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Fix MFS symbol redefinition with clang 3.8.0

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Newest CLANG objcpy uses different name parsing.
Modify regexp to match (i.e. avoid substitution
of "/" or "-" with "_").

Obtained from:         Semihalf
Sponsored by:          Juniper Networks
Reviewed by:           hselasky, zbb
Differential Revision: https://reviews.freebsd.org/D5873
This commit is contained in:
wma 2016-04-20 17:54:53 +00:00
parent 03d3355a71
commit 9aa0848a7e
1 changed files with 9 additions and 0 deletions
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9
sys/conf/kern.post.mk
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@ -364,6 +364,9 @@ embedfs_${MFS_IMAGE:T:R}.o: ${MFS_IMAGE}
--output-target ${EMBEDFS_FORMAT.${MACHINE_ARCH}} \
--binary-architecture ${EMBEDFS_ARCH.${MACHINE_ARCH}} \
${MFS_IMAGE} ${.TARGET}
# Provide set of two distinct regexp to match for GCC (first three)
# and for CLANG >= 3.8.0 (last three). First three should be removed
# once support for GCC and CLANG < 3.8.0 is abandoned.
${OBJCOPY} \
--rename-section .data=mfs,contents,alloc,load,readonly,data \
--redefine-sym \
@ -372,6 +375,12 @@ embedfs_${MFS_IMAGE:T:R}.o: ${MFS_IMAGE}
_binary_${MFS_IMAGE:C,[^[:alnum:]],_,g}_start=mfs_root \
--redefine-sym \
_binary_${MFS_IMAGE:C,[^[:alnum:]],_,g}_end=mfs_root_end \
--redefine-sym \
_binary_${MFS_IMAGE:C,[^-/[:alnum:]],_,g}_size=__mfs_root_size \
--redefine-sym \
_binary_${MFS_IMAGE:C,[^-/[:alnum:]],_,g}_start=mfs_root \
--redefine-sym \
_binary_${MFS_IMAGE:C,[^-/[:alnum:]],_,g}_end=mfs_root_end \
${.TARGET}
.endif
.endif