-/* Copyright (C) 2009-2016 Free Software Foundation, Inc.
+/* Copyright (C) 2009-2021 Free Software Foundation, Inc.
This file is part of GDB.
#include "defs.h"
#include "osabi.h"
#include "amd64-tdep.h"
+#include "gdbsupport/x86-xstate.h"
#include "gdbtypes.h"
#include "gdbcore.h"
#include "regcache.h"
AMD64_R9_REGNUM /* %r9 */
};
+/* This vector maps GDB's idea of a register's number into an offset into
+ the Windows API CONTEXT structure. */
+static int amd64_windows_gregset_reg_offset[] =
+{
+ 120, /* Rax */
+ 144, /* Rbx */
+ 128, /* Rcx */
+ 136, /* Rdx */
+ 168, /* Rsi */
+ 176, /* Rdi */
+ 160, /* Rbp */
+ 152, /* Rsp */
+ 184, /* R8 */
+ 192, /* R9 */
+ 200, /* R10 */
+ 208, /* R11 */
+ 216, /* R12 */
+ 224, /* R13 */
+ 232, /* R14 */
+ 240, /* R15 */
+ 248, /* Rip */
+ 68, /* EFlags */
+ 56, /* SegCs */
+ 66, /* SegSs */
+ 58, /* SegDs */
+ 60, /* SegEs */
+ 62, /* SegFs */
+ 64, /* SegGs */
+ 288, /* FloatSave.FloatRegisters[0] */
+ 304, /* FloatSave.FloatRegisters[1] */
+ 320, /* FloatSave.FloatRegisters[2] */
+ 336, /* FloatSave.FloatRegisters[3] */
+ 352, /* FloatSave.FloatRegisters[4] */
+ 368, /* FloatSave.FloatRegisters[5] */
+ 384, /* FloatSave.FloatRegisters[6] */
+ 400, /* FloatSave.FloatRegisters[7] */
+ 256, /* FloatSave.ControlWord */
+ 258, /* FloatSave.StatusWord */
+ 260, /* FloatSave.TagWord */
+ 268, /* FloatSave.ErrorSelector */
+ 264, /* FloatSave.ErrorOffset */
+ 276, /* FloatSave.DataSelector */
+ 272, /* FloatSave.DataOffset */
+ 268, /* FloatSave.ErrorSelector */
+ 416, /* Xmm0 */
+ 432, /* Xmm1 */
+ 448, /* Xmm2 */
+ 464, /* Xmm3 */
+ 480, /* Xmm4 */
+ 496, /* Xmm5 */
+ 512, /* Xmm6 */
+ 528, /* Xmm7 */
+ 544, /* Xmm8 */
+ 560, /* Xmm9 */
+ 576, /* Xmm10 */
+ 592, /* Xmm11 */
+ 608, /* Xmm12 */
+ 624, /* Xmm13 */
+ 640, /* Xmm14 */
+ 656, /* Xmm15 */
+ 280, /* FloatSave.MxCsr */
+};
+
+#define AMD64_WINDOWS_SIZEOF_GREGSET 1232
+
/* Return nonzero if an argument of type TYPE should be passed
via one of the integer registers. */
static int
amd64_windows_passed_by_integer_register (struct type *type)
{
- switch (TYPE_CODE (type))
+ switch (type->code ())
{
case TYPE_CODE_INT:
case TYPE_CODE_ENUM:
case TYPE_CODE_CHAR:
case TYPE_CODE_PTR:
case TYPE_CODE_REF:
+ case TYPE_CODE_RVALUE_REF:
case TYPE_CODE_STRUCT:
case TYPE_CODE_UNION:
+ case TYPE_CODE_COMPLEX:
return (TYPE_LENGTH (type) == 1
|| TYPE_LENGTH (type) == 2
|| TYPE_LENGTH (type) == 4
static int
amd64_windows_passed_by_xmm_register (struct type *type)
{
- return ((TYPE_CODE (type) == TYPE_CODE_FLT
- || TYPE_CODE (type) == TYPE_CODE_DECFLOAT)
- && (TYPE_LENGTH (type) == 4 || TYPE_LENGTH (type) == 8));
+ return ((type->code () == TYPE_CODE_FLT
+ || type->code () == TYPE_CODE_DECFLOAT)
+ && (TYPE_LENGTH (type) == 4 || TYPE_LENGTH (type) == 8));
}
/* Return non-zero iff an argument of the given TYPE should be passed
gdb_assert (TYPE_LENGTH (type) <= 8);
memset (buf, 0, sizeof buf);
- memcpy (buf, valbuf, std::min (TYPE_LENGTH (type), (unsigned int) 8));
- regcache_cooked_write (regcache, regno, buf);
+ memcpy (buf, valbuf, std::min (TYPE_LENGTH (type), (ULONGEST) 8));
+ regcache->cooked_write (regno, buf);
}
/* Push the arguments for an inferior function call, and return
static CORE_ADDR
amd64_windows_push_arguments (struct regcache *regcache, int nargs,
struct value **args, CORE_ADDR sp,
- int struct_return)
+ function_call_return_method return_method)
{
int reg_idx = 0;
int i;
}
/* Reserve a register for the "hidden" argument. */
- if (struct_return)
+ if (return_method == return_method_struct)
reg_idx++;
for (i = 0; i < nargs; i++)
else if (amd64_windows_passed_by_xmm_register (type))
{
amd64_windows_store_arg_in_reg
- (regcache, args[i], AMD64_XMM0_REGNUM + reg_idx);
+ (regcache, args[i], AMD64_XMM0_REGNUM + reg_idx);
/* In case of varargs, these parameters must also be
passed via the integer registers. */
amd64_windows_store_arg_in_reg
amd64_windows_push_dummy_call
(struct gdbarch *gdbarch, struct value *function,
struct regcache *regcache, CORE_ADDR bp_addr,
- int nargs, struct value **args,
- CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr)
+ int nargs, struct value **args, CORE_ADDR sp,
+ function_call_return_method return_method, CORE_ADDR struct_addr)
{
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
gdb_byte buf[8];
/* Pass arguments. */
sp = amd64_windows_push_arguments (regcache, nargs, args, sp,
- struct_return);
+ return_method);
/* Pass "hidden" argument". */
- if (struct_return)
+ if (return_method == return_method_struct)
{
/* The "hidden" argument is passed throught the first argument
- register. */
+ register. */
const int arg_regnum = amd64_windows_dummy_call_integer_regs[0];
store_unsigned_integer (buf, 8, byte_order, struct_addr);
- regcache_cooked_write (regcache, arg_regnum, buf);
+ regcache->cooked_write (arg_regnum, buf);
}
/* Reserve some memory on the stack for the integer-parameter
/* Update the stack pointer... */
store_unsigned_integer (buf, 8, byte_order, sp);
- regcache_cooked_write (regcache, AMD64_RSP_REGNUM, buf);
+ regcache->cooked_write (AMD64_RSP_REGNUM, buf);
/* ...and fake a frame pointer. */
- regcache_cooked_write (regcache, AMD64_RBP_REGNUM, buf);
+ regcache->cooked_write (AMD64_RBP_REGNUM, buf);
return sp + 16;
}
/* See if our value is returned through a register. If it is, then
store the associated register number in REGNUM. */
- switch (TYPE_CODE (type))
+ switch (type->code ())
{
case TYPE_CODE_FLT:
- case TYPE_CODE_DECFLOAT:
- /* __m128, __m128i, __m128d, floats, and doubles are returned
- via XMM0. */
- if (len == 4 || len == 8 || len == 16)
- regnum = AMD64_XMM0_REGNUM;
- break;
+ /* floats, and doubles are returned via XMM0. */
+ if (len == 4 || len == 8)
+ regnum = AMD64_XMM0_REGNUM;
+ break;
+ case TYPE_CODE_ARRAY:
+ /* __m128, __m128i and __m128d are returned via XMM0. */
+ if (type->is_vector () && len == 16)
+ {
+ enum type_code code = TYPE_TARGET_TYPE (type)->code ();
+ if (code == TYPE_CODE_INT || code == TYPE_CODE_FLT)
+ {
+ regnum = AMD64_XMM0_REGNUM;
+ break;
+ }
+ }
+ /* fall through */
default:
- /* All other values that are 1, 2, 4 or 8 bytes long are returned
- via RAX. */
- if (len == 1 || len == 2 || len == 4 || len == 8)
- regnum = AMD64_RAX_REGNUM;
- break;
+ /* All other values that are 1, 2, 4 or 8 bytes long are returned
+ via RAX. */
+ if (len == 1 || len == 2 || len == 4 || len == 8)
+ regnum = AMD64_RAX_REGNUM;
+ else if (len == 16 && type->code () == TYPE_CODE_INT)
+ regnum = AMD64_XMM0_REGNUM;
+ break;
}
if (regnum < 0)
{
/* RAX contains the address where the return value has been stored. */
if (readbuf)
- {
+ {
ULONGEST addr;
regcache_raw_read_unsigned (regcache, AMD64_RAX_REGNUM, &addr);
{
/* Extract the return value from the register where it was stored. */
if (readbuf)
- regcache_raw_read_part (regcache, regnum, 0, len, readbuf);
+ regcache->raw_read_part (regnum, 0, len, readbuf);
if (writebuf)
- regcache_raw_write_part (regcache, regnum, 0, len, writebuf);
+ regcache->raw_write_part (regnum, 0, len, writebuf);
return RETURN_VALUE_REGISTER_CONVENTION;
}
}
call_dest = pc + 5 + extract_signed_integer (buf, 4, byte_order);
s = lookup_minimal_symbol_by_pc (call_dest);
if (s.minsym != NULL
- && MSYMBOL_LINKAGE_NAME (s.minsym) != NULL
- && strcmp (MSYMBOL_LINKAGE_NAME (s.minsym), "__main") == 0)
+ && s.minsym->linkage_name () != NULL
+ && strcmp (s.minsym->linkage_name (), "__main") == 0)
pc += 5;
}
}
AMD64_R15_REGNUM
};
-/* Return TRUE iff PC is the the range of the function corresponding to
+/* Return TRUE iff PC is the range of the function corresponding to
CACHE. */
static int
pe = pe_data (sec->objfile->obfd);
dir = &pe->pe_opthdr.DataDirectory[PE_EXCEPTION_TABLE];
- base = pe->pe_opthdr.ImageBase
- + ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
+ base = pe->pe_opthdr.ImageBase + objfile->text_section_offset ();
*image_base = base;
/* Find the entry.
= (indirect_addr
? lookup_minimal_symbol_by_pc (indirect_addr).minsym
: NULL);
- const char *symname = indsym ? MSYMBOL_LINKAGE_NAME (indsym) : NULL;
+ const char *symname = indsym ? indsym->linkage_name () : NULL;
if (symname)
{
return "UTF-16";
}
+/* Common parts for gdbarch initialization for Windows and Cygwin on AMD64. */
+
static void
-amd64_windows_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
+amd64_windows_init_abi_common (gdbarch_info info, struct gdbarch *gdbarch)
{
+ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+
/* The dwarf2 unwinder (appended very early by i386_gdbarch_init) is
preferred over the SEH one. The reasons are:
- - binaries without SEH but with dwarf2 debug info are correcly handled
+ - binaries without SEH but with dwarf2 debug info are correctly handled
(although they aren't ABI compliant, gcc before 4.7 didn't emit SEH
info).
- dwarf3 DW_OP_call_frame_cfa is correctly handled (it can only be
*/
frame_unwind_append_unwinder (gdbarch, &amd64_windows_frame_unwind);
- amd64_init_abi (info, gdbarch);
-
- windows_init_abi (info, gdbarch);
-
- /* On Windows, "long"s are only 32bit. */
- set_gdbarch_long_bit (gdbarch, 32);
+ amd64_init_abi (info, gdbarch,
+ amd64_target_description (X86_XSTATE_SSE_MASK, false));
/* Function calls. */
set_gdbarch_push_dummy_call (gdbarch, amd64_windows_push_dummy_call);
set_gdbarch_skip_prologue (gdbarch, amd64_windows_skip_prologue);
+ tdep->gregset_reg_offset = amd64_windows_gregset_reg_offset;
+ tdep->gregset_num_regs = ARRAY_SIZE (amd64_windows_gregset_reg_offset);
+ tdep->sizeof_gregset = AMD64_WINDOWS_SIZEOF_GREGSET;
+ tdep->sizeof_fpregset = 0;
+
+ /* Core file support. */
+ set_gdbarch_core_xfer_shared_libraries
+ (gdbarch, windows_core_xfer_shared_libraries);
+ set_gdbarch_core_pid_to_str (gdbarch, windows_core_pid_to_str);
+
set_gdbarch_auto_wide_charset (gdbarch, amd64_windows_auto_wide_charset);
}
-/* -Wmissing-prototypes */
-extern initialize_file_ftype _initialize_amd64_windows_tdep;
+/* gdbarch initialization for Windows on AMD64. */
+
+static void
+amd64_windows_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
+{
+ amd64_windows_init_abi_common (info, gdbarch);
+ windows_init_abi (info, gdbarch);
+ /* On Windows, "long"s are only 32bit. */
+ set_gdbarch_long_bit (gdbarch, 32);
+}
+
+/* gdbarch initialization for Cygwin on AMD64. */
+
+static void
+amd64_cygwin_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
+{
+ amd64_windows_init_abi_common (info, gdbarch);
+ cygwin_init_abi (info, gdbarch);
+}
+
+static gdb_osabi
+amd64_windows_osabi_sniffer (bfd *abfd)
+{
+ const char *target_name = bfd_get_target (abfd);
+
+ if (!streq (target_name, "pei-x86-64"))
+ return GDB_OSABI_UNKNOWN;
+
+ if (is_linked_with_cygwin_dll (abfd))
+ return GDB_OSABI_CYGWIN;
+
+ return GDB_OSABI_WINDOWS;
+}
+
+static enum gdb_osabi
+amd64_cygwin_core_osabi_sniffer (bfd *abfd)
+{
+ const char *target_name = bfd_get_target (abfd);
+
+ /* Cygwin uses elf core dumps. Do not claim all ELF executables,
+ check whether there is a .reg section of proper size. */
+ if (strcmp (target_name, "elf64-x86-64") == 0)
+ {
+ asection *section = bfd_get_section_by_name (abfd, ".reg");
+ if (section != nullptr
+ && bfd_section_size (section) == AMD64_WINDOWS_SIZEOF_GREGSET)
+ return GDB_OSABI_CYGWIN;
+ }
+
+ return GDB_OSABI_UNKNOWN;
+}
+
+void _initialize_amd64_windows_tdep ();
void
-_initialize_amd64_windows_tdep (void)
+_initialize_amd64_windows_tdep ()
{
+ gdbarch_register_osabi (bfd_arch_i386, bfd_mach_x86_64, GDB_OSABI_WINDOWS,
+ amd64_windows_init_abi);
gdbarch_register_osabi (bfd_arch_i386, bfd_mach_x86_64, GDB_OSABI_CYGWIN,
- amd64_windows_init_abi);
+ amd64_cygwin_init_abi);
+
+ gdbarch_register_osabi_sniffer (bfd_arch_i386, bfd_target_coff_flavour,
+ amd64_windows_osabi_sniffer);
+
+ /* Cygwin uses elf core dumps. */
+ gdbarch_register_osabi_sniffer (bfd_arch_i386, bfd_target_elf_flavour,
+ amd64_cygwin_core_osabi_sniffer);
+
}
projects / deliverable / binutils-gdb.git / blobdiff