diff options
Diffstat (limited to 'libc/sysdeps/unix/sysv/linux/sparc/sparc64/____longjmp_chk.S')
| -rw-r--r-- | libc/sysdeps/unix/sysv/linux/sparc/sparc64/____longjmp_chk.S | 26 |
1 files changed, 24 insertions, 2 deletions
diff --git a/libc/sysdeps/unix/sysv/linux/sparc/sparc64/____longjmp_chk.S b/libc/sysdeps/unix/sysv/linux/sparc/sparc64/____longjmp_chk.S index 9a4c8fe3b..836e62efe 100644 --- a/libc/sysdeps/unix/sysv/linux/sparc/sparc64/____longjmp_chk.S +++ b/libc/sysdeps/unix/sysv/linux/sparc/sparc64/____longjmp_chk.S @@ -40,8 +40,29 @@ ENTRY (____longjmp_chk) bleu,pt %xcc, .Lok nop - save %sp, -128, %sp + save %sp, -208, %sp + cfi_remember_state + cfi_def_cfa_register(%fp) + cfi_window_save + cfi_register(%o7, %i7) + add %fp, 2023, %o1 + clr %o0 + LOADSYSCALL(sigaltstack) + ta 0x6d + bcs,pn %xcc, .Lok2 + lduw [%fp + 2031], %l2 + andcc %l2, 0x1, %g0 + be,pn %xcc, .Lfail + ldx [%fp + 2023], %l0 + ldx [%fp + 2039], %l1 + sub %l0, STACK_BIAS, %l0 + add %l0, %l1, %l0 + sub %l0, %i2, %l0 + cmp %l0, %l1 + bgeu,pt %xcc, .Lok2 + nop +.Lfail: #ifdef PIC 1: call 2f sethi %hi(_GLOBAL_OFFSET_TABLE_-(1b-.)), %l7 @@ -56,7 +77,8 @@ ENTRY (____longjmp_chk) call HIDDEN_JUMPTARGET(__fortify_fail) nop - restore +.Lok2: restore + cfi_restore_state .Lok: /* Modify the context with the value we want to return. */ |