Commit Graph

208 Commits

Author SHA1 Message Date
H.J. Lu
4c1a5d8b71 x86: Also check if -fcf-protection works
When defaulting CET run-time support to auto, check if -fcf-protection
works.  Even if the stage1 GCC doesn't support -fcf-protection, since
the final GCC does, CET run-time support will be enabled by default if
binutils support CET.

config/

	PR bootstrap/95147
	* cet.m4 (GCC_CET_FLAGS): Also check if -fcf-protection works
	when defaulting to auto.

libatomic/

	PR bootstrap/95147
	* configure: Regenerated.

libbacktrace/

	PR bootstrap/95147
	* configure: Regenerated.

libgcc/

	PR bootstrap/95147
	* configure: Regenerated.

libgfortran/

	PR bootstrap/95147
	* configure: Regenerated.

libgomp/

	PR bootstrap/95147
	* configure: Regenerated.

libitm/

	PR bootstrap/95147
	* configure: Regenerated.

libobjc/

	PR bootstrap/95147
	* configure: Regenerated.

libphobos/

	PR bootstrap/95147
	* configure: Regenerated.

libquadmath/

	PR bootstrap/95147
	* configure: Regenerated.

libsanitizer/

	PR bootstrap/95147
	* configure: Regenerated.

libssp/

	PR bootstrap/95147
	* configure: Regenerated.

libstdc++-v3/

	PR bootstrap/95147
	* configure: Regenerated.

libvtv/

	PR bootstrap/95147
	* configure: Regenerated.

zlib/

	PR bootstrap/95147
	* configure: Regenerated.
2020-05-15 09:07:17 -07:00
H.J. Lu
8d286dd118 x86: Default CET run-time support to auto
CET has been added since GCC 8.  This patch defaults CET run-time support
to auto.  It enables CET run-time support if asssembler supports CET
instructions and multi-byte NOPs are enabled via SSE2.

config/

	* cet.m4 (GCC_CET_FLAGS): Change default to auto.

gcc/

	* configure: Regenerated.

libatomic/

	* configure: Regenerated.

libbacktrace/

	* configure: Regenerated.

libcc1/

	* configure: Regenerated.

libcpp/

	* configure: Regenerated.

libdecnumber/

	* configure: Regenerated.

libgcc/

	* configure: Regenerated.

libgfortran/

	* configure: Regenerated.

libgomp/

	* configure: Regenerated.

libitm/

	* configure: Regenerated.

libobjc/

	* configure: Regenerated.

libquadmath/

	* configure: Regenerated.

libsanitizer/

	* configure: Regenerated.

libssp/

	* configure: Regenerated.

libstdc++-v3/

	* configure: Regenerated.

libvtv/

	* configure: Regenerated.

zlib/

	* configure: Regenerated.
2020-05-14 09:05:02 -07:00
Ian Lance Taylor
d2ec278682 libbacktrace: mark test_large parameter unused in ztest.c
libbacktrace/
	* ztest.c (test_large): Mark state ATTRIBUTE_UNUSED.
2020-05-13 11:09:53 -07:00
Ian Lance Taylor
702adbb2ff libbacktrace: treat EACCESS like ENOENT
libbacktrace/
	PR go/95061
	* posix.c (backtrace_open): Treat EACCESS like ENOENT.
2020-05-13 10:19:58 -07:00
H.J. Lu
d214864835 libbacktrace: Enable Intel CET on Intel CET enabled host for jit
Since on Intel CET enabled host, dlopen in Intel CET enabled applications
fails on shared libraries which aren't Intel CET enabled, compile with
-fcf-protection on Intel CET enabled host when jit is enabled to enable
Intel CET on libgccjit.

	* Makefile.am (AM_CFLAGS): Add $(CET_HOST_FLAGS).
	* configure.ac: Add GCC_CET_HOST_FLAGS(CET_HOST_FLAGS) and
	AC_SUBST(CET_HOST_FLAGS).  Clear CET_HOST_FLAGS if jit isn't
	enabled.
	* Makefile.in: Regenerated.
	* configure: Likewise.
2020-05-12 09:24:09 -07:00
Ian Lance Taylor
47f4703c33 libbacktrace: declare getpagesize if necessary
libbacktrace/
	PR libbacktrace/95012
	* configure.ac: Check for getpagesize declaration.
	* mmap.c: Declare getpagesize if necessary.
	* mmapio.c: Likewise.
2020-05-11 10:51:59 -07:00
Ian Lance Taylor
ef6394205d libbacktrace: don't crash if ELF file has no sections
libbacktrace/
	* elf.c (elf_add): Bail early if there are no section headers at all.
2020-05-09 20:34:25 -07:00
Ian Lance Taylor
8600440e14 libbacktrace: don't free ELF strtab if error occurs after saving syminfo
* elf.c (elf_add): Don't free strtab if an error occurs after
	recording symbol information.
2020-05-09 16:12:48 -07:00
Ian Lance Taylor
dea40c941a libbacktrace: add Mach-O support
libbacktrace/
	PR libbacktrace/88745
	* macho.c: New file.
	* filetype.awk: Recognize Mach-O files.
	* Makefile.am (FORMAT_FILES): Add macho.c.
	(check_DATA): New variable.  Set to .dSYM if HAVE_DSYMUTIL.
	(%.dSYM): New pattern target.
	(test_macho_SOURCES, test_macho_CFLAGS): New targets.
	(test_macho_LDADD): New target.
	(BUILDTESTS): Add test_macho.
	(macho.lo): Add dependencies.
	* configure.ac: Recognize macho file type.  Check for
	mach-o/dyld.h.  Don't try to run objcopy if we don't find it.
	Look for dsymutil and define a HAVE_DSYMUTIL conditional.
	* Makefile.in: Regenerate.
	* configure: Regenerate.
	* config.h.in: Regenerate.
2020-05-09 16:09:37 -07:00
Ian Lance Taylor
4b26b13871 libbacktrace: support short read
* read.c (backtrace_get_view): Support short read.
2020-05-09 16:02:05 -07:00
Ian Lance Taylor
31ae7b863a libbacktrace: sometimes read debug sections individually
libbacktrace/
	* elf.c (elf_add): If debug sections are very large or far apart,
	read them individually rather than as a single view.
2020-05-09 16:00:54 -07:00
Ian Lance Taylor
261356844a libbacktrace: support fetching executable name using sysctl
This supports FreeBSD and NetBSD when /proc is not mounted.

libbacktrace/
	* fileline.c (sysctl_exec_name): New static function.
	(sysctl_exec_name1): New macro or static function.
	(sysctl_exec_name2): Likewise.
	(fileline_initialize): Try sysctl_exec_name[12].
	* configure.ac: Check for sysctl args to fetch executable name.
	* configure: Regenerate.
	* config.h.in: Regenerate.
2020-05-09 15:20:13 -07:00
Ian Lance Taylor
9a3d019a74 libbacktrace: update to current libgo test file
* ztest.c (test_large): Update file to current libgo test file.
2020-02-15 18:25:13 -08:00
Ian Lance Taylor
628ee3c2f3 libbacktrace: always pass -g when compiling test code
This approach required adding a few casts to ztest.c, as it is now
compiled with -Wall.

Fixes PR libbacktrace/90636
2020-02-03 18:13:28 -08:00
Jakub Jelinek
8d9254fc8a Update copyright years.
From-SVN: r279813
2020-01-01 12:51:42 +01:00
Ian Lance Taylor
c926fd82bb libbacktrace: add DWARF 5 support
* dwarf.c (struct attr): Add val field.
	(enum attr_val_encoding): Add ATTR_VAL_ADDDRESS_INDEX,
	ATTR_VAL_STRING_INDEX, ATTR_VAL_RNGLISTS_INDEX.
	(struct line_header): Add addrsize field.
	(struct line_header_format): Define.
	(struct unit): Add str_offsets_base, addr_base, and rnglists_base
	fields.
	(read_uint24): New static function.
	(read_attribute): Add implicit_val parameter.  Replace dwarf_str
	and dwarf_str_size parameters with dwarf_sections parameter.  Add
	support for new DWARF 5 forms.  Change all callers.
	(resolve_string): New static function.
	(resolve_addr_index): Likewise.
	(read_abbrevs): Support DW_FORM_implicit_const.
	(struct pcrange): Add lowpc_is_addr_index, highpc_is_addr_Index,
	and ranges_is_index fields.
	(update_pcrange): Support DWARF 5 encodings.
	(add_high_low_range): New static function, split out of
	add_ranges.
	(add_ranges_from_ranges): Likewise.
	(add_ranges_from_rnglists): New static function.
	(add_ranges): Just call new helper functions.
	(find_address_ranges): Use resolve_string for strings, after
	reading all attributes.  Handle new DWARF 5 attributes.
	(build_address_map): Support DWARF 5 compilation units.
	(read_v2_paths): New static function, split out of
	read_line_header.
	(read_lnct): New static	function.
	(read_line_header_format_entries): Likewise.
	(read_line_header): Add ddata parameter.  Support DWARF 5 line
	headers.  Call new helper functions.  Change all callers.
	(read_line_program): Use addrsize from line program header.  Don't
	special case directory index 0 for DWARF 5.
	(read_referenced_name): Use resolve_string.
	(read_function_entry): Handle DWARF 5 encodings.  Use
	resolve_string.
	* internal.h (enum dwarf_section): Add DEBUG_ADDR,
	DEBUG_STR_OFFSETS, DEBUG_LINE_STR, DEBUG_RNGLISTS.
	* elf.c (dwarf_section_names): Add new section names.
	* pecoff.c (dwarf_section_names): Likewise.
	* xcoff.c (xcoff_add): Clear dwarf_sections before setting
	fields.
	* configure.ac: Define HAVE_DWARF5 automake conditional.
	* Makefile.am (dwarf5_SOURCES): New variable if HAVE_DWARF5.
	(dwarf5_CFLAGS, dwarf5_LDADD): Likewise.
	(dwarf5_alloc_SOURCES, dwarf5_alloc_CFLAGS): Likewise.
	(dwarf5_alloc_LDADD): Likewise.
	(BUILDTESTS): Add dwarf5 tests if HAVE_DWARF5.
	(CLEANFILES, clean-local): Define.

From-SVN: r279380
2019-12-13 20:04:47 +00:00
Ian Lance Taylor
4b3fc18803 libbacktrace: remove duplicate low_pc/high_pc/range handling
* dwarf.c (struct pcrange): Define.
	(update_pcrange, add_ranges): New static functions.
	(add_unit_addr): Change signature to work with add_ranges.  Don't
	add base_address here.
	(add_unit_ranges): Remove.
	(find_address_ranges): Replace str/ranges parameters with
	dwarf_sections.  Use update_pcrange and add_ranges.  Change all
	callers.
	(add_function_range): Change signature to work with add_ranges.
	Don't add base_address here.
	(add_function_ranges): Remove.
	(read_function_entry): Use update_pcrange and add_ranges.

From-SVN: r279154
2019-12-10 03:41:49 +00:00
Ian Lance Taylor
70bfe5a714 * edtest.c (test1): Add noclone attribute.
From-SVN: r278985
2019-12-05 03:56:40 +00:00
Ian Lance Taylor
66ab583969 libbacktrace: simplify DWARF section handling
This is in preparation for adding DWARF 5 support.

	* internal.h (enum dwarf_section): Define.
	(struct dwarf_sections): Define.
	(backtrace_dwarf_add): Update declaration to replace specific
	section parameters with dwarf_sections parameter.
	* dwarf.c (struct dwarf_data): Replace specific section fields
	with dwarf_sections field.
	(read_attribute): Use dwarf_sections with altlink.
	(build_address_map): Replace specific section parameters with
	dwarf_sections parameter.  Change all callers.
	(read_line_info): Use dwarf_sections with ddata.
	(read_referenced_name): Likewise.
	(add_function_ranges): Likewise.
	(read_function_entry): Likewise.
	(read_function_info): Likewise.
	(build_dwarf_data): Replace specific section parameters with
	dwarf_sections parameter.  Change all callers.
	(backtrace_dwarf_add): Likewise.
	* elf.c (enum debug_section): Remove.
	(dwarf_section_names): Remove .zdebug names.
	(elf_add): Track zsections separately.  Build dwarf_sections.
	* pecoff.c (enum debug_section): Remove.
	(struct debug_section_info): Remove data field.
	(coff_add): Build dwarf_sections.
	* xcoff.c (enum dwarf_section): Remove.  Replace DWSECT_xxx
	references with DEBUG_xxx references.
	(xcoff_add): Build dwarf_sections.

From-SVN: r278984
2019-12-05 02:20:11 +00:00
Maciej W. Rozycki
e9085da528 Regenerate configure' scripts for uclinuxfdpiceabi' libtool.m4 update
A change made with r275564 ("[ARM/FDPIC v6 02/24] [ARM] FDPIC: Handle 
arm*-*-uclinuxfdpiceabi in configure scripts") to libtool.m4 has not 
regenerated all the `configure' scripts affected.  Fix it.

	gcc/
	* configure: Regenerate.

	libatomic/
	* configure: Regenerate.

	libbacktrace/
	* configure: Regenerate.

	libcc1/
	* configure: Regenerate.

	libffi/
	* configure: Regenerate.

	libgfortran/
	* configure: Regenerate.

	libgomp/
	* configure: Regenerate.

	libhsail-rt/
	* configure: Regenerate.

	libitm/
	* configure: Regenerate.

	libobjc/
	* configure: Regenerate.

	liboffloadmic/
	* configure: Regenerate.

	libphobos/
	* configure: Regenerate.

	libquadmath/
	* configure: Regenerate.

	libsanitizer/
	* configure: Regenerate.

	libssp/
	* configure: Regenerate.

	libstdc++-v3/
	* configure: Regenerate.

	libvtv/
	* configure: Regenerate.

	lto-plugin/
	* configure: Regenerate.

	zlib/
	* configure: Regenerate.

From-SVN: r276213
2019-09-27 21:24:42 +00:00
Ian Lance Taylor
5fe5f75fcf re PR libbacktrace/91908 (New libbacktrace tests fail to build)
PR libbacktrace/91908
	* pecoff.c (backtrace_initialize): Explicitly cast unchecked
	__sync_bool_compare_and_swap to void.
	* xcoff.c (backtrace_initialize): Likewise.

From-SVN: r276168
2019-09-26 22:19:47 +00:00
Ulrich Weigand
2f2aeda98f Remove Cell Broadband Engine SPU targets
From-SVN: r275343
2019-09-03 15:08:28 +00:00
Clement Chigot
245254b8bb Makefile.am (BUILDTESTS): Remove test_elf, add test_elf_32 and test_elf_64.
* Makefile.am (BUILDTESTS): Remove test_elf, add test_elf_32 and
	test_elf_64.
	* Makefile.in: Regenerate.

From-SVN: r271602
2019-05-24 11:55:21 +00:00
Rainer Orth
ccd1242eec Remove obsolete Solaris 10 support
libstdc++-v3:
	* config/os/solaris/solaris2.10: Move to ...
	* config/os/solaris: ... this.
	* configure.host (os_include_dir): Adapt.
	(abi_baseline_pair): Remove Solaris 10 handling.
	* config/abi/post/i386-solaris2.10: Remove.
	* config/abi/post/sparc-solaris2.10: Remove.
	* config/abi/post/i386-solaris2.11: Rename to ...
	* config/abi/post/i386-solaris: ... this.
	* config/abi/post/sparc-solaris2.11: Rename to ...
	* config/abi/post/sparc-solaris: ... this.

	* libsupc++/new_opa.cc [_GLIBCXX_HAVE_MEMALIGN] [__sun]: Remove
	workaround.

	* testsuite/ext/enc_filebuf/char/13598.cc: Remove *-*-solaris2.10
	xfail.

	libsanitizer:
	* configure.ac (have_dl_iterate_phdr): Remove *-*-solaris2.10*
	handling.
	* configure: Regenerate.

	libgcc:
	* config.host: Simplify various *-*-solaris2.1[0-9]* to
	*-*-solaris2*.
	* configure.ac: Likewise.
	* configure: Regenerate.

	* config/i386/sol2-unwind.h (x86_fallback_frame_state): Remove
	Solaris 10 and Solaris 11 < snv_125 handling.

	libbacktrace:
	* configure.ac (have_dl_iterate_phdr): Remove *-*-solaris2.10*
	handling.
	* configure: Regenerate.

	gcc/testsuite:
	* gcc.dg/atomic/c11-atomic-exec-4.c: Simplify triplet to
	*-*-solaris2*.
	* gcc.dg/atomic/c11-atomic-exec-5.c: Likewise.
	* gcc.dg/c99-math-double-1.c: Likewise.
	* gcc.dg/c99-math-float-1.c: Likewise.
	* gcc.dg/c99-math-long-double-1.c: Likewise.
	* gcc.misc-tests/linkage.exp: Simplify triplet to
	x86_64-*-solaris2*.

	* gcc.target/i386/mcount_pic.c: Remove *-*-solaris2.10* && !gld
	xfail.
	* gcc.target/i386/pr63620.c: Likewise.

	* lib/target-supports.exp (check_sse_os_support_available): Remove
	Solaris 9/x86 workaround.

	gcc:
	* config.gcc: Move *-*-solaris2.10* from obsolete configurations
	to unsupported ones.
	Simplify x86_64-*-solaris2.1[0-9]* to x86_64-*-solaris2*.
	* config.host: Likewise.
	* config/i386/sol2.h (ASM_COMMENT_START): Remove.
	* config/sparc/driver-sparc.c (host_detect_local_cpu) [__sun__ &&
	__svr4__]: Remove "brand" fallback.
	[!KSTAT_DATA_STRING]: Remove.
	* configure.ac (gcc_cv_ld_hidden): Simplify *-*-solaris2.1[0-9]*
	to *-*-solaris2*.
	(comdat_group): Likewise.
	(set_have_as_tls): Likewise.
	(gcc_cv_target_dl_iterate_phdr): Likewise.
	(gcc_cv_as_shf_merge): Remove Solaris 10/x86 workaround.
	(gcc_cv_ld_aligned_shf_merge): Remove Solaris 10/SPARC workaround.
	* configure: Regenerate.
	* doc/install.texi: Simplify Solaris target triplets.
	(Specific, i?86-*-solaris2*): Remove Solaris 10 references.
	(Specific, *-*-solaris2*): Document Solaris 10 removal.
	Remove Solaris 10 references.
	Remove obsolete Solaris bug reference.
	(Specific, sparc-sun-solaris2.10): Remove.

From-SVN: r271183
2019-05-14 17:17:23 +00:00
Ian Lance Taylor
7856fb4539 re PR libbacktrace/89669 (/usr/ccs/bin/ld: Unsatisfied symbols: backtrace_uncompress_zdebug)
PR libbacktrace/89669
	* Makefile.am (BUILDTESTS): Only add ztest and ztest_alloc if
	HAVE_ELF.
	* Makefile.in: Regenerate.

From-SVN: r269594
2019-03-11 20:40:34 +00:00
Tom de Vries
067aef033f [libbacktrace] Fix btest-lto for older gcc
With gcc 4.8.5, btest_lto ends up with a privatized name for the variable with
name 'global':
...
$ nm btest_lto | grep ' d ' | grep global
0000000000617150 d global.2530
...
which makes test5 fail:
...
    test5: unexpected syminfo name got global.2530 expected global
...

Fix this failure by accepting this type of name as a valid name in btest_lto.

2019-02-26  Tom de Vries  <tdevries@suse.de>

	* btest.c (test5): Allow global.* as minimal symbol name for global.

From-SVN: r269217
2019-02-26 16:09:40 +00:00
Tom de Vries
d831b1ec03 [libbacktrace] Require dwz for b3test_dwz_buildid
If dwz is not available, then the libbacktrace test b3test_dwz_buildid fails
like this:
...
gmake[4]: *** No rule to make target 'b3test_dwz_buildid'
...

Fix this by guarding the test with HAVE_DWZ.

Tested on x86_64 with and without dwz installed.

2019-02-26  Tom de Vries  <tdevries@suse.de>

	* Makefile.am (TESTS): Only add b3test_dwz_buildid if HAVE_DWZ.
	* Makefile.in: Regenerate.

From-SVN: r269204
2019-02-26 07:54:57 +00:00
Tom de Vries
68641fb77c [libbacktrace] Handle bsearch with NULL base in dwarf_lookup_pc
The call to bsearch in dwarf_lookup_pc can have NULL as base argument when
the nmemb argument is 0.  The base argument is required to be pointing to the
initial member of an array of nmemb objects.  It is not specified what
constitutes a valid pointer to an array of 0 objects, but glibc declares base
with attribute non-null, so the NULL will trigger a sanitizer runtime error.

Fix this by only calling bsearch if nmemb != 0.

2019-02-12  Tom de Vries  <tdevries@suse.de>

	PR libbacktrace/81983
	* dwarf.c (dwarf_lookup_pc): Don't call bsearch if nmemb == 0.

From-SVN: r268796
2019-02-12 14:00:59 +00:00
Tom de Vries
c51b2c8ce3 [libbacktrace] Add btest_lto
Add libbacktrace test-case using -flto.

2019-02-10  Tom de Vries  <tdevries@suse.de>

	* Makefile.am (BUILDTESTS): Add btest_lto.
	* Makefile.in: Regenerate.
	* btest.c (test1, f2, f3, test3, f22, f23): Declare with
	__attribute__((noclone)).

From-SVN: r268736
2019-02-10 03:16:09 +00:00
Tom de Vries
4af50e13a0 [libbacktrace] Declare external backtrace fns noinline
The backtrace functions backtrace_full, backtrace_print and backtrace_simple
walk the call stack, but make sure to skip the first entry, in order to skip
over the functions themselves, and start the backtrace at the caller of the
functions.

When compiling with -flto, the functions may be inlined, causing them to skip
over the caller instead.

Fix this by declaring the functions with __attribute__((noinline)).

2019-02-08  Tom de Vries  <tdevries@suse.de>

	* backtrace.c (backtrace_full): Declare with __attribute__((noinline)).
	* print.c (backtrace_print): Same.
	* simple.c (backtrace_simple): Same.

From-SVN: r268668
2019-02-08 09:49:06 +00:00
Tom de Vries
2bd0a246c6 [libbacktrace] Handle DW_FORM_ref_addr
Add handling of the DW_FORM_ref_addr encoding to libbacktrace.

2019-02-08  Tom de Vries  <tdevries@suse.de>

	PR libbacktrace/78063
	* dwarf.c (build_address_map): Keep all parsed units.
	(read_referenced_name_from_attr): Handle DW_FORM_ref_addr.

From-SVN: r268663
2019-02-08 05:55:44 +00:00
Tom de Vries
3a3f5dd1af [libbacktrace] Fix .gnu_debugaltlink build-id check
The 'debugaltlink_name_len =+ 1' bug reported in PR89136 exposes the fact that
the build-id is not verified for the .gnu_debugaltlink.

Fix both problems.

2019-01-31  Tom de Vries  <tdevries@suse.de>

	PR libbacktrace/89136
	* elf.c (elf_add): Read build-id if with_buildid_data.  Fix
	'debugaltlink_name_len =+ 1'.

From-SVN: r268419
2019-01-31 12:17:32 +00:00
Tom de Vries
fddbc19325 [libbacktrace] Add test-cases exercising build-id and dwz
Add test-cases b2test_buildid and b3test_dwz_buildid.

The last one triggers the segfault fixed by "[backtrace] Avoid segfault"
( r268275 ).

2019-01-29  Tom de Vries  <tdevries@suse.de>

	* install-debuginfo-for-buildid.sh.in: New script.
	* Makefile.am (check_PROGRAMS): Add b2test and b3test.
	(TESTS): Add b2test_buildid and b3test_dwz_buildid.
	* Makefile.in: Regenerate.
	* configure.ac (HAVE_ELF): Set with AM_CONDITIONAL.
	(READELF): Set with AC_CHECK_PROG.
	(install-debuginfo-for-buildid.sh): Generate with AC_CONFIG_FILES.
	* configure: Regenerate.
	* elf.c (SYSTEM_BUILD_ID_DIR): Factor out of ...
	(elf_open_debugfile_by_buildid): ... here.

From-SVN: r268369
2019-01-29 16:25:46 +00:00
Tom de Vries
57f0d30384 [libbacktrace] Don't assign check_PROGRAMS to TESTS
In automake files, the check_PROGRAMS variable lists programs that need to be
build for testing, and TESTS lists the programs that need to be run.

The libbacktrace/Makefile.am uses a shortcut:
...
TESTS = $(check_PROGRAMS)
...
to make sure that each program added with:
...
check_PROGRAMS += foo
...
is both build and run.

However, for the allocfail.sh test, we need allocfail to be build and
allocfail.sh to be run:
...
check_PROGRAMS += allocfail
TESTS += allocfail.sh
...
but the shortcut causes allocfail also to be run, which is not required.

Fix this by removing the short-cut, allowing check_PROGRAMS to retain its
original semantics, and introducing a variable BUILDTESTS for programs that
need to be both build and run.

2019-01-29  Tom de Vries  <tdevries@suse.de>

	* Makefile.am: Replace check_PROGRAMS with BUILDTESTS, except for
	allocfail.
	(TESTS): Don't add check_PROGRAMS. Add BUILDTESTS.
	(check_PROGRAMS): Add BUILDTESTS.
	* Makefile.in: Regenerate.

From-SVN: r268360
2019-01-29 07:22:16 +00:00
Tom de Vries
62d4a355b7 [libbacktrace] Fix and simplify xcoff_%.c pattern rule
When generating xcoff_%.c, the last command is a sed command.  In case of a
sed failure, this will leave an incomplete file, which will appear as up to
date to make, so consequently it will not be regenerated.  Fix this by
sedding into a temporary file instead.

Also, use $< to access the prerequisite xcoff.c, instead of spelling out the
file name once more.

2019-01-28  Tom de Vries  <tdevries@suse.de>

	* Makefile.am (xcoff_%.c): Generate sed result into temporary file.
	Use $< to access prerequisite.
	* Makefile.in: Regenerate.

From-SVN: r268344
2019-01-28 22:21:19 +00:00
Nathan Sidwell
4bfcd13938 [backtrace] Avoid segfault
https://gcc.gnu.org/ml/gcc-patches/2019-01/msg01521.html

	* elf.c (elf_add): Pass "" filename to recursive call with
	separated debug.

From-SVN: r268275
2019-01-25 17:16:53 +00:00
Tom de Vries
c75795fa1d [libbacktrace] Fix strrchr segfault
Currently, when running a libbacktrace testcase t with .gnu_debuglink to
t.debug, and t.debug having a .gnu_debugaltlink to t.alt.debug, a segfault
is triggered when calling strrchr with a NULL string from
elf_find_debugfile_by_debuglink.  The NULL string originates from the elf_add
called for the .gnu_debugaltlink, which uses NULL as filename argument.

Fix this by using "" as filename argument instead.

2019-01-25  Tom de Vries  <tdevries@suse.de>

	* elf.c (elf_add): When handling .gnu_debugaltlink, call elf_add with
	filename == "".
	* Makefile.am (TESTS): Add btest_dwz_gnudebuglink.
	* Makefile.in: Regenerate.

From-SVN: r268269
2019-01-25 14:39:58 +00:00
Tom de Vries
37ab491dce [libbacktrace] Rename dtest to btest_gnudebuglink
Create a pattern rule for copying an existing test-case, separating out the
debug information into a .debug file, and referencing the .debug file from
the copied test-case using a .gnu_debuglink.

2019-01-25  Tom de Vries  <tdevries@suse.de>

	* Makefile.am: Rewrite dtest rule into "%_gnudebuglink" pattern rule.
	(TESTS): Rename dtest to btest_gnudebuglink.
	* Makefile.in: Regenerate.

From-SVN: r268268
2019-01-25 14:39:47 +00:00
Tom de Vries
3f5d2012fb [libbacktrace] Use size_t for low_offset/high_offset fields of struct unit
2019-01-23  Tom de Vries  <tdevries@suse.de>

	* dwarf.c (struct unit): Use size_t for low_offset/high_offset fields.
	(units_search, find_unit): Use size_t for offset.
	(build_address_map): Use size_t for unit_offset.

From-SVN: r268180
2019-01-23 10:22:43 +00:00
Gerald Pfeifer
5e2a724199 * allocfail.c (main): Increase portability of printf statement.
From-SVN: r268105
2019-01-20 15:09:02 +00:00
Ian Lance Taylor
8b248c17bd re PR libbacktrace/88890 (libbacktrace on 32-bit system with _FILE_OFFSET_BITS == 64)
PR libbacktrace/88890
	* mmapio.c (backtrace_get_view): Change size parameter to
	uint64_t.  Check that value fits in size_t.
	* read.c (backtrace_get_view): Likewise.
	* internal.h (backtrace_get_view): Update declaration.
	* elf.c (elf_add): Pass shstrhdr->sh_size to backtrace_get_view.

From-SVN: r268082
2019-01-18 17:13:59 +00:00
Tom de Vries
10f48858e8 [libbacktrace] Add btest_dwz test-case
Add test-case to verify that libbacktrace can read debug info that was
compressed with dwz.

2019-01-17  Tom de Vries  <tdevries@suse.de>

	PR libbacktrace/82857
	* configure.ac (DWZ): Set with AC_CHECK_PROG.
	(HAVE_DWZ): Set with AM_CONDITIONAL.
	* configure: Regenerate.
	* Makefile.am (TESTS): Add btest_dwz.
	* Makefile.in: Regenerate.

From-SVN: r268032
2019-01-17 13:42:30 +00:00
Tom de Vries
1c2a9a37c6 [libbacktrace] Handle DW_FORM_GNU_ref_alt
Handle DW_FORM_GNU_ref_alt which references the .debug_info section in the
.gnu_debugaltlink file.

2019-01-17  Tom de Vries  <tdevries@suse.de>

	PR libbacktrace/82857
	* dwarf.c (enum attr_val_encoding): Add ATTR_VAL_REF_ALT_INFO.
	(read_attribute): Handle DW_FORM_GNU_ref_alt using
	ATTR_VAL_REF_ALT_INFO.
	(read_referenced_name_from_attr): Handle DW_FORM_GNU_ref_alt.

From-SVN: r268031
2019-01-17 13:42:20 +00:00
Tom de Vries
9d576782a2 [libbacktrace] Add find_unit
Add a function that finds the unit given an offset into .debug_info.

2019-01-17  Tom de Vries  <tdevries@suse.de>

	* dwarf.c (struct unit): Add low_offset and high_offset fields.
	(struct unit_vector): New type.
	(struct dwarf_data): Add units and units_counts fields.
	(find_unit): New function.
	(find_address_ranges): Add and handle unit_tag parameter.
	(build_address_map): Add and handle units_vec parameter.
	(build_dwarf_data): Pass units_vec to build_address_map.  Store resulting
	units vector.

From-SVN: r268030
2019-01-17 13:42:09 +00:00
Tom de Vries
f2f00d3a04 [libbacktrace] Handle DW_FORM_GNU_strp_alt
Handle DW_FORM_GNU_strp_alt which references the .debug_str section in the
.gnu_debugaltlink file.

2019-01-17  Tom de Vries  <tdevries@suse.de>

	PR libbacktrace/82857
	* dwarf.c (read_attribute): Handle DW_FORM_GNU_strp_alt
	using altlink.

From-SVN: r267996
2019-01-17 00:08:05 +00:00
Tom de Vries
944f59ffe2 [libbacktrace] Handle alt FORMS without .gnu_debugaltlink
Handle DW_FORM_GNU_strp_alt and DW_FORM_GNU_ref_alt references robustly in
presence of missing .gnu_debugaltlink file.

2019-01-17  Tom de Vries  <tdevries@suse.de>

	* dwarf.c (enum attr_val_encoding): Add ATTR_VAL_NONE.
	(read_attribute): Add altlink parameter.  Handle missing altlink for
	DW_FORM_GNU_strp_alt and DW_FORM_GNU_ref_alt.
	(find_address_ranges, build_address_map, build_dwarf_data): Add and
	handle altlink parameter.
	(read_referenced_name, read_function_entry): Add argument to
	read_attribute call.

From-SVN: r267995
2019-01-17 00:07:53 +00:00
Tom de Vries
9ad458d539 [libbacktrace] Add altlink field to struct dwarf_data
Add an altlink field to struct dwarf_data, and initialize it with the pointer
to the struct dwarf_data for the .gnu_debugaltlink.

2019-01-17  Tom de Vries  <tdevries@suse.de>

	* dwarf.c (struct dwarf_data): Add altlink field.
	(backtrace_dwarf_add): Add and handle fileline_altlink parameter.
	* elf.c	(elf_add): Add argument to backtrace_dwarf_add call.
	(phdr_callback, backtrace_initialize): Add argument to elf_add calls.
	* internal.h (backtrace_dwarf_add): Add fileline_altlink parameter.
	* pecoff.c (coff_add): Add argument to backtrace_dwarf_add call.
	* xcoff.c (xcoff_add): Same.

From-SVN: r267994
2019-01-17 00:07:43 +00:00
Tom de Vries
e6f00c83f4 [libbacktrace] Return struct dwarf_data pointer from elf_add
Allow the caller of elf_add access to the struct dwarf_data pointer
corresponding to the added elf.

2019-01-17  Tom de Vries  <tdevries@suse.de>

	* internal.h (backtrace_dwarf_add): Add fileline_entry parameter.
	* dwarf.c (backtrace_dwarf_add): Add and handle fileline_entry parameter.
	* elf.c	(elf_add): Add and handle fileline_entry parameter.  Add
	argument to backtrace_dwarf_add call.
	(phdr_callback, backtrace_initialize): Add argument to elf_add calls.
	* pecoff.c (coff_add): Add argument to backtrace_dwarf_add call.
	* xcoff.c (xcoff_add): Same.

From-SVN: r267993
2019-01-17 00:07:32 +00:00
Tom de Vries
a34c2a3d19 [libbacktrace] Read .gnu_debugaltlink
Read the elf file pointed at by the .gnu_debugaltlink section, and verify that
the build id matches.

2019-01-17  Tom de Vries  <tdevries@suse.de>

	* elf.c (elf_add): Add and handle with_buildid_data and
	with_buildid_size parameters.  Handle .gnu_debugaltlink section.
	(phdr_callback, backtrace_initialize): Add arguments to elf_add calls.

From-SVN: r267992
2019-01-17 00:07:21 +00:00
Tom de Vries
07e1534f44 [libbacktrace] Factor out read_referenced_name_from_attr
Factor out the common handling of DW_AT_abstract_origin and
DW_AT_specification from read_function_entry and read_referenced_name.

2019-01-16  Tom de Vries  <tdevries@suse.de>

	* dwarf.c (read_referenced_name_from_attr): New function.  Factor out
	of ...
 	(read_referenced_name): ... here, and ...
	(read_function_entry): ... here.

From-SVN: r267986
2019-01-16 20:47:02 +00:00