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Diffstat (limited to 'gdb/ns32knbsd-nat.c')
-rw-r--r--gdb/ns32knbsd-nat.c367
1 files changed, 0 insertions, 367 deletions
diff --git a/gdb/ns32knbsd-nat.c b/gdb/ns32knbsd-nat.c
deleted file mode 100644
index 520dfe4..0000000
--- a/gdb/ns32knbsd-nat.c
+++ /dev/null
@@ -1,367 +0,0 @@
-/* Functions specific to running gdb native on an ns32k running NetBSD
-
- Copyright 1989, 1992, 1993, 1994, 1996, 1998, 1999, 2000, 2001,
- 2004 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 <sys/types.h>
-#include <sys/ptrace.h>
-#include <machine/reg.h>
-#include <machine/frame.h>
-#include <machine/pcb.h>
-
-#include "defs.h"
-#include "inferior.h"
-#include "target.h"
-#include "gdbcore.h"
-#include "regcache.h"
-
-#define RF(dst, src) \
- memcpy(&deprecated_registers[DEPRECATED_REGISTER_BYTE(dst)], &src, sizeof(src))
-
-#define RS(src, dst) \
- memcpy(&dst, &deprecated_registers[DEPRECATED_REGISTER_BYTE(src)], sizeof(dst))
-
-void
-fetch_inferior_registers (int regno)
-{
- struct reg inferior_registers;
- struct fpreg inferior_fpregisters;
-
- ptrace (PT_GETREGS, PIDGET (inferior_ptid),
- (PTRACE_TYPE_ARG3) & inferior_registers, 0);
- ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
- (PTRACE_TYPE_ARG3) & inferior_fpregisters, 0);
-
- RF (R0_REGNUM + 0, inferior_registers.r_r0);
- RF (R0_REGNUM + 1, inferior_registers.r_r1);
- RF (R0_REGNUM + 2, inferior_registers.r_r2);
- RF (R0_REGNUM + 3, inferior_registers.r_r3);
- RF (R0_REGNUM + 4, inferior_registers.r_r4);
- RF (R0_REGNUM + 5, inferior_registers.r_r5);
- RF (R0_REGNUM + 6, inferior_registers.r_r6);
- RF (R0_REGNUM + 7, inferior_registers.r_r7);
-
- RF (SP_REGNUM, inferior_registers.r_sp);
- RF (DEPRECATED_FP_REGNUM, inferior_registers.r_fp);
- RF (PC_REGNUM, inferior_registers.r_pc);
- RF (PS_REGNUM, inferior_registers.r_psr);
-
- RF (FPS_REGNUM, inferior_fpregisters.r_fsr);
- RF (FP0_REGNUM + 0, inferior_fpregisters.r_freg[0]);
- RF (FP0_REGNUM + 2, inferior_fpregisters.r_freg[2]);
- RF (FP0_REGNUM + 4, inferior_fpregisters.r_freg[4]);
- RF (FP0_REGNUM + 6, inferior_fpregisters.r_freg[6]);
- RF (LP0_REGNUM + 1, inferior_fpregisters.r_freg[1]);
- RF (LP0_REGNUM + 3, inferior_fpregisters.r_freg[3]);
- RF (LP0_REGNUM + 5, inferior_fpregisters.r_freg[5]);
- RF (LP0_REGNUM + 7, inferior_fpregisters.r_freg[7]);
- deprecated_registers_fetched ();
-}
-
-void
-store_inferior_registers (int regno)
-{
- struct reg inferior_registers;
- struct fpreg inferior_fpregisters;
-
- RS (R0_REGNUM + 0, inferior_registers.r_r0);
- RS (R0_REGNUM + 1, inferior_registers.r_r1);
- RS (R0_REGNUM + 2, inferior_registers.r_r2);
- RS (R0_REGNUM + 3, inferior_registers.r_r3);
- RS (R0_REGNUM + 4, inferior_registers.r_r4);
- RS (R0_REGNUM + 5, inferior_registers.r_r5);
- RS (R0_REGNUM + 6, inferior_registers.r_r6);
- RS (R0_REGNUM + 7, inferior_registers.r_r7);
-
- RS (SP_REGNUM, inferior_registers.r_sp);
- RS (DEPRECATED_FP_REGNUM, inferior_registers.r_fp);
- RS (PC_REGNUM, inferior_registers.r_pc);
- RS (PS_REGNUM, inferior_registers.r_psr);
-
- RS (FPS_REGNUM, inferior_fpregisters.r_fsr);
- RS (FP0_REGNUM + 0, inferior_fpregisters.r_freg[0]);
- RS (FP0_REGNUM + 2, inferior_fpregisters.r_freg[2]);
- RS (FP0_REGNUM + 4, inferior_fpregisters.r_freg[4]);
- RS (FP0_REGNUM + 6, inferior_fpregisters.r_freg[6]);
- RS (LP0_REGNUM + 1, inferior_fpregisters.r_freg[1]);
- RS (LP0_REGNUM + 3, inferior_fpregisters.r_freg[3]);
- RS (LP0_REGNUM + 5, inferior_fpregisters.r_freg[5]);
- RS (LP0_REGNUM + 7, inferior_fpregisters.r_freg[7]);
-
- ptrace (PT_SETREGS, PIDGET (inferior_ptid),
- (PTRACE_TYPE_ARG3) & inferior_registers, 0);
- ptrace (PT_SETFPREGS, PIDGET (inferior_ptid),
- (PTRACE_TYPE_ARG3) & inferior_fpregisters, 0);
-}
-
-
-/* XXX - Add this to machine/regs.h instead? */
-struct coreregs
-{
- struct reg intreg;
- struct fpreg freg;
-};
-
-/* Get registers from a core file. REG_ADDR is unused. */
-static void
-fetch_core_registers (char *core_reg_sect, unsigned core_reg_size, int which,
- unsigned int reg_addr)
-{
- struct coreregs *core_reg;
-
- core_reg = (struct coreregs *) core_reg_sect;
-
- /*
- * We have *all* registers
- * in the first core section.
- * Ignore which.
- */
-
- if (core_reg_size < sizeof (*core_reg))
- {
- fprintf_unfiltered (gdb_stderr, "Couldn't read regs from core file\n");
- return;
- }
-
- /* Integer registers */
- RF (R0_REGNUM + 0, core_reg->intreg.r_r0);
- RF (R0_REGNUM + 1, core_reg->intreg.r_r1);
- RF (R0_REGNUM + 2, core_reg->intreg.r_r2);
- RF (R0_REGNUM + 3, core_reg->intreg.r_r3);
- RF (R0_REGNUM + 4, core_reg->intreg.r_r4);
- RF (R0_REGNUM + 5, core_reg->intreg.r_r5);
- RF (R0_REGNUM + 6, core_reg->intreg.r_r6);
- RF (R0_REGNUM + 7, core_reg->intreg.r_r7);
-
- RF (SP_REGNUM, core_reg->intreg.r_sp);
- RF (DEPRECATED_FP_REGNUM, core_reg->intreg.r_fp);
- RF (PC_REGNUM, core_reg->intreg.r_pc);
- RF (PS_REGNUM, core_reg->intreg.r_psr);
-
- /* Floating point registers */
- RF (FPS_REGNUM, core_reg->freg.r_fsr);
- RF (FP0_REGNUM + 0, core_reg->freg.r_freg[0]);
- RF (FP0_REGNUM + 2, core_reg->freg.r_freg[2]);
- RF (FP0_REGNUM + 4, core_reg->freg.r_freg[4]);
- RF (FP0_REGNUM + 6, core_reg->freg.r_freg[6]);
- RF (LP0_REGNUM + 1, core_reg->freg.r_freg[1]);
- RF (LP0_REGNUM + 3, core_reg->freg.r_freg[3]);
- RF (LP0_REGNUM + 5, core_reg->freg.r_freg[5]);
- RF (LP0_REGNUM + 7, core_reg->freg.r_freg[7]);
- deprecated_registers_fetched ();
-}
-
-/* Register that we are able to handle ns32knbsd core file formats.
- FIXME: is this really bfd_target_unknown_flavour? */
-
-static struct core_fns nat_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_ns32knbsd_nat (void)
-{
- deprecated_add_core_fns (&nat_core_fns);
-}
-
-
-/*
- * kernel_u_size() is not helpful on NetBSD because
- * the "u" struct is NOT in the core dump file.
- */
-
-#ifdef FETCH_KCORE_REGISTERS
-/*
- * Get registers from a kernel crash dump or live kernel.
- * Called by kcore-nbsd.c:get_kcore_registers().
- */
-void
-fetch_kcore_registers (struct pcb *pcb)
-{
- struct switchframe sf;
- struct reg intreg;
- int dummy;
-
- /* Integer registers */
- if (target_read_memory ((CORE_ADDR) pcb->pcb_ksp, (char *) &sf, sizeof sf))
- error ("Cannot read integer registers.");
-
- /* We use the psr at kernel entry */
- if (target_read_memory ((CORE_ADDR) pcb->pcb_onstack, (char *) &intreg, sizeof intreg))
- error ("Cannot read processor status register.");
-
- dummy = 0;
- RF (R0_REGNUM + 0, dummy);
- RF (R0_REGNUM + 1, dummy);
- RF (R0_REGNUM + 2, dummy);
- RF (R0_REGNUM + 3, sf.sf_r3);
- RF (R0_REGNUM + 4, sf.sf_r4);
- RF (R0_REGNUM + 5, sf.sf_r5);
- RF (R0_REGNUM + 6, sf.sf_r6);
- RF (R0_REGNUM + 7, sf.sf_r7);
-
- dummy = pcb->pcb_kfp + 8;
- RF (SP_REGNUM, dummy);
- RF (DEPRECATED_FP_REGNUM, sf.sf_fp);
- RF (PC_REGNUM, sf.sf_pc);
- RF (PS_REGNUM, intreg.r_psr);
-
- /* Floating point registers */
- RF (FPS_REGNUM, pcb->pcb_fsr);
- RF (FP0_REGNUM + 0, pcb->pcb_freg[0]);
- RF (FP0_REGNUM + 2, pcb->pcb_freg[2]);
- RF (FP0_REGNUM + 4, pcb->pcb_freg[4]);
- RF (FP0_REGNUM + 6, pcb->pcb_freg[6]);
- RF (LP0_REGNUM + 1, pcb->pcb_freg[1]);
- RF (LP0_REGNUM + 3, pcb->pcb_freg[3]);
- RF (LP0_REGNUM + 5, pcb->pcb_freg[5]);
- RF (LP0_REGNUM + 7, pcb->pcb_freg[7]);
- deprecated_registers_fetched ();
-}
-#endif /* FETCH_KCORE_REGISTERS */
-
-void
-clear_regs (void)
-{
- double zero = 0.0;
- int null = 0;
-
- /* Integer registers */
- RF (R0_REGNUM + 0, null);
- RF (R0_REGNUM + 1, null);
- RF (R0_REGNUM + 2, null);
- RF (R0_REGNUM + 3, null);
- RF (R0_REGNUM + 4, null);
- RF (R0_REGNUM + 5, null);
- RF (R0_REGNUM + 6, null);
- RF (R0_REGNUM + 7, null);
-
- RF (SP_REGNUM, null);
- RF (DEPRECATED_FP_REGNUM, null);
- RF (PC_REGNUM, null);
- RF (PS_REGNUM, null);
-
- /* Floating point registers */
- RF (FPS_REGNUM, zero);
- RF (FP0_REGNUM + 0, zero);
- RF (FP0_REGNUM + 2, zero);
- RF (FP0_REGNUM + 4, zero);
- RF (FP0_REGNUM + 6, zero);
- RF (LP0_REGNUM + 0, zero);
- RF (LP0_REGNUM + 1, zero);
- RF (LP0_REGNUM + 2, zero);
- RF (LP0_REGNUM + 3, zero);
- return;
-}
-
-/* Return number of args passed to a frame.
- Can return -1, meaning no way to tell. */
-
-int
-frame_num_args (struct frame_info *fi)
-{
- CORE_ADDR enter_addr;
- CORE_ADDR argp;
- int inst;
- int args;
- int i;
-
- if (read_memory_integer (fi->frame, 4) == 0 && fi->pc < 0x10000)
- {
- /* main is always called with three args */
- return (3);
- }
- enter_addr = ns32k_get_enter_addr (fi->pc);
- if (enter_addr = 0)
- return (-1);
- argp = (enter_addr == 1
- ? DEPRECATED_SAVED_PC_AFTER_CALL (fi)
- : DEPRECATED_FRAME_SAVED_PC (fi));
- for (i = 0; i < 16; i++)
- {
- /*
- * After a bsr gcc may emit the following instructions
- * to remove the arguments from the stack:
- * cmpqd 0,tos - to remove 4 bytes from the stack
- * cmpd tos,tos - to remove 8 bytes from the stack
- * adjsp[bwd] -n - to remove n bytes from the stack
- * Gcc sometimes delays emitting these instructions and
- * may even throw a branch between our feet.
- */
- inst = read_memory_integer (argp, 4);
- args = read_memory_integer (argp + 2, 4);
- if ((inst & 0xff) == 0xea)
- { /* br */
- args = ((inst >> 8) & 0xffffff) | (args << 24);
- if (args & 0x80)
- {
- if (args & 0x40)
- {
- args = ntohl (args);
- }
- else
- {
- args = ntohs (args & 0xffff);
- if (args & 0x2000)
- args |= 0xc000;
- }
- }
- else
- {
- args = args & 0xff;
- if (args & 0x40)
- args |= 0x80;
- }
- argp += args;
- continue;
- }
- if ((inst & 0xffff) == 0xb81f) /* cmpqd 0,tos */
- return (1);
- else if ((inst & 0xffff) == 0xbdc7) /* cmpd tos,tos */
- return (2);
- else if ((inst & 0xfffc) == 0xa57c)
- { /* adjsp[bwd] */
- switch (inst & 3)
- {
- case 0:
- args = ((args & 0xff) + 0x80);
- break;
- case 1:
- args = ((ntohs (args) & 0xffff) + 0x8000);
- break;
- case 3:
- args = -ntohl (args);
- break;
- default:
- return (-1);
- }
- if (args / 4 > 10 || (args & 3) != 0)
- continue;
- return (args / 4);
- }
- argp += 1;
- }
- return (-1);
-}
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