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3abafaf219
Old versions of binutils (before 2.23) do not yet understand the
crypto-neon-fp-armv8 fpu instructions, and an attempt to build these
files results in a build failure:
arch/arm/crypto/aes-ce-core.S:133: Error: selected processor does not support ARM mode `vld1.8 {q10-q11},[ip]!'
arch/arm/crypto/aes-ce-core.S:133: Error: bad instruction `aese.8 q0,q8'
arch/arm/crypto/aes-ce-core.S:133: Error: bad instruction `aesmc.8 q0,q0'
arch/arm/crypto/aes-ce-core.S:133: Error: bad instruction `aese.8 q0,q9'
arch/arm/crypto/aes-ce-core.S:133: Error: bad instruction `aesmc.8 q0,q0'
Since the affected versions are still in widespread use, and this breaks
'allmodconfig' builds, we should try to at least get a successful kernel
build. Unfortunately, I could not come up with a way to make the Kconfig
symbol depend on the binutils version, which would be the nicest solution.
Instead, this patch uses the 'as-instr' Kbuild macro to find out whether
the support is present in the assembler, and otherwise emits a non-fatal
warning indicating which selected modules could not be built.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: http://storage.kernelci.org/next/next-20150410/arm-allmodconfig/build.log
Fixes:
|
||
|---|---|---|
| .. | ||
| .gitignore | ||
| aes_glue.c | ||
| aes_glue.h | ||
| aes-armv4.S | ||
| aes-ce-core.S | ||
| aes-ce-glue.c | ||
| aesbs-core.S_shipped | ||
| aesbs-glue.c | ||
| bsaes-armv7.pl | ||
| ghash-ce-core.S | ||
| ghash-ce-glue.c | ||
| Kconfig | ||
| Makefile | ||
| sha1_glue.c | ||
| sha1_neon_glue.c | ||
| sha1-armv4-large.S | ||
| sha1-armv7-neon.S | ||
| sha1-ce-core.S | ||
| sha1-ce-glue.c | ||
| sha1.h | ||
| sha2-ce-core.S | ||
| sha2-ce-glue.c | ||
| sha256_glue.c | ||
| sha256_glue.h | ||
| sha256_neon_glue.c | ||
| sha256-armv4.pl | ||
| sha256-core.S_shipped | ||
| sha512_neon_glue.c | ||
| sha512-armv7-neon.S | ||