2003-06-01 Andrew Cagney <cagney@redhat.com>

[deliverable/binutils-gdb.git] / gdb / i386nbsd-tdep.c

diff --git a/gdb/i386nbsd-tdep.c b/gdb/i386nbsd-tdep.c
index dccd5cd5eae757342d5cdb053bebecf0d594630e..601530bce253cdbf724ebe29ddb741a38db619ed 100644 (file)
--- a/gdb/i386nbsd-tdep.c
+++ b/gdb/i386nbsd-tdep.c
@@ -1,5 +1,5 @@
 /* Target-dependent code for NetBSD/i386, for GDB.
-   Copyright 1988, 1989, 1991, 1992, 1994, 1996, 2000, 2001, 2002
+   Copyright 1988, 1989, 1991, 1992, 1994, 1996, 2000, 2001, 2002, 2003
    Free Software Foundation, Inc.
 
    This file is part of GDB.
@@ -24,11 +24,14 @@
 #include "gdbcore.h"
 #include "regcache.h"
 #include "arch-utils.h"
+#include "osabi.h"
 
 #include "i386-tdep.h"
 #include "i387-tdep.h"
 #include "nbsd-tdep.h"
 
+#include "solib-svr4.h"
+
 /* Map a GDB register number to an offset in the reg structure.  */
 static int regmap[] =
 {
@@ -231,14 +234,30 @@ i386nbsd_sigtramp_offset (CORE_ADDR pc)
 static int
 i386nbsd_pc_in_sigtramp (CORE_ADDR pc, char *name)
 {
-
   return (nbsd_pc_in_sigtramp (pc, name)
          || i386nbsd_sigtramp_offset (pc) >= 0);
 }
 
 /* From <machine/signal.h>.  */
-int i386nbsd_sc_pc_offset = 44;
-int i386nbsd_sc_sp_offset = 56;
+int i386nbsd_sc_reg_offset[I386_NUM_GREGS] =
+{
+  10 * 4,                      /* %eax */
+  9 * 4,                       /* %ecx */
+  8 * 4,                       /* %edx */
+  7 * 4,                       /* %ebx */
+  14 * 4,                      /* %esp */
+  6 * 4,                       /* %ebp */
+  5 * 4,                       /* %esi */
+  4 * 4,                       /* %edi */
+  11 * 4,                      /* %eip */
+  13 * 4,                      /* %eflags */
+  12 * 4,                      /* %cs */
+  15 * 4,                      /* %ss */
+  3 * 4,                       /* %ds */
+  2 * 4,                       /* %es */
+  1 * 4,                       /* %fs */
+  0 * 4                                /* %gs */
+};
 
 static void 
 i386nbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
@@ -250,14 +269,19 @@ i386nbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
 
   /* NetBSD has different signal trampoline conventions.  */
   set_gdbarch_pc_in_sigtramp (gdbarch, i386nbsd_pc_in_sigtramp);
+  /* FIXME: kettenis/20020906: We should probably provide
+     NetBSD-specific versions of these functions if we want to
+     recognize signal trampolines that live on the stack.  */
+  set_gdbarch_sigtramp_start (gdbarch, NULL);
+  set_gdbarch_sigtramp_end (gdbarch, NULL);
 
   /* NetBSD uses -freg-struct-return by default.  */
   tdep->struct_return = reg_struct_return;
 
   /* NetBSD has a `struct sigcontext' that's different from the
      origional 4.3 BSD.  */
-  tdep->sc_pc_offset = i386nbsd_sc_pc_offset;
-  tdep->sc_sp_offset = i386nbsd_sc_sp_offset;
+  tdep->sc_reg_offset = i386nbsd_sc_reg_offset;
+  tdep->sc_num_regs = I386_NUM_GREGS;
 }
 
 /* NetBSD ELF.  */
@@ -275,6 +299,8 @@ i386nbsdelf_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
   /* NetBSD ELF uses SVR4-style shared libraries.  */
   set_gdbarch_in_solib_call_trampoline (gdbarch,
                                         generic_in_solib_call_trampoline);
+  set_solib_svr4_fetch_link_map_offsets (gdbarch,
+                                nbsd_ilp32_solib_svr4_fetch_link_map_offsets);
 
   /* NetBSD ELF uses -fpcc-struct-return by default.  */
   tdep->struct_return = pcc_struct_return;
@@ -291,8 +317,8 @@ _initialize_i386nbsd_tdep (void)
   add_core_fns (&i386nbsd_core_fns);
   add_core_fns (&i386nbsd_elfcore_fns);
 
-  gdbarch_register_osabi (bfd_arch_i386, GDB_OSABI_NETBSD_AOUT,
+  gdbarch_register_osabi (bfd_arch_i386, 0, GDB_OSABI_NETBSD_AOUT,
                          i386nbsd_init_abi);
-  gdbarch_register_osabi (bfd_arch_i386, GDB_OSABI_NETBSD_ELF,
+  gdbarch_register_osabi (bfd_arch_i386, 0, GDB_OSABI_NETBSD_ELF,
                          i386nbsdelf_init_abi);
 }