-/* Copyright (C) 2009-2015 Free Software Foundation, Inc.
+/* Copyright (C) 2009-2020 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"
#include "coff/pe.h"
#include "libcoff.h"
#include "value.h"
+#include <algorithm>
/* The registers used to pass integer arguments during a function call. */
static int amd64_windows_dummy_call_integer_regs[] =
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:
return (TYPE_LENGTH (type) == 1
static int
amd64_windows_passed_by_xmm_register (struct type *type)
{
- return ((TYPE_CODE (type) == TYPE_CODE_FLT
- || TYPE_CODE (type) == TYPE_CODE_DECFLOAT)
+ return ((type->code () == TYPE_CODE_FLT
+ || type->code () == TYPE_CODE_DECFLOAT)
&& (TYPE_LENGTH (type) == 4 || TYPE_LENGTH (type) == 8));
}
gdb_assert (TYPE_LENGTH (type) <= 8);
memset (buf, 0, sizeof buf);
- memcpy (buf, valbuf, min (TYPE_LENGTH (type), 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;
- struct value **stack_args = alloca (nargs * sizeof (struct value *));
+ struct value **stack_args = XALLOCAVEC (struct value *, nargs);
int num_stack_args = 0;
int num_elements = 0;
int element = 0;
in inferior memory. So use a copy of the ARGS table, to avoid
modifying the original one. */
{
- struct value **args1 = alloca (nargs * sizeof (struct value *));
+ struct value **args1 = XALLOCAVEC (struct value *, nargs);
memcpy (args1, args, nargs * sizeof (struct value *));
sp = amd64_windows_adjust_args_passed_by_pointer (args1, nargs, sp);
}
/* Reserve a register for the "hidden" argument. */
- if (struct_return)
+ if (return_method == return_method_struct)
reg_idx++;
for (i = 0; i < nargs; i++)
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. */
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:
{
/* 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
cache->prev_reg_addr[amd64_windows_w2gdb_regnum[reg]] = cur_sp;
cur_sp += 8;
+ pc += rex ? 2 : 1;
}
else
break;
{
/* rex jmp reg */
gdb_byte op1;
- unsigned int reg;
- gdb_byte buf[8];
if (target_read_memory (pc + 2, &op1, 1) != 0)
return -1;
address is odd (http://www.codemachine.com/article_x64deepdive.html).
*/
struct external_pex64_runtime_function d;
- CORE_ADDR sa, ea;
if (target_read_memory (cache->image_base + (unwind_info & ~1),
(gdb_byte *) &d, sizeof (d)) != 0)
gdb_byte *end_insns;
unsigned char codes_count;
unsigned char frame_reg;
- unsigned char frame_off;
CORE_ADDR start;
/* Read and decode header. */
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.
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
struct amd64_windows_frame_cache *cache;
gdb_byte buf[8];
- struct obj_section *sec;
- pe_data_type *pe;
- IMAGE_DATA_DIRECTORY *dir;
- CORE_ADDR image_base;
CORE_ADDR pc;
- struct objfile *objfile;
- unsigned long lo, hi;
CORE_ADDR unwind_info = 0;
if (*this_cache)
- return *this_cache;
+ return (struct amd64_windows_frame_cache *) *this_cache;
cache = FRAME_OBSTACK_ZALLOC (struct amd64_windows_frame_cache);
*this_cache = cache;
void **this_cache, int regnum)
{
struct gdbarch *gdbarch = get_frame_arch (this_frame);
- enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
struct amd64_windows_frame_cache *cache =
amd64_windows_frame_cache (this_frame, this_cache);
- struct value *val;
CORE_ADDR prev;
if (frame_debug)
amd64_windows_frame_this_id (struct frame_info *this_frame, void **this_cache,
struct frame_id *this_id)
{
- struct gdbarch *gdbarch = get_frame_arch (this_frame);
struct amd64_windows_frame_cache *cache =
amd64_windows_frame_cache (this_frame, this_cache);
else if (target_read_memory (image_base + unwind_info,
(gdb_byte *) &ex_ui, sizeof (ex_ui)) == 0
&& PEX64_UWI_VERSION (ex_ui.Version_Flags) == 1)
- return max (pc, image_base + start_rva + ex_ui.SizeOfPrologue);
+ return std::max (pc, image_base + start_rva + ex_ui.SizeOfPrologue);
}
/* See if we can determine the end of the prologue via the symbol
= skip_prologue_using_sal (gdbarch, func_addr);
if (post_prologue_pc != 0)
- return max (pc, post_prologue_pc);
+ return std::max (pc, post_prologue_pc);
}
return pc;
= (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_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;
+}
+
+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_CYGWIN,
+ 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_cygwin_init_abi);
+
+ gdbarch_register_osabi_sniffer (bfd_arch_i386, bfd_target_coff_flavour,
+ amd64_windows_osabi_sniffer);
}
projects / deliverable / binutils-gdb.git / blobdiff