diff options
Diffstat (limited to 'gdb/sparc-nat.c')
| -rw-r--r-- | gdb/sparc-nat.c | 201 |
1 files changed, 105 insertions, 96 deletions
diff --git a/gdb/sparc-nat.c b/gdb/sparc-nat.c index 3f5f8bf748c..be5308bda74 100644 --- a/gdb/sparc-nat.c +++ b/gdb/sparc-nat.c @@ -1,21 +1,22 @@ /* Functions specific to running gdb native on a SPARC running SunOS4. Copyright 1989, 1992, 1993, 1994, 1996 Free Software Foundation, Inc. -This file is part of GDB. + 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 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. + 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. */ + 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" @@ -59,7 +60,8 @@ fetch_inferior_registers (regno) /* We should never be called with deferred stores, because a prerequisite for writing regs is to have fetched them all (PREPARE_TO_STORE), sigh. */ - if (deferred_stores) abort(); + if (deferred_stores) + abort (); DO_DEFERRED_STORES; @@ -68,21 +70,21 @@ fetch_inferior_registers (regno) and the stack pointer has not yet been fetched, we have to do that first, since they're found in memory relative to the stack pointer. */ - if (regno < O7_REGNUM /* including -1 */ + if (regno < O7_REGNUM /* including -1 */ || regno >= Y_REGNUM || (!register_valid[SP_REGNUM] && regno < I7_REGNUM)) { if (0 != ptrace (PTRACE_GETREGS, inferior_pid, - (PTRACE_ARG3_TYPE) &inferior_registers, 0)) - perror("ptrace_getregs"); - + (PTRACE_ARG3_TYPE) & inferior_registers, 0)) + perror ("ptrace_getregs"); + registers[REGISTER_BYTE (0)] = 0; memcpy (®isters[REGISTER_BYTE (1)], &inferior_registers.r_g1, 15 * REGISTER_RAW_SIZE (G0_REGNUM)); - *(int *)®isters[REGISTER_BYTE (PS_REGNUM)] = inferior_registers.r_ps; - *(int *)®isters[REGISTER_BYTE (PC_REGNUM)] = inferior_registers.r_pc; - *(int *)®isters[REGISTER_BYTE (NPC_REGNUM)] = inferior_registers.r_npc; - *(int *)®isters[REGISTER_BYTE (Y_REGNUM)] = inferior_registers.r_y; + *(int *) ®isters[REGISTER_BYTE (PS_REGNUM)] = inferior_registers.r_ps; + *(int *) ®isters[REGISTER_BYTE (PC_REGNUM)] = inferior_registers.r_pc; + *(int *) ®isters[REGISTER_BYTE (NPC_REGNUM)] = inferior_registers.r_npc; + *(int *) ®isters[REGISTER_BYTE (Y_REGNUM)] = inferior_registers.r_y; for (i = G0_REGNUM; i <= O7_REGNUM; i++) register_valid[i] = 1; @@ -91,7 +93,7 @@ fetch_inferior_registers (regno) register_valid[PC_REGNUM] = 1; register_valid[NPC_REGNUM] = 1; /* If we don't set these valid, read_register_bytes() rereads - all the regs every time it is called! FIXME. */ + all the regs every time it is called! FIXME. */ register_valid[WIM_REGNUM] = 1; /* Not true yet, FIXME */ register_valid[TBR_REGNUM] = 1; /* Not true yet, FIXME */ register_valid[CPS_REGNUM] = 1; /* Not true yet, FIXME */ @@ -103,15 +105,15 @@ fetch_inferior_registers (regno) (regno >= FP0_REGNUM && regno <= FP0_REGNUM + 31)) { if (0 != ptrace (PTRACE_GETFPREGS, inferior_pid, - (PTRACE_ARG3_TYPE) &inferior_fp_registers, + (PTRACE_ARG3_TYPE) & inferior_fp_registers, 0)) - perror("ptrace_getfpregs"); + perror ("ptrace_getfpregs"); memcpy (®isters[REGISTER_BYTE (FP0_REGNUM)], &inferior_fp_registers, sizeof inferior_fp_registers.fpu_fr); memcpy (®isters[REGISTER_BYTE (FPS_REGNUM)], - &inferior_fp_registers.Fpu_fsr, - sizeof (FPU_FSR_TYPE)); - for (i = FP0_REGNUM; i <= FP0_REGNUM+31; i++) + &inferior_fp_registers.Fpu_fsr, + sizeof (FPU_FSR_TYPE)); + for (i = FP0_REGNUM; i <= FP0_REGNUM + 31; i++) register_valid[i] = 1; register_valid[FPS_REGNUM] = 1; } @@ -120,18 +122,18 @@ fetch_inferior_registers (regno) all (16 ptrace calls!) if we really need them. */ if (regno == -1) { - target_read_memory (*(CORE_ADDR*)®isters[REGISTER_BYTE (SP_REGNUM)], - ®isters[REGISTER_BYTE (L0_REGNUM)], - 16*REGISTER_RAW_SIZE (L0_REGNUM)); + target_read_memory (*(CORE_ADDR *) & registers[REGISTER_BYTE (SP_REGNUM)], + ®isters[REGISTER_BYTE (L0_REGNUM)], + 16 * REGISTER_RAW_SIZE (L0_REGNUM)); for (i = L0_REGNUM; i <= I7_REGNUM; i++) register_valid[i] = 1; } else if (regno >= L0_REGNUM && regno <= I7_REGNUM) { - CORE_ADDR sp = *(CORE_ADDR*)®isters[REGISTER_BYTE (SP_REGNUM)]; + CORE_ADDR sp = *(CORE_ADDR *) & registers[REGISTER_BYTE (SP_REGNUM)]; i = REGISTER_BYTE (regno); if (register_valid[regno]) - printf_unfiltered("register %d valid and read\n", regno); + printf_unfiltered ("register %d valid and read\n", regno); target_read_memory (sp + i - REGISTER_BYTE (L0_REGNUM), ®isters[i], REGISTER_RAW_SIZE (regno)); register_valid[regno] = 1; @@ -157,7 +159,7 @@ store_inferior_registers (regno) { wanna_store = FP_REGS; } - else + else { if (regno == SP_REGNUM) wanna_store = INT_REGS + STACK_REGS; @@ -191,117 +193,124 @@ store_inferior_registers (regno) if (wanna_store & STACK_REGS) { - CORE_ADDR sp = *(CORE_ADDR *)®isters[REGISTER_BYTE (SP_REGNUM)]; + CORE_ADDR sp = *(CORE_ADDR *) & registers[REGISTER_BYTE (SP_REGNUM)]; if (regno < 0 || regno == SP_REGNUM) { - if (!register_valid[L0_REGNUM+5]) abort(); - target_write_memory (sp, + if (!register_valid[L0_REGNUM + 5]) + abort (); + target_write_memory (sp, ®isters[REGISTER_BYTE (L0_REGNUM)], - 16*REGISTER_RAW_SIZE (L0_REGNUM)); + 16 * REGISTER_RAW_SIZE (L0_REGNUM)); } else { - if (!register_valid[regno]) abort(); + if (!register_valid[regno]) + abort (); target_write_memory (sp + REGISTER_BYTE (regno) - REGISTER_BYTE (L0_REGNUM), ®isters[REGISTER_BYTE (regno)], REGISTER_RAW_SIZE (regno)); } - + } if (wanna_store & INT_REGS) { - if (!register_valid[G1_REGNUM]) abort(); + if (!register_valid[G1_REGNUM]) + abort (); memcpy (&inferior_registers.r_g1, ®isters[REGISTER_BYTE (G1_REGNUM)], 15 * REGISTER_RAW_SIZE (G1_REGNUM)); inferior_registers.r_ps = - *(int *)®isters[REGISTER_BYTE (PS_REGNUM)]; + *(int *) ®isters[REGISTER_BYTE (PS_REGNUM)]; inferior_registers.r_pc = - *(int *)®isters[REGISTER_BYTE (PC_REGNUM)]; + *(int *) ®isters[REGISTER_BYTE (PC_REGNUM)]; inferior_registers.r_npc = - *(int *)®isters[REGISTER_BYTE (NPC_REGNUM)]; + *(int *) ®isters[REGISTER_BYTE (NPC_REGNUM)]; inferior_registers.r_y = - *(int *)®isters[REGISTER_BYTE (Y_REGNUM)]; + *(int *) ®isters[REGISTER_BYTE (Y_REGNUM)]; if (0 != ptrace (PTRACE_SETREGS, inferior_pid, - (PTRACE_ARG3_TYPE) &inferior_registers, 0)) - perror("ptrace_setregs"); + (PTRACE_ARG3_TYPE) & inferior_registers, 0)) + perror ("ptrace_setregs"); } if (wanna_store & FP_REGS) { - if (!register_valid[FP0_REGNUM+9]) abort(); + if (!register_valid[FP0_REGNUM + 9]) + abort (); memcpy (&inferior_fp_registers, ®isters[REGISTER_BYTE (FP0_REGNUM)], sizeof inferior_fp_registers.fpu_fr); - memcpy (&inferior_fp_registers.Fpu_fsr, + memcpy (&inferior_fp_registers.Fpu_fsr, ®isters[REGISTER_BYTE (FPS_REGNUM)], sizeof (FPU_FSR_TYPE)); if (0 != - ptrace (PTRACE_SETFPREGS, inferior_pid, - (PTRACE_ARG3_TYPE) &inferior_fp_registers, 0)) - perror("ptrace_setfpregs"); + ptrace (PTRACE_SETFPREGS, inferior_pid, + (PTRACE_ARG3_TYPE) & inferior_fp_registers, 0)) + perror ("ptrace_setfpregs"); } } static void fetch_core_registers (core_reg_sect, core_reg_size, which, ignore) - char *core_reg_sect; - unsigned core_reg_size; - int which; - CORE_ADDR ignore; /* reg addr, unused in this version */ + char *core_reg_sect; + unsigned core_reg_size; + int which; + CORE_ADDR ignore; /* reg addr, unused in this version */ { - if (which == 0) { + if (which == 0) + { - /* Integer registers */ + /* Integer registers */ #define gregs ((struct regs *)core_reg_sect) - /* G0 *always* holds 0. */ - *(int *)®isters[REGISTER_BYTE (0)] = 0; - - /* The globals and output registers. */ - memcpy (®isters[REGISTER_BYTE (G1_REGNUM)], &gregs->r_g1, - 15 * REGISTER_RAW_SIZE (G1_REGNUM)); - *(int *)®isters[REGISTER_BYTE (PS_REGNUM)] = gregs->r_ps; - *(int *)®isters[REGISTER_BYTE (PC_REGNUM)] = gregs->r_pc; - *(int *)®isters[REGISTER_BYTE (NPC_REGNUM)] = gregs->r_npc; - *(int *)®isters[REGISTER_BYTE (Y_REGNUM)] = gregs->r_y; - - /* My best guess at where to get the locals and input - registers is exactly where they usually are, right above - the stack pointer. If the core dump was caused by a bus error - from blowing away the stack pointer (as is possible) then this - won't work, but it's worth the try. */ - { - int sp; + /* G0 *always* holds 0. */ + *(int *) ®isters[REGISTER_BYTE (0)] = 0; - sp = *(int *)®isters[REGISTER_BYTE (SP_REGNUM)]; - if (0 != target_read_memory (sp, ®isters[REGISTER_BYTE (L0_REGNUM)], - 16 * REGISTER_RAW_SIZE (L0_REGNUM))) - { - /* fprintf_unfiltered so user can still use gdb */ - fprintf_unfiltered (gdb_stderr, - "Couldn't read input and local registers from core file\n"); - } + /* The globals and output registers. */ + memcpy (®isters[REGISTER_BYTE (G1_REGNUM)], &gregs->r_g1, + 15 * REGISTER_RAW_SIZE (G1_REGNUM)); + *(int *) ®isters[REGISTER_BYTE (PS_REGNUM)] = gregs->r_ps; + *(int *) ®isters[REGISTER_BYTE (PC_REGNUM)] = gregs->r_pc; + *(int *) ®isters[REGISTER_BYTE (NPC_REGNUM)] = gregs->r_npc; + *(int *) ®isters[REGISTER_BYTE (Y_REGNUM)] = gregs->r_y; + + /* My best guess at where to get the locals and input + registers is exactly where they usually are, right above + the stack pointer. If the core dump was caused by a bus error + from blowing away the stack pointer (as is possible) then this + won't work, but it's worth the try. */ + { + int sp; + + sp = *(int *) ®isters[REGISTER_BYTE (SP_REGNUM)]; + if (0 != target_read_memory (sp, ®isters[REGISTER_BYTE (L0_REGNUM)], + 16 * REGISTER_RAW_SIZE (L0_REGNUM))) + { + /* fprintf_unfiltered so user can still use gdb */ + fprintf_unfiltered (gdb_stderr, + "Couldn't read input and local registers from core file\n"); + } + } } - } else if (which == 2) { + else if (which == 2) + { - /* Floating point registers */ + /* Floating point registers */ #define fpuregs ((struct fpu *) core_reg_sect) - if (core_reg_size >= sizeof (struct fpu)) - { - memcpy (®isters[REGISTER_BYTE (FP0_REGNUM)], fpuregs->fpu_regs, - sizeof (fpuregs->fpu_regs)); - memcpy (®isters[REGISTER_BYTE (FPS_REGNUM)], &fpuregs->fpu_fsr, - sizeof (FPU_FSR_TYPE)); - } - else - fprintf_unfiltered (gdb_stderr, "Couldn't read float regs from core file\n"); - } + if (core_reg_size >= sizeof (struct fpu)) + { + memcpy (®isters[REGISTER_BYTE (FP0_REGNUM)], fpuregs->fpu_regs, + sizeof (fpuregs->fpu_regs)); + memcpy (®isters[REGISTER_BYTE (FPS_REGNUM)], &fpuregs->fpu_fsr, + sizeof (FPU_FSR_TYPE)); + } + else + fprintf_unfiltered (gdb_stderr, "Couldn't read float regs from core file\n"); + } } int @@ -309,8 +318,8 @@ kernel_u_size () { return (sizeof (struct user)); } - + /* Register that we are able to handle sparc core file formats. FIXME: is this really bfd_target_unknown_flavour? */ |