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author | Stan Shebs <shebs@codesourcery.com> | 1999-04-16 01:34:07 +0000 |
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committer | Stan Shebs <shebs@codesourcery.com> | 1999-04-16 01:34:07 +0000 |
commit | 071ea11e85eb9d529cc5eb3d35f6247466a21b99 (patch) | |
tree | 5deda65b8d7b04d1f4cbc534c3206d328e1267ec /gdb/i386aix-nat.c | |
parent | 1730ec6b1848f0f32154277f788fb29f88d8475b (diff) | |
download | gdb-071ea11e85eb9d529cc5eb3d35f6247466a21b99.zip gdb-071ea11e85eb9d529cc5eb3d35f6247466a21b99.tar.gz gdb-071ea11e85eb9d529cc5eb3d35f6247466a21b99.tar.bz2 |
Initial creation of sourceware repository
Diffstat (limited to 'gdb/i386aix-nat.c')
-rw-r--r-- | gdb/i386aix-nat.c | 362 |
1 files changed, 0 insertions, 362 deletions
diff --git a/gdb/i386aix-nat.c b/gdb/i386aix-nat.c deleted file mode 100644 index 20e656e..0000000 --- a/gdb/i386aix-nat.c +++ /dev/null @@ -1,362 +0,0 @@ -/* Intel 386 native support. - Copyright (C) 1988, 1989, 1991, 1992 Free Software Foundation, Inc. - -This file is part of GDB. - -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2 of the License, or -(at your option) any later version. - -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#include "defs.h" -#include "frame.h" -#include "inferior.h" -#include "language.h" -#include "gdbcore.h" - -#ifdef USG -#include <sys/types.h> -#endif - -#include <sys/param.h> -#include <sys/dir.h> -#include <signal.h> -#include <sys/user.h> -#include <sys/ioctl.h> -#include <fcntl.h> - -#include <sys/file.h> -#include "gdb_stat.h" - -#include <stddef.h> -#include <sys/ptrace.h> - -/* Does AIX define this in <errno.h>? */ -extern int errno; - -#ifdef HAVE_SYS_REG_H -#include <sys/reg.h> -#endif - -#include "floatformat.h" - -#include "target.h" - -static void fetch_core_registers PARAMS ((char *, unsigned, int, CORE_ADDR)); - - -/* this table must line up with REGISTER_NAMES in tm-i386v.h */ -/* symbols like 'EAX' come from <sys/reg.h> */ -static int regmap[] = -{ - EAX, ECX, EDX, EBX, - USP, EBP, ESI, EDI, - EIP, EFL, CS, SS, - DS, ES, FS, GS, -}; - -/* blockend is the value of u.u_ar0, and points to the - * place where GS is stored - */ - -int -i386_register_u_addr (blockend, regnum) - int blockend; - int regnum; -{ -#if 0 - /* this will be needed if fp registers are reinstated */ - /* for now, you can look at them with 'info float' - * sys5 wont let you change them with ptrace anyway - */ - if (regnum >= FP0_REGNUM && regnum <= FP7_REGNUM) - { - int ubase, fpstate; - struct user u; - ubase = blockend + 4 * (SS + 1) - KSTKSZ; - fpstate = ubase + ((char *)&u.u_fpstate - (char *)&u); - return (fpstate + 0x1c + 10 * (regnum - FP0_REGNUM)); - } - else -#endif - return (blockend + 4 * regmap[regnum]); - -} - -/* The code below only work on the aix ps/2 (i386-ibm-aix) - - * mtranle@paris - Sat Apr 11 10:34:12 1992 - */ - -struct env387 -{ - unsigned short control; - unsigned short r0; - unsigned short status; - unsigned short r1; - unsigned short tag; - unsigned short r2; - unsigned long eip; - unsigned short code_seg; - unsigned short opcode; - unsigned long operand; - unsigned short operand_seg; - unsigned short r3; - unsigned char regs[8][10]; -}; - -static -print_387_status (status, ep) - unsigned short status; - struct env387 *ep; -{ - int i; - int bothstatus; - int top; - int fpreg; - unsigned char *p; - - bothstatus = ((status != 0) && (ep->status != 0)); - if (status != 0) - { - if (bothstatus) - printf_unfiltered ("u: "); - print_387_status_word (status); - } - - if (ep->status != 0) - { - if (bothstatus) - printf_unfiltered ("e: "); - print_387_status_word (ep->status); - } - - print_387_control_word (ep->control); - printf_unfiltered ("last exception: "); - printf_unfiltered ("opcode %s; ", local_hex_string(ep->opcode)); - printf_unfiltered ("pc %s:", local_hex_string(ep->code_seg)); - printf_unfiltered ("%s; ", local_hex_string(ep->eip)); - printf_unfiltered ("operand %s", local_hex_string(ep->operand_seg)); - printf_unfiltered (":%s\n", local_hex_string(ep->operand)); - - top = ((ep->status >> 11) & 7); - - printf_unfiltered ("regno tag msb lsb value\n"); - for (fpreg = 7; fpreg >= 0; fpreg--) - { - double val; - - printf_unfiltered ("%s %d: ", fpreg == top ? "=>" : " ", fpreg); - - switch ((ep->tag >> ((7 - fpreg) * 2)) & 3) - { - case 0: printf_unfiltered ("valid "); break; - case 1: printf_unfiltered ("zero "); break; - case 2: printf_unfiltered ("trap "); break; - case 3: printf_unfiltered ("empty "); break; - } - for (i = 9; i >= 0; i--) - printf_unfiltered ("%02x", ep->regs[fpreg][i]); - - i387_to_double ((char *)ep->regs[fpreg], (char *)&val); - printf_unfiltered (" %#g\n", val); - } -} - -static struct env387 core_env387; - -void -i386_float_info () -{ - struct env387 fps; - int fpsaved = 0; - /* We need to reverse the order of the registers. Apparently AIX stores - the highest-numbered ones first. */ - struct env387 fps_fixed; - int i; - - if (inferior_pid) - { - char buf[10]; - unsigned short status; - - ptrace (PT_READ_FPR, inferior_pid, buf, offsetof(struct env387, status)); - memcpy (&status, buf, sizeof (status)); - fpsaved = status; - } - else - { - if ((fpsaved = core_env387.status) != 0) - memcpy(&fps, &core_env387, sizeof(fps)); - } - - if (fpsaved == 0) - { - printf_unfiltered ("no floating point status saved\n"); - return; - } - - if (inferior_pid) - { - int offset; - for (offset = 0; offset < sizeof(fps); offset += 10) - { - char buf[10]; - ptrace (PT_READ_FPR, inferior_pid, buf, offset); - memcpy ((char *)&fps.control + offset, buf, - MIN(10, sizeof(fps) - offset)); - } - } - fps_fixed = fps; - for (i = 0; i < 8; ++i) - memcpy (fps_fixed.regs[i], fps.regs[7 - i], 10); - print_387_status (0, &fps_fixed); -} - -/* Fetch one register. */ -static void -fetch_register (regno) - int regno; -{ - char buf[MAX_REGISTER_RAW_SIZE]; - if (regno < FP0_REGNUM) - *(int *)buf = ptrace (PT_READ_GPR, inferior_pid, - PT_REG(regmap[regno]), 0, 0); - else - ptrace (PT_READ_FPR, inferior_pid, buf, - (regno - FP0_REGNUM)*10 + offsetof(struct env387, regs)); - supply_register (regno, buf); -} - -void -fetch_inferior_registers (regno) - int regno; -{ - if (regno < 0) - for (regno = 0; regno < NUM_REGS; regno++) - fetch_register (regno); - else - fetch_register (regno); -} - -/* store one register */ -static void -store_register (regno) - int regno; -{ - char buf[80]; - extern char registers[]; - errno = 0; - if (regno < FP0_REGNUM) - ptrace (PT_WRITE_GPR, inferior_pid, PT_REG(regmap[regno]), - *(int *) ®isters[REGISTER_BYTE (regno)], 0); - else - ptrace (PT_WRITE_FPR, inferior_pid, ®isters[REGISTER_BYTE (regno)], - (regno - FP0_REGNUM)*10 + offsetof(struct env387, regs)); - - if (errno != 0) - { - sprintf (buf, "writing register number %d", regno); - perror_with_name (buf); - } -} - -/* Store our register values back into the inferior. - If REGNO is -1, do this for all registers. - Otherwise, REGNO specifies which register (so we can save time). */ -void -store_inferior_registers (regno) - int regno; -{ - if (regno < 0) - for (regno = 0; regno < NUM_REGS; regno++) - store_register (regno); - else - store_register (regno); -} - -#ifndef CD_AX /* defined in sys/i386/coredump.h */ -# define CD_AX 0 -# define CD_BX 1 -# define CD_CX 2 -# define CD_DX 3 -# define CD_SI 4 -# define CD_DI 5 -# define CD_BP 6 -# define CD_SP 7 -# define CD_FL 8 -# define CD_IP 9 -# define CD_CS 10 -# define CD_DS 11 -# define CD_ES 12 -# define CD_FS 13 -# define CD_GS 14 -# define CD_SS 15 -#endif - -/* - * The order here in core_regmap[] has to be the same as in - * regmap[] above. - */ -static int core_regmap[] = -{ - CD_AX, CD_CX, CD_DX, CD_BX, - CD_SP, CD_BP, CD_SI, CD_DI, - CD_IP, CD_FL, CD_CS, CD_SS, - CD_DS, CD_ES, CD_FS, CD_GS, -}; - -static void -fetch_core_registers (core_reg_sect, core_reg_size, which, reg_addr) - char *core_reg_sect; - unsigned core_reg_size; - int which; - CORE_ADDR reg_addr; /* ignored */ -{ - - if (which == 0) - { - /* Integer registers */ - -#define cd_regs(n) ((int *)core_reg_sect)[n] -#define regs(n) *((int *) ®isters[REGISTER_BYTE (n)]) - - int i; - for (i = 0; i < FP0_REGNUM; i++) - regs(i) = cd_regs(core_regmap[i]); - } - else if (which == 2) - { - /* Floating point registers */ - - if (core_reg_size >= sizeof (core_env387)) - memcpy (&core_env387, core_reg_sect, core_reg_size); - else - fprintf_unfiltered (gdb_stderr, "Couldn't read float regs from core file\n"); - } -} - - -/* Register that we are able to handle i386aix core file formats. - FIXME: is this really bfd_target_unknown_flavour? */ - -static struct core_fns i386aix_core_fns = -{ - bfd_target_unknown_flavour, - fetch_core_registers, - NULL -}; - -void -_initialize_core_i386aix () -{ - add_core_fns (&i386aix_core_fns); -} |