RepoMirrors
/
ffmpeg
mirror of https://git.ffmpeg.org/ffmpeg.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

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.
This commit is contained in:
Janne Grunau 2016-11-18 21:06:40 +01:00
parent 5bcc6f76f1
commit 6a1ea4ec93
1 changed files with 9 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
libavutil/arm/asm.S
View File

@ -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