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authorStu Grossman <grossman@cygnus>1992-06-19 22:43:49 +0000
committerStu Grossman <grossman@cygnus>1992-06-19 22:43:49 +0000
commit7da1e27dd4814e6e718404f294d3ef63e15054e2 (patch)
tree88de18c03a71c4f3fca192c8d9d597842c686ff6 /gdb/hppa-coredep.c
parent9aa448333dc03c53f4ed8826251f813123705217 (diff)
downloadbinutils-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.c121
1 files changed, 121 insertions, 0 deletions
diff --git a/gdb/hppa-coredep.c b/gdb/hppa-coredep.c
new file mode 100644
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+++ b/gdb/hppa-coredep.c
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+/* 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 */
+
+
+
+
+
+
+