Josh Poimboeuf cb40b5b920 objtool: Clobber user CFLAGS variable ...

commit f73b3cc39c84220e6dccd463b5c8279b03514646 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>

2019-10-05 12:30:08 +02:00

..

arch/x86

objtool: header file sync-up

2018-06-05 10:28:58 +02:00

Documentation

objtool: sync up with the 4.14.47 version of objtool

2018-06-05 10:28:57 +02:00

.gitignore

objtool: update .gitignore file

2018-06-26 08:08:05 +08:00

arch.h

objtool: sync up with the 4.14.47 version of objtool

2018-06-05 10:28:57 +02:00

Build

objtool: sync up with the 4.14.47 version of objtool

2018-06-05 10:28:57 +02:00

builtin-check.c

objtool: sync up with the 4.14.47 version of objtool

2018-06-05 10:28:57 +02:00

builtin-orc.c

objtool: sync up with the 4.14.47 version of objtool

2018-06-05 10:28:57 +02:00

builtin.h

objtool: sync up with the 4.14.47 version of objtool

2018-06-05 10:28:57 +02:00

cfi.h

objtool: sync up with the 4.14.47 version of objtool

2018-06-05 10:28:57 +02:00

check.c

objtool: Add rewind_stack_do_exit() to the noreturn list

2019-08-11 12:22:15 +02:00

check.h

objtool: sync up with the 4.14.47 version of objtool

2018-06-05 10:28:57 +02:00

elf.c

objtool: Support GCC 9 cold subfunction naming scheme

2019-08-06 18:29:42 +02:00

elf.h

objtool: Support GCC 8's cold subfunctions

2018-06-05 10:28:57 +02:00

Makefile

objtool: Clobber user CFLAGS variable

2019-10-05 12:30:08 +02:00

objtool.c

objtool: sync up with the 4.14.47 version of objtool

2018-06-05 10:28:57 +02:00

orc_dump.c

objtool: sync up with the 4.14.47 version of objtool

2018-06-05 10:28:57 +02:00

orc_gen.c

objtool: sync up with the 4.14.47 version of objtool

2018-06-05 10:28:57 +02:00

orc.h

objtool: sync up with the 4.14.47 version of objtool

2018-06-05 10:28:57 +02:00

special.c

objtool: sync up with the 4.14.47 version of objtool

2018-06-05 10:28:57 +02:00

special.h

…

sync-check.sh

objtool: sync up with the 4.14.47 version of objtool

2018-06-05 10:28:57 +02:00

warn.h

objtool: sync up with the 4.14.47 version of objtool

2018-06-05 10:28:57 +02:00