From ed8f38ba440fcad087ce7fa0f06e05a1e4b39bbd Mon Sep 17 00:00:00 2001 From: Jakub Jelinek Date: Tue, 20 May 2008 19:23:00 +0000 Subject: * sysdeps/unix/sysv/linux/sparc/sparc32/sigcontextinfo.h (FIRST_FRAME_POINTER): Define. * sysdeps/sparc/sparc64/backtrace.c: New file. 2008-05-20 Jakub Jelinek * sysdeps/unix/sysv/linux/sparc/sparc32/sigcontextinfo.h (FIRST_FRAME_POINTER): Define. 2008-05-09 David S. Miller * sysdeps/sparc/sparc64/backtrace.c: New file. --- sysdeps/sparc/sparc64/backtrace.c | 58 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 58 insertions(+) create mode 100644 sysdeps/sparc/sparc64/backtrace.c (limited to 'sysdeps/sparc') 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 + + 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 +#include +#include +#include + +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) -- cgit 1.4.1