gcc-4.9/5.3: Ignore -fdebug-prefix-map in producer string
Backport from upstream master. The discussion detail:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69821
Compile without this fix:
objdump -g packages-split/lib32-glibc-dev/usr/lib/gcrt1.o
...
| <5f> DW_AT_producer : (indirect string, offset: 0x1b): GNU C99 5.3.0
-m32-march=core2 -mtune=core2 -msse3 -mfpmath=sse -mpreferred-stack-boundary=4
-g -O2 -std=gnu99 -fgnu89-inline -fdebug-prefix-map=/buildarea/raid0/hjia/buil
d-
20160127-yocto-buildpath-2/tmp/sysroots/lib32-qemux86-64=
-feliminate-unused-debug-types -fmerge-all-constants -frounding-math
-ftls-model=initial-exec
...
Compile with this fix:
objdump -g packages-split/lib32-glibc-dev/usr/lib/gcrt1.o
...
| <5f> DW_AT_producer : (indirect string, offset: 0xa1): GNU C99 5.3.0
-m32 -march=core2 -mtune=core2 -msse3 -mfpmath=sse -mpreferred-stack-boundary=4
-g -O2 -std=gnu99 -fgnu89-inline -feliminate-unused-debug-types -fmerge-all-constants
-frounding-math -ftls-model=initial-exec
...
[YOCTO #7058]
Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
