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| author | Boris Krasnovskiy <borkra@gmail.com> | 2019-03-09 20:45:43 -0500 |
|---|---|---|
| committer | Christian Lamparter <chunkeey@gmail.com> | 2019-03-25 21:15:58 +0100 |
| commit | 8dcc1087602e2dd606e4f6e81a06aee62cfd4f4c (patch) | |
| tree | 9e526f2c1b08b06b90f6aa6ec765e463e5fa8772 /toolchain | |
| parent | 84f13e19b46a0378c49f0694e111803e4d94788f (diff) | |
| download | upstream-8dcc1087602e2dd606e4f6e81a06aee62cfd4f4c.tar.gz upstream-8dcc1087602e2dd606e4f6e81a06aee62cfd4f4c.tar.bz2 upstream-8dcc1087602e2dd606e4f6e81a06aee62cfd4f4c.zip | |
toolchain: ARM: Fix toolchain compilation for gcc 8.x
Set the toolchain's ARM CPU and FPU architectures by utilizing' gcc's
--with-cpu / --with-fpu configure options that: "Specify which cpu
variant the compiler should generate code for by default. cpu will
be used as the default value of the -mcpu= switch."
This will resolve the following kernel compilation failures under
gcc 8.x on ARM because the kernel wants to set (possibly conflicting)
optimization flags.
.../ccyVnmrs.s:204: Error: selected processor does not support `dmb ish' in ARM mode
.../ccyVnmrs.s:215: Error: architectural extension `mp' is not allowed for the current base architecture
.../ccyVnmrs.s:216: Error: selected processor does not support `pldw [r4]' in ARM mode
Because this is a big change, the .config and toolchain need to be
refreshed (as in removed and regenerated).
Reported-by: Ansuel Smith <ansuelsmth@gmail.com>
Reported-by: Daniel Engberg <daniel.engberg.lists@pyret.net> [#1203]
Signed-off-by: Boris Krasnovskiy <borkra@gmail.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com> [extended commit message,
removed now-deprecated CPU_CFLAGS, changed author to gmail address]
Diffstat (limited to 'toolchain')
| -rw-r--r-- | toolchain/gcc/common.mk | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/toolchain/gcc/common.mk b/toolchain/gcc/common.mk index 4bc8b20271..6e8767f707 100644 --- a/toolchain/gcc/common.mk +++ b/toolchain/gcc/common.mk @@ -161,9 +161,13 @@ ifneq ($(GCC_ARCH),) GCC_CONFIGURE+= --with-arch=$(GCC_ARCH) endif -ifneq ($(CONFIG_SOFT_FLOAT),y) - ifeq ($(CONFIG_arm),y) +ifeq ($(CONFIG_arm),y) + GCC_CONFIGURE+= \ + --with-cpu=$(word 1, $(subst +," ,$(CONFIG_CPU_TYPE))) + + ifneq ($(CONFIG_SOFT_FLOAT),y) GCC_CONFIGURE+= \ + --with-fpu=$(word 2, $(subst +, ",$(CONFIG_CPU_TYPE))) \ --with-float=hard endif endif |