mirror of
https://sourceware.org/git/binutils-gdb.git
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268a13a5a3
This is the next patch in the ongoing series to move gdbsever to the top level. This patch just renames the "common" directory. The idea is to do this move in two parts: first rename the directory (this patch), then move the directory to the top. This approach makes the patches a bit more tractable. I chose the name "gdbsupport" for the directory. However, as this patch was largely written by sed, we could pick a new name without too much difficulty. Tested by the buildbot. gdb/ChangeLog 2019-07-09 Tom Tromey <tom@tromey.com> * contrib/ari/gdb_ari.sh: Change common to gdbsupport. * configure: Rebuild. * configure.ac: Change common to gdbsupport. * gdbsupport: Rename from common. * acinclude.m4: Change common to gdbsupport. * Makefile.in (CONFIG_SRC_SUBDIR, COMMON_SFILES) (HFILES_NO_SRCDIR, stamp-version, ALLDEPFILES): Change common to gdbsupport. * aarch64-tdep.c, ada-lang.c, ada-lang.h, agent.c, alloc.c, amd64-darwin-tdep.c, amd64-dicos-tdep.c, amd64-fbsd-nat.c, amd64-fbsd-tdep.c, amd64-linux-nat.c, amd64-linux-tdep.c, amd64-nbsd-tdep.c, amd64-obsd-tdep.c, amd64-sol2-tdep.c, amd64-tdep.c, amd64-windows-tdep.c, arch-utils.c, arch/aarch64-insn.c, arch/aarch64.c, arch/aarch64.h, arch/amd64.c, arch/amd64.h, arch/arm-get-next-pcs.c, arch/arm-linux.c, arch/arm.c, arch/i386.c, arch/i386.h, arch/ppc-linux-common.c, arch/riscv.c, arch/riscv.h, arch/tic6x.c, arm-tdep.c, auto-load.c, auxv.c, ax-gdb.c, ax-general.c, ax.h, breakpoint.c, breakpoint.h, btrace.c, btrace.h, build-id.c, build-id.h, c-lang.h, charset.c, charset.h, cli/cli-cmds.c, cli/cli-cmds.h, cli/cli-decode.c, cli/cli-dump.c, cli/cli-option.h, cli/cli-script.c, coff-pe-read.c, command.h, compile/compile-c-support.c, compile/compile-c.h, compile/compile-cplus-symbols.c, compile/compile-cplus-types.c, compile/compile-cplus.h, compile/compile-loc2c.c, compile/compile.c, completer.c, completer.h, contrib/ari/gdb_ari.sh, corefile.c, corelow.c, cp-support.c, cp-support.h, cp-valprint.c, csky-tdep.c, ctf.c, darwin-nat.c, debug.c, defs.h, disasm-selftests.c, disasm.c, disasm.h, dtrace-probe.c, dwarf-index-cache.c, dwarf-index-cache.h, dwarf-index-write.c, dwarf2-frame.c, dwarf2expr.c, dwarf2loc.c, dwarf2read.c, event-loop.c, event-top.c, exceptions.c, exec.c, extension.h, fbsd-nat.c, features/aarch64-core.c, features/aarch64-fpu.c, features/aarch64-pauth.c, features/aarch64-sve.c, features/i386/32bit-avx.c, features/i386/32bit-avx512.c, features/i386/32bit-core.c, features/i386/32bit-linux.c, features/i386/32bit-mpx.c, features/i386/32bit-pkeys.c, features/i386/32bit-segments.c, features/i386/32bit-sse.c, features/i386/64bit-avx.c, features/i386/64bit-avx512.c, features/i386/64bit-core.c, features/i386/64bit-linux.c, features/i386/64bit-mpx.c, features/i386/64bit-pkeys.c, features/i386/64bit-segments.c, features/i386/64bit-sse.c, features/i386/x32-core.c, features/riscv/32bit-cpu.c, features/riscv/32bit-csr.c, features/riscv/32bit-fpu.c, features/riscv/64bit-cpu.c, features/riscv/64bit-csr.c, features/riscv/64bit-fpu.c, features/tic6x-c6xp.c, features/tic6x-core.c, features/tic6x-gp.c, filename-seen-cache.h, findcmd.c, findvar.c, fork-child.c, gcore.c, gdb_bfd.c, gdb_bfd.h, gdb_proc_service.h, gdb_regex.c, gdb_select.h, gdb_usleep.c, gdbarch-selftests.c, gdbthread.h, gdbtypes.h, gnu-nat.c, go32-nat.c, guile/guile.c, guile/scm-ports.c, guile/scm-safe-call.c, guile/scm-type.c, i386-fbsd-nat.c, i386-fbsd-tdep.c, i386-go32-tdep.c, i386-linux-nat.c, i386-linux-tdep.c, i386-tdep.c, i387-tdep.c, ia64-libunwind-tdep.c, ia64-linux-nat.c, inf-child.c, inf-ptrace.c, infcall.c, infcall.h, infcmd.c, inferior-iter.h, inferior.c, inferior.h, inflow.c, inflow.h, infrun.c, infrun.h, inline-frame.c, language.h, linespec.c, linux-fork.c, linux-nat.c, linux-tdep.c, linux-thread-db.c, location.c, machoread.c, macrotab.h, main.c, maint.c, maint.h, memattr.c, memrange.h, mi/mi-cmd-break.h, mi/mi-cmd-env.c, mi/mi-cmd-stack.c, mi/mi-cmd-var.c, mi/mi-interp.c, mi/mi-main.c, mi/mi-parse.h, minsyms.c, mips-linux-tdep.c, namespace.h, nat/aarch64-linux-hw-point.c, nat/aarch64-linux-hw-point.h, nat/aarch64-linux.c, nat/aarch64-sve-linux-ptrace.c, nat/amd64-linux-siginfo.c, nat/fork-inferior.c, nat/linux-btrace.c, nat/linux-btrace.h, nat/linux-namespaces.c, nat/linux-nat.h, nat/linux-osdata.c, nat/linux-personality.c, nat/linux-procfs.c, nat/linux-ptrace.c, nat/linux-ptrace.h, nat/linux-waitpid.c, nat/mips-linux-watch.c, nat/mips-linux-watch.h, nat/ppc-linux.c, nat/x86-dregs.c, nat/x86-dregs.h, nat/x86-linux-dregs.c, nat/x86-linux.c, nto-procfs.c, nto-tdep.c, objfile-flags.h, objfiles.c, objfiles.h, obsd-nat.c, observable.h, osdata.c, p-valprint.c, parse.c, parser-defs.h, ppc-linux-nat.c, printcmd.c, probe.c, proc-api.c, procfs.c, producer.c, progspace.h, psymtab.h, python/py-framefilter.c, python/py-inferior.c, python/py-ref.h, python/py-type.c, python/python.c, record-btrace.c, record-full.c, record.c, record.h, regcache-dump.c, regcache.c, regcache.h, remote-fileio.c, remote-fileio.h, remote-sim.c, remote.c, riscv-tdep.c, rs6000-aix-tdep.c, rust-exp.y, s12z-tdep.c, selftest-arch.c, ser-base.c, ser-event.c, ser-pipe.c, ser-tcp.c, ser-unix.c, skip.c, solib-aix.c, solib-target.c, solib.c, source-cache.c, source.c, source.h, sparc-nat.c, spu-linux-nat.c, stack.c, stap-probe.c, symfile-add-flags.h, symfile.c, symfile.h, symtab.c, symtab.h, target-descriptions.c, target-descriptions.h, target-memory.c, target.c, target.h, target/waitstatus.c, target/waitstatus.h, thread-iter.h, thread.c, tilegx-tdep.c, top.c, top.h, tracefile-tfile.c, tracefile.c, tracepoint.c, tracepoint.h, tui/tui-io.c, ui-file.c, ui-out.h, unittests/array-view-selftests.c, unittests/child-path-selftests.c, unittests/cli-utils-selftests.c, unittests/common-utils-selftests.c, unittests/copy_bitwise-selftests.c, unittests/environ-selftests.c, unittests/format_pieces-selftests.c, unittests/function-view-selftests.c, unittests/lookup_name_info-selftests.c, unittests/memory-map-selftests.c, unittests/memrange-selftests.c, unittests/mkdir-recursive-selftests.c, unittests/observable-selftests.c, unittests/offset-type-selftests.c, unittests/optional-selftests.c, unittests/parse-connection-spec-selftests.c, unittests/ptid-selftests.c, unittests/rsp-low-selftests.c, unittests/scoped_fd-selftests.c, unittests/scoped_mmap-selftests.c, unittests/scoped_restore-selftests.c, unittests/string_view-selftests.c, unittests/style-selftests.c, unittests/tracepoint-selftests.c, unittests/unpack-selftests.c, unittests/utils-selftests.c, unittests/xml-utils-selftests.c, utils.c, utils.h, valarith.c, valops.c, valprint.c, value.c, value.h, varobj.c, varobj.h, windows-nat.c, x86-linux-nat.c, xml-support.c, xml-support.h, xml-tdesc.h, xstormy16-tdep.c, xtensa-linux-nat.c, dwarf2read.h: Change common to gdbsupport. gdb/gdbserver/ChangeLog 2019-07-09 Tom Tromey <tom@tromey.com> * configure: Rebuild. * configure.ac: Change common to gdbsupport. * acinclude.m4: Change common to gdbsupport. * Makefile.in (SFILES, OBS, GDBREPLAY_OBS, IPA_OBJS) (version-generated.c, gdbsupport/%-ipa.o, gdbsupport/%.o): Change common to gdbsupport. * ax.c, event-loop.c, fork-child.c, gdb_proc_service.h, gdbreplay.c, gdbthread.h, hostio-errno.c, hostio.c, i387-fp.c, inferiors.c, inferiors.h, linux-aarch64-tdesc-selftest.c, linux-amd64-ipa.c, linux-i386-ipa.c, linux-low.c, linux-tic6x-low.c, linux-x86-low.c, linux-x86-tdesc-selftest.c, linux-x86-tdesc.c, lynx-i386-low.c, lynx-low.c, mem-break.h, nto-x86-low.c, regcache.c, regcache.h, remote-utils.c, server.c, server.h, spu-low.c, symbol.c, target.h, tdesc.c, tdesc.h, thread-db.c, tracepoint.c, win32-i386-low.c, win32-low.c: Change common to gdbsupport.
245 lines
6.2 KiB
C
245 lines
6.2 KiB
C
/* Cache of styled source file text
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Copyright (C) 2018-2019 Free Software Foundation, 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 3 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, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "source-cache.h"
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#include "gdbsupport/scoped_fd.h"
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#include "source.h"
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#include "cli/cli-style.h"
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#ifdef HAVE_SOURCE_HIGHLIGHT
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/* If Gnulib redirects 'open' and 'close' to its replacements
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'rpl_open' and 'rpl_close' via cpp macros, including <fstream>
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below with those macros in effect will cause unresolved externals
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when GDB is linked. Happens, e.g., in the MinGW build. */
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#undef open
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#undef close
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#include <fstream>
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#include <sstream>
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#include <srchilite/sourcehighlight.h>
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#include <srchilite/langmap.h>
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#endif
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/* The number of source files we'll cache. */
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#define MAX_ENTRIES 5
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/* See source-cache.h. */
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source_cache g_source_cache;
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/* See source-cache.h. */
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bool
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source_cache::get_plain_source_lines (struct symtab *s, int first_line,
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int last_line, std::string *lines)
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{
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scoped_fd desc (open_source_file_with_line_charpos (s));
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if (desc.get () < 0)
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return false;
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if (first_line < 1 || first_line > s->nlines || last_line < 1)
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return false;
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if (lseek (desc.get (), s->line_charpos[first_line - 1], SEEK_SET) < 0)
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perror_with_name (symtab_to_filename_for_display (s));
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int last_charpos;
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if (last_line >= s->nlines)
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{
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struct stat st;
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if (fstat (desc.get (), &st) < 0)
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perror_with_name (symtab_to_filename_for_display (s));
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/* We could cache this in line_charpos... */
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last_charpos = st.st_size;
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}
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else
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last_charpos = s->line_charpos[last_line];
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lines->resize (last_charpos - s->line_charpos[first_line - 1]);
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if (myread (desc.get (), &(*lines)[0], lines->size ()) < 0)
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perror_with_name (symtab_to_filename_for_display (s));
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return true;
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}
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/* See source-cache.h. */
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std::string
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source_cache::extract_lines (const struct source_text &text, int first_line,
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int last_line)
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{
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int lineno = 1;
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std::string::size_type pos = 0;
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std::string::size_type first_pos = std::string::npos;
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while (pos != std::string::npos && lineno <= last_line)
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{
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std::string::size_type new_pos = text.contents.find ('\n', pos);
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if (lineno == first_line)
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first_pos = pos;
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pos = new_pos;
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if (lineno == last_line || pos == std::string::npos)
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{
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if (first_pos == std::string::npos)
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return {};
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if (pos == std::string::npos)
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pos = text.contents.size ();
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return text.contents.substr (first_pos, pos - first_pos);
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}
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++lineno;
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++pos;
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}
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return {};
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}
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#ifdef HAVE_SOURCE_HIGHLIGHT
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/* Return the Source Highlight language name, given a gdb language
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LANG. Returns NULL if the language is not known. */
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static const char *
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get_language_name (enum language lang)
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{
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switch (lang)
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{
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case language_c:
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case language_objc:
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return "c.lang";
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case language_cplus:
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return "cpp.lang";
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case language_d:
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return "d.lang";
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case language_go:
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return "go.lang";
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case language_fortran:
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return "fortran.lang";
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case language_m2:
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/* Not handled by Source Highlight. */
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break;
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case language_asm:
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return "asm.lang";
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case language_pascal:
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return "pascal.lang";
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case language_opencl:
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/* Not handled by Source Highlight. */
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break;
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case language_rust:
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/* Not handled by Source Highlight. */
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break;
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case language_ada:
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return "ada.lang";
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default:
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break;
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}
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return nullptr;
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}
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#endif /* HAVE_SOURCE_HIGHLIGHT */
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/* See source-cache.h. */
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bool
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source_cache::get_source_lines (struct symtab *s, int first_line,
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int last_line, std::string *lines)
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{
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if (first_line < 1 || last_line < 1 || first_line > last_line)
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return false;
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#ifdef HAVE_SOURCE_HIGHLIGHT
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if (source_styling && gdb_stdout->can_emit_style_escape ())
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{
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const char *fullname = symtab_to_fullname (s);
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for (const auto &item : m_source_map)
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{
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if (item.fullname == fullname)
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{
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*lines = extract_lines (item, first_line, last_line);
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return true;
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}
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}
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const char *lang_name = get_language_name (SYMTAB_LANGUAGE (s));
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if (lang_name != nullptr)
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{
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std::ifstream input (fullname);
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if (input.is_open ())
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{
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/* The global source highlight object, or null if one
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was never constructed. This is stored here rather
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than in the class so that we don't need to include
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anything or do conditional compilation in
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source-cache.h. */
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static srchilite::SourceHighlight *highlighter;
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if (s->line_charpos == 0)
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{
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scoped_fd desc (open_source_file_with_line_charpos (s));
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if (desc.get () < 0)
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return false;
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/* FULLNAME points to a value owned by the symtab
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(symtab::fullname). Calling open_source_file reallocates
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that value, so we must refresh FULLNAME to avoid a
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use-after-free. */
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fullname = symtab_to_fullname (s);
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}
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if (highlighter == nullptr)
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{
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highlighter = new srchilite::SourceHighlight ("esc.outlang");
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highlighter->setStyleFile ("esc.style");
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}
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std::ostringstream output;
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highlighter->highlight (input, output, lang_name, fullname);
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source_text result = { fullname, output.str () };
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m_source_map.push_back (std::move (result));
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if (m_source_map.size () > MAX_ENTRIES)
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m_source_map.erase (m_source_map.begin ());
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*lines = extract_lines (m_source_map.back (), first_line,
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last_line);
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return true;
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}
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}
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}
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#endif /* HAVE_SOURCE_HIGHLIGHT */
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return get_plain_source_lines (s, first_line, last_line, lines);
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}
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