gcc/libbacktrace
Tom de Vries 0c155f24a9 [libbacktrace] Avoid realloc with size == 0 in backtrace_vector_release
As of C17, realloc with size 0 is marked as an obsolescent feature.

Fix this in backtrace_vector_release by using free instead.

Bootstrapped and reg-tested on x86_64.

2018-11-27  Tom de Vries  <tdevries@suse.de>

	* alloc.c (backtrace_vector_release): Handle vec->size == 0 using free
	instead of realloc.
	* Makefile.am (check_PROGRAMS): Add unittest.
	* Makefile.in: Regenerate.
	* unittest.c: New file.

From-SVN: r266504
2018-11-27 08:25:52 +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
atomic.c
backtrace-supported.h.in
backtrace.c
backtrace.h
btest.c
ChangeLog [libbacktrace] Avoid realloc with size == 0 in backtrace_vector_release 2018-11-27 08:25:52 +00:00
ChangeLog.jit
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] Factor out read_initial_length 2018-11-22 00:06:27 +00:00
edtest2.c
edtest.c
elf.c
fileline.c
filetype.awk
internal.h
Makefile.am [libbacktrace] Avoid realloc with size == 0 in backtrace_vector_release 2018-11-27 08:25:52 +00:00
Makefile.in [libbacktrace] Avoid realloc with size == 0 in backtrace_vector_release 2018-11-27 08:25:52 +00:00
mmap.c
mmapio.c
nounwind.c
pecoff.c
posix.c
print.c
read.c
README
simple.c
sort.c
state.c
stest.c
testlib.c
testlib.h
ttest.c
unittest.c [libbacktrace] Avoid realloc with size == 0 in backtrace_vector_release 2018-11-27 08:25:52 +00:00
unknown.c
xcoff.c
ztest.c

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.