/* Target-dependent code for GNU/Linux x86-64.
- Copyright (C) 2001-2015 Free Software Foundation, Inc.
+ Copyright (C) 2001-2019 Free Software Foundation, Inc.
Contributed by Jiri Smid, SuSE Labs.
This file is part of GDB.
#include "amd64-linux-tdep.h"
#include "i386-linux-tdep.h"
#include "linux-tdep.h"
-#include "x86-xstate.h"
+#include "common/x86-xstate.h"
#include "amd64-tdep.h"
#include "solib-svr4.h"
#include "xml-syscall.h"
#include "glibc-tdep.h"
-
-#include "features/i386/amd64-linux.c"
-#include "features/i386/amd64-avx-linux.c"
-#include "features/i386/amd64-mpx-linux.c"
-#include "features/i386/amd64-avx512-linux.c"
-
-#include "features/i386/x32-linux.c"
-#include "features/i386/x32-avx-linux.c"
-#include "features/i386/x32-avx512-linux.c"
+#include "arch/amd64.h"
+#include "target-descriptions.h"
/* The syscall's XML filename for i386. */
#define XML_SYSCALL_FILENAME_AMD64 "syscalls/amd64-linux.xml"
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
+ -1, /* PKEYS register pkru */
+
+ /* End of hardware registers */
+ 21 * 8, 22 * 8, /* fs_base and gs_base. */
15 * 8 /* "orig_rax" */
};
\f
static LONGEST
amd64_linux_get_syscall_number (struct gdbarch *gdbarch,
- ptid_t ptid)
+ thread_info *thread)
{
- struct regcache *regcache = get_thread_regcache (ptid);
+ struct regcache *regcache = get_thread_regcache (thread);
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
/* The content of a register. */
gdb_byte buf[8];
/* Getting the system call number from the register.
When dealing with x86_64 architecture, this information
is stored at %rax register. */
- regcache_cooked_read (regcache, AMD64_LINUX_ORIG_RAX_REGNUM, buf);
+ regcache->cooked_read (AMD64_LINUX_ORIG_RAX_REGNUM, buf);
ret = extract_signed_integer (buf, 8, byte_order);
amd64_linux_register_reggroup_p (struct gdbarch *gdbarch, int regnum,
struct reggroup *group)
{
- if (regnum == AMD64_LINUX_ORIG_RAX_REGNUM)
+ if (regnum == AMD64_LINUX_ORIG_RAX_REGNUM
+ || regnum == AMD64_FSBASE_REGNUM
+ || regnum == AMD64_GSBASE_REGNUM)
return (group == system_reggroup
|| group == save_reggroup
|| group == restore_reggroup);
static enum gdb_syscall
amd64_canonicalize_syscall (enum amd64_syscall syscall_number)
{
+ DIAGNOSTIC_PUSH
+ DIAGNOSTIC_IGNORE_SWITCH_DIFFERENT_ENUM_TYPES
+
switch (syscall_number) {
case amd64_sys_read:
case amd64_x32_sys_read:
case amd64_sys_arch_prctl:
case amd64_x32_sys_arch_prctl:
- return -1; /* Note */
+ return gdb_sys_no_syscall; /* Note */
case amd64_sys_adjtimex:
case amd64_x32_sys_adjtimex:
return gdb_sys_move_pages;
default:
- return -1;
+ return gdb_sys_no_syscall;
}
+
+ DIAGNOSTIC_POP
}
/* Parse the arguments of current system call instruction and record
{
int ret;
ULONGEST syscall_native;
- enum gdb_syscall syscall_gdb = -1;
+ enum gdb_syscall syscall_gdb = gdb_sys_no_syscall;
regcache_raw_read_unsigned (regcache, AMD64_RAX_REGNUM, &syscall_native);
break;
}
- syscall_gdb = amd64_canonicalize_syscall (syscall_native);
+ syscall_gdb
+ = amd64_canonicalize_syscall ((enum amd64_syscall) syscall_native);
- if (syscall_gdb < 0)
+ if (syscall_gdb == gdb_sys_no_syscall)
{
printf_unfiltered (_("Process record and replay target doesn't "
"support syscall number %s\n"),
return 0;
}
+const target_desc *
+amd64_linux_read_description (uint64_t xcr0_features_bit, bool is_x32)
+{
+ static target_desc *amd64_linux_tdescs \
+ [2/*AVX*/][2/*MPX*/][2/*AVX512*/][2/*PKRU*/] = {};
+ static target_desc *x32_linux_tdescs[2/*AVX*/][2/*AVX512*/] = {};
+
+ target_desc **tdesc;
+
+ if (is_x32)
+ {
+ tdesc = &x32_linux_tdescs[(xcr0_features_bit & X86_XSTATE_AVX) ? 1 : 0 ]
+ [(xcr0_features_bit & X86_XSTATE_AVX512) ? 1 : 0];
+ }
+ else
+ {
+ tdesc = &amd64_linux_tdescs[(xcr0_features_bit & X86_XSTATE_AVX) ? 1 : 0]
+ [(xcr0_features_bit & X86_XSTATE_MPX) ? 1 : 0]
+ [(xcr0_features_bit & X86_XSTATE_AVX512) ? 1 : 0]
+ [(xcr0_features_bit & X86_XSTATE_PKRU) ? 1 : 0];
+ }
+
+ if (*tdesc == NULL)
+ *tdesc = amd64_create_target_description (xcr0_features_bit, is_x32,
+ true, true);
+
+ return *tdesc;
+}
+
/* Get Linux/x86 target description from core dump. */
static const struct target_desc *
/* Linux/x86-64. */
uint64_t xcr0 = i386_linux_core_read_xcr0 (abfd);
- switch (xcr0 & X86_XSTATE_ALL_MASK)
- {
- case X86_XSTATE_MPX_AVX512_MASK:
- case X86_XSTATE_AVX512_MASK:
- if (gdbarch_ptr_bit (gdbarch) == 32)
- return tdesc_x32_avx512_linux;
- else
- return tdesc_amd64_avx512_linux;
- case X86_XSTATE_MPX_MASK:
- if (gdbarch_ptr_bit (gdbarch) == 32)
- return tdesc_x32_avx_linux; /* No x32 MPX falling back to AVX. */
- else
- return tdesc_amd64_mpx_linux;
- case X86_XSTATE_AVX_MASK:
- if (gdbarch_ptr_bit (gdbarch) == 32)
- return tdesc_x32_avx_linux;
- else
- return tdesc_amd64_avx_linux;
- default:
- if (gdbarch_ptr_bit (gdbarch) == 32)
- return tdesc_x32_linux;
- else
- return tdesc_amd64_linux;
- }
+ return amd64_linux_read_description (xcr0 & X86_XSTATE_ALL_MASK,
+ gdbarch_ptr_bit (gdbarch) == 32);
}
/* Similar to amd64_supply_fpregset, but use XSAVE extended state. */
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
- cb (".reg", 27 * 8, &i386_gregset, NULL, cb_data);
- cb (".reg2", 512, &amd64_fpregset, NULL, cb_data);
- cb (".reg-xstate", X86_XSTATE_SIZE (tdep->xcr0),
+ cb (".reg", 27 * 8, 27 * 8, &i386_gregset, NULL, cb_data);
+ cb (".reg2", 512, 512, &amd64_fpregset, NULL, cb_data);
+ cb (".reg-xstate", X86_XSTATE_SIZE (tdep->xcr0), X86_XSTATE_SIZE (tdep->xcr0),
&amd64_linux_xstateregset, "XSAVE extended state", cb_data);
}
static void
amd64_dtrace_parse_probe_argument (struct gdbarch *gdbarch,
- struct parser_state *pstate,
+ struct expr_builder *builder,
int narg)
{
- enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
- struct frame_info *this_frame = get_selected_frame (NULL);
struct stoken str;
/* DTrace probe arguments can be found on the ABI-defined places for
int regno = arg_reg_map[narg];
const char *regname = user_reg_map_regnum_to_name (gdbarch, regno);
- write_exp_elt_opcode (pstate, OP_REGISTER);
+ write_exp_elt_opcode (builder, OP_REGISTER);
str.ptr = regname;
str.length = strlen (regname);
- write_exp_string (pstate, str);
- write_exp_elt_opcode (pstate, OP_REGISTER);
+ write_exp_string (builder, str);
+ write_exp_elt_opcode (builder, OP_REGISTER);
}
else
{
/* Additional arguments are passed on the stack. */
- CORE_ADDR sp;
const char *regname = user_reg_map_regnum_to_name (gdbarch, AMD64_RSP_REGNUM);
/* Displacement. */
- write_exp_elt_opcode (pstate, OP_LONG);
- write_exp_elt_type (pstate, builtin_type (gdbarch)->builtin_long);
- write_exp_elt_longcst (pstate, narg - 6);
- write_exp_elt_opcode (pstate, OP_LONG);
+ write_exp_elt_opcode (builder, OP_LONG);
+ write_exp_elt_type (builder, builtin_type (gdbarch)->builtin_long);
+ write_exp_elt_longcst (builder, narg - 6);
+ write_exp_elt_opcode (builder, OP_LONG);
/* Register: SP. */
- write_exp_elt_opcode (pstate, OP_REGISTER);
+ write_exp_elt_opcode (builder, OP_REGISTER);
str.ptr = regname;
str.length = strlen (regname);
- write_exp_string (pstate, str);
- write_exp_elt_opcode (pstate, OP_REGISTER);
+ write_exp_string (builder, str);
+ write_exp_elt_opcode (builder, OP_REGISTER);
- write_exp_elt_opcode (pstate, BINOP_ADD);
+ write_exp_elt_opcode (builder, BINOP_ADD);
/* Cast to long. */
- write_exp_elt_opcode (pstate, UNOP_CAST);
- write_exp_elt_type (pstate,
+ write_exp_elt_opcode (builder, UNOP_CAST);
+ write_exp_elt_type (builder,
lookup_pointer_type (builtin_type (gdbarch)->builtin_long));
- write_exp_elt_opcode (pstate, UNOP_CAST);
+ write_exp_elt_opcode (builder, UNOP_CAST);
- write_exp_elt_opcode (pstate, UNOP_IND);
+ write_exp_elt_opcode (builder, UNOP_IND);
}
}
set_gdbarch_displaced_step_copy_insn (gdbarch,
amd64_displaced_step_copy_insn);
set_gdbarch_displaced_step_fixup (gdbarch, amd64_displaced_step_fixup);
- set_gdbarch_displaced_step_free_closure (gdbarch,
- simple_displaced_step_free_closure);
set_gdbarch_displaced_step_location (gdbarch,
linux_displaced_step_location);
set_gdbarch_process_record (gdbarch, i386_process_record);
set_gdbarch_process_record_signal (gdbarch, amd64_linux_record_signal);
+
+ set_gdbarch_get_siginfo_type (gdbarch, x86_linux_get_siginfo_type);
+ set_gdbarch_handle_segmentation_fault (gdbarch,
+ i386_linux_handle_segmentation_fault);
}
static void
amd64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
- const struct target_desc *tdesc = info.target_desc;
- struct tdesc_arch_data *tdesc_data = (void *) info.tdep_info;
+ struct tdesc_arch_data *tdesc_data = info.tdesc_data;
const struct tdesc_feature *feature;
int valid_p;
tdep->gregset_num_regs = ARRAY_SIZE (amd64_linux_gregset_reg_offset);
tdep->sizeof_gregset = 27 * 8;
- amd64_init_abi (info, gdbarch);
+ amd64_init_abi (info, gdbarch,
+ amd64_linux_read_description (X86_XSTATE_SSE_MASK, false));
+
+ const target_desc *tdesc = tdep->tdesc;
/* Reserve a number for orig_rax. */
set_gdbarch_num_regs (gdbarch, AMD64_LINUX_NUM_REGS);
- if (! tdesc_has_registers (tdesc))
- tdesc = tdesc_amd64_linux;
- tdep->tdesc = tdesc;
-
feature = tdesc_find_feature (tdesc, "org.gnu.gdb.i386.linux");
if (feature == NULL)
return;
amd64_linux_record_tdep.size_ustat = 32;
/* ADM64 doesn't need this size because it doesn't have sys_sigaction
but sys_rt_sigaction. */
- amd64_linux_record_tdep.size_old_sigaction = 152;
+ amd64_linux_record_tdep.size_old_sigaction = 32;
/* ADM64 doesn't need this size because it doesn't have sys_sigpending
but sys_rt_sigpending. */
- amd64_linux_record_tdep.size_old_sigset_t = 128;
+ amd64_linux_record_tdep.size_old_sigset_t = 8;
amd64_linux_record_tdep.size_rlimit = 16;
amd64_linux_record_tdep.size_rusage = 144;
amd64_linux_record_tdep.size_timeval = 16;
but sys_getresuid. */
amd64_linux_record_tdep.size_old_uid_t = 2;
amd64_linux_record_tdep.size_fd_set = 128;
- amd64_linux_record_tdep.size_dirent = 280;
- amd64_linux_record_tdep.size_dirent64 = 280;
+ /* ADM64 doesn't need this size because it doesn't have sys_readdir. */
+ amd64_linux_record_tdep.size_old_dirent = 280;
amd64_linux_record_tdep.size_statfs = 120;
amd64_linux_record_tdep.size_statfs64 = 120;
amd64_linux_record_tdep.size_sockaddr = 16;
amd64_linux_record_tdep.size_NFS_FHSIZE = 32;
amd64_linux_record_tdep.size_knfsd_fh = 132;
amd64_linux_record_tdep.size_TASK_COMM_LEN = 16;
- amd64_linux_record_tdep.size_sigaction = 152;
- amd64_linux_record_tdep.size_sigset_t = 128;
+ amd64_linux_record_tdep.size_sigaction = 32;
+ amd64_linux_record_tdep.size_sigset_t = 8;
amd64_linux_record_tdep.size_siginfo_t = 128;
amd64_linux_record_tdep.size_cap_user_data_t = 8;
amd64_linux_record_tdep.size_stack_t = 24;
amd64_linux_record_tdep.size_epoll_event = 12;
amd64_linux_record_tdep.size_itimerspec = 32;
amd64_linux_record_tdep.size_mq_attr = 64;
- amd64_linux_record_tdep.size_siginfo = 128;
- amd64_linux_record_tdep.size_termios = 60;
+ amd64_linux_record_tdep.size_termios = 36;
amd64_linux_record_tdep.size_termios2 = 44;
amd64_linux_record_tdep.size_pid_t = 4;
amd64_linux_record_tdep.size_winsize = 8;
amd64_linux_record_tdep.size_hayes_esp_config = 12;
amd64_linux_record_tdep.size_size_t = 8;
amd64_linux_record_tdep.size_iovec = 16;
+ amd64_linux_record_tdep.size_time_t = 8;
/* These values are the second argument of system call "sys_fcntl"
and "sys_fcntl64". They are obtained from Linux Kernel source. */
}
static void
-amd64_x32_linux_init_abi(struct gdbarch_info info, struct gdbarch *gdbarch)
+amd64_x32_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
- const struct target_desc *tdesc = info.target_desc;
- struct tdesc_arch_data *tdesc_data = (void *) info.tdep_info;
+ struct tdesc_arch_data *tdesc_data = info.tdesc_data;
const struct tdesc_feature *feature;
int valid_p;
tdep->gregset_num_regs = ARRAY_SIZE (amd64_linux_gregset_reg_offset);
tdep->sizeof_gregset = 27 * 8;
- amd64_x32_init_abi (info, gdbarch);
+ amd64_x32_init_abi (info, gdbarch,
+ amd64_linux_read_description (X86_XSTATE_SSE_MASK,
+ true));
/* Reserve a number for orig_rax. */
set_gdbarch_num_regs (gdbarch, AMD64_LINUX_NUM_REGS);
- if (! tdesc_has_registers (tdesc))
- tdesc = tdesc_x32_linux;
- tdep->tdesc = tdesc;
+ const target_desc *tdesc = tdep->tdesc;
feature = tdesc_find_feature (tdesc, "org.gnu.gdb.i386.linux");
if (feature == NULL)
amd64_x32_linux_record_tdep.size_ustat = 32;
/* ADM64 doesn't need this size because it doesn't have sys_sigaction
but sys_rt_sigaction. */
- amd64_x32_linux_record_tdep.size_old_sigaction = 152;
+ amd64_x32_linux_record_tdep.size_old_sigaction = 16;
/* ADM64 doesn't need this size because it doesn't have sys_sigpending
but sys_rt_sigpending. */
- amd64_x32_linux_record_tdep.size_old_sigset_t = 128;
+ amd64_x32_linux_record_tdep.size_old_sigset_t = 4;
amd64_x32_linux_record_tdep.size_rlimit = 16;
amd64_x32_linux_record_tdep.size_rusage = 144;
amd64_x32_linux_record_tdep.size_timeval = 16;
but sys_getresuid. */
amd64_x32_linux_record_tdep.size_old_uid_t = 2;
amd64_x32_linux_record_tdep.size_fd_set = 128;
- amd64_x32_linux_record_tdep.size_dirent = 280;
- amd64_x32_linux_record_tdep.size_dirent64 = 280;
+ /* ADM64 doesn't need this size because it doesn't have sys_readdir. */
+ amd64_x32_linux_record_tdep.size_old_dirent = 268;
amd64_x32_linux_record_tdep.size_statfs = 120;
amd64_x32_linux_record_tdep.size_statfs64 = 120;
amd64_x32_linux_record_tdep.size_sockaddr = 16;
= gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT;
amd64_x32_linux_record_tdep.size_ulong
= gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT;
- amd64_x32_linux_record_tdep.size_msghdr = 56;
+ amd64_x32_linux_record_tdep.size_msghdr = 28;
amd64_x32_linux_record_tdep.size_itimerval = 32;
amd64_x32_linux_record_tdep.size_stat = 144;
amd64_x32_linux_record_tdep.size_old_utsname = 325;
amd64_x32_linux_record_tdep.size_NFS_FHSIZE = 32;
amd64_x32_linux_record_tdep.size_knfsd_fh = 132;
amd64_x32_linux_record_tdep.size_TASK_COMM_LEN = 16;
- amd64_x32_linux_record_tdep.size_sigaction = 152;
- amd64_x32_linux_record_tdep.size_sigset_t = 128;
+ amd64_x32_linux_record_tdep.size_sigaction = 20;
+ amd64_x32_linux_record_tdep.size_sigset_t = 8;
amd64_x32_linux_record_tdep.size_siginfo_t = 128;
amd64_x32_linux_record_tdep.size_cap_user_data_t = 8;
- amd64_x32_linux_record_tdep.size_stack_t = 24;
+ amd64_x32_linux_record_tdep.size_stack_t = 12;
amd64_x32_linux_record_tdep.size_off_t = 8;
amd64_x32_linux_record_tdep.size_stat64 = 144;
amd64_x32_linux_record_tdep.size_gid_t = 4;
amd64_x32_linux_record_tdep.size_epoll_event = 12;
amd64_x32_linux_record_tdep.size_itimerspec = 32;
amd64_x32_linux_record_tdep.size_mq_attr = 64;
- amd64_x32_linux_record_tdep.size_siginfo = 128;
- amd64_x32_linux_record_tdep.size_termios = 60;
+ amd64_x32_linux_record_tdep.size_termios = 36;
amd64_x32_linux_record_tdep.size_termios2 = 44;
amd64_x32_linux_record_tdep.size_pid_t = 4;
amd64_x32_linux_record_tdep.size_winsize = 8;
amd64_x32_linux_record_tdep.size_serial_struct = 72;
amd64_x32_linux_record_tdep.size_serial_icounter_struct = 80;
amd64_x32_linux_record_tdep.size_hayes_esp_config = 12;
- amd64_x32_linux_record_tdep.size_size_t = 8;
- amd64_x32_linux_record_tdep.size_iovec = 16;
+ amd64_x32_linux_record_tdep.size_size_t = 4;
+ amd64_x32_linux_record_tdep.size_iovec = 8;
+ amd64_x32_linux_record_tdep.size_time_t = 8;
/* These values are the second argument of system call "sys_fcntl"
and "sys_fcntl64". They are obtained from Linux Kernel source. */
set_solib_svr4_fetch_link_map_offsets
(gdbarch, svr4_ilp32_fetch_link_map_offsets);
}
-\f
-
-/* Provide a prototype to silence -Wmissing-prototypes. */
-extern void _initialize_amd64_linux_tdep (void);
void
_initialize_amd64_linux_tdep (void)
gdbarch_register_osabi (bfd_arch_i386, bfd_mach_x64_32,
GDB_OSABI_LINUX, amd64_x32_linux_init_abi);
- /* Initialize the Linux target description. */
- initialize_tdesc_amd64_linux ();
- initialize_tdesc_amd64_avx_linux ();
- initialize_tdesc_amd64_mpx_linux ();
- initialize_tdesc_amd64_avx512_linux ();
+#if GDB_SELF_TEST
+ struct
+ {
+ const char *xml;
+ uint64_t mask;
+ } xml_masks[] = {
+ { "i386/amd64-linux.xml", X86_XSTATE_SSE_MASK },
+ { "i386/amd64-avx-linux.xml", X86_XSTATE_AVX_MASK },
+ { "i386/amd64-mpx-linux.xml", X86_XSTATE_MPX_MASK },
+ { "i386/amd64-avx-mpx-linux.xml", X86_XSTATE_AVX_MPX_MASK },
+ { "i386/amd64-avx-avx512-linux.xml", X86_XSTATE_AVX_AVX512_MASK },
+ { "i386/amd64-avx-mpx-avx512-pku-linux.xml",
+ X86_XSTATE_AVX_MPX_AVX512_PKU_MASK },
+ { "i386/x32-linux.xml", X86_XSTATE_SSE_MASK },
+ { "i386/x32-avx-linux.xml", X86_XSTATE_AVX_MASK },
+ { "i386/x32-avx-avx512-linux.xml", X86_XSTATE_AVX_AVX512_MASK },
+ };
- initialize_tdesc_x32_linux ();
- initialize_tdesc_x32_avx_linux ();
- initialize_tdesc_x32_avx512_linux ();
+ for (auto &a : xml_masks)
+ {
+ auto tdesc = amd64_linux_read_description (a.mask,
+ startswith (a.xml,
+ "i386/x32"));
+
+ selftests::record_xml_tdesc (a.xml, tdesc);
+ }
+#endif /* GDB_SELF_TEST */
}
projects / thirdparty / binutils-gdb.git / blobdiff