/* Target-dependent code for GNU/Linux x86-64.
- Copyright (C) 2001, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
- Free Software Foundation, Inc.
+ Copyright (C) 2001-2013 Free Software Foundation, Inc.
Contributed by Jiri Smid, SuSE Labs.
This file is part of GDB.
#include "linux-tdep.h"
#include "i386-xstate.h"
-#include "gdb_string.h"
+#include <string.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/x32-linux.c"
+#include "features/i386/x32-avx-linux.c"
/* The syscall's XML filename for i386. */
#define XML_SYSCALL_FILENAME_AMD64 "syscalls/amd64-linux.xml"
-#include "record.h"
+#include "record-full.h"
#include "linux-record.h"
/* Supported register note sections. */
14 * 8, /* %rdi */
4 * 8, /* %rbp */
19 * 8, /* %rsp */
- 9 * 8, /* %r8 ... */
+ 9 * 8, /* %r8 ... */
8 * 8,
7 * 8,
6 * 8,
-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,
+ -1, -1, -1, -1, /* MPX registers BND0 ... BND3. */
+ -1, -1, /* MPX registers BNDCFGU and BNDSTATUS. */
15 * 8 /* "orig_rax" */
};
\f
#define LINUX_SIGTRAMP_INSN1 0x0f /* syscall */
#define LINUX_SIGTRAMP_OFFSET1 7
-static const gdb_byte linux_sigtramp_code[] =
+static const gdb_byte amd64_linux_sigtramp_code[] =
{
/* mov $__NR_rt_sigreturn, %rax */
LINUX_SIGTRAMP_INSN0, 0xc7, 0xc0, 0x0f, 0x00, 0x00, 0x00,
LINUX_SIGTRAMP_INSN1, 0x05
};
-#define LINUX_SIGTRAMP_LEN (sizeof linux_sigtramp_code)
+static const gdb_byte amd64_x32_linux_sigtramp_code[] =
+{
+ /* mov $__NR_rt_sigreturn, %rax. */
+ LINUX_SIGTRAMP_INSN0, 0xc7, 0xc0, 0x01, 0x02, 0x00, 0x40,
+ /* syscall */
+ LINUX_SIGTRAMP_INSN1, 0x05
+};
+
+#define LINUX_SIGTRAMP_LEN (sizeof amd64_linux_sigtramp_code)
/* If PC is in a sigtramp routine, return the address of the start of
the routine. Otherwise, return 0. */
static CORE_ADDR
amd64_linux_sigtramp_start (struct frame_info *this_frame)
{
+ struct gdbarch *gdbarch;
+ const gdb_byte *sigtramp_code;
CORE_ADDR pc = get_frame_pc (this_frame);
gdb_byte buf[LINUX_SIGTRAMP_LEN];
return 0;
}
- if (memcmp (buf, linux_sigtramp_code, LINUX_SIGTRAMP_LEN) != 0)
+ gdbarch = get_frame_arch (this_frame);
+ if (gdbarch_ptr_bit (gdbarch) == 32)
+ sigtramp_code = amd64_x32_linux_sigtramp_code;
+ else
+ sigtramp_code = amd64_linux_sigtramp_code;
+ if (memcmp (buf, sigtramp_code, LINUX_SIGTRAMP_LEN) != 0)
return 0;
return pc;
amd64_linux_sigtramp_p (struct frame_info *this_frame)
{
CORE_ADDR pc = get_frame_pc (this_frame);
- char *name;
+ const char *name;
find_pc_partial_function (pc, &name, NULL, NULL);
static int
amd64_all_but_ip_registers_record (struct regcache *regcache)
{
- if (record_arch_list_add_reg (regcache, AMD64_RAX_REGNUM))
+ if (record_full_arch_list_add_reg (regcache, AMD64_RAX_REGNUM))
return -1;
- if (record_arch_list_add_reg (regcache, AMD64_RCX_REGNUM))
+ if (record_full_arch_list_add_reg (regcache, AMD64_RCX_REGNUM))
return -1;
- if (record_arch_list_add_reg (regcache, AMD64_RDX_REGNUM))
+ if (record_full_arch_list_add_reg (regcache, AMD64_RDX_REGNUM))
return -1;
- if (record_arch_list_add_reg (regcache, AMD64_RBX_REGNUM))
+ if (record_full_arch_list_add_reg (regcache, AMD64_RBX_REGNUM))
return -1;
- if (record_arch_list_add_reg (regcache, AMD64_RSP_REGNUM))
+ if (record_full_arch_list_add_reg (regcache, AMD64_RSP_REGNUM))
return -1;
- if (record_arch_list_add_reg (regcache, AMD64_RBP_REGNUM))
+ if (record_full_arch_list_add_reg (regcache, AMD64_RBP_REGNUM))
return -1;
- if (record_arch_list_add_reg (regcache, AMD64_RSI_REGNUM))
+ if (record_full_arch_list_add_reg (regcache, AMD64_RSI_REGNUM))
return -1;
- if (record_arch_list_add_reg (regcache, AMD64_RDI_REGNUM))
+ if (record_full_arch_list_add_reg (regcache, AMD64_RDI_REGNUM))
return -1;
- if (record_arch_list_add_reg (regcache, AMD64_R8_REGNUM))
+ if (record_full_arch_list_add_reg (regcache, AMD64_R8_REGNUM))
return -1;
- if (record_arch_list_add_reg (regcache, AMD64_R9_REGNUM))
+ if (record_full_arch_list_add_reg (regcache, AMD64_R9_REGNUM))
return -1;
- if (record_arch_list_add_reg (regcache, AMD64_R10_REGNUM))
+ if (record_full_arch_list_add_reg (regcache, AMD64_R10_REGNUM))
return -1;
- if (record_arch_list_add_reg (regcache, AMD64_R11_REGNUM))
+ if (record_full_arch_list_add_reg (regcache, AMD64_R11_REGNUM))
return -1;
- if (record_arch_list_add_reg (regcache, AMD64_R12_REGNUM))
+ if (record_full_arch_list_add_reg (regcache, AMD64_R12_REGNUM))
return -1;
- if (record_arch_list_add_reg (regcache, AMD64_R13_REGNUM))
+ if (record_full_arch_list_add_reg (regcache, AMD64_R13_REGNUM))
return -1;
- if (record_arch_list_add_reg (regcache, AMD64_R14_REGNUM))
+ if (record_full_arch_list_add_reg (regcache, AMD64_R14_REGNUM))
return -1;
- if (record_arch_list_add_reg (regcache, AMD64_R15_REGNUM))
+ if (record_full_arch_list_add_reg (regcache, AMD64_R15_REGNUM))
return -1;
- if (record_arch_list_add_reg (regcache, AMD64_EFLAGS_REGNUM))
+ if (record_full_arch_list_add_reg (regcache, AMD64_EFLAGS_REGNUM))
return -1;
return 0;
process record. */
static enum gdb_syscall
-amd64_canonicalize_syscall (enum amd64_syscall syscall)
+amd64_canonicalize_syscall (enum amd64_syscall syscall_number)
{
- switch (syscall) {
+ switch (syscall_number) {
case amd64_sys_read:
return gdb_sys_read;
/* Parse the arguments of current system call instruction and record
the values of the registers and memory that will be changed into
- "record_arch_list". This instruction is "syscall".
+ "record_full_arch_list". This instruction is "syscall".
Return -1 if something wrong. */
break;
case amd64_sys_arch_prctl:
- if (syscall_native == amd64_sys_arch_prctl)
- {
- ULONGEST arg3;
-
- regcache_raw_read_unsigned (regcache, amd64_linux_record_tdep.arg3,
- &arg3);
- if (arg3 == RECORD_ARCH_GET_FS || arg3 == RECORD_ARCH_GET_GS)
- {
- CORE_ADDR addr;
-
- regcache_raw_read_unsigned (regcache,
- amd64_linux_record_tdep.arg2,
- &addr);
- if (record_arch_list_add_mem (addr,
- amd64_linux_record_tdep.size_ulong))
- return -1;
- }
- goto record_regs;
- }
+ {
+ ULONGEST arg3;
+
+ regcache_raw_read_unsigned (regcache, amd64_linux_record_tdep.arg3,
+ &arg3);
+ if (arg3 == RECORD_ARCH_GET_FS || arg3 == RECORD_ARCH_GET_GS)
+ {
+ CORE_ADDR addr;
+
+ regcache_raw_read_unsigned (regcache,
+ amd64_linux_record_tdep.arg2,
+ &addr);
+ if (record_full_arch_list_add_mem
+ (addr, amd64_linux_record_tdep.size_ulong))
+ return -1;
+ }
+ goto record_regs;
+ }
break;
}
record_regs:
/* Record the return value of the system call. */
- if (record_arch_list_add_reg (regcache, AMD64_RCX_REGNUM))
+ if (record_full_arch_list_add_reg (regcache, AMD64_RCX_REGNUM))
return -1;
- if (record_arch_list_add_reg (regcache, AMD64_R11_REGNUM))
+ if (record_full_arch_list_add_reg (regcache, AMD64_R11_REGNUM))
return -1;
return 0;
#define AMD64_LINUX_xstate 512
#define AMD64_LINUX_frame_size 560
-int
+static int
amd64_linux_record_signal (struct gdbarch *gdbarch,
struct regcache *regcache,
- enum target_signal signal)
+ enum gdb_signal signal)
{
ULONGEST rsp;
if (amd64_all_but_ip_registers_record (regcache))
return -1;
- if (record_arch_list_add_reg (regcache, AMD64_RIP_REGNUM))
+ if (record_full_arch_list_add_reg (regcache, AMD64_RIP_REGNUM))
return -1;
/* Record the change in the stack. */
/* This is for frame_size.
sp -= sizeof (struct rt_sigframe); */
rsp -= AMD64_LINUX_frame_size;
- if (record_arch_list_add_mem (rsp, AMD64_LINUX_redzone
+ if (record_full_arch_list_add_mem (rsp, AMD64_LINUX_redzone
+ AMD64_LINUX_xstate
+ AMD64_LINUX_frame_size))
return -1;
- if (record_arch_list_add_end ())
+ if (record_full_arch_list_add_end ())
return -1;
return 0;
bfd *abfd)
{
/* Linux/x86-64. */
- uint64_t xcr0 = i386_linux_core_read_xcr0 (gdbarch, target, abfd);
- switch ((xcr0 & I386_XSTATE_AVX_MASK))
+ uint64_t xcr0 = i386_linux_core_read_xcr0 (abfd);
+
+ switch (xcr0 & I386_XSTATE_ALL_MASK)
{
+ case I386_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 I386_XSTATE_AVX_MASK:
- return tdesc_amd64_avx_linux;
+ if (gdbarch_ptr_bit (gdbarch) == 32)
+ return tdesc_x32_avx_linux;
+ else
+ return tdesc_amd64_avx_linux;
default:
- return tdesc_amd64_linux;
+ if (gdbarch_ptr_bit (gdbarch) == 32)
+ return tdesc_x32_linux;
+ else
+ return tdesc_amd64_linux;
}
}
static void
-amd64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
+amd64_linux_init_abi_common(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;
- const struct tdesc_feature *feature;
- int valid_p;
-
- gdb_assert (tdesc_data);
- tdep->gregset_reg_offset = amd64_linux_gregset_reg_offset;
- tdep->gregset_num_regs = ARRAY_SIZE (amd64_linux_gregset_reg_offset);
- tdep->sizeof_gregset = 27 * 8;
-
- amd64_init_abi (info, gdbarch);
-
- /* 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;
-
- valid_p = tdesc_numbered_register (feature, tdesc_data,
- AMD64_LINUX_ORIG_RAX_REGNUM,
- "orig_rax");
- if (!valid_p)
- return;
+ linux_init_abi (info, gdbarch);
tdep->sigtramp_p = amd64_linux_sigtramp_p;
tdep->sigcontext_addr = amd64_linux_sigcontext_addr;
tdep->xsave_xcr0_offset = I386_LINUX_XSAVE_XCR0_OFFSET;
- /* GNU/Linux uses SVR4-style shared libraries. */
- set_solib_svr4_fetch_link_map_offsets
- (gdbarch, svr4_lp64_fetch_link_map_offsets);
-
/* Add the %orig_rax register used for syscall restarting. */
set_gdbarch_write_pc (gdbarch, amd64_linux_write_pc);
/* GNU/Linux uses SVR4-style shared libraries. */
set_gdbarch_skip_trampoline_code (gdbarch, find_solib_trampoline_target);
+ /* GNU/Linux uses the dynamic linker included in the GNU C Library. */
+ set_gdbarch_skip_solib_resolver (gdbarch, glibc_skip_solib_resolver);
+
/* Install supported register note sections. */
set_gdbarch_core_regset_sections (gdbarch, amd64_linux_regset_sections);
tdep->i386_syscall_record = amd64_linux_syscall_record;
}
+
+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;
+ const struct tdesc_feature *feature;
+ int valid_p;
+
+ gdb_assert (tdesc_data);
+
+ tdep->gregset_reg_offset = amd64_linux_gregset_reg_offset;
+ tdep->gregset_num_regs = ARRAY_SIZE (amd64_linux_gregset_reg_offset);
+ tdep->sizeof_gregset = 27 * 8;
+
+ amd64_init_abi (info, gdbarch);
+
+ /* 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;
+
+ valid_p = tdesc_numbered_register (feature, tdesc_data,
+ AMD64_LINUX_ORIG_RAX_REGNUM,
+ "orig_rax");
+ if (!valid_p)
+ return;
+
+ amd64_linux_init_abi_common (info, gdbarch);
+
+ /* GNU/Linux uses SVR4-style shared libraries. */
+ set_solib_svr4_fetch_link_map_offsets
+ (gdbarch, svr4_lp64_fetch_link_map_offsets);
+}
+
+static void
+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;
+ const struct tdesc_feature *feature;
+ int valid_p;
+
+ gdb_assert (tdesc_data);
+
+ tdep->gregset_reg_offset = amd64_linux_gregset_reg_offset;
+ tdep->gregset_num_regs = ARRAY_SIZE (amd64_linux_gregset_reg_offset);
+ tdep->sizeof_gregset = 27 * 8;
+
+ amd64_x32_init_abi (info, gdbarch);
+
+ /* 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;
+
+ feature = tdesc_find_feature (tdesc, "org.gnu.gdb.i386.linux");
+ if (feature == NULL)
+ return;
+
+ valid_p = tdesc_numbered_register (feature, tdesc_data,
+ AMD64_LINUX_ORIG_RAX_REGNUM,
+ "orig_rax");
+ if (!valid_p)
+ return;
+
+ amd64_linux_init_abi_common (info, gdbarch);
+
+ /* GNU/Linux uses SVR4-style shared libraries. */
+ set_solib_svr4_fetch_link_map_offsets
+ (gdbarch, svr4_ilp32_fetch_link_map_offsets);
+}
\f
/* Provide a prototype to silence -Wmissing-prototypes. */
{
gdbarch_register_osabi (bfd_arch_i386, bfd_mach_x86_64,
GDB_OSABI_LINUX, amd64_linux_init_abi);
+ gdbarch_register_osabi (bfd_arch_i386, bfd_mach_x64_32,
+ GDB_OSABI_LINUX, amd64_x32_linux_init_abi);
- /* Initialize the Linux target description */
+ /* Initialize the Linux target description. */
initialize_tdesc_amd64_linux ();
initialize_tdesc_amd64_avx_linux ();
+ initialize_tdesc_amd64_mpx_linux ();
+ initialize_tdesc_x32_linux ();
+ initialize_tdesc_x32_avx_linux ();
}
projects / deliverable / binutils-gdb.git / blobdiff