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authorNicholas Piggin <npiggin@gmail.com>2018-05-09 23:00:00 +1000
committerMasahiro Yamada <yamada.masahiro@socionext.com>2018-05-17 22:45:01 +0900
commit5d20ee3192a58750ef8cc24b21aad23a82689be0 (patch)
tree7a91f8a8ee8ab7126f6d36bad1b0b121746a60c3 /arch/Kconfig
parent6ca8d9433d7712d4c3c6102816b685470504dc3d (diff)
downloadlinux-5d20ee3192a58750ef8cc24b21aad23a82689be0.tar.gz
kbuild: Allow LD_DEAD_CODE_DATA_ELIMINATION to be selectable if enabled
Architectures that are capable can select HAVE_LD_DEAD_CODE_DATA_ELIMINATION to enable selection of that option (as an EXPERT kernel option). Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Diffstat (limited to 'arch/Kconfig')
-rw-r--r--arch/Kconfig15
1 files changed, 0 insertions, 15 deletions
diff --git a/arch/Kconfig b/arch/Kconfig
index 706dec4d295a..c88fa0eb49df 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -596,21 +596,6 @@ config CC_STACKPROTECTOR_AUTO
endchoice
-config LD_DEAD_CODE_DATA_ELIMINATION
- bool
- help
- Select this if the architecture wants to do dead code and
- data elimination with the linker by compiling with
- -ffunction-sections -fdata-sections and linking with
- --gc-sections.
-
- This requires that the arch annotates or otherwise protects
- its external entry points from being discarded. Linker scripts
- must also merge .text.*, .data.*, and .bss.* correctly into
- output sections. Care must be taken not to pull in unrelated
- sections (e.g., '.text.init'). Typically '.' in section names
- is used to distinguish them from label names / C identifiers.
-
config HAVE_ARCH_WITHIN_STACK_FRAMES
bool
help