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authorMark Kettenis <kettenis@gnu.org>2008-08-06 19:56:20 +0000
committerMark Kettenis <kettenis@gnu.org>2008-08-06 19:56:20 +0000
commitf73a15e424e2c7de26a8481e608a1785a21295d9 (patch)
tree03423215e14f3cf177556d94eb5fc0d0f9e28658 /gdb
parent71782a75978b11ff468bb1527a99769bc8d55c54 (diff)
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* i386obsd-nat.c (i386obsd_supply_pcb): Adjust for changes in
OpenBSD 4.3.
Diffstat (limited to 'gdb')
-rw-r--r--gdb/ChangeLog5
-rw-r--r--gdb/i386obsd-nat.c10
2 files changed, 12 insertions, 3 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 8ad9ac4..7d1cac1 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+2008-08-06 Mark Kettenis <kettenis@gnu.org>
+
+ * i386obsd-nat.c (i386obsd_supply_pcb): Adjust for changes in
+ OpenBSD 4.3.
+
2008-08-06 Vladimir Prus <vladimir@codesourcery.com>
Tom Tromey <tromey@redhat.com>
Thiago Jung Bauermann <bauerman@br.ibm.com>
diff --git a/gdb/i386obsd-nat.c b/gdb/i386obsd-nat.c
index 1c45865..1585efb 100644
--- a/gdb/i386obsd-nat.c
+++ b/gdb/i386obsd-nat.c
@@ -60,10 +60,11 @@ i386obsd_supply_pcb (struct regcache *regcache, struct pcb *pcb)
/* Read the stack frame, and check its validity. We do this by
checking if the saved interrupt priority level in the stack frame
looks reasonable.. */
- read_memory (pcb->pcb_esp, (char *) &sf, sizeof sf);
- if ((unsigned int) sf.sf_ppl < 0x100 && (sf.sf_ppl & 0xf) == 0)
+#ifdef PCB_SAVECTX
+ if ((pcb->pcb_flags & PCB_SAVECTX) == 0)
{
/* Yes, we have a frame that matches cpu_switch(). */
+ read_memory (pcb->pcb_esp, (char *) &sf, sizeof sf);
pcb->pcb_esp += sizeof (struct switchframe);
regcache_raw_supply (regcache, I386_EDI_REGNUM, &sf.sf_edi);
regcache_raw_supply (regcache, I386_ESI_REGNUM, &sf.sf_esi);
@@ -71,9 +72,12 @@ i386obsd_supply_pcb (struct regcache *regcache, struct pcb *pcb)
regcache_raw_supply (regcache, I386_EIP_REGNUM, &sf.sf_eip);
}
else
+#endif
{
/* No, the pcb must have been last updated by savectx(). */
- pcb->pcb_esp += 4;
+ pcb->pcb_esp = pcb->pcb_ebp;
+ pcb->pcb_ebp = read_memory_integer(pcb->pcb_esp, 4);
+ sf.sf_eip = read_memory_integer(pcb->pcb_esp + 4, 4);
regcache_raw_supply (regcache, I386_EIP_REGNUM, &sf);
}