/* Target-dependent code for OpenBSD/i386.
- Copyright (C) 1988, 1989, 1991, 1992, 1994, 1996, 2000, 2001, 2002, 2003,
- 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
+ Copyright (C) 1988-2013 Free Software Foundation, Inc.
This file is part of GDB.
size_t buflen = sizeof sigreturn;
const int *offset;
gdb_byte *buf;
- char *name;
+ const char *name;
/* If the function has a valid symbol name, it isn't a
trampoline. */
i386obsd_supply_uthread (struct regcache *regcache,
int regnum, CORE_ADDR addr)
{
+ struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
CORE_ADDR sp_addr = addr + I386OBSD_UTHREAD_ESP_OFFSET;
CORE_ADDR sp = 0;
gdb_byte buf[4];
int offset;
/* Fetch stack pointer from thread structure. */
- sp = read_memory_unsigned_integer (sp_addr, 4);
+ sp = read_memory_unsigned_integer (sp_addr, 4, byte_order);
/* Adjust the stack pointer such that it looks as if we just
returned from _thread_machdep_switch. */
offset = i386obsd_uthread_reg_offset[I386_EIP_REGNUM] + 4;
- store_unsigned_integer (buf, 4, sp + offset);
+ store_unsigned_integer (buf, 4, byte_order, sp + offset);
regcache_raw_supply (regcache, I386_ESP_REGNUM, buf);
}
/* Fetch stack pointer from thread structure (if we didn't
do so already). */
if (sp == 0)
- sp = read_memory_unsigned_integer (sp_addr, 4);
+ sp = read_memory_unsigned_integer (sp_addr, 4, byte_order);
/* Read the saved register from the stack frame. */
read_memory (sp + i386obsd_uthread_reg_offset[i], buf, 4);
i386obsd_collect_uthread (const struct regcache *regcache,
int regnum, CORE_ADDR addr)
{
+ struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
CORE_ADDR sp_addr = addr + I386OBSD_UTHREAD_ESP_OFFSET;
CORE_ADDR sp = 0;
gdb_byte buf[4];
stored into the thread structure. */
offset = i386obsd_uthread_reg_offset[I386_EIP_REGNUM] + 4;
regcache_raw_collect (regcache, I386_ESP_REGNUM, buf);
- sp = extract_unsigned_integer (buf, 4) - offset;
+ sp = extract_unsigned_integer (buf, 4, byte_order) - offset;
/* Store the stack pointer. */
- write_memory_unsigned_integer (sp_addr, 4, sp);
+ write_memory_unsigned_integer (sp_addr, 4, byte_order, sp);
/* The stack pointer was (potentially) modified. Make sure we
build a proper stack frame. */
/* Fetch stack pointer from thread structure (if we didn't
calculate it already). */
if (sp == 0)
- sp = read_memory_unsigned_integer (sp_addr, 4);
+ sp = read_memory_unsigned_integer (sp_addr, 4, byte_order);
/* Write the register into the stack frame. */
regcache_raw_collect (regcache, i, buf);
static struct trad_frame_cache *
i386obsd_trapframe_cache (struct frame_info *this_frame, void **this_cache)
{
+ struct gdbarch *gdbarch = get_frame_arch (this_frame);
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
struct trad_frame_cache *cache;
CORE_ADDR func, sp, addr;
ULONGEST cs;
- char *name;
+ const char *name;
int i;
if (*this_cache)
/* Read %cs from trap frame. */
addr += i386obsd_tf_reg_offset[I386_CS_REGNUM];
- cs = read_memory_unsigned_integer (addr, 4);
+ cs = read_memory_unsigned_integer (addr, 4, byte_order);
if ((cs & I386_SEL_RPL) == I386_SEL_UPL)
{
/* Trap from user space; terminate backtrace. */
- trad_frame_set_id (cache, null_frame_id);
+ trad_frame_set_id (cache, outer_frame_id);
}
else
{
void **this_prologue_cache)
{
ULONGEST cs;
- char *name;
+ const char *name;
/* Check Current Privilege Level and bail out if we're not executing
in kernel space. */
frame, but SIGTRAMP_FRAME would print <signal handler called>,
which really is not what we want here. */
NORMAL_FRAME,
+ default_frame_unwind_stop_reason,
i386obsd_trapframe_this_id,
i386obsd_trapframe_prev_register,
NULL,