binutils-gdb/gdb/amd64fbsd-tdep.c

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/* Target-dependent code for FreeBSD/amd64.
Copyright (C) 2003-2016 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 3 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, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "arch-utils.h"
#include "frame.h"
#include "gdbcore.h"
#include "regcache.h"
#include "osabi.h"
Add support for the x86 XSAVE extended state on FreeBSD/x86. Recognize NT_X86_XSTATE notes in FreeBSD process cores. Recent FreeBSD versions include a note containing the XSAVE state for each thread in the process when XSAVE is in use. The note stores a copy of the current XSAVE mask in a reserved section of the machine-defined XSAVE state at the same offset as Linux's NT_X86_XSTATE note. For native processes, use the PT_GETXSTATE_INFO ptrace request to determine if XSAVE is enabled, and if so the active XSAVE state mask (that is, the value of %xcr0 for the target process) as well as the size of XSAVE state area. Use the PT_GETXSTATE and PT_SETXSTATE requests to fetch and store the XSAVE state, respectively, in the BSD x86 native targets. In addition, the FreeBSD amd64 and i386 native targets now include "read_description" target methods to determine the correct x86 target description for the current XSAVE mask. On FreeBSD amd64 this also properly returns an i386 target description for 32-bit binaries which allows the 64-bit GDB to run 32-bit binaries. Note that the ptrace changes are in the BSD native targets, not the FreeBSD-specific native targets since that is where the other ptrace register accesses occur. Of the other BSDs, NetBSD and DragonFly use XSAVE in the kernel but do not currently export the extended state via ptrace(2). OpenBSD does not currently support XSAVE. bfd/ChangeLog: * elf.c (elfcore_grok_note): Recognize NT_X86_XSTATE on FreeBSD. (elfcore_write_xstatereg): Use correct note name on FreeBSD. gdb/ChangeLog: * amd64-tdep.c (amd64_target_description): New function. * amd64-tdep.h: Export amd64_target_description and tdesc_amd64. * amd64bsd-nat.c [PT_GETXSTATE_INFO]: New variable amd64bsd_xsave_len. (amd64bsd_fetch_inferior_registers) [PT_GETXSTATE_INFO]: Handle x86 extended save area. (amd64bsd_store_inferior_registers) [PT_GETXSTATE_INFO]: Likewise. * amd64bsd-nat.h: Export amd64bsd_xsave_len. * amd64fbsd-nat.c (amd64fbsd_read_description): New function. (_initialize_amd64fbsd_nat): Set "to_read_description" to "amd64fbsd_read_description". * amd64fbsd-tdep.c (amd64fbsd_core_read_description): New function. (amd64fbsd_supply_xstateregset): New function. (amd64fbsd_collect_xstateregset): New function. Add "amd64fbsd_xstateregset". (amd64fbsd_iterate_over_regset_sections): New function. (amd64fbsd_init_abi): Set "xsave_xcr0_offset" to "I386_FBSD_XSAVE_XCR0_OFFSET". Add "iterate_over_regset_sections" gdbarch method. Add "core_read_description" gdbarch method. * i386-tdep.c (i386_target_description): New function. * i386-tdep.h: Export i386_target_description and tdesc_i386. * i386bsd-nat.c [PT_GETXSTATE_INFO]: New variable i386bsd_xsave_len. (i386bsd_fetch_inferior_registers) [PT_GETXSTATE_INFO]: Handle x86 extended save area. (i386bsd_store_inferior_registers) [PT_GETXSTATE_INFO]: Likewise. * i386bsd-nat.h: Export i386bsd_xsave_len. * i386fbsd-nat.c (i386fbsd_read_description): New function. (_initialize_i386fbsd_nat): Set "to_read_description" to "i386fbsd_read_description". * i386fbsd-tdep.c (i386fbsd_core_read_xcr0): New function. (i386fbsd_core_read_description): New function. (i386fbsd_supply_xstateregset): New function. (i386fbsd_collect_xstateregset): New function. Add "i386fbsd_xstateregset". (i386fbsd_iterate_over_regset_sections): New function. (i386fbsd4_init_abi): Set "xsave_xcr0_offset" to "I386_FBSD_XSAVE_XCR0_OFFSET". Add "iterate_over_regset_sections" gdbarch method. Add "core_read_description" gdbarch method. * i386fbsd-tdep.h: New file.
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#include "regset.h"
#include "i386fbsd-tdep.h"
#include "x86-xstate.h"
2004-02-25 21:59:12 +01:00
#include "amd64-tdep.h"
#include "bsd-uthread.h"
#include "fbsd-tdep.h"
* amd64fbsd-tdep.c: Include "solib-svr4.h". (amd64fbsd_init_abi): Set link map offsets. * amd64nbsd-tdep.c: Include "slib-svr4.h". (amd64nbsd_init_abi): Set link map offsets. * amd64obsd-tdep.c: Include "solib-svr4.h". (amd64obsd_init_abi): Set link map offsets. * i386fbsd-tdep.c: Include "solib-svr4.h". (i386fbsd_init_abi): Set link map offsets. * i386nbsd-tdep.c: Include "solib-svr4.h". (i386nbsdelf_init_abi): Set link map offsets. * Makefile.in (amd64fbsd-tdep.o, amd64nbsd-tdep.o) (amd64obsd-tdep.o, i386fbsd-tdep.o): Update dependencies. * config/i386/fbsd.mh (NATDEPFILES): Remove solib.o, solib-svr4.o, solib-legacy.o and core-aout.o. Reformat. * config/i386/fbsd64.mh (NATDEPFILES): Remove solib.o, solib-svr4.o, solib-legacy.o. Reformat. * config/i386/nbsdaout.mh (NATDEPFILES): Add solib.o. Reformat. * config/i386/nbsdelf.mh: Reformat. * config/i386/nbsd64.mh (NATDEPFILES): Remove solib.o, solib-svr4.o, solib-legacy.o and corelow.o. * config/i386/obsd.mh, config/i386/obsdaout.mh: Reformat. * config/i386/obsd64.mh (NATDEPFILES): Remove solib.o, solib-svr4.o, solib-legacy.o and corelow.o. Reformat. * config/i386/fbsd.mt (TDEPFILES): Add solib.o, solib-svr4.o. * config/i386/fbsd64.mt (TDEPFILES): Add solib.o, solib-svr4.o. (TM_FILE): Set to tm-fbsd.h. * config/i386/nbsd.mt (TDEPFILES): Reformat. * config/i386/nbsd64.mt (TDEPFILES): Add corelow.o, solib.o and solib-svr4.o. * config/i386/obsd.mt (TDEPFILES): Add corelow.o, solib.o and solib-svr4.o. (TM_FILE): Set to nm-nbsd.h. * config/i386/nm-fbsd.h: Update copyright year. Tweak comments. Simplify shared library support. Don't include "elf/common.h". (SVR4_SHARED_LIBS): Don't define. * config/i386/nm-fbsd64.h: Update copyright year. Don't include "solib.h". * config/i386/nm-nbsd.h, config/i386/nm-nbsdaout.h, config/i386/nm-obsd.h: Update copyright year. Tweak comments. * config/i386/tm-fbsd.h: Update copyright tear. Tweak comments. Don't include "i386/tm-i386.h". Include "solib.h". * config/i386/tm-nbsd.h: Update copyright year. Tweak comments. Don't include "i386/tm-i386.h". * config/i386/xm-i386.h: Update copyright year. Tweak comments. * config/i386/xm-nbsd.h: Update copyright year. Tweak comments. Include "i386/xm-i386.h". (HOST_LONG_DOUBLE_FORMAT): Remove.
2004-02-22 17:20:22 +01:00
#include "solib-svr4.h"
/* Support for signal handlers. */
Rework signal frame probing for FreeBSD/x86 - Use signal frame sniffers that look for the signal trampoline instruction sequence to detect most signal frames. - FreeBSD kernels between 9.2 and 10.1 inclusive do not include the signal trampoline code in process core dumps. To detect signal frames for core dumps under these kernels, use the kern.proc.sigtramp.<pid> sysctl to fetch the location of the signal trampoline in the gdb process and assume that PC values within this location are signal frames. This depends on that location being identical for all binaries. gdb/ChangeLog: 2015-02-25 John Baldwin <jhb@FreeBSD.org> * amd64fbsd-nat.c: Include sys/user.h. (_initialize_amd64fbsd_nat): Use the KERN_PROC_SIGTRAMP sysctl instead of KERN_PS_STRINGS to locate the signal trampoline. * i386fbsd-nat.c: Include sys/user.h. (_initialize_i386fbsd_nat): Use the KERN_PROC_SIGTRAMP sysctl instead of KERN_PS_STRINGS to locate the signal trampoline. * amd64fbsd-tdep.c (amd64fbsd_sigtramp_code): New. (amd64fbsd_sigtramp_p): New. (amd64fbsd_sigtramp_start_addr, amd64fbsd_sigtramp_end_addr): No longer set default values. (amd64fbsd_init_abi): Set "sigtramp_p" to "amd64fbsd_sigtramp_p". * i386fbsd-tdep.c (i386fbsd_sigtramp_start) (i386fbsd_sigtramp_middle, i386fbsd_sigtramp_end) (i386fbsd_freebsd4_sigtramp_start) (i386fbsd_freebsd4_sigtramp_middle) (i386fbsd_freebsd4_sigtramp_end, i386fbsd_osigtramp_start) (i386fbsd_osigtramp_middle, i386fbsd_osigtramp_end): New. (i386fbsd_sigtramp_p): New. (i386fbsd_sigtramp_start_addr, i386fbsd_sigtramp_end_addr): No longer set default values. (i386fbsd_init_abi): Set "sigtramp_p" to "i386fbsd_sigtramp_p".
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/* Return whether THIS_FRAME corresponds to a FreeBSD sigtramp
routine. */
static const gdb_byte amd64fbsd_sigtramp_code[] =
{
0x48, 0x8d, 0x7c, 0x24, 0x10, /* lea SIGF_UC(%rsp),%rdi */
0x6a, 0x00, /* pushq $0 */
0x48, 0xc7, 0xc0, 0xa1, 0x01, 0x00, 0x00,
/* movq $SYS_sigreturn,%rax */
0x0f, 0x05 /* syscall */
};
static int
amd64fbsd_sigtramp_p (struct frame_info *this_frame)
{
CORE_ADDR pc = get_frame_pc (this_frame);
gdb_byte buf[sizeof amd64fbsd_sigtramp_code];
if (!safe_frame_unwind_memory (this_frame, pc, buf, sizeof buf))
return 0;
if (memcmp (buf, amd64fbsd_sigtramp_code, sizeof amd64fbsd_sigtramp_code)
!= 0)
Rework signal frame probing for FreeBSD/x86 - Use signal frame sniffers that look for the signal trampoline instruction sequence to detect most signal frames. - FreeBSD kernels between 9.2 and 10.1 inclusive do not include the signal trampoline code in process core dumps. To detect signal frames for core dumps under these kernels, use the kern.proc.sigtramp.<pid> sysctl to fetch the location of the signal trampoline in the gdb process and assume that PC values within this location are signal frames. This depends on that location being identical for all binaries. gdb/ChangeLog: 2015-02-25 John Baldwin <jhb@FreeBSD.org> * amd64fbsd-nat.c: Include sys/user.h. (_initialize_amd64fbsd_nat): Use the KERN_PROC_SIGTRAMP sysctl instead of KERN_PS_STRINGS to locate the signal trampoline. * i386fbsd-nat.c: Include sys/user.h. (_initialize_i386fbsd_nat): Use the KERN_PROC_SIGTRAMP sysctl instead of KERN_PS_STRINGS to locate the signal trampoline. * amd64fbsd-tdep.c (amd64fbsd_sigtramp_code): New. (amd64fbsd_sigtramp_p): New. (amd64fbsd_sigtramp_start_addr, amd64fbsd_sigtramp_end_addr): No longer set default values. (amd64fbsd_init_abi): Set "sigtramp_p" to "amd64fbsd_sigtramp_p". * i386fbsd-tdep.c (i386fbsd_sigtramp_start) (i386fbsd_sigtramp_middle, i386fbsd_sigtramp_end) (i386fbsd_freebsd4_sigtramp_start) (i386fbsd_freebsd4_sigtramp_middle) (i386fbsd_freebsd4_sigtramp_end, i386fbsd_osigtramp_start) (i386fbsd_osigtramp_middle, i386fbsd_osigtramp_end): New. (i386fbsd_sigtramp_p): New. (i386fbsd_sigtramp_start_addr, i386fbsd_sigtramp_end_addr): No longer set default values. (i386fbsd_init_abi): Set "sigtramp_p" to "i386fbsd_sigtramp_p".
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return 0;
return 1;
}
Update i386 and amd64 ports for unwinder changes. * amd64-tdep.c (amd64_frame_cache): Expect this_frame. (amd64_frame_this_id, amd64_frame_prev_register): Update signature. (amd64_frame_unwind): Use default_frame_sniffer. (amd64_frame_sniffer): Delete. (amd64_sigtramp_frame_cache): Expect this_frame. (amd64_sigtramp_frame_this_id, amd64_sigtramp_frame_prev_register) (amd64_sigtramp_frame_sniffer): Update signature. (amd64_sigtramp_frame_unwind): Add amd64_sigtramp_frame_sniffer. (amd64_frame_base_address): Expect this_frame. (amd64_dummy_id): Renamed from amd64_unwind_dummy_id. Expect this_frame. (amd64_init_abi): Use set_gdbarch_dummy_id and frame_unwind_append_unwinder. * i386-tdep.c (i386_frame_cache): Expect this_frame. (i386_frame_this_id, i386_frame_prev_register): Update signature. (i386_frame_unwind): Use default_frame_sniffer. (i386_frame_sniffer): Delete. (i386_sigtramp_frame_cache): Expect this_frame. (i386_sigtramp_frame_this_id, i386_sigtramp_frame_prev_register) (i386_sigtramp_frame_sniffer): Update signature. (i386_sigtramp_frame_unwind): Use i386_sigtramp_frame_sniffer. (i386_frame_base_address): Update signature. (i386_dummy_id): Rename from i386_unwind_dummy_id. Expect this_frame. (i386_push_dummy_call): Update comment. (i386_sigtramp_p, i386_svr4_sigtramp_p, i386_svr4_sigcontext_addr): Expect this_frame. (i386_gdbarch_init): Use set_gdbarch_dummy_id, dwarf2_append_unwinders, and frame_unwind_append_unwinder. * amd64-linux-tdep.c, amd64-sol2-tdep.c, amd64fbsd-tdep.c, amd64nbsd-tdep.c, amd64obsd-tdep.c, i386-linux-tdep.c, i386-nto-tdep.c, i386bsd-tdep.c, i386-sol2-tdep.c, i386obsd-tdep.c, i386nbsd-tdep.c: Update for unwinder changes.
2008-04-30 23:19:45 +02:00
/* Assuming THIS_FRAME is for a BSD sigtramp routine, return the
address of the associated sigcontext structure. */
static CORE_ADDR
Update i386 and amd64 ports for unwinder changes. * amd64-tdep.c (amd64_frame_cache): Expect this_frame. (amd64_frame_this_id, amd64_frame_prev_register): Update signature. (amd64_frame_unwind): Use default_frame_sniffer. (amd64_frame_sniffer): Delete. (amd64_sigtramp_frame_cache): Expect this_frame. (amd64_sigtramp_frame_this_id, amd64_sigtramp_frame_prev_register) (amd64_sigtramp_frame_sniffer): Update signature. (amd64_sigtramp_frame_unwind): Add amd64_sigtramp_frame_sniffer. (amd64_frame_base_address): Expect this_frame. (amd64_dummy_id): Renamed from amd64_unwind_dummy_id. Expect this_frame. (amd64_init_abi): Use set_gdbarch_dummy_id and frame_unwind_append_unwinder. * i386-tdep.c (i386_frame_cache): Expect this_frame. (i386_frame_this_id, i386_frame_prev_register): Update signature. (i386_frame_unwind): Use default_frame_sniffer. (i386_frame_sniffer): Delete. (i386_sigtramp_frame_cache): Expect this_frame. (i386_sigtramp_frame_this_id, i386_sigtramp_frame_prev_register) (i386_sigtramp_frame_sniffer): Update signature. (i386_sigtramp_frame_unwind): Use i386_sigtramp_frame_sniffer. (i386_frame_base_address): Update signature. (i386_dummy_id): Rename from i386_unwind_dummy_id. Expect this_frame. (i386_push_dummy_call): Update comment. (i386_sigtramp_p, i386_svr4_sigtramp_p, i386_svr4_sigcontext_addr): Expect this_frame. (i386_gdbarch_init): Use set_gdbarch_dummy_id, dwarf2_append_unwinders, and frame_unwind_append_unwinder. * amd64-linux-tdep.c, amd64-sol2-tdep.c, amd64fbsd-tdep.c, amd64nbsd-tdep.c, amd64obsd-tdep.c, i386-linux-tdep.c, i386-nto-tdep.c, i386bsd-tdep.c, i386-sol2-tdep.c, i386obsd-tdep.c, i386nbsd-tdep.c: Update for unwinder changes.
2008-04-30 23:19:45 +02:00
amd64fbsd_sigcontext_addr (struct frame_info *this_frame)
{
struct gdbarch *gdbarch = get_frame_arch (this_frame);
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
CORE_ADDR sp;
gdb_byte buf[8];
/* The `struct sigcontext' (which really is an `ucontext_t' on
FreeBSD/amd64) lives at a fixed offset in the signal frame. See
<machine/sigframe.h>. */
get_frame_register (this_frame, AMD64_RSP_REGNUM, buf);
sp = extract_unsigned_integer (buf, 8, byte_order);
return sp + 16;
}
/* FreeBSD 5.1-RELEASE or later. */
/* Mapping between the general-purpose registers in `struct reg'
format and GDB's register cache layout.
Note that some registers are 32-bit, but since we're little-endian
we get away with that. */
/* From <machine/reg.h>. */
static int amd64fbsd_r_reg_offset[] =
{
14 * 8, /* %rax */
11 * 8, /* %rbx */
13 * 8, /* %rcx */
12 * 8, /* %rdx */
9 * 8, /* %rsi */
8 * 8, /* %rdi */
10 * 8, /* %rbp */
20 * 8, /* %rsp */
2011-01-07 Michael Snyder <msnyder@vmware.com> * ada-lang.c: Comment cleanup, mostly periods and spaces. * ada-lang.h: Ditto. * ada-tasks.c: Ditto. * ada-valprint.c: Ditto. * aix-threads.c: Ditto. * alpha-linux-nat.c: Ditto. * alpha-linux-tdep.c: Ditto. * alpha-mdebug-tdep.c: Ditto. * alpha-nat.c: Ditto. * alpha-osf1-tdep.c: Ditto. * alpha-tdep.c: Ditto. * alphabsd-nat.c: Ditto. * alphabsd-tdep.c: Ditto. * amd64-darwin-tdep.c: Ditto. * amd64-linux-nat.c: Ditto. * amd64-linux-tdep.c: Ditto. * amd64-sol2-tdep.c: Ditto. * amd64-tdep.c: Ditto. * amd64-fbsd-tdep.c: Ditto. * amd64-nbsd-tdep.c: Ditto. * amd64-obsd-tdep.c: Ditto. * amd64-linux-nat.c: Ditto. * amd64-linux-tdep.c: Ditto. * arm-tdep.c: Ditto. * arm-tdep.h: Ditto. * armnbsd-nat.c: Ditto. * avr-tdep.c: Ditto. * bfin-tdep.c: Ditto. * bsd-kvm.c: Ditto. * c-typeprintc: Ditto. * c-valprint.c: Ditto. * coff-pe-read.h: Ditto. * coffreead.c: Ditto. * cris-tdep.c: Ditto. * d-lang.c: Ditto. * darwin-nat-info.c: Ditto. * darwin-nat.c: Ditto. * dbug-rom.c: Ditto. * dbxread.c: Ditto. * dcache.c: Ditto. * dcache.h: Ditto. * dec-thread.c: Ditto. * defs.h: Ditto. * demangle.c: Ditto. * dicos-tdep.c: Ditto. * dictionary.c: Ditto. * dictionary.h: Ditto. * dink32-rom.c: Ditto. * disasm.c: Ditto. * doublest.c: Ditto. * dsrec.c: Ditto. * dummy-frame.c: Ditto. * dwarf2-frame.c: Ditto. * dwarf2expr.c: Ditto. * dwarf2loc.c: Ditto. * dwarf2read.c: Ditto. * elfread.c: Ditto. * environ.c: Ditto. * eval.c: Ditto. * event-top.h: Ditto. * exceptions.c: Ditto. * exceptions.h: Ditto. * exec.c: Ditto. * expprint.c: Ditto. * expression.h: Ditto. * f-exp.y: Ditto. * f-lang.c: Ditto. * f-lang.h: Ditto. * f-typeprint.c: Ditto. * f-valprint.c: Ditto. * fbsd-nat.c: Ditto. * findvar.c: Ditto. * fork-child.c: Ditto. * frame.c: Ditto. * frame.h: Ditto. * frv-linux-tdep.c: Ditto. * frv-tdep.c: Ditto. * gcore.c: Ditto. * gdb-stabs.h: Ditto. * gdb_assert.h: Ditto. * gdb_string.h: Ditto. * gdb_thread_db.h: Ditto. * gdb_wait.h: Ditto. * gdbarch.sh: Ditto. * gdbcore.h: Ditto. * gdbthread.h: Ditto. * gdbtypes.c: Ditto. * gdbtypes.h: Ditto. * gnu-nat.c: Ditto. * gnu-nat.h: Ditto. * gnu-v2-abi.c: Ditto. * gnu-v3-abi.c: Ditto. * go32-nat.c: Ditto. * gdbarch.c: Regenerate. * gdbarch.h: Regenerate.
2011-01-07 20:36:19 +01:00
7 * 8, /* %r8 ... */
6 * 8,
5 * 8,
4 * 8,
3 * 8,
2 * 8,
1 * 8,
0 * 8, /* ... %r15 */
17 * 8, /* %rip */
19 * 8, /* %eflags */
18 * 8, /* %cs */
21 * 8, /* %ss */
-1, /* %ds */
-1, /* %es */
-1, /* %fs */
-1 /* %gs */
};
/* Location of the signal trampoline. */
Rework signal frame probing for FreeBSD/x86 - Use signal frame sniffers that look for the signal trampoline instruction sequence to detect most signal frames. - FreeBSD kernels between 9.2 and 10.1 inclusive do not include the signal trampoline code in process core dumps. To detect signal frames for core dumps under these kernels, use the kern.proc.sigtramp.<pid> sysctl to fetch the location of the signal trampoline in the gdb process and assume that PC values within this location are signal frames. This depends on that location being identical for all binaries. gdb/ChangeLog: 2015-02-25 John Baldwin <jhb@FreeBSD.org> * amd64fbsd-nat.c: Include sys/user.h. (_initialize_amd64fbsd_nat): Use the KERN_PROC_SIGTRAMP sysctl instead of KERN_PS_STRINGS to locate the signal trampoline. * i386fbsd-nat.c: Include sys/user.h. (_initialize_i386fbsd_nat): Use the KERN_PROC_SIGTRAMP sysctl instead of KERN_PS_STRINGS to locate the signal trampoline. * amd64fbsd-tdep.c (amd64fbsd_sigtramp_code): New. (amd64fbsd_sigtramp_p): New. (amd64fbsd_sigtramp_start_addr, amd64fbsd_sigtramp_end_addr): No longer set default values. (amd64fbsd_init_abi): Set "sigtramp_p" to "amd64fbsd_sigtramp_p". * i386fbsd-tdep.c (i386fbsd_sigtramp_start) (i386fbsd_sigtramp_middle, i386fbsd_sigtramp_end) (i386fbsd_freebsd4_sigtramp_start) (i386fbsd_freebsd4_sigtramp_middle) (i386fbsd_freebsd4_sigtramp_end, i386fbsd_osigtramp_start) (i386fbsd_osigtramp_middle, i386fbsd_osigtramp_end): New. (i386fbsd_sigtramp_p): New. (i386fbsd_sigtramp_start_addr, i386fbsd_sigtramp_end_addr): No longer set default values. (i386fbsd_init_abi): Set "sigtramp_p" to "i386fbsd_sigtramp_p".
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CORE_ADDR amd64fbsd_sigtramp_start_addr;
CORE_ADDR amd64fbsd_sigtramp_end_addr;
/* From <machine/signal.h>. */
int amd64fbsd_sc_reg_offset[] =
{
24 + 6 * 8, /* %rax */
24 + 7 * 8, /* %rbx */
24 + 3 * 8, /* %rcx */
24 + 2 * 8, /* %rdx */
24 + 1 * 8, /* %rsi */
24 + 0 * 8, /* %rdi */
24 + 8 * 8, /* %rbp */
24 + 22 * 8, /* %rsp */
2011-01-07 Michael Snyder <msnyder@vmware.com> * ada-lang.c: Comment cleanup, mostly periods and spaces. * ada-lang.h: Ditto. * ada-tasks.c: Ditto. * ada-valprint.c: Ditto. * aix-threads.c: Ditto. * alpha-linux-nat.c: Ditto. * alpha-linux-tdep.c: Ditto. * alpha-mdebug-tdep.c: Ditto. * alpha-nat.c: Ditto. * alpha-osf1-tdep.c: Ditto. * alpha-tdep.c: Ditto. * alphabsd-nat.c: Ditto. * alphabsd-tdep.c: Ditto. * amd64-darwin-tdep.c: Ditto. * amd64-linux-nat.c: Ditto. * amd64-linux-tdep.c: Ditto. * amd64-sol2-tdep.c: Ditto. * amd64-tdep.c: Ditto. * amd64-fbsd-tdep.c: Ditto. * amd64-nbsd-tdep.c: Ditto. * amd64-obsd-tdep.c: Ditto. * amd64-linux-nat.c: Ditto. * amd64-linux-tdep.c: Ditto. * arm-tdep.c: Ditto. * arm-tdep.h: Ditto. * armnbsd-nat.c: Ditto. * avr-tdep.c: Ditto. * bfin-tdep.c: Ditto. * bsd-kvm.c: Ditto. * c-typeprintc: Ditto. * c-valprint.c: Ditto. * coff-pe-read.h: Ditto. * coffreead.c: Ditto. * cris-tdep.c: Ditto. * d-lang.c: Ditto. * darwin-nat-info.c: Ditto. * darwin-nat.c: Ditto. * dbug-rom.c: Ditto. * dbxread.c: Ditto. * dcache.c: Ditto. * dcache.h: Ditto. * dec-thread.c: Ditto. * defs.h: Ditto. * demangle.c: Ditto. * dicos-tdep.c: Ditto. * dictionary.c: Ditto. * dictionary.h: Ditto. * dink32-rom.c: Ditto. * disasm.c: Ditto. * doublest.c: Ditto. * dsrec.c: Ditto. * dummy-frame.c: Ditto. * dwarf2-frame.c: Ditto. * dwarf2expr.c: Ditto. * dwarf2loc.c: Ditto. * dwarf2read.c: Ditto. * elfread.c: Ditto. * environ.c: Ditto. * eval.c: Ditto. * event-top.h: Ditto. * exceptions.c: Ditto. * exceptions.h: Ditto. * exec.c: Ditto. * expprint.c: Ditto. * expression.h: Ditto. * f-exp.y: Ditto. * f-lang.c: Ditto. * f-lang.h: Ditto. * f-typeprint.c: Ditto. * f-valprint.c: Ditto. * fbsd-nat.c: Ditto. * findvar.c: Ditto. * fork-child.c: Ditto. * frame.c: Ditto. * frame.h: Ditto. * frv-linux-tdep.c: Ditto. * frv-tdep.c: Ditto. * gcore.c: Ditto. * gdb-stabs.h: Ditto. * gdb_assert.h: Ditto. * gdb_string.h: Ditto. * gdb_thread_db.h: Ditto. * gdb_wait.h: Ditto. * gdbarch.sh: Ditto. * gdbcore.h: Ditto. * gdbthread.h: Ditto. * gdbtypes.c: Ditto. * gdbtypes.h: Ditto. * gnu-nat.c: Ditto. * gnu-nat.h: Ditto. * gnu-v2-abi.c: Ditto. * gnu-v3-abi.c: Ditto. * go32-nat.c: Ditto. * gdbarch.c: Regenerate. * gdbarch.h: Regenerate.
2011-01-07 20:36:19 +01:00
24 + 4 * 8, /* %r8 ... */
24 + 5 * 8,
24 + 9 * 8,
24 + 10 * 8,
24 + 11 * 8,
24 + 12 * 8,
24 + 13 * 8,
24 + 14 * 8, /* ... %r15 */
24 + 19 * 8, /* %rip */
24 + 21 * 8, /* %eflags */
24 + 20 * 8, /* %cs */
24 + 23 * 8, /* %ss */
-1, /* %ds */
-1, /* %es */
-1, /* %fs */
-1 /* %gs */
};
/* From /usr/src/lib/libc/amd64/gen/_setjmp.S. */
static int amd64fbsd_jmp_buf_reg_offset[] =
{
-1, /* %rax */
1 * 8, /* %rbx */
-1, /* %rcx */
-1, /* %rdx */
-1, /* %rsi */
-1, /* %rdi */
3 * 8, /* %rbp */
2 * 8, /* %rsp */
2011-01-07 Michael Snyder <msnyder@vmware.com> * ada-lang.c: Comment cleanup, mostly periods and spaces. * ada-lang.h: Ditto. * ada-tasks.c: Ditto. * ada-valprint.c: Ditto. * aix-threads.c: Ditto. * alpha-linux-nat.c: Ditto. * alpha-linux-tdep.c: Ditto. * alpha-mdebug-tdep.c: Ditto. * alpha-nat.c: Ditto. * alpha-osf1-tdep.c: Ditto. * alpha-tdep.c: Ditto. * alphabsd-nat.c: Ditto. * alphabsd-tdep.c: Ditto. * amd64-darwin-tdep.c: Ditto. * amd64-linux-nat.c: Ditto. * amd64-linux-tdep.c: Ditto. * amd64-sol2-tdep.c: Ditto. * amd64-tdep.c: Ditto. * amd64-fbsd-tdep.c: Ditto. * amd64-nbsd-tdep.c: Ditto. * amd64-obsd-tdep.c: Ditto. * amd64-linux-nat.c: Ditto. * amd64-linux-tdep.c: Ditto. * arm-tdep.c: Ditto. * arm-tdep.h: Ditto. * armnbsd-nat.c: Ditto. * avr-tdep.c: Ditto. * bfin-tdep.c: Ditto. * bsd-kvm.c: Ditto. * c-typeprintc: Ditto. * c-valprint.c: Ditto. * coff-pe-read.h: Ditto. * coffreead.c: Ditto. * cris-tdep.c: Ditto. * d-lang.c: Ditto. * darwin-nat-info.c: Ditto. * darwin-nat.c: Ditto. * dbug-rom.c: Ditto. * dbxread.c: Ditto. * dcache.c: Ditto. * dcache.h: Ditto. * dec-thread.c: Ditto. * defs.h: Ditto. * demangle.c: Ditto. * dicos-tdep.c: Ditto. * dictionary.c: Ditto. * dictionary.h: Ditto. * dink32-rom.c: Ditto. * disasm.c: Ditto. * doublest.c: Ditto. * dsrec.c: Ditto. * dummy-frame.c: Ditto. * dwarf2-frame.c: Ditto. * dwarf2expr.c: Ditto. * dwarf2loc.c: Ditto. * dwarf2read.c: Ditto. * elfread.c: Ditto. * environ.c: Ditto. * eval.c: Ditto. * event-top.h: Ditto. * exceptions.c: Ditto. * exceptions.h: Ditto. * exec.c: Ditto. * expprint.c: Ditto. * expression.h: Ditto. * f-exp.y: Ditto. * f-lang.c: Ditto. * f-lang.h: Ditto. * f-typeprint.c: Ditto. * f-valprint.c: Ditto. * fbsd-nat.c: Ditto. * findvar.c: Ditto. * fork-child.c: Ditto. * frame.c: Ditto. * frame.h: Ditto. * frv-linux-tdep.c: Ditto. * frv-tdep.c: Ditto. * gcore.c: Ditto. * gdb-stabs.h: Ditto. * gdb_assert.h: Ditto. * gdb_string.h: Ditto. * gdb_thread_db.h: Ditto. * gdb_wait.h: Ditto. * gdbarch.sh: Ditto. * gdbcore.h: Ditto. * gdbthread.h: Ditto. * gdbtypes.c: Ditto. * gdbtypes.h: Ditto. * gnu-nat.c: Ditto. * gnu-nat.h: Ditto. * gnu-v2-abi.c: Ditto. * gnu-v3-abi.c: Ditto. * go32-nat.c: Ditto. * gdbarch.c: Regenerate. * gdbarch.h: Regenerate.
2011-01-07 20:36:19 +01:00
-1, /* %r8 ... */
-1,
-1,
-1, /* ... %r11 */
2011-01-07 Michael Snyder <msnyder@vmware.com> * ada-lang.c: Comment cleanup, mostly periods and spaces. * ada-lang.h: Ditto. * ada-tasks.c: Ditto. * ada-valprint.c: Ditto. * aix-threads.c: Ditto. * alpha-linux-nat.c: Ditto. * alpha-linux-tdep.c: Ditto. * alpha-mdebug-tdep.c: Ditto. * alpha-nat.c: Ditto. * alpha-osf1-tdep.c: Ditto. * alpha-tdep.c: Ditto. * alphabsd-nat.c: Ditto. * alphabsd-tdep.c: Ditto. * amd64-darwin-tdep.c: Ditto. * amd64-linux-nat.c: Ditto. * amd64-linux-tdep.c: Ditto. * amd64-sol2-tdep.c: Ditto. * amd64-tdep.c: Ditto. * amd64-fbsd-tdep.c: Ditto. * amd64-nbsd-tdep.c: Ditto. * amd64-obsd-tdep.c: Ditto. * amd64-linux-nat.c: Ditto. * amd64-linux-tdep.c: Ditto. * arm-tdep.c: Ditto. * arm-tdep.h: Ditto. * armnbsd-nat.c: Ditto. * avr-tdep.c: Ditto. * bfin-tdep.c: Ditto. * bsd-kvm.c: Ditto. * c-typeprintc: Ditto. * c-valprint.c: Ditto. * coff-pe-read.h: Ditto. * coffreead.c: Ditto. * cris-tdep.c: Ditto. * d-lang.c: Ditto. * darwin-nat-info.c: Ditto. * darwin-nat.c: Ditto. * dbug-rom.c: Ditto. * dbxread.c: Ditto. * dcache.c: Ditto. * dcache.h: Ditto. * dec-thread.c: Ditto. * defs.h: Ditto. * demangle.c: Ditto. * dicos-tdep.c: Ditto. * dictionary.c: Ditto. * dictionary.h: Ditto. * dink32-rom.c: Ditto. * disasm.c: Ditto. * doublest.c: Ditto. * dsrec.c: Ditto. * dummy-frame.c: Ditto. * dwarf2-frame.c: Ditto. * dwarf2expr.c: Ditto. * dwarf2loc.c: Ditto. * dwarf2read.c: Ditto. * elfread.c: Ditto. * environ.c: Ditto. * eval.c: Ditto. * event-top.h: Ditto. * exceptions.c: Ditto. * exceptions.h: Ditto. * exec.c: Ditto. * expprint.c: Ditto. * expression.h: Ditto. * f-exp.y: Ditto. * f-lang.c: Ditto. * f-lang.h: Ditto. * f-typeprint.c: Ditto. * f-valprint.c: Ditto. * fbsd-nat.c: Ditto. * findvar.c: Ditto. * fork-child.c: Ditto. * frame.c: Ditto. * frame.h: Ditto. * frv-linux-tdep.c: Ditto. * frv-tdep.c: Ditto. * gcore.c: Ditto. * gdb-stabs.h: Ditto. * gdb_assert.h: Ditto. * gdb_string.h: Ditto. * gdb_thread_db.h: Ditto. * gdb_wait.h: Ditto. * gdbarch.sh: Ditto. * gdbcore.h: Ditto. * gdbthread.h: Ditto. * gdbtypes.c: Ditto. * gdbtypes.h: Ditto. * gnu-nat.c: Ditto. * gnu-nat.h: Ditto. * gnu-v2-abi.c: Ditto. * gnu-v3-abi.c: Ditto. * go32-nat.c: Ditto. * gdbarch.c: Regenerate. * gdbarch.h: Regenerate.
2011-01-07 20:36:19 +01:00
4 * 8, /* %r12 ... */
5 * 8,
6 * 8,
7 * 8, /* ... %r15 */
0 * 8 /* %rip */
};
Add support for the x86 XSAVE extended state on FreeBSD/x86. Recognize NT_X86_XSTATE notes in FreeBSD process cores. Recent FreeBSD versions include a note containing the XSAVE state for each thread in the process when XSAVE is in use. The note stores a copy of the current XSAVE mask in a reserved section of the machine-defined XSAVE state at the same offset as Linux's NT_X86_XSTATE note. For native processes, use the PT_GETXSTATE_INFO ptrace request to determine if XSAVE is enabled, and if so the active XSAVE state mask (that is, the value of %xcr0 for the target process) as well as the size of XSAVE state area. Use the PT_GETXSTATE and PT_SETXSTATE requests to fetch and store the XSAVE state, respectively, in the BSD x86 native targets. In addition, the FreeBSD amd64 and i386 native targets now include "read_description" target methods to determine the correct x86 target description for the current XSAVE mask. On FreeBSD amd64 this also properly returns an i386 target description for 32-bit binaries which allows the 64-bit GDB to run 32-bit binaries. Note that the ptrace changes are in the BSD native targets, not the FreeBSD-specific native targets since that is where the other ptrace register accesses occur. Of the other BSDs, NetBSD and DragonFly use XSAVE in the kernel but do not currently export the extended state via ptrace(2). OpenBSD does not currently support XSAVE. bfd/ChangeLog: * elf.c (elfcore_grok_note): Recognize NT_X86_XSTATE on FreeBSD. (elfcore_write_xstatereg): Use correct note name on FreeBSD. gdb/ChangeLog: * amd64-tdep.c (amd64_target_description): New function. * amd64-tdep.h: Export amd64_target_description and tdesc_amd64. * amd64bsd-nat.c [PT_GETXSTATE_INFO]: New variable amd64bsd_xsave_len. (amd64bsd_fetch_inferior_registers) [PT_GETXSTATE_INFO]: Handle x86 extended save area. (amd64bsd_store_inferior_registers) [PT_GETXSTATE_INFO]: Likewise. * amd64bsd-nat.h: Export amd64bsd_xsave_len. * amd64fbsd-nat.c (amd64fbsd_read_description): New function. (_initialize_amd64fbsd_nat): Set "to_read_description" to "amd64fbsd_read_description". * amd64fbsd-tdep.c (amd64fbsd_core_read_description): New function. (amd64fbsd_supply_xstateregset): New function. (amd64fbsd_collect_xstateregset): New function. Add "amd64fbsd_xstateregset". (amd64fbsd_iterate_over_regset_sections): New function. (amd64fbsd_init_abi): Set "xsave_xcr0_offset" to "I386_FBSD_XSAVE_XCR0_OFFSET". Add "iterate_over_regset_sections" gdbarch method. Add "core_read_description" gdbarch method. * i386-tdep.c (i386_target_description): New function. * i386-tdep.h: Export i386_target_description and tdesc_i386. * i386bsd-nat.c [PT_GETXSTATE_INFO]: New variable i386bsd_xsave_len. (i386bsd_fetch_inferior_registers) [PT_GETXSTATE_INFO]: Handle x86 extended save area. (i386bsd_store_inferior_registers) [PT_GETXSTATE_INFO]: Likewise. * i386bsd-nat.h: Export i386bsd_xsave_len. * i386fbsd-nat.c (i386fbsd_read_description): New function. (_initialize_i386fbsd_nat): Set "to_read_description" to "i386fbsd_read_description". * i386fbsd-tdep.c (i386fbsd_core_read_xcr0): New function. (i386fbsd_core_read_description): New function. (i386fbsd_supply_xstateregset): New function. (i386fbsd_collect_xstateregset): New function. Add "i386fbsd_xstateregset". (i386fbsd_iterate_over_regset_sections): New function. (i386fbsd4_init_abi): Set "xsave_xcr0_offset" to "I386_FBSD_XSAVE_XCR0_OFFSET". Add "iterate_over_regset_sections" gdbarch method. Add "core_read_description" gdbarch method. * i386fbsd-tdep.h: New file.
2015-02-21 22:43:30 +01:00
/* Implement the core_read_description gdbarch method. */
static const struct target_desc *
amd64fbsd_core_read_description (struct gdbarch *gdbarch,
struct target_ops *target,
bfd *abfd)
{
return amd64_target_description (i386fbsd_core_read_xcr0 (abfd));
}
/* Similar to amd64_supply_fpregset, but use XSAVE extended state. */
static void
amd64fbsd_supply_xstateregset (const struct regset *regset,
struct regcache *regcache, int regnum,
const void *xstateregs, size_t len)
{
amd64_supply_xsave (regcache, regnum, xstateregs);
}
/* Similar to amd64_collect_fpregset, but use XSAVE extended state. */
static void
amd64fbsd_collect_xstateregset (const struct regset *regset,
const struct regcache *regcache,
int regnum, void *xstateregs, size_t len)
{
amd64_collect_xsave (regcache, regnum, xstateregs, 1);
}
static const struct regset amd64fbsd_xstateregset =
{
NULL,
amd64fbsd_supply_xstateregset,
amd64fbsd_collect_xstateregset
};
/* Iterate over core file register note sections. */
static void
amd64fbsd_iterate_over_regset_sections (struct gdbarch *gdbarch,
iterate_over_regset_sections_cb *cb,
void *cb_data,
const struct regcache *regcache)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
cb (".reg", tdep->sizeof_gregset, &i386_gregset, NULL, cb_data);
cb (".reg2", tdep->sizeof_fpregset, &amd64_fpregset, NULL, cb_data);
cb (".reg-xstate", X86_XSTATE_SIZE(tdep->xcr0),
&amd64fbsd_xstateregset, "XSAVE extended state", cb_data);
}
static void
amd64fbsd_supply_uthread (struct regcache *regcache,
int regnum, CORE_ADDR addr)
{
gdb_byte buf[8];
int i;
gdb_assert (regnum >= -1);
for (i = 0; i < ARRAY_SIZE (amd64fbsd_jmp_buf_reg_offset); i++)
{
if (amd64fbsd_jmp_buf_reg_offset[i] != -1
&& (regnum == -1 || regnum == i))
{
read_memory (addr + amd64fbsd_jmp_buf_reg_offset[i], buf, 8);
regcache_raw_supply (regcache, i, buf);
}
}
}
static void
amd64fbsd_collect_uthread (const struct regcache *regcache,
int regnum, CORE_ADDR addr)
{
gdb_byte buf[8];
int i;
gdb_assert (regnum >= -1);
for (i = 0; i < ARRAY_SIZE (amd64fbsd_jmp_buf_reg_offset); i++)
{
if (amd64fbsd_jmp_buf_reg_offset[i] != -1
&& (regnum == -1 || regnum == i))
{
regcache_raw_collect (regcache, i, buf);
write_memory (addr + amd64fbsd_jmp_buf_reg_offset[i], buf, 8);
}
}
}
Silence a few -Wmissing-prototypes warnings. PR build/9877: * alpha-linux-tdep.c (alpha_linux_regset_from_core_section): Make it static. * alpha-osf1-tdep.c (_initialize_alpha_osf1_tdep): Declare. * amd64fbsd-tdep.c (amd64fbsd_init_abi): Make it static. * amd64nbsd-tdep.c (_initialize_amd64nbsd_ndep): Rename to ... (_initialize_amd64nbsd_tdep): ... this. * arm-linux-tdep.c (arm_linux_software_single_step): Make it static. (_initialize_arm_linux_tdep): Declare. * armbsd-tdep.c (armbsd_fpreg_offset): Make it static. * armnbsd-tdep.c (_initialize_arm_netbsd_tdep): Declare. * armobsd-tdep.c (_initialize_armobsd_tdep): Declare. * avr-tdep.c (avr_return_value): Make it static. (avr_frame_unwind_cache): Ditto. * bsd-uthread.c (bsd_uthread_inferior_created): Ditto. (bsd_uthread_solib_loaded): Ditto. (bsd_uthread_solib_unloaded): Ditto. (bsd_uthread_target): Ditto. (_initialize_bsd_uthread): Declare. * cris-tdep.c (crisv32_single_step_through_delay): Make it static. (cris_frame_unwind_cache): Ditto. * frv-tdep.c (frv_return_value): Ditto. * h8300-tdep.c (h8300_use_struct_convention): Ditto. (h8300h_use_struct_convention): Ditto. * hppa-tdep.c (hppa_sign_extend, hppa_low_hppa_sign_extend): Ditto. * hppa-tdep.h (hppa_low_sign_extend, hppa_sign_extend): Delete declarations. * hppabsd-tdep.c: Include hppabsd-tdep.h. (hppabsd_find_global_pointer): Make it static. * hppabsd-tdep.h: New. * hppanbsd-tdep.c: Include hppabsd-tdep.h. (hppabsd_init_abi): Remove declaration. (_initialize_hppabsd_tdep): Remove declaration. (_initialize_hppanbsd_tdep): Declare. * hppaobsd-tdep.c: Include hppabsd-tdep.h. (hppabsd_init_abi): Delete declaration. (hppaobsd_init_abi): Make it static. * i386-nto-tdep.c (_initialize_i386nto_tdep): Declare. * i386nbsd-tdep.c (_initialize_i386nbsd_tdep): Declare. * ia64-linux-tdep.c (_initialize_ia64_linux_tdep): Declare. * ia64-tdep.c (ia64_register_reggroup_p): Make it static. * iq2000-tdep.c (_initialize_iq2000_tdep): Declare. * m32c-tdep.c (m32c_register_reggroup_p): Make it static. (m32c_analyze_prologue, m32c_virtual_frame_pointer): Ditto. (_initialize_m32c_tdep): Declare. * m32r-rom.c (_initialize_m32r_rom): Declare. * m32r-tdep.c (m32r_skip_prologue): Make it static. (m32r_return_value): Ditto. * m68hc11-tdep.c (m68hc11_frame_unwind_cache): Make it static. (m68hc11_return_value): Ditto. * m68klinux-tdep.c (_initialize_m68k_linux_tdep): Declare. * m88k-tdep.c (m88k_frame_cache): Make it static. * mep-tdep.c (mep_gdb_print_insn): Ditto. (mep_return_value): Ditto. (_initialize_mep_tdep): Declare. * mips-irix-tdep.c (_initialize_mips_irix_tdep): Declare. * mips-linux-tdep.c (supply_64bit_reg): Make it static. (mips_linux_syscall_next_pc): Ditto. (_initialize_mips_linux_tdep): Declare. * mips-tdep.c (mips_single_step_through_delay): Make it static. * mipsnbsd-tdep.c (_initialize_mipsnbsd_tdep): Declare. * mn10300-linux-tdep.c (_initialize_mn10300_linux_tdep): Declare. * mn10300-tdep.c (_initialize_mn10300_tdep): Declare. * mt-tdep.c (_initialize_mt_tdep): Declare. * nbsd-tdep.c: Include nbsd-tdep.h. * nto-tdep.c (find_load_phdr): Make it static. (_initialize_nto_tdep): Declare. * ppc-linux-tdep.c (ppc_linux_memory_remove_breakpoint): Make it static. (_initialize_ppc_linux_tdep): Declare. * remote-m32r-sdi.c (m32r_can_use_hw_watchpoint) (m32r_insert_watchpoint, m32r_remove_watchpoint) (m32r_stopped_data_address, m32r_stopped_by_watchpoint): Make static. * rs6000-aix-tdep.c (_initialize_rs6000_aix_tdep): Declare. * rs6000-nat.c: Include xcoffread.h. (find_toc_address): Don't extern declare get_toc_offset. Adjust to call xcoff_get_to_offset. * rs6000-tdep.c (ppc_vsx_support_p, ppc_displaced_step_fixup) (rs6000_skip_main_prologue, rs6000_in_solib_return_trampoline) (rs6000_skip_trampoline_code): Make static. * s390-tdep.c (s390_regset_from_core_section): Ditto. * sh-tdep.c (sh_register_reggroup_p): Ditto. * shnbsd-tdep.c (shnbsd_regset_from_core_section): Ditto. (_initialize_shnbsd_tdep): Declare. * solib-frv.c (displacement_from_map): Make static. (_initialize_frv_solib): Declare. * solib-irix.c (fetch_lm_info): Make static. (_initialize_irix_solib): Declare. * solib-som.c: Include solib-som.h. (som_solib_select): Line break. * sparc-tdep.c (sparc_regset_from_core_section): Make static. * sparcnbsd-tdep.c (_initialize_sparnbsd_tdep): Rename to ... (_initialize_sparcnbsd_tdep): ... this. * spu-tdep.c (spu_software_single_step): Make it static. (_initialize_spu_tdep): Declare. * vax-tdep.c (vax_frame_cache): Make it static. * xcoffread.c: Include xcoffread.h. (get_toc_offset): Rename to ... (xcoff_get_toc_offset): ... this. (_initialize_xcoffread): Declare. * xcoffread.h: New. * xtensa-linux-tdep.c (_initialize_xtensa_linux_tdep): Declare. * xtensa-tdep.c (xtensa_skip_prologue, xtensa_derive_tdep): Make static. (_initialize_xtensa_tdep): Declare.
2009-02-22 02:02:20 +01:00
static void
amd64fbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
/* Generic FreeBSD support. */
fbsd_init_abi (info, gdbarch);
/* Obviously FreeBSD is BSD-based. */
i386bsd_init_abi (info, gdbarch);
tdep->gregset_reg_offset = amd64fbsd_r_reg_offset;
tdep->gregset_num_regs = ARRAY_SIZE (amd64fbsd_r_reg_offset);
tdep->sizeof_gregset = 22 * 8;
* x86-64-tdep.h: Tewak comment. (enum amd64_regnum): New. (X86_64_RAX_REGNUM, X86_64_RDX_REGNUM, X86_64_RDI_REGNUM) (X86_64_RBP_REGNUM, X86_64_RSP_REGNUM, X86_64_RIP_REGNUM) (X86_64_EFLAGS_REGNUM, X86_64_ST0_REGNUM, X86_64_XMM0_REGNUM) (X86_64_XMM1_REGNUM): Removed. (AMD64_NUM_GREGS): Renamed from X86_64_NUM_GREGS. (amd64_init_abi, amd64_supply_fxsave, amd64_fill_fxsave): Adjust prototypes for renamed functions. * x86-64-tdep.c: Fix typo. (amd64_dwarf_regmap): Use constants from `enum amd64_regnum' for register numbers. (amd64_return_value, amd64_push_arguments, amd64_push_dummy_call): Use constants from `enum amd64_regnum' for register numbers. (AMD64_NUM_SAVED_REGS): Adjust for renamed macros. (amd64_analyze_prologue, amd64_frame_cache, amd64_sigtramp_frame_cache): Use constants from `enum amd64_regnum' for register numbers. (amd64_supply_fpregset): Adjust for renamed functions. (amd64_init_abi): Rename from x86_64_init_abi. Use constants from `enum amd64_regnum' for register numbers. (I387_ST0_REGNUM): Use constant from `enum amd64_regnum'. (amd64_supply_fxsave): Rename from x86_64_supply_fxsave. (amd64_fill_fxsave): Rename fro x86_64_fill_fxsave. * x86-64-linux-tdep.c (amd64_linux_supply_gregset) (amd64_linux_fill_gregset): Adjust for renamed macros. (fetch_core_registers): Adjust for renamed functions. (amd64_linux_init_abi): Adjust for renamed functions. * x86-64-linux-nat.c (supply_gregset, fill_gregset): Adjust for renamed functions. * amd64-nat.c: Adjust for renamed macros. * amd64bsd-nat.c (fetch_inferior_registers) (store_inferior_registers): Use constants from `enum amd64_regnum' for register numbers. Adjust for renamed variables. * amd64fbsd-nat.c (supply_gregset, fill_gregset): Adjust for renamed variables. (_initialize_amd64fbsd_nat): Use constants from `enum amd64_regnum' for register numbers. * amd64fbsd-tdep.c (amd64fbsd_sigcontext_addr): Use constants from `enum amd64_regnum' for register numbers. (amd64fbsd_init_abi): Adjust for renamed functions. * amd64nbsd-tdep.c (amd64nbsd_sigcontext_addr): Use constants from `enum amd64_regnum' for register numbers. (amd64nbsd_init_abi): Adjust for renamed functions. (_initialize_amd64nbsd_ndep): Adjust for renamed macros. * amd64obsd-tdep.c (amd64obsd_sigcontext_addr): Use constants from `enum amd64_regnum' for register numbers. (amd64obsd_init_abi): Adjust for renamed functions. (_initialize_amd64obsd_ndep): Adjust for renamed macros.
2004-02-23 22:37:52 +01:00
amd64_init_abi (info, gdbarch);
Rework signal frame probing for FreeBSD/x86 - Use signal frame sniffers that look for the signal trampoline instruction sequence to detect most signal frames. - FreeBSD kernels between 9.2 and 10.1 inclusive do not include the signal trampoline code in process core dumps. To detect signal frames for core dumps under these kernels, use the kern.proc.sigtramp.<pid> sysctl to fetch the location of the signal trampoline in the gdb process and assume that PC values within this location are signal frames. This depends on that location being identical for all binaries. gdb/ChangeLog: 2015-02-25 John Baldwin <jhb@FreeBSD.org> * amd64fbsd-nat.c: Include sys/user.h. (_initialize_amd64fbsd_nat): Use the KERN_PROC_SIGTRAMP sysctl instead of KERN_PS_STRINGS to locate the signal trampoline. * i386fbsd-nat.c: Include sys/user.h. (_initialize_i386fbsd_nat): Use the KERN_PROC_SIGTRAMP sysctl instead of KERN_PS_STRINGS to locate the signal trampoline. * amd64fbsd-tdep.c (amd64fbsd_sigtramp_code): New. (amd64fbsd_sigtramp_p): New. (amd64fbsd_sigtramp_start_addr, amd64fbsd_sigtramp_end_addr): No longer set default values. (amd64fbsd_init_abi): Set "sigtramp_p" to "amd64fbsd_sigtramp_p". * i386fbsd-tdep.c (i386fbsd_sigtramp_start) (i386fbsd_sigtramp_middle, i386fbsd_sigtramp_end) (i386fbsd_freebsd4_sigtramp_start) (i386fbsd_freebsd4_sigtramp_middle) (i386fbsd_freebsd4_sigtramp_end, i386fbsd_osigtramp_start) (i386fbsd_osigtramp_middle, i386fbsd_osigtramp_end): New. (i386fbsd_sigtramp_p): New. (i386fbsd_sigtramp_start_addr, i386fbsd_sigtramp_end_addr): No longer set default values. (i386fbsd_init_abi): Set "sigtramp_p" to "i386fbsd_sigtramp_p".
2015-02-25 15:51:42 +01:00
tdep->sigtramp_p = amd64fbsd_sigtramp_p;
tdep->sigtramp_start = amd64fbsd_sigtramp_start_addr;
tdep->sigtramp_end = amd64fbsd_sigtramp_end_addr;
tdep->sigcontext_addr = amd64fbsd_sigcontext_addr;
tdep->sc_reg_offset = amd64fbsd_sc_reg_offset;
tdep->sc_num_regs = ARRAY_SIZE (amd64fbsd_sc_reg_offset);
* amd64fbsd-tdep.c: Include "solib-svr4.h". (amd64fbsd_init_abi): Set link map offsets. * amd64nbsd-tdep.c: Include "slib-svr4.h". (amd64nbsd_init_abi): Set link map offsets. * amd64obsd-tdep.c: Include "solib-svr4.h". (amd64obsd_init_abi): Set link map offsets. * i386fbsd-tdep.c: Include "solib-svr4.h". (i386fbsd_init_abi): Set link map offsets. * i386nbsd-tdep.c: Include "solib-svr4.h". (i386nbsdelf_init_abi): Set link map offsets. * Makefile.in (amd64fbsd-tdep.o, amd64nbsd-tdep.o) (amd64obsd-tdep.o, i386fbsd-tdep.o): Update dependencies. * config/i386/fbsd.mh (NATDEPFILES): Remove solib.o, solib-svr4.o, solib-legacy.o and core-aout.o. Reformat. * config/i386/fbsd64.mh (NATDEPFILES): Remove solib.o, solib-svr4.o, solib-legacy.o. Reformat. * config/i386/nbsdaout.mh (NATDEPFILES): Add solib.o. Reformat. * config/i386/nbsdelf.mh: Reformat. * config/i386/nbsd64.mh (NATDEPFILES): Remove solib.o, solib-svr4.o, solib-legacy.o and corelow.o. * config/i386/obsd.mh, config/i386/obsdaout.mh: Reformat. * config/i386/obsd64.mh (NATDEPFILES): Remove solib.o, solib-svr4.o, solib-legacy.o and corelow.o. Reformat. * config/i386/fbsd.mt (TDEPFILES): Add solib.o, solib-svr4.o. * config/i386/fbsd64.mt (TDEPFILES): Add solib.o, solib-svr4.o. (TM_FILE): Set to tm-fbsd.h. * config/i386/nbsd.mt (TDEPFILES): Reformat. * config/i386/nbsd64.mt (TDEPFILES): Add corelow.o, solib.o and solib-svr4.o. * config/i386/obsd.mt (TDEPFILES): Add corelow.o, solib.o and solib-svr4.o. (TM_FILE): Set to nm-nbsd.h. * config/i386/nm-fbsd.h: Update copyright year. Tweak comments. Simplify shared library support. Don't include "elf/common.h". (SVR4_SHARED_LIBS): Don't define. * config/i386/nm-fbsd64.h: Update copyright year. Don't include "solib.h". * config/i386/nm-nbsd.h, config/i386/nm-nbsdaout.h, config/i386/nm-obsd.h: Update copyright year. Tweak comments. * config/i386/tm-fbsd.h: Update copyright tear. Tweak comments. Don't include "i386/tm-i386.h". Include "solib.h". * config/i386/tm-nbsd.h: Update copyright year. Tweak comments. Don't include "i386/tm-i386.h". * config/i386/xm-i386.h: Update copyright year. Tweak comments. * config/i386/xm-nbsd.h: Update copyright year. Tweak comments. Include "i386/xm-i386.h". (HOST_LONG_DOUBLE_FORMAT): Remove.
2004-02-22 17:20:22 +01:00
Add support for the x86 XSAVE extended state on FreeBSD/x86. Recognize NT_X86_XSTATE notes in FreeBSD process cores. Recent FreeBSD versions include a note containing the XSAVE state for each thread in the process when XSAVE is in use. The note stores a copy of the current XSAVE mask in a reserved section of the machine-defined XSAVE state at the same offset as Linux's NT_X86_XSTATE note. For native processes, use the PT_GETXSTATE_INFO ptrace request to determine if XSAVE is enabled, and if so the active XSAVE state mask (that is, the value of %xcr0 for the target process) as well as the size of XSAVE state area. Use the PT_GETXSTATE and PT_SETXSTATE requests to fetch and store the XSAVE state, respectively, in the BSD x86 native targets. In addition, the FreeBSD amd64 and i386 native targets now include "read_description" target methods to determine the correct x86 target description for the current XSAVE mask. On FreeBSD amd64 this also properly returns an i386 target description for 32-bit binaries which allows the 64-bit GDB to run 32-bit binaries. Note that the ptrace changes are in the BSD native targets, not the FreeBSD-specific native targets since that is where the other ptrace register accesses occur. Of the other BSDs, NetBSD and DragonFly use XSAVE in the kernel but do not currently export the extended state via ptrace(2). OpenBSD does not currently support XSAVE. bfd/ChangeLog: * elf.c (elfcore_grok_note): Recognize NT_X86_XSTATE on FreeBSD. (elfcore_write_xstatereg): Use correct note name on FreeBSD. gdb/ChangeLog: * amd64-tdep.c (amd64_target_description): New function. * amd64-tdep.h: Export amd64_target_description and tdesc_amd64. * amd64bsd-nat.c [PT_GETXSTATE_INFO]: New variable amd64bsd_xsave_len. (amd64bsd_fetch_inferior_registers) [PT_GETXSTATE_INFO]: Handle x86 extended save area. (amd64bsd_store_inferior_registers) [PT_GETXSTATE_INFO]: Likewise. * amd64bsd-nat.h: Export amd64bsd_xsave_len. * amd64fbsd-nat.c (amd64fbsd_read_description): New function. (_initialize_amd64fbsd_nat): Set "to_read_description" to "amd64fbsd_read_description". * amd64fbsd-tdep.c (amd64fbsd_core_read_description): New function. (amd64fbsd_supply_xstateregset): New function. (amd64fbsd_collect_xstateregset): New function. Add "amd64fbsd_xstateregset". (amd64fbsd_iterate_over_regset_sections): New function. (amd64fbsd_init_abi): Set "xsave_xcr0_offset" to "I386_FBSD_XSAVE_XCR0_OFFSET". Add "iterate_over_regset_sections" gdbarch method. Add "core_read_description" gdbarch method. * i386-tdep.c (i386_target_description): New function. * i386-tdep.h: Export i386_target_description and tdesc_i386. * i386bsd-nat.c [PT_GETXSTATE_INFO]: New variable i386bsd_xsave_len. (i386bsd_fetch_inferior_registers) [PT_GETXSTATE_INFO]: Handle x86 extended save area. (i386bsd_store_inferior_registers) [PT_GETXSTATE_INFO]: Likewise. * i386bsd-nat.h: Export i386bsd_xsave_len. * i386fbsd-nat.c (i386fbsd_read_description): New function. (_initialize_i386fbsd_nat): Set "to_read_description" to "i386fbsd_read_description". * i386fbsd-tdep.c (i386fbsd_core_read_xcr0): New function. (i386fbsd_core_read_description): New function. (i386fbsd_supply_xstateregset): New function. (i386fbsd_collect_xstateregset): New function. Add "i386fbsd_xstateregset". (i386fbsd_iterate_over_regset_sections): New function. (i386fbsd4_init_abi): Set "xsave_xcr0_offset" to "I386_FBSD_XSAVE_XCR0_OFFSET". Add "iterate_over_regset_sections" gdbarch method. Add "core_read_description" gdbarch method. * i386fbsd-tdep.h: New file.
2015-02-21 22:43:30 +01:00
tdep->xsave_xcr0_offset = I386_FBSD_XSAVE_XCR0_OFFSET;
/* Iterate over core file register note sections. */
set_gdbarch_iterate_over_regset_sections
(gdbarch, amd64fbsd_iterate_over_regset_sections);
set_gdbarch_core_read_description (gdbarch,
amd64fbsd_core_read_description);
/* FreeBSD provides a user-level threads implementation. */
bsd_uthread_set_supply_uthread (gdbarch, amd64fbsd_supply_uthread);
bsd_uthread_set_collect_uthread (gdbarch, amd64fbsd_collect_uthread);
* amd64fbsd-tdep.c: Include "solib-svr4.h". (amd64fbsd_init_abi): Set link map offsets. * amd64nbsd-tdep.c: Include "slib-svr4.h". (amd64nbsd_init_abi): Set link map offsets. * amd64obsd-tdep.c: Include "solib-svr4.h". (amd64obsd_init_abi): Set link map offsets. * i386fbsd-tdep.c: Include "solib-svr4.h". (i386fbsd_init_abi): Set link map offsets. * i386nbsd-tdep.c: Include "solib-svr4.h". (i386nbsdelf_init_abi): Set link map offsets. * Makefile.in (amd64fbsd-tdep.o, amd64nbsd-tdep.o) (amd64obsd-tdep.o, i386fbsd-tdep.o): Update dependencies. * config/i386/fbsd.mh (NATDEPFILES): Remove solib.o, solib-svr4.o, solib-legacy.o and core-aout.o. Reformat. * config/i386/fbsd64.mh (NATDEPFILES): Remove solib.o, solib-svr4.o, solib-legacy.o. Reformat. * config/i386/nbsdaout.mh (NATDEPFILES): Add solib.o. Reformat. * config/i386/nbsdelf.mh: Reformat. * config/i386/nbsd64.mh (NATDEPFILES): Remove solib.o, solib-svr4.o, solib-legacy.o and corelow.o. * config/i386/obsd.mh, config/i386/obsdaout.mh: Reformat. * config/i386/obsd64.mh (NATDEPFILES): Remove solib.o, solib-svr4.o, solib-legacy.o and corelow.o. Reformat. * config/i386/fbsd.mt (TDEPFILES): Add solib.o, solib-svr4.o. * config/i386/fbsd64.mt (TDEPFILES): Add solib.o, solib-svr4.o. (TM_FILE): Set to tm-fbsd.h. * config/i386/nbsd.mt (TDEPFILES): Reformat. * config/i386/nbsd64.mt (TDEPFILES): Add corelow.o, solib.o and solib-svr4.o. * config/i386/obsd.mt (TDEPFILES): Add corelow.o, solib.o and solib-svr4.o. (TM_FILE): Set to nm-nbsd.h. * config/i386/nm-fbsd.h: Update copyright year. Tweak comments. Simplify shared library support. Don't include "elf/common.h". (SVR4_SHARED_LIBS): Don't define. * config/i386/nm-fbsd64.h: Update copyright year. Don't include "solib.h". * config/i386/nm-nbsd.h, config/i386/nm-nbsdaout.h, config/i386/nm-obsd.h: Update copyright year. Tweak comments. * config/i386/tm-fbsd.h: Update copyright tear. Tweak comments. Don't include "i386/tm-i386.h". Include "solib.h". * config/i386/tm-nbsd.h: Update copyright year. Tweak comments. Don't include "i386/tm-i386.h". * config/i386/xm-i386.h: Update copyright year. Tweak comments. * config/i386/xm-nbsd.h: Update copyright year. Tweak comments. Include "i386/xm-i386.h". (HOST_LONG_DOUBLE_FORMAT): Remove.
2004-02-22 17:20:22 +01:00
/* FreeBSD uses SVR4-style shared libraries. */
set_solib_svr4_fetch_link_map_offsets
(gdbarch, svr4_lp64_fetch_link_map_offsets);
}
/* Provide a prototype to silence -Wmissing-prototypes. */
void _initialize_amd64fbsd_tdep (void);
void
_initialize_amd64fbsd_tdep (void)
{
gdbarch_register_osabi (bfd_arch_i386, bfd_mach_x86_64,
GDB_OSABI_FREEBSD_ELF, amd64fbsd_init_abi);
}