ENDBR32 and RDSSPD are multi-byte NOPs on x86-64 processors and
newer x86 processors, starting Pentium Pro. They are UD on older
32-bit processors. Detect this at configure time and adjust the
default value for enable_cet. GCC will enable CET in 32-bit run-time
libraries in any case if --enable-cet is used to configure GCC.
PR target/84148
* config/cet.m4: Check if target support multi-byte NOPS (SSE).
* libatomic/configure: Regenerate.
* libbacktrace/configure: Likewise.
* libgcc/configure: Likewise.
* libgfortran/configure: Likewise.
* libgomp/configure: Likewise.
* libitm/configure: Likewise.
* libmpx/configure: Likewise.
* libobjc/configure: Likewise.
* libquadmath/configure: Likewise.
* libsanitizer/configure: Likewise.
* libssp/configure: Likewise.
* libstdc++-v3/configure: Likewise.
* libvtv/configure: Likewise.
From-SVN: r257809
PR other/82368
* elf.c (EM_PPC64, EF_PPC64_ABI): Undefine and define.
(struct elf_ppc64_opd_data): New type.
(elf_initialize_syminfo): Add opd argument, handle symbols
pointing into the PowerPC64 ELFv1 .opd section.
(elf_add): Read .opd section on PowerPC64 ELFv1, pass pointer
to structure with .opd data to elf_initialize_syminfo.
From-SVN: r257658
* elf.c (elf_add): Close descriptor if we use a debugfile.
* btest.c (check_open_files): New static function.
(main): Call check_open_files.
From-SVN: r257275
* elf.c (elf_open_debugfile_by_debuglink): Don't check CRC if the
desired CRC is zero.
(elf_add): Don't clear *found_sym and *found_dwarf if debuginfo.
From-SVN: r257062
* xcoff.c (xcoff_incl_compare): New function.
(xcoff_incl_search): New function.
(xcoff_process_linenos): Use bsearch to find include file.
(xcoff_initialize_fileline): Sort include file information.
From-SVN: r256895
* elf.c (codes) [GENERATE_FIXED_HUFFMAN_TABLE]: Fix size to be
288.
(main) [GENERATE_FIXED_HUFFMAN_TABLE]: Pass 288 to
elf_zlib_inflate_table. Generate elf_zlib_default_dist_table.
(elf_zlib_default_table): Update.
(elf_zlib_default_dist_table): New static array.
(elf_zlib_inflate): Use elf_zlib_default_dist_table for dist table
for block type 1.
* ztest.c (struct zlib_test): Add uncompressed_len.
(tests): Initialize uncompressed_len field. Add new test case.
(test_samples): Use uncompressed_len field.
From-SVN: r256776
* elf.c (elf_zlib_fetch): Change pval argument to uint64_t *.
Read a four byte integer.
(elf_zlib_inflate): Change val to uint64_t. Align pin to a 32-bit
boundary before ever calling elf_zlib_fetch.
* ztest.c (test_large): Simplify print statements a bit.
From-SVN: r253456
libbacktrace/
PR other/67165
* Makefile.am: Append the content of clock_gettime_link to
ztest_LDADD.
* configure.ac: Test for the case that clock_gettime is in librt.
* Makefile.in: Regenerate.
* configure: Likewise.
From-SVN: r253345
* xcoff.c: Initial support for DWARF debug sections in XCOFF.
(STYP_DWARF, SSUBTYP_DW*): Define.
(enum dwarf_section): Define.
(struct dwsect_info): Define.
(xcoff_add): Look for DWARF sections, pass them to
backtrace_dwarf_add.
From-SVN: r253297
PR sanitizer/77631
* configure.ac: Check for lstat and readlink.
* elf.c (lstat, readlink): Provide dummy versions if real versions
are not available.
* configure, config.h.in: Rebuild.
From-SVN: r253095
* configure.ac: Check for XCOFF32/XCOFF64. Check for loadquery.
* filetype.awk: Separate AIX XCOFF32 and XCOFF64.
* xcoff.c: Add support for AIX XCOFF32 and XCOFF64 formats.
* configure, config.h.in: Regenerate.
From-SVN: r250590
* elf.c (backtrace_initialize): Always set *fileline_fn.
* ttest.c: New file.
* btest.c: Move support functions into testlib.c. Change calls to
check to pass file name.
* testlib.c: New file, copied from (part of) btest.c.
* testlib.h: New file, declarations for testlib.c.
* edtest.c: Use testlib.h and testlib.c.
* configure.ac: Test for -pthread, set HAVE_PTHREAD conditional.
* Makefile.am (btest_SOURCES): Add testlib.c.
(edtest_SOURCES): Likewise.
(CHECK_PROGRAMS): Add ttest if HAVE_PTHREAD.
(ttest_SOURCES, ttest_CFLAGS, ttest_LDADD): Define.
* configure, Makefile.in: Rebuild.
From-SVN: r249111
libbacktrace/
2016-03-02 Maxim Ostapenko <m.ostapenko@partner.samsung.com>
* elf.c (backtrace_initialize): Properly initialize elf_fileline_fn to
avoid possible crash.
(elf_add): Don't set *fileline_fn to elf_nodebug value in case of
missing debug info anymore.
From-SVN: r233911
PR 68115/libfortran
* configure.ac: Set libbacktrace_cv_sys_sync to no on hppa*-*-hpux*.
* configure: Regenerate.
* elf.c (backtrace_initialize): Cast __sync_bool_compare_and_swap call
to void.
From-SVN: r231485
PR other/67457
* backtrace.c: #include "internal.h".
(struct backtrace_data): Add can_alloc field.
(unwind): If can_alloc is false, don't try to get file/line
information.
(backtrace_full): Set can_alloc field in bdata.
* alloc.c (backtrace_alloc): Don't call error_callback if it is
NULL.
* mmap.c (backtrace_alloc): Likewise.
* internal.h: Update comments for backtrace_alloc and
backtrace_free.
From-SVN: r227533
