diff options
Diffstat (limited to 'gnu/usr.bin/gdb/kgdb/trgt_amd64.c')
| -rw-r--r-- | gnu/usr.bin/gdb/kgdb/trgt_amd64.c | 212 |
1 files changed, 0 insertions, 212 deletions
diff --git a/gnu/usr.bin/gdb/kgdb/trgt_amd64.c b/gnu/usr.bin/gdb/kgdb/trgt_amd64.c deleted file mode 100644 index ec0ac0180338..000000000000 --- a/gnu/usr.bin/gdb/kgdb/trgt_amd64.c +++ /dev/null @@ -1,212 +0,0 @@ -/* - * Copyright (c) 2004 Marcel Moolenaar - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. - * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <sys/types.h> -#include <machine/pcb.h> -#include <machine/frame.h> -#include <err.h> -#include <kvm.h> -#include <string.h> - -#include <defs.h> -#include <target.h> -#include <gdbthread.h> -#include <inferior.h> -#include <regcache.h> -#include <frame-unwind.h> -#include <amd64-tdep.h> - -#include "kgdb.h" - -CORE_ADDR -kgdb_trgt_core_pcb(u_int cpuid) -{ - return (kgdb_trgt_stop_pcb(cpuid, sizeof(struct pcb))); -} - -void -kgdb_trgt_fetch_registers(int regno __unused) -{ - struct kthr *kt; - struct pcb pcb; - - kt = kgdb_thr_lookup_tid(ptid_get_pid(inferior_ptid)); - if (kt == NULL) - return; - if (kvm_read(kvm, kt->pcb, &pcb, sizeof(pcb)) != sizeof(pcb)) { - warnx("kvm_read: %s", kvm_geterr(kvm)); - memset(&pcb, 0, sizeof(pcb)); - } - - supply_register(AMD64_RBX_REGNUM, (char *)&pcb.pcb_rbx); - supply_register(AMD64_RBP_REGNUM, (char *)&pcb.pcb_rbp); - supply_register(AMD64_RSP_REGNUM, (char *)&pcb.pcb_rsp); - supply_register(AMD64_R8_REGNUM + 4, (char *)&pcb.pcb_r12); - supply_register(AMD64_R8_REGNUM + 5, (char *)&pcb.pcb_r13); - supply_register(AMD64_R8_REGNUM + 6, (char *)&pcb.pcb_r14); - supply_register(AMD64_R15_REGNUM, (char *)&pcb.pcb_r15); - supply_register(AMD64_RIP_REGNUM, (char *)&pcb.pcb_rip); -} - -void -kgdb_trgt_store_registers(int regno __unused) -{ - fprintf_unfiltered(gdb_stderr, "XXX: %s\n", __func__); -} - -void -kgdb_trgt_new_objfile(struct objfile *objfile) -{ -} - -struct kgdb_frame_cache { - CORE_ADDR pc; - CORE_ADDR sp; -}; - -static int kgdb_trgt_frame_offset[20] = { - offsetof(struct trapframe, tf_rax), - offsetof(struct trapframe, tf_rbx), - offsetof(struct trapframe, tf_rcx), - offsetof(struct trapframe, tf_rdx), - offsetof(struct trapframe, tf_rsi), - offsetof(struct trapframe, tf_rdi), - offsetof(struct trapframe, tf_rbp), - offsetof(struct trapframe, tf_rsp), - offsetof(struct trapframe, tf_r8), - offsetof(struct trapframe, tf_r9), - offsetof(struct trapframe, tf_r10), - offsetof(struct trapframe, tf_r11), - offsetof(struct trapframe, tf_r12), - offsetof(struct trapframe, tf_r13), - offsetof(struct trapframe, tf_r14), - offsetof(struct trapframe, tf_r15), - offsetof(struct trapframe, tf_rip), - offsetof(struct trapframe, tf_rflags), - offsetof(struct trapframe, tf_cs), - offsetof(struct trapframe, tf_ss) -}; - -static struct kgdb_frame_cache * -kgdb_trgt_frame_cache(struct frame_info *next_frame, void **this_cache) -{ - char buf[MAX_REGISTER_SIZE]; - struct kgdb_frame_cache *cache; - - cache = *this_cache; - if (cache == NULL) { - cache = FRAME_OBSTACK_ZALLOC(struct kgdb_frame_cache); - *this_cache = cache; - cache->pc = frame_func_unwind(next_frame); - frame_unwind_register(next_frame, SP_REGNUM, buf); - cache->sp = extract_unsigned_integer(buf, - register_size(current_gdbarch, SP_REGNUM)); - } - return (cache); -} - -static void -kgdb_trgt_trapframe_this_id(struct frame_info *next_frame, void **this_cache, - struct frame_id *this_id) -{ - struct kgdb_frame_cache *cache; - - cache = kgdb_trgt_frame_cache(next_frame, this_cache); - *this_id = frame_id_build(cache->sp, cache->pc); -} - -static void -kgdb_trgt_trapframe_prev_register(struct frame_info *next_frame, - void **this_cache, int regnum, int *optimizedp, enum lval_type *lvalp, - CORE_ADDR *addrp, int *realnump, void *valuep) -{ - char dummy_valuep[MAX_REGISTER_SIZE]; - struct kgdb_frame_cache *cache; - int ofs, regsz; - - regsz = register_size(current_gdbarch, regnum); - - if (valuep == NULL) - valuep = dummy_valuep; - memset(valuep, 0, regsz); - *optimizedp = 0; - *addrp = 0; - *lvalp = not_lval; - *realnump = -1; - - ofs = (regnum >= AMD64_RAX_REGNUM && regnum <= AMD64_EFLAGS_REGNUM + 2) - ? kgdb_trgt_frame_offset[regnum] : -1; - if (ofs == -1) - return; - - cache = kgdb_trgt_frame_cache(next_frame, this_cache); - *addrp = cache->sp + ofs; - *lvalp = lval_memory; - target_read_memory(*addrp, valuep, regsz); -} - -static const struct frame_unwind kgdb_trgt_trapframe_unwind = { - UNKNOWN_FRAME, - &kgdb_trgt_trapframe_this_id, - &kgdb_trgt_trapframe_prev_register -}; - -const struct frame_unwind * -kgdb_trgt_trapframe_sniffer(struct frame_info *next_frame) -{ - char *pname; - CORE_ADDR pc; - - pc = frame_pc_unwind(next_frame); - pname = NULL; - find_pc_partial_function(pc, &pname, NULL, NULL); - if (pname == NULL) - return (NULL); - if (strcmp(pname, "calltrap") == 0 || - strcmp(pname, "fast_syscall_common") == 0 || - strcmp(pname, "mchk_calltrap") == 0 || - strcmp(pname, "nmi_calltrap") == 0 || - (pname[0] == 'X' && pname[1] != '_')) - return (&kgdb_trgt_trapframe_unwind); - /* printf("%s: %lx =%s\n", __func__, pc, pname); */ - return (NULL); -} - -/* - * This function ensures, that the PC is inside the - * function section which is understood by GDB. - * - * Return 0 when fixup is necessary, -1 otherwise. - */ -int -kgdb_trgt_pc_fixup(CORE_ADDR *pc __unused) -{ - - return (-1); -} |