readelf/objdump: support for SFrame section

This patch adds support for SFrame in readelf and objdump. The arguments
of --sframe are optional for both readelf and objdump.

include/ChangeLog:

	* sframe-api.h (dump_sframe): New function declaration.

ChangeLog:

	* binutils/Makefile.am: Add dependency on libsframe for
	readelf and objdump.
	* binutils/Makefile.in: Regenerate.
	* binutils/doc/binutils.texi: Document --sframe=[section].
	* binutils/doc/sframe.options.texi: New file.
	* binutils/objdump.c: Add support for SFrame format.
	* binutils/readelf.c: Likewise.
	* include/sframe-api.h: Add new API for dumping .sframe
	section.
	* libsframe/Makefile.am: Add sframe-dump.c.
	* libsframe/Makefile.in: Regenerate.
	* libsframe/sframe-dump.c: New file.
This commit is contained in:
Indu Bhagat 2022-11-15 15:07:09 -08:00
parent cf0e0a0ba9
commit 42b6953bba
10 changed files with 355 additions and 11 deletions

View File

@ -228,7 +228,7 @@ installcheck-local:
# which depends on libintl, since we don't know whether LIBINTL_DEP will be
# non-empty until configure time. Ugh!
size_DEPENDENCIES = $(LIBINTL_DEP) $(LIBIBERTY) $(BFDLIB)
objdump_DEPENDENCIES = $(LIBINTL_DEP) $(LIBIBERTY) $(BFDLIB) $(OPCODES) $(LIBCTF) $(OBJDUMP_PRIVATE_OFILES)
objdump_DEPENDENCIES = $(LIBINTL_DEP) $(LIBIBERTY) $(BFDLIB) $(OPCODES) $(LIBCTF) $(OBJDUMP_PRIVATE_OFILES) $(LIBSFRAME)
nm_new_DEPENDENCIES = $(LIBINTL_DEP) $(LIBIBERTY) $(BFDLIB)
ar_DEPENDENCIES = $(LIBINTL_DEP) $(LIBIBERTY) $(BFDLIB)
strings_DEPENDENCIES = $(LIBINTL_DEP) $(LIBIBERTY) $(BFDLIB)
@ -243,7 +243,7 @@ dlltool_DEPENDENCIES = $(LIBINTL_DEP) $(LIBIBERTY) $(BFDLIB)
windres_DEPENDENCIES = $(LIBINTL_DEP) $(LIBIBERTY) $(BFDLIB)
windmc_DEPENDENCIES = $(LIBINTL_DEP) $(LIBIBERTY) $(BFDLIB)
addr2line_DEPENDENCIES = $(LIBINTL_DEP) $(LIBIBERTY) $(BFDLIB)
readelf_DEPENDENCIES = $(LIBINTL_DEP) $(LIBIBERTY) $(LIBCTF_NOBFD)
readelf_DEPENDENCIES = $(LIBINTL_DEP) $(LIBIBERTY) $(LIBCTF_NOBFD) $(LIBSFRAME)
elfedit_DEPENDENCIES = $(LIBINTL_DEP) $(LIBIBERTY)
dllwrap_DEPENDENCIES = $(LIBINTL_DEP) $(LIBIBERTY)
bfdtest1_DEPENDENCIES = $(LIBINTL_DEP) $(LIBIBERTY) $(BFDLIB)
@ -258,7 +258,7 @@ objcopy_SOURCES = objcopy.c not-strip.c rename.c $(WRITE_DEBUG_SRCS) $(BULIBS)
strings_SOURCES = strings.c $(BULIBS)
readelf_SOURCES = readelf.c version.c unwind-ia64.c dwarf.c demanguse.c $(ELFLIBS)
readelf_LDADD = $(LIBCTF_NOBFD) $(LIBINTL) $(LIBIBERTY) $(ZLIB) $(ZSTD_LIBS) $(DEBUGINFOD_LIBS) $(MSGPACK_LIBS)
readelf_LDADD = $(LIBCTF_NOBFD) $(LIBINTL) $(LIBIBERTY) $(ZLIB) $(ZSTD_LIBS) $(DEBUGINFOD_LIBS) $(MSGPACK_LIBS) $(LIBSFRAME)
elfedit_SOURCES = elfedit.c version.c $(ELFLIBS)
elfedit_LDADD = $(LIBINTL) $(LIBIBERTY)
@ -269,7 +269,7 @@ nm_new_SOURCES = nm.c demanguse.c $(BULIBS)
objdump_SOURCES = objdump.c dwarf.c prdbg.c demanguse.c $(DEBUG_SRCS) $(BULIBS) $(ELFLIBS)
EXTRA_objdump_SOURCES = od-xcoff.c
objdump_LDADD = $(OBJDUMP_PRIVATE_OFILES) $(OPCODES) $(LIBCTF) $(BFDLIB) $(LIBIBERTY) $(LIBINTL) $(DEBUGINFOD_LIBS)
objdump_LDADD = $(OBJDUMP_PRIVATE_OFILES) $(OPCODES) $(LIBCTF) $(BFDLIB) $(LIBIBERTY) $(LIBINTL) $(DEBUGINFOD_LIBS) $(LIBSFRAME)
objdump.@OBJEXT@:objdump.c
if am__fastdepCC

View File

@ -766,7 +766,7 @@ CC_FOR_TARGET = ` \
# which depends on libintl, since we don't know whether LIBINTL_DEP will be
# non-empty until configure time. Ugh!
size_DEPENDENCIES = $(LIBINTL_DEP) $(LIBIBERTY) $(BFDLIB)
objdump_DEPENDENCIES = $(LIBINTL_DEP) $(LIBIBERTY) $(BFDLIB) $(OPCODES) $(LIBCTF) $(OBJDUMP_PRIVATE_OFILES)
objdump_DEPENDENCIES = $(LIBINTL_DEP) $(LIBIBERTY) $(BFDLIB) $(OPCODES) $(LIBCTF) $(OBJDUMP_PRIVATE_OFILES) $(LIBSFRAME)
nm_new_DEPENDENCIES = $(LIBINTL_DEP) $(LIBIBERTY) $(BFDLIB)
ar_DEPENDENCIES = $(LIBINTL_DEP) $(LIBIBERTY) $(BFDLIB)
strings_DEPENDENCIES = $(LIBINTL_DEP) $(LIBIBERTY) $(BFDLIB)
@ -781,7 +781,7 @@ dlltool_DEPENDENCIES = $(LIBINTL_DEP) $(LIBIBERTY) $(BFDLIB)
windres_DEPENDENCIES = $(LIBINTL_DEP) $(LIBIBERTY) $(BFDLIB)
windmc_DEPENDENCIES = $(LIBINTL_DEP) $(LIBIBERTY) $(BFDLIB)
addr2line_DEPENDENCIES = $(LIBINTL_DEP) $(LIBIBERTY) $(BFDLIB)
readelf_DEPENDENCIES = $(LIBINTL_DEP) $(LIBIBERTY) $(LIBCTF_NOBFD)
readelf_DEPENDENCIES = $(LIBINTL_DEP) $(LIBIBERTY) $(LIBCTF_NOBFD) $(LIBSFRAME)
elfedit_DEPENDENCIES = $(LIBINTL_DEP) $(LIBIBERTY)
dllwrap_DEPENDENCIES = $(LIBINTL_DEP) $(LIBIBERTY)
bfdtest1_DEPENDENCIES = $(LIBINTL_DEP) $(LIBIBERTY) $(BFDLIB)
@ -791,14 +791,14 @@ size_SOURCES = size.c $(BULIBS)
objcopy_SOURCES = objcopy.c not-strip.c rename.c $(WRITE_DEBUG_SRCS) $(BULIBS)
strings_SOURCES = strings.c $(BULIBS)
readelf_SOURCES = readelf.c version.c unwind-ia64.c dwarf.c demanguse.c $(ELFLIBS)
readelf_LDADD = $(LIBCTF_NOBFD) $(LIBINTL) $(LIBIBERTY) $(ZLIB) $(ZSTD_LIBS) $(DEBUGINFOD_LIBS) $(MSGPACK_LIBS)
readelf_LDADD = $(LIBCTF_NOBFD) $(LIBINTL) $(LIBIBERTY) $(ZLIB) $(ZSTD_LIBS) $(DEBUGINFOD_LIBS) $(MSGPACK_LIBS) $(LIBSFRAME)
elfedit_SOURCES = elfedit.c version.c $(ELFLIBS)
elfedit_LDADD = $(LIBINTL) $(LIBIBERTY)
strip_new_SOURCES = objcopy.c is-strip.c rename.c $(WRITE_DEBUG_SRCS) $(BULIBS)
nm_new_SOURCES = nm.c demanguse.c $(BULIBS)
objdump_SOURCES = objdump.c dwarf.c prdbg.c demanguse.c $(DEBUG_SRCS) $(BULIBS) $(ELFLIBS)
EXTRA_objdump_SOURCES = od-xcoff.c
objdump_LDADD = $(OBJDUMP_PRIVATE_OFILES) $(OPCODES) $(LIBCTF) $(BFDLIB) $(LIBIBERTY) $(LIBINTL) $(DEBUGINFOD_LIBS)
objdump_LDADD = $(OBJDUMP_PRIVATE_OFILES) $(OPCODES) $(LIBCTF) $(BFDLIB) $(LIBIBERTY) $(LIBINTL) $(DEBUGINFOD_LIBS) $(LIBSFRAME)
cxxfilt_SOURCES = cxxfilt.c $(BULIBS)
ar_SOURCES = arparse.y arlex.l ar.c not-ranlib.c arsup.c rename.c binemul.c \
emul_$(EMULATION).c $(BULIBS)

View File

@ -2262,6 +2262,7 @@ objdump [@option{-a}|@option{--archive-headers}]
[@option{-wE}|@option{--dwarf=do-not-use-debuginfod}]
[@option{-L}|@option{--process-links}]
[@option{--ctf=}@var{section}]
[@option{--sframe=}@var{section}]
[@option{-G}|@option{--stabs}]
[@option{-t}|@option{--syms}]
[@option{-T}|@option{--dynamic-syms}]
@ -2851,6 +2852,8 @@ Enable additional checks for consistency of Dwarf information.
@include ctf.options.texi
@include sframe.options.texi
@item -G
@itemx --stabs
@cindex stab
@ -4948,6 +4951,7 @@ readelf [@option{-a}|@option{--all}]
[@option{--ctf-parent=}@var{section}]
[@option{--ctf-symbols=}@var{section}]
[@option{--ctf-strings=}@var{section}]
[@option{--sframe=}@var{section}]
[@option{-I}|@option{--histogram}]
[@option{-v}|@option{--version}]
[@option{-W}|@option{--wide}]

View File

@ -0,0 +1,10 @@
@c This file contains the entry for the --sframe option that is
@c common to both readelf and objdump.
@item --sframe[=@var{section}]
@cindex SFrame
Display the contents of the specified SFrame section.
By default, display the name of the section named @var{.sframe}, which is the
name emitted by @command{ld}.

View File

@ -58,6 +58,7 @@
#include "demanguse.h"
#include "dwarf.h"
#include "ctf-api.h"
#include "sframe-api.h"
#include "getopt.h"
#include "safe-ctype.h"
#include "dis-asm.h"
@ -108,6 +109,8 @@ static int dump_stab_section_info; /* --stabs */
static int dump_ctf_section_info; /* --ctf */
static char *dump_ctf_section_name;
static char *dump_ctf_parent_name; /* --ctf-parent */
static int dump_sframe_section_info; /* --sframe */
static char *dump_sframe_section_name;
static int do_demangle; /* -C, --demangle */
static bool disassemble; /* -d */
static bool disassemble_all; /* -D */
@ -321,6 +324,8 @@ usage (FILE *stream, int status)
fprintf (stream, _("\
--ctf[=SECTION] Display CTF info from SECTION, (default `.ctf')\n"));
#endif
fprintf (stream, _("\
--sframe[=SECTION] Display SFrame info from SECTION, (default '.sframe')\n"));
fprintf (stream, _("\
-t, --syms Display the contents of the symbol table(s)\n"));
fprintf (stream, _("\
@ -476,6 +481,7 @@ enum option_values
OPTION_CTF,
OPTION_CTF_PARENT,
#endif
OPTION_SFRAME,
OPTION_VISUALIZE_JUMPS,
OPTION_DISASSEMBLER_COLOR
};
@ -530,6 +536,7 @@ static struct option long_options[]=
{"reloc", no_argument, NULL, 'r'},
{"section", required_argument, NULL, 'j'},
{"section-headers", no_argument, NULL, 'h'},
{"sframe", optional_argument, NULL, OPTION_SFRAME},
{"show-raw-insn", no_argument, &show_raw_insn, 1},
{"source", no_argument, NULL, 'S'},
{"source-comment", optional_argument, NULL, OPTION_SOURCE_COMMENT},
@ -4815,6 +4822,66 @@ dump_ctf (bfd *abfd ATTRIBUTE_UNUSED, const char *sect_name ATTRIBUTE_UNUSED,
const char *parent_name ATTRIBUTE_UNUSED) {}
#endif
static bfd_byte*
read_section_sframe (bfd *abfd, const char *sect_name, bfd_size_type *size_ptr,
bfd_vma *sframe_vma)
{
asection *sframe_sect;
bfd_byte *contents;
sframe_sect = bfd_get_section_by_name (abfd, sect_name);
if (sframe_sect == NULL)
{
printf (_("No %s section present\n\n"),
sanitize_string (sect_name));
return NULL;
}
if (!bfd_malloc_and_get_section (abfd, sframe_sect, &contents))
{
non_fatal (_("reading %s section of %s failed: %s"),
sect_name, bfd_get_filename (abfd),
bfd_errmsg (bfd_get_error ()));
exit_status = 1;
free (contents);
return NULL;
}
*size_ptr = bfd_section_size (sframe_sect);
*sframe_vma = bfd_section_vma (sframe_sect);
return contents;
}
static void
dump_section_sframe (bfd *abfd ATTRIBUTE_UNUSED,
const char * sect_name)
{
sframe_decoder_ctx *sfd_ctx = NULL;
bfd_size_type sf_size;
bfd_byte *sframe_data = NULL;
bfd_vma sf_vma;
int err = 0;
if (sect_name == NULL)
sect_name = ".sframe";
sframe_data = read_section_sframe (abfd, sect_name, &sf_size, &sf_vma);
if (sframe_data == NULL)
bfd_fatal (bfd_get_filename (abfd));
/* Decode the contents of the section. */
sfd_ctx = sframe_decode ((const char*)sframe_data, sf_size, &err);
if (!sfd_ctx)
bfd_fatal (bfd_get_filename (abfd));
printf (_("Contents of the SFrame section %s:"),
sanitize_string (sect_name));
/* Dump the contents as text. */
dump_sframe (sfd_ctx, sf_vma);
}
static void
dump_bfd_private_header (bfd *abfd)
@ -5568,6 +5635,8 @@ dump_bfd (bfd *abfd, bool is_mainfile)
{
if (dump_ctf_section_info)
dump_ctf (abfd, dump_ctf_section_name, dump_ctf_parent_name);
if (dump_sframe_section_info)
dump_section_sframe (abfd, dump_sframe_section_name);
if (dump_stab_section_info)
dump_stabs (abfd);
if (dump_reloc_info && ! disassemble)
@ -6071,6 +6140,12 @@ main (int argc, char **argv)
dump_ctf_parent_name = xstrdup (optarg);
break;
#endif
case OPTION_SFRAME:
dump_sframe_section_info = true;
if (optarg)
dump_sframe_section_name = xstrdup (optarg);
seenflag = true;
break;
case 'G':
dump_stab_section_info = true;
seenflag = true;

View File

@ -63,6 +63,7 @@
#include "demanguse.h"
#include "dwarf.h"
#include "ctf-api.h"
#include "sframe-api.h"
#include "demangle.h"
#include "elf/common.h"
@ -190,6 +191,7 @@ typedef struct elf_section_list
#define STRING_DUMP (1 << 3) /* The -p command line switch. */
#define RELOC_DUMP (1 << 4) /* The -R command line switch. */
#define CTF_DUMP (1 << 5) /* The --ctf command line switch. */
#define SFRAME_DUMP (1 << 6) /* The --sframe command line switch. */
typedef unsigned char dump_type;
@ -233,6 +235,7 @@ static bool do_version = false;
static bool do_histogram = false;
static bool do_debugging = false;
static bool do_ctf = false;
static bool do_sframe = false;
static bool do_arch = false;
static bool do_notes = false;
static bool do_archive_index = false;
@ -5071,6 +5074,7 @@ enum long_option_values
OPTION_CTF_PARENT,
OPTION_CTF_SYMBOLS,
OPTION_CTF_STRINGS,
OPTION_SFRAME_DUMP,
OPTION_WITH_SYMBOL_VERSIONS,
OPTION_RECURSE_LIMIT,
OPTION_NO_RECURSE_LIMIT,
@ -5133,6 +5137,7 @@ static struct option options[] =
{"ctf-strings", required_argument, 0, OPTION_CTF_STRINGS},
{"ctf-parent", required_argument, 0, OPTION_CTF_PARENT},
#endif
{"sframe", optional_argument, 0, OPTION_SFRAME_DUMP},
{"sym-base", optional_argument, 0, OPTION_SYM_BASE},
{0, no_argument, 0, 0}
@ -5273,6 +5278,8 @@ usage (FILE * stream)
--ctf-strings=<number|name>\n\
Use section <number|name> as the CTF external strtab\n"));
#endif
fprintf (stream, _("\
--sframe[=NAME] Display SFrame info from section NAME, (default '.sframe')\n"));
#ifdef SUPPORT_DISASSEMBLY
fprintf (stream, _("\
@ -5546,6 +5553,19 @@ parse_args (struct dump_data *dumpdata, int argc, char ** argv)
free (dump_ctf_parent_name);
dump_ctf_parent_name = strdup (optarg);
break;
case OPTION_SFRAME_DUMP:
do_sframe = true;
/* Providing section name is optional. request_dump (), however,
thrives on non NULL optarg. Handle it explicitly here. */
if (optarg != NULL)
request_dump (dumpdata, SFRAME_DUMP);
else
{
do_dump = true;
const char *sframe_sec_name = strdup (".sframe");
request_dump_byname (sframe_sec_name, SFRAME_DUMP);
}
break;
case OPTION_DYN_SYMS:
do_dyn_syms = true;
break;
@ -15859,6 +15879,44 @@ dump_section_as_ctf (Elf_Internal_Shdr * section, Filedata * filedata)
}
#endif
static bool
dump_section_as_sframe (Elf_Internal_Shdr * section, Filedata * filedata)
{
void * data = NULL;
sframe_decoder_ctx *sfd_ctx = NULL;
const char *print_name = printable_section_name (filedata, section);
bool ret = true;
size_t sf_size;
int err = 0;
if (strcmp (print_name, "") == 0)
{
error (_("Section name must be provided \n"));
ret = false;
return ret;
}
data = get_section_contents (section, filedata);
sf_size = section->sh_size;
/* Decode the contents of the section. */
sfd_ctx = sframe_decode ((const char*)data, sf_size, &err);
if (!sfd_ctx)
{
ret = false;
error (_("SFrame decode failure: %s\n"), sframe_errmsg (err));
goto fail;
}
printf (_("Contents of the SFrame section %s:"), print_name);
/* Dump the contents as text. */
dump_sframe (sfd_ctx, section->sh_addr);
fail:
free (data);
return ret;
}
static bool
load_specific_debug_section (enum dwarf_section_display_enum debug,
const Elf_Internal_Shdr * sec,
@ -16365,6 +16423,11 @@ process_section_contents (Filedata * filedata)
res = false;
}
#endif
if (dump & SFRAME_DUMP)
{
if (! dump_section_as_sframe (section, filedata))
res = false;
}
}
if (! filedata->is_separate)

View File

@ -157,6 +157,9 @@ sframe_decoder_get_funcdesc (sframe_decoder_ctx *ctx,
int32_t *func_start_address,
unsigned char *func_info);
/* SFrame textual dump. */
extern void
dump_sframe (sframe_decoder_ctx *decoder, uint64_t addr);
/* Get the base reg id from the FRE info. Sets errp if fails. */
extern unsigned int

View File

@ -33,7 +33,7 @@ include_HEADERS =
noinst_LTLIBRARIES = libsframe.la
endif
libsframe_la_SOURCES = sframe.c sframe-error.c
libsframe_la_SOURCES = sframe.c sframe-dump.c sframe-error.c
libsframe_la_CPPFLAGS = $(AM_CPPFLAGS)
include testsuite/local.mk

View File

@ -149,7 +149,7 @@ am__installdirs = "$(DESTDIR)$(libdir)" "$(DESTDIR)$(includedir)"
LTLIBRARIES = $(lib_LTLIBRARIES) $(noinst_LTLIBRARIES)
libsframe_la_LIBADD =
am_libsframe_la_OBJECTS = libsframe_la-sframe.lo \
libsframe_la-sframe-error.lo
libsframe_la-sframe-dump.lo libsframe_la-sframe-error.lo
libsframe_la_OBJECTS = $(am_libsframe_la_OBJECTS)
AM_V_lt = $(am__v_lt_@AM_V@)
am__v_lt_ = $(am__v_lt_@AM_DEFAULT_V@)
@ -427,7 +427,7 @@ AM_CFLAGS = @ac_libsframe_warn_cflags@
@INSTALL_LIBBFD_FALSE@include_HEADERS =
@INSTALL_LIBBFD_TRUE@include_HEADERS = $(INCDIR)/sframe.h $(INCDIR)/sframe-api.h
@INSTALL_LIBBFD_FALSE@noinst_LTLIBRARIES = libsframe.la
libsframe_la_SOURCES = sframe.c sframe-error.c
libsframe_la_SOURCES = sframe.c sframe-dump.c sframe-error.c
libsframe_la_CPPFLAGS = $(AM_CPPFLAGS)
# Setup the testing framework
@ -607,6 +607,7 @@ mostlyclean-compile:
distclean-compile:
-rm -f *.tab.c
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libsframe_la-sframe-dump.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libsframe_la-sframe-error.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libsframe_la-sframe.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@testsuite/libsframe.decode/$(DEPDIR)/testsuite_libsframe_decode_be_flipping-be-flipping.Po@am__quote@
@ -645,6 +646,13 @@ libsframe_la-sframe.lo: sframe.c
@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
@am__fastdepCC_FALSE@ $(AM_V_CC@am__nodep@)$(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libsframe_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o libsframe_la-sframe.lo `test -f 'sframe.c' || echo '$(srcdir)/'`sframe.c
libsframe_la-sframe-dump.lo: sframe-dump.c
@am__fastdepCC_TRUE@ $(AM_V_CC)$(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libsframe_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT libsframe_la-sframe-dump.lo -MD -MP -MF $(DEPDIR)/libsframe_la-sframe-dump.Tpo -c -o libsframe_la-sframe-dump.lo `test -f 'sframe-dump.c' || echo '$(srcdir)/'`sframe-dump.c
@am__fastdepCC_TRUE@ $(AM_V_at)$(am__mv) $(DEPDIR)/libsframe_la-sframe-dump.Tpo $(DEPDIR)/libsframe_la-sframe-dump.Plo
@AMDEP_TRUE@@am__fastdepCC_FALSE@ $(AM_V_CC)source='sframe-dump.c' object='libsframe_la-sframe-dump.lo' libtool=yes @AMDEPBACKSLASH@
@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
@am__fastdepCC_FALSE@ $(AM_V_CC@am__nodep@)$(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libsframe_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o libsframe_la-sframe-dump.lo `test -f 'sframe-dump.c' || echo '$(srcdir)/'`sframe-dump.c
libsframe_la-sframe-error.lo: sframe-error.c
@am__fastdepCC_TRUE@ $(AM_V_CC)$(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libsframe_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT libsframe_la-sframe-error.lo -MD -MP -MF $(DEPDIR)/libsframe_la-sframe-error.Tpo -c -o libsframe_la-sframe-error.lo `test -f 'sframe-error.c' || echo '$(srcdir)/'`sframe-error.c
@am__fastdepCC_TRUE@ $(AM_V_at)$(am__mv) $(DEPDIR)/libsframe_la-sframe-error.Tpo $(DEPDIR)/libsframe_la-sframe-error.Plo

181
libsframe/sframe-dump.c Normal file
View File

@ -0,0 +1,181 @@
/* sframe-dump.c - Textual dump of .sframe.
Copyright (C) 2022 Free Software Foundation, Inc.
his file is part of libsframe.
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 <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <inttypes.h>
#include "sframe-impl.h"
#define SFRAME_HEADER_FLAGS_STR_MAX_LEN 50
static void
dump_sframe_header (sframe_decoder_ctx *sfd_ctx)
{
const char *verstr = NULL;
const sframe_header *header = &(sfd_ctx->sfd_header);
/* Prepare SFrame section version string. */
const char *version_names[]
= { "NULL",
"SFRAME_VERSION_1" };
unsigned char ver = header->sfh_preamble.sfp_version;
if (ver <= SFRAME_VERSION)
verstr = version_names[ver];
/* Prepare SFrame section flags string. */
unsigned char flags = header->sfh_preamble.sfp_flags;
char *flags_str
= (char*) calloc (sizeof (char), SFRAME_HEADER_FLAGS_STR_MAX_LEN);
if (flags)
{
const char *flag_names[]
= { "SFRAME_F_FDE_SORTED",
"SFRAME_F_FRAME_POINTER" };
unsigned char flags = header->sfh_preamble.sfp_flags;
if (flags & SFRAME_F_FDE_SORTED)
strcpy (flags_str, flag_names[0]);
if (flags & SFRAME_F_FRAME_POINTER)
{
if (strlen (flags_str) > 0)
strcpy (flags_str, ",");
strcpy (flags_str, flag_names[1]);
}
}
else
strcpy (flags_str, "NONE");
const char* subsec_name = "Header";
printf ("\n");
printf (" %s :\n", subsec_name);
printf ("\n");
printf (" Version: %s\n", verstr);
printf (" Flags: %s\n", flags_str);
printf (" Num FDEs: %d\n", header->sfh_num_fdes);
printf (" Num FREs: %d\n", header->sfh_num_fres);
free (flags_str);
}
static void
dump_sframe_func_with_fres (sframe_decoder_ctx *sfd_ctx,
unsigned int funcidx,
uint64_t sec_addr)
{
uint32_t j = 0;
uint32_t num_fres = 0;
uint32_t func_size = 0;
int32_t func_start_address = 0;
unsigned char func_info = 0;
uint64_t func_start_pc_vma = 0;
uint64_t fre_start_pc_vma = 0;
const char *base_reg_str[] = {"fp", "sp"};
int32_t cfa_offset = 0;
int32_t fp_offset = 0;
int32_t ra_offset = 0;
unsigned int base_reg_id = 0;
int err[3] = {0, 0, 0};
sframe_frame_row_entry fre;
/* Get the SFrame function descriptor. */
sframe_decoder_get_funcdesc (sfd_ctx, funcidx, &num_fres,
&func_size, &func_start_address, &func_info);
/* Calculate the virtual memory address for function start pc. */
func_start_pc_vma = func_start_address + sec_addr;
/* Mark FDEs with [m] where the FRE start address is interpreted as a
mask. */
int fde_type_addrmask_p = (SFRAME_V1_FUNC_FDE_TYPE (func_info)
== SFRAME_FDE_TYPE_PCMASK);
const char *fde_type_marker
= (fde_type_addrmask_p ? "[m]" : " ");
printf ("\n func idx [%d]: pc = 0x%"PRIx64 ", size = %d bytes",
funcidx,
func_start_pc_vma,
func_size);
char temp[100];
memset (temp, 0, 100);
printf ("\n %-7s%-8s %-10s%-10s%-10s", "STARTPC", fde_type_marker, "CFA", "FP", "RA");
for (j = 0; j < num_fres; j++)
{
sframe_decoder_get_fre (sfd_ctx, funcidx, j, &fre);
fre_start_pc_vma = (fde_type_addrmask_p
? fre.fre_start_addr
: func_start_pc_vma + fre.fre_start_addr);
/* FIXME - fixup the err caching in array.
assert no error for base reg id. */
base_reg_id = sframe_fre_get_base_reg_id (&fre, &err[0]);
cfa_offset = sframe_fre_get_cfa_offset (sfd_ctx, &fre, &err[0]);
fp_offset = sframe_fre_get_fp_offset (sfd_ctx, &fre, &err[1]);
ra_offset = sframe_fre_get_ra_offset (sfd_ctx, &fre, &err[2]);
/* Dump CFA info. */
printf ("\n");
printf (" %016"PRIx64, fre_start_pc_vma);
sprintf (temp, "%s+%d", base_reg_str[base_reg_id], cfa_offset);
printf (" %-10s", temp);
/* Dump SP/FP info. */
memset (temp, 0, 100);
if (err[1] == 0)
sprintf (temp, "c%+d", fp_offset);
else
strcpy (temp, "u");
printf ("%-10s", temp);
/* Dump RA info. */
memset (temp, 0, 100);
if (err[2] == 0)
sprintf (temp, "c%+d", ra_offset);
else
strcpy (temp, "u");
printf ("%-10s", temp);
}
}
static void
dump_sframe_functions (sframe_decoder_ctx *sfd_ctx, uint64_t sec_addr)
{
uint32_t i;
uint32_t num_fdes;
const char* subsec_name = "Function Index";
printf ("\n %s :\n", subsec_name);
num_fdes = sframe_decoder_get_num_fidx (sfd_ctx);
for (i = 0; i < num_fdes; i++)
{
dump_sframe_func_with_fres (sfd_ctx, i, sec_addr);
printf ("\n");
}
}
void
dump_sframe (sframe_decoder_ctx *sfd_ctx, uint64_t sec_addr)
{
dump_sframe_header (sfd_ctx);
dump_sframe_functions (sfd_ctx, sec_addr);
}