From ee2842e23e1eff49719db239c67b4b2b843c5c90 Mon Sep 17 00:00:00 2001 From: Ian Lance Taylor Date: Fri, 16 May 2003 07:06:56 +0000 Subject: [PATCH] * vax-tdep.c (INVALID_FLOAT, MAXLEN, NOPCODES): Don't define. (vax_print_insn, print_insn_arg): Remove static functions. (vax_gdbarch_init): Call set_gdbarch_print_insn with print_insn_vax from opcodes library. (_initialize_vax_tdep): Don't set deprecated_tm_print_insn. --- gdb/ChangeLog | 8 ++ gdb/vax-tdep.c | 252 +-------------------------------------------------------- 2 files changed, 10 insertions(+), 250 deletions(-) diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 1011cc8..4f80600 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,11 @@ +2003-05-16 Ian Lance Taylor + + * vax-tdep.c (INVALID_FLOAT, MAXLEN, NOPCODES): Don't define. + (vax_print_insn, print_insn_arg): Remove static functions. + (vax_gdbarch_init): Call set_gdbarch_print_insn with + print_insn_vax from opcodes library. + (_initialize_vax_tdep): Don't set deprecated_tm_print_insn. + 2003-05-15 Andrew Cagney * arch-utils.h (legacy_breakpoint_from_pc): Delete declaration. diff --git a/gdb/vax-tdep.c b/gdb/vax-tdep.c index 54ca48d..2840b0c 100644 --- a/gdb/vax-tdep.c +++ b/gdb/vax-tdep.c @@ -50,32 +50,6 @@ static gdbarch_deprecated_extract_struct_value_address_ftype vax_extract_struct_value_address; static gdbarch_deprecated_push_dummy_frame_ftype vax_push_dummy_frame; - -/* Return 1 if P points to an invalid floating point value. - LEN is the length in bytes -- not relevant on the Vax. */ - -/* FIXME: cagney/2002-01-19: The macro below was originally defined in - tm-vax.h and used in values.c. Two problems. Firstly this is a - very non-portable and secondly it is wrong. The VAX should be - using floatformat and associated methods to identify and handle - invalid floating-point values. Adding to the poor target's woes - there is no floatformat_vax_{f,d} and no TARGET_FLOAT_FORMAT - et.al.. */ - -/* FIXME: cagney/2002-01-19: It turns out that the only thing that - uses this macro is the vax disassembler code (so how old is this - target?). This target should instead be using the opcodes - disassembler. That allowing the macro to be eliminated. */ - -#define INVALID_FLOAT(p, len) ((*(short *) p & 0xff80) == 0x8000) - -/* Vax instructions are never longer than this. */ -#define MAXLEN 62 - -/* Number of elements in the opcode table. */ -#define NOPCODES (sizeof votstrs / sizeof votstrs[0]) - -static unsigned char *print_insn_arg (); static const char * vax_register_name (int regno) @@ -373,228 +347,6 @@ vax_saved_pc_after_call (struct frame_info *frame) return (DEPRECATED_FRAME_SAVED_PC(frame)); } -/* Print the vax instruction at address MEMADDR in debugged memory, - from disassembler info INFO. - Returns length of the instruction, in bytes. */ - -static int -vax_print_insn (CORE_ADDR memaddr, disassemble_info *info) -{ - unsigned char buffer[MAXLEN]; - register int i; - register unsigned char *p; - const char *d; - - int status = (*info->read_memory_func) (memaddr, buffer, MAXLEN, info); - if (status != 0) - { - (*info->memory_error_func) (status, memaddr, info); - return -1; - } - - for (i = 0; i < NOPCODES; i++) - if (votstrs[i].detail.code == buffer[0] - || votstrs[i].detail.code == *(unsigned short *) buffer) - break; - - /* Handle undefined instructions. */ - if (i == NOPCODES) - { - (*info->fprintf_func) (info->stream, "0%o", buffer[0]); - return 1; - } - - (*info->fprintf_func) (info->stream, "%s", votstrs[i].name); - - /* Point at first byte of argument data, - and at descriptor for first argument. */ - p = buffer + 1 + (votstrs[i].detail.code >= 0x100); - d = votstrs[i].detail.args; - - if (*d) - (*info->fprintf_func) (info->stream, " "); - - while (*d) - { - p = print_insn_arg (d, p, memaddr + (p - buffer), info); - d += 2; - if (*d) - (*info->fprintf_func) (info->stream, ","); - } - return p - buffer; -} - -static unsigned char * -print_insn_arg (char *d, register char *p, CORE_ADDR addr, - disassemble_info *info) -{ - register int regnum = *p & 0xf; - float floatlitbuf; - - if (*d == 'b') - { - if (d[1] == 'b') - (*info->fprintf_func) (info->stream, "0x%x", addr + *p++ + 1); - else - { - (*info->fprintf_func) (info->stream, "0x%x", addr + *(short *) p + 2); - p += 2; - } - } - else - switch ((*p++ >> 4) & 0xf) - { - case 0: - case 1: - case 2: - case 3: /* Literal mode */ - if (d[1] == 'd' || d[1] == 'f' || d[1] == 'g' || d[1] == 'h') - { - *(int *) &floatlitbuf = 0x4000 + ((p[-1] & 0x3f) << 4); - (*info->fprintf_func) (info->stream, "$%f", floatlitbuf); - } - else - (*info->fprintf_func) (info->stream, "$%d", p[-1] & 0x3f); - break; - - case 4: /* Indexed */ - p = (char *) print_insn_arg (d, p, addr + 1, info); - (*info->fprintf_func) (info->stream, "[%s]", REGISTER_NAME (regnum)); - break; - - case 5: /* Register */ - (*info->fprintf_func) (info->stream, REGISTER_NAME (regnum)); - break; - - case 7: /* Autodecrement */ - (*info->fprintf_func) (info->stream, "-"); - case 6: /* Register deferred */ - (*info->fprintf_func) (info->stream, "(%s)", REGISTER_NAME (regnum)); - break; - - case 9: /* Autoincrement deferred */ - (*info->fprintf_func) (info->stream, "@"); - if (regnum == PC_REGNUM) - { - (*info->fprintf_func) (info->stream, "#"); - info->target = *(long *) p; - (*info->print_address_func) (info->target, info); - p += 4; - break; - } - case 8: /* Autoincrement */ - if (regnum == PC_REGNUM) - { - (*info->fprintf_func) (info->stream, "#"); - switch (d[1]) - { - case 'b': - (*info->fprintf_func) (info->stream, "%d", *p++); - break; - - case 'w': - (*info->fprintf_func) (info->stream, "%d", *(short *) p); - p += 2; - break; - - case 'l': - (*info->fprintf_func) (info->stream, "%d", *(long *) p); - p += 4; - break; - - case 'q': - (*info->fprintf_func) (info->stream, "0x%x%08x", - ((long *) p)[1], ((long *) p)[0]); - p += 8; - break; - - case 'o': - (*info->fprintf_func) (info->stream, "0x%x%08x%08x%08x", - ((long *) p)[3], ((long *) p)[2], - ((long *) p)[1], ((long *) p)[0]); - p += 16; - break; - - case 'f': - if (INVALID_FLOAT (p, 4)) - (*info->fprintf_func) (info->stream, - "<>", - *(int *) p); - else - (*info->fprintf_func) (info->stream, "%f", *(float *) p); - p += 4; - break; - - case 'd': - if (INVALID_FLOAT (p, 8)) - (*info->fprintf_func) (info->stream, - "<>", - ((long *) p)[1], ((long *) p)[0]); - else - (*info->fprintf_func) (info->stream, "%f", *(double *) p); - p += 8; - break; - - case 'g': - (*info->fprintf_func) (info->stream, "g-float"); - p += 8; - break; - - case 'h': - (*info->fprintf_func) (info->stream, "h-float"); - p += 16; - break; - - } - } - else - (*info->fprintf_func) (info->stream, "(%s)+", REGISTER_NAME (regnum)); - break; - - case 11: /* Byte displacement deferred */ - (*info->fprintf_func) (info->stream, "@"); - case 10: /* Byte displacement */ - if (regnum == PC_REGNUM) - { - info->target = addr + *p + 2; - (*info->print_address_func) (info->target, info); - } - else - (*info->fprintf_func) (info->stream, "%d(%s)", *p, REGISTER_NAME (regnum)); - p += 1; - break; - - case 13: /* Word displacement deferred */ - (*info->fprintf_func) (info->stream, "@"); - case 12: /* Word displacement */ - if (regnum == PC_REGNUM) - { - info->target = addr + *(short *) p + 3; - (*info->print_address_func) (info->target, info); - } - else - (*info->fprintf_func) (info->stream, "%d(%s)", - *(short *) p, REGISTER_NAME (regnum)); - p += 2; - break; - - case 15: /* Long displacement deferred */ - (*info->fprintf_func) (info->stream, "@"); - case 14: /* Long displacement */ - if (regnum == PC_REGNUM) - { - info->target = addr + *(short *) p + 5; - (*info->print_address_func) (info->target, info); - } - else - (*info->fprintf_func) (info->stream, "%d(%s)", - *(long *) p, REGISTER_NAME (regnum)); - p += 4; - } - - return (unsigned char *) p; -} - /* Initialize the current architecture based on INFO. If possible, re-use an architecture from ARCHES, which is a list of architectures already created during this debugging session. @@ -687,6 +439,8 @@ vax_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) /* Hook in ABI-specific overrides, if they have been registered. */ gdbarch_init_osabi (info, gdbarch); + set_gdbarch_print_insn (gdbarch, print_insn_vax); + return (gdbarch); } @@ -694,6 +448,4 @@ void _initialize_vax_tdep (void) { gdbarch_register (bfd_arch_vax, vax_gdbarch_init, NULL); - - deprecated_tm_print_insn = vax_print_insn; } -- 2.7.4