diff options
Diffstat (limited to 'gdb/i386obsd-tdep.c')
| -rw-r--r-- | gdb/i386obsd-tdep.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/gdb/i386obsd-tdep.c b/gdb/i386obsd-tdep.c index dafb657af8c..3202f160345 100644 --- a/gdb/i386obsd-tdep.c +++ b/gdb/i386obsd-tdep.c @@ -358,7 +358,7 @@ i386obsd_trapframe_cache(struct frame_info *next_frame, void **this_cache) sp = frame_unwind_register_unsigned (next_frame, I386_ESP_REGNUM); find_pc_partial_function (func, &name, NULL, NULL); - if (name && strncmp(name, "Xintr", 5) == 0) + if (name && strncmp (name, "Xintr", 5) == 0) addr = sp + 8; /* It's an interrupt frame. */ else addr = sp; @@ -372,7 +372,7 @@ i386obsd_trapframe_cache(struct frame_info *next_frame, void **this_cache) cs = read_memory_unsigned_integer (addr, 4); if ((cs & I386_SEL_RPL) == I386_SEL_UPL) { - /* Trap from use space; terminate backtrace. */ + /* Trap from user space; terminate backtrace. */ trad_frame_set_id (cache, null_frame_id); } else @@ -416,9 +416,11 @@ i386obsd_trapframe_sniffer (const struct frame_unwind *self, ULONGEST cs; char *name; + /* Check Current Privilige Level and bail out if we're not executing + in kernel space. */ cs = frame_unwind_register_unsigned (next_frame, I386_CS_REGNUM); if ((cs & I386_SEL_RPL) == I386_SEL_UPL) - return NULL; + return 0; find_pc_partial_function (frame_pc_unwind (next_frame), &name, NULL, NULL); return (name && ((strcmp (name, "calltrap") == 0) |