#include "defs.h"
#include "frame.h"
#include "gdbcore.h"
#include "value.h"
#include "alpha-tdep.h"
static CORE_ADDR
alpha_osf1_skip_sigtramp_frame (struct frame_info *frame, CORE_ADDR pc)
{
char *name;
find_pc_partial_function (pc, &name, (CORE_ADDR *) NULL, (CORE_ADDR *) NULL);
if (PC_IN_SIGTRAMP (pc, name))
return frame->frame;
return 0;
}
static int
alpha_osf1_pc_in_sigtramp (CORE_ADDR pc, char *func_name)
{
return (func_name != NULL && STREQ ("__sigtramp", func_name));
}
static CORE_ADDR
alpha_osf1_sigcontext_addr (struct frame_info *frame)
{
return (read_memory_integer (frame->next ? frame->next->frame
: frame->frame, 8));
}
static void
alpha_osf1_init_abi (struct gdbarch_info info,
struct gdbarch *gdbarch)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
set_gdbarch_pc_in_sigtramp (gdbarch, alpha_osf1_pc_in_sigtramp);
set_gdbarch_software_single_step (gdbarch, alpha_software_single_step);
tdep->skip_sigtramp_frame = alpha_osf1_skip_sigtramp_frame;
tdep->sigcontext_addr = alpha_osf1_sigcontext_addr;
tdep->jb_pc = 2;
tdep->jb_elt_size = 8;
}
void
_initialize_alpha_osf1_tdep (void)
{
gdbarch_register_osabi (bfd_arch_alpha, GDB_OSABI_OSF1, alpha_osf1_init_abi);
}