gcc/libbacktrace
Tom de Vries d9aa0961ea [libbacktrace] Simplify memory management in build_address_map
In the main loop in build_address_map, we first read the abbrevs into a local
variable abbrevs, and then allocate the corresponding unit, after which we assign
the abbrevs to the unit.  This results in dedicated free-upon-failure
handling for the variable, and extra code to make sure that free-upon-failure
doesn't trigger once the unit has taken ownership of the abbrevs.

Simplify this by reversing the order of abbrev reading and unit allocation,
and eliminating the abbrevs local variable.

Bootstrapped and reg-tested on x86_64.

2018-12-28  Tom de Vries  <tdevries@suse.de>

	* dwarf.c (build_address_map): Simplify by removing local variable
	abbrevs.

From-SVN: r267444
2018-12-28 03:43:41 +00:00
..
aclocal.m4 Update GCC to autoconf 2.69, automake 1.15.1 (PR bootstrap/82856). 2018-10-31 17:03:16 +00:00
alloc.c [libbacktrace] Avoid realloc with size == 0 in backtrace_vector_release 2018-11-27 08:25:52 +00:00
allocfail.c [libbacktrace] Add allocfail.sh test-case 2018-12-12 13:50:51 +00:00
allocfail.sh [testsuite] Remove bashism from libbacktrace/allocfail.sh 2018-12-14 09:43:41 +00:00
atomic.c Update copyright years. 2018-01-03 11:03:58 +01:00
backtrace-supported.h.in Update copyright years. 2018-01-03 11:03:58 +01:00
backtrace.c backtrace.c: Revert last two changes. 2018-04-17 17:58:05 +00:00
backtrace.h re PR libbacktrace/87529 (libbacktrace API forces users to have memory leaks) 2018-10-05 14:09:07 +00:00
btest.c elf.c (elf_add): Close descriptor if we use a debugfile. 2018-01-31 23:23:21 +00:00
ChangeLog [libbacktrace] Simplify memory management in build_address_map 2018-12-28 03:43:41 +00:00
ChangeLog.jit Merger of dmalcolm/jit branch from git 2014-11-11 21:55:52 +00:00
config.h.in Update GCC to autoconf 2.69, automake 1.15.1 (PR bootstrap/82856). 2018-10-31 17:03:16 +00:00
configure Update GCC to autoconf 2.69, automake 1.15.1 (PR bootstrap/82856). 2018-10-31 17:03:16 +00:00
configure.ac Update GCC to autoconf 2.69, automake 1.15.1 (PR bootstrap/82856). 2018-10-31 17:03:16 +00:00
dwarf.c [libbacktrace] Simplify memory management in build_address_map 2018-12-28 03:43:41 +00:00
edtest2.c Update copyright years. 2018-01-03 11:03:58 +01:00
edtest.c Update copyright years. 2018-01-03 11:03:58 +01:00
elf.c re PR other/86198 (Libbacktrace does not properly work with ".note.gnu.build-id" section) 2018-06-21 08:42:53 +03:00
fileline.c Update copyright years. 2018-01-03 11:03:58 +01:00
filetype.awk configure.ac: Check for XCOFF32/XCOFF64. 2017-07-26 21:43:28 +00:00
instrumented_alloc.c [libbacktrace] Add allocfail.sh test-case 2018-12-12 13:50:51 +00:00
internal.h [libbacktrace] Factor out backtrace_vector_free 2018-11-30 08:43:50 +00:00
Makefile.am [libbacktrace] Add allocfail.sh test-case 2018-12-12 13:50:51 +00:00
Makefile.in [libbacktrace] Add allocfail.sh test-case 2018-12-12 13:50:51 +00:00
mmap.c [libbacktrace] Don't point to released memory in backtrace_vector_release 2018-11-27 08:26:04 +00:00
mmapio.c Update copyright years. 2018-01-03 11:03:58 +01:00
nounwind.c Update copyright years. 2018-01-03 11:03:58 +01:00
pecoff.c * pecoff.c (coff_add): Only release syms_view if it is valid. 2018-01-25 15:38:41 +00:00
posix.c Update copyright years. 2018-01-03 11:03:58 +01:00
print.c Update copyright years. 2018-01-03 11:03:58 +01:00
read.c Update copyright years. 2018-01-03 11:03:58 +01:00
README
simple.c Update copyright years. 2018-01-03 11:03:58 +01:00
sort.c Update copyright years. 2018-01-03 11:03:58 +01:00
state.c Update copyright years. 2018-01-03 11:03:58 +01:00
stest.c Update copyright years. 2018-01-03 11:03:58 +01:00
test_format.c [libbacktrace] Add tests for unused formats 2018-11-30 15:33:23 +00:00
testlib.c Update copyright years. 2018-01-03 11:03:58 +01:00
testlib.h Update copyright years. 2018-01-03 11:03:58 +01:00
ttest.c Update copyright years. 2018-01-03 11:03:58 +01:00
unittest.c [libbacktrace] Don't point to released memory in backtrace_vector_release 2018-11-27 08:26:04 +00:00
unknown.c Update copyright years. 2018-01-03 11:03:58 +01:00
xcoff.c xcoff.c (struct xcoff_line, [...]): Remove. 2018-08-01 21:55:05 +00:00
ztest.c elf.c (codes): Fix size to be 288. 2018-01-17 01:39:05 +00:00

The libbacktrace library
Initially written by Ian Lance Taylor <iant@google.com>

The libbacktrace library may be linked into a program or library and
used to produce symbolic backtraces.  Sample uses would be to print a
detailed backtrace when an error occurs or to gather detailed
profiling information.

The libbacktrace library is provided under a BSD license.  See the
source files for the exact license text.

The public functions are declared and documented in the header file
backtrace.h, which should be #include'd by a user of the library.

Building libbacktrace will generate a file backtrace-supported.h,
which a user of the library may use to determine whether backtraces
will work.  See the source file backtrace-supported.h.in for the
macros that it defines.

As of September 2012, libbacktrace only supports ELF executables with
DWARF debugging information.  The library is written to make it
straightforward to add support for other object file and debugging
formats.