diff options
author | Stu Grossman <grossman@cygnus> | 1992-06-19 22:43:49 +0000 |
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committer | Stu Grossman <grossman@cygnus> | 1992-06-19 22:43:49 +0000 |
commit | 7da1e27dd4814e6e718404f294d3ef63e15054e2 (patch) | |
tree | 88de18c03a71c4f3fca192c8d9d597842c686ff6 /gdb/hppa-coredep.c | |
parent | 9aa448333dc03c53f4ed8826251f813123705217 (diff) | |
download | binutils-gdb-7da1e27dd4814e6e718404f294d3ef63e15054e2.tar.gz |
* configure.in, dbxread.c, hppa-coredep.c, hppa-pinsn.c,
hppabsd-core.c, hppabsd-tdep.c, hppabsd-xdep.c, hppahpux-tdep.c,
hppahpux-xdep.c, munch, partial-stab.h, tm-hppabsd.h,
tm-hppahpux.h, xm-hppabsd.h, xm-hppahpux.h: HPPA merge.
Diffstat (limited to 'gdb/hppa-coredep.c')
-rw-r--r-- | gdb/hppa-coredep.c | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/gdb/hppa-coredep.c b/gdb/hppa-coredep.c new file mode 100644 index 00000000000..7e1031e49f3 --- /dev/null +++ b/gdb/hppa-coredep.c @@ -0,0 +1,121 @@ +/* Extract registers from a "standard" core file, for GDB. + Copyright (C) 1988-1991 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., 675 Mass Ave, Cambridge, MA 02139, USA. */ + +/* core.c is supposed to be the more machine-independent aspects of this; + this file is more machine-specific. */ + +#include "defs.h" +#include "gdbcore.h" +#include <stdio.h> + +/* These are needed on various systems to expand REGISTER_U_ADDR. */ +#include <sys/types.h> +#include <sys/param.h> +#include <sys/dir.h> +#include <sys/file.h> +#include <sys/stat.h> +#include <sys/user.h> +#ifndef USG +#include <sys/ptrace.h> +#endif + + +/* Extract the register values out of the core file and store + them where `read_register' will find them. + + CORE_REG_SECT points to the register values themselves, read into memory. + CORE_REG_SIZE is the size of that area. + WHICH says which set of registers we are handling (0 = int, 2 = float + on machines where they are discontiguous). + REG_ADDR is the offset from u.u_ar0 to the register values relative to + core_reg_sect. This is used with old-fashioned core files to + locate the registers in a large upage-plus-stack ".reg" section. + Original upage address X is at location core_reg_sect+x+reg_addr. + */ + +void +fetch_core_registers (core_reg_sect, core_reg_size, which, reg_addr) + char *core_reg_sect; + unsigned core_reg_size; + int which; + unsigned reg_addr; +{ + register int regno; + register unsigned int addr; + int bad_reg = -1; + register reg_ptr = -reg_addr; /* Original u.u_ar0 is -reg_addr. */ + + /* If u.u_ar0 was an absolute address in the core file, relativize it now, + so we can use it as an offset into core_reg_sect. When we're done, + "register 0" will be at core_reg_sect+reg_ptr, and we can use + register_addr to offset to the other registers. If this is a modern + core file without a upage, reg_ptr will be zero and this is all a big + NOP. */ + if (reg_ptr > core_reg_size) + reg_ptr -= KERNEL_U_ADDR; + if (reg_ptr > core_reg_size) + fprintf (stderr, "Can't find registers in core file\n"); + + for (regno = 0; regno < NUM_REGS; regno++) + { + addr = register_addr (regno, reg_ptr); + if (addr >= core_reg_size) { + if (bad_reg < 0) + bad_reg = regno; + } else { + if (regno == PCOQ_HEAD_REGNUM || regno == PCOQ_TAIL_REGNUM) + core_reg_sect[addr +3] &= ~0x3; + supply_register (regno, core_reg_sect + addr); + } + } + if (bad_reg > 0) + { + error ("Register %s not found in core file.", reg_names[bad_reg]); + } +} + + +#ifdef REGISTER_U_ADDR + +/* Return the address in the core dump or inferior of register REGNO. + BLOCKEND is the address of the end of the user structure. */ + +unsigned int +register_addr (regno, blockend) + int regno; + int blockend; +{ + int addr; + + if (regno < 0 || regno >= NUM_REGS) + error ("Invalid register number %d.", regno); + + REGISTER_U_ADDR (addr, blockend, regno); + + return addr; +} + +#endif /* REGISTER_U_ADDR */ + + + + + + + |