On 05/19/2017, 11:35 PM, Josh Poimboeuf wrote: > https://github.com/jpoimboe/linux/blob/undwarf/arch/x86/kernel/unwind_undwarf.c JFYI, it crashes in sha1_transform_avx due to crypto changes. You perhaps missed that this beast uses ebp (not rbp) register for computations. I had to do: --- a/arch/x86/crypto/sha1_ssse3_asm.S +++ b/arch/x86/crypto/sha1_ssse3_asm.S @@ -37,7 +37,7 @@ #define REG_A %ecx #define REG_B %esi #define REG_C %edi -#define REG_D %ebp +#define REG_D %r12d #define REG_E %edx #define REG_T1 %eax @@ -74,6 +74,7 @@ SYM_FUNC_START(\name) push %rbx + push %r12 push %rbp mov %rsp, %rbp @@ -99,6 +100,7 @@ rep stosq leaveq # deallocate workspace + pop %r12 pop %rbx ret I am afraid there are more of these, e.g. in aesni-intel_asm.S. thanks, -- js suse labs -- To unsubscribe from this list: send the line "unsubscribe live-patching" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
