linux-stable/tools/objtool
Josh Poimboeuf e6da956795 objtool: Don't use ignore flag for fake jumps
The ignore flag is set on fake jumps in order to keep
add_jump_destinations() from setting their jump_dest, since it already
got set when the fake jump was created.

But using the ignore flag is a bit of a hack.  It's normally used to
skip validation of an instruction, which doesn't really make sense for
fake jumps.

Also, after the next patch, using the ignore flag for fake jumps can
trigger a false "why am I validating an ignored function?" warning.

Instead just add an explicit check in add_jump_destinations() to skip
fake jumps.

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: http://lkml.kernel.org/r/71abc072ff48b2feccc197723a9c52859476c068.1557766718.git.jpoimboe@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-05-13 20:31:17 +02:00
..
arch/x86 objtool: Add Direction Flag validation 2019-04-03 11:02:24 +02:00
Documentation x86/asm: Fix inline asm call constraints for Clang 2017-09-23 15:06:20 +02:00
.gitignore objtool: Move synced files to their original relative locations 2017-11-07 10:48:23 +01:00
arch.h objtool: Add Direction Flag validation 2019-04-03 11:02:24 +02:00
Build objtool: Add ORC unwind table generation 2017-07-18 10:57:43 +02:00
builtin-check.c objtool: Add UACCESS validation 2019-04-03 11:02:24 +02:00
builtin-orc.c objtool: Use existing global variables for options 2018-02-21 09:05:04 +01:00
builtin.h objtool: Add UACCESS validation 2019-04-03 11:02:24 +02:00
cfi.h objtool: Handle GCC stack pointer adjustment bug 2017-08-30 10:48:41 +02:00
check.c objtool: Don't use ignore flag for fake jumps 2019-05-13 20:31:17 +02:00
check.h objtool: Add Direction Flag validation 2019-04-03 11:02:24 +02:00
elf.c objtool: Handle function aliases 2019-04-03 11:02:24 +02:00
elf.h objtool: Add UACCESS validation 2019-04-03 11:02:24 +02:00
Makefile objtool: Query pkg-config for libelf location 2019-03-28 13:32:01 +01:00
objtool.c objtool: Print top level commands on incorrect usage 2017-10-18 15:22:26 +02:00
orc.h objtool: Move synced files to their original relative locations 2017-11-07 10:48:23 +01:00
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
special.c objtool: Add UACCESS validation 2019-04-03 11:02:24 +02:00
special.h objtool: Add UACCESS validation 2019-04-03 11:02:24 +02:00
sync-check.sh objtool: Move kernel headers/code sync check to a script 2017-11-07 10:48:34 +01:00
warn.h objtool: Add --backtrace support 2019-04-03 11:02:24 +02:00