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| author | Ulrich Drepper <drepper@redhat.com> | 2009-07-30 17:31:48 -0700 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2009-07-30 17:31:48 -0700 |
| commit | 5ead9ce5c788e7dbb0bd01888c4bcb37a8bc2ff1 (patch) | |
| tree | faf3f4efb3881c34c4eeb54a60f4b1f0e1570ef5 /sysdeps/x86_64/__longjmp.S | |
| parent | 2dec6007d183aa51abedbbb048382973129f3935 (diff) | |
| download | glibc-5ead9ce5c788e7dbb0bd01888c4bcb37a8bc2ff1.tar.gz glibc-5ead9ce5c788e7dbb0bd01888c4bcb37a8bc2ff1.tar.xz glibc-5ead9ce5c788e7dbb0bd01888c4bcb37a8bc2ff1.zip | |
Fix x86-64 ____longjmp_chk to handle signal stacks.
The simple test previously used might trigger if the longjmp jumps from the signal stack to the normal stack. We now explicitly test for this case.
Diffstat (limited to 'sysdeps/x86_64/__longjmp.S')
| -rw-r--r-- | sysdeps/x86_64/__longjmp.S | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/sysdeps/x86_64/__longjmp.S b/sysdeps/x86_64/__longjmp.S index 24552ece37..b045c04184 100644 --- a/sysdeps/x86_64/__longjmp.S +++ b/sysdeps/x86_64/__longjmp.S @@ -34,16 +34,12 @@ ENTRY(__longjmp) PTR_DEMANGLE (%r9) PTR_DEMANGLE (%rdx) #endif -#ifdef CHECK_RSP - CHECK_RSP (%r8) -#endif /* We add unwind information for the target here. */ cfi_def_cfa(%rdi, 0) cfi_register(%rsp,%r8) cfi_register(%rbp,%r9) cfi_register(%rip,%rdx) cfi_offset(%rbx,JB_RBX*8) - cfi_offset(%rbp,JB_RBP*8) cfi_offset(%r12,JB_R12*8) cfi_offset(%r13,JB_R13*8) cfi_offset(%r14,JB_R14*8) @@ -58,4 +54,4 @@ ENTRY(__longjmp) movq %r8,%rsp movq %r9,%rbp jmpq *%rdx -END (BP_SYM (__longjmp)) +END (__longjmp) |