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authorJakub Jelinek <jakub@redhat.com>2008-05-20 19:23:00 +0000
committerJakub Jelinek <jakub@redhat.com>2008-05-20 19:23:00 +0000
commited8f38ba440fcad087ce7fa0f06e05a1e4b39bbd (patch)
treeff65917095744eb97b0230872233179cb41ff2cc
parentc1b8190a1d648ebda8211a6a44e2c7d32ecff484 (diff)
* sysdeps/unix/sysv/linux/sparc/sparc32/sigcontextinfo.h cvs/fedora-glibc-20080520T1924
(FIRST_FRAME_POINTER): Define. * sysdeps/sparc/sparc64/backtrace.c: New file. 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.
-rw-r--r--ChangeLog9
-rw-r--r--sysdeps/sparc/sparc64/backtrace.c58
-rw-r--r--sysdeps/unix/sysv/linux/sparc/sparc32/sigcontextinfo.h3
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))