1991-03-29 00:28:29 +08:00
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/* Target-machine dependent code for the Intel 960
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General cleanup and simplication of disassembler interface.
* a29k-pinsn.c, arm-pinsn.c, convex-pinsn.c, gould-pinsn.c,
hppa-pinsn.c, i386-pinsn.c, i960-pinsn.c, m68k-pinsn.c,
m88k-pinsn.c, mips-pinsn.c, ns32k-pinsn.c, pyr-pinsn.c,
rs6000-pinsn.c, sparc-pinsn.c, tahoe-pinsn.c, vax-pinsn.c: Remove.
* gould-tdep.c, ns32k-tdep.c, tahoe-tdep.c, vax-tdep.c: New files,
had been -pinsn.c files.
* Makefile.in (ALLDEPFILES): Remove removed files.
(a29k-pinsn.o, arm-pinsn.o, convex-pinsn.o, gould-pinsn.o,
hppa-pinsn.o, i386-pinsn.o, i960-pinsn.o, m68k-pinsn.o,
m88k-pinsn.o, mips-pinsn.o, ns32k-pinsn.o, pyr-pinsn.o,
rs6000-pinsn.o, sparc-pinsn.o, tahoe-pinsn.o, vax-pinsn.o):
Remove compile actions.
* arm-tdep.o, gould-tdep.o, ns32k-tdep.o, tahoe-tdep.o,
vax-tdep.o: Add compile actions.
* defs.h (tm_print_insn): New global.
* a29k-tdep.c (gdb_print_insn_a29k): New function.
(_initialize_a29k_tdep): Rename from _initialize_29k,
set tm_print_insn.
* alpha-tdep.c (print_insn): Remove.
(_initialize_alpha_tdep): Set tm_print_insn.
* arm-tdep.c (arm_print_insn): New function, was print_insn
in arm-pinsn.c.
* convex-tdep.c (convex_print_insn): New function, was print_insn
in convex-pinsn.c.
* h8300-tdep.c (print_insn): Remove.
(gdb_print_insn_h8300): New function.
(_initialize_h8300_tdep): New function.
* h8500-tdep.c (print_insn): Remove.
(_initialize_h8500_tdep): New function.
* hppa-tdep.c (_initialize_hppa_tdep): Set tm_print_insn.
* i386-tdep.c (_initialize_i386_tdep): New function.
* i960-tdep.c (mem, next_insn): New functions, were in
i960-pinsn.c.
(_initialize_i960_tdep): Set tm_print_insn.
* m68k-tdep.c (_initialize_m68k_tdep): New function.
* m88k-tdep.c (_initialize_m88k_tdep): New function.
* mips-tdep.c (gdb_print_insn_mips): New function.
(_initialize_mips_tdep): Set tm_print_insn.
* pyr-tdep.c (pyr_print_insn): New function, was print_insn
in pyr-pinsn.c.
* rs6000-tdep.c (_initialize_rs6000_tdep): New function.
* sh-tdep.c (print_insn): Remove.
(gdb_print_insn_sh): New function.
(_initialize_sh_tdep): Set tm_print_insn.
* sparc-tdep.c (_initialize_sparc_tdep): New function.
* w65-tdep.c (print_insn): Remove.
(_initialize_w65_tdep): New function.
* z8k-tdep.c (print_insn): Remove.
(gdb_print_insn_z8k): New function.
(_initialize_z8k_tdep): Set tm_print_insn.
* printcmd.c (print_insn): New function, generic disassembler.
* config/*/*.mt (TDEPFILES): Remove refs to *-pinsn.o.
* defs.h (query_hook, error_hook): Fix prototypes.
1995-01-17 12:36:51 +08:00
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Copyright 1991, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
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1991-03-29 00:28:29 +08:00
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Contributed by Intel Corporation.
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examine_prologue and other parts contributed by Wind River Systems.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
|
1991-06-04 16:31:55 +09:00
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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1991-03-29 00:28:29 +08:00
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
|
1991-06-04 16:31:55 +09:00
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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1991-03-29 00:28:29 +08:00
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#include "defs.h"
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#include "symtab.h"
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#include "value.h"
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#include "frame.h"
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1994-02-28 14:06:05 +08:00
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#include "floatformat.h"
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1994-01-15 10:56:47 +08:00
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#include "target.h"
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1991-03-29 00:28:29 +08:00
|
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|
|
General cleanup and simplication of disassembler interface.
* a29k-pinsn.c, arm-pinsn.c, convex-pinsn.c, gould-pinsn.c,
hppa-pinsn.c, i386-pinsn.c, i960-pinsn.c, m68k-pinsn.c,
m88k-pinsn.c, mips-pinsn.c, ns32k-pinsn.c, pyr-pinsn.c,
rs6000-pinsn.c, sparc-pinsn.c, tahoe-pinsn.c, vax-pinsn.c: Remove.
* gould-tdep.c, ns32k-tdep.c, tahoe-tdep.c, vax-tdep.c: New files,
had been -pinsn.c files.
* Makefile.in (ALLDEPFILES): Remove removed files.
(a29k-pinsn.o, arm-pinsn.o, convex-pinsn.o, gould-pinsn.o,
hppa-pinsn.o, i386-pinsn.o, i960-pinsn.o, m68k-pinsn.o,
m88k-pinsn.o, mips-pinsn.o, ns32k-pinsn.o, pyr-pinsn.o,
rs6000-pinsn.o, sparc-pinsn.o, tahoe-pinsn.o, vax-pinsn.o):
Remove compile actions.
* arm-tdep.o, gould-tdep.o, ns32k-tdep.o, tahoe-tdep.o,
vax-tdep.o: Add compile actions.
* defs.h (tm_print_insn): New global.
* a29k-tdep.c (gdb_print_insn_a29k): New function.
(_initialize_a29k_tdep): Rename from _initialize_29k,
set tm_print_insn.
* alpha-tdep.c (print_insn): Remove.
(_initialize_alpha_tdep): Set tm_print_insn.
* arm-tdep.c (arm_print_insn): New function, was print_insn
in arm-pinsn.c.
* convex-tdep.c (convex_print_insn): New function, was print_insn
in convex-pinsn.c.
* h8300-tdep.c (print_insn): Remove.
(gdb_print_insn_h8300): New function.
(_initialize_h8300_tdep): New function.
* h8500-tdep.c (print_insn): Remove.
(_initialize_h8500_tdep): New function.
* hppa-tdep.c (_initialize_hppa_tdep): Set tm_print_insn.
* i386-tdep.c (_initialize_i386_tdep): New function.
* i960-tdep.c (mem, next_insn): New functions, were in
i960-pinsn.c.
(_initialize_i960_tdep): Set tm_print_insn.
* m68k-tdep.c (_initialize_m68k_tdep): New function.
* m88k-tdep.c (_initialize_m88k_tdep): New function.
* mips-tdep.c (gdb_print_insn_mips): New function.
(_initialize_mips_tdep): Set tm_print_insn.
* pyr-tdep.c (pyr_print_insn): New function, was print_insn
in pyr-pinsn.c.
* rs6000-tdep.c (_initialize_rs6000_tdep): New function.
* sh-tdep.c (print_insn): Remove.
(gdb_print_insn_sh): New function.
(_initialize_sh_tdep): Set tm_print_insn.
* sparc-tdep.c (_initialize_sparc_tdep): New function.
* w65-tdep.c (print_insn): Remove.
(_initialize_w65_tdep): New function.
* z8k-tdep.c (print_insn): Remove.
(gdb_print_insn_z8k): New function.
(_initialize_z8k_tdep): Set tm_print_insn.
* printcmd.c (print_insn): New function, generic disassembler.
* config/*/*.mt (TDEPFILES): Remove refs to *-pinsn.o.
* defs.h (query_hook, error_hook): Fix prototypes.
1995-01-17 12:36:51 +08:00
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static CORE_ADDR next_insn PARAMS ((CORE_ADDR memaddr,
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unsigned long *pword1,
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unsigned long *pword2));
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1991-03-29 00:28:29 +08:00
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/* gdb960 is always running on a non-960 host. Check its characteristics.
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This routine must be called as part of gdb initialization. */
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static void
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check_host()
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{
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int i;
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static struct typestruct {
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int hostsize; /* Size of type on host */
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int i960size; /* Size of type on i960 */
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char *typename; /* Name of type, for error msg */
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} types[] = {
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{ sizeof(short), 2, "short" },
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{ sizeof(int), 4, "int" },
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{ sizeof(long), 4, "long" },
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{ sizeof(float), 4, "float" },
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{ sizeof(double), 8, "double" },
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{ sizeof(char *), 4, "pointer" },
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};
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#define TYPELEN (sizeof(types) / sizeof(struct typestruct))
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/* Make sure that host type sizes are same as i960
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*/
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for ( i = 0; i < TYPELEN; i++ ){
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if ( types[i].hostsize != types[i].i960size ){
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1993-11-02 06:25:23 +08:00
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printf_unfiltered("sizeof(%s) != %d: PROCEED AT YOUR OWN RISK!\n",
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1991-03-29 00:28:29 +08:00
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types[i].typename, types[i].i960size );
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}
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}
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}
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/* Examine an i960 function prologue, recording the addresses at which
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registers are saved explicitly by the prologue code, and returning
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the address of the first instruction after the prologue (but not
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after the instruction at address LIMIT, as explained below).
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LIMIT places an upper bound on addresses of the instructions to be
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examined. If the prologue code scan reaches LIMIT, the scan is
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aborted and LIMIT is returned. This is used, when examining the
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prologue for the current frame, to keep examine_prologue () from
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claiming that a given register has been saved when in fact the
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instruction that saves it has not yet been executed. LIMIT is used
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at other times to stop the scan when we hit code after the true
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function prologue (e.g. for the first source line) which might
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otherwise be mistaken for function prologue.
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The format of the function prologue matched by this routine is
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derived from examination of the source to gcc960 1.21, particularly
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the routine i960_function_prologue (). A "regular expression" for
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the function prologue is given below:
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(lda LRn, g14
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mov g14, g[0-7]
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(mov 0, g14) | (lda 0, g14))?
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(mov[qtl]? g[0-15], r[4-15])*
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((addo [1-31], sp, sp) | (lda n(sp), sp))?
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(st[qtl]? g[0-15], n(fp))*
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(cmpobne 0, g14, LFn
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mov sp, g14
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lda 0x30(sp), sp
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LFn: stq g0, (g14)
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stq g4, 0x10(g14)
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stq g8, 0x20(g14))?
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(st g14, n(fp))?
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(mov g13,r[4-15])?
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*/
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/* Macros for extracting fields from i960 instructions. */
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#define BITMASK(pos, width) (((0x1 << (width)) - 1) << (pos))
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#define EXTRACT_FIELD(val, pos, width) ((val) >> (pos) & BITMASK (0, width))
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#define REG_SRC1(insn) EXTRACT_FIELD (insn, 0, 5)
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#define REG_SRC2(insn) EXTRACT_FIELD (insn, 14, 5)
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#define REG_SRCDST(insn) EXTRACT_FIELD (insn, 19, 5)
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#define MEM_SRCDST(insn) EXTRACT_FIELD (insn, 19, 5)
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#define MEMA_OFFSET(insn) EXTRACT_FIELD (insn, 0, 12)
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/* Fetch the instruction at ADDR, returning 0 if ADDR is beyond LIM or
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is not the address of a valid instruction, the address of the next
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instruction beyond ADDR otherwise. *PWORD1 receives the first word
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of the instruction, and (for two-word instructions), *PWORD2 receives
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the second. */
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#define NEXT_PROLOGUE_INSN(addr, lim, pword1, pword2) \
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(((addr) < (lim)) ? next_insn (addr, pword1, pword2) : 0)
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static CORE_ADDR
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examine_prologue (ip, limit, frame_addr, fsr)
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register CORE_ADDR ip;
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register CORE_ADDR limit;
|
Replace useless FRAME, FRAME_ADDR types with struct frame_info *
and CORE_ADDR, respectively.
* frame.h (FRAME, FRAME_INFO_ID, FRAME_ADDR): Remove.
* blockframe.c (get_frame_info): Remove.
* a29k-tdep.c, alpha-tdep.c, blockframe.c, breakpoint.c,
breakpoint.h, energize.c, findvar.c, gdbtk.c, gould-pinsn.c,
h8300-tdep.c, h8500-tdep.c, hppa-tdep.c, i386-tdep.c, i960-tdep.c,
infcmd.c, inferior.h, infrun.c, m68k-tdep.c, m88k-tdep.c,
mips-tdep.c, nindy-tdep.c, printcmd.c, pyr-tdep.c, rs6000-tdep.c,
sh-tdep.c, sparc-tdep.c, stack.c, valops.c, z8k-tdep.c,
config/a29k/tm-a29k.h, config/alpha/tm-alpha.h,
config/gould/tm-pn.h, config/h8300/tm-h8300.h,
config/h8500/tm-h8500.h, config/mips/tm-mips.h,
config/ns32k/tm-merlin.h, config/ns32k/tm-umax.h,
config/pyr/tm-pyr.h, config/sparc/tm-sparc.h): Replace FRAME with
struct frame_info * everywhere, replace FRAME_ADDR with CORE_ADDR,
rename variables consistently (using `frame' or `fi'), remove
calls to get_frame_info and FRAME_INFO_ID, remove comments about
FRAME and FRAME_ADDR cruftiness.
1994-11-04 09:19:29 +08:00
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CORE_ADDR frame_addr;
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1991-03-29 00:28:29 +08:00
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struct frame_saved_regs *fsr;
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{
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register CORE_ADDR next_ip;
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register int src, dst;
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register unsigned int *pcode;
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unsigned int insn1, insn2;
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int size;
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int within_leaf_prologue;
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CORE_ADDR save_addr;
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static unsigned int varargs_prologue_code [] =
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{
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0x3507a00c, /* cmpobne 0x0, g14, LFn */
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0x5cf01601, /* mov sp, g14 */
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0x8c086030, /* lda 0x30(sp), sp */
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0xb2879000, /* LFn: stq g0, (g14) */
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0xb2a7a010, /* stq g4, 0x10(g14) */
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0xb2c7a020 /* stq g8, 0x20(g14) */
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};
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/* Accept a leaf procedure prologue code fragment if present.
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Note that ip might point to either the leaf or non-leaf
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entry point; we look for the non-leaf entry point first: */
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within_leaf_prologue = 0;
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if ((next_ip = NEXT_PROLOGUE_INSN (ip, limit, &insn1, &insn2))
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&& ((insn1 & 0xfffff000) == 0x8cf00000 /* lda LRx, g14 (MEMA) */
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|| (insn1 & 0xfffffc60) == 0x8cf03000)) /* lda LRx, g14 (MEMB) */
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{
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within_leaf_prologue = 1;
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next_ip = NEXT_PROLOGUE_INSN (next_ip, limit, &insn1, &insn2);
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}
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/* Now look for the prologue code at a leaf entry point: */
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if (next_ip
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&& (insn1 & 0xff87ffff) == 0x5c80161e /* mov g14, gx */
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&& REG_SRCDST (insn1) <= G0_REGNUM + 7)
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{
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within_leaf_prologue = 1;
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if ((next_ip = NEXT_PROLOGUE_INSN (next_ip, limit, &insn1, &insn2))
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&& (insn1 == 0x8cf00000 /* lda 0, g14 */
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|| insn1 == 0x5cf01e00)) /* mov 0, g14 */
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{
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ip = next_ip;
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next_ip = NEXT_PROLOGUE_INSN (ip, limit, &insn1, &insn2);
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within_leaf_prologue = 0;
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}
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}
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/* If something that looks like the beginning of a leaf prologue
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has been seen, but the remainder of the prologue is missing, bail.
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We don't know what we've got. */
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if (within_leaf_prologue)
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return (ip);
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/* Accept zero or more instances of "mov[qtl]? gx, ry", where y >= 4.
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This may cause us to mistake the moving of a register
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|
|
parameter to a local register for the saving of a callee-saved
|
|
|
|
|
register, but that can't be helped, since with the
|
|
|
|
|
"-fcall-saved" flag, any register can be made callee-saved. */
|
|
|
|
|
|
|
|
|
|
while (next_ip
|
|
|
|
|
&& (insn1 & 0xfc802fb0) == 0x5c000610
|
|
|
|
|
&& (dst = REG_SRCDST (insn1)) >= (R0_REGNUM + 4))
|
|
|
|
|
{
|
|
|
|
|
src = REG_SRC1 (insn1);
|
|
|
|
|
size = EXTRACT_FIELD (insn1, 24, 2) + 1;
|
|
|
|
|
save_addr = frame_addr + ((dst - R0_REGNUM) * 4);
|
|
|
|
|
while (size--)
|
|
|
|
|
{
|
|
|
|
|
fsr->regs[src++] = save_addr;
|
|
|
|
|
save_addr += 4;
|
|
|
|
|
}
|
|
|
|
|
ip = next_ip;
|
|
|
|
|
next_ip = NEXT_PROLOGUE_INSN (ip, limit, &insn1, &insn2);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Accept an optional "addo n, sp, sp" or "lda n(sp), sp". */
|
|
|
|
|
|
|
|
|
|
if (next_ip &&
|
|
|
|
|
((insn1 & 0xffffffe0) == 0x59084800 /* addo n, sp, sp */
|
|
|
|
|
|| (insn1 & 0xfffff000) == 0x8c086000 /* lda n(sp), sp (MEMA) */
|
|
|
|
|
|| (insn1 & 0xfffffc60) == 0x8c087400)) /* lda n(sp), sp (MEMB) */
|
|
|
|
|
{
|
|
|
|
|
ip = next_ip;
|
|
|
|
|
next_ip = NEXT_PROLOGUE_INSN (ip, limit, &insn1, &insn2);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Accept zero or more instances of "st[qtl]? gx, n(fp)".
|
|
|
|
|
This may cause us to mistake the copying of a register
|
|
|
|
|
parameter to the frame for the saving of a callee-saved
|
|
|
|
|
register, but that can't be helped, since with the
|
|
|
|
|
"-fcall-saved" flag, any register can be made callee-saved.
|
|
|
|
|
We can, however, refuse to accept a save of register g14,
|
|
|
|
|
since that is matched explicitly below. */
|
|
|
|
|
|
|
|
|
|
while (next_ip &&
|
|
|
|
|
((insn1 & 0xf787f000) == 0x9287e000 /* stl? gx, n(fp) (MEMA) */
|
|
|
|
|
|| (insn1 & 0xf787fc60) == 0x9287f400 /* stl? gx, n(fp) (MEMB) */
|
|
|
|
|
|| (insn1 & 0xef87f000) == 0xa287e000 /* st[tq] gx, n(fp) (MEMA) */
|
|
|
|
|
|| (insn1 & 0xef87fc60) == 0xa287f400) /* st[tq] gx, n(fp) (MEMB) */
|
|
|
|
|
&& ((src = MEM_SRCDST (insn1)) != G14_REGNUM))
|
|
|
|
|
{
|
|
|
|
|
save_addr = frame_addr + ((insn1 & BITMASK (12, 1))
|
|
|
|
|
? insn2 : MEMA_OFFSET (insn1));
|
|
|
|
|
size = (insn1 & BITMASK (29, 1)) ? ((insn1 & BITMASK (28, 1)) ? 4 : 3)
|
|
|
|
|
: ((insn1 & BITMASK (27, 1)) ? 2 : 1);
|
|
|
|
|
while (size--)
|
|
|
|
|
{
|
|
|
|
|
fsr->regs[src++] = save_addr;
|
|
|
|
|
save_addr += 4;
|
|
|
|
|
}
|
|
|
|
|
ip = next_ip;
|
|
|
|
|
next_ip = NEXT_PROLOGUE_INSN (ip, limit, &insn1, &insn2);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Accept the varargs prologue code if present. */
|
|
|
|
|
|
|
|
|
|
size = sizeof (varargs_prologue_code) / sizeof (int);
|
|
|
|
|
pcode = varargs_prologue_code;
|
|
|
|
|
while (size-- && next_ip && *pcode++ == insn1)
|
|
|
|
|
{
|
|
|
|
|
ip = next_ip;
|
|
|
|
|
next_ip = NEXT_PROLOGUE_INSN (ip, limit, &insn1, &insn2);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Accept an optional "st g14, n(fp)". */
|
|
|
|
|
|
|
|
|
|
if (next_ip &&
|
|
|
|
|
((insn1 & 0xfffff000) == 0x92f7e000 /* st g14, n(fp) (MEMA) */
|
|
|
|
|
|| (insn1 & 0xfffffc60) == 0x92f7f400)) /* st g14, n(fp) (MEMB) */
|
|
|
|
|
{
|
|
|
|
|
fsr->regs[G14_REGNUM] = frame_addr + ((insn1 & BITMASK (12, 1))
|
|
|
|
|
? insn2 : MEMA_OFFSET (insn1));
|
|
|
|
|
ip = next_ip;
|
|
|
|
|
next_ip = NEXT_PROLOGUE_INSN (ip, limit, &insn1, &insn2);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Accept zero or one instance of "mov g13, ry", where y >= 4.
|
|
|
|
|
This is saving the address where a struct should be returned. */
|
|
|
|
|
|
|
|
|
|
if (next_ip
|
|
|
|
|
&& (insn1 & 0xff802fbf) == 0x5c00061d
|
|
|
|
|
&& (dst = REG_SRCDST (insn1)) >= (R0_REGNUM + 4))
|
|
|
|
|
{
|
|
|
|
|
save_addr = frame_addr + ((dst - R0_REGNUM) * 4);
|
|
|
|
|
fsr->regs[G0_REGNUM+13] = save_addr;
|
|
|
|
|
ip = next_ip;
|
|
|
|
|
#if 0 /* We'll need this once there is a subsequent instruction examined. */
|
|
|
|
|
next_ip = NEXT_PROLOGUE_INSN (ip, limit, &insn1, &insn2);
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return (ip);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Given an ip value corresponding to the start of a function,
|
|
|
|
|
return the ip of the first instruction after the function
|
|
|
|
|
prologue. */
|
|
|
|
|
|
|
|
|
|
CORE_ADDR
|
|
|
|
|
skip_prologue (ip)
|
|
|
|
|
CORE_ADDR (ip);
|
|
|
|
|
{
|
|
|
|
|
struct frame_saved_regs saved_regs_dummy;
|
|
|
|
|
struct symtab_and_line sal;
|
|
|
|
|
CORE_ADDR limit;
|
|
|
|
|
|
|
|
|
|
sal = find_pc_line (ip, 0);
|
|
|
|
|
limit = (sal.end) ? sal.end : 0xffffffff;
|
|
|
|
|
|
Replace useless FRAME, FRAME_ADDR types with struct frame_info *
and CORE_ADDR, respectively.
* frame.h (FRAME, FRAME_INFO_ID, FRAME_ADDR): Remove.
* blockframe.c (get_frame_info): Remove.
* a29k-tdep.c, alpha-tdep.c, blockframe.c, breakpoint.c,
breakpoint.h, energize.c, findvar.c, gdbtk.c, gould-pinsn.c,
h8300-tdep.c, h8500-tdep.c, hppa-tdep.c, i386-tdep.c, i960-tdep.c,
infcmd.c, inferior.h, infrun.c, m68k-tdep.c, m88k-tdep.c,
mips-tdep.c, nindy-tdep.c, printcmd.c, pyr-tdep.c, rs6000-tdep.c,
sh-tdep.c, sparc-tdep.c, stack.c, valops.c, z8k-tdep.c,
config/a29k/tm-a29k.h, config/alpha/tm-alpha.h,
config/gould/tm-pn.h, config/h8300/tm-h8300.h,
config/h8500/tm-h8500.h, config/mips/tm-mips.h,
config/ns32k/tm-merlin.h, config/ns32k/tm-umax.h,
config/pyr/tm-pyr.h, config/sparc/tm-sparc.h): Replace FRAME with
struct frame_info * everywhere, replace FRAME_ADDR with CORE_ADDR,
rename variables consistently (using `frame' or `fi'), remove
calls to get_frame_info and FRAME_INFO_ID, remove comments about
FRAME and FRAME_ADDR cruftiness.
1994-11-04 09:19:29 +08:00
|
|
|
|
return (examine_prologue (ip, limit, (CORE_ADDR) 0, &saved_regs_dummy));
|
1991-03-29 00:28:29 +08:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Put here the code to store, into a struct frame_saved_regs,
|
|
|
|
|
the addresses of the saved registers of frame described by FRAME_INFO.
|
|
|
|
|
This includes special registers such as pc and fp saved in special
|
|
|
|
|
ways in the stack frame. sp is even more special:
|
|
|
|
|
the address we return for it IS the sp for the next frame.
|
|
|
|
|
|
|
|
|
|
We cache the result of doing this in the frame_cache_obstack, since
|
|
|
|
|
it is fairly expensive. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
frame_find_saved_regs (fi, fsr)
|
|
|
|
|
struct frame_info *fi;
|
|
|
|
|
struct frame_saved_regs *fsr;
|
|
|
|
|
{
|
|
|
|
|
register CORE_ADDR next_addr;
|
|
|
|
|
register CORE_ADDR *saved_regs;
|
|
|
|
|
register int regnum;
|
|
|
|
|
register struct frame_saved_regs *cache_fsr;
|
|
|
|
|
extern struct obstack frame_cache_obstack;
|
|
|
|
|
CORE_ADDR ip;
|
|
|
|
|
struct symtab_and_line sal;
|
|
|
|
|
CORE_ADDR limit;
|
|
|
|
|
|
|
|
|
|
if (!fi->fsr)
|
|
|
|
|
{
|
|
|
|
|
cache_fsr = (struct frame_saved_regs *)
|
|
|
|
|
obstack_alloc (&frame_cache_obstack,
|
|
|
|
|
sizeof (struct frame_saved_regs));
|
1993-09-02 05:56:42 +08:00
|
|
|
|
memset (cache_fsr, '\0', sizeof (struct frame_saved_regs));
|
1991-03-29 00:28:29 +08:00
|
|
|
|
fi->fsr = cache_fsr;
|
|
|
|
|
|
|
|
|
|
/* Find the start and end of the function prologue. If the PC
|
|
|
|
|
is in the function prologue, we only consider the part that
|
|
|
|
|
has executed already. */
|
|
|
|
|
|
|
|
|
|
ip = get_pc_function_start (fi->pc);
|
|
|
|
|
sal = find_pc_line (ip, 0);
|
|
|
|
|
limit = (sal.end && sal.end < fi->pc) ? sal.end: fi->pc;
|
|
|
|
|
|
|
|
|
|
examine_prologue (ip, limit, fi->frame, cache_fsr);
|
|
|
|
|
|
|
|
|
|
/* Record the addresses at which the local registers are saved.
|
|
|
|
|
Strictly speaking, we should only do this for non-leaf procedures,
|
|
|
|
|
but no one will ever look at these values if it is a leaf procedure,
|
|
|
|
|
since local registers are always caller-saved. */
|
|
|
|
|
|
|
|
|
|
next_addr = (CORE_ADDR) fi->frame;
|
|
|
|
|
saved_regs = cache_fsr->regs;
|
|
|
|
|
for (regnum = R0_REGNUM; regnum <= R15_REGNUM; regnum++)
|
|
|
|
|
{
|
|
|
|
|
*saved_regs++ = next_addr;
|
|
|
|
|
next_addr += 4;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
cache_fsr->regs[FP_REGNUM] = cache_fsr->regs[PFP_REGNUM];
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
*fsr = *fi->fsr;
|
|
|
|
|
|
|
|
|
|
/* Fetch the value of the sp from memory every time, since it
|
|
|
|
|
is conceivable that it has changed since the cache was flushed.
|
|
|
|
|
This unfortunately undoes much of the savings from caching the
|
|
|
|
|
saved register values. I suggest adding an argument to
|
|
|
|
|
get_frame_saved_regs () specifying the register number we're
|
|
|
|
|
interested in (or -1 for all registers). This would be passed
|
|
|
|
|
through to FRAME_FIND_SAVED_REGS (), permitting more efficient
|
|
|
|
|
computation of saved register addresses (e.g., on the i960,
|
|
|
|
|
we don't have to examine the prologue to find local registers).
|
|
|
|
|
-- markf@wrs.com
|
|
|
|
|
FIXME, we don't need to refetch this, since the cache is cleared
|
|
|
|
|
every time the child process is restarted. If GDB itself
|
|
|
|
|
modifies SP, it has to clear the cache by hand (does it?). -gnu */
|
|
|
|
|
|
|
|
|
|
fsr->regs[SP_REGNUM] = read_memory_integer (fsr->regs[SP_REGNUM], 4);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Return the address of the argument block for the frame
|
|
|
|
|
described by FI. Returns 0 if the address is unknown. */
|
|
|
|
|
|
|
|
|
|
CORE_ADDR
|
|
|
|
|
frame_args_address (fi, must_be_correct)
|
|
|
|
|
struct frame_info *fi;
|
|
|
|
|
{
|
|
|
|
|
struct frame_saved_regs fsr;
|
|
|
|
|
CORE_ADDR ap;
|
|
|
|
|
|
|
|
|
|
/* If g14 was saved in the frame by the function prologue code, return
|
|
|
|
|
the saved value. If the frame is current and we are being sloppy,
|
|
|
|
|
return the value of g14. Otherwise, return zero. */
|
|
|
|
|
|
|
|
|
|
get_frame_saved_regs (fi, &fsr);
|
|
|
|
|
if (fsr.regs[G14_REGNUM])
|
|
|
|
|
ap = read_memory_integer (fsr.regs[G14_REGNUM],4);
|
Replace useless FRAME, FRAME_ADDR types with struct frame_info *
and CORE_ADDR, respectively.
* frame.h (FRAME, FRAME_INFO_ID, FRAME_ADDR): Remove.
* blockframe.c (get_frame_info): Remove.
* a29k-tdep.c, alpha-tdep.c, blockframe.c, breakpoint.c,
breakpoint.h, energize.c, findvar.c, gdbtk.c, gould-pinsn.c,
h8300-tdep.c, h8500-tdep.c, hppa-tdep.c, i386-tdep.c, i960-tdep.c,
infcmd.c, inferior.h, infrun.c, m68k-tdep.c, m88k-tdep.c,
mips-tdep.c, nindy-tdep.c, printcmd.c, pyr-tdep.c, rs6000-tdep.c,
sh-tdep.c, sparc-tdep.c, stack.c, valops.c, z8k-tdep.c,
config/a29k/tm-a29k.h, config/alpha/tm-alpha.h,
config/gould/tm-pn.h, config/h8300/tm-h8300.h,
config/h8500/tm-h8500.h, config/mips/tm-mips.h,
config/ns32k/tm-merlin.h, config/ns32k/tm-umax.h,
config/pyr/tm-pyr.h, config/sparc/tm-sparc.h): Replace FRAME with
struct frame_info * everywhere, replace FRAME_ADDR with CORE_ADDR,
rename variables consistently (using `frame' or `fi'), remove
calls to get_frame_info and FRAME_INFO_ID, remove comments about
FRAME and FRAME_ADDR cruftiness.
1994-11-04 09:19:29 +08:00
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
if (must_be_correct)
|
|
|
|
|
return 0; /* Don't cache this result */
|
|
|
|
|
if (get_next_frame (fi))
|
|
|
|
|
ap = 0;
|
|
|
|
|
else
|
|
|
|
|
ap = read_register (G14_REGNUM);
|
|
|
|
|
if (ap == 0)
|
|
|
|
|
ap = fi->frame;
|
|
|
|
|
}
|
1991-03-29 00:28:29 +08:00
|
|
|
|
fi->arg_pointer = ap; /* Cache it for next time */
|
|
|
|
|
return ap;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Return the address of the return struct for the frame
|
|
|
|
|
described by FI. Returns 0 if the address is unknown. */
|
|
|
|
|
|
|
|
|
|
CORE_ADDR
|
|
|
|
|
frame_struct_result_address (fi)
|
|
|
|
|
struct frame_info *fi;
|
|
|
|
|
{
|
|
|
|
|
struct frame_saved_regs fsr;
|
|
|
|
|
CORE_ADDR ap;
|
|
|
|
|
|
|
|
|
|
/* If the frame is non-current, check to see if g14 was saved in the
|
|
|
|
|
frame by the function prologue code; return the saved value if so,
|
|
|
|
|
zero otherwise. If the frame is current, return the value of g14.
|
|
|
|
|
|
|
|
|
|
FIXME, shouldn't this use the saved value as long as we are past
|
|
|
|
|
the function prologue, and only use the current value if we have
|
|
|
|
|
no saved value and are at TOS? -- gnu@cygnus.com */
|
|
|
|
|
|
Replace useless FRAME, FRAME_ADDR types with struct frame_info *
and CORE_ADDR, respectively.
* frame.h (FRAME, FRAME_INFO_ID, FRAME_ADDR): Remove.
* blockframe.c (get_frame_info): Remove.
* a29k-tdep.c, alpha-tdep.c, blockframe.c, breakpoint.c,
breakpoint.h, energize.c, findvar.c, gdbtk.c, gould-pinsn.c,
h8300-tdep.c, h8500-tdep.c, hppa-tdep.c, i386-tdep.c, i960-tdep.c,
infcmd.c, inferior.h, infrun.c, m68k-tdep.c, m88k-tdep.c,
mips-tdep.c, nindy-tdep.c, printcmd.c, pyr-tdep.c, rs6000-tdep.c,
sh-tdep.c, sparc-tdep.c, stack.c, valops.c, z8k-tdep.c,
config/a29k/tm-a29k.h, config/alpha/tm-alpha.h,
config/gould/tm-pn.h, config/h8300/tm-h8300.h,
config/h8500/tm-h8500.h, config/mips/tm-mips.h,
config/ns32k/tm-merlin.h, config/ns32k/tm-umax.h,
config/pyr/tm-pyr.h, config/sparc/tm-sparc.h): Replace FRAME with
struct frame_info * everywhere, replace FRAME_ADDR with CORE_ADDR,
rename variables consistently (using `frame' or `fi'), remove
calls to get_frame_info and FRAME_INFO_ID, remove comments about
FRAME and FRAME_ADDR cruftiness.
1994-11-04 09:19:29 +08:00
|
|
|
|
if (get_next_frame (fi))
|
|
|
|
|
{
|
|
|
|
|
get_frame_saved_regs (fi, &fsr);
|
|
|
|
|
if (fsr.regs[G13_REGNUM])
|
|
|
|
|
ap = read_memory_integer (fsr.regs[G13_REGNUM],4);
|
|
|
|
|
else
|
|
|
|
|
ap = 0;
|
|
|
|
|
}
|
|
|
|
|
else
|
1991-03-29 00:28:29 +08:00
|
|
|
|
ap = read_register (G13_REGNUM);
|
Replace useless FRAME, FRAME_ADDR types with struct frame_info *
and CORE_ADDR, respectively.
* frame.h (FRAME, FRAME_INFO_ID, FRAME_ADDR): Remove.
* blockframe.c (get_frame_info): Remove.
* a29k-tdep.c, alpha-tdep.c, blockframe.c, breakpoint.c,
breakpoint.h, energize.c, findvar.c, gdbtk.c, gould-pinsn.c,
h8300-tdep.c, h8500-tdep.c, hppa-tdep.c, i386-tdep.c, i960-tdep.c,
infcmd.c, inferior.h, infrun.c, m68k-tdep.c, m88k-tdep.c,
mips-tdep.c, nindy-tdep.c, printcmd.c, pyr-tdep.c, rs6000-tdep.c,
sh-tdep.c, sparc-tdep.c, stack.c, valops.c, z8k-tdep.c,
config/a29k/tm-a29k.h, config/alpha/tm-alpha.h,
config/gould/tm-pn.h, config/h8300/tm-h8300.h,
config/h8500/tm-h8500.h, config/mips/tm-mips.h,
config/ns32k/tm-merlin.h, config/ns32k/tm-umax.h,
config/pyr/tm-pyr.h, config/sparc/tm-sparc.h): Replace FRAME with
struct frame_info * everywhere, replace FRAME_ADDR with CORE_ADDR,
rename variables consistently (using `frame' or `fi'), remove
calls to get_frame_info and FRAME_INFO_ID, remove comments about
FRAME and FRAME_ADDR cruftiness.
1994-11-04 09:19:29 +08:00
|
|
|
|
|
1991-03-29 00:28:29 +08:00
|
|
|
|
return ap;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Return address to which the currently executing leafproc will return,
|
|
|
|
|
or 0 if ip is not in a leafproc (or if we can't tell if it is).
|
|
|
|
|
|
|
|
|
|
Do this by finding the starting address of the routine in which ip lies.
|
|
|
|
|
If the instruction there is "mov g14, gx" (where x is in [0,7]), this
|
|
|
|
|
is a leafproc and the return address is in register gx. Well, this is
|
|
|
|
|
true unless the return address points at a RET instruction in the current
|
|
|
|
|
procedure, which indicates that we have a 'dual entry' routine that
|
|
|
|
|
has been entered through the CALL entry point. */
|
|
|
|
|
|
|
|
|
|
CORE_ADDR
|
|
|
|
|
leafproc_return (ip)
|
|
|
|
|
CORE_ADDR ip; /* ip from currently executing function */
|
|
|
|
|
{
|
1992-02-22 09:46:16 +08:00
|
|
|
|
register struct minimal_symbol *msymbol;
|
1991-03-29 00:28:29 +08:00
|
|
|
|
char *p;
|
|
|
|
|
int dst;
|
|
|
|
|
unsigned int insn1, insn2;
|
|
|
|
|
CORE_ADDR return_addr;
|
|
|
|
|
|
1992-02-22 09:46:16 +08:00
|
|
|
|
if ((msymbol = lookup_minimal_symbol_by_pc (ip)) != NULL)
|
1991-03-29 00:28:29 +08:00
|
|
|
|
{
|
1993-09-02 06:24:34 +08:00
|
|
|
|
if ((p = strchr(SYMBOL_NAME (msymbol), '.')) && STREQ (p, ".lf"))
|
1991-03-29 00:28:29 +08:00
|
|
|
|
{
|
* defs.h (HOST_CHAR_BIT): New macro, defaults to either CHAR_BIT
from a configuration file (typically including <limits.h>), or to
TARGET_CHAR_BIT if CHAR_BIT is not defined.
* eval.c (evaluate_subexp): Use new BYTES_TO_EXP_ELEM macro.
* eval.c (evaluate_subexp): Add case for OP_BITSTRING.
* expprint.c (print_subexp): Use new BYTES_TO_EXP_ELEM macro.
* exppritn.c (print_subexp, dump_expression): Add case for
OP_BITSTRING.
* expression.h (OP_BITSTRING): New expression element type for
packed bitstrings.
* expression.h (EXP_ELEM_TO_BYTES, BYTES_TO_EXP_ELEM): New
macros to convert between number of expression elements and bytes
to store that many elements.
* i960-tdep.c (leafproc_return): Use new macros to access
minimal symbol name and address fields.
* m88k-pinsn.c (sprint_address): Use new macros to access
minimal symbol name and address fields.
* nindy-tdep.c (nindy_frame_chain_valid): Use new macro to access
minimal symbol address field.
* parse.c (write_exp_elt, write_exp_string, prefixify_expression,
parse_exp_1): Use new EXP_ELEM_TO_BYTES macro.
* parse.c (write_exp_string, length_of_subexp, prefixify_expression):
Use new BYTES_TO_EXP_ELEM macro.
* parse.c (write_exp_bitstring): New function to write packed
bitstrings into the expression element vector.
* parse.c (length_of_subexp, prefixify_subexp): Add case for
OP_BITSTRING.
* parser-defs.h (struct stoken): Document that it is used for
OP_BITSTRING as well as OP_STRING.
* parser-defs.h (write_exp_bitstring): Add prototype.
**** start-sanitize-chill ****
* ch-exp.y (BIT_STRING_LITERAL): Change token type to sval.
* ch-exp.y (NUM, PRED, SUCC, ABS, CARD, MAX, MIN, SIZE, UPPER,
LOWER, LENGTH): New tokens for keywords.
* ch-exp.y (chill_value_built_in_routine_call, mode_argument,
upper_lower_argument, length_argument, array_mode_name,
string_mode_name, variant_structure_mode_name): New non-terminals
and productions.
* ch-exp.y (literal): Useful production for BIT_STRING_LITERAL.
* ch-exp.y (match_bitstring_literal): New lexer support function
to recognize bitstring literals.
* ch-exp.y (tokentab6): New token table for 6 character keywords.
* ch-exp.y (tokentab5): Add LOWER, UPPER.
* ch-exp.y (tokentab4): Add PRED, SUCC, CARD, SIZE.
* ch-exp.y (tokentab3): Add NUM, ABS, MIN, MAX.
* ch-exp.y (yylex): Check tokentab6.
* ch-exp.y (yylex): Call match_bitstring_literal.
**** end-sanitize-chill ****
1993-01-07 00:52:10 +08:00
|
|
|
|
if (next_insn (SYMBOL_VALUE_ADDRESS (msymbol), &insn1, &insn2)
|
1991-03-29 00:28:29 +08:00
|
|
|
|
&& (insn1 & 0xff87ffff) == 0x5c80161e /* mov g14, gx */
|
|
|
|
|
&& (dst = REG_SRCDST (insn1)) <= G0_REGNUM + 7)
|
|
|
|
|
{
|
|
|
|
|
/* Get the return address. If the "mov g14, gx"
|
|
|
|
|
instruction hasn't been executed yet, read
|
|
|
|
|
the return address from g14; otherwise, read it
|
|
|
|
|
from the register into which g14 was moved. */
|
|
|
|
|
|
* defs.h (HOST_CHAR_BIT): New macro, defaults to either CHAR_BIT
from a configuration file (typically including <limits.h>), or to
TARGET_CHAR_BIT if CHAR_BIT is not defined.
* eval.c (evaluate_subexp): Use new BYTES_TO_EXP_ELEM macro.
* eval.c (evaluate_subexp): Add case for OP_BITSTRING.
* expprint.c (print_subexp): Use new BYTES_TO_EXP_ELEM macro.
* exppritn.c (print_subexp, dump_expression): Add case for
OP_BITSTRING.
* expression.h (OP_BITSTRING): New expression element type for
packed bitstrings.
* expression.h (EXP_ELEM_TO_BYTES, BYTES_TO_EXP_ELEM): New
macros to convert between number of expression elements and bytes
to store that many elements.
* i960-tdep.c (leafproc_return): Use new macros to access
minimal symbol name and address fields.
* m88k-pinsn.c (sprint_address): Use new macros to access
minimal symbol name and address fields.
* nindy-tdep.c (nindy_frame_chain_valid): Use new macro to access
minimal symbol address field.
* parse.c (write_exp_elt, write_exp_string, prefixify_expression,
parse_exp_1): Use new EXP_ELEM_TO_BYTES macro.
* parse.c (write_exp_string, length_of_subexp, prefixify_expression):
Use new BYTES_TO_EXP_ELEM macro.
* parse.c (write_exp_bitstring): New function to write packed
bitstrings into the expression element vector.
* parse.c (length_of_subexp, prefixify_subexp): Add case for
OP_BITSTRING.
* parser-defs.h (struct stoken): Document that it is used for
OP_BITSTRING as well as OP_STRING.
* parser-defs.h (write_exp_bitstring): Add prototype.
**** start-sanitize-chill ****
* ch-exp.y (BIT_STRING_LITERAL): Change token type to sval.
* ch-exp.y (NUM, PRED, SUCC, ABS, CARD, MAX, MIN, SIZE, UPPER,
LOWER, LENGTH): New tokens for keywords.
* ch-exp.y (chill_value_built_in_routine_call, mode_argument,
upper_lower_argument, length_argument, array_mode_name,
string_mode_name, variant_structure_mode_name): New non-terminals
and productions.
* ch-exp.y (literal): Useful production for BIT_STRING_LITERAL.
* ch-exp.y (match_bitstring_literal): New lexer support function
to recognize bitstring literals.
* ch-exp.y (tokentab6): New token table for 6 character keywords.
* ch-exp.y (tokentab5): Add LOWER, UPPER.
* ch-exp.y (tokentab4): Add PRED, SUCC, CARD, SIZE.
* ch-exp.y (tokentab3): Add NUM, ABS, MIN, MAX.
* ch-exp.y (yylex): Check tokentab6.
* ch-exp.y (yylex): Call match_bitstring_literal.
**** end-sanitize-chill ****
1993-01-07 00:52:10 +08:00
|
|
|
|
return_addr =
|
|
|
|
|
read_register ((ip == SYMBOL_VALUE_ADDRESS (msymbol))
|
1991-03-29 00:28:29 +08:00
|
|
|
|
? G14_REGNUM : dst);
|
|
|
|
|
|
|
|
|
|
/* We know we are in a leaf procedure, but we don't know
|
|
|
|
|
whether the caller actually did a "bal" to the ".lf"
|
|
|
|
|
entry point, or a normal "call" to the non-leaf entry
|
|
|
|
|
point one instruction before. In the latter case, the
|
|
|
|
|
return address will be the address of a "ret"
|
|
|
|
|
instruction within the procedure itself. We test for
|
|
|
|
|
this below. */
|
|
|
|
|
|
|
|
|
|
if (!next_insn (return_addr, &insn1, &insn2)
|
|
|
|
|
|| (insn1 & 0xff000000) != 0xa000000 /* ret */
|
1992-02-22 09:46:16 +08:00
|
|
|
|
|| lookup_minimal_symbol_by_pc (return_addr) != msymbol)
|
1991-03-29 00:28:29 +08:00
|
|
|
|
return (return_addr);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return (0);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Immediately after a function call, return the saved pc.
|
|
|
|
|
Can't go through the frames for this because on some machines
|
|
|
|
|
the new frame is not set up until the new function executes
|
|
|
|
|
some instructions.
|
|
|
|
|
On the i960, the frame *is* set up immediately after the call,
|
|
|
|
|
unless the function is a leaf procedure. */
|
|
|
|
|
|
|
|
|
|
CORE_ADDR
|
|
|
|
|
saved_pc_after_call (frame)
|
Replace useless FRAME, FRAME_ADDR types with struct frame_info *
and CORE_ADDR, respectively.
* frame.h (FRAME, FRAME_INFO_ID, FRAME_ADDR): Remove.
* blockframe.c (get_frame_info): Remove.
* a29k-tdep.c, alpha-tdep.c, blockframe.c, breakpoint.c,
breakpoint.h, energize.c, findvar.c, gdbtk.c, gould-pinsn.c,
h8300-tdep.c, h8500-tdep.c, hppa-tdep.c, i386-tdep.c, i960-tdep.c,
infcmd.c, inferior.h, infrun.c, m68k-tdep.c, m88k-tdep.c,
mips-tdep.c, nindy-tdep.c, printcmd.c, pyr-tdep.c, rs6000-tdep.c,
sh-tdep.c, sparc-tdep.c, stack.c, valops.c, z8k-tdep.c,
config/a29k/tm-a29k.h, config/alpha/tm-alpha.h,
config/gould/tm-pn.h, config/h8300/tm-h8300.h,
config/h8500/tm-h8500.h, config/mips/tm-mips.h,
config/ns32k/tm-merlin.h, config/ns32k/tm-umax.h,
config/pyr/tm-pyr.h, config/sparc/tm-sparc.h): Replace FRAME with
struct frame_info * everywhere, replace FRAME_ADDR with CORE_ADDR,
rename variables consistently (using `frame' or `fi'), remove
calls to get_frame_info and FRAME_INFO_ID, remove comments about
FRAME and FRAME_ADDR cruftiness.
1994-11-04 09:19:29 +08:00
|
|
|
|
struct frame_info *frame;
|
1991-03-29 00:28:29 +08:00
|
|
|
|
{
|
|
|
|
|
CORE_ADDR saved_pc;
|
|
|
|
|
|
|
|
|
|
saved_pc = leafproc_return (get_frame_pc (frame));
|
|
|
|
|
if (!saved_pc)
|
|
|
|
|
saved_pc = FRAME_SAVED_PC (frame);
|
|
|
|
|
|
Replace useless FRAME, FRAME_ADDR types with struct frame_info *
and CORE_ADDR, respectively.
* frame.h (FRAME, FRAME_INFO_ID, FRAME_ADDR): Remove.
* blockframe.c (get_frame_info): Remove.
* a29k-tdep.c, alpha-tdep.c, blockframe.c, breakpoint.c,
breakpoint.h, energize.c, findvar.c, gdbtk.c, gould-pinsn.c,
h8300-tdep.c, h8500-tdep.c, hppa-tdep.c, i386-tdep.c, i960-tdep.c,
infcmd.c, inferior.h, infrun.c, m68k-tdep.c, m88k-tdep.c,
mips-tdep.c, nindy-tdep.c, printcmd.c, pyr-tdep.c, rs6000-tdep.c,
sh-tdep.c, sparc-tdep.c, stack.c, valops.c, z8k-tdep.c,
config/a29k/tm-a29k.h, config/alpha/tm-alpha.h,
config/gould/tm-pn.h, config/h8300/tm-h8300.h,
config/h8500/tm-h8500.h, config/mips/tm-mips.h,
config/ns32k/tm-merlin.h, config/ns32k/tm-umax.h,
config/pyr/tm-pyr.h, config/sparc/tm-sparc.h): Replace FRAME with
struct frame_info * everywhere, replace FRAME_ADDR with CORE_ADDR,
rename variables consistently (using `frame' or `fi'), remove
calls to get_frame_info and FRAME_INFO_ID, remove comments about
FRAME and FRAME_ADDR cruftiness.
1994-11-04 09:19:29 +08:00
|
|
|
|
return saved_pc;
|
1991-03-29 00:28:29 +08:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Discard from the stack the innermost frame,
|
|
|
|
|
restoring all saved registers. */
|
|
|
|
|
|
|
|
|
|
pop_frame ()
|
|
|
|
|
{
|
|
|
|
|
register struct frame_info *current_fi, *prev_fi;
|
|
|
|
|
register int i;
|
|
|
|
|
CORE_ADDR save_addr;
|
|
|
|
|
CORE_ADDR leaf_return_addr;
|
|
|
|
|
struct frame_saved_regs fsr;
|
|
|
|
|
char local_regs_buf[16 * 4];
|
|
|
|
|
|
Replace useless FRAME, FRAME_ADDR types with struct frame_info *
and CORE_ADDR, respectively.
* frame.h (FRAME, FRAME_INFO_ID, FRAME_ADDR): Remove.
* blockframe.c (get_frame_info): Remove.
* a29k-tdep.c, alpha-tdep.c, blockframe.c, breakpoint.c,
breakpoint.h, energize.c, findvar.c, gdbtk.c, gould-pinsn.c,
h8300-tdep.c, h8500-tdep.c, hppa-tdep.c, i386-tdep.c, i960-tdep.c,
infcmd.c, inferior.h, infrun.c, m68k-tdep.c, m88k-tdep.c,
mips-tdep.c, nindy-tdep.c, printcmd.c, pyr-tdep.c, rs6000-tdep.c,
sh-tdep.c, sparc-tdep.c, stack.c, valops.c, z8k-tdep.c,
config/a29k/tm-a29k.h, config/alpha/tm-alpha.h,
config/gould/tm-pn.h, config/h8300/tm-h8300.h,
config/h8500/tm-h8500.h, config/mips/tm-mips.h,
config/ns32k/tm-merlin.h, config/ns32k/tm-umax.h,
config/pyr/tm-pyr.h, config/sparc/tm-sparc.h): Replace FRAME with
struct frame_info * everywhere, replace FRAME_ADDR with CORE_ADDR,
rename variables consistently (using `frame' or `fi'), remove
calls to get_frame_info and FRAME_INFO_ID, remove comments about
FRAME and FRAME_ADDR cruftiness.
1994-11-04 09:19:29 +08:00
|
|
|
|
current_fi = get_current_frame ();
|
1991-03-29 00:28:29 +08:00
|
|
|
|
|
|
|
|
|
/* First, undo what the hardware does when we return.
|
|
|
|
|
If this is a non-leaf procedure, restore local registers from
|
|
|
|
|
the save area in the calling frame. Otherwise, load the return
|
|
|
|
|
address obtained from leafproc_return () into the rip. */
|
|
|
|
|
|
|
|
|
|
leaf_return_addr = leafproc_return (current_fi->pc);
|
|
|
|
|
if (!leaf_return_addr)
|
|
|
|
|
{
|
|
|
|
|
/* Non-leaf procedure. Restore local registers, incl IP. */
|
Replace useless FRAME, FRAME_ADDR types with struct frame_info *
and CORE_ADDR, respectively.
* frame.h (FRAME, FRAME_INFO_ID, FRAME_ADDR): Remove.
* blockframe.c (get_frame_info): Remove.
* a29k-tdep.c, alpha-tdep.c, blockframe.c, breakpoint.c,
breakpoint.h, energize.c, findvar.c, gdbtk.c, gould-pinsn.c,
h8300-tdep.c, h8500-tdep.c, hppa-tdep.c, i386-tdep.c, i960-tdep.c,
infcmd.c, inferior.h, infrun.c, m68k-tdep.c, m88k-tdep.c,
mips-tdep.c, nindy-tdep.c, printcmd.c, pyr-tdep.c, rs6000-tdep.c,
sh-tdep.c, sparc-tdep.c, stack.c, valops.c, z8k-tdep.c,
config/a29k/tm-a29k.h, config/alpha/tm-alpha.h,
config/gould/tm-pn.h, config/h8300/tm-h8300.h,
config/h8500/tm-h8500.h, config/mips/tm-mips.h,
config/ns32k/tm-merlin.h, config/ns32k/tm-umax.h,
config/pyr/tm-pyr.h, config/sparc/tm-sparc.h): Replace FRAME with
struct frame_info * everywhere, replace FRAME_ADDR with CORE_ADDR,
rename variables consistently (using `frame' or `fi'), remove
calls to get_frame_info and FRAME_INFO_ID, remove comments about
FRAME and FRAME_ADDR cruftiness.
1994-11-04 09:19:29 +08:00
|
|
|
|
prev_fi = get_prev_frame (current_fi);
|
1991-03-29 00:28:29 +08:00
|
|
|
|
read_memory (prev_fi->frame, local_regs_buf, sizeof (local_regs_buf));
|
|
|
|
|
write_register_bytes (REGISTER_BYTE (R0_REGNUM), local_regs_buf,
|
|
|
|
|
sizeof (local_regs_buf));
|
|
|
|
|
|
|
|
|
|
/* Restore frame pointer. */
|
|
|
|
|
write_register (FP_REGNUM, prev_fi->frame);
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
/* Leaf procedure. Just restore the return address into the IP. */
|
|
|
|
|
write_register (RIP_REGNUM, leaf_return_addr);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Now restore any global regs that the current function had saved. */
|
|
|
|
|
get_frame_saved_regs (current_fi, &fsr);
|
|
|
|
|
for (i = G0_REGNUM; i < G14_REGNUM; i++)
|
|
|
|
|
{
|
|
|
|
|
if (save_addr = fsr.regs[i])
|
|
|
|
|
write_register (i, read_memory_integer (save_addr, 4));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Flush the frame cache, create a frame for the new innermost frame,
|
|
|
|
|
and make it the current frame. */
|
|
|
|
|
|
|
|
|
|
flush_cached_frames ();
|
|
|
|
|
}
|
|
|
|
|
|
* target.h: Add enum target_waitkind, enum target_signal, and
struct target_waitstatus. Change status argument to target_wait to
be struct target_waitstatus * instead of int *.
* target.h, infrun.c, all targets: Change type of signal arguments
to resume(), proceed(), and target_resume() from int to enum
target_signal.
* All targets (*_wait, *_resume): Change accordingly.
* infcmd.c (program_info, signal_command), throughout infrun.c,
* fork-child.c, solib.c, hppa-tdep.c, osfsolib.c: Use this stuff.
* convex-xdep.c, convex-tdep.c: Add FIXME's (getting the Convex
signal code stuff right with the new signals would be non-trivial).
* inferior.h (stop_signal): Make it enum target_signal not int.
* target.c, target.h (target_signal_to_string, target_signal_to_name,
target_signal_from_name): New functions.
* inftarg.c, target.h (target_signal_to_host, target_signal_from_host,
store_waitstatus): New functions.
* procfs.c (procfs_notice_signals): Use them.
* i960-tdep.c (i960_fault_to_signal): New function, to replace
print_fault.
* config/i960/tm-i960.h: Don't define PRINT_RANDOM_SIGNAL.
1994-01-05 05:53:53 +08:00
|
|
|
|
/* Given a 960 stop code (fault or trace), return the signal which
|
|
|
|
|
corresponds. */
|
1991-03-29 00:28:29 +08:00
|
|
|
|
|
* target.h: Add enum target_waitkind, enum target_signal, and
struct target_waitstatus. Change status argument to target_wait to
be struct target_waitstatus * instead of int *.
* target.h, infrun.c, all targets: Change type of signal arguments
to resume(), proceed(), and target_resume() from int to enum
target_signal.
* All targets (*_wait, *_resume): Change accordingly.
* infcmd.c (program_info, signal_command), throughout infrun.c,
* fork-child.c, solib.c, hppa-tdep.c, osfsolib.c: Use this stuff.
* convex-xdep.c, convex-tdep.c: Add FIXME's (getting the Convex
signal code stuff right with the new signals would be non-trivial).
* inferior.h (stop_signal): Make it enum target_signal not int.
* target.c, target.h (target_signal_to_string, target_signal_to_name,
target_signal_from_name): New functions.
* inftarg.c, target.h (target_signal_to_host, target_signal_from_host,
store_waitstatus): New functions.
* procfs.c (procfs_notice_signals): Use them.
* i960-tdep.c (i960_fault_to_signal): New function, to replace
print_fault.
* config/i960/tm-i960.h: Don't define PRINT_RANDOM_SIGNAL.
1994-01-05 05:53:53 +08:00
|
|
|
|
enum target_signal
|
|
|
|
|
i960_fault_to_signal (fault)
|
|
|
|
|
int fault;
|
1991-03-29 00:28:29 +08:00
|
|
|
|
{
|
* target.h: Add enum target_waitkind, enum target_signal, and
struct target_waitstatus. Change status argument to target_wait to
be struct target_waitstatus * instead of int *.
* target.h, infrun.c, all targets: Change type of signal arguments
to resume(), proceed(), and target_resume() from int to enum
target_signal.
* All targets (*_wait, *_resume): Change accordingly.
* infcmd.c (program_info, signal_command), throughout infrun.c,
* fork-child.c, solib.c, hppa-tdep.c, osfsolib.c: Use this stuff.
* convex-xdep.c, convex-tdep.c: Add FIXME's (getting the Convex
signal code stuff right with the new signals would be non-trivial).
* inferior.h (stop_signal): Make it enum target_signal not int.
* target.c, target.h (target_signal_to_string, target_signal_to_name,
target_signal_from_name): New functions.
* inftarg.c, target.h (target_signal_to_host, target_signal_from_host,
store_waitstatus): New functions.
* procfs.c (procfs_notice_signals): Use them.
* i960-tdep.c (i960_fault_to_signal): New function, to replace
print_fault.
* config/i960/tm-i960.h: Don't define PRINT_RANDOM_SIGNAL.
1994-01-05 05:53:53 +08:00
|
|
|
|
switch (fault)
|
|
|
|
|
{
|
|
|
|
|
case 0: return TARGET_SIGNAL_BUS; /* parallel fault */
|
|
|
|
|
case 1: return TARGET_SIGNAL_UNKNOWN;
|
1994-01-18 00:18:17 +08:00
|
|
|
|
case 2: return TARGET_SIGNAL_ILL; /* operation fault */
|
* target.h: Add enum target_waitkind, enum target_signal, and
struct target_waitstatus. Change status argument to target_wait to
be struct target_waitstatus * instead of int *.
* target.h, infrun.c, all targets: Change type of signal arguments
to resume(), proceed(), and target_resume() from int to enum
target_signal.
* All targets (*_wait, *_resume): Change accordingly.
* infcmd.c (program_info, signal_command), throughout infrun.c,
* fork-child.c, solib.c, hppa-tdep.c, osfsolib.c: Use this stuff.
* convex-xdep.c, convex-tdep.c: Add FIXME's (getting the Convex
signal code stuff right with the new signals would be non-trivial).
* inferior.h (stop_signal): Make it enum target_signal not int.
* target.c, target.h (target_signal_to_string, target_signal_to_name,
target_signal_from_name): New functions.
* inftarg.c, target.h (target_signal_to_host, target_signal_from_host,
store_waitstatus): New functions.
* procfs.c (procfs_notice_signals): Use them.
* i960-tdep.c (i960_fault_to_signal): New function, to replace
print_fault.
* config/i960/tm-i960.h: Don't define PRINT_RANDOM_SIGNAL.
1994-01-05 05:53:53 +08:00
|
|
|
|
case 3: return TARGET_SIGNAL_FPE; /* arithmetic fault */
|
|
|
|
|
case 4: return TARGET_SIGNAL_FPE; /* floating point fault */
|
1994-01-18 00:18:17 +08:00
|
|
|
|
|
Replace useless FRAME, FRAME_ADDR types with struct frame_info *
and CORE_ADDR, respectively.
* frame.h (FRAME, FRAME_INFO_ID, FRAME_ADDR): Remove.
* blockframe.c (get_frame_info): Remove.
* a29k-tdep.c, alpha-tdep.c, blockframe.c, breakpoint.c,
breakpoint.h, energize.c, findvar.c, gdbtk.c, gould-pinsn.c,
h8300-tdep.c, h8500-tdep.c, hppa-tdep.c, i386-tdep.c, i960-tdep.c,
infcmd.c, inferior.h, infrun.c, m68k-tdep.c, m88k-tdep.c,
mips-tdep.c, nindy-tdep.c, printcmd.c, pyr-tdep.c, rs6000-tdep.c,
sh-tdep.c, sparc-tdep.c, stack.c, valops.c, z8k-tdep.c,
config/a29k/tm-a29k.h, config/alpha/tm-alpha.h,
config/gould/tm-pn.h, config/h8300/tm-h8300.h,
config/h8500/tm-h8500.h, config/mips/tm-mips.h,
config/ns32k/tm-merlin.h, config/ns32k/tm-umax.h,
config/pyr/tm-pyr.h, config/sparc/tm-sparc.h): Replace FRAME with
struct frame_info * everywhere, replace FRAME_ADDR with CORE_ADDR,
rename variables consistently (using `frame' or `fi'), remove
calls to get_frame_info and FRAME_INFO_ID, remove comments about
FRAME and FRAME_ADDR cruftiness.
1994-11-04 09:19:29 +08:00
|
|
|
|
/* constraint fault. This appears not to distinguish between
|
|
|
|
|
a range constraint fault (which should be SIGFPE) and a privileged
|
|
|
|
|
fault (which should be SIGILL). */
|
1994-01-18 00:18:17 +08:00
|
|
|
|
case 5: return TARGET_SIGNAL_ILL;
|
|
|
|
|
|
* target.h: Add enum target_waitkind, enum target_signal, and
struct target_waitstatus. Change status argument to target_wait to
be struct target_waitstatus * instead of int *.
* target.h, infrun.c, all targets: Change type of signal arguments
to resume(), proceed(), and target_resume() from int to enum
target_signal.
* All targets (*_wait, *_resume): Change accordingly.
* infcmd.c (program_info, signal_command), throughout infrun.c,
* fork-child.c, solib.c, hppa-tdep.c, osfsolib.c: Use this stuff.
* convex-xdep.c, convex-tdep.c: Add FIXME's (getting the Convex
signal code stuff right with the new signals would be non-trivial).
* inferior.h (stop_signal): Make it enum target_signal not int.
* target.c, target.h (target_signal_to_string, target_signal_to_name,
target_signal_from_name): New functions.
* inftarg.c, target.h (target_signal_to_host, target_signal_from_host,
store_waitstatus): New functions.
* procfs.c (procfs_notice_signals): Use them.
* i960-tdep.c (i960_fault_to_signal): New function, to replace
print_fault.
* config/i960/tm-i960.h: Don't define PRINT_RANDOM_SIGNAL.
1994-01-05 05:53:53 +08:00
|
|
|
|
case 6: return TARGET_SIGNAL_SEGV; /* virtual memory fault */
|
1994-01-18 00:18:17 +08:00
|
|
|
|
|
Replace useless FRAME, FRAME_ADDR types with struct frame_info *
and CORE_ADDR, respectively.
* frame.h (FRAME, FRAME_INFO_ID, FRAME_ADDR): Remove.
* blockframe.c (get_frame_info): Remove.
* a29k-tdep.c, alpha-tdep.c, blockframe.c, breakpoint.c,
breakpoint.h, energize.c, findvar.c, gdbtk.c, gould-pinsn.c,
h8300-tdep.c, h8500-tdep.c, hppa-tdep.c, i386-tdep.c, i960-tdep.c,
infcmd.c, inferior.h, infrun.c, m68k-tdep.c, m88k-tdep.c,
mips-tdep.c, nindy-tdep.c, printcmd.c, pyr-tdep.c, rs6000-tdep.c,
sh-tdep.c, sparc-tdep.c, stack.c, valops.c, z8k-tdep.c,
config/a29k/tm-a29k.h, config/alpha/tm-alpha.h,
config/gould/tm-pn.h, config/h8300/tm-h8300.h,
config/h8500/tm-h8500.h, config/mips/tm-mips.h,
config/ns32k/tm-merlin.h, config/ns32k/tm-umax.h,
config/pyr/tm-pyr.h, config/sparc/tm-sparc.h): Replace FRAME with
struct frame_info * everywhere, replace FRAME_ADDR with CORE_ADDR,
rename variables consistently (using `frame' or `fi'), remove
calls to get_frame_info and FRAME_INFO_ID, remove comments about
FRAME and FRAME_ADDR cruftiness.
1994-11-04 09:19:29 +08:00
|
|
|
|
/* protection fault. This is for an out-of-range argument to
|
|
|
|
|
"calls". I guess it also could be SIGILL. */
|
1994-01-18 00:18:17 +08:00
|
|
|
|
case 7: return TARGET_SIGNAL_SEGV;
|
|
|
|
|
|
* target.h: Add enum target_waitkind, enum target_signal, and
struct target_waitstatus. Change status argument to target_wait to
be struct target_waitstatus * instead of int *.
* target.h, infrun.c, all targets: Change type of signal arguments
to resume(), proceed(), and target_resume() from int to enum
target_signal.
* All targets (*_wait, *_resume): Change accordingly.
* infcmd.c (program_info, signal_command), throughout infrun.c,
* fork-child.c, solib.c, hppa-tdep.c, osfsolib.c: Use this stuff.
* convex-xdep.c, convex-tdep.c: Add FIXME's (getting the Convex
signal code stuff right with the new signals would be non-trivial).
* inferior.h (stop_signal): Make it enum target_signal not int.
* target.c, target.h (target_signal_to_string, target_signal_to_name,
target_signal_from_name): New functions.
* inftarg.c, target.h (target_signal_to_host, target_signal_from_host,
store_waitstatus): New functions.
* procfs.c (procfs_notice_signals): Use them.
* i960-tdep.c (i960_fault_to_signal): New function, to replace
print_fault.
* config/i960/tm-i960.h: Don't define PRINT_RANDOM_SIGNAL.
1994-01-05 05:53:53 +08:00
|
|
|
|
case 8: return TARGET_SIGNAL_BUS; /* machine fault */
|
|
|
|
|
case 9: return TARGET_SIGNAL_BUS; /* structural fault */
|
1994-01-18 00:18:17 +08:00
|
|
|
|
case 0xa: return TARGET_SIGNAL_ILL; /* type fault */
|
* target.h: Add enum target_waitkind, enum target_signal, and
struct target_waitstatus. Change status argument to target_wait to
be struct target_waitstatus * instead of int *.
* target.h, infrun.c, all targets: Change type of signal arguments
to resume(), proceed(), and target_resume() from int to enum
target_signal.
* All targets (*_wait, *_resume): Change accordingly.
* infcmd.c (program_info, signal_command), throughout infrun.c,
* fork-child.c, solib.c, hppa-tdep.c, osfsolib.c: Use this stuff.
* convex-xdep.c, convex-tdep.c: Add FIXME's (getting the Convex
signal code stuff right with the new signals would be non-trivial).
* inferior.h (stop_signal): Make it enum target_signal not int.
* target.c, target.h (target_signal_to_string, target_signal_to_name,
target_signal_from_name): New functions.
* inftarg.c, target.h (target_signal_to_host, target_signal_from_host,
store_waitstatus): New functions.
* procfs.c (procfs_notice_signals): Use them.
* i960-tdep.c (i960_fault_to_signal): New function, to replace
print_fault.
* config/i960/tm-i960.h: Don't define PRINT_RANDOM_SIGNAL.
1994-01-05 05:53:53 +08:00
|
|
|
|
case 0xb: return TARGET_SIGNAL_UNKNOWN; /* reserved fault */
|
|
|
|
|
case 0xc: return TARGET_SIGNAL_BUS; /* process fault */
|
|
|
|
|
case 0xd: return TARGET_SIGNAL_SEGV; /* descriptor fault */
|
|
|
|
|
case 0xe: return TARGET_SIGNAL_BUS; /* event fault */
|
|
|
|
|
case 0xf: return TARGET_SIGNAL_UNKNOWN; /* reserved fault */
|
|
|
|
|
case 0x10: return TARGET_SIGNAL_TRAP; /* single-step trace */
|
|
|
|
|
case 0x11: return TARGET_SIGNAL_TRAP; /* branch trace */
|
|
|
|
|
case 0x12: return TARGET_SIGNAL_TRAP; /* call trace */
|
|
|
|
|
case 0x13: return TARGET_SIGNAL_TRAP; /* return trace */
|
|
|
|
|
case 0x14: return TARGET_SIGNAL_TRAP; /* pre-return trace */
|
|
|
|
|
case 0x15: return TARGET_SIGNAL_TRAP; /* supervisor call trace */
|
|
|
|
|
case 0x16: return TARGET_SIGNAL_TRAP; /* breakpoint trace */
|
|
|
|
|
default: return TARGET_SIGNAL_UNKNOWN;
|
|
|
|
|
}
|
1991-03-29 00:28:29 +08:00
|
|
|
|
}
|
|
|
|
|
|
General cleanup and simplication of disassembler interface.
* a29k-pinsn.c, arm-pinsn.c, convex-pinsn.c, gould-pinsn.c,
hppa-pinsn.c, i386-pinsn.c, i960-pinsn.c, m68k-pinsn.c,
m88k-pinsn.c, mips-pinsn.c, ns32k-pinsn.c, pyr-pinsn.c,
rs6000-pinsn.c, sparc-pinsn.c, tahoe-pinsn.c, vax-pinsn.c: Remove.
* gould-tdep.c, ns32k-tdep.c, tahoe-tdep.c, vax-tdep.c: New files,
had been -pinsn.c files.
* Makefile.in (ALLDEPFILES): Remove removed files.
(a29k-pinsn.o, arm-pinsn.o, convex-pinsn.o, gould-pinsn.o,
hppa-pinsn.o, i386-pinsn.o, i960-pinsn.o, m68k-pinsn.o,
m88k-pinsn.o, mips-pinsn.o, ns32k-pinsn.o, pyr-pinsn.o,
rs6000-pinsn.o, sparc-pinsn.o, tahoe-pinsn.o, vax-pinsn.o):
Remove compile actions.
* arm-tdep.o, gould-tdep.o, ns32k-tdep.o, tahoe-tdep.o,
vax-tdep.o: Add compile actions.
* defs.h (tm_print_insn): New global.
* a29k-tdep.c (gdb_print_insn_a29k): New function.
(_initialize_a29k_tdep): Rename from _initialize_29k,
set tm_print_insn.
* alpha-tdep.c (print_insn): Remove.
(_initialize_alpha_tdep): Set tm_print_insn.
* arm-tdep.c (arm_print_insn): New function, was print_insn
in arm-pinsn.c.
* convex-tdep.c (convex_print_insn): New function, was print_insn
in convex-pinsn.c.
* h8300-tdep.c (print_insn): Remove.
(gdb_print_insn_h8300): New function.
(_initialize_h8300_tdep): New function.
* h8500-tdep.c (print_insn): Remove.
(_initialize_h8500_tdep): New function.
* hppa-tdep.c (_initialize_hppa_tdep): Set tm_print_insn.
* i386-tdep.c (_initialize_i386_tdep): New function.
* i960-tdep.c (mem, next_insn): New functions, were in
i960-pinsn.c.
(_initialize_i960_tdep): Set tm_print_insn.
* m68k-tdep.c (_initialize_m68k_tdep): New function.
* m88k-tdep.c (_initialize_m88k_tdep): New function.
* mips-tdep.c (gdb_print_insn_mips): New function.
(_initialize_mips_tdep): Set tm_print_insn.
* pyr-tdep.c (pyr_print_insn): New function, was print_insn
in pyr-pinsn.c.
* rs6000-tdep.c (_initialize_rs6000_tdep): New function.
* sh-tdep.c (print_insn): Remove.
(gdb_print_insn_sh): New function.
(_initialize_sh_tdep): Set tm_print_insn.
* sparc-tdep.c (_initialize_sparc_tdep): New function.
* w65-tdep.c (print_insn): Remove.
(_initialize_w65_tdep): New function.
* z8k-tdep.c (print_insn): Remove.
(gdb_print_insn_z8k): New function.
(_initialize_z8k_tdep): Set tm_print_insn.
* printcmd.c (print_insn): New function, generic disassembler.
* config/*/*.mt (TDEPFILES): Remove refs to *-pinsn.o.
* defs.h (query_hook, error_hook): Fix prototypes.
1995-01-17 12:36:51 +08:00
|
|
|
|
/****************************************/
|
|
|
|
|
/* MEM format */
|
|
|
|
|
/****************************************/
|
|
|
|
|
|
|
|
|
|
struct tabent {
|
|
|
|
|
char *name;
|
|
|
|
|
char numops;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
static int /* returns instruction length: 4 or 8 */
|
|
|
|
|
mem( memaddr, word1, word2, noprint )
|
|
|
|
|
unsigned long memaddr;
|
|
|
|
|
unsigned long word1, word2;
|
|
|
|
|
int noprint; /* If TRUE, return instruction length, but
|
|
|
|
|
don't output any text. */
|
|
|
|
|
{
|
|
|
|
|
int i, j;
|
|
|
|
|
int len;
|
|
|
|
|
int mode;
|
|
|
|
|
int offset;
|
|
|
|
|
const char *reg1, *reg2, *reg3;
|
|
|
|
|
|
|
|
|
|
/* This lookup table is too sparse to make it worth typing in, but not
|
|
|
|
|
* so large as to make a sparse array necessary. We allocate the
|
|
|
|
|
* table at runtime, initialize all entries to empty, and copy the
|
|
|
|
|
* real ones in from an initialization table.
|
|
|
|
|
*
|
|
|
|
|
* NOTE: In this table, the meaning of 'numops' is:
|
|
|
|
|
* 1: single operand
|
|
|
|
|
* 2: 2 operands, load instruction
|
|
|
|
|
* -2: 2 operands, store instruction
|
|
|
|
|
*/
|
|
|
|
|
static struct tabent *mem_tab = NULL;
|
|
|
|
|
/* Opcodes of 0x8X, 9X, aX, bX, and cX must be in the table. */
|
|
|
|
|
#define MEM_MIN 0x80
|
|
|
|
|
#define MEM_MAX 0xcf
|
|
|
|
|
#define MEM_SIZ ((MEM_MAX-MEM_MIN+1) * sizeof(struct tabent))
|
|
|
|
|
|
|
|
|
|
static struct { int opcode; char *name; char numops; } mem_init[] = {
|
|
|
|
|
0x80, "ldob", 2,
|
|
|
|
|
0x82, "stob", -2,
|
|
|
|
|
0x84, "bx", 1,
|
|
|
|
|
0x85, "balx", 2,
|
|
|
|
|
0x86, "callx", 1,
|
|
|
|
|
0x88, "ldos", 2,
|
|
|
|
|
0x8a, "stos", -2,
|
|
|
|
|
0x8c, "lda", 2,
|
|
|
|
|
0x90, "ld", 2,
|
|
|
|
|
0x92, "st", -2,
|
|
|
|
|
0x98, "ldl", 2,
|
|
|
|
|
0x9a, "stl", -2,
|
|
|
|
|
0xa0, "ldt", 2,
|
|
|
|
|
0xa2, "stt", -2,
|
|
|
|
|
0xb0, "ldq", 2,
|
|
|
|
|
0xb2, "stq", -2,
|
|
|
|
|
0xc0, "ldib", 2,
|
|
|
|
|
0xc2, "stib", -2,
|
|
|
|
|
0xc8, "ldis", 2,
|
|
|
|
|
0xca, "stis", -2,
|
|
|
|
|
0, NULL, 0
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
if ( mem_tab == NULL ){
|
|
|
|
|
mem_tab = (struct tabent *) xmalloc( MEM_SIZ );
|
|
|
|
|
memset( mem_tab, '\0', MEM_SIZ );
|
|
|
|
|
for ( i = 0; mem_init[i].opcode != 0; i++ ){
|
|
|
|
|
j = mem_init[i].opcode - MEM_MIN;
|
|
|
|
|
mem_tab[j].name = mem_init[i].name;
|
|
|
|
|
mem_tab[j].numops = mem_init[i].numops;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
i = ((word1 >> 24) & 0xff) - MEM_MIN;
|
|
|
|
|
mode = (word1 >> 10) & 0xf;
|
|
|
|
|
|
|
|
|
|
if ( (mem_tab[i].name != NULL) /* Valid instruction */
|
|
|
|
|
&& ((mode == 5) || (mode >=12)) ){ /* With 32-bit displacement */
|
|
|
|
|
len = 8;
|
|
|
|
|
} else {
|
|
|
|
|
len = 4;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if ( noprint ){
|
|
|
|
|
return len;
|
|
|
|
|
}
|
|
|
|
|
abort ();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Read the i960 instruction at 'memaddr' and return the address of
|
|
|
|
|
the next instruction after that, or 0 if 'memaddr' is not the
|
|
|
|
|
address of a valid instruction. The first word of the instruction
|
|
|
|
|
is stored at 'pword1', and the second word, if any, is stored at
|
|
|
|
|
'pword2'. */
|
|
|
|
|
|
|
|
|
|
static CORE_ADDR
|
|
|
|
|
next_insn (memaddr, pword1, pword2)
|
|
|
|
|
unsigned long *pword1, *pword2;
|
|
|
|
|
CORE_ADDR memaddr;
|
|
|
|
|
{
|
|
|
|
|
int len;
|
|
|
|
|
char buf[8];
|
|
|
|
|
|
|
|
|
|
/* Read the two (potential) words of the instruction at once,
|
|
|
|
|
to eliminate the overhead of two calls to read_memory ().
|
|
|
|
|
FIXME: Loses if the first one is readable but the second is not
|
|
|
|
|
(e.g. last word of the segment). */
|
|
|
|
|
|
|
|
|
|
read_memory (memaddr, buf, 8);
|
|
|
|
|
*pword1 = extract_unsigned_integer (buf, 4);
|
|
|
|
|
*pword2 = extract_unsigned_integer (buf + 4, 4);
|
|
|
|
|
|
|
|
|
|
/* Divide instruction set into classes based on high 4 bits of opcode*/
|
|
|
|
|
|
|
|
|
|
switch ((*pword1 >> 28) & 0xf)
|
|
|
|
|
{
|
|
|
|
|
case 0x0:
|
|
|
|
|
case 0x1: /* ctrl */
|
|
|
|
|
|
|
|
|
|
case 0x2:
|
|
|
|
|
case 0x3: /* cobr */
|
|
|
|
|
|
|
|
|
|
case 0x5:
|
|
|
|
|
case 0x6:
|
|
|
|
|
case 0x7: /* reg */
|
|
|
|
|
len = 4;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case 0x8:
|
|
|
|
|
case 0x9:
|
|
|
|
|
case 0xa:
|
|
|
|
|
case 0xb:
|
|
|
|
|
case 0xc:
|
|
|
|
|
len = mem (memaddr, *pword1, *pword2, 1);
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
default: /* invalid instruction */
|
|
|
|
|
len = 0;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (len)
|
|
|
|
|
return memaddr + len;
|
|
|
|
|
else
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
1991-03-29 00:28:29 +08:00
|
|
|
|
|
* Makefile.in (init.c): Generate using the source, not munch. This
cleans up all kinds of hassles (which nm to use in munch, etc). The
new formatting conventions (mostly already followed) are that
the name of the _initialize_* routines must start in column zero,
and must not be inside #if.
* munch: Removed.
* Makefile.in: Remove references to munch.
* serial.c, remote.c, infptrace.c, maint.c, convex-tdep.c,
alpha-tdep.c, hp300ux-nat.c, hppab-nat.c, osfsolib.c, remote-es.c,
procfs.c, remote-udi.c, ser-go32.c, ultra3-xdep.c, sh-tdep.c,
i960-tdep.c, hppa-tdep.c, h8500-tdep.c, dpx2-nat.c, delta68-nat.c,
z8k-tdep.c: Make sure the above conventions are followed. Make
sure they are all declared as returning void. Clean up
miscellaneous comments and such.
1993-10-22 13:55:58 +08:00
|
|
|
|
void
|
1991-03-29 00:28:29 +08:00
|
|
|
|
_initialize_i960_tdep ()
|
|
|
|
|
{
|
|
|
|
|
check_host ();
|
General cleanup and simplication of disassembler interface.
* a29k-pinsn.c, arm-pinsn.c, convex-pinsn.c, gould-pinsn.c,
hppa-pinsn.c, i386-pinsn.c, i960-pinsn.c, m68k-pinsn.c,
m88k-pinsn.c, mips-pinsn.c, ns32k-pinsn.c, pyr-pinsn.c,
rs6000-pinsn.c, sparc-pinsn.c, tahoe-pinsn.c, vax-pinsn.c: Remove.
* gould-tdep.c, ns32k-tdep.c, tahoe-tdep.c, vax-tdep.c: New files,
had been -pinsn.c files.
* Makefile.in (ALLDEPFILES): Remove removed files.
(a29k-pinsn.o, arm-pinsn.o, convex-pinsn.o, gould-pinsn.o,
hppa-pinsn.o, i386-pinsn.o, i960-pinsn.o, m68k-pinsn.o,
m88k-pinsn.o, mips-pinsn.o, ns32k-pinsn.o, pyr-pinsn.o,
rs6000-pinsn.o, sparc-pinsn.o, tahoe-pinsn.o, vax-pinsn.o):
Remove compile actions.
* arm-tdep.o, gould-tdep.o, ns32k-tdep.o, tahoe-tdep.o,
vax-tdep.o: Add compile actions.
* defs.h (tm_print_insn): New global.
* a29k-tdep.c (gdb_print_insn_a29k): New function.
(_initialize_a29k_tdep): Rename from _initialize_29k,
set tm_print_insn.
* alpha-tdep.c (print_insn): Remove.
(_initialize_alpha_tdep): Set tm_print_insn.
* arm-tdep.c (arm_print_insn): New function, was print_insn
in arm-pinsn.c.
* convex-tdep.c (convex_print_insn): New function, was print_insn
in convex-pinsn.c.
* h8300-tdep.c (print_insn): Remove.
(gdb_print_insn_h8300): New function.
(_initialize_h8300_tdep): New function.
* h8500-tdep.c (print_insn): Remove.
(_initialize_h8500_tdep): New function.
* hppa-tdep.c (_initialize_hppa_tdep): Set tm_print_insn.
* i386-tdep.c (_initialize_i386_tdep): New function.
* i960-tdep.c (mem, next_insn): New functions, were in
i960-pinsn.c.
(_initialize_i960_tdep): Set tm_print_insn.
* m68k-tdep.c (_initialize_m68k_tdep): New function.
* m88k-tdep.c (_initialize_m88k_tdep): New function.
* mips-tdep.c (gdb_print_insn_mips): New function.
(_initialize_mips_tdep): Set tm_print_insn.
* pyr-tdep.c (pyr_print_insn): New function, was print_insn
in pyr-pinsn.c.
* rs6000-tdep.c (_initialize_rs6000_tdep): New function.
* sh-tdep.c (print_insn): Remove.
(gdb_print_insn_sh): New function.
(_initialize_sh_tdep): Set tm_print_insn.
* sparc-tdep.c (_initialize_sparc_tdep): New function.
* w65-tdep.c (print_insn): Remove.
(_initialize_w65_tdep): New function.
* z8k-tdep.c (print_insn): Remove.
(gdb_print_insn_z8k): New function.
(_initialize_z8k_tdep): Set tm_print_insn.
* printcmd.c (print_insn): New function, generic disassembler.
* config/*/*.mt (TDEPFILES): Remove refs to *-pinsn.o.
* defs.h (query_hook, error_hook): Fix prototypes.
1995-01-17 12:36:51 +08:00
|
|
|
|
|
|
|
|
|
tm_print_insn = print_insn_i960;
|
1991-03-29 00:28:29 +08:00
|
|
|
|
}
|