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Add CLANG_PLUGIN_FILE to find the clang plugin file and pass it to --plugin for ar, nm and ranlib so that binutils can be built with clang LTO. Run CLANG_PLUGIN_FILE before GCC_PLUGIN_OPTION since GCC_PLUGIN_OPTION may return the wrong PLUGIN_OPTION with clang. PR binutils/33470 * Makefile.in: Regenerated. * Makefile.tpl (NM): Add @NM_PLUGIN_OPTION@. * configure: Regenerated. * configure.ac: Include config/clang-plugin.m4. Run CLANG_PLUGIN_FILE before GCC_PLUGIN_OPTION to set PLUGIN_OPTION. Set and subst NM_PLUGIN_OPTION. * libtool.m4 (_LT_CMD_OLD_ARCHIVE): Use CLANG_PLUGIN_FILE and GCC_PLUGIN_OPTION. config/ PR binutils/33470 * clang-plugin.m4: New file. libbacktrace/ PR binutils/33470 * Makefile.in: Regenerated. * aclocal.m4: Likewise. * configure: Likewise. libiberty/ PR binutils/33470 * aclocal.m4: Regenerated. * configure: Likewise. * configure.ac: Move GCC_PLUGIN_OPTION after GCC_NO_EXECUTABLES. Run CLANG_PLUGIN_FILE before GCC_PLUGIN_OPTION to set PLUGIN_OPTION. Don't add the redundant --plugin option. zlib/ PR binutils/33470 * Makefile.in: Regenerated. * aclocal.m4: Likewise. * configure: Likewise. Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
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.