linux/tools/objtool
Josh Poimboeuf 037d73a645 objtool: Clobber user CFLAGS variable
commit f73b3cc39c upstream.

If the build user has the CFLAGS variable set in their environment,
objtool blindly appends to it, which can cause unexpected behavior.

Clobber CFLAGS to ensure consistent objtool compilation behavior.

Reported-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Tested-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/83a276df209962e6058fcb6c615eef9d401c21bc.1567121311.git.jpoimboe@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
CC: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-10-01 08:26:07 +02:00
..
arch/x86 x86/unwind/orc: Detect the end of the stack 2018-06-21 16:34:56 +02:00
Documentation
.gitignore
arch.h
Build
builtin-check.c objtool: Add module specific retpoline rules 2018-02-21 09:05:05 +01:00
builtin-orc.c objtool: Use existing global variables for options 2018-02-21 09:05:04 +01:00
builtin.h objtool: Add module specific retpoline rules 2018-02-21 09:05:05 +01:00
cfi.h
check.c objtool: Support per-function rodata sections 2019-06-25 11:35:52 +08:00
check.h objtool: Support per-function rodata sections 2019-06-25 11:35:52 +08:00
elf.c objtool: Support GCC 9 cold subfunction naming scheme 2019-08-06 19:06:57 +02:00
elf.h objtool: Support per-function rodata sections 2019-06-25 11:35:52 +08:00
Makefile objtool: Clobber user CFLAGS variable 2019-10-01 08:26:07 +02:00
objtool.c
orc_dump.c x86/unwind/orc: Detect the end of the stack 2018-06-21 16:34:56 +02:00
orc_gen.c x86/unwind/orc: Detect the end of the stack 2018-06-21 16:34:56 +02:00
orc.h
special.c
special.h
sync-check.sh objtool: Move kernel headers/code sync check to a script 2017-11-07 10:48:34 +01:00
warn.h