diff options
Diffstat (limited to 'sysdeps/s390/s390-32')
| -rw-r--r-- | sysdeps/s390/s390-32/__longjmp.c | 28 | ||||
| -rw-r--r-- | sysdeps/s390/s390-32/elf/setjmp.S | 16 | ||||
| -rw-r--r-- | sysdeps/s390/s390-32/setjmp.S | 16 |
3 files changed, 47 insertions, 13 deletions
diff --git a/sysdeps/s390/s390-32/__longjmp.c b/sysdeps/s390/s390-32/__longjmp.c index c1b977cd49..07814e080a 100644 --- a/sysdeps/s390/s390-32/__longjmp.c +++ b/sysdeps/s390/s390-32/__longjmp.c @@ -1,4 +1,4 @@ -/* Copyright (C) 2000, 2001 Free Software Foundation, Inc. +/* Copyright (C) 2000, 2001, 2005 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). @@ -29,14 +29,24 @@ void __longjmp (__jmp_buf env, int val) { - /* Restore registers and jump back. */ - asm volatile ("lr %%r2,%0\n\t" /* PUT val in grp 2. */ - "ld %%f6,48(%1)\n\t" - "ld %%f4,40(%1)\n\t" - "lm %%r6,%%r15,0(%1)\n\t" - "br %%r14" - : : "r" (val == 0 ? 1 : val), - "a" (env) : "2" ); +#ifdef PTR_DEMANGLE + register uintptr_t r5 __asm ("%r5") = THREAD_GET_POINTER_GUARD (); +#endif + /* Restore registers and jump back. */ + asm volatile ("lr %%r2,%0\n\t" /* PUT val in grp 2. */ + "ld %%f6,48(%1)\n\t" + "ld %%f4,40(%1)\n\t" + "lm %%r6,%%r15,0(%1)\n\t" +#ifdef PTR_DEMANGLE + "xr %%r14,%2\n\t" +#endif + "br %%r14" + : : "r" (val == 0 ? 1 : val), + "a" (env) +#ifdef PTR_DEMANGLE + , "r" (r5) +#endif + : "2" ); /* Avoid `volatile function does return' warnings. */ for (;;); diff --git a/sysdeps/s390/s390-32/elf/setjmp.S b/sysdeps/s390/s390-32/elf/setjmp.S index 0d1fa8e41d..f3ca8af6c2 100644 --- a/sysdeps/s390/s390-32/elf/setjmp.S +++ b/sysdeps/s390/s390-32/elf/setjmp.S @@ -1,5 +1,5 @@ /* setjmp for s390, ELF version. - Copyright (C) 2000, 2002 Free Software Foundation, Inc. + Copyright (C) 2000, 2002, 2005 Free Software Foundation, Inc. Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). This file is part of the GNU C Library. @@ -46,10 +46,22 @@ END (__setjmp) ENTRY(__sigsetjmp) .Linternal_sigsetjmp: +#ifdef PTR_MANGLE + stm %r6,%r13,0(%r2) /* store registers in jmp_buf */ + lr %r4,%r14 + PTR_MANGLE (%r4, %r5) + st %r4,32(%r2) + st %r15,36(%r2) +#else stm %r6,%r15,0(%r2) /* store registers in jmp_buf */ +#endif std %f4,40(%r2) std %f6,48(%r2) -#ifdef PIC +#if defined NOT_IN_libc && defined IS_IN_rtld + /* In ld.so we never save the signal mask. */ + lhi %r2,0 + br %r14 +#elif defined PIC /* We cannot use the PLT, because it requires that %r12 be set, but we can't save and restore our caller's value. Instead, we do an indirect jump through the GOT. */ diff --git a/sysdeps/s390/s390-32/setjmp.S b/sysdeps/s390/s390-32/setjmp.S index dc4862b2a6..a438595945 100644 --- a/sysdeps/s390/s390-32/setjmp.S +++ b/sysdeps/s390/s390-32/setjmp.S @@ -1,5 +1,5 @@ /* - Copyright (C) 2000, 2001 Free Software Foundation, Inc. + Copyright (C) 2000, 2001, 2005 Free Software Foundation, Inc. Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). This file is part of the GNU C Library. @@ -29,10 +29,22 @@ /* R2 = pointer to jmp_buf, R3 = savemask */ ENTRY(__sigsetjmp) +#ifdef PTR_MANGLE + stm %r6,%r13,0(%r2) /* store registers in jmp_buf */ + lr %r4,%r14 + PTR_MANGLE (%r4, %r5) + st %r4,32(%r2) + st %r15,36(%r2) +#else stm %r6,%r15,0(%r2) /* store registers in jmp_buf */ +#endif std %f4,40(%r2) std %f6,48(%r2) -#ifdef PIC +#if defined NOT_IN_libc && defined IS_IN_rtld + /* In ld.so we never save the signal mask. */ + lhi %r2,0 + br %r14 +#elif defined PIC /* We cannot use the PLT, because it requires that %r12 be set, but we can't save and restore our caller's value. Instead, we do an indirect jump through the GOT. */ |