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Diffstat (limited to 'gdb/mipsv4-nat.c')
| -rw-r--r-- | gdb/mipsv4-nat.c | 173 |
1 files changed, 0 insertions, 173 deletions
diff --git a/gdb/mipsv4-nat.c b/gdb/mipsv4-nat.c deleted file mode 100644 index 199f57c..0000000 --- a/gdb/mipsv4-nat.c +++ /dev/null @@ -1,173 +0,0 @@ -/* Native support for MIPS running SVR4, for GDB. - Copyright (C) 1994, 1995, 2000, 2001 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., 51 Franklin Street, Fifth Floor, - Boston, MA 02110-1301, USA. */ - -#include "defs.h" -#include "inferior.h" -#include "gdbcore.h" -#include "target.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 - -/* - * See the comment in m68k-tdep.c regarding the utility of these functions. - * - * These definitions are from the MIPS SVR4 ABI, so they may work for - * any MIPS SVR4 target. - */ - -void -supply_gregset (gregset_t *gregsetp) -{ - int regi; - greg_t *regp = &(*gregsetp)[0]; - char zerobuf[MAX_REGISTER_SIZE]; - memset (zerobuf, 0, MAX_REGISTER_SIZE); - - for (regi = 0; regi <= CXT_RA; regi++) - regcache_raw_supply (current_regcache, regi, (char *) (regp + regi)); - - regcache_raw_supply (current_regcache, mips_regnum (current_gdbarch)->pc, - (char *) (regp + CXT_EPC)); - regcache_raw_supply (current_regcache, mips_regnum (current_gdbarch)->hi, - (char *) (regp + CXT_MDHI)); - regcache_raw_supply (current_regcache, mips_regnum (current_gdbarch)->lo, - (char *) (regp + CXT_MDLO)); - regcache_raw_supply (current_regcache, mips_regnum (current_gdbarch)->cause, - (char *) (regp + CXT_CAUSE)); - - /* Fill inaccessible registers with zero. */ - regcache_raw_supply (current_regcache, MIPS_PS_REGNUM, zerobuf); - regcache_raw_supply (current_regcache, - mips_regnum (current_gdbarch)->badvaddr, - zerobuf); - regcache_raw_supply (current_regcache, DEPRECATED_FP_REGNUM, zerobuf); - regcache_raw_supply (current_regcache, MIPS_UNUSED_REGNUM, zerobuf); - for (regi = MIPS_FIRST_EMBED_REGNUM; regi <= MIPS_LAST_EMBED_REGNUM; regi++) - regcache_raw_supply (current_regcache, regi, zerobuf); -} - -void -fill_gregset (gregset_t *gregsetp, int regno) -{ - int regi; - greg_t *regp = &(*gregsetp)[0]; - - for (regi = 0; regi <= 32; regi++) - if ((regno == -1) || (regno == regi)) - *(regp + regi) = *(greg_t *) & deprecated_registers[DEPRECATED_REGISTER_BYTE (regi)]; - - if ((regno == -1) || (regno == mips_regnum (current_gdbarch)->pc)) - *(regp + CXT_EPC) = *(greg_t *) & deprecated_registers[DEPRECATED_REGISTER_BYTE (mips_regnum (current_gdbarch)->pc)]; - - if ((regno == -1) || (regno == mips_regnum (current_gdbarch)->cause)) - *(regp + CXT_CAUSE) = *(greg_t *) & deprecated_registers[DEPRECATED_REGISTER_BYTE (mips_regnum (current_gdbarch)->cause)]; - - if ((regno == -1) || (regno == mips_regnum (current_gdbarch)->hi)) - *(regp + CXT_MDHI) = *(greg_t *) & deprecated_registers[DEPRECATED_REGISTER_BYTE (mips_regnum (current_gdbarch)->hi)]; - - if ((regno == -1) || (regno == mips_regnum (current_gdbarch)->lo)) - *(regp + CXT_MDLO) = *(greg_t *) & deprecated_registers[DEPRECATED_REGISTER_BYTE (mips_regnum (current_gdbarch)->lo)]; -} - -/* - * 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) -{ - int regi; - char zerobuf[MAX_REGISTER_SIZE]; - memset (zerobuf, 0, MAX_REGISTER_SIZE); - - for (regi = 0; regi < 32; regi++) - regcache_raw_supply (current_regcache, - mips_regnum (current_gdbarch)->fp0 + regi, - (char *) &fpregsetp->fp_r.fp_regs[regi]); - - regcache_raw_supply (current_regcache, - mips_regnum (current_gdbarch)->fp_control_status, - (char *) &fpregsetp->fp_csr); - - /* FIXME: how can we supply FCRIR? The ABI doesn't tell us. */ - regcache_raw_supply (current_regcache, - mips_regnum (current_gdbarch)->fp_implementation_revision, - zerobuf); -} - -void -fill_fpregset (fpregset_t *fpregsetp, int regno) -{ - int regi; - char *from, *to; - - for (regi = mips_regnum (current_gdbarch)->fp0; - regi < mips_regnum (current_gdbarch)->fp0 + 32; regi++) - { - if ((regno == -1) || (regno == regi)) - { - from = (char *) &deprecated_registers[DEPRECATED_REGISTER_BYTE (regi)]; - to = (char *) &(fpregsetp->fp_r.fp_regs[regi - mips_regnum (current_gdbarch)->fp0]); - memcpy (to, from, register_size (current_gdbarch, regi)); - } - } - - if ((regno == -1) - || (regno == mips_regnum (current_gdbarch)->fp_control_status)) - fpregsetp->fp_csr = *(unsigned *) &deprecated_registers[DEPRECATED_REGISTER_BYTE (mips_regnum (current_gdbarch)->fp_control_status)]; -} - - -/* 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 (MIPS_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; -} |