Peter Zijlstra 2d49b721dc objtool: Only rewrite unconditional retpoline thunk calls ... It turns out that the compilers generate conditional branches to the retpoline thunks like: 5d5: 0f 85 00 00 00 00 jne 5db <cpuidle_reflect+0x22> 5d7: R_X86_64_PLT32 __x86_indirect_thunk_r11-0x4 while the rewrite can only handle JMP/CALL to the thunks. The result is the alternative wrecking the code. Make sure to skip writing the alternatives for conditional branches. Fixes: 9bc0bb5072 ("objtool/x86: Rewrite retpoline thunk calls") Reported-by: Lukasz Majczak <lma@semihalf.com> Reported-by: Nathan Chancellor <nathan@kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Tested-by: Nathan Chancellor <nathan@kernel.org>		2021-06-11 08:53:06 +02:00
..
include/arch	Objtool updates in this cycle were:	2021-04-28 12:53:24 -07:00
Build	objtool: Abstract alternative special case handling	2020-09-10 10:43:13 -05:00
decode.c	objtool: Only rewrite unconditional retpoline thunk calls	2021-06-11 08:53:06 +02:00
special.c	objtool: Fix retpoline detection in asm code	2021-01-26 11:11:59 -06:00