diff options
Diffstat (limited to 'sysdeps')
-rw-r--r-- | sysdeps/s390/bits/setjmp.h | 2 | ||||
-rw-r--r-- | sysdeps/s390/s390-32/__longjmp.c | 28 | ||||
-rw-r--r-- | sysdeps/s390/s390-32/elf/setjmp.S | 7 | ||||
-rw-r--r-- | sysdeps/s390/s390-32/setjmp.S | 7 | ||||
-rw-r--r-- | sysdeps/s390/s390-64/__longjmp.c | 28 | ||||
-rw-r--r-- | sysdeps/s390/s390-64/elf/setjmp.S | 7 | ||||
-rw-r--r-- | sysdeps/s390/s390-64/setjmp.S | 7 | ||||
-rw-r--r-- | sysdeps/sparc/sparc32/__longjmp.S | 20 | ||||
-rw-r--r-- | sysdeps/sparc/sparc32/setjmp.S | 12 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h | 2 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h | 2 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/sparc/bits/setjmp.h | 5 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h | 22 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h | 20 |
14 files changed, 131 insertions, 38 deletions
diff --git a/sysdeps/s390/bits/setjmp.h b/sysdeps/s390/bits/setjmp.h index 01533ca367..37f600d0ad 100644 --- a/sysdeps/s390/bits/setjmp.h +++ b/sysdeps/s390/bits/setjmp.h @@ -40,7 +40,7 @@ #ifndef _ASM -typedef struct { +typedef struct __s390_jmp_buf { /* We save registers 6-15. */ long int __gregs[10]; diff --git a/sysdeps/s390/s390-32/__longjmp.c b/sysdeps/s390/s390-32/__longjmp.c index 07814e080a..c47ebbc52a 100644 --- a/sysdeps/s390/s390-32/__longjmp.c +++ b/sysdeps/s390/s390-32/__longjmp.c @@ -29,24 +29,32 @@ void __longjmp (__jmp_buf env, int val) { + register int r2 __asm ("%r2") = val == 0 ? 1 : val; #ifdef PTR_DEMANGLE - register uintptr_t r5 __asm ("%r5") = THREAD_GET_POINTER_GUARD (); + register uintptr_t r3 __asm ("%r3") = THREAD_GET_POINTER_GUARD (); + register void *r1 __asm ("%r1") = (void *) env; #endif /* Restore registers and jump back. */ - asm volatile ("lr %%r2,%0\n\t" /* PUT val in grp 2. */ - "ld %%f6,48(%1)\n\t" + asm volatile ("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 + "lm %%r6,%%r13,0(%1)\n\t" + "lm %%r4,%%r5,32(%1)\n\t" + "xr %%r4,%2\n\t" + "xr %%r5,%2\n\t" + "lr %%r15,%%r5\n\t" + "br %%r4" +#else + "lm %%r6,%%r15,0(%1)\n\t" "br %%r14" - : : "r" (val == 0 ? 1 : val), - "a" (env) +#endif + : : "r" (r2), #ifdef PTR_DEMANGLE - , "r" (r5) + "r" (r1), "r" (r3) +#else + "a" (env) #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 f3ca8af6c2..ed28008a56 100644 --- a/sysdeps/s390/s390-32/elf/setjmp.S +++ b/sysdeps/s390/s390-32/elf/setjmp.S @@ -49,9 +49,10 @@ 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) + lr %r5,%r15 + PTR_MANGLE (%r4, %r1) + PTR_MANGLE2 (%r5, %r1) + stm %r4,%r5,32(%r2) #else stm %r6,%r15,0(%r2) /* store registers in jmp_buf */ #endif diff --git a/sysdeps/s390/s390-32/setjmp.S b/sysdeps/s390/s390-32/setjmp.S index a438595945..b943085e93 100644 --- a/sysdeps/s390/s390-32/setjmp.S +++ b/sysdeps/s390/s390-32/setjmp.S @@ -32,9 +32,10 @@ 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) + lr %r5,%r15 + PTR_MANGLE (%r4, %r1) + PTR_MANGLE2 (%r5, %r1) + stm %r4,%r5,32(%r2) #else stm %r6,%r15,0(%r2) /* store registers in jmp_buf */ #endif diff --git a/sysdeps/s390/s390-64/__longjmp.c b/sysdeps/s390/s390-64/__longjmp.c index 6650bf702f..030fb5b515 100644 --- a/sysdeps/s390/s390-64/__longjmp.c +++ b/sysdeps/s390/s390-64/__longjmp.c @@ -29,26 +29,34 @@ void __longjmp (__jmp_buf env, int val) { + register long int r2 __asm ("%r2") = val == 0 ? 1 : val; #ifdef PTR_DEMANGLE - register uintptr_t r5 __asm ("%r5") = THREAD_GET_POINTER_GUARD (); + register uintptr_t r3 __asm ("%r3") = THREAD_GET_POINTER_GUARD (); + register void *r1 __asm ("%r1") = (void *) env; #endif /* Restore registers and jump back. */ - asm volatile ("lgr %%r2,%0\n\t" /* Put val in grp 2. */ - "ld %%f7,104(%1)\n\t" + asm volatile ("ld %%f7,104(%1)\n\t" "ld %%f5,96(%1)\n\t" "ld %%f3,88(%1)\n\t" "ld %%f1,80(%1)\n\t" - "lmg %%r6,%%r15,0(%1)\n\t" #ifdef PTR_DEMANGLE - "xgr %%r14,%2\n\t" -#endif + "lmg %%r6,%%r13,0(%1)\n\t" + "lmg %%r4,%%r5,64(%1)\n\t" + "xgr %%r4,%2\n\t" + "xgr %%r5,%2\n\t" + "lgr %%r15,%%r5\n\t" + "br %%r4" +#else + "lmg %%r6,%%r15,0(%1)\n\t" "br %%r14" - : : "r" (val == 0 ? 1 : val), - "a" (env) +#endif + : : "r" (r2), #ifdef PTR_DEMANGLE - , "r" (r5) + "r" (r1), "r" (r3) +#else + "a" (env) #endif - : "2" ); + ); /* Avoid `volatile function does return' warnings. */ for (;;); diff --git a/sysdeps/s390/s390-64/elf/setjmp.S b/sysdeps/s390/s390-64/elf/setjmp.S index 44f7cf08cc..28b6a5a35b 100644 --- a/sysdeps/s390/s390-64/elf/setjmp.S +++ b/sysdeps/s390/s390-64/elf/setjmp.S @@ -49,9 +49,10 @@ ENTRY(__sigsetjmp) #ifdef PTR_MANGLE stmg %r6,%r13,0(%r2) /* Store registers in jmp_buf. */ lgr %r4,%r14 - PTR_MANGLE (%r4, %r5) - stg %r4,64(%r2) - stg %r15,72(%r2) + lgr %r5,%r15 + PTR_MANGLE (%r4, %r1) + PTR_MANGLE2 (%r5, %r1) + stmg %r4,%r5,64(%r2) #else stmg %r6,%r15,0(%r2) /* Store registers in jmp_buf. */ #endif diff --git a/sysdeps/s390/s390-64/setjmp.S b/sysdeps/s390/s390-64/setjmp.S index 25d97b6a6a..a962db46ce 100644 --- a/sysdeps/s390/s390-64/setjmp.S +++ b/sysdeps/s390/s390-64/setjmp.S @@ -31,9 +31,10 @@ ENTRY(__sigsetjmp) #ifdef PTR_MANGLE stmg %r6,%r13,0(%r2) /* Store registers in jmp_buf. */ lgr %r4,%r14 - PTR_MANGLE (%r4, %r5) - stg %r4,64(%r2) - stg %r15,72(%r2) + lgr %r5,%r15 + PTR_MANGLE (%r4, %r1) + PTR_MANGLE2 (%r5, %r1) + stmg %r4,%r5,64(%r2) #else stmg %r6,%r15,0(%r2) /* Store registers in jmp_buf. */ #endif diff --git a/sysdeps/sparc/sparc32/__longjmp.S b/sysdeps/sparc/sparc32/__longjmp.S index 1c81c92692..3b2c80b7c3 100644 --- a/sysdeps/sparc/sparc32/__longjmp.S +++ b/sysdeps/sparc/sparc32/__longjmp.S @@ -1,4 +1,5 @@ -/* Copyright (C) 1991, 93, 96, 97, 98, 99, 2000 Free Software Foundation, Inc. +/* Copyright (C) 1991, 1993, 1996, 1997, 1998, 1999, 2000, 2006 + Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -30,6 +31,9 @@ ENTRY(__longjmp) use them while unwinding frames and their register windows. */ ld ENV(o0,JB_FP), %g3 /* Cache target FP in register %g3. */ +#ifdef PTR_DEMANGLE + PTR_DEMANGLE (%g3, %g3, %g4) +#endif mov %o0, %g1 /* ENV in %g1 */ orcc %o1, %g0, %g2 /* VAL in %g2 */ be,a 0f /* Branch if zero; else skip delay slot. */ @@ -62,8 +66,15 @@ LOC(thread): * windows. */ ta ST_FLUSH_WINDOWS +#ifdef PTR_DEMANGLE + ld ENV(g1,JB_PC), %g5 /* Set return PC. */ + ld ENV(g1,JB_SP), %g1 /* Set saved SP on restore below. */ + PTR_DEMANGLE2 (%o7, %g5, %g4) + PTR_DEMANGLE2 (%fp, %g1, %g4) +#else ld ENV(g1,JB_PC), %o7 /* Set return PC. */ ld ENV(g1,JB_SP), %fp /* Set saved SP on restore below. */ +#endif sub %fp, 64, %sp /* Allocate a register frame. */ st %g3, RW_FP /* Set saved FP on restore below. */ retl @@ -71,10 +82,17 @@ LOC(thread): LOC(found): /* We have unwound register windows so %fp matches the target. */ +#ifdef PTR_DEMANGLE + PTR_DEMANGLE2 (%sp, %o0, %g4) +#else mov %o0, %sp /* OK, install new SP. */ +#endif LOC(sp_ok): ld ENV(g1,JB_PC), %o0 /* Extract target return PC. */ +#ifdef PTR_DEMANGLE + PTR_DEMANGLE2 (%o0, %o0, %g4) +#endif jmp %o0 + 8 /* Return there. */ mov %g2, %o0 /* Delay slot: set return value. */ diff --git a/sysdeps/sparc/sparc32/setjmp.S b/sysdeps/sparc/sparc32/setjmp.S index 883ea06297..4ef8724e02 100644 --- a/sysdeps/sparc/sparc32/setjmp.S +++ b/sysdeps/sparc/sparc32/setjmp.S @@ -1,4 +1,5 @@ -/* Copyright (C) 1991, 93, 94, 96, 97, 98, 2002 Free Software Foundation, Inc. +/* Copyright (C) 1991, 1993, 1994, 1996, 1997, 1998, 2002, 2006 + Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -39,9 +40,18 @@ ENTRY (__sigsetjmp) a tail-call for simplicity; it always returns zero. */ ta ST_FLUSH_WINDOWS +#ifdef PTR_MANGLE + PTR_MANGLE (%g1, %o7, %g4) + PTR_MANGLE2 (%g2, %sp, %g4) + PTR_MANGLE2 (%g3, %fp, %g4) + st %g1, [%o0 + (JB_PC * 4)] + st %g2, [%o0 + (JB_SP * 4)] + st %g3, [%o0 + (JB_FP * 4)] +#else st %o7, [%o0 + (JB_PC * 4)] st %sp, [%o0 + (JB_SP * 4)] st %fp, [%o0 + (JB_FP * 4)] +#endif mov %o7, %g1 call __sigjmp_save diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h b/sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h index 355108a493..50c3f42469 100644 --- a/sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h +++ b/sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h @@ -275,6 +275,8 @@ # define PTR_MANGLE(reg, tmpreg) \ ear tmpreg,%a0; \ x reg,STACK_GUARD(tmpreg) +# define PTR_MANGLE2(reg, tmpreg) \ + x reg,STACK_GUARD(tmpreg) # define PTR_DEMANGLE(reg, tmpreg) PTR_MANGLE (reg, tmpreg) # else # define PTR_MANGLE(var) \ diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h b/sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h index 562fc7df76..aadbf74c2b 100644 --- a/sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h +++ b/sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h @@ -277,6 +277,8 @@ sllg tmpreg,tmpreg,32; \ ear tmpreg,%a1; \ xg reg,STACK_GUARD(tmpreg) +# define PTR_MANGLE2(reg, tmpreg) \ + xg reg,STACK_GUARD(tmpreg) # define PTR_DEMANGLE(reg, tmpreg) PTR_MANGLE (reg, tmpreg) # else # define PTR_MANGLE(var) \ diff --git a/sysdeps/unix/sysv/linux/sparc/bits/setjmp.h b/sysdeps/unix/sysv/linux/sparc/bits/setjmp.h index 45aa2655ee..7dc822929f 100644 --- a/sysdeps/unix/sysv/linux/sparc/bits/setjmp.h +++ b/sysdeps/unix/sysv/linux/sparc/bits/setjmp.h @@ -1,4 +1,5 @@ -/* Copyright (C) 1997,1999,2000,2003, 2005 Free Software Foundation, Inc. +/* Copyright (C) 1997, 1999, 2000, 2003, 2005, 2006 + Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -60,7 +61,7 @@ typedef struct __sparc64_jmp_buf /* Test if longjmp to JMPBUF would unwind the frame containing a local variable at ADDRESS. */ #define _JMPBUF_UNWINDS(jmpbuf, address, demangle) \ - ((unsigned long int) (address) < demangle ((jmpbuf)->uc_mcontext.mc_fp)) + ((unsigned long int) (address) < (jmpbuf)->uc_mcontext.mc_fp) #else diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h b/sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h index 29c5158b9f..45f5c44d5d 100644 --- a/sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h +++ b/sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h @@ -1,4 +1,4 @@ -/* Copyright (C) 1997, 2002, 2003, 2004 Free Software Foundation, Inc. +/* Copyright (C) 1997, 2002, 2003, 2004, 2006 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Miguel de Icaza <miguel@gnu.ai.mit.edu>, January 1997. @@ -214,4 +214,24 @@ SYSCALL_ERROR_HANDLER_ENTRY(__syscall_error_handler) \ #endif /* __ASSEMBLER__ */ +/* Pointer mangling support. */ +#if defined NOT_IN_libc && defined IS_IN_rtld +/* We cannot use the thread descriptor because in ld.so we use setjmp + earlier than the descriptor is initialized. */ +#else +# ifdef __ASSEMBLER__ +# define PTR_MANGLE(dreg, reg, tmpreg) \ + ld [%g7 + POINTER_GUARD], tmpreg; \ + xor reg, tmpreg, dreg +# define PTR_DEMANGLE(dreg, reg, tmpreg) PTR_MANGLE (dreg, reg, tmpreg) +# define PTR_MANGLE2(dreg, reg, tmpreg) \ + xor reg, tmpreg, dreg +# define PTR_DEMANGLE2(dreg, reg, tmpreg) PTR_MANGLE2 (dreg, reg, tmpreg) +# else +# define PTR_MANGLE(var) \ + (var) = (__typeof (var)) ((uintptr_t) (var) ^ THREAD_GET_POINTER_GUARD ()) +# define PTR_DEMANGLE(var) PTR_MANGLE (var) +# endif +#endif + #endif /* linux/sparc/sysdep.h */ diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h b/sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h index 071aa3a310..b30cffc5e9 100644 --- a/sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h +++ b/sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h @@ -240,4 +240,24 @@ SYSCALL_ERROR_HANDLER_ENTRY(__syscall_error_handler) \ register windows. So if you poke stack memory directly you add this. */ #define STACK_BIAS 2047 +/* Pointer mangling support. */ +#if defined NOT_IN_libc && defined IS_IN_rtld +/* We cannot use the thread descriptor because in ld.so we use setjmp + earlier than the descriptor is initialized. */ +#else +# ifdef __ASSEMBLER__ +# define PTR_MANGLE(dreg, reg, tmpreg) \ + ldx [%g7 + POINTER_GUARD], tmpreg; \ + xor reg, tmpreg, dreg +# define PTR_DEMANGLE(dreg, reg, tmpreg) PTR_MANGLE (dreg, reg, tmpreg) +# define PTR_MANGLE2(dreg, reg, tmpreg) \ + xor reg, tmpreg, dreg +# define PTR_DEMANGLE2(dreg, reg, tmpreg) PTR_MANGLE2 (dreg, reg, tmpreg) +# else +# define PTR_MANGLE(var) \ + (var) = (__typeof (var)) ((uintptr_t) (var) ^ THREAD_GET_POINTER_GUARD ()) +# define PTR_DEMANGLE(var) PTR_MANGLE (var) +# endif +#endif + #endif /* linux/sparc64/sysdep.h */ |