ffmpeg | branch: master | Janne Grunau <janne-li...@jannau.net> | Fri Nov 18 21:06:40 2016 +0100| [6a1ea4ec932f4fc9fdc00ec51ee070b298ddb35f] | committer: Janne Grunau
arm: warn/error on movrelx usage problematic with PIC on ELF The warning has false positives but our asm does not trigger it. For new code false positives can only be avoided by changing the register allocation. > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=6a1ea4ec932f4fc9fdc00ec51ee070b298ddb35f --- libavutil/arm/asm.S | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/libavutil/arm/asm.S b/libavutil/arm/asm.S index 4ac0ea2..a791e80 100644 --- a/libavutil/arm/asm.S +++ b/libavutil/arm/asm.S @@ -184,6 +184,15 @@ T ldr \rd, [\rd] .endm .macro movrelx rd, val, gp + .ifc \rd,\gp + .error "movrelx needs two distinct registers" + .endif + .ifc \rd\()_\gp,r12_ + .warning "movrelx rd=\rd without explicit set gp" + .endif + .ifc \rd\()_\gp,ip_ + .warning "movrelx rd=\rd without explicit set gp" + .endif #if CONFIG_PIC && defined(__ELF__) .ifnb \gp .if .Lpic_gp _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
