From 844a34a2ae4b493f86ed1e79c5992329b54a5511 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Sat, 6 Dec 2003 00:20:16 +0000 Subject: Update. 2003-12-05 Martin Schwidefsky * sysdeps/s390/s390-32/elf/setjmp.S (setjmp, __setjmp): Add END statements. * sysdeps/s390/s390-64/elf/setjmp.S (setjmp, __setjmp): Likewise. * sysdeps/s390/s390-32/sysdep.h (ENTRY): Add cfi_startproc directive. (END): Add cfi_endproc directive. * sysdeps/s390/s390-64/sysdep.h (ENTRY, END): Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/socket.S (__socket): Remove cfi_startproc and cfi_endproc directive. * sysdeps/unix/sysv/linux/s390/s390-64/socket.S (__socket): Likewise. * sysdeps/s390/s390-32/addmul_1.S (__mpn_addmul_1): Add CFI directives. * sysdeps/s390/s390-32/add_n.S (__mpn_add_n): Likewise. * sysdeps/s390/s390-64/add_n.S (__mpn_add_n): Likewise. * sysdeps/s390/s390-32/dl-machine.h (ELF_MACHINE_RUNTIME_TRAMPOLINE): Likewise. * sysdeps/s390/s390-64/dl-machine.h (ELF_MACHINE_RUNTIME_TRAMPOLINE): Likewise. * sysdeps/s390/s390-32/mul_1.S (__mpn_mul_1): Likewise. * sysdeps/s390/s390-32/sub_n.S (__mpn_sub_n): Likewise. * sysdeps/s390/s390-64/sub_n.S (__mpn_sub_n): Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/mmap64.S (__mmap64): Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/mmap.S (__mmap): Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/mmap.S (__mmap): Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/syscall.S (syscall): Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/syscall.S (syscall): Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/sysdep.S (__syscall_error): Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/sysdep.S (__syscall_error): Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/clone.S (__clone): Add CFI directives. Move thread_start out of ENTRY/PSEUDO_END block to make backchain terminate. * sysdeps/unix/sysv/linux/s390/s390-64/clone.S (__clone): Likewise. * sysdeps/s390/s390-32/backtrace.c (trace_arg): New structure. (unwind_backtrace, unwind_getip): New variables. (init, __backchain_backtrace, backtrace_helper): New functions. (__backtrace): Use unwind info for backtrace instead of backchain walking if the unwind functions can be found. * sysdeps/s390/s390-64/backtrace.c: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/posix_fadvise64.c: New file. * sysdeps/unix/sysv/linux/s390/sys/procfs.h (ELF_NGREG32): New #define. (elf_greg_t32, elf_gregset_t32, elf_fpregset_t32): New types. (elf_prstatus32, elf_prpsinfo32): New structures. (prgregset32_t, prfpregset32_t, prstatus32_t, prpsinfo32_t): New types. * scripts/data/c++-types-s390-linux-gnu.data: New file. * scripts/data/c++-types-s390x-linux-gnu.data: New file. --- sysdeps/s390/s390-32/add_n.S | 1 + sysdeps/s390/s390-32/addmul_1.S | 1 + sysdeps/s390/s390-32/backtrace.c | 68 +++++++++++++++++++++++++++++++++++---- sysdeps/s390/s390-32/dl-machine.h | 12 +++++++ sysdeps/s390/s390-32/elf/setjmp.S | 6 ++++ sysdeps/s390/s390-32/mul_1.S | 1 + sysdeps/s390/s390-32/sub_n.S | 1 + sysdeps/s390/s390-32/sysdep.h | 2 ++ 8 files changed, 86 insertions(+), 6 deletions(-) (limited to 'sysdeps/s390/s390-32') diff --git a/sysdeps/s390/s390-32/add_n.S b/sysdeps/s390/s390-32/add_n.S index 8183017fac..b7e6682ddf 100644 --- a/sysdeps/s390/s390-32/add_n.S +++ b/sysdeps/s390/s390-32/add_n.S @@ -33,6 +33,7 @@ .text ENTRY(__mpn_add_n) st %r6,24(%r15) # save register 6 + cfi_offset (%r6, -72) sr %r1,%r1 lhi %r0,1 # cannot use ahi to add carry, use alr .L0: l %r6,0(%r1,%r3) # .L0 -> no carry from last add diff --git a/sysdeps/s390/s390-32/addmul_1.S b/sysdeps/s390/s390-32/addmul_1.S index f83c34500f..40ba871623 100644 --- a/sysdeps/s390/s390-32/addmul_1.S +++ b/sysdeps/s390/s390-32/addmul_1.S @@ -33,6 +33,7 @@ .text ENTRY(__mpn_addmul_1) st %r6,24(%r15) + cfi_offset (%r6, -72) slr %r6,%r6 # cy_limb = 0 .L0: icm %r1,15,0(%r3) # get s1_ptr[i] mr %r0,%r5 # umul_ppmm(prod_high,prod_low,s1_ptr[j],s2_limb) diff --git a/sysdeps/s390/s390-32/backtrace.c b/sysdeps/s390/s390-32/backtrace.c index 11d2219c2c..c52750cecf 100644 --- a/sysdeps/s390/s390-32/backtrace.c +++ b/sysdeps/s390/s390-32/backtrace.c @@ -1,5 +1,5 @@ /* Return backtrace of current program state. - Copyright (C) 2000, 2001 Free Software Foundation, Inc. + Copyright (C) 2000, 2001, 2003 Free Software Foundation, Inc. Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). This file is part of the GNU C Library. @@ -18,8 +18,12 @@ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ +#include +#include #include #include +#include +#include /* This is a global variable set at program start time. It marks the highest used stack address. */ @@ -51,10 +55,31 @@ struct layout int empty[2]; }; -int -__backtrace (array, size) - void **array; - int size; +struct trace_arg +{ + void **array; + int cnt, size; +}; + +static _Unwind_Reason_Code (*unwind_backtrace) (_Unwind_Trace_Fn, void *); +static _Unwind_Ptr (*unwind_getip) (struct _Unwind_Context *); + +static void +init (void) +{ + void *handle = __libc_dlopen ("libgcc_s.so.1"); + + if (handle == NULL) + return; + + unwind_backtrace = __libc_dlsym (handle, "_Unwind_Backtrace"); + unwind_getip = __libc_dlsym (handle, "_Unwind_GetIP"); + if (unwind_getip == NULL) + unwind_backtrace = NULL; +} + +static int +__backchain_backtrace (void **array, int size) { /* We assume that all the code is generated with frame pointers set. */ struct layout *stack; @@ -71,11 +96,42 @@ __backtrace (array, size) out of range. */ break; - array[cnt++] = stack->save_grps[8] & 0x7fffffff; + array[cnt++] = (void *) (stack->save_grps[8] & 0x7fffffff); stack = (struct layout *) stack->back_chain; } return cnt; } + +static _Unwind_Reason_Code +backtrace_helper (struct _Unwind_Context *ctx, void *a) +{ + struct trace_arg *arg = a; + + /* We are first called with address in the __backtrace function. + Skip it. */ + if (arg->cnt != -1) + arg->array[arg->cnt] = (void *) unwind_getip (ctx); + if (++arg->cnt == arg->size) + return _URC_END_OF_STACK; + return _URC_NO_REASON; +} + +int +__backtrace (void **array, int size) +{ + struct trace_arg arg = { .array = array, .size = size, .cnt = -1 }; + __libc_once_define (static, once); + + __libc_once (once, init); + if (unwind_backtrace == NULL) + return __backchain_backtrace (array, size); + + if (size >= 1) + unwind_backtrace (backtrace_helper, &arg); + + return arg.cnt != -1 ? arg.cnt : 0; +} + weak_alias (__backtrace, backtrace) diff --git a/sysdeps/s390/s390-32/dl-machine.h b/sysdeps/s390/s390-32/dl-machine.h index 9eb04192c2..7a7dfbebb3 100644 --- a/sysdeps/s390/s390-32/dl-machine.h +++ b/sysdeps/s390/s390-32/dl-machine.h @@ -146,12 +146,14 @@ elf_machine_runtime_setup (struct link_map *l, int lazy, int profile) .globl _dl_runtime_resolve\n\ .type _dl_runtime_resolve, @function\n\ .align 16\n\ + " CFI_STARTPROC "\n\ _dl_runtime_resolve:\n\ # save registers\n\ stm 2,5,32(15)\n\ st 14,48(15)\n\ lr 0,15\n\ ahi 15,-96\n\ + " CFI_ADJUST_CFA_OFFSET(96)"\n\ st 0,0(15)\n\ # load args saved by PLT\n\ lm 2,3,120(15)\n\ @@ -162,21 +164,25 @@ _dl_runtime_resolve:\n\ lr 1,2 # function addr returned in r2\n\ # restore registers\n\ ahi 15,96\n\ + " CFI_ADJUST_CFA_OFFSET(-96)" \n\ l 14,48(15)\n\ lm 2,5,32(15)\n\ br 1\n\ 1: .long fixup-1b\n\ + " CFI_ENDPROC "\n\ .size _dl_runtime_resolve, .-_dl_runtime_resolve\n\ \n\ .globl _dl_runtime_profile\n\ .type _dl_runtime_profile, @function\n\ .align 16\n\ + " CFI_STARTPROC "\n\ _dl_runtime_profile:\n\ # save registers\n\ stm 2,5,32(15)\n\ st 14,48(15)\n\ lr 0,15\n\ ahi 15,-96\n\ + " CFI_ADJUST_CFA_OFFSET(96)"\n\ st 0,0(15)\n\ # load args saved by PLT\n\ lm 2,3,120(15)\n\ @@ -189,10 +195,12 @@ _dl_runtime_profile:\n\ lr 1,2 # function addr returned in r2\n\ # restore registers\n\ ahi 15,96\n\ + " CFI_ADJUST_CFA_OFFSET(-96)" \n\ l 14,48(15)\n\ lm 2,5,32(15)\n\ br 1\n\ 1: .long profile_fixup-1b\n\ + " CFI_ENDPROC "\n\ .size _dl_runtime_profile, .-_dl_runtime_profile\n\ "); #else @@ -204,6 +212,7 @@ _dl_runtime_profile:\n\ .type _dl_runtime_resolve, @function\n\ .type _dl_runtime_profile, @function\n\ .align 16\n\ + " CFI_STARTPROC "\n\ _dl_runtime_resolve:\n\ _dl_runtime_profile:\n\ # save registers\n\ @@ -211,6 +220,7 @@ _dl_runtime_profile:\n\ st 14,48(15)\n\ lr 0,15\n\ ahi 15,-96\n\ + " CFI_ADJUST_CFA_OFFSET(96)"\n\ st 0,0(15)\n\ # load args saved by PLT\n\ lm 2,3,120(15)\n\ @@ -223,10 +233,12 @@ _dl_runtime_profile:\n\ lr 1,2 # function addr returned in r2\n\ # restore registers\n\ ahi 15,96\n\ + " CFI_ADJUST_CFA_OFFSET(-96)" \n\ l 14,48(15)\n\ lm 2,5,32(15)\n\ br 1\n\ 1: .long fixup-1b\n\ + " CFI_ENDPROC "\n\ .size _dl_runtime_resolve, .-_dl_runtime_resolve\n\ .size _dl_runtime_profile, .-_dl_runtime_profile\n\ "); diff --git a/sysdeps/s390/s390-32/elf/setjmp.S b/sysdeps/s390/s390-32/elf/setjmp.S index f785201d75..0d1fa8e41d 100644 --- a/sysdeps/s390/s390-32/elf/setjmp.S +++ b/sysdeps/s390/s390-32/elf/setjmp.S @@ -34,9 +34,15 @@ END (setjmp) /* Binary compatibility entry point. */ ENTRY(_setjmp) .weak C_SYMBOL_NAME (_setjmp) + lhi %r3,0 /* second argument of zero */ + j .Linternal_sigsetjmp /* branch relativ to __sigsetjmp */ +END (_setjmp) libc_hidden_def (_setjmp) + ENTRY(__setjmp) lhi %r3,0 /* second argument of zero */ + j .Linternal_sigsetjmp /* branch relativ to __sigsetjmp */ +END (__setjmp) ENTRY(__sigsetjmp) .Linternal_sigsetjmp: diff --git a/sysdeps/s390/s390-32/mul_1.S b/sysdeps/s390/s390-32/mul_1.S index 92c18e44b4..0194476188 100644 --- a/sysdeps/s390/s390-32/mul_1.S +++ b/sysdeps/s390/s390-32/mul_1.S @@ -33,6 +33,7 @@ .text ENTRY(__mpn_mul_1) st %r6,24(%r15) + cfi_offset (%r6, -72) slr %r6,%r6 # cy_limb = 0 .L0: icm %r1,15,0(%r3) # get s1_ptr[i] mr %r0,%r5 # umul_ppmm(prod_high,prod_low,s1_ptr[j],s2_limb) diff --git a/sysdeps/s390/s390-32/sub_n.S b/sysdeps/s390/s390-32/sub_n.S index 1241b1bbd4..058183bc8b 100644 --- a/sysdeps/s390/s390-32/sub_n.S +++ b/sysdeps/s390/s390-32/sub_n.S @@ -32,6 +32,7 @@ ENTRY(__mpn_sub_n) st %r6,24(%r15) # save register 6 + cfi_offset (%r6, -72) sr %r1,%r1 lhi %r0,1 # cannot use ahi to add carry, use slr .L0: l %r6,0(%r1,%r3) # .L0 -> no carry from last sub diff --git a/sysdeps/s390/s390-32/sysdep.h b/sysdeps/s390/s390-32/sysdep.h index 941575b817..f2d5bada88 100644 --- a/sysdeps/s390/s390-32/sysdep.h +++ b/sysdeps/s390/s390-32/sysdep.h @@ -51,10 +51,12 @@ ASM_TYPE_DIRECTIVE (C_SYMBOL_NAME(name),@function) \ .align ALIGNARG(2); \ C_LABEL(name) \ + cfi_startproc; \ CALL_MCOUNT #undef END #define END(name) \ + cfi_endproc; \ ASM_SIZE_DIRECTIVE(name) \ /* If compiled for profiling, call `mcount' at the start of each function. */ -- cgit v1.2.3