* amd64obsd-tdep.c, amd64obsd-nat.c: New files.
* Makefile.in (amd64obsd-nat.o, amd64obsd-tdep.o): New dependencies. * configure.host: Add x86_64-*-openbsd*. * configure.tgt: Add x86_64-*-openbsd*. * config/i386/obsd64.mt, config/i386/obsd64.mh: New files.
This commit is contained in:
Mark Kettenis
parent
c43f4bec91
commit
e2879ccb3d
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@ -1,5 +1,12 @@
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2004-02-18 Mark Kettenis <kettenis@gnu.org>
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* amd64obsd-tdep.c, amd64obsd-nat.c: New files.
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* Makefile.in (amd64obsd-nat.o, amd64obsd-tdep.o): New
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dependencies.
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* configure.host: Add x86_64-*-openbsd*.
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* configure.tgt: Add x86_64-*-openbsd*.
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* config/i386/obsd64.mt, config/i386/obsd64.mh: New files.
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* tui/tui.c: Don't include <malloc.h>.
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* Makefile.in (ALLDEPFILES): Add amd64-nat.c, amd64bsd-nat.c,
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@ -1489,6 +1489,10 @@ amd64nbsd-nat.o: amd64nbsd-nat.c $(defs_h) $(gdb_assert_h) $(x86_64_tdep_h) \
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amd64nbsd-tdep.o: amd64nbsd-tdep.c $(defs_h) $(arch_utils_h) $(frame_h) \
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$(gdbcore_h) $(osabi_h) $(gdb_assert_h) $(nbsd_tdep_h) \
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$(x86_64_tdep_h)
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amd64obsd-nat.o: amd64nbsd-nat.c $(defs_h) $(gdb_assert_h) $(x86_64_tdep_h) \
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$(amd64_nat_h)
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amd64obsd-tdep.o: amd64nbsd-tdep.c $(defs_h) $(arch_utils_h) $(frame_h) \
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$(gdbcore_h) $(osabi_h) $(gdb_assert_h) $(x86_64_tdep_h)
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annotate.o: annotate.c $(defs_h) $(annotate_h) $(value_h) $(target_h) \
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$(gdbtypes_h) $(breakpoint_h)
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arch-utils.o: arch-utils.c $(defs_h) $(arch_utils_h) $(buildsym_h) \
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@ -0,0 +1,68 @@
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/* Native-dependent code for OpenBSD/amd64.
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Copyright 2003, 2004 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include "defs.h"
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#include "gdb_assert.h"
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#include "x86-64-tdep.h"
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#include "amd64-nat.h"
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/* Mapping between the general-purpose registers in OpenBSD/amd64
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`struct reg' format and GDB's register cache layout for
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OpenBSD/i386.
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Note that most (if not all) OpenBSD/amd64 registers are 64-bit,
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while the OpenBSD/i386 registers are all 32-bit, but since we're
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little-endian we get away with that. */
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/* From <machine/reg.h>. */
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static int amd64obsd32_r_reg_offset[] =
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{
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14 * 8, /* %eax */
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3 * 8, /* %ecx */
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2 * 8, /* %edx */
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13 * 8, /* %ebx */
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15 * 8, /* %esp */
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12 * 8, /* %ebp */
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1 * 8, /* %esi */
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0 * 8, /* %edi */
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16 * 8, /* %eip */
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17 * 8, /* %eflags */
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18 * 8, /* %cs */
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19 * 8, /* %ss */
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20 * 8, /* %ds */
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21 * 8, /* %es */
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22 * 8, /* %fs */
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23 * 8 /* %gs */
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};
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/* Provide a prototype to silence -Wmissing-prototypes. */
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void _initialize_amd64obsd_nat (void);
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void
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_initialize_amd64obsd_nat (void)
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{
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amd64_native_gregset32_reg_offset = amd64obsd32_r_reg_offset;
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amd64_native_gregset32_num_regs = ARRAY_SIZE (amd64obsd32_r_reg_offset);
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amd64_native_gregset64_reg_offset = amd64obsd_r_reg_offset;
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}
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@ -0,0 +1,170 @@
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/* Target-dependent code for OpenBSD/amd64.
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Copyright 2003, 2004 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include "defs.h"
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#include "frame.h"
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#include "gdbcore.h"
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#include "osabi.h"
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#include "target.h"
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#include "gdb_assert.h"
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#include "gdb_string.h"
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#include "x86-64-tdep.h"
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/* Support for signal handlers. */
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static const int amd64obsd_page_size = 4096;
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static int
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amd64obsd_pc_in_sigtramp (CORE_ADDR pc, char *name)
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{
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CORE_ADDR start_pc = (pc & ~(amd64obsd_page_size - 1));
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const char sigreturn[] =
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{
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0x48, 0xc7, 0xc0,
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0x67, 0x00, 0x00, 0x00, /* movq $SYS_sigreturn, %rax */
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0x0f, 0x05 /* syscall */
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};
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char *buf;
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if (name)
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return 0;
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/* If we can't read the instructions at START_PC, return zero. */
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buf = alloca (sizeof sigreturn);
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if (target_read_memory (start_pc + 0x7, buf, sizeof sigreturn))
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return 0;
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/* Check for sigreturn(2). */
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if (memcmp (buf, sigreturn, sizeof sigreturn))
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return 0;
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return 1;
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}
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/* Assuming NEXT_FRAME is for a frame following a BSD sigtramp
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routine, return the address of the associated sigcontext structure. */
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static CORE_ADDR
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amd64obsd_sigcontext_addr (struct frame_info *next_frame)
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{
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/* The %rsp register points at `struct sigcontext' upon entry of a
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signal trampoline. */
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return frame_unwind_register_unsigned (next_frame, X86_64_RSP_REGNUM);
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}
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/* OpenBSD 3.5 or later. */
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/* Mapping between the general-purpose registers in `struct reg'
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format and GDB's register cache layout. */
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/* From <machine/reg.h>. Used for ptrace(2), but not for core dumps. */
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int amd64obsd_r_reg_offset[] =
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{
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14 * 8, /* %rax */
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13 * 8, /* %rbx */
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3 * 8, /* %rcx */
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2 * 8, /* %rdx */
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1 * 8, /* %rsi */
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0 * 8, /* %rdi */
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12 * 8, /* %rbp */
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15 * 8, /* %rsp */
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4 * 8, /* %r8 .. */
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5 * 8,
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6 * 8,
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7 * 8,
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8 * 8,
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9 * 8,
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10 * 8,
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11 * 8, /* ... %r15 */
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16 * 8, /* %rip */
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17 * 8, /* %eflags */
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18 * 8, /* %cs */
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19 * 8, /* %ss */
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20 * 8, /* %ds */
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21 * 8, /* %es */
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22 * 8, /* %fs */
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23 * 8 /* %gs */
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};
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/* From <machine/signal.h>. Also used for core dumps. */
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static int amd64obsd_sc_reg_offset[] =
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{
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14 * 8, /* %rax */
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13 * 8, /* %rbx */
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3 * 8, /* %rcx */
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2 * 8, /* %rdx */
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1 * 8, /* %rsi */
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0 * 8, /* %rdi */
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12 * 8, /* %rbp */
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24 * 8, /* %rsp */
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4 * 8, /* %r8 ... */
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5 * 8,
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6 * 8,
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7 * 8,
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8 * 8,
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9 * 8,
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10 * 8,
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11 * 8, /* ... %r15 */
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21 * 8, /* %rip */
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23 * 8, /* %eflags */
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22 * 8, /* %cs */
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25 * 8, /* %ss */
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18 * 8, /* %ds */
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17 * 8, /* %es */
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16 * 8, /* %fs */
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15 * 8 /* %gs */
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};
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static void
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amd64obsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
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{
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struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
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/* Initialize general-purpose register set details first. */
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tdep->gregset_reg_offset = amd64obsd_sc_reg_offset;
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tdep->gregset_num_regs = ARRAY_SIZE (amd64obsd_sc_reg_offset);
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tdep->sizeof_gregset = 26 * 8;
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x86_64_init_abi (info, gdbarch);
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tdep->jb_pc_offset = 7 * 8;
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set_gdbarch_pc_in_sigtramp (gdbarch, amd64obsd_pc_in_sigtramp);
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tdep->sigcontext_addr = amd64obsd_sigcontext_addr;
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tdep->sc_reg_offset = amd64obsd_sc_reg_offset;
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tdep->sc_num_regs = ARRAY_SIZE (amd64obsd_sc_reg_offset);
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}
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/* Provide a prototype to silence -Wmissing-prototypes. */
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void _initialize_amd64obsd_tdep (void);
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void
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_initialize_amd64obsd_ndep (void)
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{
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/* The OpenBSD/amd64 native dependent code makes this assumption. */
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gdb_assert (ARRAY_SIZE (amd64obsd_r_reg_offset) == X86_64_NUM_GREGS);
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gdbarch_register_osabi (bfd_arch_i386, bfd_mach_x86_64,
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GDB_OSABI_OPENBSD_ELF, amd64obsd_init_abi);
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}
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@ -0,0 +1,7 @@
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# Host: OpenBSD/amd64
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XM_FILE= xm-i386.h
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NAT_FILE= nm-nbsd.h
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# NOTE: Do not spread NATDEPFILES over several lines - it hurts BSD make.
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NATDEPFILES= fork-child.o infptrace.o inftarg.o solib.o solib-svr4.o solib-legacy.o corelow.o amd64-nat.o amd64bsd-nat.o amd64obsd-nat.o
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@ -0,0 +1,2 @@
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# Target: OpenBSD/amd64
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TDEPFILES= x86-64-tdep.o amd64obsd-tdep.o i386-tdep.o i387-tdep.o
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@ -147,6 +147,7 @@ vax-*-ultrix*) gdb_host=vaxult ;;
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x86_64-*-linux*) gdb_host=x86-64linux ;;
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x86_64-*-freebsd*) gdb_host=fbsd64 ;;
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x86_64-*-netbsd*) gdb_host=nbsd64 ;;
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x86_64-*-openbsd*) gdb_host=obsd64 ;;
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m32r*-*-linux*) gdb_host=linux ;;
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@ -217,6 +217,7 @@ x86_64-*-linux*) gdb_target=x86-64linux
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build_gdbserver=yes
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;;
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x86_64-*-netbsd*) gdb_target=nbsd64 ;;
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x86_64-*-openbsd*) gdb_target=obsd64 ;;
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esac
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