2f62847cf6
Commit 1d2e9b67b001 ("ARM: 9265/1: pass -march= only to compiler") added
a __thumb2__ define to ASFLAGS to avoid build errors in the crypto code,
which relies on __thumb2__ for preprocessing. Commit 59e2cf8d21e0 ("ARM:
9275/1: Drop '-mthumb' from AFLAGS_ISA") followed up on this by removing
-mthumb from AFLAGS so that __thumb2__ would not be defined when the
default target was ARMv7 or newer.
Unfortunately, the second commit's fix assumes that the toolchain
defaults to -mno-thumb / -marm, which is not the case for Debian's
arm-linux-gnueabihf target, which defaults to -mthumb:
$ echo | arm-linux-gnueabihf-gcc -dM -E - | grep __thumb
#define __thumb2__ 1
#define __thumb__ 1
This target is used by several CI systems, which will still see
redefined macro warnings, despite '-mthumb' not being present in the
flags:
<command-line>: warning: "__thumb2__" redefined
<built-in>: note: this is the location of the previous definition
Remove the global AFLAGS __thumb2__ define and move it to the crypto
folder where it is required by the imported OpenSSL algorithms; the rest
of the kernel should use the internal CONFIG_THUMB2_KERNEL symbol to
know whether or not Thumb2 is being used or not. Be sure that __thumb2__
is undefined first so that there are no macro redefinition warnings.
Link: https://github.com/ClangBuiltLinux/linux/issues/1772
Reported-by: "kernelci.org bot" <bot@kernelci.org>
Suggested-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Tested-by: Nick Desaulniers <ndesaulniers@google.com>
Fixes: 59e2cf8d21e0 ("ARM: 9275/1: Drop '-mthumb' from AFLAGS_ISA")
Fixes: 1d2e9b67b001 ("ARM: 9265/1: pass -march= only to compiler")
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
|
||
|---|---|---|
| .. | ||
| .gitignore | ||
| aes-ce-core.S | ||
| aes-ce-glue.c | ||
| aes-cipher-core.S | ||
| aes-cipher-glue.c | ||
| aes-neonbs-core.S | ||
| aes-neonbs-glue.c | ||
| blake2b-neon-core.S | ||
| blake2b-neon-glue.c | ||
| blake2s-core.S | ||
| blake2s-glue.c | ||
| chacha-glue.c | ||
| chacha-neon-core.S | ||
| chacha-scalar-core.S | ||
| crc32-ce-core.S | ||
| crc32-ce-glue.c | ||
| crct10dif-ce-core.S | ||
| crct10dif-ce-glue.c | ||
| curve25519-core.S | ||
| curve25519-glue.c | ||
| ghash-ce-core.S | ||
| ghash-ce-glue.c | ||
| Kconfig | ||
| Makefile | ||
| nh-neon-core.S | ||
| nhpoly1305-neon-glue.c | ||
| poly1305-armv4.pl | ||
| poly1305-glue.c | ||
| 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 | ||
| sha512-armv4.pl | ||
| sha512-glue.c | ||
| sha512-neon-glue.c | ||
| sha512.h | ||