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bitbake.conf: add DEBUG_PREFIX_MAP to TARGET_LDFLAGS

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-f*-prefix-map flags are required when linking with LTO enabled to make
the output binary reproducible.

See discussion here:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101473

[YOCTO #14481]

(From OE-Core rev: fddaecc88979967d0e00e2fafdbaaabec030da9f)

Signed-off-by: Tony Battersby <tonyb@cybernetics.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Tony Battersby
2021-07-27 09:36:53 -04:00
committed by Richard Purdie
parent 36ed0c29cb
commit 488aa36a61
1 changed files with 1 additions and 1 deletions
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meta/conf/bitbake.conf
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@@ -597,7 +597,7 @@ TARGET_LINK_HASH_STYLE ?= "${@['-Wl,--hash-style=gnu',''][d.getVar('LINKER_HASH_
ASNEEDED ?= "-Wl,--as-needed"
export LDFLAGS = "${TARGET_LDFLAGS}"
TARGET_LDFLAGS = "-Wl,-O1 ${TARGET_LINK_HASH_STYLE} ${ASNEEDED}"
TARGET_LDFLAGS = "-Wl,-O1 ${TARGET_LINK_HASH_STYLE} ${ASNEEDED} ${DEBUG_PREFIX_MAP}"
# mips does not support GNU hash style therefore we override
LINKER_HASH_STYLE:mipsarch:libc-musl = "sysv"