Date: Tue, 23 May 2017 07:21:26 +0000 (UTC) From: Michal Meloun <mmel@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-11@freebsd.org Subject: svn commit: r318714 - in stable/11/contrib/gcc: . config/arm Message-ID: <201705230721.v4N7LQIN077749@repo.freebsd.org>
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Author: mmel Date: Tue May 23 07:21:26 2017 New Revision: 318714 URL: https://svnweb.freebsd.org/changeset/base/318714 Log: MFC r318024,r318025: r318024: Fix _Unwind_Backtrace symbol version for ARM. r318025: Revert accidentally changed std.armv6 in r318024. Modified: stable/11/contrib/gcc/config/arm/libgcc-bpabi.ver stable/11/contrib/gcc/config/arm/libunwind-arm.S stable/11/contrib/gcc/libgcc-std.ver Directory Properties: stable/11/ (props changed) Modified: stable/11/contrib/gcc/config/arm/libgcc-bpabi.ver ============================================================================== --- stable/11/contrib/gcc/config/arm/libgcc-bpabi.ver Tue May 23 07:20:29 2017 (r318713) +++ stable/11/contrib/gcc/config/arm/libgcc-bpabi.ver Tue May 23 07:21:26 2017 (r318714) @@ -81,3 +81,11 @@ GCC_3.5 { # GNU-specific entry point. __gnu_unwind_frame } + +%exclude { + _Unwind_Backtrace +} + +GCC_4.3.0 { + _Unwind_Backtrace +} Modified: stable/11/contrib/gcc/config/arm/libunwind-arm.S ============================================================================== --- stable/11/contrib/gcc/config/arm/libunwind-arm.S Tue May 23 07:20:29 2017 (r318713) +++ stable/11/contrib/gcc/config/arm/libunwind-arm.S Tue May 23 07:21:26 2017 (r318714) @@ -133,4 +133,22 @@ UNWIND_WRAPPER _Unwind_Resume_or_Rethrow UNWIND_WRAPPER _Unwind_ForcedUnwind 3 UNWIND_WRAPPER _Unwind_Backtrace 2 +/* + * Originally, we incorrectly export _Unwind_Backtrace symbol + * with GCC_3.3 version, but real GCC libgcc export it as GCC_4.3.0. + * To maintain backward compatibility, export it with both versions where + * GCC_4.3.0 is default one. + * + * The workaround is complicated by next two issues: + * - old GNU ld cannot handle two (or more) symbol versions + * targeting same function. + * - the .weakref crashes clang 4.0 + */ + .globl SYM(_Unwind_Backtrace33) + TYPE(_Unwind_Backtrace33) +SYM(_Unwind_Backtrace33): + b _Unwind_Backtrace + + .symver SYM(_Unwind_Backtrace33),_Unwind_Backtrace@GCC_3.3 + #endif /* ndef __symbian__ */ Modified: stable/11/contrib/gcc/libgcc-std.ver ============================================================================== --- stable/11/contrib/gcc/libgcc-std.ver Tue May 23 07:20:29 2017 (r318713) +++ stable/11/contrib/gcc/libgcc-std.ver Tue May 23 07:21:26 2017 (r318714) @@ -275,7 +275,7 @@ GCC_4.2.0 { _Unwind_GetIPInfo } -%inherit GCC_4.3 GCC_4.2.0 +%inherit GCC_4.3.0 GCC_4.2.0 GCC_4.3.0 { # byte swapping routines __bswapsi2
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