mirror of
https://sourceware.org/git/binutils-gdb.git
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197e01b6dc
* arm-tdep.c: * ia64-tdep.c: * i386-tdep.c: * hpread.c: * hppa-tdep.c: * hppa-hpux-tdep.c: * gnu-nat.c: * gdbtypes.c: * gdbarch.h: * gdbarch.c: * eval.c: * dwarf2read.c: * dbxread.c: * copying: * symfile.c: * stabsread.c: * sh64-tdep.c: * sh-tdep.c: * s390-tdep.c: * rs6000-tdep.c: * remote.c: * remote-mips.c: * mips-tdep.c: * mdebugread.c: * linux-nat.c: * infrun.c: * xcoffread.c: * win32-nat.c: * valops.c: * utils.c: * tracepoint.c: * target.c: * symtab.c: * c-exp.y: * ada-valprint.c: * ada-typeprint.c: * ada-lex.l: * ada-lang.h: * ada-lang.c: * ada-exp.y: * alphafbsd-tdep.c: * alphabsd-tdep.h: * alphabsd-tdep.c: * alphabsd-nat.c: * alpha-tdep.h: * alpha-tdep.c: * alpha-osf1-tdep.c: * alpha-nat.c: * alpha-mdebug-tdep.c: * alpha-linux-tdep.c: * alpha-linux-nat.c: * aix-thread.c: * abug-rom.c: * arch-utils.c: * annotate.h: * annotate.c: * amd64obsd-tdep.c: * amd64obsd-nat.c: * amd64nbsd-tdep.c: * amd64nbsd-nat.c: * amd64fbsd-tdep.c: * amd64fbsd-nat.c: * amd64bsd-nat.c: * amd64-tdep.h: * amd64-tdep.c: * amd64-sol2-tdep.c: * amd64-nat.h: * amd64-nat.c: * amd64-linux-tdep.c: * amd64-linux-nat.c: * alphanbsd-tdep.c: * block.h: * block.c: * bfd-target.h: * bfd-target.c: * bcache.h: * bcache.c: * ax.h: * ax-general.c: * ax-gdb.h: * ax-gdb.c: * avr-tdep.c: * auxv.h: * auxv.c: * armnbsd-tdep.c: * armnbsd-nat.c: * arm-tdep.h: * arm-linux-nat.c: * arch-utils.h: * charset.c: * call-cmds.h: * c-valprint.c: * c-typeprint.c: * c-lang.h: * c-lang.c: * buildsym.h: * buildsym.c: * bsd-uthread.h: * bsd-uthread.c: * bsd-kvm.h: * bsd-kvm.c: * breakpoint.h: * core-regset.c: * core-aout.c: * completer.h: * completer.c: * complaints.h: * complaints.c: * command.h: * coffread.c: * coff-solib.h: * coff-solib.c: * coff-pe-read.h: * coff-pe-read.c: * cli-out.h: * cli-out.c: * charset.h: * dink32-rom.c: * dictionary.h: * dictionary.c: * demangle.c: * defs.h: * dcache.h: * dcache.c: * d10v-tdep.c: * cpu32bug-rom.c: * cp-valprint.c: * cp-support.h: * cp-support.c: * cp-namespace.c: * cp-abi.h: * cp-abi.c: * corelow.c: * corefile.c: * environ.c: * elfread.c: * dwarfread.c: * dwarf2loc.c: * dwarf2expr.h: * dwarf2expr.c: * dwarf2-frame.h: * dwarf2-frame.c: * dve3900-rom.c: * dummy-frame.h: * dummy-frame.c: * dsrec.c: * doublest.h: * doublest.c: * disasm.h: * disasm.c: * fork-child.c: * findvar.c: * fbsd-nat.h: * fbsd-nat.c: * f-valprint.c: * f-typeprint.c: * f-lang.h: * f-lang.c: * expression.h: * expprint.c: * exec.h: * exec.c: * exceptions.h: * exceptions.c: * event-top.h: * event-top.c: * event-loop.h: * event-loop.c: * gdb.c: * gdb-stabs.h: * gdb-events.h: * gdb-events.c: * gcore.c: * frv-tdep.h: * frv-tdep.c: * frv-linux-tdep.c: * frame.h: * frame.c: * frame-unwind.h: * frame-unwind.c: * frame-base.h: * frame-base.c: * gdb_vfork.h: * gdb_thread_db.h: * gdb_string.h: * gdb_stat.h: * gdb_regex.h: * gdb_ptrace.h: * gdb_proc_service.h: * gdb_obstack.h: * gdb_locale.h: * gdb_dirent.h: * gdb_curses.h: * gdb_assert.h: * gdbarch.sh: * gdb.h: * hpux-thread.c: * hppabsd-nat.c: * hppa-tdep.h: * hpacc-abi.c: * h8300-tdep.c: * gregset.h: * go32-nat.c: * gnu-v3-abi.c: * gnu-v2-abi.h: * gnu-v2-abi.c: * gnu-nat.h: * glibc-tdep.c: * gdbtypes.h: * gdbcore.h: * gdbcmd.h: * i386nbsd-tdep.c: * i386nbsd-nat.c: * i386gnu-tdep.c: * i386gnu-nat.c: * i386fbsd-tdep.c: * i386fbsd-nat.c: * i386bsd-tdep.c: * i386bsd-nat.h: * i386bsd-nat.c: * i386-tdep.h: * i386-sol2-nat.c: * i386-nto-tdep.c: * i386-nat.c: * i386-linux-tdep.h: * i386-linux-tdep.c: * i386-linux-nat.c: * i386-cygwin-tdep.c: * inf-ttrace.c: * inf-ptrace.h: * inf-ptrace.c: * inf-loop.h: * inf-loop.c: * inf-child.h: * inf-child.c: * ia64-tdep.h: * ia64-linux-nat.c: * i387-tdep.h: * i387-tdep.c: * i386v4-nat.c: * i386v-nat.c: * i386obsd-tdep.c: * i386obsd-nat.c: * kod.c: * jv-valprint.c: * jv-typeprint.c: * jv-lang.h: * jv-lang.c: * irix5-nat.c: * iq2000-tdep.c: * interps.h: * interps.c: * inftarg.c: * inflow.h: * inflow.c: * inferior.h: * infcmd.c: * infcall.h: * infcall.c: * inf-ttrace.h: * m32r-tdep.h: * m32r-tdep.c: * m32r-rom.c: * m32r-linux-tdep.c: * m32r-linux-nat.c: * m2-valprint.c: * m2-typeprint.c: * m2-lang.h: * m2-lang.c: * lynx-nat.c: * linux-thread-db.c: * linux-nat.h: * linespec.c: * libunwind-frame.h: * libunwind-frame.c: * language.h: * language.c: * macroexp.c: * macrocmd.c: * m88kbsd-nat.c: * m88k-tdep.h: * m88k-tdep.c: * m68klinux-tdep.c: * m68klinux-nat.c: * m68kbsd-tdep.c: * m68kbsd-nat.c: * m68k-tdep.h: * m68k-tdep.c: * mips-linux-nat.c: * mips-irix-tdep.c: * minsyms.c: * memattr.h: * memattr.c: * mem-break.c: * mdebugread.h: * main.h: * main.c: * macrotab.h: * macrotab.c: * macroscope.h: * macroscope.c: * macroexp.h: * nbsd-tdep.c: * mt-tdep.c: * monitor.h: * monitor.c: * mn10300-tdep.h: * mn10300-tdep.c: * mn10300-linux-tdep.c: * mipsv4-nat.c: * mipsread.c: * mipsnbsd-tdep.h: * mipsnbsd-tdep.c: * mipsnbsd-nat.c: * mips64obsd-tdep.c: * mips64obsd-nat.c: * mips-tdep.h: * mips-mdebug-tdep.c: * mips-linux-tdep.c: * osabi.h: * osabi.c: * ocd.h: * ocd.c: * observer.c: * objfiles.h: * objfiles.c: * objc-lang.h: * objc-lang.c: * objc-exp.y: * nto-tdep.h: * nto-tdep.c: * nto-procfs.c: * nlmread.c: * nbsd-tdep.h: * ppcobsd-tdep.c: * ppcobsd-nat.c: * ppcnbsd-tdep.h: * ppcnbsd-tdep.c: * ppcnbsd-nat.c: * ppcbug-rom.c: * ppc-tdep.h: * ppc-sysv-tdep.c: * ppc-linux-tdep.c: * ppc-linux-nat.c: * ppc-bdm.c: * parser-defs.h: * parse.c: * p-valprint.c: * p-typeprint.c: * p-lang.h: * p-lang.c: * remote-fileio.h: * remote-fileio.c: * remote-est.c: * remote-e7000.c: * regset.h: * regset.c: * reggroups.h: * reggroups.c: * regcache.h: * regcache.c: * proc-why.c: * proc-service.c: * proc-events.c: * printcmd.c: * ppcobsd-tdep.h: * sentinel-frame.h: * sentinel-frame.c: * scm-valprint.c: * scm-tags.h: * scm-lang.h: * scm-lang.c: * scm-exp.c: * s390-tdep.h: * rom68k-rom.c: * remote.h: * remote-utils.c: * remote-st.c: * remote-sim.c: * remote-sds.c: * remote-rdp.c: * remote-rdi.c: * remote-hms.c: * sim-regno.h: * shnbsd-tdep.h: * shnbsd-tdep.c: * shnbsd-nat.c: * sh-tdep.h: * serial.h: * serial.c: * ser-unix.h: * ser-unix.c: * ser-tcp.c: * ser-pipe.c: * ser-go32.c: * ser-e7kpc.c: * ser-base.h: * ser-base.c: * solib.c: * solib-svr4.h: * solib-svr4.c: * solib-sunos.c: * solib-som.h: * solib-som.c: * solib-pa64.h: * solib-pa64.c: * solib-osf.c: * solib-null.c: * solib-legacy.c: * solib-irix.c: * solib-frv.c: * solib-aix5.c: * sol-thread.c: * sparc64-linux-tdep.c: * sparc64-linux-nat.c: * sparc-tdep.h: * sparc-tdep.c: * sparc-sol2-tdep.c: * sparc-sol2-nat.c: * sparc-nat.h: * sparc-nat.c: * sparc-linux-tdep.c: * sparc-linux-nat.c: * source.h: * source.c: * somread.c: * solist.h: * solib.h: * std-regs.c: * stack.h: * stack.c: * stabsread.h: * sparcobsd-tdep.c: * sparcnbsd-tdep.c: * sparcnbsd-nat.c: * sparc64obsd-tdep.c: * sparc64nbsd-tdep.c: * sparc64nbsd-nat.c: * sparc64fbsd-tdep.c: * sparc64fbsd-nat.c: * sparc64-tdep.h: * sparc64-tdep.c: * sparc64-sol2-tdep.c: * sparc64-nat.c: * ui-file.c: * typeprint.h: * typeprint.c: * tramp-frame.h: * tramp-frame.c: * trad-frame.h: * trad-frame.c: * tracepoint.h: * top.c: * tobs.inc: * thread.c: * terminal.h: * target.h: * symfile.h: * stop-gdb.c: * vaxbsd-nat.c: * vax-tdep.h: * vax-tdep.c: * vax-nat.c: * varobj.h: * varobj.c: * value.h: * value.c: * valprint.h: * valprint.c: * v850-tdep.c: * uw-thread.c: * user-regs.c: * ui-out.h: * ui-out.c: * ui-file.h: * xcoffsolib.h: * xcoffsolib.c: * wrapper.c: * wince.c: * wince-stub.h: * wince-stub.c: * vaxobsd-tdep.c: * vaxnbsd-tdep.c: * gdb_gcore.sh: * copying.c: * configure.ac: * aclocal.m4: * acinclude.m4: * reply_mig_hack.awk: * observer.sh: * gdb_mbuild.sh: * arm-linux-tdep.c: * blockframe.c: * dbug-rom.c: * environ.h: * dwarf2loc.h: * gdb-events.sh: * glibc-tdep.h: * gdb_wait.h: * gdbthread.h: * i386-sol2-tdep.c: * hppabsd-tdep.c: * hppa-linux-nat.c: * hppa-hpux-nat.c: * ia64-linux-tdep.c: * infptrace.c: * linespec.h: * maint.c: * mips-mdebug-tdep.h: * remote-m32r-sdi.c: * s390-nat.c: * rs6000-nat.c: * remote-utils.h: * sh3-rom.c: * sh-linux-tdep.c: * top.h: * symtab.h: * symmisc.c: * symfile-mem.c: * srec.h: * user-regs.h: * version.h: * valarith.c: * xstormy16-tdep.c: * wrapper.h: * Makefile.in: * f-exp.y: * cris-tdep.c: * cp-name-parser.y: * procfs.c: * proc-utils.h: * proc-flags.c: * proc-api.c: * p-exp.y: * m68hc11-tdep.c: * m2-exp.y: * kod.h: * kod-cisco.c: * jv-exp.y: * hppa-linux-tdep.c: Add (c) after Copyright. Update the FSF address.
281 lines
8.6 KiB
C
281 lines
8.6 KiB
C
/* C preprocessor macro expansion commands for GDB.
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Copyright (C) 2002 Free Software Foundation, Inc.
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Contributed by Red Hat, Inc.
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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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the Free Software Foundation; either version 2 of the License, or
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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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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA. */
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#include "defs.h"
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#include "macrotab.h"
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#include "macroexp.h"
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#include "macroscope.h"
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#include "command.h"
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#include "gdbcmd.h"
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/* The `macro' prefix command. */
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static struct cmd_list_element *macrolist;
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static void
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macro_command (char *arg, int from_tty)
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{
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printf_unfiltered
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("\"macro\" must be followed by the name of a macro command.\n");
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help_list (macrolist, "macro ", -1, gdb_stdout);
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}
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/* Macro expansion commands. */
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static void
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macro_expand_command (char *exp, int from_tty)
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{
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struct macro_scope *ms = NULL;
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char *expanded = NULL;
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struct cleanup *cleanup_chain = make_cleanup (free_current_contents, &ms);
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make_cleanup (free_current_contents, &expanded);
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/* You know, when the user doesn't specify any expression, it would be
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really cool if this defaulted to the last expression evaluated.
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Then it would be easy to ask, "Hey, what did I just evaluate?" But
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at the moment, the `print' commands don't save the last expression
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evaluated, just its value. */
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if (! exp || ! *exp)
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error (_("You must follow the `macro expand' command with the"
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" expression you\n"
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"want to expand."));
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ms = default_macro_scope ();
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if (ms)
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{
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expanded = macro_expand (exp, standard_macro_lookup, ms);
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fputs_filtered ("expands to: ", gdb_stdout);
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fputs_filtered (expanded, gdb_stdout);
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fputs_filtered ("\n", gdb_stdout);
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}
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else
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fputs_filtered ("GDB has no preprocessor macro information for "
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"that code.\n",
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gdb_stdout);
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do_cleanups (cleanup_chain);
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return;
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}
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static void
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macro_expand_once_command (char *exp, int from_tty)
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{
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struct macro_scope *ms = NULL;
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char *expanded = NULL;
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struct cleanup *cleanup_chain = make_cleanup (free_current_contents, &ms);
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make_cleanup (free_current_contents, &expanded);
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/* You know, when the user doesn't specify any expression, it would be
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really cool if this defaulted to the last expression evaluated.
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And it should set the once-expanded text as the new `last
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expression'. That way, you could just hit return over and over and
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see the expression expanded one level at a time. */
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if (! exp || ! *exp)
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error (_("You must follow the `macro expand-once' command with"
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" the expression\n"
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"you want to expand."));
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ms = default_macro_scope ();
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if (ms)
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{
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expanded = macro_expand_once (exp, standard_macro_lookup, ms);
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fputs_filtered ("expands to: ", gdb_stdout);
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fputs_filtered (expanded, gdb_stdout);
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fputs_filtered ("\n", gdb_stdout);
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}
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else
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fputs_filtered ("GDB has no preprocessor macro information for "
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"that code.\n",
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gdb_stdout);
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do_cleanups (cleanup_chain);
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return;
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}
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static void
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show_pp_source_pos (struct ui_file *stream,
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struct macro_source_file *file,
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int line)
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{
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fprintf_filtered (stream, "%s:%d\n", file->filename, line);
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while (file->included_by)
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{
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fprintf_filtered (gdb_stdout, " included at %s:%d\n",
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file->included_by->filename,
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file->included_at_line);
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file = file->included_by;
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}
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}
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static void
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info_macro_command (char *name, int from_tty)
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{
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struct macro_scope *ms = NULL;
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struct cleanup *cleanup_chain = make_cleanup (free_current_contents, &ms);
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struct macro_definition *d;
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if (! name || ! *name)
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error (_("You must follow the `info macro' command with the name"
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" of the macro\n"
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"whose definition you want to see."));
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ms = default_macro_scope ();
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if (! ms)
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error (_("GDB has no preprocessor macro information for that code."));
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d = macro_lookup_definition (ms->file, ms->line, name);
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if (d)
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{
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int line;
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struct macro_source_file *file
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= macro_definition_location (ms->file, ms->line, name, &line);
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fprintf_filtered (gdb_stdout, "Defined at ");
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show_pp_source_pos (gdb_stdout, file, line);
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fprintf_filtered (gdb_stdout, "#define %s", name);
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if (d->kind == macro_function_like)
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{
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int i;
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fputs_filtered ("(", gdb_stdout);
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for (i = 0; i < d->argc; i++)
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{
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fputs_filtered (d->argv[i], gdb_stdout);
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if (i + 1 < d->argc)
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fputs_filtered (", ", gdb_stdout);
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}
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fputs_filtered (")", gdb_stdout);
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}
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fprintf_filtered (gdb_stdout, " %s\n", d->replacement);
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}
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else
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{
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fprintf_filtered (gdb_stdout,
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"The symbol `%s' has no definition as a C/C++"
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" preprocessor macro\n"
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"at ", name);
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show_pp_source_pos (gdb_stdout, ms->file, ms->line);
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}
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do_cleanups (cleanup_chain);
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}
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/* User-defined macros. */
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/* A table of user-defined macros. Unlike the macro tables used for
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symtabs, this one uses xmalloc for all its allocation, not an
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obstack, and it doesn't bcache anything; it just xmallocs things. So
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it's perfectly possible to remove things from this, or redefine
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things. */
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static struct macro_table *user_macros;
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static void
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macro_define_command (char *exp, int from_tty)
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{
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error (_("Command not implemented yet."));
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}
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static void
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macro_undef_command (char *exp, int from_tty)
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{
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error (_("Command not implemented yet."));
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}
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static void
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macro_list_command (char *exp, int from_tty)
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{
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error (_("Command not implemented yet."));
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}
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/* Initializing the `macrocmd' module. */
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extern initialize_file_ftype _initialize_macrocmd; /* -Wmissing-prototypes */
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void
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_initialize_macrocmd (void)
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{
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struct cmd_list_element *c;
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/* We introduce a new command prefix, `macro', under which we'll put
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the various commands for working with preprocessor macros. */
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add_prefix_cmd ("macro", class_info, macro_command,
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_("Prefix for commands dealing with C preprocessor macros."),
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¯olist, "macro ", 0, &cmdlist);
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add_cmd ("expand", no_class, macro_expand_command, _("\
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Fully expand any C/C++ preprocessor macro invocations in EXPRESSION.\n\
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Show the expanded expression."),
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¯olist);
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add_alias_cmd ("exp", "expand", no_class, 1, ¯olist);
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add_cmd ("expand-once", no_class, macro_expand_once_command, _("\
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Expand C/C++ preprocessor macro invocations appearing directly in EXPRESSION.\n\
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Show the expanded expression.\n\
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\n\
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This command differs from `macro expand' in that it only expands macro\n\
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invocations that appear directly in EXPRESSION; if expanding a macro\n\
|
||
introduces further macro invocations, those are left unexpanded.\n\
|
||
\n\
|
||
`macro expand-once' helps you see how a particular macro expands,\n\
|
||
whereas `macro expand' shows you how all the macros involved in an\n\
|
||
expression work together to yield a pre-processed expression."),
|
||
¯olist);
|
||
add_alias_cmd ("exp1", "expand-once", no_class, 1, ¯olist);
|
||
|
||
add_cmd ("macro", no_class, info_macro_command,
|
||
_("Show the definition of MACRO, and its source location."),
|
||
&infolist);
|
||
|
||
add_cmd ("define", no_class, macro_define_command, _("\
|
||
Define a new C/C++ preprocessor macro.\n\
|
||
The GDB command `macro define DEFINITION' is equivalent to placing a\n\
|
||
preprocessor directive of the form `#define DEFINITION' such that the\n\
|
||
definition is visible in all the inferior's source files.\n\
|
||
For example:\n\
|
||
(gdb) macro define PI (3.1415926)\n\
|
||
(gdb) macro define MIN(x,y) ((x) < (y) ? (x) : (y))"),
|
||
¯olist);
|
||
|
||
add_cmd ("undef", no_class, macro_undef_command, _("\
|
||
Remove the definition of the C/C++ preprocessor macro with the given name."),
|
||
¯olist);
|
||
|
||
add_cmd ("list", no_class, macro_list_command,
|
||
_("List all the macros defined using the `macro define' command."),
|
||
¯olist);
|
||
|
||
user_macros = new_macro_table (0, 0);
|
||
}
|