2003-09-15 06:35:33 +08:00
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/* Caching code for GDB, the GNU debugger.
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2013-01-01 14:33:28 +08:00
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Copyright (C) 1992-2013 Free Software Foundation, Inc.
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1999-04-16 09:35:26 +08:00
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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2007-08-24 02:08:50 +08:00
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the Free Software Foundation; either version 3 of the License, or
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1999-04-16 09:35:26 +08:00
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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2007-08-24 02:08:50 +08:00
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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1999-04-16 09:35:26 +08:00
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#include "defs.h"
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#include "dcache.h"
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#include "gdbcmd.h"
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remove gdb_string.h
This removes gdb_string.h. This patch is purely mechanical. I
created it by running the two commands:
git rm common/gdb_string.h
perl -pi -e's/"gdb_string.h"/<string.h>/;' *.[chyl] */*.[chyl]
2013-11-18 Tom Tromey <tromey@redhat.com>
* common/gdb_string.h: Remove.
* aarch64-tdep.c: Use string.h, not gdb_string.h.
* ada-exp.y: Use string.h, not gdb_string.h.
* ada-lang.c: Use string.h, not gdb_string.h.
* ada-lex.l: Use string.h, not gdb_string.h.
* ada-typeprint.c: Use string.h, not gdb_string.h.
* ada-valprint.c: Use string.h, not gdb_string.h.
* aix-thread.c: Use string.h, not gdb_string.h.
* alpha-linux-tdep.c: Use string.h, not gdb_string.h.
* alpha-mdebug-tdep.c: Use string.h, not gdb_string.h.
* alpha-nat.c: Use string.h, not gdb_string.h.
* alpha-osf1-tdep.c: Use string.h, not gdb_string.h.
* alpha-tdep.c: Use string.h, not gdb_string.h.
* alphanbsd-tdep.c: Use string.h, not gdb_string.h.
* amd64-dicos-tdep.c: Use string.h, not gdb_string.h.
* amd64-linux-nat.c: Use string.h, not gdb_string.h.
* amd64-linux-tdep.c: Use string.h, not gdb_string.h.
* amd64-nat.c: Use string.h, not gdb_string.h.
* amd64-sol2-tdep.c: Use string.h, not gdb_string.h.
* amd64fbsd-tdep.c: Use string.h, not gdb_string.h.
* amd64obsd-tdep.c: Use string.h, not gdb_string.h.
* arch-utils.c: Use string.h, not gdb_string.h.
* arm-linux-nat.c: Use string.h, not gdb_string.h.
* arm-linux-tdep.c: Use string.h, not gdb_string.h.
* arm-tdep.c: Use string.h, not gdb_string.h.
* arm-wince-tdep.c: Use string.h, not gdb_string.h.
* armbsd-tdep.c: Use string.h, not gdb_string.h.
* armnbsd-nat.c: Use string.h, not gdb_string.h.
* armnbsd-tdep.c: Use string.h, not gdb_string.h.
* armobsd-tdep.c: Use string.h, not gdb_string.h.
* avr-tdep.c: Use string.h, not gdb_string.h.
* ax-gdb.c: Use string.h, not gdb_string.h.
* ax-general.c: Use string.h, not gdb_string.h.
* bcache.c: Use string.h, not gdb_string.h.
* bfin-tdep.c: Use string.h, not gdb_string.h.
* breakpoint.c: Use string.h, not gdb_string.h.
* build-id.c: Use string.h, not gdb_string.h.
* buildsym.c: Use string.h, not gdb_string.h.
* c-exp.y: Use string.h, not gdb_string.h.
* c-lang.c: Use string.h, not gdb_string.h.
* c-typeprint.c: Use string.h, not gdb_string.h.
* c-valprint.c: Use string.h, not gdb_string.h.
* charset.c: Use string.h, not gdb_string.h.
* cli-out.c: Use string.h, not gdb_string.h.
* cli/cli-cmds.c: Use string.h, not gdb_string.h.
* cli/cli-decode.c: Use string.h, not gdb_string.h.
* cli/cli-dump.c: Use string.h, not gdb_string.h.
* cli/cli-interp.c: Use string.h, not gdb_string.h.
* cli/cli-logging.c: Use string.h, not gdb_string.h.
* cli/cli-script.c: Use string.h, not gdb_string.h.
* cli/cli-setshow.c: Use string.h, not gdb_string.h.
* cli/cli-utils.c: Use string.h, not gdb_string.h.
* coffread.c: Use string.h, not gdb_string.h.
* common/common-utils.c: Use string.h, not gdb_string.h.
* common/filestuff.c: Use string.h, not gdb_string.h.
* common/linux-procfs.c: Use string.h, not gdb_string.h.
* common/linux-ptrace.c: Use string.h, not gdb_string.h.
* common/signals.c: Use string.h, not gdb_string.h.
* common/vec.h: Use string.h, not gdb_string.h.
* core-regset.c: Use string.h, not gdb_string.h.
* corefile.c: Use string.h, not gdb_string.h.
* corelow.c: Use string.h, not gdb_string.h.
* cp-abi.c: Use string.h, not gdb_string.h.
* cp-support.c: Use string.h, not gdb_string.h.
* cp-valprint.c: Use string.h, not gdb_string.h.
* cris-tdep.c: Use string.h, not gdb_string.h.
* d-lang.c: Use string.h, not gdb_string.h.
* dbxread.c: Use string.h, not gdb_string.h.
* dcache.c: Use string.h, not gdb_string.h.
* demangle.c: Use string.h, not gdb_string.h.
* dicos-tdep.c: Use string.h, not gdb_string.h.
* disasm.c: Use string.h, not gdb_string.h.
* doublest.c: Use string.h, not gdb_string.h.
* dsrec.c: Use string.h, not gdb_string.h.
* dummy-frame.c: Use string.h, not gdb_string.h.
* dwarf2-frame.c: Use string.h, not gdb_string.h.
* dwarf2loc.c: Use string.h, not gdb_string.h.
* dwarf2read.c: Use string.h, not gdb_string.h.
* elfread.c: Use string.h, not gdb_string.h.
* environ.c: Use string.h, not gdb_string.h.
* eval.c: Use string.h, not gdb_string.h.
* event-loop.c: Use string.h, not gdb_string.h.
* exceptions.c: Use string.h, not gdb_string.h.
* exec.c: Use string.h, not gdb_string.h.
* expprint.c: Use string.h, not gdb_string.h.
* f-exp.y: Use string.h, not gdb_string.h.
* f-lang.c: Use string.h, not gdb_string.h.
* f-typeprint.c: Use string.h, not gdb_string.h.
* f-valprint.c: Use string.h, not gdb_string.h.
* fbsd-nat.c: Use string.h, not gdb_string.h.
* findcmd.c: Use string.h, not gdb_string.h.
* findvar.c: Use string.h, not gdb_string.h.
* fork-child.c: Use string.h, not gdb_string.h.
* frame.c: Use string.h, not gdb_string.h.
* frv-linux-tdep.c: Use string.h, not gdb_string.h.
* frv-tdep.c: Use string.h, not gdb_string.h.
* gdb.c: Use string.h, not gdb_string.h.
* gdb_bfd.c: Use string.h, not gdb_string.h.
* gdbarch.c: Use string.h, not gdb_string.h.
* gdbtypes.c: Use string.h, not gdb_string.h.
* gnu-nat.c: Use string.h, not gdb_string.h.
* gnu-v2-abi.c: Use string.h, not gdb_string.h.
* gnu-v3-abi.c: Use string.h, not gdb_string.h.
* go-exp.y: Use string.h, not gdb_string.h.
* go-lang.c: Use string.h, not gdb_string.h.
* go32-nat.c: Use string.h, not gdb_string.h.
* hppa-hpux-tdep.c: Use string.h, not gdb_string.h.
* hppa-linux-nat.c: Use string.h, not gdb_string.h.
* hppanbsd-tdep.c: Use string.h, not gdb_string.h.
* hppaobsd-tdep.c: Use string.h, not gdb_string.h.
* i386-cygwin-tdep.c: Use string.h, not gdb_string.h.
* i386-dicos-tdep.c: Use string.h, not gdb_string.h.
* i386-linux-nat.c: Use string.h, not gdb_string.h.
* i386-linux-tdep.c: Use string.h, not gdb_string.h.
* i386-nto-tdep.c: Use string.h, not gdb_string.h.
* i386-sol2-tdep.c: Use string.h, not gdb_string.h.
* i386-tdep.c: Use string.h, not gdb_string.h.
* i386bsd-tdep.c: Use string.h, not gdb_string.h.
* i386gnu-nat.c: Use string.h, not gdb_string.h.
* i386nbsd-tdep.c: Use string.h, not gdb_string.h.
* i386obsd-tdep.c: Use string.h, not gdb_string.h.
* i387-tdep.c: Use string.h, not gdb_string.h.
* ia64-libunwind-tdep.c: Use string.h, not gdb_string.h.
* ia64-linux-nat.c: Use string.h, not gdb_string.h.
* inf-child.c: Use string.h, not gdb_string.h.
* inf-ptrace.c: Use string.h, not gdb_string.h.
* inf-ttrace.c: Use string.h, not gdb_string.h.
* infcall.c: Use string.h, not gdb_string.h.
* infcmd.c: Use string.h, not gdb_string.h.
* inflow.c: Use string.h, not gdb_string.h.
* infrun.c: Use string.h, not gdb_string.h.
* interps.c: Use string.h, not gdb_string.h.
* iq2000-tdep.c: Use string.h, not gdb_string.h.
* irix5-nat.c: Use string.h, not gdb_string.h.
* jv-exp.y: Use string.h, not gdb_string.h.
* jv-lang.c: Use string.h, not gdb_string.h.
* jv-typeprint.c: Use string.h, not gdb_string.h.
* jv-valprint.c: Use string.h, not gdb_string.h.
* language.c: Use string.h, not gdb_string.h.
* linux-fork.c: Use string.h, not gdb_string.h.
* linux-nat.c: Use string.h, not gdb_string.h.
* lm32-tdep.c: Use string.h, not gdb_string.h.
* m2-exp.y: Use string.h, not gdb_string.h.
* m2-typeprint.c: Use string.h, not gdb_string.h.
* m32c-tdep.c: Use string.h, not gdb_string.h.
* m32r-linux-nat.c: Use string.h, not gdb_string.h.
* m32r-linux-tdep.c: Use string.h, not gdb_string.h.
* m32r-rom.c: Use string.h, not gdb_string.h.
* m32r-tdep.c: Use string.h, not gdb_string.h.
* m68hc11-tdep.c: Use string.h, not gdb_string.h.
* m68k-tdep.c: Use string.h, not gdb_string.h.
* m68kbsd-tdep.c: Use string.h, not gdb_string.h.
* m68klinux-nat.c: Use string.h, not gdb_string.h.
* m68klinux-tdep.c: Use string.h, not gdb_string.h.
* m88k-tdep.c: Use string.h, not gdb_string.h.
* macrocmd.c: Use string.h, not gdb_string.h.
* main.c: Use string.h, not gdb_string.h.
* mdebugread.c: Use string.h, not gdb_string.h.
* mem-break.c: Use string.h, not gdb_string.h.
* memattr.c: Use string.h, not gdb_string.h.
* memory-map.c: Use string.h, not gdb_string.h.
* mep-tdep.c: Use string.h, not gdb_string.h.
* mi/mi-cmd-break.c: Use string.h, not gdb_string.h.
* mi/mi-cmd-disas.c: Use string.h, not gdb_string.h.
* mi/mi-cmd-env.c: Use string.h, not gdb_string.h.
* mi/mi-cmd-stack.c: Use string.h, not gdb_string.h.
* mi/mi-cmd-var.c: Use string.h, not gdb_string.h.
* mi/mi-cmds.c: Use string.h, not gdb_string.h.
* mi/mi-console.c: Use string.h, not gdb_string.h.
* mi/mi-getopt.c: Use string.h, not gdb_string.h.
* mi/mi-interp.c: Use string.h, not gdb_string.h.
* mi/mi-main.c: Use string.h, not gdb_string.h.
* mi/mi-parse.c: Use string.h, not gdb_string.h.
* microblaze-rom.c: Use string.h, not gdb_string.h.
* microblaze-tdep.c: Use string.h, not gdb_string.h.
* mingw-hdep.c: Use string.h, not gdb_string.h.
* minidebug.c: Use string.h, not gdb_string.h.
* minsyms.c: Use string.h, not gdb_string.h.
* mips-irix-tdep.c: Use string.h, not gdb_string.h.
* mips-linux-tdep.c: Use string.h, not gdb_string.h.
* mips-tdep.c: Use string.h, not gdb_string.h.
* mips64obsd-tdep.c: Use string.h, not gdb_string.h.
* mipsnbsd-tdep.c: Use string.h, not gdb_string.h.
* mipsread.c: Use string.h, not gdb_string.h.
* mn10300-linux-tdep.c: Use string.h, not gdb_string.h.
* mn10300-tdep.c: Use string.h, not gdb_string.h.
* monitor.c: Use string.h, not gdb_string.h.
* moxie-tdep.c: Use string.h, not gdb_string.h.
* mt-tdep.c: Use string.h, not gdb_string.h.
* nbsd-tdep.c: Use string.h, not gdb_string.h.
* nios2-linux-tdep.c: Use string.h, not gdb_string.h.
* nto-procfs.c: Use string.h, not gdb_string.h.
* nto-tdep.c: Use string.h, not gdb_string.h.
* objc-lang.c: Use string.h, not gdb_string.h.
* objfiles.c: Use string.h, not gdb_string.h.
* opencl-lang.c: Use string.h, not gdb_string.h.
* osabi.c: Use string.h, not gdb_string.h.
* osdata.c: Use string.h, not gdb_string.h.
* p-exp.y: Use string.h, not gdb_string.h.
* p-lang.c: Use string.h, not gdb_string.h.
* p-typeprint.c: Use string.h, not gdb_string.h.
* parse.c: Use string.h, not gdb_string.h.
* posix-hdep.c: Use string.h, not gdb_string.h.
* ppc-linux-nat.c: Use string.h, not gdb_string.h.
* ppc-sysv-tdep.c: Use string.h, not gdb_string.h.
* ppcfbsd-tdep.c: Use string.h, not gdb_string.h.
* ppcnbsd-tdep.c: Use string.h, not gdb_string.h.
* ppcobsd-tdep.c: Use string.h, not gdb_string.h.
* printcmd.c: Use string.h, not gdb_string.h.
* procfs.c: Use string.h, not gdb_string.h.
* prologue-value.c: Use string.h, not gdb_string.h.
* python/py-auto-load.c: Use string.h, not gdb_string.h.
* python/py-gdb-readline.c: Use string.h, not gdb_string.h.
* ravenscar-thread.c: Use string.h, not gdb_string.h.
* regcache.c: Use string.h, not gdb_string.h.
* registry.c: Use string.h, not gdb_string.h.
* remote-fileio.c: Use string.h, not gdb_string.h.
* remote-m32r-sdi.c: Use string.h, not gdb_string.h.
* remote-mips.c: Use string.h, not gdb_string.h.
* remote-sim.c: Use string.h, not gdb_string.h.
* remote.c: Use string.h, not gdb_string.h.
* reverse.c: Use string.h, not gdb_string.h.
* rs6000-aix-tdep.c: Use string.h, not gdb_string.h.
* ser-base.c: Use string.h, not gdb_string.h.
* ser-go32.c: Use string.h, not gdb_string.h.
* ser-mingw.c: Use string.h, not gdb_string.h.
* ser-pipe.c: Use string.h, not gdb_string.h.
* ser-tcp.c: Use string.h, not gdb_string.h.
* ser-unix.c: Use string.h, not gdb_string.h.
* serial.c: Use string.h, not gdb_string.h.
* sh-tdep.c: Use string.h, not gdb_string.h.
* sh64-tdep.c: Use string.h, not gdb_string.h.
* shnbsd-tdep.c: Use string.h, not gdb_string.h.
* skip.c: Use string.h, not gdb_string.h.
* sol-thread.c: Use string.h, not gdb_string.h.
* solib-dsbt.c: Use string.h, not gdb_string.h.
* solib-frv.c: Use string.h, not gdb_string.h.
* solib-osf.c: Use string.h, not gdb_string.h.
* solib-spu.c: Use string.h, not gdb_string.h.
* solib-target.c: Use string.h, not gdb_string.h.
* solib.c: Use string.h, not gdb_string.h.
* somread.c: Use string.h, not gdb_string.h.
* source.c: Use string.h, not gdb_string.h.
* sparc-nat.c: Use string.h, not gdb_string.h.
* sparc-sol2-tdep.c: Use string.h, not gdb_string.h.
* sparc-tdep.c: Use string.h, not gdb_string.h.
* sparc64-tdep.c: Use string.h, not gdb_string.h.
* sparc64fbsd-tdep.c: Use string.h, not gdb_string.h.
* sparc64nbsd-tdep.c: Use string.h, not gdb_string.h.
* sparcnbsd-tdep.c: Use string.h, not gdb_string.h.
* spu-linux-nat.c: Use string.h, not gdb_string.h.
* spu-multiarch.c: Use string.h, not gdb_string.h.
* spu-tdep.c: Use string.h, not gdb_string.h.
* stabsread.c: Use string.h, not gdb_string.h.
* stack.c: Use string.h, not gdb_string.h.
* std-regs.c: Use string.h, not gdb_string.h.
* symfile.c: Use string.h, not gdb_string.h.
* symmisc.c: Use string.h, not gdb_string.h.
* symtab.c: Use string.h, not gdb_string.h.
* target.c: Use string.h, not gdb_string.h.
* thread.c: Use string.h, not gdb_string.h.
* tilegx-linux-nat.c: Use string.h, not gdb_string.h.
* tilegx-tdep.c: Use string.h, not gdb_string.h.
* top.c: Use string.h, not gdb_string.h.
* tracepoint.c: Use string.h, not gdb_string.h.
* tui/tui-command.c: Use string.h, not gdb_string.h.
* tui/tui-data.c: Use string.h, not gdb_string.h.
* tui/tui-disasm.c: Use string.h, not gdb_string.h.
* tui/tui-file.c: Use string.h, not gdb_string.h.
* tui/tui-layout.c: Use string.h, not gdb_string.h.
* tui/tui-out.c: Use string.h, not gdb_string.h.
* tui/tui-regs.c: Use string.h, not gdb_string.h.
* tui/tui-source.c: Use string.h, not gdb_string.h.
* tui/tui-stack.c: Use string.h, not gdb_string.h.
* tui/tui-win.c: Use string.h, not gdb_string.h.
* tui/tui-windata.c: Use string.h, not gdb_string.h.
* tui/tui-winsource.c: Use string.h, not gdb_string.h.
* typeprint.c: Use string.h, not gdb_string.h.
* ui-file.c: Use string.h, not gdb_string.h.
* ui-out.c: Use string.h, not gdb_string.h.
* user-regs.c: Use string.h, not gdb_string.h.
* utils.c: Use string.h, not gdb_string.h.
* v850-tdep.c: Use string.h, not gdb_string.h.
* valarith.c: Use string.h, not gdb_string.h.
* valops.c: Use string.h, not gdb_string.h.
* valprint.c: Use string.h, not gdb_string.h.
* value.c: Use string.h, not gdb_string.h.
* varobj.c: Use string.h, not gdb_string.h.
* vax-tdep.c: Use string.h, not gdb_string.h.
* vaxnbsd-tdep.c: Use string.h, not gdb_string.h.
* vaxobsd-tdep.c: Use string.h, not gdb_string.h.
* windows-nat.c: Use string.h, not gdb_string.h.
* xcoffread.c: Use string.h, not gdb_string.h.
* xml-support.c: Use string.h, not gdb_string.h.
* xstormy16-tdep.c: Use string.h, not gdb_string.h.
* xtensa-linux-nat.c: Use string.h, not gdb_string.h.
2013-11-06 22:14:23 +08:00
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#include <string.h>
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1999-04-16 09:35:26 +08:00
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#include "gdbcore.h"
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2013-10-31 16:50:15 +08:00
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#include "target-dcache.h"
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2009-09-01 04:18:46 +08:00
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#include "inferior.h"
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2009-08-21 06:30:12 +08:00
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#include "splay-tree.h"
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1999-04-16 09:35:26 +08:00
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2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* NEWS: Mention dcache configuration.
* dcache.c (dcache_set_list, dcache_show_list): New variables.
(dcache_size, dcache_line_size): New variables.
(LINE_SIZE_MASK, XFORM, MASK): Adjust.
(struct dcache_block): Make it expandable.
(struct dcache_struct): New field.
(dcache_invalidate): Discard freelist upon dcache_line_size changes.
(dcache_hit, dcache_alloc, dcache_peek_byte): Adjust.
(dcache_poke_byte, dcache_print_line): Adjust.
(set_dcache_size, set_dcache_line_size): New functions.
(set_dcache_command, show_dcache_command): New functions.
(_initialize_dcache): Add new commands.
doc/ChangeLog:
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* gdb.texinfo (Caching Remote Data): Document {set,show} dcache
size and line-size.
2011-07-26 23:24:02 +08:00
|
|
|
/* Commands with a prefix of `{set,show} dcache'. */
|
|
|
|
|
static struct cmd_list_element *dcache_set_list = NULL;
|
|
|
|
|
static struct cmd_list_element *dcache_show_list = NULL;
|
|
|
|
|
|
* exec.c (xfer_memory): Add attrib argument.
* infptrace.c (child_xfer_memory): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
* remote-adapt.c (adapt_xfer_inferior_memory): Likewise.
* remote-array.c (array_xfer_memory): Likewise.
* remote-bug.c (bug_xfer_memory): Likewise.
* remote-e7000.c (e7000_xfer_inferior_memory): Likewise.
* remote-eb.c (eb_xfer_inferior_memory): Likewise.
* remote-es.c (es1800_xfer_inferior_memory): Likewise.
* remote-mips.c (mips_xfer_memory): Likewise.
* remote-mm.c (mm_xfer_inferior_memory): Likewise.
* remote-nindy.c (nindy_xfer_inferior_memory): Likewise.
* remote-os9k.c (rombug_xfer_inferior_memory): Likewise.
* remote-rdi.c (arm_rdi_xfer_memory): Likewise.
* remote-rdp.c (remote_rdp_xfer_inferior_memory): Likewise.
* remote-sds.c (sds_xfer_memory): Likewise.
* remote-sim.c (gdbsim_xfer_inferior_memory): Likewise.
* remote-st.c (st2000_xfer_inferior_memory): Likewise.
* remote-udi.c (udi_xfer_inferior_memory): Likewise.
* remote-vx.c (vx_xfer_memory): Likewise.
* remote.c (remote_xfer_memory): Likewise.
* target.c (debug_to_xfer_memory, do_xfer_memory): Likewise.
* target.h (child_xfer_memory, do_xfer_memory, xfer_memory): Likewise.
* target.h (#include "memattr.h"): Added.
(target_ops.to_xfer_memory): Add attrib argument.
* wince.c (_initialize_inftarg): Removed call to set_dcache_state.
* dcache.h (set_dcache_state): Removed declaration.
* dcache.c (set_dcache_state): Removed definition
* dcache.c: Update module comment, as dcache is now enabled and
disabled with memory region attributes instead of by the global
variable "remotecache". Add comment describing the interaction
between dcache and memory region attributes.
(dcache_xfer_memory): Add comment describing benefits of moving
cache writeback to a higher level.
(dcache_struct): Removed cache_has_stuff field. This was used to
record whether the cache had been accessed in order to invalidate
it when it was disabled. However, this is not needed because the
cache is write through and the code that enables, disables, and
deletes memory regions invalidate the cache. Add comment which
suggests that we could be more selective and only invalidate those
cache lines containing data from those memory regions.
(dcache_invalidate): Updated.
(dcache_xfer_memory): Updated.
(dcache_alloc): Don't abort() if dcache_enabled_p is clear.
(dcache_xfer_memory): Removed code that called do_xfer_memory() to
perform a uncached transfer if dcache_enabled_p was clear. This
function is now only called if caching is enabled for the memory
region.
(dcache_info): Always print cache info.
* target.c (do_xfer_memory): Add attrib argument.
(target_xfer_memory, target_xfer_memory_partial): Break transfer
into chunks defined by memory regions, pass region attributes to
do_xfer_memory().
* dcache.c (dcache_read_line, dcache_write_line): Likewise.
* Makefile.in (SFILES): Add memattr.c.
(COMMON_OBS): Add memattr.o.
(dcache.o): Add target.h to dependencies.
* memattr.c: New file.
* memattr.h: Likewise.
2001-01-24 06:48:56 +08:00
|
|
|
/* The data cache could lead to incorrect results because it doesn't
|
|
|
|
|
know about volatile variables, thus making it impossible to debug
|
|
|
|
|
functions which use memory mapped I/O devices. Set the nocache
|
|
|
|
|
memory region attribute in those cases.
|
1999-04-16 09:35:26 +08:00
|
|
|
|
2009-08-21 06:30:12 +08:00
|
|
|
In general the dcache speeds up performance. Some speed improvement
|
1999-04-16 09:35:26 +08:00
|
|
|
comes from the actual caching mechanism, but the major gain is in
|
|
|
|
|
the reduction of the remote protocol overhead; instead of reading
|
|
|
|
|
or writing a large area of memory in 4 byte requests, the cache
|
2009-08-21 06:30:12 +08:00
|
|
|
bundles up the requests into LINE_SIZE chunks, reducing overhead
|
|
|
|
|
significantly. This is most useful when accessing a large amount
|
|
|
|
|
of data, such as when performing a backtrace.
|
|
|
|
|
|
|
|
|
|
The cache is a splay tree along with a linked list for replacement.
|
2009-11-11 02:36:50 +08:00
|
|
|
Each block caches a LINE_SIZE area of memory. Within each line we
|
|
|
|
|
remember the address of the line (which must be a multiple of
|
|
|
|
|
LINE_SIZE) and the actual data block.
|
2009-08-21 06:30:12 +08:00
|
|
|
|
|
|
|
|
Lines are only allocated as needed, so DCACHE_SIZE really specifies the
|
|
|
|
|
*maximum* number of lines in the cache.
|
|
|
|
|
|
|
|
|
|
At present, the cache is write-through rather than writeback: as soon
|
|
|
|
|
as data is written to the cache, it is also immediately written to
|
|
|
|
|
the target. Therefore, cache lines are never "dirty". Whether a given
|
|
|
|
|
line is valid or not depends on where it is stored in the dcache_struct;
|
|
|
|
|
there is no per-block valid flag. */
|
1999-04-16 09:35:26 +08:00
|
|
|
|
* exec.c (xfer_memory): Add attrib argument.
* infptrace.c (child_xfer_memory): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
* remote-adapt.c (adapt_xfer_inferior_memory): Likewise.
* remote-array.c (array_xfer_memory): Likewise.
* remote-bug.c (bug_xfer_memory): Likewise.
* remote-e7000.c (e7000_xfer_inferior_memory): Likewise.
* remote-eb.c (eb_xfer_inferior_memory): Likewise.
* remote-es.c (es1800_xfer_inferior_memory): Likewise.
* remote-mips.c (mips_xfer_memory): Likewise.
* remote-mm.c (mm_xfer_inferior_memory): Likewise.
* remote-nindy.c (nindy_xfer_inferior_memory): Likewise.
* remote-os9k.c (rombug_xfer_inferior_memory): Likewise.
* remote-rdi.c (arm_rdi_xfer_memory): Likewise.
* remote-rdp.c (remote_rdp_xfer_inferior_memory): Likewise.
* remote-sds.c (sds_xfer_memory): Likewise.
* remote-sim.c (gdbsim_xfer_inferior_memory): Likewise.
* remote-st.c (st2000_xfer_inferior_memory): Likewise.
* remote-udi.c (udi_xfer_inferior_memory): Likewise.
* remote-vx.c (vx_xfer_memory): Likewise.
* remote.c (remote_xfer_memory): Likewise.
* target.c (debug_to_xfer_memory, do_xfer_memory): Likewise.
* target.h (child_xfer_memory, do_xfer_memory, xfer_memory): Likewise.
* target.h (#include "memattr.h"): Added.
(target_ops.to_xfer_memory): Add attrib argument.
* wince.c (_initialize_inftarg): Removed call to set_dcache_state.
* dcache.h (set_dcache_state): Removed declaration.
* dcache.c (set_dcache_state): Removed definition
* dcache.c: Update module comment, as dcache is now enabled and
disabled with memory region attributes instead of by the global
variable "remotecache". Add comment describing the interaction
between dcache and memory region attributes.
(dcache_xfer_memory): Add comment describing benefits of moving
cache writeback to a higher level.
(dcache_struct): Removed cache_has_stuff field. This was used to
record whether the cache had been accessed in order to invalidate
it when it was disabled. However, this is not needed because the
cache is write through and the code that enables, disables, and
deletes memory regions invalidate the cache. Add comment which
suggests that we could be more selective and only invalidate those
cache lines containing data from those memory regions.
(dcache_invalidate): Updated.
(dcache_xfer_memory): Updated.
(dcache_alloc): Don't abort() if dcache_enabled_p is clear.
(dcache_xfer_memory): Removed code that called do_xfer_memory() to
perform a uncached transfer if dcache_enabled_p was clear. This
function is now only called if caching is enabled for the memory
region.
(dcache_info): Always print cache info.
* target.c (do_xfer_memory): Add attrib argument.
(target_xfer_memory, target_xfer_memory_partial): Break transfer
into chunks defined by memory regions, pass region attributes to
do_xfer_memory().
* dcache.c (dcache_read_line, dcache_write_line): Likewise.
* Makefile.in (SFILES): Add memattr.c.
(COMMON_OBS): Add memattr.o.
(dcache.o): Add target.h to dependencies.
* memattr.c: New file.
* memattr.h: Likewise.
2001-01-24 06:48:56 +08:00
|
|
|
/* NOTE: Interaction of dcache and memory region attributes
|
1999-04-16 09:35:26 +08:00
|
|
|
|
* exec.c (xfer_memory): Add attrib argument.
* infptrace.c (child_xfer_memory): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
* remote-adapt.c (adapt_xfer_inferior_memory): Likewise.
* remote-array.c (array_xfer_memory): Likewise.
* remote-bug.c (bug_xfer_memory): Likewise.
* remote-e7000.c (e7000_xfer_inferior_memory): Likewise.
* remote-eb.c (eb_xfer_inferior_memory): Likewise.
* remote-es.c (es1800_xfer_inferior_memory): Likewise.
* remote-mips.c (mips_xfer_memory): Likewise.
* remote-mm.c (mm_xfer_inferior_memory): Likewise.
* remote-nindy.c (nindy_xfer_inferior_memory): Likewise.
* remote-os9k.c (rombug_xfer_inferior_memory): Likewise.
* remote-rdi.c (arm_rdi_xfer_memory): Likewise.
* remote-rdp.c (remote_rdp_xfer_inferior_memory): Likewise.
* remote-sds.c (sds_xfer_memory): Likewise.
* remote-sim.c (gdbsim_xfer_inferior_memory): Likewise.
* remote-st.c (st2000_xfer_inferior_memory): Likewise.
* remote-udi.c (udi_xfer_inferior_memory): Likewise.
* remote-vx.c (vx_xfer_memory): Likewise.
* remote.c (remote_xfer_memory): Likewise.
* target.c (debug_to_xfer_memory, do_xfer_memory): Likewise.
* target.h (child_xfer_memory, do_xfer_memory, xfer_memory): Likewise.
* target.h (#include "memattr.h"): Added.
(target_ops.to_xfer_memory): Add attrib argument.
* wince.c (_initialize_inftarg): Removed call to set_dcache_state.
* dcache.h (set_dcache_state): Removed declaration.
* dcache.c (set_dcache_state): Removed definition
* dcache.c: Update module comment, as dcache is now enabled and
disabled with memory region attributes instead of by the global
variable "remotecache". Add comment describing the interaction
between dcache and memory region attributes.
(dcache_xfer_memory): Add comment describing benefits of moving
cache writeback to a higher level.
(dcache_struct): Removed cache_has_stuff field. This was used to
record whether the cache had been accessed in order to invalidate
it when it was disabled. However, this is not needed because the
cache is write through and the code that enables, disables, and
deletes memory regions invalidate the cache. Add comment which
suggests that we could be more selective and only invalidate those
cache lines containing data from those memory regions.
(dcache_invalidate): Updated.
(dcache_xfer_memory): Updated.
(dcache_alloc): Don't abort() if dcache_enabled_p is clear.
(dcache_xfer_memory): Removed code that called do_xfer_memory() to
perform a uncached transfer if dcache_enabled_p was clear. This
function is now only called if caching is enabled for the memory
region.
(dcache_info): Always print cache info.
* target.c (do_xfer_memory): Add attrib argument.
(target_xfer_memory, target_xfer_memory_partial): Break transfer
into chunks defined by memory regions, pass region attributes to
do_xfer_memory().
* dcache.c (dcache_read_line, dcache_write_line): Likewise.
* Makefile.in (SFILES): Add memattr.c.
(COMMON_OBS): Add memattr.o.
(dcache.o): Add target.h to dependencies.
* memattr.c: New file.
* memattr.h: Likewise.
2001-01-24 06:48:56 +08:00
|
|
|
As there is no requirement that memory region attributes be aligned
|
|
|
|
|
to or be a multiple of the dcache page size, dcache_read_line() and
|
|
|
|
|
dcache_write_line() must break up the page by memory region. If a
|
|
|
|
|
chunk does not have the cache attribute set, an invalid memory type
|
|
|
|
|
is set, etc., then the chunk is skipped. Those chunks are handled
|
|
|
|
|
in target_xfer_memory() (or target_xfer_memory_partial()).
|
1999-04-16 09:35:26 +08:00
|
|
|
|
* exec.c (xfer_memory): Add attrib argument.
* infptrace.c (child_xfer_memory): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
* remote-adapt.c (adapt_xfer_inferior_memory): Likewise.
* remote-array.c (array_xfer_memory): Likewise.
* remote-bug.c (bug_xfer_memory): Likewise.
* remote-e7000.c (e7000_xfer_inferior_memory): Likewise.
* remote-eb.c (eb_xfer_inferior_memory): Likewise.
* remote-es.c (es1800_xfer_inferior_memory): Likewise.
* remote-mips.c (mips_xfer_memory): Likewise.
* remote-mm.c (mm_xfer_inferior_memory): Likewise.
* remote-nindy.c (nindy_xfer_inferior_memory): Likewise.
* remote-os9k.c (rombug_xfer_inferior_memory): Likewise.
* remote-rdi.c (arm_rdi_xfer_memory): Likewise.
* remote-rdp.c (remote_rdp_xfer_inferior_memory): Likewise.
* remote-sds.c (sds_xfer_memory): Likewise.
* remote-sim.c (gdbsim_xfer_inferior_memory): Likewise.
* remote-st.c (st2000_xfer_inferior_memory): Likewise.
* remote-udi.c (udi_xfer_inferior_memory): Likewise.
* remote-vx.c (vx_xfer_memory): Likewise.
* remote.c (remote_xfer_memory): Likewise.
* target.c (debug_to_xfer_memory, do_xfer_memory): Likewise.
* target.h (child_xfer_memory, do_xfer_memory, xfer_memory): Likewise.
* target.h (#include "memattr.h"): Added.
(target_ops.to_xfer_memory): Add attrib argument.
* wince.c (_initialize_inftarg): Removed call to set_dcache_state.
* dcache.h (set_dcache_state): Removed declaration.
* dcache.c (set_dcache_state): Removed definition
* dcache.c: Update module comment, as dcache is now enabled and
disabled with memory region attributes instead of by the global
variable "remotecache". Add comment describing the interaction
between dcache and memory region attributes.
(dcache_xfer_memory): Add comment describing benefits of moving
cache writeback to a higher level.
(dcache_struct): Removed cache_has_stuff field. This was used to
record whether the cache had been accessed in order to invalidate
it when it was disabled. However, this is not needed because the
cache is write through and the code that enables, disables, and
deletes memory regions invalidate the cache. Add comment which
suggests that we could be more selective and only invalidate those
cache lines containing data from those memory regions.
(dcache_invalidate): Updated.
(dcache_xfer_memory): Updated.
(dcache_alloc): Don't abort() if dcache_enabled_p is clear.
(dcache_xfer_memory): Removed code that called do_xfer_memory() to
perform a uncached transfer if dcache_enabled_p was clear. This
function is now only called if caching is enabled for the memory
region.
(dcache_info): Always print cache info.
* target.c (do_xfer_memory): Add attrib argument.
(target_xfer_memory, target_xfer_memory_partial): Break transfer
into chunks defined by memory regions, pass region attributes to
do_xfer_memory().
* dcache.c (dcache_read_line, dcache_write_line): Likewise.
* Makefile.in (SFILES): Add memattr.c.
(COMMON_OBS): Add memattr.o.
(dcache.o): Add target.h to dependencies.
* memattr.c: New file.
* memattr.h: Likewise.
2001-01-24 06:48:56 +08:00
|
|
|
This doesn't occur very often. The most common occurance is when
|
|
|
|
|
the last bit of the .text segment and the first bit of the .data
|
|
|
|
|
segment fall within the same dcache page with a ro/cacheable memory
|
|
|
|
|
region defined for the .text segment and a rw/non-cacheable memory
|
2009-08-21 06:30:12 +08:00
|
|
|
region defined for the .data segment. */
|
1999-04-16 09:35:26 +08:00
|
|
|
|
2009-08-21 06:30:12 +08:00
|
|
|
/* The maximum number of lines stored. The total size of the cache is
|
|
|
|
|
equal to DCACHE_SIZE times LINE_SIZE. */
|
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* NEWS: Mention dcache configuration.
* dcache.c (dcache_set_list, dcache_show_list): New variables.
(dcache_size, dcache_line_size): New variables.
(LINE_SIZE_MASK, XFORM, MASK): Adjust.
(struct dcache_block): Make it expandable.
(struct dcache_struct): New field.
(dcache_invalidate): Discard freelist upon dcache_line_size changes.
(dcache_hit, dcache_alloc, dcache_peek_byte): Adjust.
(dcache_poke_byte, dcache_print_line): Adjust.
(set_dcache_size, set_dcache_line_size): New functions.
(set_dcache_command, show_dcache_command): New functions.
(_initialize_dcache): Add new commands.
doc/ChangeLog:
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* gdb.texinfo (Caching Remote Data): Document {set,show} dcache
size and line-size.
2011-07-26 23:24:02 +08:00
|
|
|
#define DCACHE_DEFAULT_SIZE 4096
|
|
|
|
|
static unsigned dcache_size = DCACHE_DEFAULT_SIZE;
|
1999-04-16 09:35:26 +08:00
|
|
|
|
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* NEWS: Mention dcache configuration.
* dcache.c (dcache_set_list, dcache_show_list): New variables.
(dcache_size, dcache_line_size): New variables.
(LINE_SIZE_MASK, XFORM, MASK): Adjust.
(struct dcache_block): Make it expandable.
(struct dcache_struct): New field.
(dcache_invalidate): Discard freelist upon dcache_line_size changes.
(dcache_hit, dcache_alloc, dcache_peek_byte): Adjust.
(dcache_poke_byte, dcache_print_line): Adjust.
(set_dcache_size, set_dcache_line_size): New functions.
(set_dcache_command, show_dcache_command): New functions.
(_initialize_dcache): Add new commands.
doc/ChangeLog:
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* gdb.texinfo (Caching Remote Data): Document {set,show} dcache
size and line-size.
2011-07-26 23:24:02 +08:00
|
|
|
/* The default size of a cache line. Smaller values reduce the time taken to
|
2009-08-21 06:30:12 +08:00
|
|
|
read a single byte and make the cache more granular, but increase
|
|
|
|
|
overhead and reduce the effectiveness of the cache as a prefetcher. */
|
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* NEWS: Mention dcache configuration.
* dcache.c (dcache_set_list, dcache_show_list): New variables.
(dcache_size, dcache_line_size): New variables.
(LINE_SIZE_MASK, XFORM, MASK): Adjust.
(struct dcache_block): Make it expandable.
(struct dcache_struct): New field.
(dcache_invalidate): Discard freelist upon dcache_line_size changes.
(dcache_hit, dcache_alloc, dcache_peek_byte): Adjust.
(dcache_poke_byte, dcache_print_line): Adjust.
(set_dcache_size, set_dcache_line_size): New functions.
(set_dcache_command, show_dcache_command): New functions.
(_initialize_dcache): Add new commands.
doc/ChangeLog:
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* gdb.texinfo (Caching Remote Data): Document {set,show} dcache
size and line-size.
2011-07-26 23:24:02 +08:00
|
|
|
#define DCACHE_DEFAULT_LINE_SIZE 64
|
|
|
|
|
static unsigned dcache_line_size = DCACHE_DEFAULT_LINE_SIZE;
|
1999-04-16 09:35:26 +08:00
|
|
|
|
|
|
|
|
/* Each cache block holds LINE_SIZE bytes of data
|
|
|
|
|
starting at a multiple-of-LINE_SIZE address. */
|
|
|
|
|
|
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* NEWS: Mention dcache configuration.
* dcache.c (dcache_set_list, dcache_show_list): New variables.
(dcache_size, dcache_line_size): New variables.
(LINE_SIZE_MASK, XFORM, MASK): Adjust.
(struct dcache_block): Make it expandable.
(struct dcache_struct): New field.
(dcache_invalidate): Discard freelist upon dcache_line_size changes.
(dcache_hit, dcache_alloc, dcache_peek_byte): Adjust.
(dcache_poke_byte, dcache_print_line): Adjust.
(set_dcache_size, set_dcache_line_size): New functions.
(set_dcache_command, show_dcache_command): New functions.
(_initialize_dcache): Add new commands.
doc/ChangeLog:
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* gdb.texinfo (Caching Remote Data): Document {set,show} dcache
size and line-size.
2011-07-26 23:24:02 +08:00
|
|
|
#define LINE_SIZE_MASK(dcache) ((dcache->line_size - 1))
|
|
|
|
|
#define XFORM(dcache, x) ((x) & LINE_SIZE_MASK (dcache))
|
|
|
|
|
#define MASK(dcache, x) ((x) & ~LINE_SIZE_MASK (dcache))
|
1999-04-16 09:35:26 +08:00
|
|
|
|
|
|
|
|
struct dcache_block
|
2009-08-21 06:30:12 +08:00
|
|
|
{
|
2011-01-08 03:36:19 +08:00
|
|
|
/* For least-recently-allocated and free lists. */
|
2009-11-14 02:51:08 +08:00
|
|
|
struct dcache_block *prev;
|
|
|
|
|
struct dcache_block *next;
|
|
|
|
|
|
2009-08-21 06:30:12 +08:00
|
|
|
CORE_ADDR addr; /* address of data */
|
|
|
|
|
int refs; /* # hits */
|
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* NEWS: Mention dcache configuration.
* dcache.c (dcache_set_list, dcache_show_list): New variables.
(dcache_size, dcache_line_size): New variables.
(LINE_SIZE_MASK, XFORM, MASK): Adjust.
(struct dcache_block): Make it expandable.
(struct dcache_struct): New field.
(dcache_invalidate): Discard freelist upon dcache_line_size changes.
(dcache_hit, dcache_alloc, dcache_peek_byte): Adjust.
(dcache_poke_byte, dcache_print_line): Adjust.
(set_dcache_size, set_dcache_line_size): New functions.
(set_dcache_command, show_dcache_command): New functions.
(_initialize_dcache): Add new commands.
doc/ChangeLog:
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* gdb.texinfo (Caching Remote Data): Document {set,show} dcache
size and line-size.
2011-07-26 23:24:02 +08:00
|
|
|
gdb_byte data[1]; /* line_size bytes at given address */
|
2009-08-21 06:30:12 +08:00
|
|
|
};
|
* exec.c (xfer_memory): Add attrib argument.
* infptrace.c (child_xfer_memory): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
* remote-adapt.c (adapt_xfer_inferior_memory): Likewise.
* remote-array.c (array_xfer_memory): Likewise.
* remote-bug.c (bug_xfer_memory): Likewise.
* remote-e7000.c (e7000_xfer_inferior_memory): Likewise.
* remote-eb.c (eb_xfer_inferior_memory): Likewise.
* remote-es.c (es1800_xfer_inferior_memory): Likewise.
* remote-mips.c (mips_xfer_memory): Likewise.
* remote-mm.c (mm_xfer_inferior_memory): Likewise.
* remote-nindy.c (nindy_xfer_inferior_memory): Likewise.
* remote-os9k.c (rombug_xfer_inferior_memory): Likewise.
* remote-rdi.c (arm_rdi_xfer_memory): Likewise.
* remote-rdp.c (remote_rdp_xfer_inferior_memory): Likewise.
* remote-sds.c (sds_xfer_memory): Likewise.
* remote-sim.c (gdbsim_xfer_inferior_memory): Likewise.
* remote-st.c (st2000_xfer_inferior_memory): Likewise.
* remote-udi.c (udi_xfer_inferior_memory): Likewise.
* remote-vx.c (vx_xfer_memory): Likewise.
* remote.c (remote_xfer_memory): Likewise.
* target.c (debug_to_xfer_memory, do_xfer_memory): Likewise.
* target.h (child_xfer_memory, do_xfer_memory, xfer_memory): Likewise.
* target.h (#include "memattr.h"): Added.
(target_ops.to_xfer_memory): Add attrib argument.
* wince.c (_initialize_inftarg): Removed call to set_dcache_state.
* dcache.h (set_dcache_state): Removed declaration.
* dcache.c (set_dcache_state): Removed definition
* dcache.c: Update module comment, as dcache is now enabled and
disabled with memory region attributes instead of by the global
variable "remotecache". Add comment describing the interaction
between dcache and memory region attributes.
(dcache_xfer_memory): Add comment describing benefits of moving
cache writeback to a higher level.
(dcache_struct): Removed cache_has_stuff field. This was used to
record whether the cache had been accessed in order to invalidate
it when it was disabled. However, this is not needed because the
cache is write through and the code that enables, disables, and
deletes memory regions invalidate the cache. Add comment which
suggests that we could be more selective and only invalidate those
cache lines containing data from those memory regions.
(dcache_invalidate): Updated.
(dcache_xfer_memory): Updated.
(dcache_alloc): Don't abort() if dcache_enabled_p is clear.
(dcache_xfer_memory): Removed code that called do_xfer_memory() to
perform a uncached transfer if dcache_enabled_p was clear. This
function is now only called if caching is enabled for the memory
region.
(dcache_info): Always print cache info.
* target.c (do_xfer_memory): Add attrib argument.
(target_xfer_memory, target_xfer_memory_partial): Break transfer
into chunks defined by memory regions, pass region attributes to
do_xfer_memory().
* dcache.c (dcache_read_line, dcache_write_line): Likewise.
* Makefile.in (SFILES): Add memattr.c.
(COMMON_OBS): Add memattr.o.
(dcache.o): Add target.h to dependencies.
* memattr.c: New file.
* memattr.h: Likewise.
2001-01-24 06:48:56 +08:00
|
|
|
|
1999-07-08 04:19:36 +08:00
|
|
|
struct dcache_struct
|
2009-08-21 06:30:12 +08:00
|
|
|
{
|
|
|
|
|
splay_tree tree;
|
2011-01-08 03:36:19 +08:00
|
|
|
struct dcache_block *oldest; /* least-recently-allocated list. */
|
1999-04-16 09:35:26 +08:00
|
|
|
|
2009-11-14 02:51:08 +08:00
|
|
|
/* The free list is maintained identically to OLDEST to simplify
|
|
|
|
|
the code: we only need one set of accessors. */
|
2009-08-21 06:30:12 +08:00
|
|
|
struct dcache_block *freelist;
|
1999-04-16 09:35:26 +08:00
|
|
|
|
2009-08-21 06:30:12 +08:00
|
|
|
/* The number of in-use lines in the cache. */
|
|
|
|
|
int size;
|
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* NEWS: Mention dcache configuration.
* dcache.c (dcache_set_list, dcache_show_list): New variables.
(dcache_size, dcache_line_size): New variables.
(LINE_SIZE_MASK, XFORM, MASK): Adjust.
(struct dcache_block): Make it expandable.
(struct dcache_struct): New field.
(dcache_invalidate): Discard freelist upon dcache_line_size changes.
(dcache_hit, dcache_alloc, dcache_peek_byte): Adjust.
(dcache_poke_byte, dcache_print_line): Adjust.
(set_dcache_size, set_dcache_line_size): New functions.
(set_dcache_command, show_dcache_command): New functions.
(_initialize_dcache): Add new commands.
doc/ChangeLog:
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* gdb.texinfo (Caching Remote Data): Document {set,show} dcache
size and line-size.
2011-07-26 23:24:02 +08:00
|
|
|
CORE_ADDR line_size; /* current line_size. */
|
2009-09-01 04:18:46 +08:00
|
|
|
|
|
|
|
|
/* The ptid of last inferior to use cache or null_ptid. */
|
|
|
|
|
ptid_t ptid;
|
2009-08-21 06:30:12 +08:00
|
|
|
};
|
1999-04-16 09:35:26 +08:00
|
|
|
|
2009-11-14 02:51:08 +08:00
|
|
|
typedef void (block_func) (struct dcache_block *block, void *param);
|
|
|
|
|
|
2000-09-01 08:12:10 +08:00
|
|
|
static struct dcache_block *dcache_hit (DCACHE *dcache, CORE_ADDR addr);
|
1999-04-16 09:35:26 +08:00
|
|
|
|
2000-09-01 08:12:10 +08:00
|
|
|
static int dcache_read_line (DCACHE *dcache, struct dcache_block *db);
|
1999-04-16 09:35:26 +08:00
|
|
|
|
2000-09-01 08:12:10 +08:00
|
|
|
static struct dcache_block *dcache_alloc (DCACHE *dcache, CORE_ADDR addr);
|
|
|
|
|
|
2000-05-28 09:12:42 +08:00
|
|
|
static void dcache_info (char *exp, int tty);
|
1999-04-16 09:35:26 +08:00
|
|
|
|
2000-05-28 09:12:42 +08:00
|
|
|
void _initialize_dcache (void);
|
1999-04-16 09:35:26 +08:00
|
|
|
|
2009-09-01 04:18:46 +08:00
|
|
|
static int dcache_enabled_p = 0; /* OBSOLETE */
|
2008-09-24 02:35:32 +08:00
|
|
|
|
2005-02-24 Andrew Cagney <cagney@gnu.org>
Add show_VARIABLE functions, update add_setshow call.
* varobj.c (_initialize_varobj, show_varobjdebug): Add and update.
* valprint.c (_initialize_valprint, show_print_max)
(show_stop_print_at_null, show_repeat_count_threshold)
(show_prettyprint_structs, show_unionprint)
(show_prettyprint_arrays, show_addressprint, show_input_radix)
(show_output_radix): Ditto.
* valops.c (_initialize_valops, show_overload_resolution): Ditto.
* utils.c (initialize_utils, show_chars_per_line)
(show_lines_per_page, show_demangle, show_pagination_enabled)
(show_sevenbit_strings, show_asm_demangle): Ditto
* tui/tui-win.c (_initialize_tui_win, show_tui_border_kind)
(show_tui_border_mode, show_tui_active_border_mode): Ditto.
* top.c (init_main, show_new_async_prompt)
(show_async_command_editing_p, show_write_history_p)
(show_history_size, show_history_filename, show_caution)
(show_annotation_level, init_main): Ditto.
* target.c (initialize_targets, show_targetdebug)
(show_trust_readonly): Ditto.
* symfile.c (_initialize_symfile, show_symbol_reloading)
(show_ext_args, show_download_write_size)
(show_debug_file_directory): Ditto.
* source.c (_initialize_source, show_lines_to_list): Ditto.
* solib.c (_initialize_solib, show_auto_solib_add)
(show_solib_search_path): Ditto.
* p-valprint.c (_initialize_pascal_valprint)
(show_pascal_static_field_print): Ditto.
* printcmd.c (_initialize_printcmd, show_max_symbolic_offset)
(show_print_symbol_filename): Add and update.
* parse.c (_initialize_parse, show_expressiondebug): Dito.
* observer.c (_initialize_observer, show_observer_debug): Dito.
* maint.c (_initialize_maint_cmds, show_watchdog)
(show_maintenance_profile_p): Dito.
* linux-nat.c (_initialize_linux_nat, show_debug_linux_nat): Dito.
* infrun.c (_initialize_infrun, show_debug_infrun)
(show_stop_on_solib_events, show_follow_fork_mode_string)
(show_scheduler_mode, show_step_stop_if_no_debug): Ditto.
* infcall.c (_initialize_infcall, show_coerce_float_to_double_p)
(show_unwind_on_signal_p): Ditto.
* gdbtypes.c (build_gdbtypes, show_opaque_type_resolution)
(_initialize_gdbtypes, show_overload_debug): Ditto.
* gdb-events.c, gdb-events.sh (_initialize_gdb_events)
(show_gdb_events_debug): Ditto.
* gdbarch.c, gdbarch.sh (show_gdbarch_debug)
(_initialize_gdbarch): Ditto.
* frame.c (_initialize_frame, show_backtrace_past_main)
(show_backtrace_past_entry, show_backtrace_limit)
(show_frame_debug): Ditto.
* exec.c (_initialize_exec, show_write_files): Ditto.
* dwarf2read.c (_initialize_dwarf2_read)
(show_dwarf2_max_cache_age): Ditto.
* demangle.c (_initialize_demangler)
(show_demangling_style_names): Ditto.
* dcache.c (_initialize_dcache, show_dcache_enabled_p): Ditto.
* cp-valprint.c (show_static_field_print)
(_initialize_cp_valprint, show_vtblprint, show_objectprint): Ditto.
* corefile.c (_initialize_core, show_gnutarget_string): Ditto.
* cli/cli-logging.c (_initialize_cli_logging)
(show_logging_overwrite, show_logging_redirect)
(show_logging_filename): Ditto.
* cli/cli-cmds.c (show_info_verbose, show_history_expansion_p)
(init_cli_cmds, show_baud_rate, show_remote_debug)
(show_remote_timeout, show_max_user_call_depth): Ditto.
* charset.c (show_host_charset_name, show_target_charset_name)
(initialize_charset): Ditto.
* breakpoint.c (show_can_use_hw_watchpoints)
(show_pending_break_support, _initialize_breakpoint): Ditto.
2005-02-24 21:51:36 +08:00
|
|
|
static void
|
|
|
|
|
show_dcache_enabled_p (struct ui_file *file, int from_tty,
|
|
|
|
|
struct cmd_list_element *c, const char *value)
|
|
|
|
|
{
|
2009-09-01 04:18:46 +08:00
|
|
|
fprintf_filtered (file, _("Deprecated remotecache flag is %s.\n"), value);
|
2005-02-24 Andrew Cagney <cagney@gnu.org>
Add show_VARIABLE functions, update add_setshow call.
* varobj.c (_initialize_varobj, show_varobjdebug): Add and update.
* valprint.c (_initialize_valprint, show_print_max)
(show_stop_print_at_null, show_repeat_count_threshold)
(show_prettyprint_structs, show_unionprint)
(show_prettyprint_arrays, show_addressprint, show_input_radix)
(show_output_radix): Ditto.
* valops.c (_initialize_valops, show_overload_resolution): Ditto.
* utils.c (initialize_utils, show_chars_per_line)
(show_lines_per_page, show_demangle, show_pagination_enabled)
(show_sevenbit_strings, show_asm_demangle): Ditto
* tui/tui-win.c (_initialize_tui_win, show_tui_border_kind)
(show_tui_border_mode, show_tui_active_border_mode): Ditto.
* top.c (init_main, show_new_async_prompt)
(show_async_command_editing_p, show_write_history_p)
(show_history_size, show_history_filename, show_caution)
(show_annotation_level, init_main): Ditto.
* target.c (initialize_targets, show_targetdebug)
(show_trust_readonly): Ditto.
* symfile.c (_initialize_symfile, show_symbol_reloading)
(show_ext_args, show_download_write_size)
(show_debug_file_directory): Ditto.
* source.c (_initialize_source, show_lines_to_list): Ditto.
* solib.c (_initialize_solib, show_auto_solib_add)
(show_solib_search_path): Ditto.
* p-valprint.c (_initialize_pascal_valprint)
(show_pascal_static_field_print): Ditto.
* printcmd.c (_initialize_printcmd, show_max_symbolic_offset)
(show_print_symbol_filename): Add and update.
* parse.c (_initialize_parse, show_expressiondebug): Dito.
* observer.c (_initialize_observer, show_observer_debug): Dito.
* maint.c (_initialize_maint_cmds, show_watchdog)
(show_maintenance_profile_p): Dito.
* linux-nat.c (_initialize_linux_nat, show_debug_linux_nat): Dito.
* infrun.c (_initialize_infrun, show_debug_infrun)
(show_stop_on_solib_events, show_follow_fork_mode_string)
(show_scheduler_mode, show_step_stop_if_no_debug): Ditto.
* infcall.c (_initialize_infcall, show_coerce_float_to_double_p)
(show_unwind_on_signal_p): Ditto.
* gdbtypes.c (build_gdbtypes, show_opaque_type_resolution)
(_initialize_gdbtypes, show_overload_debug): Ditto.
* gdb-events.c, gdb-events.sh (_initialize_gdb_events)
(show_gdb_events_debug): Ditto.
* gdbarch.c, gdbarch.sh (show_gdbarch_debug)
(_initialize_gdbarch): Ditto.
* frame.c (_initialize_frame, show_backtrace_past_main)
(show_backtrace_past_entry, show_backtrace_limit)
(show_frame_debug): Ditto.
* exec.c (_initialize_exec, show_write_files): Ditto.
* dwarf2read.c (_initialize_dwarf2_read)
(show_dwarf2_max_cache_age): Ditto.
* demangle.c (_initialize_demangler)
(show_demangling_style_names): Ditto.
* dcache.c (_initialize_dcache, show_dcache_enabled_p): Ditto.
* cp-valprint.c (show_static_field_print)
(_initialize_cp_valprint, show_vtblprint, show_objectprint): Ditto.
* corefile.c (_initialize_core, show_gnutarget_string): Ditto.
* cli/cli-logging.c (_initialize_cli_logging)
(show_logging_overwrite, show_logging_redirect)
(show_logging_filename): Ditto.
* cli/cli-cmds.c (show_info_verbose, show_history_expansion_p)
(init_cli_cmds, show_baud_rate, show_remote_debug)
(show_remote_timeout, show_max_user_call_depth): Ditto.
* charset.c (show_host_charset_name, show_target_charset_name)
(initialize_charset): Ditto.
* breakpoint.c (show_can_use_hw_watchpoints)
(show_pending_break_support, _initialize_breakpoint): Ditto.
2005-02-24 21:51:36 +08:00
|
|
|
}
|
|
|
|
|
|
2009-11-14 02:51:08 +08:00
|
|
|
/* Add BLOCK to circular block list BLIST, behind the block at *BLIST.
|
|
|
|
|
*BLIST is not updated (unless it was previously NULL of course).
|
|
|
|
|
This is for the least-recently-allocated list's sake:
|
|
|
|
|
BLIST points to the oldest block.
|
|
|
|
|
??? This makes for poor cache usage of the free list,
|
|
|
|
|
but is it measurable? */
|
1999-04-16 09:35:26 +08:00
|
|
|
|
2009-11-14 02:51:08 +08:00
|
|
|
static void
|
|
|
|
|
append_block (struct dcache_block **blist, struct dcache_block *block)
|
1999-04-16 09:35:26 +08:00
|
|
|
{
|
2009-11-14 02:51:08 +08:00
|
|
|
if (*blist)
|
|
|
|
|
{
|
|
|
|
|
block->next = *blist;
|
|
|
|
|
block->prev = (*blist)->prev;
|
|
|
|
|
block->prev->next = block;
|
|
|
|
|
(*blist)->prev = block;
|
|
|
|
|
/* We don't update *BLIST here to maintain the invariant that for the
|
|
|
|
|
least-recently-allocated list *BLIST points to the oldest block. */
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
block->next = block;
|
|
|
|
|
block->prev = block;
|
|
|
|
|
*blist = block;
|
|
|
|
|
}
|
|
|
|
|
}
|
1999-04-16 09:35:26 +08:00
|
|
|
|
2009-11-14 02:51:08 +08:00
|
|
|
/* Remove BLOCK from circular block list BLIST. */
|
1999-04-16 09:35:26 +08:00
|
|
|
|
2009-11-14 02:51:08 +08:00
|
|
|
static void
|
|
|
|
|
remove_block (struct dcache_block **blist, struct dcache_block *block)
|
|
|
|
|
{
|
|
|
|
|
if (block->next == block)
|
|
|
|
|
{
|
|
|
|
|
*blist = NULL;
|
|
|
|
|
}
|
|
|
|
|
else
|
1999-04-16 09:35:26 +08:00
|
|
|
{
|
2009-11-14 02:51:08 +08:00
|
|
|
block->next->prev = block->prev;
|
|
|
|
|
block->prev->next = block->next;
|
|
|
|
|
/* If we removed the block *BLIST points to, shift it to the next block
|
|
|
|
|
to maintain the invariant that for the least-recently-allocated list
|
|
|
|
|
*BLIST points to the oldest block. */
|
|
|
|
|
if (*blist == block)
|
|
|
|
|
*blist = block->next;
|
|
|
|
|
}
|
|
|
|
|
}
|
1999-04-16 09:35:26 +08:00
|
|
|
|
2009-11-14 02:51:08 +08:00
|
|
|
/* Iterate over all elements in BLIST, calling FUNC.
|
|
|
|
|
PARAM is passed to FUNC.
|
|
|
|
|
FUNC may remove the block it's passed, but only that block. */
|
2009-08-21 06:30:12 +08:00
|
|
|
|
2009-11-14 02:51:08 +08:00
|
|
|
static void
|
|
|
|
|
for_each_block (struct dcache_block **blist, block_func *func, void *param)
|
|
|
|
|
{
|
|
|
|
|
struct dcache_block *db;
|
|
|
|
|
|
|
|
|
|
if (*blist == NULL)
|
|
|
|
|
return;
|
|
|
|
|
|
|
|
|
|
db = *blist;
|
|
|
|
|
do
|
|
|
|
|
{
|
|
|
|
|
struct dcache_block *next = db->next;
|
|
|
|
|
|
|
|
|
|
func (db, param);
|
|
|
|
|
db = next;
|
1999-04-16 09:35:26 +08:00
|
|
|
}
|
2009-11-14 02:51:08 +08:00
|
|
|
while (*blist && db != *blist);
|
|
|
|
|
}
|
|
|
|
|
|
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* NEWS: Mention dcache configuration.
* dcache.c (dcache_set_list, dcache_show_list): New variables.
(dcache_size, dcache_line_size): New variables.
(LINE_SIZE_MASK, XFORM, MASK): Adjust.
(struct dcache_block): Make it expandable.
(struct dcache_struct): New field.
(dcache_invalidate): Discard freelist upon dcache_line_size changes.
(dcache_hit, dcache_alloc, dcache_peek_byte): Adjust.
(dcache_poke_byte, dcache_print_line): Adjust.
(set_dcache_size, set_dcache_line_size): New functions.
(set_dcache_command, show_dcache_command): New functions.
(_initialize_dcache): Add new commands.
doc/ChangeLog:
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* gdb.texinfo (Caching Remote Data): Document {set,show} dcache
size and line-size.
2011-07-26 23:24:02 +08:00
|
|
|
/* BLOCK_FUNC routine for dcache_free. */
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
free_block (struct dcache_block *block, void *param)
|
|
|
|
|
{
|
|
|
|
|
xfree (block);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Free a data cache. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
dcache_free (DCACHE *dcache)
|
|
|
|
|
{
|
|
|
|
|
splay_tree_delete (dcache->tree);
|
|
|
|
|
for_each_block (&dcache->oldest, free_block, NULL);
|
|
|
|
|
for_each_block (&dcache->freelist, free_block, NULL);
|
|
|
|
|
xfree (dcache);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
2009-11-14 02:51:08 +08:00
|
|
|
/* BLOCK_FUNC function for dcache_invalidate.
|
|
|
|
|
This doesn't remove the block from the oldest list on purpose.
|
|
|
|
|
dcache_invalidate will do it later. */
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
invalidate_block (struct dcache_block *block, void *param)
|
|
|
|
|
{
|
|
|
|
|
DCACHE *dcache = (DCACHE *) param;
|
|
|
|
|
|
|
|
|
|
splay_tree_remove (dcache->tree, (splay_tree_key) block->addr);
|
|
|
|
|
append_block (&dcache->freelist, block);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Free all the data cache blocks, thus discarding all cached data. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
dcache_invalidate (DCACHE *dcache)
|
|
|
|
|
{
|
|
|
|
|
for_each_block (&dcache->oldest, invalidate_block, dcache);
|
1999-04-16 09:35:26 +08:00
|
|
|
|
2009-08-21 06:30:12 +08:00
|
|
|
dcache->oldest = NULL;
|
|
|
|
|
dcache->size = 0;
|
2009-09-01 04:18:46 +08:00
|
|
|
dcache->ptid = null_ptid;
|
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* NEWS: Mention dcache configuration.
* dcache.c (dcache_set_list, dcache_show_list): New variables.
(dcache_size, dcache_line_size): New variables.
(LINE_SIZE_MASK, XFORM, MASK): Adjust.
(struct dcache_block): Make it expandable.
(struct dcache_struct): New field.
(dcache_invalidate): Discard freelist upon dcache_line_size changes.
(dcache_hit, dcache_alloc, dcache_peek_byte): Adjust.
(dcache_poke_byte, dcache_print_line): Adjust.
(set_dcache_size, set_dcache_line_size): New functions.
(set_dcache_command, show_dcache_command): New functions.
(_initialize_dcache): Add new commands.
doc/ChangeLog:
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* gdb.texinfo (Caching Remote Data): Document {set,show} dcache
size and line-size.
2011-07-26 23:24:02 +08:00
|
|
|
|
|
|
|
|
if (dcache->line_size != dcache_line_size)
|
|
|
|
|
{
|
|
|
|
|
/* We've been asked to use a different line size.
|
|
|
|
|
All of our freelist blocks are now the wrong size, so free them. */
|
|
|
|
|
|
|
|
|
|
for_each_block (&dcache->freelist, free_block, dcache);
|
|
|
|
|
dcache->freelist = NULL;
|
|
|
|
|
dcache->line_size = dcache_line_size;
|
|
|
|
|
}
|
2009-09-01 04:18:46 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Invalidate the line associated with ADDR. */
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
dcache_invalidate_line (DCACHE *dcache, CORE_ADDR addr)
|
|
|
|
|
{
|
|
|
|
|
struct dcache_block *db = dcache_hit (dcache, addr);
|
|
|
|
|
|
|
|
|
|
if (db)
|
|
|
|
|
{
|
|
|
|
|
splay_tree_remove (dcache->tree, (splay_tree_key) db->addr);
|
2009-11-14 02:51:08 +08:00
|
|
|
remove_block (&dcache->oldest, db);
|
|
|
|
|
append_block (&dcache->freelist, db);
|
2009-09-01 04:18:46 +08:00
|
|
|
--dcache->size;
|
|
|
|
|
}
|
1999-04-16 09:35:26 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* If addr is present in the dcache, return the address of the block
|
2009-11-14 07:26:19 +08:00
|
|
|
containing it. Otherwise return NULL. */
|
1999-04-16 09:35:26 +08:00
|
|
|
|
|
|
|
|
static struct dcache_block *
|
2000-07-30 09:48:28 +08:00
|
|
|
dcache_hit (DCACHE *dcache, CORE_ADDR addr)
|
1999-04-16 09:35:26 +08:00
|
|
|
{
|
2003-09-14 Andrew Cagney <cagney@redhat.com>
* alpha-nat.c: Remove some occurances of "register".
* alpha-tdep.c, arm-tdep.c, blockframe.c, breakpoint.c: Ditto.
* buildsym.c, c-typeprint.c, c-valprint.c, coffread.c: Ditto.
* corefile.c, cp-support.c, cp-valprint.c, cris-tdep.c: Ditto.
* dbxread.c, dcache.c, dwarf2read.c, elfread.c: Ditto.
* environ.c, eval.c, event-top.c, f-typeprint.c: Ditto.
* f-valprint.c, findvar.c, frame.c, gdbtypes.c: Ditto.
* h8300-tdep.c, hppa-tdep.c, hppab-nat.c, hppah-nat.c: Ditto.
* hppam3-nat.c, hpread.c, ia64-aix-nat.c, ia64-linux-nat.c: Ditto.
* infcall.c, infcmd.c, inflow.c, infptrace.c, infrun.c: Ditto.
* infttrace.c, irix5-nat.c, jv-typeprint.c: Ditto.
* jv-valprint.c, m68k-tdep.c, m68klinux-nat.c, main.c: Ditto.
* mdebugread.c, minsyms.c, mips-linux-tdep.c: Ditto.
* mips-nat.c, mips-tdep.c, mipsread.c, mipsv4-nat.c: Ditto.
* ns32k-tdep.c, objfiles.c, p-typeprint.c: Ditto.
* p-valprint.c, ppc-linux-nat.c, printcmd.c: Ditto.
* remote-mips.c, remote-vx.c, rs6000-nat.c: Ditto.
* rs6000-tdep.c, scm-exp.c, sh-tdep.c, sh64-tdep.c: Ditto.
* solib.c, somread.c, source.c, sparc-tdep.c: Ditto.
* stabsread.c, stack.c, standalone.c, symfile.c: Ditto.
* symmisc.c, symtab.c, top.c, tracepoint.c: Ditto.
* typeprint.c, utils.c, valarith.c, valops.c: Ditto.
* values.c, vax-tdep.c, xcoffread.c: Ditto.
2003-09-15 00:32:14 +08:00
|
|
|
struct dcache_block *db;
|
1999-04-16 09:35:26 +08:00
|
|
|
|
2009-08-21 06:30:12 +08:00
|
|
|
splay_tree_node node = splay_tree_lookup (dcache->tree,
|
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* NEWS: Mention dcache configuration.
* dcache.c (dcache_set_list, dcache_show_list): New variables.
(dcache_size, dcache_line_size): New variables.
(LINE_SIZE_MASK, XFORM, MASK): Adjust.
(struct dcache_block): Make it expandable.
(struct dcache_struct): New field.
(dcache_invalidate): Discard freelist upon dcache_line_size changes.
(dcache_hit, dcache_alloc, dcache_peek_byte): Adjust.
(dcache_poke_byte, dcache_print_line): Adjust.
(set_dcache_size, set_dcache_line_size): New functions.
(set_dcache_command, show_dcache_command): New functions.
(_initialize_dcache): Add new commands.
doc/ChangeLog:
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* gdb.texinfo (Caching Remote Data): Document {set,show} dcache
size and line-size.
2011-07-26 23:24:02 +08:00
|
|
|
(splay_tree_key) MASK (dcache, addr));
|
1999-04-16 09:35:26 +08:00
|
|
|
|
2009-08-21 06:30:12 +08:00
|
|
|
if (!node)
|
|
|
|
|
return NULL;
|
1999-04-16 09:35:26 +08:00
|
|
|
|
2009-08-21 06:30:12 +08:00
|
|
|
db = (struct dcache_block *) node->value;
|
|
|
|
|
db->refs++;
|
|
|
|
|
return db;
|
1999-04-16 09:35:26 +08:00
|
|
|
}
|
|
|
|
|
|
2009-11-14 07:26:19 +08:00
|
|
|
/* Fill a cache line from target memory.
|
|
|
|
|
The result is 1 for success, 0 if the (entire) cache line
|
|
|
|
|
wasn't readable. */
|
1999-04-16 09:35:26 +08:00
|
|
|
|
2000-09-01 08:12:10 +08:00
|
|
|
static int
|
|
|
|
|
dcache_read_line (DCACHE *dcache, struct dcache_block *db)
|
|
|
|
|
{
|
|
|
|
|
CORE_ADDR memaddr;
|
2005-05-24 03:32:28 +08:00
|
|
|
gdb_byte *myaddr;
|
2000-09-01 08:12:10 +08:00
|
|
|
int len;
|
|
|
|
|
int res;
|
* exec.c (xfer_memory): Add attrib argument.
* infptrace.c (child_xfer_memory): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
* remote-adapt.c (adapt_xfer_inferior_memory): Likewise.
* remote-array.c (array_xfer_memory): Likewise.
* remote-bug.c (bug_xfer_memory): Likewise.
* remote-e7000.c (e7000_xfer_inferior_memory): Likewise.
* remote-eb.c (eb_xfer_inferior_memory): Likewise.
* remote-es.c (es1800_xfer_inferior_memory): Likewise.
* remote-mips.c (mips_xfer_memory): Likewise.
* remote-mm.c (mm_xfer_inferior_memory): Likewise.
* remote-nindy.c (nindy_xfer_inferior_memory): Likewise.
* remote-os9k.c (rombug_xfer_inferior_memory): Likewise.
* remote-rdi.c (arm_rdi_xfer_memory): Likewise.
* remote-rdp.c (remote_rdp_xfer_inferior_memory): Likewise.
* remote-sds.c (sds_xfer_memory): Likewise.
* remote-sim.c (gdbsim_xfer_inferior_memory): Likewise.
* remote-st.c (st2000_xfer_inferior_memory): Likewise.
* remote-udi.c (udi_xfer_inferior_memory): Likewise.
* remote-vx.c (vx_xfer_memory): Likewise.
* remote.c (remote_xfer_memory): Likewise.
* target.c (debug_to_xfer_memory, do_xfer_memory): Likewise.
* target.h (child_xfer_memory, do_xfer_memory, xfer_memory): Likewise.
* target.h (#include "memattr.h"): Added.
(target_ops.to_xfer_memory): Add attrib argument.
* wince.c (_initialize_inftarg): Removed call to set_dcache_state.
* dcache.h (set_dcache_state): Removed declaration.
* dcache.c (set_dcache_state): Removed definition
* dcache.c: Update module comment, as dcache is now enabled and
disabled with memory region attributes instead of by the global
variable "remotecache". Add comment describing the interaction
between dcache and memory region attributes.
(dcache_xfer_memory): Add comment describing benefits of moving
cache writeback to a higher level.
(dcache_struct): Removed cache_has_stuff field. This was used to
record whether the cache had been accessed in order to invalidate
it when it was disabled. However, this is not needed because the
cache is write through and the code that enables, disables, and
deletes memory regions invalidate the cache. Add comment which
suggests that we could be more selective and only invalidate those
cache lines containing data from those memory regions.
(dcache_invalidate): Updated.
(dcache_xfer_memory): Updated.
(dcache_alloc): Don't abort() if dcache_enabled_p is clear.
(dcache_xfer_memory): Removed code that called do_xfer_memory() to
perform a uncached transfer if dcache_enabled_p was clear. This
function is now only called if caching is enabled for the memory
region.
(dcache_info): Always print cache info.
* target.c (do_xfer_memory): Add attrib argument.
(target_xfer_memory, target_xfer_memory_partial): Break transfer
into chunks defined by memory regions, pass region attributes to
do_xfer_memory().
* dcache.c (dcache_read_line, dcache_write_line): Likewise.
* Makefile.in (SFILES): Add memattr.c.
(COMMON_OBS): Add memattr.o.
(dcache.o): Add target.h to dependencies.
* memattr.c: New file.
* memattr.h: Likewise.
2001-01-24 06:48:56 +08:00
|
|
|
int reg_len;
|
|
|
|
|
struct mem_region *region;
|
2000-09-01 08:12:10 +08:00
|
|
|
|
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* NEWS: Mention dcache configuration.
* dcache.c (dcache_set_list, dcache_show_list): New variables.
(dcache_size, dcache_line_size): New variables.
(LINE_SIZE_MASK, XFORM, MASK): Adjust.
(struct dcache_block): Make it expandable.
(struct dcache_struct): New field.
(dcache_invalidate): Discard freelist upon dcache_line_size changes.
(dcache_hit, dcache_alloc, dcache_peek_byte): Adjust.
(dcache_poke_byte, dcache_print_line): Adjust.
(set_dcache_size, set_dcache_line_size): New functions.
(set_dcache_command, show_dcache_command): New functions.
(_initialize_dcache): Add new commands.
doc/ChangeLog:
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* gdb.texinfo (Caching Remote Data): Document {set,show} dcache
size and line-size.
2011-07-26 23:24:02 +08:00
|
|
|
len = dcache->line_size;
|
2000-09-01 08:12:10 +08:00
|
|
|
memaddr = db->addr;
|
|
|
|
|
myaddr = db->data;
|
|
|
|
|
|
|
|
|
|
while (len > 0)
|
|
|
|
|
{
|
2009-08-21 06:30:12 +08:00
|
|
|
/* Don't overrun if this block is right at the end of the region. */
|
|
|
|
|
region = lookup_mem_region (memaddr);
|
|
|
|
|
if (region->hi == 0 || memaddr + len < region->hi)
|
* exec.c (xfer_memory): Add attrib argument.
* infptrace.c (child_xfer_memory): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
* remote-adapt.c (adapt_xfer_inferior_memory): Likewise.
* remote-array.c (array_xfer_memory): Likewise.
* remote-bug.c (bug_xfer_memory): Likewise.
* remote-e7000.c (e7000_xfer_inferior_memory): Likewise.
* remote-eb.c (eb_xfer_inferior_memory): Likewise.
* remote-es.c (es1800_xfer_inferior_memory): Likewise.
* remote-mips.c (mips_xfer_memory): Likewise.
* remote-mm.c (mm_xfer_inferior_memory): Likewise.
* remote-nindy.c (nindy_xfer_inferior_memory): Likewise.
* remote-os9k.c (rombug_xfer_inferior_memory): Likewise.
* remote-rdi.c (arm_rdi_xfer_memory): Likewise.
* remote-rdp.c (remote_rdp_xfer_inferior_memory): Likewise.
* remote-sds.c (sds_xfer_memory): Likewise.
* remote-sim.c (gdbsim_xfer_inferior_memory): Likewise.
* remote-st.c (st2000_xfer_inferior_memory): Likewise.
* remote-udi.c (udi_xfer_inferior_memory): Likewise.
* remote-vx.c (vx_xfer_memory): Likewise.
* remote.c (remote_xfer_memory): Likewise.
* target.c (debug_to_xfer_memory, do_xfer_memory): Likewise.
* target.h (child_xfer_memory, do_xfer_memory, xfer_memory): Likewise.
* target.h (#include "memattr.h"): Added.
(target_ops.to_xfer_memory): Add attrib argument.
* wince.c (_initialize_inftarg): Removed call to set_dcache_state.
* dcache.h (set_dcache_state): Removed declaration.
* dcache.c (set_dcache_state): Removed definition
* dcache.c: Update module comment, as dcache is now enabled and
disabled with memory region attributes instead of by the global
variable "remotecache". Add comment describing the interaction
between dcache and memory region attributes.
(dcache_xfer_memory): Add comment describing benefits of moving
cache writeback to a higher level.
(dcache_struct): Removed cache_has_stuff field. This was used to
record whether the cache had been accessed in order to invalidate
it when it was disabled. However, this is not needed because the
cache is write through and the code that enables, disables, and
deletes memory regions invalidate the cache. Add comment which
suggests that we could be more selective and only invalidate those
cache lines containing data from those memory regions.
(dcache_invalidate): Updated.
(dcache_xfer_memory): Updated.
(dcache_alloc): Don't abort() if dcache_enabled_p is clear.
(dcache_xfer_memory): Removed code that called do_xfer_memory() to
perform a uncached transfer if dcache_enabled_p was clear. This
function is now only called if caching is enabled for the memory
region.
(dcache_info): Always print cache info.
* target.c (do_xfer_memory): Add attrib argument.
(target_xfer_memory, target_xfer_memory_partial): Break transfer
into chunks defined by memory regions, pass region attributes to
do_xfer_memory().
* dcache.c (dcache_read_line, dcache_write_line): Likewise.
* Makefile.in (SFILES): Add memattr.c.
(COMMON_OBS): Add memattr.o.
(dcache.o): Add target.h to dependencies.
* memattr.c: New file.
* memattr.h: Likewise.
2001-01-24 06:48:56 +08:00
|
|
|
reg_len = len;
|
|
|
|
|
else
|
|
|
|
|
reg_len = region->hi - memaddr;
|
|
|
|
|
|
2009-09-01 04:18:46 +08:00
|
|
|
/* Skip non-readable regions. The cache attribute can be ignored,
|
|
|
|
|
since we may be loading this for a stack access. */
|
|
|
|
|
if (region->attrib.mode == MEM_WO)
|
* exec.c (xfer_memory): Add attrib argument.
* infptrace.c (child_xfer_memory): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
* remote-adapt.c (adapt_xfer_inferior_memory): Likewise.
* remote-array.c (array_xfer_memory): Likewise.
* remote-bug.c (bug_xfer_memory): Likewise.
* remote-e7000.c (e7000_xfer_inferior_memory): Likewise.
* remote-eb.c (eb_xfer_inferior_memory): Likewise.
* remote-es.c (es1800_xfer_inferior_memory): Likewise.
* remote-mips.c (mips_xfer_memory): Likewise.
* remote-mm.c (mm_xfer_inferior_memory): Likewise.
* remote-nindy.c (nindy_xfer_inferior_memory): Likewise.
* remote-os9k.c (rombug_xfer_inferior_memory): Likewise.
* remote-rdi.c (arm_rdi_xfer_memory): Likewise.
* remote-rdp.c (remote_rdp_xfer_inferior_memory): Likewise.
* remote-sds.c (sds_xfer_memory): Likewise.
* remote-sim.c (gdbsim_xfer_inferior_memory): Likewise.
* remote-st.c (st2000_xfer_inferior_memory): Likewise.
* remote-udi.c (udi_xfer_inferior_memory): Likewise.
* remote-vx.c (vx_xfer_memory): Likewise.
* remote.c (remote_xfer_memory): Likewise.
* target.c (debug_to_xfer_memory, do_xfer_memory): Likewise.
* target.h (child_xfer_memory, do_xfer_memory, xfer_memory): Likewise.
* target.h (#include "memattr.h"): Added.
(target_ops.to_xfer_memory): Add attrib argument.
* wince.c (_initialize_inftarg): Removed call to set_dcache_state.
* dcache.h (set_dcache_state): Removed declaration.
* dcache.c (set_dcache_state): Removed definition
* dcache.c: Update module comment, as dcache is now enabled and
disabled with memory region attributes instead of by the global
variable "remotecache". Add comment describing the interaction
between dcache and memory region attributes.
(dcache_xfer_memory): Add comment describing benefits of moving
cache writeback to a higher level.
(dcache_struct): Removed cache_has_stuff field. This was used to
record whether the cache had been accessed in order to invalidate
it when it was disabled. However, this is not needed because the
cache is write through and the code that enables, disables, and
deletes memory regions invalidate the cache. Add comment which
suggests that we could be more selective and only invalidate those
cache lines containing data from those memory regions.
(dcache_invalidate): Updated.
(dcache_xfer_memory): Updated.
(dcache_alloc): Don't abort() if dcache_enabled_p is clear.
(dcache_xfer_memory): Removed code that called do_xfer_memory() to
perform a uncached transfer if dcache_enabled_p was clear. This
function is now only called if caching is enabled for the memory
region.
(dcache_info): Always print cache info.
* target.c (do_xfer_memory): Add attrib argument.
(target_xfer_memory, target_xfer_memory_partial): Break transfer
into chunks defined by memory regions, pass region attributes to
do_xfer_memory().
* dcache.c (dcache_read_line, dcache_write_line): Likewise.
* Makefile.in (SFILES): Add memattr.c.
(COMMON_OBS): Add memattr.o.
(dcache.o): Add target.h to dependencies.
* memattr.c: New file.
* memattr.h: Likewise.
2001-01-24 06:48:56 +08:00
|
|
|
{
|
|
|
|
|
memaddr += reg_len;
|
|
|
|
|
myaddr += reg_len;
|
|
|
|
|
len -= reg_len;
|
|
|
|
|
continue;
|
|
|
|
|
}
|
Delegate to target_ops->beneath for TARGET_OBJECT_RAW_MEMORY
GDB on x86_64-linux is unable to disassemble on core-file target.
$ ./gdb ./testsuite/gdb.base/corefile
(gdb) core-file ./testsuite/gdb.base/corefile.core
(gdb) disassemble main
Dump of assembler code for function main:
0x0000000000400976 <+0>: Cannot access memory at address 0x400976
However, it works if we turn code-cache off.
(gdb) set code-cache off
(gdb) disassemble main,+4
Dump of assembler code from 0x400976 to 0x40097a:
0x0000000000400976 <main+0>: push %rbp
0x0000000000400977 <main+1>: mov %rsp,%rbp
End of assembler dump.
When code-cache is off, GDB will iterate target_ops from top to bottom
and call to_xfer_partial. When current_target is "core", it will call
to_xfer_partial of target "exec", which reads the contents for
disassemble. However, dcache uses TARGET_OBJECT_RAW_MEMORY to read,
but target_xfer_partial doesn't delegate requests to beneath for
TARGET_OBJECT_RAW_MEMORY.
This patch factors out the iteration from top to bottom to a new
function, raw_memory_xfer_partial, and use it for
TARGET_OBJECT_RAW_MEMORY.
Regression tested on x86_64-linux.
gdb:
2013-11-29 Yao Qi <yao@codesourcery.com>
Pedro Alves <palves@redhat.com>
* dcache.c (dcache_read_line): Use current_target.beneath
instead of ¤t_target.
* target.c (memory_xfer_partial_1): Factor code out to ...
(raw_memory_xfer_partial): ... it. New function.
(target_xfer_partial): Call raw_memory_xfer_partial if OBJECT
is TARGET_OBJECT_RAW_MEMORY.
2013-11-27 18:01:05 +08:00
|
|
|
|
|
|
|
|
res = target_read (current_target.beneath, TARGET_OBJECT_RAW_MEMORY,
|
2006-08-16 02:46:25 +08:00
|
|
|
NULL, myaddr, memaddr, reg_len);
|
|
|
|
|
if (res < reg_len)
|
|
|
|
|
return 0;
|
2000-09-01 08:12:10 +08:00
|
|
|
|
2006-08-16 02:46:25 +08:00
|
|
|
memaddr += res;
|
|
|
|
|
myaddr += res;
|
|
|
|
|
len -= res;
|
2000-09-01 08:12:10 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
|
1999-04-16 09:35:26 +08:00
|
|
|
/* Get a free cache block, put or keep it on the valid list,
|
2000-08-11 02:54:27 +08:00
|
|
|
and return its address. */
|
1999-04-16 09:35:26 +08:00
|
|
|
|
|
|
|
|
static struct dcache_block *
|
2000-08-11 02:54:27 +08:00
|
|
|
dcache_alloc (DCACHE *dcache, CORE_ADDR addr)
|
1999-04-16 09:35:26 +08:00
|
|
|
{
|
2003-09-14 Andrew Cagney <cagney@redhat.com>
* alpha-nat.c: Remove some occurances of "register".
* alpha-tdep.c, arm-tdep.c, blockframe.c, breakpoint.c: Ditto.
* buildsym.c, c-typeprint.c, c-valprint.c, coffread.c: Ditto.
* corefile.c, cp-support.c, cp-valprint.c, cris-tdep.c: Ditto.
* dbxread.c, dcache.c, dwarf2read.c, elfread.c: Ditto.
* environ.c, eval.c, event-top.c, f-typeprint.c: Ditto.
* f-valprint.c, findvar.c, frame.c, gdbtypes.c: Ditto.
* h8300-tdep.c, hppa-tdep.c, hppab-nat.c, hppah-nat.c: Ditto.
* hppam3-nat.c, hpread.c, ia64-aix-nat.c, ia64-linux-nat.c: Ditto.
* infcall.c, infcmd.c, inflow.c, infptrace.c, infrun.c: Ditto.
* infttrace.c, irix5-nat.c, jv-typeprint.c: Ditto.
* jv-valprint.c, m68k-tdep.c, m68klinux-nat.c, main.c: Ditto.
* mdebugread.c, minsyms.c, mips-linux-tdep.c: Ditto.
* mips-nat.c, mips-tdep.c, mipsread.c, mipsv4-nat.c: Ditto.
* ns32k-tdep.c, objfiles.c, p-typeprint.c: Ditto.
* p-valprint.c, ppc-linux-nat.c, printcmd.c: Ditto.
* remote-mips.c, remote-vx.c, rs6000-nat.c: Ditto.
* rs6000-tdep.c, scm-exp.c, sh-tdep.c, sh64-tdep.c: Ditto.
* solib.c, somread.c, source.c, sparc-tdep.c: Ditto.
* stabsread.c, stack.c, standalone.c, symfile.c: Ditto.
* symmisc.c, symtab.c, top.c, tracepoint.c: Ditto.
* typeprint.c, utils.c, valarith.c, valops.c: Ditto.
* values.c, vax-tdep.c, xcoffread.c: Ditto.
2003-09-15 00:32:14 +08:00
|
|
|
struct dcache_block *db;
|
1999-04-16 09:35:26 +08:00
|
|
|
|
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* NEWS: Mention dcache configuration.
* dcache.c (dcache_set_list, dcache_show_list): New variables.
(dcache_size, dcache_line_size): New variables.
(LINE_SIZE_MASK, XFORM, MASK): Adjust.
(struct dcache_block): Make it expandable.
(struct dcache_struct): New field.
(dcache_invalidate): Discard freelist upon dcache_line_size changes.
(dcache_hit, dcache_alloc, dcache_peek_byte): Adjust.
(dcache_poke_byte, dcache_print_line): Adjust.
(set_dcache_size, set_dcache_line_size): New functions.
(set_dcache_command, show_dcache_command): New functions.
(_initialize_dcache): Add new commands.
doc/ChangeLog:
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* gdb.texinfo (Caching Remote Data): Document {set,show} dcache
size and line-size.
2011-07-26 23:24:02 +08:00
|
|
|
if (dcache->size >= dcache_size)
|
1999-04-16 09:35:26 +08:00
|
|
|
{
|
2009-11-14 02:51:08 +08:00
|
|
|
/* Evict the least recently allocated line. */
|
2009-08-21 06:30:12 +08:00
|
|
|
db = dcache->oldest;
|
2009-11-14 02:51:08 +08:00
|
|
|
remove_block (&dcache->oldest, db);
|
2009-08-21 06:30:12 +08:00
|
|
|
|
|
|
|
|
splay_tree_remove (dcache->tree, (splay_tree_key) db->addr);
|
1999-04-16 09:35:26 +08:00
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
2009-08-21 06:30:12 +08:00
|
|
|
db = dcache->freelist;
|
|
|
|
|
if (db)
|
2009-11-14 02:51:08 +08:00
|
|
|
remove_block (&dcache->freelist, db);
|
2009-08-21 06:30:12 +08:00
|
|
|
else
|
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* NEWS: Mention dcache configuration.
* dcache.c (dcache_set_list, dcache_show_list): New variables.
(dcache_size, dcache_line_size): New variables.
(LINE_SIZE_MASK, XFORM, MASK): Adjust.
(struct dcache_block): Make it expandable.
(struct dcache_struct): New field.
(dcache_invalidate): Discard freelist upon dcache_line_size changes.
(dcache_hit, dcache_alloc, dcache_peek_byte): Adjust.
(dcache_poke_byte, dcache_print_line): Adjust.
(set_dcache_size, set_dcache_line_size): New functions.
(set_dcache_command, show_dcache_command): New functions.
(_initialize_dcache): Add new commands.
doc/ChangeLog:
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* gdb.texinfo (Caching Remote Data): Document {set,show} dcache
size and line-size.
2011-07-26 23:24:02 +08:00
|
|
|
db = xmalloc (offsetof (struct dcache_block, data) +
|
|
|
|
|
dcache->line_size);
|
1999-04-16 09:35:26 +08:00
|
|
|
|
2009-08-21 06:30:12 +08:00
|
|
|
dcache->size++;
|
1999-04-16 09:35:26 +08:00
|
|
|
}
|
|
|
|
|
|
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* NEWS: Mention dcache configuration.
* dcache.c (dcache_set_list, dcache_show_list): New variables.
(dcache_size, dcache_line_size): New variables.
(LINE_SIZE_MASK, XFORM, MASK): Adjust.
(struct dcache_block): Make it expandable.
(struct dcache_struct): New field.
(dcache_invalidate): Discard freelist upon dcache_line_size changes.
(dcache_hit, dcache_alloc, dcache_peek_byte): Adjust.
(dcache_poke_byte, dcache_print_line): Adjust.
(set_dcache_size, set_dcache_line_size): New functions.
(set_dcache_command, show_dcache_command): New functions.
(_initialize_dcache): Add new commands.
doc/ChangeLog:
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* gdb.texinfo (Caching Remote Data): Document {set,show} dcache
size and line-size.
2011-07-26 23:24:02 +08:00
|
|
|
db->addr = MASK (dcache, addr);
|
2000-08-11 02:54:27 +08:00
|
|
|
db->refs = 0;
|
|
|
|
|
|
2009-11-14 02:51:08 +08:00
|
|
|
/* Put DB at the end of the list, it's the newest. */
|
|
|
|
|
append_block (&dcache->oldest, db);
|
1999-04-16 09:35:26 +08:00
|
|
|
|
2009-08-21 06:30:12 +08:00
|
|
|
splay_tree_insert (dcache->tree, (splay_tree_key) db->addr,
|
|
|
|
|
(splay_tree_value) db);
|
1999-04-16 09:35:26 +08:00
|
|
|
|
2009-08-21 06:30:12 +08:00
|
|
|
return db;
|
1999-04-16 09:35:26 +08:00
|
|
|
}
|
|
|
|
|
|
2009-11-14 07:26:19 +08:00
|
|
|
/* Using the data cache DCACHE, store in *PTR the contents of the byte at
|
2000-09-01 08:12:10 +08:00
|
|
|
address ADDR in the remote machine.
|
|
|
|
|
|
2009-08-21 06:30:12 +08:00
|
|
|
Returns 1 for success, 0 for error. */
|
2000-09-01 08:12:10 +08:00
|
|
|
|
|
|
|
|
static int
|
2005-05-24 03:32:28 +08:00
|
|
|
dcache_peek_byte (DCACHE *dcache, CORE_ADDR addr, gdb_byte *ptr)
|
2000-09-01 08:12:10 +08:00
|
|
|
{
|
2003-09-14 Andrew Cagney <cagney@redhat.com>
* alpha-nat.c: Remove some occurances of "register".
* alpha-tdep.c, arm-tdep.c, blockframe.c, breakpoint.c: Ditto.
* buildsym.c, c-typeprint.c, c-valprint.c, coffread.c: Ditto.
* corefile.c, cp-support.c, cp-valprint.c, cris-tdep.c: Ditto.
* dbxread.c, dcache.c, dwarf2read.c, elfread.c: Ditto.
* environ.c, eval.c, event-top.c, f-typeprint.c: Ditto.
* f-valprint.c, findvar.c, frame.c, gdbtypes.c: Ditto.
* h8300-tdep.c, hppa-tdep.c, hppab-nat.c, hppah-nat.c: Ditto.
* hppam3-nat.c, hpread.c, ia64-aix-nat.c, ia64-linux-nat.c: Ditto.
* infcall.c, infcmd.c, inflow.c, infptrace.c, infrun.c: Ditto.
* infttrace.c, irix5-nat.c, jv-typeprint.c: Ditto.
* jv-valprint.c, m68k-tdep.c, m68klinux-nat.c, main.c: Ditto.
* mdebugread.c, minsyms.c, mips-linux-tdep.c: Ditto.
* mips-nat.c, mips-tdep.c, mipsread.c, mipsv4-nat.c: Ditto.
* ns32k-tdep.c, objfiles.c, p-typeprint.c: Ditto.
* p-valprint.c, ppc-linux-nat.c, printcmd.c: Ditto.
* remote-mips.c, remote-vx.c, rs6000-nat.c: Ditto.
* rs6000-tdep.c, scm-exp.c, sh-tdep.c, sh64-tdep.c: Ditto.
* solib.c, somread.c, source.c, sparc-tdep.c: Ditto.
* stabsread.c, stack.c, standalone.c, symfile.c: Ditto.
* symmisc.c, symtab.c, top.c, tracepoint.c: Ditto.
* typeprint.c, utils.c, valarith.c, valops.c: Ditto.
* values.c, vax-tdep.c, xcoffread.c: Ditto.
2003-09-15 00:32:14 +08:00
|
|
|
struct dcache_block *db = dcache_hit (dcache, addr);
|
2000-09-01 08:12:10 +08:00
|
|
|
|
|
|
|
|
if (!db)
|
|
|
|
|
{
|
|
|
|
|
db = dcache_alloc (dcache, addr);
|
2009-08-21 06:30:12 +08:00
|
|
|
|
|
|
|
|
if (!dcache_read_line (dcache, db))
|
2000-09-01 08:12:10 +08:00
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* NEWS: Mention dcache configuration.
* dcache.c (dcache_set_list, dcache_show_list): New variables.
(dcache_size, dcache_line_size): New variables.
(LINE_SIZE_MASK, XFORM, MASK): Adjust.
(struct dcache_block): Make it expandable.
(struct dcache_struct): New field.
(dcache_invalidate): Discard freelist upon dcache_line_size changes.
(dcache_hit, dcache_alloc, dcache_peek_byte): Adjust.
(dcache_poke_byte, dcache_print_line): Adjust.
(set_dcache_size, set_dcache_line_size): New functions.
(set_dcache_command, show_dcache_command): New functions.
(_initialize_dcache): Add new commands.
doc/ChangeLog:
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* gdb.texinfo (Caching Remote Data): Document {set,show} dcache
size and line-size.
2011-07-26 23:24:02 +08:00
|
|
|
*ptr = db->data[XFORM (dcache, addr)];
|
2000-09-01 08:12:10 +08:00
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
|
1999-04-16 09:35:26 +08:00
|
|
|
/* Write the byte at PTR into ADDR in the data cache.
|
2009-08-21 06:30:12 +08:00
|
|
|
|
|
|
|
|
The caller is responsible for also promptly writing the data
|
|
|
|
|
through to target memory.
|
|
|
|
|
|
|
|
|
|
If addr is not in cache, this function does nothing; writing to
|
|
|
|
|
an area of memory which wasn't present in the cache doesn't cause
|
|
|
|
|
it to be loaded in.
|
|
|
|
|
|
2009-09-01 04:18:46 +08:00
|
|
|
Always return 1 (meaning success) to simplify dcache_xfer_memory. */
|
1999-04-16 09:35:26 +08:00
|
|
|
|
|
|
|
|
static int
|
2005-05-24 03:32:28 +08:00
|
|
|
dcache_poke_byte (DCACHE *dcache, CORE_ADDR addr, gdb_byte *ptr)
|
1999-04-16 09:35:26 +08:00
|
|
|
{
|
2003-09-14 Andrew Cagney <cagney@redhat.com>
* alpha-nat.c: Remove some occurances of "register".
* alpha-tdep.c, arm-tdep.c, blockframe.c, breakpoint.c: Ditto.
* buildsym.c, c-typeprint.c, c-valprint.c, coffread.c: Ditto.
* corefile.c, cp-support.c, cp-valprint.c, cris-tdep.c: Ditto.
* dbxread.c, dcache.c, dwarf2read.c, elfread.c: Ditto.
* environ.c, eval.c, event-top.c, f-typeprint.c: Ditto.
* f-valprint.c, findvar.c, frame.c, gdbtypes.c: Ditto.
* h8300-tdep.c, hppa-tdep.c, hppab-nat.c, hppah-nat.c: Ditto.
* hppam3-nat.c, hpread.c, ia64-aix-nat.c, ia64-linux-nat.c: Ditto.
* infcall.c, infcmd.c, inflow.c, infptrace.c, infrun.c: Ditto.
* infttrace.c, irix5-nat.c, jv-typeprint.c: Ditto.
* jv-valprint.c, m68k-tdep.c, m68klinux-nat.c, main.c: Ditto.
* mdebugread.c, minsyms.c, mips-linux-tdep.c: Ditto.
* mips-nat.c, mips-tdep.c, mipsread.c, mipsv4-nat.c: Ditto.
* ns32k-tdep.c, objfiles.c, p-typeprint.c: Ditto.
* p-valprint.c, ppc-linux-nat.c, printcmd.c: Ditto.
* remote-mips.c, remote-vx.c, rs6000-nat.c: Ditto.
* rs6000-tdep.c, scm-exp.c, sh-tdep.c, sh64-tdep.c: Ditto.
* solib.c, somread.c, source.c, sparc-tdep.c: Ditto.
* stabsread.c, stack.c, standalone.c, symfile.c: Ditto.
* symmisc.c, symtab.c, top.c, tracepoint.c: Ditto.
* typeprint.c, utils.c, valarith.c, valops.c: Ditto.
* values.c, vax-tdep.c, xcoffread.c: Ditto.
2003-09-15 00:32:14 +08:00
|
|
|
struct dcache_block *db = dcache_hit (dcache, addr);
|
1999-04-16 09:35:26 +08:00
|
|
|
|
2009-08-21 06:30:12 +08:00
|
|
|
if (db)
|
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* NEWS: Mention dcache configuration.
* dcache.c (dcache_set_list, dcache_show_list): New variables.
(dcache_size, dcache_line_size): New variables.
(LINE_SIZE_MASK, XFORM, MASK): Adjust.
(struct dcache_block): Make it expandable.
(struct dcache_struct): New field.
(dcache_invalidate): Discard freelist upon dcache_line_size changes.
(dcache_hit, dcache_alloc, dcache_peek_byte): Adjust.
(dcache_poke_byte, dcache_print_line): Adjust.
(set_dcache_size, set_dcache_line_size): New functions.
(set_dcache_command, show_dcache_command): New functions.
(_initialize_dcache): Add new commands.
doc/ChangeLog:
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* gdb.texinfo (Caching Remote Data): Document {set,show} dcache
size and line-size.
2011-07-26 23:24:02 +08:00
|
|
|
db->data[XFORM (dcache, addr)] = *ptr;
|
1999-04-16 09:35:26 +08:00
|
|
|
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
|
2009-08-21 06:30:12 +08:00
|
|
|
static int
|
|
|
|
|
dcache_splay_tree_compare (splay_tree_key a, splay_tree_key b)
|
|
|
|
|
{
|
|
|
|
|
if (a > b)
|
|
|
|
|
return 1;
|
|
|
|
|
else if (a == b)
|
|
|
|
|
return 0;
|
|
|
|
|
else
|
|
|
|
|
return -1;
|
|
|
|
|
}
|
|
|
|
|
|
2009-11-14 07:26:19 +08:00
|
|
|
/* Allocate and initialize a data cache. */
|
2009-08-21 06:30:12 +08:00
|
|
|
|
1999-04-16 09:35:26 +08:00
|
|
|
DCACHE *
|
2000-11-04 06:00:56 +08:00
|
|
|
dcache_init (void)
|
1999-04-16 09:35:26 +08:00
|
|
|
{
|
|
|
|
|
DCACHE *dcache;
|
|
|
|
|
|
|
|
|
|
dcache = (DCACHE *) xmalloc (sizeof (*dcache));
|
|
|
|
|
|
2009-08-21 06:30:12 +08:00
|
|
|
dcache->tree = splay_tree_new (dcache_splay_tree_compare,
|
|
|
|
|
NULL,
|
|
|
|
|
NULL);
|
1999-04-16 09:35:26 +08:00
|
|
|
|
2009-08-21 06:30:12 +08:00
|
|
|
dcache->oldest = NULL;
|
|
|
|
|
dcache->freelist = NULL;
|
|
|
|
|
dcache->size = 0;
|
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* NEWS: Mention dcache configuration.
* dcache.c (dcache_set_list, dcache_show_list): New variables.
(dcache_size, dcache_line_size): New variables.
(LINE_SIZE_MASK, XFORM, MASK): Adjust.
(struct dcache_block): Make it expandable.
(struct dcache_struct): New field.
(dcache_invalidate): Discard freelist upon dcache_line_size changes.
(dcache_hit, dcache_alloc, dcache_peek_byte): Adjust.
(dcache_poke_byte, dcache_print_line): Adjust.
(set_dcache_size, set_dcache_line_size): New functions.
(set_dcache_command, show_dcache_command): New functions.
(_initialize_dcache): Add new commands.
doc/ChangeLog:
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* gdb.texinfo (Caching Remote Data): Document {set,show} dcache
size and line-size.
2011-07-26 23:24:02 +08:00
|
|
|
dcache->line_size = dcache_line_size;
|
2009-09-01 04:18:46 +08:00
|
|
|
dcache->ptid = null_ptid;
|
2009-08-21 06:30:12 +08:00
|
|
|
|
1999-04-16 09:35:26 +08:00
|
|
|
return dcache;
|
|
|
|
|
}
|
|
|
|
|
|
* MAINTAINERS: Add myself as dcache.c maintainer.
* remote-nindy.c (nindy_load): Invalidate dcache.
* dcache.c (dcache_invd): Renamed from dcache_flush. The term
flush with respect to caches usually implies that data will be
written to memory.
(dcache_init, dcache_xfer_memory): Updated.
* monitor.c (flush_monitor_dcache, monitor_resume, monitor_load):
Updated.
* ocd.c (ocd_open, ocd_resume, bdm_reset_command): Updated.
* remote-bug.c (bug_load, bug_resume): Updated.
* remote-nindy.c (nindy_open, nindy_resume): Updated.
* remote-sds.c (sds_open, sds_resume): Updated.
* remote-utils.c (gr_open): Updated.
* remote.c (remote_open_1, remote_resume, remote_async_resume,
remote_cisco_open): Updated.
* wince.c (child_create_inferior, child_resume): Updated.
* monitor.c (monitor_open): Free dcache before creating a new one.
* dcache.c (dcache_free): New function.
* dcache.h (dcache_free): New prototype.
-------------------------------------------------------------------
2000-08-19 06:52:23 +08:00
|
|
|
|
1999-04-16 09:35:26 +08:00
|
|
|
/* Read or write LEN bytes from inferior memory at MEMADDR, transferring
|
|
|
|
|
to or from debugger address MYADDR. Write to inferior if SHOULD_WRITE is
|
|
|
|
|
nonzero.
|
|
|
|
|
|
2009-11-14 07:26:19 +08:00
|
|
|
Return the number of bytes actually transfered, or -1 if the
|
|
|
|
|
transfer is not supported or otherwise fails. Return of a non-negative
|
|
|
|
|
value less than LEN indicates that no further transfer is possible.
|
|
|
|
|
NOTE: This is different than the to_xfer_partial interface, in which
|
|
|
|
|
positive values less than LEN mean further transfers may be possible. */
|
1999-04-16 09:35:26 +08:00
|
|
|
|
|
|
|
|
int
|
2009-08-21 06:30:12 +08:00
|
|
|
dcache_xfer_memory (struct target_ops *ops, DCACHE *dcache,
|
|
|
|
|
CORE_ADDR memaddr, gdb_byte *myaddr,
|
2005-05-16 Andrew Cagney <cagney@gnu.org>
* target.h (target_read_partial, target_write_partial)
(do_xfer_memory, xfer_memory, target_read, target_write)
(get_target_memory): For buffers, change "void*" to gdb_byte.
(struct target_ops): Ditto for to_xfer_partial and
deprecated_xfer_memory.
* dcache.h (dcache_xfer_memory): Ditto.
* target.c (default_xfer_partial, target_read_partial)
(target_write_partial, target_read, target_write)
(do_xfer_memory, update_current_target, get_target_memory): Update.
(target_read_string): Change buf to a gdb_byte.
* dcache.c (dcache_xfer_memory): Update.
* exec.c (xfer_memory): Make buffer type to gdb_byte.
* mem-break.c (default_memory_insert_breakpoint): Remove cast.
* disasm.c (dis_asm_read_memory): Remove cast, use gdb_byte.
2005-05-16 12:45:43 +08:00
|
|
|
int len, int should_write)
|
1999-04-16 09:35:26 +08:00
|
|
|
{
|
|
|
|
|
int i;
|
2009-08-21 06:30:12 +08:00
|
|
|
int res;
|
2005-05-24 03:32:28 +08:00
|
|
|
int (*xfunc) (DCACHE *dcache, CORE_ADDR addr, gdb_byte *ptr);
|
2010-05-15 01:53:16 +08:00
|
|
|
|
* exec.c (xfer_memory): Add attrib argument.
* infptrace.c (child_xfer_memory): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
* remote-adapt.c (adapt_xfer_inferior_memory): Likewise.
* remote-array.c (array_xfer_memory): Likewise.
* remote-bug.c (bug_xfer_memory): Likewise.
* remote-e7000.c (e7000_xfer_inferior_memory): Likewise.
* remote-eb.c (eb_xfer_inferior_memory): Likewise.
* remote-es.c (es1800_xfer_inferior_memory): Likewise.
* remote-mips.c (mips_xfer_memory): Likewise.
* remote-mm.c (mm_xfer_inferior_memory): Likewise.
* remote-nindy.c (nindy_xfer_inferior_memory): Likewise.
* remote-os9k.c (rombug_xfer_inferior_memory): Likewise.
* remote-rdi.c (arm_rdi_xfer_memory): Likewise.
* remote-rdp.c (remote_rdp_xfer_inferior_memory): Likewise.
* remote-sds.c (sds_xfer_memory): Likewise.
* remote-sim.c (gdbsim_xfer_inferior_memory): Likewise.
* remote-st.c (st2000_xfer_inferior_memory): Likewise.
* remote-udi.c (udi_xfer_inferior_memory): Likewise.
* remote-vx.c (vx_xfer_memory): Likewise.
* remote.c (remote_xfer_memory): Likewise.
* target.c (debug_to_xfer_memory, do_xfer_memory): Likewise.
* target.h (child_xfer_memory, do_xfer_memory, xfer_memory): Likewise.
* target.h (#include "memattr.h"): Added.
(target_ops.to_xfer_memory): Add attrib argument.
* wince.c (_initialize_inftarg): Removed call to set_dcache_state.
* dcache.h (set_dcache_state): Removed declaration.
* dcache.c (set_dcache_state): Removed definition
* dcache.c: Update module comment, as dcache is now enabled and
disabled with memory region attributes instead of by the global
variable "remotecache". Add comment describing the interaction
between dcache and memory region attributes.
(dcache_xfer_memory): Add comment describing benefits of moving
cache writeback to a higher level.
(dcache_struct): Removed cache_has_stuff field. This was used to
record whether the cache had been accessed in order to invalidate
it when it was disabled. However, this is not needed because the
cache is write through and the code that enables, disables, and
deletes memory regions invalidate the cache. Add comment which
suggests that we could be more selective and only invalidate those
cache lines containing data from those memory regions.
(dcache_invalidate): Updated.
(dcache_xfer_memory): Updated.
(dcache_alloc): Don't abort() if dcache_enabled_p is clear.
(dcache_xfer_memory): Removed code that called do_xfer_memory() to
perform a uncached transfer if dcache_enabled_p was clear. This
function is now only called if caching is enabled for the memory
region.
(dcache_info): Always print cache info.
* target.c (do_xfer_memory): Add attrib argument.
(target_xfer_memory, target_xfer_memory_partial): Break transfer
into chunks defined by memory regions, pass region attributes to
do_xfer_memory().
* dcache.c (dcache_read_line, dcache_write_line): Likewise.
* Makefile.in (SFILES): Add memattr.c.
(COMMON_OBS): Add memattr.o.
(dcache.o): Add target.h to dependencies.
* memattr.c: New file.
* memattr.h: Likewise.
2001-01-24 06:48:56 +08:00
|
|
|
xfunc = should_write ? dcache_poke_byte : dcache_peek_byte;
|
1999-04-16 09:35:26 +08:00
|
|
|
|
2009-09-01 04:18:46 +08:00
|
|
|
/* If this is a different inferior from what we've recorded,
|
|
|
|
|
flush the cache. */
|
|
|
|
|
|
|
|
|
|
if (! ptid_equal (inferior_ptid, dcache->ptid))
|
|
|
|
|
{
|
|
|
|
|
dcache_invalidate (dcache);
|
|
|
|
|
dcache->ptid = inferior_ptid;
|
|
|
|
|
}
|
|
|
|
|
|
2009-08-21 06:30:12 +08:00
|
|
|
/* Do write-through first, so that if it fails, we don't write to
|
|
|
|
|
the cache at all. */
|
|
|
|
|
|
|
|
|
|
if (should_write)
|
|
|
|
|
{
|
|
|
|
|
res = target_write (ops, TARGET_OBJECT_RAW_MEMORY,
|
|
|
|
|
NULL, myaddr, memaddr, len);
|
2009-09-01 04:18:46 +08:00
|
|
|
if (res <= 0)
|
|
|
|
|
return res;
|
|
|
|
|
/* Update LEN to what was actually written. */
|
|
|
|
|
len = res;
|
2009-08-21 06:30:12 +08:00
|
|
|
}
|
|
|
|
|
|
* exec.c (xfer_memory): Add attrib argument.
* infptrace.c (child_xfer_memory): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
* remote-adapt.c (adapt_xfer_inferior_memory): Likewise.
* remote-array.c (array_xfer_memory): Likewise.
* remote-bug.c (bug_xfer_memory): Likewise.
* remote-e7000.c (e7000_xfer_inferior_memory): Likewise.
* remote-eb.c (eb_xfer_inferior_memory): Likewise.
* remote-es.c (es1800_xfer_inferior_memory): Likewise.
* remote-mips.c (mips_xfer_memory): Likewise.
* remote-mm.c (mm_xfer_inferior_memory): Likewise.
* remote-nindy.c (nindy_xfer_inferior_memory): Likewise.
* remote-os9k.c (rombug_xfer_inferior_memory): Likewise.
* remote-rdi.c (arm_rdi_xfer_memory): Likewise.
* remote-rdp.c (remote_rdp_xfer_inferior_memory): Likewise.
* remote-sds.c (sds_xfer_memory): Likewise.
* remote-sim.c (gdbsim_xfer_inferior_memory): Likewise.
* remote-st.c (st2000_xfer_inferior_memory): Likewise.
* remote-udi.c (udi_xfer_inferior_memory): Likewise.
* remote-vx.c (vx_xfer_memory): Likewise.
* remote.c (remote_xfer_memory): Likewise.
* target.c (debug_to_xfer_memory, do_xfer_memory): Likewise.
* target.h (child_xfer_memory, do_xfer_memory, xfer_memory): Likewise.
* target.h (#include "memattr.h"): Added.
(target_ops.to_xfer_memory): Add attrib argument.
* wince.c (_initialize_inftarg): Removed call to set_dcache_state.
* dcache.h (set_dcache_state): Removed declaration.
* dcache.c (set_dcache_state): Removed definition
* dcache.c: Update module comment, as dcache is now enabled and
disabled with memory region attributes instead of by the global
variable "remotecache". Add comment describing the interaction
between dcache and memory region attributes.
(dcache_xfer_memory): Add comment describing benefits of moving
cache writeback to a higher level.
(dcache_struct): Removed cache_has_stuff field. This was used to
record whether the cache had been accessed in order to invalidate
it when it was disabled. However, this is not needed because the
cache is write through and the code that enables, disables, and
deletes memory regions invalidate the cache. Add comment which
suggests that we could be more selective and only invalidate those
cache lines containing data from those memory regions.
(dcache_invalidate): Updated.
(dcache_xfer_memory): Updated.
(dcache_alloc): Don't abort() if dcache_enabled_p is clear.
(dcache_xfer_memory): Removed code that called do_xfer_memory() to
perform a uncached transfer if dcache_enabled_p was clear. This
function is now only called if caching is enabled for the memory
region.
(dcache_info): Always print cache info.
* target.c (do_xfer_memory): Add attrib argument.
(target_xfer_memory, target_xfer_memory_partial): Break transfer
into chunks defined by memory regions, pass region attributes to
do_xfer_memory().
* dcache.c (dcache_read_line, dcache_write_line): Likewise.
* Makefile.in (SFILES): Add memattr.c.
(COMMON_OBS): Add memattr.o.
(dcache.o): Add target.h to dependencies.
* memattr.c: New file.
* memattr.h: Likewise.
2001-01-24 06:48:56 +08:00
|
|
|
for (i = 0; i < len; i++)
|
1999-04-16 09:35:26 +08:00
|
|
|
{
|
* exec.c (xfer_memory): Add attrib argument.
* infptrace.c (child_xfer_memory): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
* remote-adapt.c (adapt_xfer_inferior_memory): Likewise.
* remote-array.c (array_xfer_memory): Likewise.
* remote-bug.c (bug_xfer_memory): Likewise.
* remote-e7000.c (e7000_xfer_inferior_memory): Likewise.
* remote-eb.c (eb_xfer_inferior_memory): Likewise.
* remote-es.c (es1800_xfer_inferior_memory): Likewise.
* remote-mips.c (mips_xfer_memory): Likewise.
* remote-mm.c (mm_xfer_inferior_memory): Likewise.
* remote-nindy.c (nindy_xfer_inferior_memory): Likewise.
* remote-os9k.c (rombug_xfer_inferior_memory): Likewise.
* remote-rdi.c (arm_rdi_xfer_memory): Likewise.
* remote-rdp.c (remote_rdp_xfer_inferior_memory): Likewise.
* remote-sds.c (sds_xfer_memory): Likewise.
* remote-sim.c (gdbsim_xfer_inferior_memory): Likewise.
* remote-st.c (st2000_xfer_inferior_memory): Likewise.
* remote-udi.c (udi_xfer_inferior_memory): Likewise.
* remote-vx.c (vx_xfer_memory): Likewise.
* remote.c (remote_xfer_memory): Likewise.
* target.c (debug_to_xfer_memory, do_xfer_memory): Likewise.
* target.h (child_xfer_memory, do_xfer_memory, xfer_memory): Likewise.
* target.h (#include "memattr.h"): Added.
(target_ops.to_xfer_memory): Add attrib argument.
* wince.c (_initialize_inftarg): Removed call to set_dcache_state.
* dcache.h (set_dcache_state): Removed declaration.
* dcache.c (set_dcache_state): Removed definition
* dcache.c: Update module comment, as dcache is now enabled and
disabled with memory region attributes instead of by the global
variable "remotecache". Add comment describing the interaction
between dcache and memory region attributes.
(dcache_xfer_memory): Add comment describing benefits of moving
cache writeback to a higher level.
(dcache_struct): Removed cache_has_stuff field. This was used to
record whether the cache had been accessed in order to invalidate
it when it was disabled. However, this is not needed because the
cache is write through and the code that enables, disables, and
deletes memory regions invalidate the cache. Add comment which
suggests that we could be more selective and only invalidate those
cache lines containing data from those memory regions.
(dcache_invalidate): Updated.
(dcache_xfer_memory): Updated.
(dcache_alloc): Don't abort() if dcache_enabled_p is clear.
(dcache_xfer_memory): Removed code that called do_xfer_memory() to
perform a uncached transfer if dcache_enabled_p was clear. This
function is now only called if caching is enabled for the memory
region.
(dcache_info): Always print cache info.
* target.c (do_xfer_memory): Add attrib argument.
(target_xfer_memory, target_xfer_memory_partial): Break transfer
into chunks defined by memory regions, pass region attributes to
do_xfer_memory().
* dcache.c (dcache_read_line, dcache_write_line): Likewise.
* Makefile.in (SFILES): Add memattr.c.
(COMMON_OBS): Add memattr.o.
(dcache.o): Add target.h to dependencies.
* memattr.c: New file.
* memattr.h: Likewise.
2001-01-24 06:48:56 +08:00
|
|
|
if (!xfunc (dcache, memaddr + i, myaddr + i))
|
2009-09-01 04:18:46 +08:00
|
|
|
{
|
|
|
|
|
/* That failed. Discard its cache line so we don't have a
|
|
|
|
|
partially read line. */
|
|
|
|
|
dcache_invalidate_line (dcache, memaddr + i);
|
|
|
|
|
/* If we're writing, we still wrote LEN bytes. */
|
|
|
|
|
if (should_write)
|
|
|
|
|
return len;
|
|
|
|
|
else
|
|
|
|
|
return i;
|
|
|
|
|
}
|
1999-04-16 09:35:26 +08:00
|
|
|
}
|
2009-08-21 06:30:12 +08:00
|
|
|
|
|
|
|
|
return len;
|
|
|
|
|
}
|
1999-04-16 09:35:26 +08:00
|
|
|
|
2009-08-21 06:30:12 +08:00
|
|
|
/* FIXME: There would be some benefit to making the cache write-back and
|
|
|
|
|
moving the writeback operation to a higher layer, as it could occur
|
|
|
|
|
after a sequence of smaller writes have been completed (as when a stack
|
|
|
|
|
frame is constructed for an inferior function call). Note that only
|
|
|
|
|
moving it up one level to target_xfer_memory[_partial]() is not
|
|
|
|
|
sufficient since we want to coalesce memory transfers that are
|
|
|
|
|
"logically" connected but not actually a single call to one of the
|
|
|
|
|
memory transfer functions. */
|
* exec.c (xfer_memory): Add attrib argument.
* infptrace.c (child_xfer_memory): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
* remote-adapt.c (adapt_xfer_inferior_memory): Likewise.
* remote-array.c (array_xfer_memory): Likewise.
* remote-bug.c (bug_xfer_memory): Likewise.
* remote-e7000.c (e7000_xfer_inferior_memory): Likewise.
* remote-eb.c (eb_xfer_inferior_memory): Likewise.
* remote-es.c (es1800_xfer_inferior_memory): Likewise.
* remote-mips.c (mips_xfer_memory): Likewise.
* remote-mm.c (mm_xfer_inferior_memory): Likewise.
* remote-nindy.c (nindy_xfer_inferior_memory): Likewise.
* remote-os9k.c (rombug_xfer_inferior_memory): Likewise.
* remote-rdi.c (arm_rdi_xfer_memory): Likewise.
* remote-rdp.c (remote_rdp_xfer_inferior_memory): Likewise.
* remote-sds.c (sds_xfer_memory): Likewise.
* remote-sim.c (gdbsim_xfer_inferior_memory): Likewise.
* remote-st.c (st2000_xfer_inferior_memory): Likewise.
* remote-udi.c (udi_xfer_inferior_memory): Likewise.
* remote-vx.c (vx_xfer_memory): Likewise.
* remote.c (remote_xfer_memory): Likewise.
* target.c (debug_to_xfer_memory, do_xfer_memory): Likewise.
* target.h (child_xfer_memory, do_xfer_memory, xfer_memory): Likewise.
* target.h (#include "memattr.h"): Added.
(target_ops.to_xfer_memory): Add attrib argument.
* wince.c (_initialize_inftarg): Removed call to set_dcache_state.
* dcache.h (set_dcache_state): Removed declaration.
* dcache.c (set_dcache_state): Removed definition
* dcache.c: Update module comment, as dcache is now enabled and
disabled with memory region attributes instead of by the global
variable "remotecache". Add comment describing the interaction
between dcache and memory region attributes.
(dcache_xfer_memory): Add comment describing benefits of moving
cache writeback to a higher level.
(dcache_struct): Removed cache_has_stuff field. This was used to
record whether the cache had been accessed in order to invalidate
it when it was disabled. However, this is not needed because the
cache is write through and the code that enables, disables, and
deletes memory regions invalidate the cache. Add comment which
suggests that we could be more selective and only invalidate those
cache lines containing data from those memory regions.
(dcache_invalidate): Updated.
(dcache_xfer_memory): Updated.
(dcache_alloc): Don't abort() if dcache_enabled_p is clear.
(dcache_xfer_memory): Removed code that called do_xfer_memory() to
perform a uncached transfer if dcache_enabled_p was clear. This
function is now only called if caching is enabled for the memory
region.
(dcache_info): Always print cache info.
* target.c (do_xfer_memory): Add attrib argument.
(target_xfer_memory, target_xfer_memory_partial): Break transfer
into chunks defined by memory regions, pass region attributes to
do_xfer_memory().
* dcache.c (dcache_read_line, dcache_write_line): Likewise.
* Makefile.in (SFILES): Add memattr.c.
(COMMON_OBS): Add memattr.o.
(dcache.o): Add target.h to dependencies.
* memattr.c: New file.
* memattr.h: Likewise.
2001-01-24 06:48:56 +08:00
|
|
|
|
2009-09-01 04:18:46 +08:00
|
|
|
/* Just update any cache lines which are already present. This is called
|
|
|
|
|
by memory_xfer_partial in cases where the access would otherwise not go
|
|
|
|
|
through the cache. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
dcache_update (DCACHE *dcache, CORE_ADDR memaddr, gdb_byte *myaddr, int len)
|
|
|
|
|
{
|
|
|
|
|
int i;
|
2010-05-15 01:53:16 +08:00
|
|
|
|
2009-09-01 04:18:46 +08:00
|
|
|
for (i = 0; i < len; i++)
|
|
|
|
|
dcache_poke_byte (dcache, memaddr + i, myaddr + i);
|
|
|
|
|
}
|
|
|
|
|
|
2013-10-29 21:34:20 +08:00
|
|
|
/* Print DCACHE line INDEX. */
|
|
|
|
|
|
2009-08-21 06:30:12 +08:00
|
|
|
static void
|
2013-10-29 21:34:20 +08:00
|
|
|
dcache_print_line (DCACHE *dcache, int index)
|
2009-08-21 06:30:12 +08:00
|
|
|
{
|
|
|
|
|
splay_tree_node n;
|
|
|
|
|
struct dcache_block *db;
|
|
|
|
|
int i, j;
|
|
|
|
|
|
2013-10-29 21:34:20 +08:00
|
|
|
if (dcache == NULL)
|
2009-08-21 06:30:12 +08:00
|
|
|
{
|
|
|
|
|
printf_filtered (_("No data cache available.\n"));
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
2013-10-29 21:34:20 +08:00
|
|
|
n = splay_tree_min (dcache->tree);
|
2009-08-21 06:30:12 +08:00
|
|
|
|
|
|
|
|
for (i = index; i > 0; --i)
|
|
|
|
|
{
|
|
|
|
|
if (!n)
|
|
|
|
|
break;
|
2013-10-29 21:34:20 +08:00
|
|
|
n = splay_tree_successor (dcache->tree, n->key);
|
2009-08-21 06:30:12 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (!n)
|
|
|
|
|
{
|
|
|
|
|
printf_filtered (_("No such cache line exists.\n"));
|
|
|
|
|
return;
|
|
|
|
|
}
|
* exec.c (xfer_memory): Add attrib argument.
* infptrace.c (child_xfer_memory): Likewise.
* monitor.c (monitor_xfer_memory): Likewise.
* remote-adapt.c (adapt_xfer_inferior_memory): Likewise.
* remote-array.c (array_xfer_memory): Likewise.
* remote-bug.c (bug_xfer_memory): Likewise.
* remote-e7000.c (e7000_xfer_inferior_memory): Likewise.
* remote-eb.c (eb_xfer_inferior_memory): Likewise.
* remote-es.c (es1800_xfer_inferior_memory): Likewise.
* remote-mips.c (mips_xfer_memory): Likewise.
* remote-mm.c (mm_xfer_inferior_memory): Likewise.
* remote-nindy.c (nindy_xfer_inferior_memory): Likewise.
* remote-os9k.c (rombug_xfer_inferior_memory): Likewise.
* remote-rdi.c (arm_rdi_xfer_memory): Likewise.
* remote-rdp.c (remote_rdp_xfer_inferior_memory): Likewise.
* remote-sds.c (sds_xfer_memory): Likewise.
* remote-sim.c (gdbsim_xfer_inferior_memory): Likewise.
* remote-st.c (st2000_xfer_inferior_memory): Likewise.
* remote-udi.c (udi_xfer_inferior_memory): Likewise.
* remote-vx.c (vx_xfer_memory): Likewise.
* remote.c (remote_xfer_memory): Likewise.
* target.c (debug_to_xfer_memory, do_xfer_memory): Likewise.
* target.h (child_xfer_memory, do_xfer_memory, xfer_memory): Likewise.
* target.h (#include "memattr.h"): Added.
(target_ops.to_xfer_memory): Add attrib argument.
* wince.c (_initialize_inftarg): Removed call to set_dcache_state.
* dcache.h (set_dcache_state): Removed declaration.
* dcache.c (set_dcache_state): Removed definition
* dcache.c: Update module comment, as dcache is now enabled and
disabled with memory region attributes instead of by the global
variable "remotecache". Add comment describing the interaction
between dcache and memory region attributes.
(dcache_xfer_memory): Add comment describing benefits of moving
cache writeback to a higher level.
(dcache_struct): Removed cache_has_stuff field. This was used to
record whether the cache had been accessed in order to invalidate
it when it was disabled. However, this is not needed because the
cache is write through and the code that enables, disables, and
deletes memory regions invalidate the cache. Add comment which
suggests that we could be more selective and only invalidate those
cache lines containing data from those memory regions.
(dcache_invalidate): Updated.
(dcache_xfer_memory): Updated.
(dcache_alloc): Don't abort() if dcache_enabled_p is clear.
(dcache_xfer_memory): Removed code that called do_xfer_memory() to
perform a uncached transfer if dcache_enabled_p was clear. This
function is now only called if caching is enabled for the memory
region.
(dcache_info): Always print cache info.
* target.c (do_xfer_memory): Add attrib argument.
(target_xfer_memory, target_xfer_memory_partial): Break transfer
into chunks defined by memory regions, pass region attributes to
do_xfer_memory().
* dcache.c (dcache_read_line, dcache_write_line): Likewise.
* Makefile.in (SFILES): Add memattr.c.
(COMMON_OBS): Add memattr.o.
(dcache.o): Add target.h to dependencies.
* memattr.c: New file.
* memattr.h: Likewise.
2001-01-24 06:48:56 +08:00
|
|
|
|
2009-08-21 06:30:12 +08:00
|
|
|
db = (struct dcache_block *) n->value;
|
|
|
|
|
|
2009-08-21 07:30:15 +08:00
|
|
|
printf_filtered (_("Line %d: address %s [%d hits]\n"),
|
* gdbarch.sh (target_gdbarch): Remove macro.
(get_target_gdbarch): Rename to target_gdbarch.
* gdbarch.c, gdbarch.h: Rebuild.
* ada-tasks.c, aix-thread.c, amd64-linux-nat.c, arch-utils.c,
arm-tdep.c, auxv.c, breakpoint.c, bsd-uthread.c, corefile.c,
darwin-nat-info.c, dcache.c, dsrec.c, exec.c, fbsd-nat.c,
filesystem.c, gcore.c, gnu-nat.c, i386-darwin-nat.c, i386-nat.c,
ia64-vms-tdep.c, inf-ptrace.c, infcmd.c, jit.c, linux-nat.c,
linux-tdep.c, linux-thread-db.c, m32r-rom.c, memattr.c,
mep-tdep.c, microblaze-tdep.c, mips-linux-nat.c,
mips-linux-tdep.c, mips-tdep.c, monitor.c, moxie-tdep.c,
nto-procfs.c, nto-tdep.c, ppc-linux-nat.c, proc-service.c,
procfs.c, progspace.c, ravenscar-thread.c, record.c,
remote-m32r-sdi.c, remote-mips.c, remote-sim.c, remote.c,
rl78-tdep.c, rs6000-nat.c, rx-tdep.c, s390-nat.c, sol-thread.c,
solib-darwin.c, solib-dsbt.c, solib-frv.c, solib-ia64-hpux.c,
solib-irix.c, solib-pa64.c, solib-som.c, solib-spu.c,
solib-sunos.c, solib-svr4.c, solib.c, spu-linux-nat.c,
spu-multiarch.c, spu-tdep.c, symfile-mem.c, symfile.c, symtab.c,
target-descriptions.c, target.c, target.h, tracepoint.c,
windows-nat.c, windows-tdep.c, xcoffsolib.c, cli/cli-dump.c,
common/agent.c, mi/mi-interp.c, python/py-finishbreakpoint.c,
python/py-inferior.c, python/python.c: Update.
2012-11-10 03:58:03 +08:00
|
|
|
index, paddress (target_gdbarch (), db->addr), db->refs);
|
2009-08-21 06:30:12 +08:00
|
|
|
|
2013-10-29 21:34:20 +08:00
|
|
|
for (j = 0; j < dcache->line_size; j++)
|
2009-08-21 06:30:12 +08:00
|
|
|
{
|
|
|
|
|
printf_filtered ("%02x ", db->data[j]);
|
|
|
|
|
|
2011-01-08 03:36:19 +08:00
|
|
|
/* Print a newline every 16 bytes (48 characters). */
|
2013-10-29 21:34:20 +08:00
|
|
|
if ((j % 16 == 15) && (j != dcache->line_size - 1))
|
2009-08-21 06:30:12 +08:00
|
|
|
printf_filtered ("\n");
|
|
|
|
|
}
|
|
|
|
|
printf_filtered ("\n");
|
1999-04-16 09:35:26 +08:00
|
|
|
}
|
|
|
|
|
|
2013-10-29 21:34:20 +08:00
|
|
|
/* Parse EXP and show the info about DCACHE. */
|
|
|
|
|
|
1999-07-08 04:19:36 +08:00
|
|
|
static void
|
2013-10-29 21:34:20 +08:00
|
|
|
dcache_info_1 (DCACHE *dcache, char *exp)
|
1999-04-16 09:35:26 +08:00
|
|
|
{
|
2009-08-21 06:30:12 +08:00
|
|
|
splay_tree_node n;
|
2010-05-06 04:50:24 +08:00
|
|
|
int i, refcount;
|
2009-08-21 06:30:12 +08:00
|
|
|
|
|
|
|
|
if (exp)
|
|
|
|
|
{
|
|
|
|
|
char *linestart;
|
2010-05-15 01:53:16 +08:00
|
|
|
|
2009-08-21 06:30:12 +08:00
|
|
|
i = strtol (exp, &linestart, 10);
|
|
|
|
|
if (linestart == exp || i < 0)
|
|
|
|
|
{
|
|
|
|
|
printf_filtered (_("Usage: info dcache [linenumber]\n"));
|
|
|
|
|
return;
|
|
|
|
|
}
|
1999-04-16 09:35:26 +08:00
|
|
|
|
2013-10-29 21:34:20 +08:00
|
|
|
dcache_print_line (dcache, i);
|
2009-08-21 06:30:12 +08:00
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* NEWS: Mention dcache configuration.
* dcache.c (dcache_set_list, dcache_show_list): New variables.
(dcache_size, dcache_line_size): New variables.
(LINE_SIZE_MASK, XFORM, MASK): Adjust.
(struct dcache_block): Make it expandable.
(struct dcache_struct): New field.
(dcache_invalidate): Discard freelist upon dcache_line_size changes.
(dcache_hit, dcache_alloc, dcache_peek_byte): Adjust.
(dcache_poke_byte, dcache_print_line): Adjust.
(set_dcache_size, set_dcache_line_size): New functions.
(set_dcache_command, show_dcache_command): New functions.
(_initialize_dcache): Add new commands.
doc/ChangeLog:
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* gdb.texinfo (Caching Remote Data): Document {set,show} dcache
size and line-size.
2011-07-26 23:24:02 +08:00
|
|
|
printf_filtered (_("Dcache %u lines of %u bytes each.\n"),
|
|
|
|
|
dcache_size,
|
2013-10-29 21:34:20 +08:00
|
|
|
dcache ? (unsigned) dcache->line_size
|
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* NEWS: Mention dcache configuration.
* dcache.c (dcache_set_list, dcache_show_list): New variables.
(dcache_size, dcache_line_size): New variables.
(LINE_SIZE_MASK, XFORM, MASK): Adjust.
(struct dcache_block): Make it expandable.
(struct dcache_struct): New field.
(dcache_invalidate): Discard freelist upon dcache_line_size changes.
(dcache_hit, dcache_alloc, dcache_peek_byte): Adjust.
(dcache_poke_byte, dcache_print_line): Adjust.
(set_dcache_size, set_dcache_line_size): New functions.
(set_dcache_command, show_dcache_command): New functions.
(_initialize_dcache): Add new commands.
doc/ChangeLog:
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* gdb.texinfo (Caching Remote Data): Document {set,show} dcache
size and line-size.
2011-07-26 23:24:02 +08:00
|
|
|
: dcache_line_size);
|
1999-04-16 09:35:26 +08:00
|
|
|
|
2013-10-29 21:34:20 +08:00
|
|
|
if (dcache == NULL || ptid_equal (dcache->ptid, null_ptid))
|
1999-04-16 09:35:26 +08:00
|
|
|
{
|
2009-08-21 06:30:12 +08:00
|
|
|
printf_filtered (_("No data cache available.\n"));
|
|
|
|
|
return;
|
|
|
|
|
}
|
2000-08-11 22:47:38 +08:00
|
|
|
|
2009-09-01 04:18:46 +08:00
|
|
|
printf_filtered (_("Contains data for %s\n"),
|
2013-10-29 21:34:20 +08:00
|
|
|
target_pid_to_str (dcache->ptid));
|
2009-09-01 04:18:46 +08:00
|
|
|
|
2009-08-21 06:30:12 +08:00
|
|
|
refcount = 0;
|
1999-04-16 09:35:26 +08:00
|
|
|
|
2013-10-29 21:34:20 +08:00
|
|
|
n = splay_tree_min (dcache->tree);
|
2009-08-21 06:30:12 +08:00
|
|
|
i = 0;
|
1999-04-16 09:35:26 +08:00
|
|
|
|
2009-08-21 06:30:12 +08:00
|
|
|
while (n)
|
|
|
|
|
{
|
|
|
|
|
struct dcache_block *db = (struct dcache_block *) n->value;
|
|
|
|
|
|
2009-08-21 07:30:15 +08:00
|
|
|
printf_filtered (_("Line %d: address %s [%d hits]\n"),
|
* gdbarch.sh (target_gdbarch): Remove macro.
(get_target_gdbarch): Rename to target_gdbarch.
* gdbarch.c, gdbarch.h: Rebuild.
* ada-tasks.c, aix-thread.c, amd64-linux-nat.c, arch-utils.c,
arm-tdep.c, auxv.c, breakpoint.c, bsd-uthread.c, corefile.c,
darwin-nat-info.c, dcache.c, dsrec.c, exec.c, fbsd-nat.c,
filesystem.c, gcore.c, gnu-nat.c, i386-darwin-nat.c, i386-nat.c,
ia64-vms-tdep.c, inf-ptrace.c, infcmd.c, jit.c, linux-nat.c,
linux-tdep.c, linux-thread-db.c, m32r-rom.c, memattr.c,
mep-tdep.c, microblaze-tdep.c, mips-linux-nat.c,
mips-linux-tdep.c, mips-tdep.c, monitor.c, moxie-tdep.c,
nto-procfs.c, nto-tdep.c, ppc-linux-nat.c, proc-service.c,
procfs.c, progspace.c, ravenscar-thread.c, record.c,
remote-m32r-sdi.c, remote-mips.c, remote-sim.c, remote.c,
rl78-tdep.c, rs6000-nat.c, rx-tdep.c, s390-nat.c, sol-thread.c,
solib-darwin.c, solib-dsbt.c, solib-frv.c, solib-ia64-hpux.c,
solib-irix.c, solib-pa64.c, solib-som.c, solib-spu.c,
solib-sunos.c, solib-svr4.c, solib.c, spu-linux-nat.c,
spu-multiarch.c, spu-tdep.c, symfile-mem.c, symfile.c, symtab.c,
target-descriptions.c, target.c, target.h, tracepoint.c,
windows-nat.c, windows-tdep.c, xcoffsolib.c, cli/cli-dump.c,
common/agent.c, mi/mi-interp.c, python/py-finishbreakpoint.c,
python/py-inferior.c, python/python.c: Update.
2012-11-10 03:58:03 +08:00
|
|
|
i, paddress (target_gdbarch (), db->addr), db->refs);
|
2009-08-21 06:30:12 +08:00
|
|
|
i++;
|
|
|
|
|
refcount += db->refs;
|
|
|
|
|
|
2013-10-29 21:34:20 +08:00
|
|
|
n = splay_tree_successor (dcache->tree, n->key);
|
1999-04-16 09:35:26 +08:00
|
|
|
}
|
2009-08-21 06:30:12 +08:00
|
|
|
|
|
|
|
|
printf_filtered (_("Cache state: %d active lines, %d hits\n"), i, refcount);
|
1999-04-16 09:35:26 +08:00
|
|
|
}
|
|
|
|
|
|
2013-10-29 21:34:20 +08:00
|
|
|
static void
|
|
|
|
|
dcache_info (char *exp, int tty)
|
|
|
|
|
{
|
|
|
|
|
dcache_info_1 (target_dcache_get (), exp);
|
|
|
|
|
}
|
|
|
|
|
|
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* NEWS: Mention dcache configuration.
* dcache.c (dcache_set_list, dcache_show_list): New variables.
(dcache_size, dcache_line_size): New variables.
(LINE_SIZE_MASK, XFORM, MASK): Adjust.
(struct dcache_block): Make it expandable.
(struct dcache_struct): New field.
(dcache_invalidate): Discard freelist upon dcache_line_size changes.
(dcache_hit, dcache_alloc, dcache_peek_byte): Adjust.
(dcache_poke_byte, dcache_print_line): Adjust.
(set_dcache_size, set_dcache_line_size): New functions.
(set_dcache_command, show_dcache_command): New functions.
(_initialize_dcache): Add new commands.
doc/ChangeLog:
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* gdb.texinfo (Caching Remote Data): Document {set,show} dcache
size and line-size.
2011-07-26 23:24:02 +08:00
|
|
|
static void
|
|
|
|
|
set_dcache_size (char *args, int from_tty,
|
|
|
|
|
struct cmd_list_element *c)
|
|
|
|
|
{
|
|
|
|
|
if (dcache_size == 0)
|
|
|
|
|
{
|
|
|
|
|
dcache_size = DCACHE_DEFAULT_SIZE;
|
|
|
|
|
error (_("Dcache size must be greater than 0."));
|
|
|
|
|
}
|
2013-10-29 21:34:20 +08:00
|
|
|
target_dcache_invalidate ();
|
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* NEWS: Mention dcache configuration.
* dcache.c (dcache_set_list, dcache_show_list): New variables.
(dcache_size, dcache_line_size): New variables.
(LINE_SIZE_MASK, XFORM, MASK): Adjust.
(struct dcache_block): Make it expandable.
(struct dcache_struct): New field.
(dcache_invalidate): Discard freelist upon dcache_line_size changes.
(dcache_hit, dcache_alloc, dcache_peek_byte): Adjust.
(dcache_poke_byte, dcache_print_line): Adjust.
(set_dcache_size, set_dcache_line_size): New functions.
(set_dcache_command, show_dcache_command): New functions.
(_initialize_dcache): Add new commands.
doc/ChangeLog:
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* gdb.texinfo (Caching Remote Data): Document {set,show} dcache
size and line-size.
2011-07-26 23:24:02 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
set_dcache_line_size (char *args, int from_tty,
|
|
|
|
|
struct cmd_list_element *c)
|
|
|
|
|
{
|
|
|
|
|
if (dcache_line_size < 2
|
|
|
|
|
|| (dcache_line_size & (dcache_line_size - 1)) != 0)
|
|
|
|
|
{
|
|
|
|
|
unsigned d = dcache_line_size;
|
|
|
|
|
dcache_line_size = DCACHE_DEFAULT_LINE_SIZE;
|
|
|
|
|
error (_("Invalid dcache line size: %u (must be power of 2)."), d);
|
|
|
|
|
}
|
2013-10-29 21:34:20 +08:00
|
|
|
target_dcache_invalidate ();
|
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* NEWS: Mention dcache configuration.
* dcache.c (dcache_set_list, dcache_show_list): New variables.
(dcache_size, dcache_line_size): New variables.
(LINE_SIZE_MASK, XFORM, MASK): Adjust.
(struct dcache_block): Make it expandable.
(struct dcache_struct): New field.
(dcache_invalidate): Discard freelist upon dcache_line_size changes.
(dcache_hit, dcache_alloc, dcache_peek_byte): Adjust.
(dcache_poke_byte, dcache_print_line): Adjust.
(set_dcache_size, set_dcache_line_size): New functions.
(set_dcache_command, show_dcache_command): New functions.
(_initialize_dcache): Add new commands.
doc/ChangeLog:
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* gdb.texinfo (Caching Remote Data): Document {set,show} dcache
size and line-size.
2011-07-26 23:24:02 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
set_dcache_command (char *arg, int from_tty)
|
|
|
|
|
{
|
|
|
|
|
printf_unfiltered (
|
|
|
|
|
"\"set dcache\" must be followed by the name of a subcommand.\n");
|
|
|
|
|
help_list (dcache_set_list, "set dcache ", -1, gdb_stdout);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
show_dcache_command (char *args, int from_tty)
|
|
|
|
|
{
|
|
|
|
|
cmd_show_list (dcache_show_list, from_tty, "");
|
|
|
|
|
}
|
|
|
|
|
|
1999-04-16 09:35:26 +08:00
|
|
|
void
|
2000-07-30 09:48:28 +08:00
|
|
|
_initialize_dcache (void)
|
1999-04-16 09:35:26 +08:00
|
|
|
{
|
2005-02-18 Andrew Cagney <cagney@gnu.org>
Use add_setshow_boolean_command through out. Delete #ifdef 0'ed
code adding set/show boolean commands.
* cp-valprint.c, dcache.c, exec.c, gdbtypes.c, infrun.c: Update.
* monitor.c, p-valprint.c, pa64solib.c, printcmd.c: Update.
* proc-api.c, remote-mips.c, remote.c, solib.c: Update.
* somsolib.c, symfile.c, top.c, utils.c, valops.c: Update.
* valprint.c, win32-nat.c, wince.c, xcoffsolib.c: Update.
* cli/cli-cmds.c: Update.
2005-02-18 23:25:32 +08:00
|
|
|
add_setshow_boolean_cmd ("remotecache", class_support,
|
|
|
|
|
&dcache_enabled_p, _("\
|
|
|
|
|
Set cache use for remote targets."), _("\
|
|
|
|
|
Show cache use for remote targets."), _("\
|
2009-09-01 04:18:46 +08:00
|
|
|
This used to enable the data cache for remote targets. The cache\n\
|
|
|
|
|
functionality is now controlled by the memory region system and the\n\
|
|
|
|
|
\"stack-cache\" flag; \"remotecache\" now does nothing and\n\
|
|
|
|
|
exists only for compatibility reasons."),
|
2005-02-18 Andrew Cagney <cagney@gnu.org>
Use add_setshow_boolean_command through out. Delete #ifdef 0'ed
code adding set/show boolean commands.
* cp-valprint.c, dcache.c, exec.c, gdbtypes.c, infrun.c: Update.
* monitor.c, p-valprint.c, pa64solib.c, printcmd.c: Update.
* proc-api.c, remote-mips.c, remote.c, solib.c: Update.
* somsolib.c, symfile.c, top.c, utils.c, valops.c: Update.
* valprint.c, win32-nat.c, wince.c, xcoffsolib.c: Update.
* cli/cli-cmds.c: Update.
2005-02-18 23:25:32 +08:00
|
|
|
NULL,
|
2005-02-24 Andrew Cagney <cagney@gnu.org>
Add show_VARIABLE functions, update add_setshow call.
* varobj.c (_initialize_varobj, show_varobjdebug): Add and update.
* valprint.c (_initialize_valprint, show_print_max)
(show_stop_print_at_null, show_repeat_count_threshold)
(show_prettyprint_structs, show_unionprint)
(show_prettyprint_arrays, show_addressprint, show_input_radix)
(show_output_radix): Ditto.
* valops.c (_initialize_valops, show_overload_resolution): Ditto.
* utils.c (initialize_utils, show_chars_per_line)
(show_lines_per_page, show_demangle, show_pagination_enabled)
(show_sevenbit_strings, show_asm_demangle): Ditto
* tui/tui-win.c (_initialize_tui_win, show_tui_border_kind)
(show_tui_border_mode, show_tui_active_border_mode): Ditto.
* top.c (init_main, show_new_async_prompt)
(show_async_command_editing_p, show_write_history_p)
(show_history_size, show_history_filename, show_caution)
(show_annotation_level, init_main): Ditto.
* target.c (initialize_targets, show_targetdebug)
(show_trust_readonly): Ditto.
* symfile.c (_initialize_symfile, show_symbol_reloading)
(show_ext_args, show_download_write_size)
(show_debug_file_directory): Ditto.
* source.c (_initialize_source, show_lines_to_list): Ditto.
* solib.c (_initialize_solib, show_auto_solib_add)
(show_solib_search_path): Ditto.
* p-valprint.c (_initialize_pascal_valprint)
(show_pascal_static_field_print): Ditto.
* printcmd.c (_initialize_printcmd, show_max_symbolic_offset)
(show_print_symbol_filename): Add and update.
* parse.c (_initialize_parse, show_expressiondebug): Dito.
* observer.c (_initialize_observer, show_observer_debug): Dito.
* maint.c (_initialize_maint_cmds, show_watchdog)
(show_maintenance_profile_p): Dito.
* linux-nat.c (_initialize_linux_nat, show_debug_linux_nat): Dito.
* infrun.c (_initialize_infrun, show_debug_infrun)
(show_stop_on_solib_events, show_follow_fork_mode_string)
(show_scheduler_mode, show_step_stop_if_no_debug): Ditto.
* infcall.c (_initialize_infcall, show_coerce_float_to_double_p)
(show_unwind_on_signal_p): Ditto.
* gdbtypes.c (build_gdbtypes, show_opaque_type_resolution)
(_initialize_gdbtypes, show_overload_debug): Ditto.
* gdb-events.c, gdb-events.sh (_initialize_gdb_events)
(show_gdb_events_debug): Ditto.
* gdbarch.c, gdbarch.sh (show_gdbarch_debug)
(_initialize_gdbarch): Ditto.
* frame.c (_initialize_frame, show_backtrace_past_main)
(show_backtrace_past_entry, show_backtrace_limit)
(show_frame_debug): Ditto.
* exec.c (_initialize_exec, show_write_files): Ditto.
* dwarf2read.c (_initialize_dwarf2_read)
(show_dwarf2_max_cache_age): Ditto.
* demangle.c (_initialize_demangler)
(show_demangling_style_names): Ditto.
* dcache.c (_initialize_dcache, show_dcache_enabled_p): Ditto.
* cp-valprint.c (show_static_field_print)
(_initialize_cp_valprint, show_vtblprint, show_objectprint): Ditto.
* corefile.c (_initialize_core, show_gnutarget_string): Ditto.
* cli/cli-logging.c (_initialize_cli_logging)
(show_logging_overwrite, show_logging_redirect)
(show_logging_filename): Ditto.
* cli/cli-cmds.c (show_info_verbose, show_history_expansion_p)
(init_cli_cmds, show_baud_rate, show_remote_debug)
(show_remote_timeout, show_max_user_call_depth): Ditto.
* charset.c (show_host_charset_name, show_target_charset_name)
(initialize_charset): Ditto.
* breakpoint.c (show_can_use_hw_watchpoints)
(show_pending_break_support, _initialize_breakpoint): Ditto.
2005-02-24 21:51:36 +08:00
|
|
|
show_dcache_enabled_p,
|
2005-02-18 Andrew Cagney <cagney@gnu.org>
Use add_setshow_boolean_command through out. Delete #ifdef 0'ed
code adding set/show boolean commands.
* cp-valprint.c, dcache.c, exec.c, gdbtypes.c, infrun.c: Update.
* monitor.c, p-valprint.c, pa64solib.c, printcmd.c: Update.
* proc-api.c, remote-mips.c, remote.c, solib.c: Update.
* somsolib.c, symfile.c, top.c, utils.c, valops.c: Update.
* valprint.c, win32-nat.c, wince.c, xcoffsolib.c: Update.
* cli/cli-cmds.c: Update.
2005-02-18 23:25:32 +08:00
|
|
|
&setlist, &showlist);
|
1999-04-16 09:35:26 +08:00
|
|
|
|
|
|
|
|
add_info ("dcache", dcache_info,
|
2008-09-24 02:35:32 +08:00
|
|
|
_("\
|
|
|
|
|
Print information on the dcache performance.\n\
|
2009-08-21 06:30:12 +08:00
|
|
|
With no arguments, this command prints the cache configuration and a\n\
|
|
|
|
|
summary of each line in the cache. Use \"info dcache <lineno> to dump\"\n\
|
|
|
|
|
the contents of a given line."));
|
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* NEWS: Mention dcache configuration.
* dcache.c (dcache_set_list, dcache_show_list): New variables.
(dcache_size, dcache_line_size): New variables.
(LINE_SIZE_MASK, XFORM, MASK): Adjust.
(struct dcache_block): Make it expandable.
(struct dcache_struct): New field.
(dcache_invalidate): Discard freelist upon dcache_line_size changes.
(dcache_hit, dcache_alloc, dcache_peek_byte): Adjust.
(dcache_poke_byte, dcache_print_line): Adjust.
(set_dcache_size, set_dcache_line_size): New functions.
(set_dcache_command, show_dcache_command): New functions.
(_initialize_dcache): Add new commands.
doc/ChangeLog:
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* gdb.texinfo (Caching Remote Data): Document {set,show} dcache
size and line-size.
2011-07-26 23:24:02 +08:00
|
|
|
|
|
|
|
|
add_prefix_cmd ("dcache", class_obscure, set_dcache_command, _("\
|
|
|
|
|
Use this command to set number of lines in dcache and line-size."),
|
|
|
|
|
&dcache_set_list, "set dcache ", /*allow_unknown*/0, &setlist);
|
|
|
|
|
add_prefix_cmd ("dcache", class_obscure, show_dcache_command, _("\
|
|
|
|
|
Show dcachesettings."),
|
|
|
|
|
&dcache_show_list, "show dcache ", /*allow_unknown*/0, &showlist);
|
|
|
|
|
|
2013-03-27 03:16:05 +08:00
|
|
|
add_setshow_zuinteger_cmd ("line-size", class_obscure,
|
|
|
|
|
&dcache_line_size, _("\
|
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* NEWS: Mention dcache configuration.
* dcache.c (dcache_set_list, dcache_show_list): New variables.
(dcache_size, dcache_line_size): New variables.
(LINE_SIZE_MASK, XFORM, MASK): Adjust.
(struct dcache_block): Make it expandable.
(struct dcache_struct): New field.
(dcache_invalidate): Discard freelist upon dcache_line_size changes.
(dcache_hit, dcache_alloc, dcache_peek_byte): Adjust.
(dcache_poke_byte, dcache_print_line): Adjust.
(set_dcache_size, set_dcache_line_size): New functions.
(set_dcache_command, show_dcache_command): New functions.
(_initialize_dcache): Add new commands.
doc/ChangeLog:
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* gdb.texinfo (Caching Remote Data): Document {set,show} dcache
size and line-size.
2011-07-26 23:24:02 +08:00
|
|
|
Set dcache line size in bytes (must be power of 2)."), _("\
|
|
|
|
|
Show dcache line size."),
|
2013-03-27 03:16:05 +08:00
|
|
|
NULL,
|
|
|
|
|
set_dcache_line_size,
|
|
|
|
|
NULL,
|
|
|
|
|
&dcache_set_list, &dcache_show_list);
|
|
|
|
|
add_setshow_zuinteger_cmd ("size", class_obscure,
|
|
|
|
|
&dcache_size, _("\
|
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* NEWS: Mention dcache configuration.
* dcache.c (dcache_set_list, dcache_show_list): New variables.
(dcache_size, dcache_line_size): New variables.
(LINE_SIZE_MASK, XFORM, MASK): Adjust.
(struct dcache_block): Make it expandable.
(struct dcache_struct): New field.
(dcache_invalidate): Discard freelist upon dcache_line_size changes.
(dcache_hit, dcache_alloc, dcache_peek_byte): Adjust.
(dcache_poke_byte, dcache_print_line): Adjust.
(set_dcache_size, set_dcache_line_size): New functions.
(set_dcache_command, show_dcache_command): New functions.
(_initialize_dcache): Add new commands.
doc/ChangeLog:
2011-07-26 Paul Pluzhnikov <ppluzhnikov@google.com>
* gdb.texinfo (Caching Remote Data): Document {set,show} dcache
size and line-size.
2011-07-26 23:24:02 +08:00
|
|
|
Set number of dcache lines."), _("\
|
|
|
|
|
Show number of dcache lines."),
|
2013-03-27 03:16:05 +08:00
|
|
|
NULL,
|
|
|
|
|
set_dcache_size,
|
|
|
|
|
NULL,
|
|
|
|
|
&dcache_set_list, &dcache_show_list);
|
1999-04-16 09:35:26 +08:00
|
|
|
}
|
