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| author | Ian Abbott <abbotti@mev.co.uk> | 2022-04-08 18:01:54 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2022-04-12 09:53:02 +0200 |
| commit | 6e200850e2cb49ec2a5898c27375bdc2309bddc7 (patch) | |
| tree | 2ec4d31a1dcd49ef692c4a3e8bbb061ef414ed44 /arch/arm/Makefile | |
| parent | 7417d0a48a45b71ebffa4d6dd075905f3516a87a (diff) | |
| download | barebox-6e200850e2cb49ec2a5898c27375bdc2309bddc7.tar.gz barebox-6e200850e2cb49ec2a5898c27375bdc2309bddc7.tar.xz | |
ARM: fix GCC 11.x build failures for ARMv7
Building barebox for ARMv7 with GCC 11.x results in errors similar to
the following:
CC common/state/state_variables.o
{standard input}: Assembler messages:
{standard input}:1535: Error: selected processor does not support `rev r3,r3' in Thumb mode
{standard input}:1576: Error: selected processor does not support `rev r3,r3' in Thumb mode
Or:
CC common/state/state_variables.o
{standard input}: Assembler messages:
{standard input}:1405: Error: selected processor does not support `rev r3,r3' in ARM mode
{standard input}:1453: Error: selected processor does not support `rev r3,r3' in ARM mode
The problem is that the compiler option `-march=armv7-a` is not being
chosen by "arch/arm/Makefile", but rather the fallback options
`-march=armv5t -Wa,-march=armv7-a` are being chosen.
Appending `-msoft-float` to `KBUILD_CPPFLAGS` earlier in
"arch/arm/Makefile" before the tests for supported `-march` options
seems to fix the problem.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Link: https://lore.barebox.org/20220408170154.114526-1-abbotti@mev.co.uk
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm/Makefile')
| -rw-r--r-- | arch/arm/Makefile | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/arm/Makefile b/arch/arm/Makefile index 610ded8a12..124a3fc40c 100644 --- a/arch/arm/Makefile +++ b/arch/arm/Makefile @@ -8,6 +8,7 @@ ifeq ($(CONFIG_CPU_V8),y) KBUILD_CPPFLAGS +=$(call cc-option,-maarch64,) else KBUILD_CPPFLAGS +=$(call cc-option,-marm,) +KBUILD_CPPFLAGS += -msoft-float endif ifeq ($(CONFIG_CPU_BIG_ENDIAN),y) @@ -78,7 +79,7 @@ KBUILD_CPPFLAGS += $(CFLAGS_ABI) $(arch-y) $(tune-y) KBUILD_AFLAGS += -include asm/unified.h export S64 = _64 else -KBUILD_CPPFLAGS += $(CFLAGS_ABI) $(arch-y) $(tune-y) -msoft-float $(CFLAGS_THUMB2) +KBUILD_CPPFLAGS += $(CFLAGS_ABI) $(arch-y) $(tune-y) $(CFLAGS_THUMB2) KBUILD_AFLAGS += -include asm/unified.h -msoft-float $(AFLAGS_THUMB2) endif |