| From 8c1ebb564f5eca2baeedc27a703200786d1abb0b Mon Sep 17 00:00:00 2001 |
| From: Khem Raj <raj.khem@gmail.com> |
| Date: Sat, 22 Dec 2018 15:28:40 -0800 |
| Subject: [PATCH] tests/amd64: Do not clobber %rsp register |
| |
| This is seen with gcc-9.0 compiler now which is fix that gcc community |
| did recently |
| https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52813 |
| |
| Upstream-Status: Submitted [https://bugs.kde.org/show_bug.cgi?id=402480] |
| |
| Signed-off-by: Khem Raj <raj.khem@gmail.com> |
| --- |
| none/tests/amd64-linux/bug345887.c | 5 +++-- |
| 1 file changed, 3 insertions(+), 2 deletions(-) |
| |
| diff --git a/none/tests/amd64-linux/bug345887.c b/none/tests/amd64-linux/bug345887.c |
| index 0f9237d..4b07fe1 100644 |
| --- a/none/tests/amd64-linux/bug345887.c |
| +++ b/none/tests/amd64-linux/bug345887.c |
| @@ -20,13 +20,14 @@ static void inner(void) |
| "movq $0x10d, %%r14\n" |
| "movq $0x10e, %%r15\n" |
| // not %rbp as mdb is then not able to reconstruct stack trace |
| - "movq $0x10f, %%rsp\n" |
| + // not %rsp since gcc ignores it and since gcc >= 9.0 errors about it |
| + // see https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52813 |
| "movq $0x1234, (%%rax)\n" // should cause SEGV here |
| "ud2" // should never get here |
| : // no output registers |
| : // no input registers |
| : "memory", "%rax", "%rbx", "%rcx", "%rdx", "%rsi", "%rdi", |
| - "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15", "%rsp"); |
| + "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15"); |
| } |
| |
| __attribute__((noinline)) |