mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-03 04:12:10 +08:00
6d3d12ebef
This commit includes string.h in common-defs.h and removes all other inclusions. gdb/ 2014-08-07 Gary Benson <gbenson@redhat.com> * common/common-defs.h: Include string.h. * aarch64-tdep.c: Do not include string.h. * ada-exp.y: Likewise. * ada-lang.c: Likewise. * ada-lex.l: Likewise. * ada-typeprint.c: Likewise. * ada-valprint.c: Likewise. * aix-thread.c: Likewise. * alpha-linux-tdep.c: Likewise. * alpha-mdebug-tdep.c: Likewise. * alpha-nat.c: Likewise. * alpha-osf1-tdep.c: Likewise. * alpha-tdep.c: Likewise. * alphanbsd-tdep.c: Likewise. * amd64-dicos-tdep.c: Likewise. * amd64-linux-tdep.c: Likewise. * amd64-nat.c: Likewise. * amd64-sol2-tdep.c: Likewise. * amd64fbsd-tdep.c: Likewise. * amd64obsd-tdep.c: Likewise. * arch-utils.c: Likewise. * arm-linux-nat.c: Likewise. * arm-linux-tdep.c: Likewise. * arm-tdep.c: Likewise. * arm-wince-tdep.c: Likewise. * armbsd-tdep.c: Likewise. * armnbsd-nat.c: Likewise. * armnbsd-tdep.c: Likewise. * armobsd-tdep.c: Likewise. * avr-tdep.c: Likewise. * ax-gdb.c: Likewise. * ax-general.c: Likewise. * bcache.c: Likewise. * bfin-tdep.c: Likewise. * breakpoint.c: Likewise. * build-id.c: Likewise. * buildsym.c: Likewise. * c-exp.y: Likewise. * c-lang.c: Likewise. * c-typeprint.c: Likewise. * c-valprint.c: Likewise. * charset.c: Likewise. * cli-out.c: Likewise. * cli/cli-cmds.c: Likewise. * cli/cli-decode.c: Likewise. * cli/cli-dump.c: Likewise. * cli/cli-interp.c: Likewise. * cli/cli-logging.c: Likewise. * cli/cli-script.c: Likewise. * cli/cli-setshow.c: Likewise. * cli/cli-utils.c: Likewise. * coffread.c: Likewise. * common/agent.c: Likewise. * common/buffer.c: Likewise. * common/buffer.h: Likewise. * common/common-utils.c: Likewise. * common/filestuff.c: Likewise. * common/filestuff.c: Likewise. * common/format.c: Likewise. * common/print-utils.c: Likewise. * common/rsp-low.c: Likewise. * common/signals.c: Likewise. * common/vec.h: Likewise. * common/xml-utils.c: Likewise. * core-regset.c: Likewise. * corefile.c: Likewise. * corelow.c: Likewise. * cp-abi.c: Likewise. * cp-name-parser.y: Likewise. * cp-support.c: Likewise. * cp-valprint.c: Likewise. * cris-tdep.c: Likewise. * d-exp.y: Likewise. * darwin-nat.c: Likewise. * dbxread.c: Likewise. * dcache.c: Likewise. * demangle.c: Likewise. * dicos-tdep.c: Likewise. * disasm.c: Likewise. * doublest.c: Likewise. * dsrec.c: Likewise. * dummy-frame.c: Likewise. * dwarf2-frame.c: Likewise. * dwarf2loc.c: Likewise. * dwarf2read.c: Likewise. * elfread.c: Likewise. * environ.c: Likewise. * eval.c: Likewise. * event-loop.c: Likewise. * exceptions.c: Likewise. * exec.c: Likewise. * expprint.c: Likewise. * f-exp.y: Likewise. * f-lang.c: Likewise. * f-typeprint.c: Likewise. * f-valprint.c: Likewise. * fbsd-nat.c: Likewise. * findcmd.c: Likewise. * findvar.c: Likewise. * fork-child.c: Likewise. * frame.c: Likewise. * frv-linux-tdep.c: Likewise. * frv-tdep.c: Likewise. * gdb.c: Likewise. * gdb_bfd.c: Likewise. * gdbarch.c: Likewise. * gdbarch.sh: Likewise. * gdbtypes.c: Likewise. * gnu-nat.c: Likewise. * gnu-v2-abi.c: Likewise. * gnu-v3-abi.c: Likewise. * go-exp.y: Likewise. * go-lang.c: Likewise. * go32-nat.c: Likewise. * guile/guile.c: Likewise. * guile/scm-auto-load.c: Likewise. * hppa-hpux-tdep.c: Likewise. * hppa-linux-nat.c: Likewise. * hppanbsd-tdep.c: Likewise. * hppaobsd-tdep.c: Likewise. * i386-cygwin-tdep.c: Likewise. * i386-dicos-tdep.c: Likewise. * i386-linux-tdep.c: Likewise. * i386-nto-tdep.c: Likewise. * i386-sol2-tdep.c: Likewise. * i386-tdep.c: Likewise. * i386bsd-tdep.c: Likewise. * i386gnu-nat.c: Likewise. * i386nbsd-tdep.c: Likewise. * i386obsd-tdep.c: Likewise. * i387-tdep.c: Likewise. * ia64-libunwind-tdep.c: Likewise. * ia64-linux-nat.c: Likewise. * inf-child.c: Likewise. * inf-ptrace.c: Likewise. * inf-ttrace.c: Likewise. * infcall.c: Likewise. * infcmd.c: Likewise. * inflow.c: Likewise. * infrun.c: Likewise. * interps.c: Likewise. * iq2000-tdep.c: Likewise. * irix5-nat.c: Likewise. * jv-exp.y: Likewise. * jv-lang.c: Likewise. * jv-typeprint.c: Likewise. * jv-valprint.c: Likewise. * language.c: Likewise. * linux-fork.c: Likewise. * linux-nat.c: Likewise. * lm32-tdep.c: Likewise. * m2-exp.y: Likewise. * m2-typeprint.c: Likewise. * m32c-tdep.c: Likewise. * m32r-linux-nat.c: Likewise. * m32r-linux-tdep.c: Likewise. * m32r-rom.c: Likewise. * m32r-tdep.c: Likewise. * m68hc11-tdep.c: Likewise. * m68k-tdep.c: Likewise. * m68kbsd-tdep.c: Likewise. * m68klinux-nat.c: Likewise. * m68klinux-tdep.c: Likewise. * m88k-tdep.c: Likewise. * machoread.c: Likewise. * macrocmd.c: Likewise. * main.c: Likewise. * mdebugread.c: Likewise. * mem-break.c: Likewise. * memattr.c: Likewise. * memory-map.c: Likewise. * mep-tdep.c: Likewise. * mi/mi-cmd-break.c: Likewise. * mi/mi-cmd-disas.c: Likewise. * mi/mi-cmd-env.c: Likewise. * mi/mi-cmd-stack.c: Likewise. * mi/mi-cmd-var.c: Likewise. * mi/mi-cmds.c: Likewise. * mi/mi-console.c: Likewise. * mi/mi-getopt.c: Likewise. * mi/mi-interp.c: Likewise. * mi/mi-main.c: Likewise. * mi/mi-parse.c: Likewise. * microblaze-rom.c: Likewise. * microblaze-tdep.c: Likewise. * mingw-hdep.c: Likewise. * minidebug.c: Likewise. * minsyms.c: Likewise. * mips-irix-tdep.c: Likewise. * mips-linux-tdep.c: Likewise. * mips-tdep.c: Likewise. * mips64obsd-tdep.c: Likewise. * mipsnbsd-tdep.c: Likewise. * mipsread.c: Likewise. * mn10300-linux-tdep.c: Likewise. * mn10300-tdep.c: Likewise. * monitor.c: Likewise. * moxie-tdep.c: Likewise. * mt-tdep.c: Likewise. * nat/linux-btrace.c: Likewise. * nat/linux-osdata.c: Likewise. * nat/linux-procfs.c: Likewise. * nat/linux-ptrace.c: Likewise. * nat/linux-waitpid.c: Likewise. * nbsd-tdep.c: Likewise. * nios2-linux-tdep.c: Likewise. * nto-procfs.c: Likewise. * nto-tdep.c: Likewise. * objc-lang.c: Likewise. * objfiles.c: Likewise. * opencl-lang.c: Likewise. * osabi.c: Likewise. * osdata.c: Likewise. * p-exp.y: Likewise. * p-lang.c: Likewise. * p-typeprint.c: Likewise. * parse.c: Likewise. * posix-hdep.c: Likewise. * ppc-linux-nat.c: Likewise. * ppc-sysv-tdep.c: Likewise. * ppcfbsd-tdep.c: Likewise. * ppcnbsd-tdep.c: Likewise. * ppcobsd-tdep.c: Likewise. * printcmd.c: Likewise. * procfs.c: Likewise. * prologue-value.c: Likewise. * python/py-auto-load.c: Likewise. * python/py-gdb-readline.c: Likewise. * ravenscar-thread.c: Likewise. * regcache.c: Likewise. * registry.c: Likewise. * remote-fileio.c: Likewise. * remote-m32r-sdi.c: Likewise. * remote-mips.c: Likewise. * remote-notif.c: Likewise. * remote-sim.c: Likewise. * remote.c: Likewise. * reverse.c: Likewise. * rs6000-aix-tdep.c: Likewise. * ser-base.c: Likewise. * ser-go32.c: Likewise. * ser-mingw.c: Likewise. * ser-pipe.c: Likewise. * ser-tcp.c: Likewise. * ser-unix.c: Likewise. * serial.c: Likewise. * sh-tdep.c: Likewise. * sh64-tdep.c: Likewise. * shnbsd-tdep.c: Likewise. * skip.c: Likewise. * sol-thread.c: Likewise. * solib-dsbt.c: Likewise. * solib-frv.c: Likewise. * solib-osf.c: Likewise. * solib-som.c: Likewise. * solib-spu.c: Likewise. * solib-target.c: Likewise. * solib.c: Likewise. * somread.c: Likewise. * source.c: Likewise. * sparc-nat.c: Likewise. * sparc-sol2-tdep.c: Likewise. * sparc-tdep.c: Likewise. * sparc64-tdep.c: Likewise. * sparc64fbsd-tdep.c: Likewise. * sparc64nbsd-tdep.c: Likewise. * sparcnbsd-tdep.c: Likewise. * spu-linux-nat.c: Likewise. * spu-multiarch.c: Likewise. * spu-tdep.c: Likewise. * stabsread.c: Likewise. * stack.c: Likewise. * std-regs.c: Likewise. * symfile.c: Likewise. * symmisc.c: Likewise. * symtab.c: Likewise. * target.c: Likewise. * thread.c: Likewise. * tilegx-linux-nat.c: Likewise. * tilegx-tdep.c: Likewise. * top.c: Likewise. * tracepoint.c: Likewise. * tui/tui-command.c: Likewise. * tui/tui-data.c: Likewise. * tui/tui-disasm.c: Likewise. * tui/tui-file.c: Likewise. * tui/tui-layout.c: Likewise. * tui/tui-out.c: Likewise. * tui/tui-regs.c: Likewise. * tui/tui-source.c: Likewise. * tui/tui-stack.c: Likewise. * tui/tui-win.c: Likewise. * tui/tui-windata.c: Likewise. * tui/tui-winsource.c: Likewise. * typeprint.c: Likewise. * ui-file.c: Likewise. * ui-out.c: Likewise. * user-regs.c: Likewise. * utils.c: Likewise. * v850-tdep.c: Likewise. * valarith.c: Likewise. * valops.c: Likewise. * valprint.c: Likewise. * value.c: Likewise. * varobj.c: Likewise. * vax-tdep.c: Likewise. * vaxnbsd-tdep.c: Likewise. * vaxobsd-tdep.c: Likewise. * windows-nat.c: Likewise. * xcoffread.c: Likewise. * xml-support.c: Likewise. * xstormy16-tdep.c: Likewise. * xtensa-linux-nat.c: Likewise. gdb/gdbserver/ 2014-08-07 Gary Benson <gbenson@redhat.com> * server.h: Do not include string.h. * event-loop.c: Likewise. * linux-low.c: Likewise. * regcache.c: Likewise. * remote-utils.c: Likewise. * spu-low.c: Likewise. * utils.c: Likewise.
290 lines
7.8 KiB
C
290 lines
7.8 KiB
C
/* Read MiniDebugInfo data from an objfile.
|
|
|
|
Copyright (C) 2012-2014 Free Software Foundation, Inc.
|
|
|
|
This file is part of GDB.
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>. */
|
|
|
|
#include "defs.h"
|
|
#include "gdb_bfd.h"
|
|
#include "symfile.h"
|
|
#include "objfiles.h"
|
|
#include "gdbcore.h"
|
|
|
|
#ifdef HAVE_LIBLZMA
|
|
|
|
#include <lzma.h>
|
|
|
|
/* Allocator function for LZMA. */
|
|
|
|
static void *
|
|
alloc_lzma (void *opaque, size_t nmemb, size_t size)
|
|
{
|
|
return xmalloc (nmemb * size);
|
|
}
|
|
|
|
/* Free function for LZMA. */
|
|
|
|
static void
|
|
free_lzma (void *opaque, void *ptr)
|
|
{
|
|
xfree (ptr);
|
|
}
|
|
|
|
/* The allocator object for LZMA. Note that 'gdb_lzma_allocator'
|
|
cannot be const due to the lzma library function prototypes. */
|
|
|
|
static lzma_allocator gdb_lzma_allocator = { alloc_lzma, free_lzma, NULL };
|
|
|
|
/* Custom bfd_openr_iovec implementation to read compressed data from
|
|
a section. This keeps only the last decompressed block in memory
|
|
to allow larger data without using to much memory. */
|
|
|
|
struct lzma_stream
|
|
{
|
|
/* Section of input BFD from which we are decoding data. */
|
|
asection *section;
|
|
|
|
/* lzma library decompression state. */
|
|
lzma_index *index;
|
|
|
|
/* Currently decoded block. */
|
|
bfd_size_type data_start;
|
|
bfd_size_type data_end;
|
|
gdb_byte *data;
|
|
};
|
|
|
|
/* bfd_openr_iovec OPEN_P implementation for
|
|
find_separate_debug_file_in_section. OPEN_CLOSURE is 'asection *'
|
|
of the section to decompress.
|
|
|
|
Return 'struct lzma_stream *' must be freed by caller by xfree, together
|
|
with its INDEX lzma data. */
|
|
|
|
static void *
|
|
lzma_open (struct bfd *nbfd, void *open_closure)
|
|
{
|
|
asection *section = open_closure;
|
|
bfd_size_type size, offset;
|
|
lzma_stream_flags options;
|
|
gdb_byte footer[LZMA_STREAM_HEADER_SIZE];
|
|
gdb_byte *indexdata;
|
|
lzma_index *index;
|
|
int ret;
|
|
uint64_t memlimit = UINT64_MAX;
|
|
struct lzma_stream *lstream;
|
|
size_t pos;
|
|
|
|
size = bfd_get_section_size (section);
|
|
offset = section->filepos + size - LZMA_STREAM_HEADER_SIZE;
|
|
if (size < LZMA_STREAM_HEADER_SIZE
|
|
|| bfd_seek (section->owner, offset, SEEK_SET) != 0
|
|
|| bfd_bread (footer, LZMA_STREAM_HEADER_SIZE, section->owner)
|
|
!= LZMA_STREAM_HEADER_SIZE
|
|
|| lzma_stream_footer_decode (&options, footer) != LZMA_OK
|
|
|| offset < options.backward_size)
|
|
{
|
|
bfd_set_error (bfd_error_wrong_format);
|
|
return NULL;
|
|
}
|
|
|
|
offset -= options.backward_size;
|
|
indexdata = xmalloc (options.backward_size);
|
|
index = NULL;
|
|
pos = 0;
|
|
if (bfd_seek (section->owner, offset, SEEK_SET) != 0
|
|
|| bfd_bread (indexdata, options.backward_size, section->owner)
|
|
!= options.backward_size
|
|
|| lzma_index_buffer_decode (&index, &memlimit, &gdb_lzma_allocator,
|
|
indexdata, &pos, options.backward_size)
|
|
!= LZMA_OK
|
|
|| lzma_index_size (index) != options.backward_size)
|
|
{
|
|
xfree (indexdata);
|
|
bfd_set_error (bfd_error_wrong_format);
|
|
return NULL;
|
|
}
|
|
xfree (indexdata);
|
|
|
|
lstream = xzalloc (sizeof (struct lzma_stream));
|
|
lstream->section = section;
|
|
lstream->index = index;
|
|
|
|
return lstream;
|
|
}
|
|
|
|
/* bfd_openr_iovec PREAD_P implementation for
|
|
find_separate_debug_file_in_section. Passed STREAM
|
|
is 'struct lzma_stream *'. */
|
|
|
|
static file_ptr
|
|
lzma_pread (struct bfd *nbfd, void *stream, void *buf, file_ptr nbytes,
|
|
file_ptr offset)
|
|
{
|
|
struct lzma_stream *lstream = stream;
|
|
bfd_size_type chunk_size;
|
|
lzma_index_iter iter;
|
|
gdb_byte *compressed, *uncompressed;
|
|
file_ptr block_offset;
|
|
lzma_filter filters[LZMA_FILTERS_MAX + 1];
|
|
lzma_block block;
|
|
size_t compressed_pos, uncompressed_pos;
|
|
file_ptr res;
|
|
|
|
res = 0;
|
|
while (nbytes > 0)
|
|
{
|
|
if (lstream->data == NULL
|
|
|| lstream->data_start > offset || offset >= lstream->data_end)
|
|
{
|
|
asection *section = lstream->section;
|
|
|
|
lzma_index_iter_init (&iter, lstream->index);
|
|
if (lzma_index_iter_locate (&iter, offset))
|
|
break;
|
|
|
|
compressed = xmalloc (iter.block.total_size);
|
|
block_offset = section->filepos + iter.block.compressed_file_offset;
|
|
if (bfd_seek (section->owner, block_offset, SEEK_SET) != 0
|
|
|| bfd_bread (compressed, iter.block.total_size, section->owner)
|
|
!= iter.block.total_size)
|
|
{
|
|
xfree (compressed);
|
|
break;
|
|
}
|
|
|
|
uncompressed = xmalloc (iter.block.uncompressed_size);
|
|
|
|
memset (&block, 0, sizeof (block));
|
|
block.filters = filters;
|
|
block.header_size = lzma_block_header_size_decode (compressed[0]);
|
|
if (lzma_block_header_decode (&block, &gdb_lzma_allocator, compressed)
|
|
!= LZMA_OK)
|
|
{
|
|
xfree (compressed);
|
|
xfree (uncompressed);
|
|
break;
|
|
}
|
|
|
|
compressed_pos = block.header_size;
|
|
uncompressed_pos = 0;
|
|
if (lzma_block_buffer_decode (&block, &gdb_lzma_allocator,
|
|
compressed, &compressed_pos,
|
|
iter.block.total_size,
|
|
uncompressed, &uncompressed_pos,
|
|
iter.block.uncompressed_size)
|
|
!= LZMA_OK)
|
|
{
|
|
xfree (compressed);
|
|
xfree (uncompressed);
|
|
break;
|
|
}
|
|
|
|
xfree (compressed);
|
|
|
|
xfree (lstream->data);
|
|
lstream->data = uncompressed;
|
|
lstream->data_start = iter.block.uncompressed_file_offset;
|
|
lstream->data_end = (iter.block.uncompressed_file_offset
|
|
+ iter.block.uncompressed_size);
|
|
}
|
|
|
|
chunk_size = min (nbytes, lstream->data_end - offset);
|
|
memcpy (buf, lstream->data + offset - lstream->data_start, chunk_size);
|
|
buf = (gdb_byte *) buf + chunk_size;
|
|
offset += chunk_size;
|
|
nbytes -= chunk_size;
|
|
res += chunk_size;
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
/* bfd_openr_iovec CLOSE_P implementation for
|
|
find_separate_debug_file_in_section. Passed STREAM
|
|
is 'struct lzma_stream *'. */
|
|
|
|
static int
|
|
lzma_close (struct bfd *nbfd,
|
|
void *stream)
|
|
{
|
|
struct lzma_stream *lstream = stream;
|
|
|
|
lzma_index_end (lstream->index, &gdb_lzma_allocator);
|
|
xfree (lstream->data);
|
|
xfree (lstream);
|
|
|
|
/* Zero means success. */
|
|
return 0;
|
|
}
|
|
|
|
/* bfd_openr_iovec STAT_P implementation for
|
|
find_separate_debug_file_in_section. Passed STREAM
|
|
is 'struct lzma_stream *'. */
|
|
|
|
static int
|
|
lzma_stat (struct bfd *abfd,
|
|
void *stream,
|
|
struct stat *sb)
|
|
{
|
|
struct lzma_stream *lstream = stream;
|
|
|
|
sb->st_size = lzma_index_uncompressed_size (lstream->index);
|
|
return 0;
|
|
}
|
|
|
|
#endif /* HAVE_LIBLZMA */
|
|
|
|
/* This looks for a xz compressed separate debug info object file embedded
|
|
in a section called .gnu_debugdata. See
|
|
http://fedoraproject.org/wiki/Features/MiniDebugInfo
|
|
or the "Separate Debug Sections" of the manual for details.
|
|
If we find one we create a iovec based bfd that decompresses the
|
|
object data on demand. If we don't find one, return NULL. */
|
|
|
|
bfd *
|
|
find_separate_debug_file_in_section (struct objfile *objfile)
|
|
{
|
|
asection *section;
|
|
bfd *abfd;
|
|
|
|
if (objfile->obfd == NULL)
|
|
return NULL;
|
|
|
|
section = bfd_get_section_by_name (objfile->obfd, ".gnu_debugdata");
|
|
if (section == NULL)
|
|
return NULL;
|
|
|
|
#ifdef HAVE_LIBLZMA
|
|
abfd = gdb_bfd_openr_iovec (objfile_name (objfile), gnutarget, lzma_open,
|
|
section, lzma_pread, lzma_close, lzma_stat);
|
|
if (abfd == NULL)
|
|
return NULL;
|
|
|
|
if (!bfd_check_format (abfd, bfd_object))
|
|
{
|
|
warning (_("Cannot parse .gnu_debugdata section; not a BFD object"));
|
|
gdb_bfd_unref (abfd);
|
|
return NULL;
|
|
}
|
|
#else
|
|
warning (_("Cannot parse .gnu_debugdata section; LZMA support was "
|
|
"disabled at compile time"));
|
|
abfd = NULL;
|
|
#endif /* !HAVE_LIBLZMA */
|
|
|
|
return abfd;
|
|
}
|