Date: Thu, 12 Dec 2019 04:44:09 +0000 (UTC) From: Conrad Meyer <cem@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r355645 - head/contrib/libunwind/src Message-ID: <201912120444.xBC4i9QF074616@repo.freebsd.org>
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Author: cem Date: Thu Dec 12 04:44:09 2019 New Revision: 355645 URL: https://svnweb.freebsd.org/changeset/base/355645 Log: arm: libgcc_s: Fix ABI breakage introduced in r354347 Provide the symbol version for llvm-libunwind's _Unwind_Backtrace that libgcc has historically provided on arm, in addition to the (default) standard version used on all other arch. Reported by: mmel Modified: head/contrib/libunwind/src/UnwindLevel1-gcc-ext.c Modified: head/contrib/libunwind/src/UnwindLevel1-gcc-ext.c ============================================================================== --- head/contrib/libunwind/src/UnwindLevel1-gcc-ext.c Thu Dec 12 02:43:24 2019 (r355644) +++ head/contrib/libunwind/src/UnwindLevel1-gcc-ext.c Thu Dec 12 04:44:09 2019 (r355645) @@ -181,6 +181,10 @@ _Unwind_Backtrace(_Unwind_Trace_Fn callback, void *ref } } } +#ifdef __arm__ +/* Preserve legacy libgcc ARM ABI mistake. */ +__sym_compat(_Unwind_Backtrace, _Unwind_Backtrace, GCC_4.3.0); +#endif /// Find DWARF unwind info for an address 'pc' in some function.
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