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Diffstat (limited to 'gdb/irix4-nat.c')
| -rw-r--r-- | gdb/irix4-nat.c | 207 |
1 files changed, 0 insertions, 207 deletions
diff --git a/gdb/irix4-nat.c b/gdb/irix4-nat.c deleted file mode 100644 index 90229bb..0000000 --- a/gdb/irix4-nat.c +++ /dev/null @@ -1,207 +0,0 @@ -/* Native support for the SGI Iris running IRIX version 4, for GDB. - Copyright 1988, 1989, 1990, 1991, 1992, 1993, 1995, 1996, 1999, 2000, - 2001 Free Software Foundation, Inc. - Contributed by Alessandro Forin(af@cs.cmu.edu) at CMU - and by Per Bothner(bothner@cs.wisc.edu) at U.Wisconsin. - Implemented for Irix 4.x by Garrett A. Wollman. - - 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 "inferior.h" -#include "gdbcore.h" -#include "regcache.h" - -#include <sys/time.h> -#include <sys/procfs.h> -#include <setjmp.h> /* For JB_XXX. */ - -/* Prototypes for supply_gregset etc. */ -#include "gregset.h" - -/* Size of elements in jmpbuf */ - -#define JB_ELEMENT_SIZE 4 - -typedef unsigned int greg_t; /* why isn't this defined? */ - -static void fetch_core_registers (char *, unsigned int, int, CORE_ADDR); - -/* - * See the comment in m68k-tdep.c regarding the utility of these functions. - */ - -void -supply_gregset (gregset_t *gregsetp) -{ - register int regi; - register greg_t *regp = (greg_t *) (gregsetp->gp_regs); - char zerobuf[MAX_REGISTER_SIZE]; - memset (zerobuf, 0, MAX_REGISTER_SIZE); - - /* FIXME: somewhere, there should be a #define for the meaning - of this magic number 32; we should use that. */ - for (regi = 0; regi < 32; regi++) - supply_register (regi, (char *) (regp + regi)); - - supply_register (PC_REGNUM, (char *) &(gregsetp->gp_pc)); - supply_register (HI_REGNUM, (char *) &(gregsetp->gp_mdhi)); - supply_register (LO_REGNUM, (char *) &(gregsetp->gp_mdlo)); - supply_register (CAUSE_REGNUM, (char *) &(gregsetp->gp_cause)); - - /* Fill inaccessible registers with zero. */ - supply_register (BADVADDR_REGNUM, zerobuf); -} - -void -fill_gregset (gregset_t *gregsetp, int regno) -{ - int regi; - register greg_t *regp = (greg_t *) (gregsetp->gp_regs); - - /* same FIXME as above wrt 32 */ - for (regi = 0; regi < 32; regi++) - if ((regno == -1) || (regno == regi)) - *(regp + regi) = *(greg_t *) & deprecated_registers[REGISTER_BYTE (regi)]; - - if ((regno == -1) || (regno == PC_REGNUM)) - gregsetp->gp_pc = *(greg_t *) & deprecated_registers[REGISTER_BYTE (PC_REGNUM)]; - - if ((regno == -1) || (regno == CAUSE_REGNUM)) - gregsetp->gp_cause = *(greg_t *) & deprecated_registers[REGISTER_BYTE (CAUSE_REGNUM)]; - - if ((regno == -1) || (regno == HI_REGNUM)) - gregsetp->gp_mdhi = *(greg_t *) & deprecated_registers[REGISTER_BYTE (HI_REGNUM)]; - - if ((regno == -1) || (regno == LO_REGNUM)) - gregsetp->gp_mdlo = *(greg_t *) & deprecated_registers[REGISTER_BYTE (LO_REGNUM)]; -} - -/* - * Now we do the same thing for floating-point registers. - * We don't bother to condition on FP0_REGNUM since any - * reasonable MIPS configuration has an R3010 in it. - * - * Again, see the comments in m68k-tdep.c. - */ - -void -supply_fpregset (fpregset_t *fpregsetp) -{ - register int regi; - char zerobuf[MAX_REGISTER_SIZE]; - memset (zerobuf, 0, MAX_REGISTER_SIZE); - - for (regi = 0; regi < 32; regi++) - supply_register (FP0_REGNUM + regi, - (char *) &fpregsetp->fp_r.fp_regs[regi]); - - supply_register (FCRCS_REGNUM, (char *) &fpregsetp->fp_csr); - - /* FIXME: how can we supply FCRIR_REGNUM? SGI doesn't tell us. */ - supply_register (FCRIR_REGNUM, zerobuf); -} - -void -fill_fpregset (fpregset_t *fpregsetp, int regno) -{ - int regi; - char *from, *to; - - for (regi = FP0_REGNUM; regi < FP0_REGNUM + 32; regi++) - { - if ((regno == -1) || (regno == regi)) - { - from = (char *) &deprecated_registers[REGISTER_BYTE (regi)]; - to = (char *) &(fpregsetp->fp_r.fp_regs[regi - FP0_REGNUM]); - memcpy (to, from, REGISTER_RAW_SIZE (regi)); - } - } - - if ((regno == -1) || (regno == FCRCS_REGNUM)) - fpregsetp->fp_csr = *(unsigned *) &deprecated_registers[REGISTER_BYTE (FCRCS_REGNUM)]; -} - - -/* Figure out where the longjmp will land. - We expect the first arg to be a pointer to the jmp_buf structure from which - we extract the pc (JB_PC) that we will land at. The pc is copied into PC. - This routine returns true on success. */ - -int -get_longjmp_target (CORE_ADDR *pc) -{ - char *buf; - CORE_ADDR jb_addr; - - buf = alloca (TARGET_PTR_BIT / TARGET_CHAR_BIT); - jb_addr = read_register (A0_REGNUM); - - if (target_read_memory (jb_addr + JB_PC * JB_ELEMENT_SIZE, buf, - TARGET_PTR_BIT / TARGET_CHAR_BIT)) - return 0; - - *pc = extract_unsigned_integer (buf, TARGET_PTR_BIT / TARGET_CHAR_BIT); - - return 1; -} - -/* Provide registers to GDB from a core file. - - CORE_REG_SECT points to an array of bytes, which were obtained from - a core file which BFD thinks might contain register contents. - CORE_REG_SIZE is its size. - - Normally, WHICH says which register set corelow suspects this is: - 0 --- the general-purpose register set - 2 --- the floating-point register set - However, for Irix 4, WHICH isn't used. - - REG_ADDR is also unused. */ - -static void -fetch_core_registers (char *core_reg_sect, unsigned core_reg_size, - int which, CORE_ADDR reg_addr) -{ - if (core_reg_size != DEPRECATED_REGISTER_BYTES) - { - warning ("wrong size gregset struct in core file"); - return; - } - - memcpy ((char *) deprecated_registers, core_reg_sect, core_reg_size); -} - - -/* Register that we are able to handle irix4 core file formats. - FIXME: is this really bfd_target_unknown_flavour? */ - -static struct core_fns irix4_core_fns = -{ - bfd_target_unknown_flavour, /* core_flavour */ - default_check_format, /* check_format */ - default_core_sniffer, /* core_sniffer */ - fetch_core_registers, /* core_read_registers */ - NULL /* next */ -}; - -void -_initialize_core_irix4 (void) -{ - add_core_fns (&irix4_core_fns); -} |