/* Target-dependent code for DICOS running on i386's, for GDB.
- Copyright (C) 2008 Free Software Foundation, Inc.
+ Copyright (C) 2008, 2009 Free Software Foundation, Inc.
This file is part of GDB.
#include "inferior.h"
static CORE_ADDR
-i386_dicos_frame_align (struct gdbarch *gdbarch, CORE_ADDR sp)
+i386_dicos_push_dummy_code (struct gdbarch *gdbarch,
+ CORE_ADDR sp, CORE_ADDR funaddr,
+ struct value **args, int nargs,
+ struct type *value_type,
+ CORE_ADDR *real_pc, CORE_ADDR *bp_addr,
+ struct regcache *regcache)
{
- /* Having a call dummy on the stack requires a gdbarch_frame_align
- method to align the breakpoint instruction in the stack.
- Strictly speaking, we could just return SP pristine on x86. But,
- as long as we're providing a frame align method, might as well
- align for efficiency. */
- return sp & -(CORE_ADDR)16;
+ int bplen;
+ CORE_ADDR bppc = sp;
+
+ gdbarch_breakpoint_from_pc (gdbarch, &bppc, &bplen);
+ *bp_addr = sp - bplen;
+ *real_pc = funaddr;
+
+ return *bp_addr;
}
static void
set_solib_ops (gdbarch, &solib_target_so_ops);
+ /* Every process, although has its own address space, sees the same
+ list of shared libraries. */
+ set_gdbarch_has_global_solist (gdbarch, 1);
+
/* There's no (standard definition of) entry point or a guaranteed
text location we could find with a symbol where to place the call
dummy, so we put it on the stack. */
set_gdbarch_call_dummy_location (gdbarch, ON_STACK);
- set_gdbarch_frame_align (gdbarch, i386_dicos_frame_align);
+ set_gdbarch_push_dummy_code (gdbarch, i386_dicos_push_dummy_code);
+
+ /* DICOS rewinds itself. Need to override the i386 default which is
+ to decrement the PC. */
+ set_gdbarch_decr_pc_after_break (gdbarch, 0);
}
/* Look in the elf symbol table of ABFD for a symbol named WANTED.