diff options
| -rw-r--r-- | ChangeLog | 9 | ||||
| -rw-r--r-- | sysdeps/sparc/sparc64/backtrace.c | 58 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/sparc/sparc32/sigcontextinfo.h | 3 |
3 files changed, 70 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog index cd093a5c92..b52961bbc5 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,12 @@ +2008-05-20 Jakub Jelinek <jakub@redhat.com> + + * sysdeps/unix/sysv/linux/sparc/sparc32/sigcontextinfo.h + (FIRST_FRAME_POINTER): Define. + +2008-05-09 David S. Miller <davem@davemloft.net> + + * sysdeps/sparc/sparc64/backtrace.c: New file. + 2008-05-14 David S. Miller <davem@davemloft.net> * sysdeps/sparc/machine-gmon.h: New file. diff --git a/sysdeps/sparc/sparc64/backtrace.c b/sysdeps/sparc/sparc64/backtrace.c new file mode 100644 index 0000000000..6d7e429e2e --- /dev/null +++ b/sysdeps/sparc/sparc64/backtrace.c @@ -0,0 +1,58 @@ +/* Return backtrace of current program state. + Copyright (C) 2008 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by David S. Miller <davem@davemloft.net> + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <execinfo.h> +#include <stddef.h> +#include <bp-checks.h> +#include <sysdep.h> + +struct layout +{ + unsigned long locals[8]; + unsigned long ins[6]; + unsigned long next; + void *__unbounded return_address; +}; + +int +__backtrace (void **array, int size) +{ + struct layout *current; + unsigned long fp; + int count; + + asm volatile ("flushw"); + asm volatile ("mov %%fp, %0" : "=r"(fp)); + current = (struct layout *__unbounded) (fp + STACK_BIAS); + current = BOUNDED_1 (current); + + for (count = 0; count < size; count++) + { + array[count] = current->return_address; + if (!current->next) + break; + current = (struct layout *__unbounded) (current->next + STACK_BIAS); + current = BOUNDED_1 (current); + } + + return count; +} +weak_alias (__backtrace, backtrace) +libc_hidden_def (__backtrace) diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/sigcontextinfo.h b/sysdeps/unix/sysv/linux/sparc/sparc32/sigcontextinfo.h index 2c2770d071..59656978b8 100644 --- a/sysdeps/unix/sysv/linux/sparc/sparc32/sigcontextinfo.h +++ b/sysdeps/unix/sysv/linux/sparc/sparc32/sigcontextinfo.h @@ -20,6 +20,9 @@ #define SIGCONTEXT struct sigcontext * #define SIGCONTEXT_EXTRA_ARGS #define GET_PC(__ctx) ((void *) ((__ctx)->si_regs.pc)) +#define FIRST_FRAME_POINTER \ + ({ void *ret; \ + asm volatile ("ta 3; add %%fp, 56, %0" : "=r" (ret)); ret; }) #define ADVANCE_STACK_FRAME(__next) \ ((void *) (((unsigned *)(__next))+14)) |