forked from Imagelibrary/binutils-gdb
* x86-64-tdep.h (x86_64_num_regs, x86_64_num_gregs): Remove
variable declarations. (x86_64_register_number, x86_64_register_name): Remove prototypes. (x86_64_linux_frame_saved_pc, x86_64_linux+saved_pc_after_call, x86_64_linux_in_sigtramp, x86_64_linux_frame_chain, x86_64_init_frame_pc, x86_64_init_frame_pc, x86_64_function_has_prologue): Remove prototypes. (X86_64_NUM_GREGS): New define. (x86_64_supply_fxsave, x86_64_fill_fxsave): New prototypes. * x86-64-tdep.c: Don't include "dwarf2cfi.h". Include "dummy_frame.h", "frame.h", "frame-base.h", "frame-unwind.h". (RAX_REGNUM, RDX_REGNUM, RDI_REGNUM, EFLAGS_REGNUM, ST0_REGNUM, XMM1_REGNUM): Remove defines. (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): New defines. (struct x86_64_register_info): Renamed from `struct register_info'. Remove `size' member. (x86_64_register_info_table): Remove variable. (x86_64_register_info): New variable. (X86_64_NUM_REGS): New define. (X86_64_NUM_GREGS): Remove define. (x86_64_num_regs, x86_64_num_gregs): Remove variables. (x86_64_dwarf2gdb_regno_map, x86_64_dwarf2gdb_regno_map_length): Remove variables. (x86_54_dwarf2_reg_to_regnum): Remove function. (x86_64_dwarf_regmap, x86_64_dwarf_regmap_len): New variables. (x86_64_dwarf_reg_to_regnum): New function. (x86_64_register_name): Rewrite. (x86_64_register_raw_size): Remove function. (x86_64_register_byte_table): Remove variable. (x86_64_register_byte): Remove function. (x86_64_register_virtual_type): Remove function. (x86_64_register_type): New function. (x86_64_register_convertible, x86_64_register_convert_to_virtual, x86_64_register_convert_to_raw): Remove functions. (x86_64_push_return_address, x86_64_pop_frame): Remove functon. (x86_64_use_struct_convention): Make static. Adjust for renamed defines. (x86_64_frame_init_saved_regs): Remove function. (x86_64_push_arguments): Make static. Change to accept a regcache as argument. (x86_64_store_return_value, x86_64_extract_return_value): Make static. Rewrite based on i386 counterparts. (x86_64_push_dummy_call): New function. (X86_64_NUM_SAVED_REGS): New define. (x86_64_register_number): Remove function. (x86_64_store_struct_return): Remove function. (x86_64_frameless_function_invocation, x86_64_function_has_prologue): Remove functions. (PROLOG_BUFSIZE): Remove define. (struct x86_64_frame_cache): New structure. (x86_64_alloc_frame_cache, x86_64_analyze_prologue, x86_64_frame_cache, x86_64_frame_this_id, x86_64_frame_prev_register, x86_64_frame_p, x86_64_sigtramp_frame_cache, x86_64_sigtramp_frame_this_id, x86_64_sigtramp_frame_prev_register, x86_sigtramp_frame_p): New functions. (x86_64_frame_unwind, x86_64_sigtramp_frame_unwind): New variables. (x86_64_skip_prologue): Rewrite in terms of x86_64_analyze_prologue. (x86_64_frame_base_address): New function. (x86_64_frame_base): New variable. (x86_64_save_dummy_frame_tos, x86_64_unwind_dummy_id): Rewrite. (x86_64_init_abi): Set register_type and push_dummy_call. Don't set deprecated_fp_regnum, deprecated_register_size, deprecated_register_bytes, register_raw_size, register_byte, register_virtual_type, register_convertiable, register_convert_to_virtual, convert_to_raw, deprecated_get_saved_register, deprecated_target_read_fp, deprecated_push_arguments, deprecated_push_return_address, deprecated_pop_frame, deprecated_store_struct_return, deprecated_frame_init_saved_regs, deprecated_frame_chain, frameless_function_invocation, deprecated_frame_saved_pc, deprecated_saved_pc_after_call, frame_num_args, pc_in_sigtramp, dwarf2_build_frame_info, deprecated_init_extra_frame_info, deprecated_init_frame_pc and virtual_frame_pointer. Call frame_unwind_append_predicate to register x86_64_sigtramp_frame_p and x86_64_frame_p. Call frame_base_set_default to register x86_64_frame_base. (I387_FISEG_REGNUM, I387_FOSEG_REGNUM): New defines. (x86_64_supply_fxsave, x86_64_fill_fxsave): New functions. (_initialize_x86_64_tdep): Remove function. * x86-64-linux-tdep.c: Don't include "dwarf2cfi.h". (LINUX_SIGINFO_SIZE, LINUX_UCONTEXT_SIGCONTEXT_OFFSET, LINUX_SIGCONTEXT_PC_OFFSET, LINUX_SIGCONTEXT_FP_OFFSET): Don't define. (X86_64_LINUX_UCONTEXT_SIGCONTEXT_OFFSET): Define. (x86_64_linux_sigcontext_addr): Rewrite. (x86_64_linux_sigtramp_saved_pc, x86_64_linux_saved_pc_after_call, x86_64_linux_frame_saved_pc): Remove functions. (x86_64_linux_pc_in_sigtramp): Renamed from x86_64_linux_in_sigtramp. Try harder to recognize a signal trampoline. (x86_64_linux_frame_chain, x86_64_init_frame_pc): Remove_functions. (x86_64_linux_init_abi): Set pc_in_sigtramp. Initialize TDEP->sigcontext_addr, TDEP->sc_pc_offset and TDEP->sc_sp_offset. * x86-64-linux-nat.c: Sync with i386-linux-tdep.c. (x86_64_regmap): Rename to regmap. (GETREGS_SUPPLIES): Use X86_64_NUM_GREGS instead of x86_64_num_gregs. (supply_gregset, fill_gregset): Likewise. Use regmap instead of x86_64_regmap. (x86_64_fxsave_offset): Remove function. (supply_fpregset): Simply call x86_64_supply_fxsave. (fill_fpregset): Simply call x86_64_fill_fxsave. (fetch_inferior_registers, store_inferior_registers): Avoid asignment in if-statement. (LINUX_SYSCALL_LEN, LINUX_SYSCALL_REGNUM, SYS_Sigreturn, SYS_rt_sigreturn, LINUX_SIGCONTEXT_EFLAGS_OFFSET, LINUX_UCONTEXT_SIGCONTEXT_OFFSET): Remove defines. (fetch_core_registers): Remove function. (linux_elf_core_fns): Remove. (offsetoff): Don't define. (_initialize_x86_64_linux_nat, kernel_u_size): Remove functions. * config/i386/x86-64linux.mt (TDEPFILES): Add i386-linux-tdep.o. * config/i386/x86-64linux.mh (NATDEPFILES): Remove core-aout.o, add core-regset.o. * config/i386/nm-x86-64linux.h: Use NM_X86_64_LINUX_H for protection against multiple includes instead of NM_X86_64_h. Add various comments. Include "config/nm-linux.h". Don't include <signal.h>. (REGISTER_U_ADDR, KERNEL_U_SIZE, U_REGS_OFFSET, KERN_U_ADDR, GET_THREAD_SIGNALS): Remove defines. (x86_64_register_u_addr, kernel_u_size, lin_thread_get_thread_signals): Remove prototypes. (PTRACE_ARG3_TYPE, PTRACE_XFER_TYPE): Define to `long'. [HAVE_LINK_H]: Don't include "solib.h". [HAVE_LINK_H] (SVR4_SHARED_LIBS): Remove define. * config/i386/tm-x86-64linux.h: Fix comments. * Makefile.in (x86-64-linux-nat.o, x86_64-linux-tdep.o, x86-64-tdep.o): Update dependencies.
This commit is contained in:
Mark Kettenis
@@ -25,20 +25,30 @@
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#include "inferior.h"
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#include "gdbcore.h"
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#include "regcache.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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#include <sys/ptrace.h>
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#include <sys/debugreg.h>
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#include <sys/syscall.h>
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#include <sys/procfs.h>
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#include <sys/reg.h>
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/* Prototypes for supply_gregset etc. */
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#include "gregset.h"
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#include "x86-64-tdep.h"
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/* The register sets used in GNU/Linux ELF core-dumps are identical to
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the register sets used by `ptrace'. The corresponding types are
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`elf_gregset_t' for the general-purpose registers (with
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`elf_greg_t' the type of a single GP register) and `elf_fpregset_t'
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for the floating-point registers.
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/* Mapping between the general-purpose registers in `struct user'
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format and GDB's register array layout. */
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static int x86_64_regmap[] = {
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static int regmap[] =
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{
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RAX, RBX, RCX, RDX,
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RSI, RDI, RBP, RSP,
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R8, R9, R10, R11,
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@@ -47,6 +57,209 @@ static int x86_64_regmap[] = {
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DS, ES, FS, GS
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};
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/* Which ptrace request retrieves which registers?
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These apply to the corresponding SET requests as well. */
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#define GETREGS_SUPPLIES(regno) \
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(0 <= (regno) && (regno) < X86_64_NUM_GREGS)
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#define GETFPREGS_SUPPLIES(regno) \
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(FP0_REGNUM <= (regno) && (regno) <= MXCSR_REGNUM)
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/* Transfering the general-purpose registers between GDB, inferiors
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and core files. */
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/* Fill GDB's register array with the general-purpose register values
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in *GREGSETP. */
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void
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supply_gregset (elf_gregset_t *gregsetp)
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{
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elf_greg_t *regp = (elf_greg_t *) gregsetp;
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int i;
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for (i = 0; i < X86_64_NUM_GREGS; i++)
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supply_register (i, regp + regmap[i]);
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}
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/* Fill register REGNO (if it is a general-purpose register) in
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*GREGSETPS with the value in GDB's register array. If REGNO is -1,
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do this for all registers. */
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void
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fill_gregset (elf_gregset_t *gregsetp, int regno)
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{
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elf_greg_t *regp = (elf_greg_t *) gregsetp;
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int i;
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for (i = 0; i < X86_64_NUM_GREGS; i++)
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if (regno == -1 || regno == i)
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regcache_collect (i, regp + regmap[i]);
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}
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/* Fetch all general-purpose registers from process/thread TID and
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store their values in GDB's register array. */
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static void
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fetch_regs (int tid)
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{
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elf_gregset_t regs;
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if (ptrace (PTRACE_GETREGS, tid, 0, (long) ®s) < 0)
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perror_with_name ("Couldn't get registers");
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supply_gregset (®s);
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}
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/* Store all valid general-purpose registers in GDB's register array
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into the process/thread specified by TID. */
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static void
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store_regs (int tid, int regno)
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{
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elf_gregset_t regs;
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if (ptrace (PTRACE_GETREGS, tid, 0, (long) ®s) < 0)
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perror_with_name ("Couldn't get registers");
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fill_gregset (®s, regno);
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if (ptrace (PTRACE_SETREGS, tid, 0, (long) ®s) < 0)
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perror_with_name ("Couldn't write registers");
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}
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/* Transfering floating-point registers between GDB, inferiors and cores. */
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/* Fill GDB's register array with the floating-point and SSE register
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values in *FPREGSETP. */
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void
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supply_fpregset (elf_fpregset_t *fpregsetp)
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{
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x86_64_supply_fxsave ((char *) fpregsetp);
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}
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/* Fill register REGNUM (if it is a floating-point or SSE register) in
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*FPREGSETP with the value in GDB's register array. If REGNUM is
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-1, do this for all registers. */
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void
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fill_fpregset (elf_fpregset_t *fpregsetp, int regnum)
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{
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x86_64_fill_fxsave ((char *) fpregsetp, regnum);
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}
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/* Fetch all floating-point registers from process/thread TID and store
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thier values in GDB's register array. */
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static void
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fetch_fpregs (int tid)
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{
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elf_fpregset_t fpregs;
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if (ptrace (PTRACE_GETFPREGS, tid, 0, (long) &fpregs) < 0)
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perror_with_name ("Couldn't get floating point status");
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supply_fpregset (&fpregs);
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}
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/* Store all valid floating-point registers in GDB's register array
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into the process/thread specified by TID. */
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static void
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store_fpregs (int tid, int regno)
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{
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elf_fpregset_t fpregs;
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if (ptrace (PTRACE_GETFPREGS, tid, 0, (long) &fpregs) < 0)
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perror_with_name ("Couldn't get floating point status");
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fill_fpregset (&fpregs, regno);
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if (ptrace (PTRACE_SETFPREGS, tid, 0, (long) &fpregs) < 0)
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perror_with_name ("Couldn't write floating point status");
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}
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/* Transferring arbitrary registers between GDB and inferior. */
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/* Fetch register REGNO from the child process. If REGNO is -1, do
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this for all registers (including the floating point and SSE
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registers). */
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void
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fetch_inferior_registers (int regno)
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{
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int tid;
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/* GNU/Linux LWP ID's are process ID's. */
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tid = TIDGET (inferior_ptid);
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if (tid == 0)
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tid = PIDGET (inferior_ptid); /* Not a threaded program. */
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if (regno == -1)
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{
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fetch_regs (tid);
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fetch_fpregs (tid);
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return;
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}
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if (GETREGS_SUPPLIES (regno))
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{
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fetch_regs (tid);
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return;
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}
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if (GETFPREGS_SUPPLIES (regno))
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{
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fetch_fpregs (tid);
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return;
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}
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internal_error (__FILE__, __LINE__,
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"Got request for bad register number %d.", regno);
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}
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/* Store register REGNO back into the child process. If REGNO is -1,
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do this for all registers (including the floating-point and SSE
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registers). */
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void
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store_inferior_registers (int regno)
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{
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int tid;
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/* GNU/Linux LWP ID's are process ID's. */
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tid = TIDGET (inferior_ptid);
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if (tid == 0)
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tid = PIDGET (inferior_ptid); /* Not a threaded program. */
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if (regno == -1)
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{
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store_regs (tid, regno);
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store_fpregs (tid, regno);
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return;
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}
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if (GETREGS_SUPPLIES (regno))
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{
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store_regs (tid, regno);
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return;
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}
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if (GETFPREGS_SUPPLIES (regno))
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{
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store_fpregs (tid, regno);
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return;
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}
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internal_error (__FILE__, __LINE__,
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"Got request to store bad register number %d.", regno);
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}
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static unsigned long
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x86_64_linux_dr_get (int regnum)
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{
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@@ -119,374 +332,3 @@ x86_64_linux_dr_get_status (void)
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{
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return x86_64_linux_dr_get (DR_STATUS);
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}
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/* The register sets used in GNU/Linux ELF core-dumps are identical to
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the register sets used by `ptrace'. */
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#define GETREGS_SUPPLIES(regno) \
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(0 <= (regno) && (regno) < x86_64_num_gregs)
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#define GETFPREGS_SUPPLIES(regno) \
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(FP0_REGNUM <= (regno) && (regno) <= MXCSR_REGNUM)
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/* Transfering the general-purpose registers between GDB, inferiors
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and core files. */
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/* Fill GDB's register array with the general-purpose register values
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in *GREGSETP. */
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void
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supply_gregset (elf_gregset_t * gregsetp)
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{
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elf_greg_t *regp = (elf_greg_t *) gregsetp;
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int i;
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for (i = 0; i < x86_64_num_gregs; i++)
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supply_register (i, (char *) (regp + x86_64_regmap[i]));
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}
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/* Fill register REGNO (if it is a general-purpose register) in
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*GREGSETPS with the value in GDB's register array. If REGNO is -1,
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do this for all registers. */
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void
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fill_gregset (elf_gregset_t * gregsetp, int regno)
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{
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elf_greg_t *regp = (elf_greg_t *) gregsetp;
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int i;
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for (i = 0; i < x86_64_num_gregs; i++)
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if ((regno == -1 || regno == i))
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regcache_collect (i, (char *) (regp + x86_64_regmap[i]));
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}
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/* Fetch all general-purpose registers from process/thread TID and
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store their values in GDB's register array. */
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static void
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fetch_regs (int tid)
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{
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elf_gregset_t regs;
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if (ptrace (PTRACE_GETREGS, tid, 0, (long) ®s) < 0)
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perror_with_name ("Couldn't get registers");
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supply_gregset (®s);
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}
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/* Store all valid general-purpose registers in GDB's register array
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into the process/thread specified by TID. */
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static void
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store_regs (int tid, int regno)
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{
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elf_gregset_t regs;
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if (ptrace (PTRACE_GETREGS, tid, 0, (long) ®s) < 0)
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perror_with_name ("Couldn't get registers");
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fill_gregset (®s, regno);
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if (ptrace (PTRACE_SETREGS, tid, 0, (long) ®s) < 0)
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perror_with_name ("Couldn't write registers");
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}
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/* Transfering floating-point registers between GDB, inferiors and cores. */
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static void *
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x86_64_fxsave_offset (elf_fpregset_t * fxsave, int regnum)
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{
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const char *reg_name;
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int reg_index;
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gdb_assert (x86_64_num_gregs - 1 < regnum && regnum < x86_64_num_regs);
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reg_name = x86_64_register_name (regnum);
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if (reg_name[0] == 's' && reg_name[1] == 't')
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{
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reg_index = reg_name[2] - '0';
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return &fxsave->st_space[reg_index * 2];
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}
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if (reg_name[0] == 'x' && reg_name[1] == 'm' && reg_name[2] == 'm')
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{
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reg_index = reg_name[3] - '0';
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return &fxsave->xmm_space[reg_index * 4];
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}
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if (strcmp (reg_name, "mxcsr") == 0)
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return &fxsave->mxcsr;
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return NULL;
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}
|
||||
|
||||
/* Fill GDB's register array with the floating-point and SSE register
|
||||
values in *FXSAVE. This function masks off any of the reserved
|
||||
bits in *FXSAVE. */
|
||||
|
||||
void
|
||||
supply_fpregset (elf_fpregset_t * fxsave)
|
||||
{
|
||||
int i, reg_st0, reg_mxcsr;
|
||||
|
||||
reg_st0 = x86_64_register_number ("st0");
|
||||
reg_mxcsr = x86_64_register_number ("mxcsr");
|
||||
|
||||
gdb_assert (reg_st0 > 0 && reg_mxcsr > reg_st0);
|
||||
|
||||
for (i = reg_st0; i <= reg_mxcsr; i++)
|
||||
supply_register (i, x86_64_fxsave_offset (fxsave, i));
|
||||
}
|
||||
|
||||
/* Fill register REGNUM (if it is a floating-point or SSE register) in
|
||||
*FXSAVE with the value in GDB's register array. If REGNUM is -1, do
|
||||
this for all registers. This function doesn't touch any of the
|
||||
reserved bits in *FXSAVE. */
|
||||
|
||||
void
|
||||
fill_fpregset (elf_fpregset_t * fxsave, int regnum)
|
||||
{
|
||||
int i, last_regnum = MXCSR_REGNUM;
|
||||
void *ptr;
|
||||
|
||||
if (gdbarch_tdep (current_gdbarch)->num_xmm_regs == 0)
|
||||
last_regnum = FOP_REGNUM;
|
||||
|
||||
for (i = FP0_REGNUM; i <= last_regnum; i++)
|
||||
if (regnum == -1 || regnum == i)
|
||||
{
|
||||
ptr = x86_64_fxsave_offset (fxsave, i);
|
||||
if (ptr)
|
||||
regcache_collect (i, ptr);
|
||||
}
|
||||
}
|
||||
|
||||
/* Fetch all floating-point registers from process/thread TID and store
|
||||
thier values in GDB's register array. */
|
||||
|
||||
static void
|
||||
fetch_fpregs (int tid)
|
||||
{
|
||||
elf_fpregset_t fpregs;
|
||||
|
||||
if (ptrace (PTRACE_GETFPREGS, tid, 0, (long) &fpregs) < 0)
|
||||
perror_with_name ("Couldn't get floating point status");
|
||||
|
||||
supply_fpregset (&fpregs);
|
||||
}
|
||||
|
||||
/* Store all valid floating-point registers in GDB's register array
|
||||
into the process/thread specified by TID. */
|
||||
|
||||
static void
|
||||
store_fpregs (int tid, int regno)
|
||||
{
|
||||
elf_fpregset_t fpregs;
|
||||
|
||||
if (ptrace (PTRACE_GETFPREGS, tid, 0, (long) &fpregs) < 0)
|
||||
perror_with_name ("Couldn't get floating point status");
|
||||
|
||||
fill_fpregset (&fpregs, regno);
|
||||
|
||||
if (ptrace (PTRACE_SETFPREGS, tid, 0, (long) &fpregs) < 0)
|
||||
perror_with_name ("Couldn't write floating point status");
|
||||
}
|
||||
|
||||
|
||||
/* Transferring arbitrary registers between GDB and inferior. */
|
||||
|
||||
/* Fetch register REGNO from the child process. If REGNO is -1, do
|
||||
this for all registers (including the floating point and SSE
|
||||
registers). */
|
||||
|
||||
void
|
||||
fetch_inferior_registers (int regno)
|
||||
{
|
||||
int tid;
|
||||
|
||||
/* GNU/Linux LWP ID's are process ID's. */
|
||||
if ((tid = TIDGET (inferior_ptid)) == 0)
|
||||
tid = PIDGET (inferior_ptid); /* Not a threaded program. */
|
||||
|
||||
if (regno == -1)
|
||||
{
|
||||
fetch_regs (tid);
|
||||
fetch_fpregs (tid);
|
||||
return;
|
||||
}
|
||||
|
||||
if (GETREGS_SUPPLIES (regno))
|
||||
{
|
||||
fetch_regs (tid);
|
||||
return;
|
||||
}
|
||||
|
||||
if (GETFPREGS_SUPPLIES (regno))
|
||||
{
|
||||
fetch_fpregs (tid);
|
||||
return;
|
||||
}
|
||||
|
||||
internal_error (__FILE__, __LINE__,
|
||||
"Got request for bad register number %d.", regno);
|
||||
}
|
||||
|
||||
/* Store register REGNO back into the child process. If REGNO is -1,
|
||||
do this for all registers (including the floating point and SSE
|
||||
registers). */
|
||||
void
|
||||
store_inferior_registers (int regno)
|
||||
{
|
||||
int tid;
|
||||
|
||||
/* GNU/Linux LWP ID's are process ID's. */
|
||||
if ((tid = TIDGET (inferior_ptid)) == 0)
|
||||
tid = PIDGET (inferior_ptid); /* Not a threaded program. */
|
||||
|
||||
if (regno == -1)
|
||||
{
|
||||
store_regs (tid, regno);
|
||||
store_fpregs (tid, regno);
|
||||
return;
|
||||
}
|
||||
|
||||
if (GETREGS_SUPPLIES (regno))
|
||||
{
|
||||
store_regs (tid, regno);
|
||||
return;
|
||||
}
|
||||
|
||||
if (GETFPREGS_SUPPLIES (regno))
|
||||
{
|
||||
store_fpregs (tid, regno);
|
||||
return;
|
||||
}
|
||||
|
||||
internal_error (__FILE__, __LINE__,
|
||||
"Got request to store bad register number %d.", regno);
|
||||
}
|
||||
|
||||
|
||||
static const unsigned char linux_syscall[] = { 0x0f, 0x05 };
|
||||
|
||||
#define LINUX_SYSCALL_LEN (sizeof linux_syscall)
|
||||
|
||||
/* The system call number is stored in the %rax register. */
|
||||
#define LINUX_SYSCALL_REGNUM 0 /* %rax */
|
||||
|
||||
/* We are specifically interested in the sigreturn and rt_sigreturn
|
||||
system calls. */
|
||||
|
||||
#ifndef SYS_sigreturn
|
||||
#define SYS_sigreturn __NR_sigreturn
|
||||
#endif
|
||||
#ifndef SYS_rt_sigreturn
|
||||
#define SYS_rt_sigreturn __NR_rt_sigreturn
|
||||
#endif
|
||||
|
||||
/* Offset to saved processor flags, from <asm/sigcontext.h>. */
|
||||
#define LINUX_SIGCONTEXT_EFLAGS_OFFSET (152)
|
||||
/* Offset to saved processor registers from <asm/ucontext.h> */
|
||||
#define LINUX_UCONTEXT_SIGCONTEXT_OFFSET (36)
|
||||
|
||||
/* Interpreting register set info found in core files. */
|
||||
/* Provide registers to GDB from a core file.
|
||||
|
||||
CORE_REG_SECT points to an array of bytes, which are the contents
|
||||
of a `note' from a core file which BFD thinks might contain
|
||||
register contents. CORE_REG_SIZE is its size.
|
||||
|
||||
WHICH says which register set corelow suspects this is:
|
||||
0 --- the general-purpose register set, in elf_gregset_t format
|
||||
2 --- the floating-point register set, in elf_fpregset_t format
|
||||
|
||||
REG_ADDR isn't used on GNU/Linux. */
|
||||
|
||||
static void
|
||||
fetch_core_registers (char *core_reg_sect, unsigned core_reg_size,
|
||||
int which, CORE_ADDR reg_addr)
|
||||
{
|
||||
elf_gregset_t gregset;
|
||||
elf_fpregset_t fpregset;
|
||||
switch (which)
|
||||
{
|
||||
case 0:
|
||||
if (core_reg_size != sizeof (gregset))
|
||||
warning ("Wrong size gregset in core file.");
|
||||
else
|
||||
{
|
||||
memcpy (&gregset, core_reg_sect, sizeof (gregset));
|
||||
supply_gregset (&gregset);
|
||||
}
|
||||
break;
|
||||
|
||||
case 2:
|
||||
if (core_reg_size != sizeof (fpregset))
|
||||
warning ("Wrong size fpregset in core file.");
|
||||
else
|
||||
{
|
||||
memcpy (&fpregset, core_reg_sect, sizeof (fpregset));
|
||||
supply_fpregset (&fpregset);
|
||||
}
|
||||
break;
|
||||
|
||||
default:
|
||||
/* We've covered all the kinds of registers we know about here,
|
||||
so this must be something we wouldn't know what to do with
|
||||
anyway. Just ignore it. */
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/* Register that we are able to handle GNU/Linux ELF core file formats. */
|
||||
|
||||
static struct core_fns linux_elf_core_fns = {
|
||||
bfd_target_elf_flavour, /* core_flavour */
|
||||
default_check_format, /* check_format */
|
||||
default_core_sniffer, /* core_sniffer */
|
||||
fetch_core_registers, /* core_read_registers */
|
||||
NULL /* next */
|
||||
};
|
||||
|
||||
|
||||
#if !defined (offsetof)
|
||||
#define offsetof(TYPE, MEMBER) ((unsigned long) &((TYPE *)0)->MEMBER)
|
||||
#endif
|
||||
|
||||
/* Return the address of register REGNUM. BLOCKEND is the value of
|
||||
u.u_ar0, which should point to the registers. */
|
||||
CORE_ADDR
|
||||
x86_64_register_u_addr (CORE_ADDR blockend, int regnum)
|
||||
{
|
||||
struct user u;
|
||||
CORE_ADDR fpstate;
|
||||
CORE_ADDR ubase;
|
||||
ubase = blockend;
|
||||
if (IS_FP_REGNUM (regnum))
|
||||
{
|
||||
fpstate = ubase + ((char *) &u.i387.st_space - (char *) &u);
|
||||
return (fpstate + 16 * (regnum - FP0_REGNUM));
|
||||
}
|
||||
else if (IS_SSE_REGNUM (regnum))
|
||||
{
|
||||
fpstate = ubase + ((char *) &u.i387.xmm_space - (char *) &u);
|
||||
return (fpstate + 16 * (regnum - XMM0_REGNUM));
|
||||
}
|
||||
else
|
||||
return (ubase + 8 * x86_64_regmap[regnum]);
|
||||
}
|
||||
|
||||
void
|
||||
_initialize_x86_64_linux_nat (void)
|
||||
{
|
||||
add_core_fns (&linux_elf_core_fns);
|
||||
}
|
||||
|
||||
int
|
||||
kernel_u_size (void)
|
||||
{
|
||||
return (sizeof (struct user));
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user