binutils-gdb/libbacktrace
Sam James b450e10273 Sync libbacktrace from gcc [PR31327]
Note that this includes Nick's fix from edf64cd235 which
landed upstream a bit differently as r13-1566-g9ed57796235abc in GCC.

This pulls in libbacktrace as of r14-9404-gc775a030af9cad in GCC trunk.

Note that I have dropped a top-level Darwin change from r14-4825-g6a6d3817afa02b
which would've required an autoreconf, as it should be handled separately.

Approved-By: Tom Tromey <tom@tromey.com>
2024-03-11 23:10:33 +00:00
..
aclocal.m4
alloc.c
allocfail.c
allocfail.sh
atomic.c
backtrace-supported.h.in
backtrace.c
backtrace.h
btest.c
ChangeLog
ChangeLog.jit
config.h.in
configure
configure.ac
dwarf.c
edtest2.c
edtest.c
elf.c
fileline.c
filetype.awk
install-debuginfo-for-buildid.sh.in
instrumented_alloc.c
internal.h
macho.c
Makefile.am
Makefile.in
mmap.c
mmapio.c
mtest.c
nounwind.c
pecoff.c
posix.c
print.c
read.c
README
simple.c
sort.c
state.c
stest.c
test_format.c
testlib.c
testlib.h
ttest.c
unittest.c
unknown.c
xcoff.c
xztest.c
zstdtest.c
ztest.c

The libbacktrace library
Initially written by Ian Lance Taylor <iant@golang.org>

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.
In general the functions provided by this library are async-signal-safe,
meaning that they may be safely called from a signal handler.

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 October 2020, libbacktrace supports ELF, PE/COFF, Mach-O, and
XCOFF executables with DWARF debugging information.
In other words, it supports GNU/Linux, *BSD, macOS, Windows, and AIX.
The library is written to make it straightforward to add support for
other object file and debugging formats.

The library relies on the C++ unwind API defined at
https://itanium-cxx-abi.github.io/cxx-abi/abi-eh.html
This API is provided by GCC and clang.