Author: marcel
Date: Sat Jan 22 00:32:12 2011
New Revision: 217708
URL: http://svn.freebsd.org/changeset/base/217708
Log:
Fix backtraces by defining ksym_start & ksym_end if DDB is
defined. The kernel linker doesn't deal with symbols of
type NOTYPE and typically gives the wrong symbol ($a) for
local symbols.
Obtained from: Juniper Networks, Inc.
Modified:
head/sys/arm/mv/mv_machdep.c
Modified: head/sys/arm/mv/mv_machdep.c
==============================================================================
--- head/sys/arm/mv/mv_machdep.c Sat Jan 22 00:19:15 2011
(r217707)
+++ head/sys/arm/mv/mv_machdep.c Sat Jan 22 00:32:12 2011
(r217708)
@@ -118,6 +118,10 @@ extern unsigned char _edata[];
extern unsigned char __bss_start[];
extern unsigned char _end[];
+#ifdef DDB
+extern vm_offset_t ksym_start, ksym_end;
+#endif
+
extern u_int data_abort_handler_address;
extern u_int prefetch_abort_handler_address;
extern u_int undefined_handler_address;
@@ -330,6 +334,10 @@ initarm(void *mdp, void *unused __unused
dtbp = MD_FETCH(kmdp, MODINFOMD_DTBP, vm_offset_t);
lastaddr = MD_FETCH(kmdp, MODINFOMD_KERNEND,
vm_offset_t);
+#ifdef DDB
+ ksym_start = MD_FETCH(kmdp, MODINFOMD_SSYM, uintptr_t);
+ ksym_end = MD_FETCH(kmdp, MODINFOMD_ESYM, uintptr_t);
+#endif
}
} else {
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