FreeChainXenon/binutils-gdb
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* config/vax/tm-vax.h (BREAKPOINT): Remove.

Browse source 
(BELIEVE_PCC_PROMOTION): Remove.
(AP_REGNUM): Move to...
* config/vax/nm-vax.h: ...here.
* vax-tdep.c: Use VAX_AP_REGNUM instead of AP_REGNUM.
(vax_breakpoint_from_pc): New function.
(vax_gdbarch_init): Initialize gdbarch_breakpoint_from_pc
and gdbarch_believe_pcc_promotion.
This commit is contained in:
Jason Thorpe 2002-06-26 17:20:36 +00:00
parent 6300c360ea
commit 1d049c5e1d
4 changed files with 30 additions and 14 deletions
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11
gdb/ChangeLog
View file

@ -1,3 +1,14 @@
2002-06-26 Jason Thorpe <thorpej@wasabisystems.com>
* config/vax/tm-vax.h (BREAKPOINT): Remove.
(BELIEVE_PCC_PROMOTION): Remove.
(AP_REGNUM): Move to...
* config/vax/nm-vax.h: ...here.
* vax-tdep.c: Use VAX_AP_REGNUM instead of AP_REGNUM.
(vax_breakpoint_from_pc): New function.
(vax_gdbarch_init): Initialize gdbarch_breakpoint_from_pc
and gdbarch_believe_pcc_promotion.
2002-06-26 Jason Thorpe <thorpej@wasabisystems.com>
* Makefile.in (vax_tdep_h): Define.

2
gdb/config/vax/nm-vax.h
View file

@ -18,6 +18,8 @@
Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#define AP_REGNUM 12 /* XXXJRT */
#define REGISTER_U_ADDR(addr, blockend, regno) \
{ addr = blockend - 0110 + regno * 4; \
if (regno == PC_REGNUM) addr = blockend - 8; \

8
gdb/config/vax/tm-vax.h
View file

@ -31,11 +31,6 @@
#define SIGTRAMP_START(pc) STACK_END_ADDR
#define SIGTRAMP_END(pc) 0x80000000
/* Sequence of bytes for breakpoint instruction. */
#define BREAKPOINT {3}
#define AP_REGNUM 12 /* XXXJRT */
/* Offset to saved PC in sigcontext, from <sys/signal.h>. */
/* XXXJRT should go away */
#define SIGCONTEXT_PC_OFFSET 12
@ -43,6 +38,3 @@
/* XXXJRT not yet under gdbarch control */
#define FRAME_ARGS_ADDRESS_CORRECT(fi) vax_frame_args_address_correct ((fi))
extern CORE_ADDR vax_frame_args_address_correct (struct frame_info *);
/* If vax pcc says CHAR or SHORT, it provides the correct address. */
#define BELIEVE_PCC_PROMOTION 1

23
gdb/vax-tdep.c
View file

@ -186,7 +186,7 @@ vax_frame_init_saved_regs (struct frame_info *frame)
/* regmask's low bit is for register 0, which is the first one
what would be pushed. */
for (regnum = 0; regnum < AP_REGNUM; regnum++)
for (regnum = 0; regnum < VAX_AP_REGNUM; regnum++)
{
if (regmask & (1 << regnum))
frame->saved_regs[regnum] = next_addr += 4;
@ -199,7 +199,7 @@ vax_frame_init_saved_regs (struct frame_info *frame)
frame->saved_regs[PC_REGNUM] = frame->frame + 16;
frame->saved_regs[FP_REGNUM] = frame->frame + 12;
frame->saved_regs[AP_REGNUM] = frame->frame + 8;
frame->saved_regs[VAX_AP_REGNUM] = frame->frame + 8;
frame->saved_regs[PS_REGNUM] = frame->frame + 4;
}
@ -239,7 +239,7 @@ vax_frame_args_address (struct frame_info *frame)
if (frame->next)
return (read_memory_integer (frame->next->frame + 8, 4));
return (read_register (AP_REGNUM));
return (read_register (VAX_AP_REGNUM));
}
static CORE_ADDR
@ -276,12 +276,12 @@ vax_push_dummy_frame (void)
sp = push_word (sp, read_register (regnum));
sp = push_word (sp, read_register (PC_REGNUM));
sp = push_word (sp, read_register (FP_REGNUM));
sp = push_word (sp, read_register (AP_REGNUM));
sp = push_word (sp, read_register (VAX_AP_REGNUM));
sp = push_word (sp, (read_register (PS_REGNUM) & 0xffef) + 0x2fff0000);
sp = push_word (sp, 0);
write_register (SP_REGNUM, sp);
write_register (FP_REGNUM, sp);
write_register (AP_REGNUM, sp + (17 * 4));
write_register (VAX_AP_REGNUM, sp + (17 * 4));
}
static void
@ -296,7 +296,7 @@ vax_pop_frame (void)
| (read_register (PS_REGNUM) & 0xffff0000));
write_register (PC_REGNUM, read_memory_integer (fp + 16, 4));
write_register (FP_REGNUM, read_memory_integer (fp + 12, 4));
write_register (AP_REGNUM, read_memory_integer (fp + 8, 4));
write_register (VAX_AP_REGNUM, read_memory_integer (fp + 8, 4));
fp += 16;
for (regnum = 0; regnum < 12; regnum++)
if (regmask & (0x10000 << regnum))
@ -353,6 +353,15 @@ vax_extract_struct_value_address (char *regbuf)
return (extract_address (regbuf + REGISTER_BYTE (0), REGISTER_RAW_SIZE (0)));
}
static const unsigned char *
vax_breakpoint_from_pc (CORE_ADDR *pcptr, int *lenptr)
{
static const unsigned char vax_breakpoint[] = { 3 };
*lenptr = sizeof(vax_breakpoint);
return (vax_breakpoint);
}
/* Advance PC across any function entry prologue instructions
to reach some "real" code. */
@ -708,10 +717,12 @@ vax_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
set_gdbarch_call_dummy_stack_adjust_p (gdbarch, 0);
/* 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);
set_gdbarch_believe_pcc_promotion (gdbarch, 1);
/* Hook in ABI-specific overrides, if they have been registered. */
gdbarch_init_osabi (info, gdbarch, osabi);