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author | jkim <jkim@FreeBSD.org> | 2010-02-25 21:29:00 +0000 |
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committer | jkim <jkim@FreeBSD.org> | 2010-02-25 21:29:00 +0000 |
commit | 89265a4363aa6c1a99939be91f6a5b200c414f38 (patch) | |
tree | 7e218c8ffffcfaa28e02108161db6b514e6b2a07 /gnu | |
parent | c4824258ac63daf2154aa6d6d3270f96dc7d4e1a (diff) | |
download | FreeBSD-src-89265a4363aa6c1a99939be91f6a5b200c414f38.zip FreeBSD-src-89265a4363aa6c1a99939be91f6a5b200c414f38.tar.gz |
Initial gdbserver support for amd64.
Diffstat (limited to 'gnu')
-rw-r--r-- | gnu/usr.bin/gdb/Makefile | 2 | ||||
-rw-r--r-- | gnu/usr.bin/gdb/gdbserver/Makefile | 8 | ||||
-rw-r--r-- | gnu/usr.bin/gdb/gdbserver/fbsd-amd64-low.c | 213 | ||||
-rw-r--r-- | gnu/usr.bin/gdb/gdbserver/reg-x86-64.c | 99 |
4 files changed, 319 insertions, 3 deletions
diff --git a/gnu/usr.bin/gdb/Makefile b/gnu/usr.bin/gdb/Makefile index 4c10759..81a1d6c 100644 --- a/gnu/usr.bin/gdb/Makefile +++ b/gnu/usr.bin/gdb/Makefile @@ -2,7 +2,7 @@ SUBDIR= doc libgdb gdb gdbtui kgdb -.if ${MACHINE_ARCH} == "i386" || ${MACHINE_ARCH} == "arm" || ${MACHINE_ARCH} == "powerpc" +.if ${MACHINE_ARCH} == "amd64" || ${MACHINE_ARCH} == "arm" || ${MACHINE_ARCH} == "i386" || ${MACHINE_ARCH} == "powerpc" SUBDIR+=gdbserver .endif diff --git a/gnu/usr.bin/gdb/gdbserver/Makefile b/gnu/usr.bin/gdb/gdbserver/Makefile index 9f84f6f..390ef32 100644 --- a/gnu/usr.bin/gdb/gdbserver/Makefile +++ b/gnu/usr.bin/gdb/gdbserver/Makefile @@ -14,14 +14,18 @@ SRCS= inferiors.c mem-break.c regcache.c remote-utils.c \ server.c signals.c target.c utils.c SRCS+= fbsd-low.c -.if ${MACHINE_ARCH} == "i386" -SRCS+= fbsd-i386-low.c i387-fp.c reg-i386.c +.if ${MACHINE_ARCH} == "amd64" +SRCS+= fbsd-amd64-low.c i387-fp.c reg-x86-64.c .endif .if ${MACHINE_ARCH} == "arm" SRCS+= fbsd-arm-low.c reg-arm.c .endif +.if ${MACHINE_ARCH} == "i386" +SRCS+= fbsd-i386-low.c i387-fp.c reg-i386.c +.endif + .if ${MACHINE_ARCH} == "powerpc" SRCS+= fbsd-ppc-low.c reg-ppc.c .endif diff --git a/gnu/usr.bin/gdb/gdbserver/fbsd-amd64-low.c b/gnu/usr.bin/gdb/gdbserver/fbsd-amd64-low.c new file mode 100644 index 0000000..82a8c93 --- /dev/null +++ b/gnu/usr.bin/gdb/gdbserver/fbsd-amd64-low.c @@ -0,0 +1,213 @@ +/* GNU/FreeBSD/amd64 specific low level interface, for the remote server for GDB. + Copyright 1995, 1996, 1998, 1999, 2000, 2001, 2002 + Free Software Foundation, Inc. + + This file is part of GDB. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include "server.h" +#include "fbsd-low.h" +#include "i387-fp.h" + +#include <sys/stddef.h> +#include <sys/types.h> +#include <sys/ptrace.h> +#include <machine/reg.h> + +/* Mapping between the general-purpose registers in `struct user' + format and GDB's register array layout. */ +static int amd64_regmap[] = { + offsetof(struct reg, r_rax), + offsetof(struct reg, r_rbx), + offsetof(struct reg, r_rcx), + offsetof(struct reg, r_rdx), + offsetof(struct reg, r_rsi), + offsetof(struct reg, r_rdi), + offsetof(struct reg, r_rbp), + offsetof(struct reg, r_rsp), + offsetof(struct reg, r_r8), + offsetof(struct reg, r_r9), + offsetof(struct reg, r_r10), + offsetof(struct reg, r_r11), + offsetof(struct reg, r_r12), + offsetof(struct reg, r_r13), + offsetof(struct reg, r_r14), + offsetof(struct reg, r_r15), + offsetof(struct reg, r_rip), + offsetof(struct reg, r_rflags), /* XXX 64-bit */ + offsetof(struct reg, r_cs), + offsetof(struct reg, r_ss), + offsetof(struct reg, r_ds), + offsetof(struct reg, r_es), + offsetof(struct reg, r_fs), + offsetof(struct reg, r_gs), +}; +#define AMD64_NUM_REGS (sizeof(amd64_regmap) / sizeof(amd64_regmap[0])) + +static const char amd64_breakpoint[] = { 0xCC }; +#define AMD64_BP_LEN 1 + +extern int debug_threads; + +static int +amd64_cannot_store_register(int regno) +{ + + return (regno >= AMD64_NUM_REGS); +} + +static int +amd64_cannot_fetch_register(int regno) +{ + + return (regno >= AMD64_NUM_REGS); +} + +static void +amd64_fill_gregset(void *buf) +{ + int i; + + for (i = 0; i < AMD64_NUM_REGS; i++) + collect_register(i, ((char *)buf) + amd64_regmap[i]); +} + +static void +amd64_store_gregset(const void *buf) +{ + int i; + + for (i = 0; i < AMD64_NUM_REGS; i++) + supply_register(i, ((char *)buf) + amd64_regmap[i]); +} + +static void +amd64_fill_fpregset(void *buf) +{ + + i387_cache_to_fsave(buf); +} + +static void +amd64_store_fpregset(const void *buf) +{ + + i387_fsave_to_cache(buf); +} + +static void +amd64_fill_fpxregset(void *buf) +{ + + i387_cache_to_fxsave(buf); +} + +static void +amd64_store_fpxregset(const void *buf) +{ + + i387_fxsave_to_cache(buf); +} + + +struct regset_info target_regsets[] = { + { + PT_GETREGS, + PT_SETREGS, + sizeof(struct reg), + GENERAL_REGS, + amd64_fill_gregset, + amd64_store_gregset, + }, +#ifdef HAVE_PTRACE_GETFPXREGS + { + PTRACE_GETFPXREGS, + PTRACE_SETFPXREGS, + sizeof(elf_fpxregset_t), + EXTENDED_REGS, + amd64_fill_fpxregset, + amd64_store_fpxregset, + }, +#endif + { + PT_GETFPREGS, + PT_SETFPREGS, + sizeof(struct fpreg), + FP_REGS, + amd64_fill_fpregset, + amd64_store_fpregset, + }, + { + 0, + 0, + -1, + -1, + NULL, + NULL, + } +}; + +static CORE_ADDR +amd64_get_pc(void) +{ + unsigned long pc; + + collect_register_by_name("rip", &pc); + + if (debug_threads) + fprintf(stderr, "stop pc (before any decrement) is %016lx\n", pc); + + return (pc); +} + +static void +amd64_set_pc(CORE_ADDR newpc) +{ + + if (debug_threads) + fprintf(stderr, "set pc to %016lx\n", (long)newpc); + supply_register_by_name("rip", &newpc); +} + +static int +amd64_breakpoint_at(CORE_ADDR pc) +{ + unsigned char c; + + read_inferior_memory(pc, &c, 1); + if (c == 0xCC) + return (1); + + return (0); +} + +struct fbsd_target_ops the_low_target = { + AMD64_NUM_REGS, + amd64_regmap, + amd64_cannot_fetch_register, + amd64_cannot_store_register, + amd64_get_pc, + amd64_set_pc, + amd64_breakpoint, + AMD64_BP_LEN, + NULL, + 1, + amd64_breakpoint_at, +}; diff --git a/gnu/usr.bin/gdb/gdbserver/reg-x86-64.c b/gnu/usr.bin/gdb/gdbserver/reg-x86-64.c new file mode 100644 index 0000000..7b0534f --- /dev/null +++ b/gnu/usr.bin/gdb/gdbserver/reg-x86-64.c @@ -0,0 +1,99 @@ +/* *INDENT-OFF* */ /* THIS FILE IS GENERATED */ + +/* A register protocol for GDB, the GNU debugger. + Copyright 2001, 2002 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. */ + +/* This file was created with the aid of ``regdat.sh'' and ``../../../../contrib/gdb/gdb/regformats/reg-x86-64.dat''. */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include "regdef.h" +#include "regcache.h" + +struct reg regs_x86_64[] = { + { "rax", 0, 64 }, + { "rbx", 64, 64 }, + { "rcx", 128, 64 }, + { "rdx", 192, 64 }, + { "rsi", 256, 64 }, + { "rdi", 320, 64 }, + { "rbp", 384, 64 }, + { "rsp", 448, 64 }, + { "r8", 512, 64 }, + { "r9", 576, 64 }, + { "r10", 640, 64 }, + { "r11", 704, 64 }, + { "r12", 768, 64 }, + { "r13", 832, 64 }, + { "r14", 896, 64 }, + { "r15", 960, 64 }, + { "rip", 1024, 64 }, + { "eflags", 1088, 32 }, + { "cs", 1120, 32 }, + { "ss", 1152, 32 }, + { "ds", 1184, 32 }, + { "es", 1216, 32 }, + { "fs", 1248, 32 }, + { "gs", 1280, 32 }, + { "st0", 1312, 80 }, + { "st1", 1392, 80 }, + { "st2", 1472, 80 }, + { "st3", 1552, 80 }, + { "st4", 1632, 80 }, + { "st5", 1712, 80 }, + { "st6", 1792, 80 }, + { "st7", 1872, 80 }, + { "fctrl", 1952, 32 }, + { "fstat", 1984, 32 }, + { "ftag", 2016, 32 }, + { "fiseg", 2048, 32 }, + { "fioff", 2080, 32 }, + { "foseg", 2112, 32 }, + { "fooff", 2144, 32 }, + { "fop", 2176, 32 }, + { "xmm0", 2208, 128 }, + { "xmm1", 2336, 128 }, + { "xmm2", 2464, 128 }, + { "xmm3", 2592, 128 }, + { "xmm4", 2720, 128 }, + { "xmm5", 2848, 128 }, + { "xmm6", 2976, 128 }, + { "xmm7", 3104, 128 }, + { "xmm8", 3232, 128 }, + { "xmm9", 3360, 128 }, + { "xmm10", 3488, 128 }, + { "xmm11", 3616, 128 }, + { "xmm12", 3744, 128 }, + { "xmm13", 3872, 128 }, + { "xmm14", 4000, 128 }, + { "xmm15", 4128, 128 }, + { "mxcsr", 4256, 32 }, +}; + +const char *expedite_regs_x86_64[] = { "rbp", "rsp", "rip", 0 }; + +void +init_registers () +{ + set_register_cache (regs_x86_64, + sizeof (regs_x86_64) / sizeof (regs_x86_64[0])); + gdbserver_expedite_regs = expedite_regs_x86_64; +} |