Author: gonzo
Date: Mon Nov 28 19:48:04 2011
New Revision: 228091
URL: http://svn.freebsd.org/changeset/base/228091
Log:
- Fix backtrace for MIPS64 platform
Modified:
head/sys/mips/mips/db_trace.c
Modified: head/sys/mips/mips/db_trace.c
==============================================================================
--- head/sys/mips/mips/db_trace.c Mon Nov 28 19:45:47 2011
(r228090)
+++ head/sys/mips/mips/db_trace.c Mon Nov 28 19:48:04 2011
(r228091)
@@ -30,7 +30,7 @@ extern char edata[];
/*
* A function using a stack frame has the following instruction as the first
- * one: addiu sp,sp,-<frame_size>
+ * one: [d]addiu sp,sp,-<frame_size>
*
* We make use of this to detect starting address of a function. This works
* better than using 'j ra' instruction to signify end of the previous
@@ -39,7 +39,8 @@ extern char edata[];
*
* XXX the abi does not require that the addiu instruction be the first one.
*/
-#define MIPS_START_OF_FUNCTION(ins) (((ins) & 0xffff8000) ==
0x27bd8000)
+#define MIPS_START_OF_FUNCTION(ins) ((((ins) & 0xffff8000) ==
0x27bd8000) \
+ || (((ins) & 0xffff8000) == 0x67bd8000))
/*
* MIPS ABI 3.0 requires that all functions return using the 'j ra' instruction
@@ -329,6 +330,8 @@ loop:
case OP_ADDI:
case OP_ADDIU:
+ case OP_DADDI:
+ case OP_DADDIU:
/* look for stack pointer adjustment */
if (i.IType.rs != 29 || i.IType.rt != 29)
break;
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