2004-01-17 Andrew Cagney <cagney@redhat.com>

	* gdbarch.sh (DECR_PC_AFTER_BREAK): Make zero the default.
	* gdbarch.c: Re-generate.
	* xstormy16-tdep.c (xstormy16_gdbarch_init): Do not set
	DECR_PC_AFTER_BREAK to zero.
	* vax-tdep.c (vax_gdbarch_init): Ditto.
	* v850-tdep.c (v850_gdbarch_init): Ditto.
	* sparc-tdep.c (sparc32_gdbarch_init): Ditto.
	* sh64-tdep.c (sh64_gdbarch_init): Ditto.
	* sh-tdep.c (sh_gdbarch_init): Ditto.
	* rs6000-tdep.c (rs6000_gdbarch_init): Ditto.
	* ns32k-tdep.c (ns32k_gdbarch_init): Ditto.
	* mn10300-tdep.c (mn10300_gdbarch_init): Ditto.
	* mips-tdep.c (mips_gdbarch_init): Ditto.
	* mcore-tdep.c (mcore_gdbarch_init): Ditto.
	* m68hc11-tdep.c (m68hc11_gdbarch_init): Ditto.
	* m32r-tdep.c (m32r_gdbarch_init): Ditto.
	* ia64-tdep.c (ia64_gdbarch_init): Ditto.
	* i386-interix-tdep.c (i386_interix_init_abi): Ditto.
	* hppa-tdep.c (hppa_gdbarch_init): Ditto.
	* h8300-tdep.c (h8300_gdbarch_init): Ditto.
	* frv-tdep.c (frv_gdbarch_init): Ditto.
	* cris-tdep.c (cris_gdbarch_init): Ditto.
	* avr-tdep.c (avr_gdbarch_init): Ditto.
	* arm-tdep.c (arm_gdbarch_init): Ditto.
	* i386-nto-tdep.c (i386nto_init_abi): Add comment.

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index f2316ff..c45438b 100644 (file)
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,31 @@
+2004-01-17  Andrew Cagney  <cagney@redhat.com>
+
+       * gdbarch.sh (DECR_PC_AFTER_BREAK): Make zero the default.
+       * gdbarch.c: Re-generate.
+       * xstormy16-tdep.c (xstormy16_gdbarch_init): Do not set
+       DECR_PC_AFTER_BREAK to zero.
+       * vax-tdep.c (vax_gdbarch_init): Ditto.
+       * v850-tdep.c (v850_gdbarch_init): Ditto.
+       * sparc-tdep.c (sparc32_gdbarch_init): Ditto.
+       * sh64-tdep.c (sh64_gdbarch_init): Ditto.
+       * sh-tdep.c (sh_gdbarch_init): Ditto.
+       * rs6000-tdep.c (rs6000_gdbarch_init): Ditto.
+       * ns32k-tdep.c (ns32k_gdbarch_init): Ditto.
+       * mn10300-tdep.c (mn10300_gdbarch_init): Ditto.
+       * mips-tdep.c (mips_gdbarch_init): Ditto.
+       * mcore-tdep.c (mcore_gdbarch_init): Ditto.
+       * m68hc11-tdep.c (m68hc11_gdbarch_init): Ditto.
+       * m32r-tdep.c (m32r_gdbarch_init): Ditto.
+       * ia64-tdep.c (ia64_gdbarch_init): Ditto.
+       * i386-interix-tdep.c (i386_interix_init_abi): Ditto.
+       * hppa-tdep.c (hppa_gdbarch_init): Ditto.
+       * h8300-tdep.c (h8300_gdbarch_init): Ditto.
+       * frv-tdep.c (frv_gdbarch_init): Ditto.
+       * cris-tdep.c (cris_gdbarch_init): Ditto.
+       * avr-tdep.c (avr_gdbarch_init): Ditto.
+       * arm-tdep.c (arm_gdbarch_init): Ditto.
+       * i386-nto-tdep.c (i386nto_init_abi): Add comment.
+
 2004-01-17  J. Brobecker  <brobecker@gnat.com>
 
        * dwarf2read.c (dwarf2_non_const_array_bound_ignored_complaint):

diff --git a/gdb/arm-tdep.c b/gdb/arm-tdep.c
index 9794141..1099a69 100644 (file)
--- a/gdb/arm-tdep.c
+++ b/gdb/arm-tdep.c
@@ -2877,7 +2877,6 @@ arm_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
 
   /* Breakpoint manipulation.  */
   set_gdbarch_breakpoint_from_pc (gdbarch, arm_breakpoint_from_pc);
-  set_gdbarch_decr_pc_after_break (gdbarch, 0);
 
   /* Information about registers, etc.  */
   set_gdbarch_print_float_info (gdbarch, arm_print_float_info);

diff --git a/gdb/avr-tdep.c b/gdb/avr-tdep.c
index f4fe631..b381adf 100644 (file)
--- a/gdb/avr-tdep.c
+++ b/gdb/avr-tdep.c
@@ -1319,7 +1319,6 @@ avr_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
   set_gdbarch_skip_prologue (gdbarch, avr_skip_prologue);
   set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
 
-  set_gdbarch_decr_pc_after_break (gdbarch, 0);
   set_gdbarch_breakpoint_from_pc (gdbarch, avr_breakpoint_from_pc);
 
   set_gdbarch_frame_args_skip (gdbarch, 0);

diff --git a/gdb/cris-tdep.c b/gdb/cris-tdep.c
index 05fe319..0b1005f 100644 (file)
--- a/gdb/cris-tdep.c
+++ b/gdb/cris-tdep.c
@@ -4281,10 +4281,6 @@ cris_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
 
   set_gdbarch_breakpoint_from_pc (gdbarch, cris_breakpoint_from_pc);
   
-  /* The PC must not be decremented after a breakpoint.  (The breakpoint
-     handler takes care of that.)  */
-  set_gdbarch_decr_pc_after_break (gdbarch, 0);
-  
   /* The number of bytes at the start of arglist that are not really args,
      0 in the CRIS ABI.  */
   set_gdbarch_frame_args_skip (gdbarch, 0);

diff --git a/gdb/frv-tdep.c b/gdb/frv-tdep.c
index 007d031..50a421c 100644 (file)
--- a/gdb/frv-tdep.c
+++ b/gdb/frv-tdep.c
@@ -1420,8 +1420,6 @@ frv_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
 
   set_gdbarch_write_pc (gdbarch, generic_target_write_pc);
 
-  set_gdbarch_decr_pc_after_break (gdbarch, 0);
-
   set_gdbarch_remote_translate_xfer_address
     (gdbarch, generic_remote_translate_xfer_address);
 

diff --git a/gdb/gdbarch.c b/gdb/gdbarch.c
index cb8bbb9..0acb14c 100644 (file)
--- a/gdb/gdbarch.c
+++ b/gdb/gdbarch.c
@@ -525,7 +525,6 @@ gdbarch_alloc (const struct gdbarch_info *info,
   current_gdbarch->prologue_frameless_p = generic_prologue_frameless_p;
   current_gdbarch->memory_insert_breakpoint = default_memory_insert_breakpoint;
   current_gdbarch->memory_remove_breakpoint = default_memory_remove_breakpoint;
-  current_gdbarch->decr_pc_after_break = -1;
   current_gdbarch->remote_translate_xfer_address = generic_remote_translate_xfer_address;
   current_gdbarch->frame_args_skip = -1;
   current_gdbarch->frameless_function_invocation = generic_frameless_function_invocation_not;
@@ -708,9 +707,7 @@ verify_gdbarch (struct gdbarch *current_gdbarch)
   /* Skip verify of adjust_breakpoint_address, has predicate */
   /* Skip verify of memory_insert_breakpoint, invalid_p == 0 */
   /* Skip verify of memory_remove_breakpoint, invalid_p == 0 */
-  if ((GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL)
-      && (current_gdbarch->decr_pc_after_break == -1))
-    fprintf_unfiltered (log, "\n\tdecr_pc_after_break");
+  /* Skip verify of decr_pc_after_break, invalid_p == 0 */
   /* Skip verify of function_start_offset, invalid_p == 0 */
   /* Skip verify of remote_translate_xfer_address, invalid_p == 0 */
   if ((GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL)
@@ -4623,8 +4620,7 @@ CORE_ADDR
 gdbarch_decr_pc_after_break (struct gdbarch *gdbarch)
 {
   gdb_assert (gdbarch != NULL);
-  /* Check variable changed from pre-default.  */
-  gdb_assert (gdbarch->decr_pc_after_break != -1);
+  /* Skip verify of decr_pc_after_break, invalid_p == 0 */
   if (gdbarch_debug >= 2)
     fprintf_unfiltered (gdb_stdlog, "gdbarch_decr_pc_after_break called\n");
   return gdbarch->decr_pc_after_break;

diff --git a/gdb/gdbarch.sh b/gdb/gdbarch.sh
index e5400b9..e35948e 100755 (executable)
--- a/gdb/gdbarch.sh
+++ b/gdb/gdbarch.sh
@@ -632,7 +632,7 @@ f::BREAKPOINT_FROM_PC:const unsigned char *:breakpoint_from_pc:CORE_ADDR *pcptr,
 M:2:ADJUST_BREAKPOINT_ADDRESS:CORE_ADDR:adjust_breakpoint_address:CORE_ADDR bpaddr:bpaddr
 f:2:MEMORY_INSERT_BREAKPOINT:int:memory_insert_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_insert_breakpoint::0
 f:2:MEMORY_REMOVE_BREAKPOINT:int:memory_remove_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_remove_breakpoint::0
-v:2:DECR_PC_AFTER_BREAK:CORE_ADDR:decr_pc_after_break::::0:-1
+v:2:DECR_PC_AFTER_BREAK:CORE_ADDR:decr_pc_after_break::::0:::0
 v:2:FUNCTION_START_OFFSET:CORE_ADDR:function_start_offset::::0:::0
 #
 m::REMOTE_TRANSLATE_XFER_ADDRESS:void:remote_translate_xfer_address:struct regcache *regcache, CORE_ADDR gdb_addr, int gdb_len, CORE_ADDR *rem_addr, int *rem_len:regcache, gdb_addr, gdb_len, rem_addr, rem_len:::generic_remote_translate_xfer_address::0

diff --git a/gdb/h8300-tdep.c b/gdb/h8300-tdep.c
index 150bac4..c87dfab 100644 (file)
--- a/gdb/h8300-tdep.c
+++ b/gdb/h8300-tdep.c
@@ -1323,9 +1323,6 @@ h8300_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
    */
   /* Stack grows up. */
   set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
-  /* PC stops zero byte after a trap instruction
-     (which means: exactly on trap instruction). */
-  set_gdbarch_decr_pc_after_break (gdbarch, 0);
   /* This value is almost never non-zero... */
   set_gdbarch_frame_args_skip (gdbarch, 0);
   set_gdbarch_frameless_function_invocation (gdbarch,

diff --git a/gdb/hppa-tdep.c b/gdb/hppa-tdep.c
index 33b3cb4..58ad55d 100644 (file)
--- a/gdb/hppa-tdep.c
+++ b/gdb/hppa-tdep.c
@@ -5196,7 +5196,6 @@ hppa_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
                                           hppa_in_solib_return_trampoline);
   set_gdbarch_deprecated_saved_pc_after_call (gdbarch, hppa_saved_pc_after_call);
   set_gdbarch_inner_than (gdbarch, hppa_inner_than);
-  set_gdbarch_decr_pc_after_break (gdbarch, 0);
   set_gdbarch_deprecated_register_size (gdbarch, tdep->bytes_per_address);
   set_gdbarch_deprecated_fp_regnum (gdbarch, 3);
   set_gdbarch_sp_regnum (gdbarch, 30);

diff --git a/gdb/i386-interix-tdep.c b/gdb/i386-interix-tdep.c
index ea9f8c4..0d2af2f 100644 (file)
--- a/gdb/i386-interix-tdep.c
+++ b/gdb/i386-interix-tdep.c
@@ -325,7 +325,6 @@ i386_interix_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
   tdep->struct_return = reg_struct_return;
   tdep->jb_pc_offset = jump_buffer_Eip_offset;
 
-  set_gdbarch_decr_pc_after_break (gdbarch, 0);
   set_gdbarch_pc_in_sigtramp (gdbarch, i386_interix_pc_in_sigtramp);
   set_gdbarch_in_solib_call_trampoline (gdbarch,
                                         i386_interix_in_solib_call_trampoline);

diff --git a/gdb/i386-nto-tdep.c b/gdb/i386-nto-tdep.c
index a80c7a4..4a1eaac 100644 (file)
--- a/gdb/i386-nto-tdep.c
+++ b/gdb/i386-nto-tdep.c
@@ -270,7 +270,8 @@ i386nto_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
   /* NTO uses ELF.  */
   i386_elf_init_abi (info, gdbarch);
 
-  /* Neutrino rewinds to look more normal.  */
+  /* Neutrino rewinds to look more normal.  Need to override the i386
+     default which is [unfortunatly] to decrement the PC.  */
   set_gdbarch_decr_pc_after_break (gdbarch, 0);
 
   /* NTO has shared libraries.  */

diff --git a/gdb/ia64-tdep.c b/gdb/ia64-tdep.c
index d31b05b..6b2dba6 100644 (file)
--- a/gdb/ia64-tdep.c
+++ b/gdb/ia64-tdep.c
@@ -3425,7 +3425,6 @@ ia64_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
   /* Settings that should be unnecessary.  */
   set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
 
-  set_gdbarch_decr_pc_after_break (gdbarch, 0);
   set_gdbarch_frame_args_skip (gdbarch, 0);
 
   set_gdbarch_remote_translate_xfer_address (

diff --git a/gdb/m32r-tdep.c b/gdb/m32r-tdep.c
index 86335d6..16ec1ff 100644 (file)
--- a/gdb/m32r-tdep.c
+++ b/gdb/m32r-tdep.c
@@ -945,7 +945,6 @@ m32r_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
 
   set_gdbarch_skip_prologue (gdbarch, m32r_skip_prologue);
   set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
-  set_gdbarch_decr_pc_after_break (gdbarch, 0);
   set_gdbarch_breakpoint_from_pc (gdbarch, m32r_breakpoint_from_pc);
   set_gdbarch_memory_insert_breakpoint (gdbarch,
                                        m32r_memory_insert_breakpoint);

diff --git a/gdb/m68hc11-tdep.c b/gdb/m68hc11-tdep.c
index fdf006f..c920ea6 100644 (file)
--- a/gdb/m68hc11-tdep.c
+++ b/gdb/m68hc11-tdep.c
@@ -1556,7 +1556,6 @@ m68hc11_gdbarch_init (struct gdbarch_info info,
   set_gdbarch_use_struct_convention (gdbarch, m68hc11_use_struct_convention);
   set_gdbarch_skip_prologue (gdbarch, m68hc11_skip_prologue);
   set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
-  set_gdbarch_decr_pc_after_break (gdbarch, 0);
   set_gdbarch_breakpoint_from_pc (gdbarch, m68hc11_breakpoint_from_pc);
   set_gdbarch_deprecated_stack_align (gdbarch, m68hc11_stack_align);
   set_gdbarch_print_insn (gdbarch, gdb_print_insn_m68hc11);

diff --git a/gdb/mcore-tdep.c b/gdb/mcore-tdep.c
index 863a8c3..5382f7e 100644 (file)
--- a/gdb/mcore-tdep.c
+++ b/gdb/mcore-tdep.c
@@ -1071,7 +1071,6 @@ mcore_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
   set_gdbarch_deprecated_sizeof_call_dummy_words (gdbarch, 0);
   set_gdbarch_deprecated_save_dummy_frame_tos (gdbarch, generic_save_dummy_frame_tos);
   set_gdbarch_deprecated_saved_pc_after_call (gdbarch, mcore_saved_pc_after_call);
-  set_gdbarch_decr_pc_after_break (gdbarch, 0);
   set_gdbarch_breakpoint_from_pc (gdbarch, mcore_breakpoint_from_pc);
   set_gdbarch_deprecated_push_return_address (gdbarch, mcore_push_return_address);
   set_gdbarch_deprecated_push_arguments (gdbarch, mcore_push_arguments);

diff --git a/gdb/mips-tdep.c b/gdb/mips-tdep.c
index a7d4af4..fa78a1a 100644 (file)
--- a/gdb/mips-tdep.c
+++ b/gdb/mips-tdep.c
@@ -6046,7 +6046,6 @@ mips_gdbarch_init (struct gdbarch_info info,
 
   set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
   set_gdbarch_breakpoint_from_pc (gdbarch, mips_breakpoint_from_pc);
-  set_gdbarch_decr_pc_after_break (gdbarch, 0);
 
   set_gdbarch_skip_prologue (gdbarch, mips_skip_prologue);
   set_gdbarch_deprecated_saved_pc_after_call (gdbarch, mips_saved_pc_after_call);

diff --git a/gdb/mn10300-tdep.c b/gdb/mn10300-tdep.c
index cd145ec..904a375 100644 (file)
--- a/gdb/mn10300-tdep.c
+++ b/gdb/mn10300-tdep.c
@@ -1173,7 +1173,6 @@ mn10300_gdbarch_init (struct gdbarch_info info,
 
   /* Breakpoints.  */
   set_gdbarch_breakpoint_from_pc (gdbarch, mn10300_breakpoint_from_pc);
-  set_gdbarch_decr_pc_after_break (gdbarch, 0);
 
   /* Stack unwinding.  */
   set_gdbarch_inner_than (gdbarch, core_addr_lessthan);

diff --git a/gdb/ns32k-tdep.c b/gdb/ns32k-tdep.c
index f42a7c5..b0a133c 100644 (file)
--- a/gdb/ns32k-tdep.c
+++ b/gdb/ns32k-tdep.c
@@ -598,7 +598,6 @@ ns32k_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
   set_gdbarch_deprecated_pc_in_call_dummy (gdbarch, deprecated_pc_in_call_dummy_on_stack);
 
   /* Breakpoint info */
-  set_gdbarch_decr_pc_after_break (gdbarch, 0);
   set_gdbarch_breakpoint_from_pc (gdbarch, ns32k_breakpoint_from_pc);
 
   /* Should be using push_dummy_call.  */

diff --git a/gdb/rs6000-tdep.c b/gdb/rs6000-tdep.c
index a1edf5a..57fe902 100644 (file)
--- a/gdb/rs6000-tdep.c
+++ b/gdb/rs6000-tdep.c
@@ -2897,7 +2897,6 @@ rs6000_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
 
   set_gdbarch_skip_prologue (gdbarch, rs6000_skip_prologue);
   set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
-  set_gdbarch_decr_pc_after_break (gdbarch, 0);
   set_gdbarch_breakpoint_from_pc (gdbarch, rs6000_breakpoint_from_pc);
 
   /* Handle the 64-bit SVR4 minimal-symbol convention of using "FN"

diff --git a/gdb/sh-tdep.c b/gdb/sh-tdep.c
index 7f1dad5..8c7408b 100644 (file)
--- a/gdb/sh-tdep.c
+++ b/gdb/sh-tdep.c
@@ -2244,7 +2244,6 @@ sh_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
 
   set_gdbarch_skip_prologue (gdbarch, sh_skip_prologue);
   set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
-  set_gdbarch_decr_pc_after_break (gdbarch, 0);
 
   set_gdbarch_push_dummy_call (gdbarch, sh_push_dummy_call_nofpu);
 

diff --git a/gdb/sh64-tdep.c b/gdb/sh64-tdep.c
index f871d1e..c78a137 100644 (file)
--- a/gdb/sh64-tdep.c
+++ b/gdb/sh64-tdep.c
@@ -2843,7 +2843,6 @@ sh64_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
 
   set_gdbarch_skip_prologue (gdbarch, sh_skip_prologue);
   set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
-  set_gdbarch_decr_pc_after_break (gdbarch, 0);
 
   set_gdbarch_frame_args_skip (gdbarch, 0);
   set_gdbarch_frameless_function_invocation (gdbarch, frameless_look_for_prologue);

diff --git a/gdb/sparc-tdep.c b/gdb/sparc-tdep.c
index 805f64e..1bcdeb8 100644 (file)
--- a/gdb/sparc-tdep.c
+++ b/gdb/sparc-tdep.c
@@ -1080,7 +1080,6 @@ sparc32_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
   set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
 
   set_gdbarch_breakpoint_from_pc (gdbarch, sparc_breakpoint_from_pc);
-  set_gdbarch_decr_pc_after_break (gdbarch, 0);
 
   set_gdbarch_frame_args_skip (gdbarch, 8);
 

diff --git a/gdb/v850-tdep.c b/gdb/v850-tdep.c
index e482038..44ea93b 100644 (file)
--- a/gdb/v850-tdep.c
+++ b/gdb/v850-tdep.c
@@ -1259,9 +1259,6 @@ v850_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
    */
   /* Stack grows up. */
   set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
-  /* PC stops zero byte after a trap instruction
-     (which means: exactly on trap instruction). */
-  set_gdbarch_decr_pc_after_break (gdbarch, 0);
   /* This value is almost never non-zero... */
   set_gdbarch_frame_args_skip (gdbarch, 0);
 

diff --git a/gdb/vax-tdep.c b/gdb/vax-tdep.c
index 5c99aa8..e7f6899 100644 (file)
--- a/gdb/vax-tdep.c
+++ b/gdb/vax-tdep.c
@@ -406,7 +406,6 @@ vax_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
 
   /* Breakpoint info */
   set_gdbarch_breakpoint_from_pc (gdbarch, vax_breakpoint_from_pc);
-  set_gdbarch_decr_pc_after_break (gdbarch, 0);
 
   /* Misc info */
   set_gdbarch_function_start_offset (gdbarch, 2);

diff --git a/gdb/xstormy16-tdep.c b/gdb/xstormy16-tdep.c
index c4925f0..00520a5 100644 (file)
--- a/gdb/xstormy16-tdep.c
+++ b/gdb/xstormy16-tdep.c
@@ -1069,9 +1069,6 @@ xstormy16_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
    */
   /* Stack grows up. */
   set_gdbarch_inner_than (gdbarch, core_addr_greaterthan);
-  /* PC stops zero byte after a trap instruction
-     (which means: exactly on trap instruction). */
-  set_gdbarch_decr_pc_after_break (gdbarch, 0);
   /* This value is almost never non-zero... */
   set_gdbarch_frame_args_skip (gdbarch, 0);