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bitbake.conf: use target path as compile dir in debugging info

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In debugging information, it uses target paths rather than
build ones as compile dir.
...
 -fdebug-prefix-map=old=new
   When compiling files in directory old, record debugging
   information describing them as in new instead.
...

Compile without this fix:
objdump -g git/test.o
...
 The Directory Table (offset 0x1b):
|  1     /buildarea/raid0/hjia/build-20160119-yocto-buildpath/tmp/sysroots/x86_64-linux/usr/lib/
i686-pokymllib32-linux.lib32-gcc-cross-initial-i686/gcc/i686-pokymllib32-linux/5.3.0/include
|  2     /buildarea/raid0/hjia/build-20160119-yocto-buildpath/tmp/sysroots/lib32-qemux86-64/usr/include/bits
|  3     /buildarea/raid0/hjia/build-20160119-yocto-buildpath/tmp/sysroots/lib32-qemux86-64/usr/include
...

Compile with this fix:
objdump -g git/test.o
...
 The Directory Table (offset 0x1b):
|  1     /usr/lib/i686-pokymllib32-linux.lib32-gcc-cross-initial-i686/gcc/i686-pokymllib32-linux/
5.3.0/include
|  2     /usr/include/bits
|  3     /usr/include
...

[YOCTO #7058]

(From OE-Core rev: 0fe42caad8f7c142741a28b09458f4e2fdf289ff)

Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Hongxu Jia
2016-02-16 04:14:55 -05:00
committed by Richard Purdie
parent ef30119185
commit 7a11650ebc
1 changed files with 7 additions and 1 deletions
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8
meta/conf/bitbake.conf
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@@ -544,7 +544,13 @@ EXTRA_OEMAKE_prepend_task-install = "${PARALLEL_MAKEINST} "
##################################################################
# Optimization flags.
##################################################################
DEBUG_FLAGS ?= "-g -feliminate-unused-debug-types"
DEBUG_FLAGS ?= "-g -feliminate-unused-debug-types \
-fdebug-prefix-map=${B}=/usr/src/${BPN} \
-fdebug-prefix-map=${S}=/usr/src/${BPN} \
-fdebug-prefix-map=${STAGING_DIR_NATIVE}= \
-fdebug-prefix-map=${STAGING_DIR_HOST}= \
"
# Disabled until the option works properly -feliminate-dwarf2-dups
FULL_OPTIMIZATION = "-O2 -pipe ${DEBUG_FLAGS}"
DEBUG_OPTIMIZATION = "-O -fno-omit-frame-pointer ${DEBUG_FLAGS} -pipe"