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klibc/klibc.inc : Add DEBUG_PREFIX_MAP flag.

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Following reproducible-builds.org recommendations, using compiler flags
like -ffile-prefix-map or -fdebug-prefix-map allows replace build-time
paths by install-time ones in the debugging sections of binaries.

Variable DEBUG_PREFIX_MAP set these flags correctly in yocto build
context to guarantee reproducible builds.

Signed-off-by: Fabien Thomas <fabien.thomas@smile.fr>
Reviewed-by: Yoann Congal <yoann.congal@smile.fr>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
(cherry picked from commit 3f9032f126289b8071431d6dd309a5e3d7ebe153)
Signed-off-by: Armin Kuster <akuster808@gmail.com>
This commit is contained in:
Fabien Thomas 2023-10-13 16:23:54 +02:00 committed by Armin Kuster
parent 210800f123
commit dcc3639696
1 changed files with 1 additions and 0 deletions
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meta-initramfs/recipes-devtools/klibc/klibc.inc
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@ -32,6 +32,7 @@ SRC_URI[sha256sum] = "d673a294f742d59368222ff5c38462d81098c55063799de6fb8a7ba3d4
S = "${WORKDIR}/klibc-${PV}"
OPTFLAGS = "${TUNE_CCARGS} -Os -fcommon"
OPTFLAGS:append = " ${DEBUG_PREFIX_MAP}"
OPTFLAGS:append:toolchain-clang = " -fno-builtin-bcmp"
OPTFLAGS:append:toolchain-clang:mipsarch = " -no-integrated-as"