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| author | Arnd Bergmann <[email protected]> | 2012-08-10 11:12:20 +0000 |
|---|---|---|
| committer | Arnd Bergmann <[email protected]> | 2012-10-09 20:29:05 +0200 |
| commit | 91802a8ef410810db58907d2ea4c4adc00ef4688 (patch) | |
| tree | 778be8d346a007457f430b113f10467e66591a64 /tools/perf/util/trace-event-scripting.c | |
| parent | f880b67dcbdedb49453f88d2ccb1a0937b046d82 (diff) | |
ARM: pass -marm to gcc by default for both C and assembler
The Linaro cross toolchain and probably others nowadays default to
building in THUMB2 mode. When building a kernel for a CPU that does
not support THUMB2, the compiler complains about incorrect flags.
We can work around this by setting -marm for all non-T2 builds.
-marm was passed unconditionally for C files previously, but nothing was
passed to the gcc frontend when processing .S files, resulting in a
warning. The assembler never defaults to ARM unless -Wa,-mthumb is
supplied explicitly, so the files were still assembled correctly.
This patch makes sure that -marm is passed for .S files too, and also
avoids the redundant gcc -marm -mthumb in Thumb kernels.
Without this patch, building assabet_defconfig results in:
usr/initramfs_data.S:1:0: warning: target CPU does not support THUMB instructions [enabled by default]
arch/arm/nwfpe/entry.S:1:0: warning: target CPU does not support THUMB instructions [enabled by default]
firmware/cis/PCMLM28.cis.gen.S:1:0: warning: target CPU does not support THUMB instructions [enabled by default]
(and many more)
Signed-off-by: Arnd Bergmann <[email protected]>
Acked-by: Nicolas Pitre <[email protected]>
Acked-by: Dave Martin <[email protected]>
Cc: Russell King <[email protected]>
Diffstat (limited to 'tools/perf/util/trace-event-scripting.c')
0 files changed, 0 insertions, 0 deletions