The patch titled
Subject: jump label: pass kbuild_cflags when checking for asm goto support
has been added to the -mm tree. Its filename is
jump-label-pass-kbuild_cflags-when-checking-for-asm-goto-support.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/jump-label-pass-kbuild_cflags-when-checking-for-asm-goto-support.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/jump-label-pass-kbuild_cflags-when-checking-for-asm-goto-support.patch
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------------------------------------------------------
From: David Lin <dtwlin@xxxxxxxxxx>
Subject: jump label: pass kbuild_cflags when checking for asm goto support
Some versions of ARM GCC compiler such as Android toolchain throws in a
'-fpic' flag by default. This causes the gcc-goto check script to fail
although some config would have '-fno-pic' flag in the KBUILD_CFLAGS.
This patch passes the KBUILD_CFLAGS to the check script so that the script
does not rely on the default config from different compilers.
Link: http://lkml.kernel.org/r/20170120234329.78868-1-dtwlin@xxxxxxxxxx
Signed-off-by: David Lin <dtwlin@xxxxxxxxxx>
Acked-by: Steven Rostedt <rostedt@xxxxxxxxxxx>
Cc: Michal Marek <mmarek@xxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN Makefile~jump-label-pass-kbuild_cflags-when-checking-for-asm-goto-support Makefile
--- a/Makefile~jump-label-pass-kbuild_cflags-when-checking-for-asm-goto-support
+++ a/Makefile
@@ -797,7 +797,7 @@ KBUILD_CFLAGS += $(call cc-option,-Wer
KBUILD_ARFLAGS := $(call ar-option,D)
# check for 'asm goto'
-ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC)), y)
+ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC) $(KBUILD_CFLAGS)), y)
KBUILD_CFLAGS += -DCC_HAVE_ASM_GOTO
KBUILD_AFLAGS += -DCC_HAVE_ASM_GOTO
endif
_
Patches currently in -mm which might be from dtwlin@xxxxxxxxxx are
jump-label-pass-kbuild_cflags-when-checking-for-asm-goto-support.patch
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