-/* Copyright (C) 2009-2015 Free Software Foundation, Inc.
+/* Copyright (C) 2009-2023 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[] =
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:
- return (TYPE_LENGTH (type) == 1
- || TYPE_LENGTH (type) == 2
- || TYPE_LENGTH (type) == 4
- || TYPE_LENGTH (type) == 8);
+ case TYPE_CODE_COMPLEX:
+ return (type->length () == 1
+ || type->length () == 2
+ || type->length () == 4
+ || type->length () == 8);
default:
return 0;
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 () == 4 || type->length () == 8));
}
/* Return non-zero iff an argument of the given TYPE should be passed
if (amd64_windows_passed_by_pointer (value_type (args[i])))
{
struct type *type = value_type (args[i]);
- const gdb_byte *valbuf = value_contents (args[i]);
- const int len = TYPE_LENGTH (type);
+ const gdb_byte *valbuf = value_contents (args[i]).data ();
+ const int len = type->length ();
/* Store a copy of that argument on the stack, aligned to
a 16 bytes boundary, and then use the copy's address as
struct value *arg, int regno)
{
struct type *type = value_type (arg);
- const gdb_byte *valbuf = value_contents (arg);
+ const gdb_byte *valbuf = value_contents (arg).data ();
gdb_byte buf[8];
- gdb_assert (TYPE_LENGTH (type) <= 8);
+ gdb_assert (type->length () <= 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 (), (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++)
{
struct type *type = value_type (args[i]);
- int len = TYPE_LENGTH (type);
+ int len = type->length ();
int on_stack_p = 1;
if (reg_idx < ARRAY_SIZE (amd64_windows_dummy_call_integer_regs))
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
for (i = 0; i < num_stack_args; i++)
{
struct type *type = value_type (stack_args[i]);
- const gdb_byte *valbuf = value_contents (stack_args[i]);
+ const gdb_byte *valbuf = value_contents (stack_args[i]).data ();
- write_memory (sp + element * 8, valbuf, TYPE_LENGTH (type));
- element += ((TYPE_LENGTH (type) + 7) / 8);
+ write_memory (sp + element * 8, valbuf, type->length ());
+ element += ((type->length () + 7) / 8);
}
return sp;
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;
}
struct type *type, struct regcache *regcache,
gdb_byte *readbuf, const gdb_byte *writebuf)
{
- int len = TYPE_LENGTH (type);
+ int len = type->length ();
int regnum = -1;
/* 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 ()->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);
- read_memory (addr, readbuf, TYPE_LENGTH (type));
+ read_memory (addr, readbuf, type->length ());
}
return RETURN_VALUE_ABI_RETURNS_ADDRESS;
}
{
/* 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;
}
}
gdb_byte buf[4];
if (target_read_memory (pc + 1, buf, sizeof buf) == 0)
- {
- struct bound_minimal_symbol s;
- CORE_ADDR call_dest;
+ {
+ struct bound_minimal_symbol s;
+ CORE_ADDR call_dest;
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)
- pc += 5;
- }
+ s = lookup_minimal_symbol_by_pc (call_dest);
+ if (s.minsym != NULL
+ && s.minsym->linkage_name () != NULL
+ && strcmp (s.minsym->linkage_name (), "__main") == 0)
+ pc += 5;
+ }
}
return pc;
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
Return 1 if an epilogue sequence was recognized, 0 otherwise. */
static int
-amd64_windows_frame_decode_epilogue (struct frame_info *this_frame,
+amd64_windows_frame_decode_epilogue (frame_info_ptr this_frame,
struct amd64_windows_frame_cache *cache)
{
/* According to MSDN an epilogue "must consist of either an add RSP,constant
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;
/* Decode and execute unwind insns at UNWIND_INFO. */
static void
-amd64_windows_frame_decode_insns (struct frame_info *this_frame,
+amd64_windows_frame_decode_insns (frame_info_ptr this_frame,
struct amd64_windows_frame_cache *cache,
CORE_ADDR unwind_info)
{
CORE_ADDR cur_sp = cache->sp;
struct gdbarch *gdbarch = get_frame_arch (this_frame);
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
- int j;
+ int first = 1;
+
+ /* There are at least 3 possibilities to share an unwind info entry:
+ 1. Two different runtime_function entries (in .pdata) can point to the
+ same unwind info entry. There is no such indication while unwinding,
+ so we don't really care about that case. We suppose this scheme is
+ used to save memory when the unwind entries are exactly the same.
+ 2. Chained unwind_info entries, with no unwind codes (no prologue).
+ There is a major difference with the previous case: the pc range for
+ the function is different (in case 1, the pc range comes from the
+ runtime_function entry; in case 2, the pc range for the chained entry
+ comes from the first unwind entry). Case 1 cannot be used instead as
+ the pc is not in the prologue. This case is officially documented.
+ (There might be unwind code in the first unwind entry to handle
+ additional unwinding). GCC (at least until gcc 5.0) doesn't chain
+ entries.
+ 3. Undocumented unwind info redirection. Hard to know the exact purpose,
+ so it is considered as a memory optimization of case 2.
+ */
- for (j = 0; ; j++)
+ if (unwind_info & 1)
+ {
+ /* Unofficially documented unwind info redirection, when UNWIND_INFO
+ address is odd (http://www.codemachine.com/article_x64deepdive.html).
+ */
+ struct external_pex64_runtime_function d;
+
+ if (target_read_memory (cache->image_base + (unwind_info & ~1),
+ (gdb_byte *) &d, sizeof (d)) != 0)
+ return;
+
+ cache->start_rva
+ = extract_unsigned_integer (d.rva_BeginAddress, 4, byte_order);
+ cache->end_rva
+ = extract_unsigned_integer (d.rva_EndAddress, 4, byte_order);
+ unwind_info
+ = extract_unsigned_integer (d.rva_UnwindData, 4, byte_order);
+ }
+
+ while (1)
{
struct external_pex64_unwind_info ex_ui;
/* There are at most 256 16-bit unwind insns. */
gdb_byte *end_insns;
unsigned char codes_count;
unsigned char frame_reg;
- unsigned char frame_off;
+ CORE_ADDR start;
/* Read and decode header. */
if (target_read_memory (cache->image_base + unwind_info,
(gdb_byte *) &ex_ui, sizeof (ex_ui)) != 0)
return;
- if (frame_debug)
- fprintf_unfiltered
- (gdb_stdlog,
- "amd64_windows_frame_decodes_insn: "
- "%s: ver: %02x, plgsz: %02x, cnt: %02x, frame: %02x\n",
- paddress (gdbarch, unwind_info),
- ex_ui.Version_Flags, ex_ui.SizeOfPrologue,
- ex_ui.CountOfCodes, ex_ui.FrameRegisterOffset);
+ frame_debug_printf ("%s: ver: %02x, plgsz: %02x, cnt: %02x, frame: %02x",
+ paddress (gdbarch, unwind_info),
+ ex_ui.Version_Flags, ex_ui.SizeOfPrologue,
+ ex_ui.CountOfCodes, ex_ui.FrameRegisterOffset);
/* Check version. */
if (PEX64_UWI_VERSION (ex_ui.Version_Flags) != 1
&& PEX64_UWI_VERSION (ex_ui.Version_Flags) != 2)
return;
- if (j == 0
- && (cache->pc >=
- cache->image_base + cache->start_rva + ex_ui.SizeOfPrologue))
+ start = cache->image_base + cache->start_rva;
+ if (first
+ && !(cache->pc >= start && cache->pc < start + ex_ui.SizeOfPrologue))
{
- /* Not in the prologue. We want to detect if the PC points to an
- epilogue. If so, the epilogue detection+decoding function is
+ /* We want to detect if the PC points to an epilogue. This needs
+ to be checked only once, and an epilogue can be anywhere but in
+ the prologue. If so, the epilogue detection+decoding function is
sufficient. Otherwise, the unwinder will consider that the PC
is in the body of the function and will need to decode unwind
info. */
get_frame_register (this_frame, frreg, buf);
save_addr = extract_unsigned_integer (buf, 8, byte_order);
- if (frame_debug)
- fprintf_unfiltered (gdb_stdlog, " frame_reg=%s, val=%s\n",
- gdbarch_register_name (gdbarch, frreg),
- paddress (gdbarch, save_addr));
+ frame_debug_printf (" frame_reg=%s, val=%s",
+ gdbarch_register_name (gdbarch, frreg),
+ paddress (gdbarch, save_addr));
}
/* Read opcodes. */
{
int reg;
- if (frame_debug)
- fprintf_unfiltered
- (gdb_stdlog, " op #%u: off=0x%02x, insn=0x%02x\n",
- (unsigned) (p - insns), p[0], p[1]);
-
- /* Virtually execute the operation. */
- if (cache->pc >= cache->image_base + cache->start_rva + p[0])
+ /* Virtually execute the operation if the pc is after the
+ corresponding instruction (that does matter in case of break
+ within the prologue). Note that for chained info (!first), the
+ prologue has been fully executed. */
+ if (cache->pc >= start + p[0] || cache->pc < start)
{
+ frame_debug_printf (" op #%u: off=0x%02x, insn=0x%02x",
+ (unsigned) (p - insns), p[0], p[1]);
+
/* If there is no frame registers defined, the current value of
rsp is used instead. */
if (frame_reg == 0)
save_addr = cur_sp;
+ reg = -1;
+
switch (PEX64_UNWCODE_CODE (p[1]))
{
case UWOP_PUSH_NONVOL:
case UWOP_SAVE_NONVOL:
reg = amd64_windows_w2gdb_regnum[PEX64_UNWCODE_INFO (p[1])];
cache->prev_reg_addr[reg] = save_addr
- - 8 * extract_unsigned_integer (p + 2, 2, byte_order);
+ + 8 * extract_unsigned_integer (p + 2, 2, byte_order);
break;
case UWOP_SAVE_NONVOL_FAR:
reg = amd64_windows_w2gdb_regnum[PEX64_UNWCODE_INFO (p[1])];
cache->prev_reg_addr[reg] = save_addr
- - 8 * extract_unsigned_integer (p + 2, 4, byte_order);
+ + 8 * extract_unsigned_integer (p + 2, 4, byte_order);
break;
case UWOP_SAVE_XMM128:
cache->prev_xmm_addr[PEX64_UNWCODE_INFO (p[1])] =
default:
return;
}
+
+ /* Display address where the register was saved. */
+ if (reg >= 0)
+ frame_debug_printf (" [reg %s at %s]",
+ gdbarch_register_name (gdbarch, reg),
+ paddress (gdbarch,
+ cache->prev_reg_addr[reg]));
}
/* Adjust with the length of the opcode. */
}
}
if (PEX64_UWI_FLAGS (ex_ui.Version_Flags) != UNW_FLAG_CHAININFO)
- break;
+ {
+ /* End of unwind info. */
+ break;
+ }
else
{
/* Read the chained unwind info. */
struct external_pex64_runtime_function d;
CORE_ADDR chain_vma;
+ /* Not anymore the first entry. */
+ first = 0;
+
+ /* Stay aligned on word boundary. */
chain_vma = cache->image_base + unwind_info
+ sizeof (ex_ui) + ((codes_count + 1) & ~1) * 2;
if (target_read_memory (chain_vma, (gdb_byte *) &d, sizeof (d)) != 0)
return;
+ /* Decode begin/end. This may be different from .pdata index, as
+ an unwind info may be shared by several functions (in particular
+ if many functions have the same prolog and handler. */
cache->start_rva =
extract_unsigned_integer (d.rva_BeginAddress, 4, byte_order);
cache->end_rva =
unwind_info =
extract_unsigned_integer (d.rva_UnwindData, 4, byte_order);
- if (frame_debug)
- fprintf_unfiltered
- (gdb_stdlog,
- "amd64_windows_frame_decodes_insn (next in chain):"
- " unwind_data=%s, start_rva=%s, end_rva=%s\n",
- paddress (gdbarch, unwind_info),
- paddress (gdbarch, cache->start_rva),
- paddress (gdbarch, cache->end_rva));
+ frame_debug_printf ("next in chain: unwind_data=%s, start_rva=%s, "
+ "end_rva=%s",
+ paddress (gdbarch, unwind_info),
+ paddress (gdbarch, cache->start_rva),
+ paddress (gdbarch, cache->end_rva));
}
/* Allow the user to break this loop. */
cache->prev_rip_addr = cur_sp;
cache->prev_sp = cur_sp + 8;
- if (frame_debug)
- fprintf_unfiltered (gdb_stdlog, " prev_sp: %s, prev_pc @%s\n",
- paddress (gdbarch, cache->prev_sp),
- paddress (gdbarch, cache->prev_rip_addr));
+ frame_debug_printf (" prev_sp: %s, prev_pc @%s",
+ paddress (gdbarch, cache->prev_sp),
+ paddress (gdbarch, cache->prev_rip_addr));
}
/* Find SEH unwind info for PC, returning 0 on success.
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.
break;
}
- if (frame_debug)
- fprintf_unfiltered
- (gdb_stdlog,
- "amd64_windows_find_unwind_data: image_base=%s, unwind_data=%s\n",
- paddress (gdbarch, base), paddress (gdbarch, *unwind_info));
+ frame_debug_printf ("image_base=%s, unwind_data=%s",
+ paddress (gdbarch, base),
+ paddress (gdbarch, *unwind_info));
- if (*unwind_info & 1)
- {
- /* Unofficially documented unwind info redirection, when UNWIND_INFO
- address is odd (http://www.codemachine.com/article_x64deepdive.html).
- */
- struct external_pex64_runtime_function d;
- CORE_ADDR sa, ea;
-
- if (target_read_memory (base + (*unwind_info & ~1),
- (gdb_byte *) &d, sizeof (d)) != 0)
- return -1;
-
- *start_rva =
- extract_unsigned_integer (d.rva_BeginAddress, 4, byte_order);
- *end_rva = extract_unsigned_integer (d.rva_EndAddress, 4, byte_order);
- *unwind_info =
- extract_unsigned_integer (d.rva_UnwindData, 4, byte_order);
-
- }
return 0;
}
for THIS_FRAME. */
static struct amd64_windows_frame_cache *
-amd64_windows_frame_cache (struct frame_info *this_frame, void **this_cache)
+amd64_windows_frame_cache (frame_info_ptr this_frame, void **this_cache)
{
struct gdbarch *gdbarch = get_frame_arch (this_frame);
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;
using the standard Windows x64 SEH info. */
static struct value *
-amd64_windows_frame_prev_register (struct frame_info *this_frame,
+amd64_windows_frame_prev_register (frame_info_ptr this_frame,
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)
- fprintf_unfiltered (gdb_stdlog,
- "amd64_windows_frame_prev_register %s for sp=%s\n",
- gdbarch_register_name (gdbarch, regnum),
- paddress (gdbarch, cache->prev_sp));
+ frame_debug_printf ("%s for sp=%s",
+ gdbarch_register_name (gdbarch, regnum),
+ paddress (gdbarch, cache->prev_sp));
if (regnum >= AMD64_XMM0_REGNUM && regnum <= AMD64_XMM0_REGNUM + 15)
prev = cache->prev_xmm_addr[regnum - AMD64_XMM0_REGNUM];
else
prev = 0;
- if (prev && frame_debug)
- fprintf_unfiltered (gdb_stdlog, " -> at %s\n", paddress (gdbarch, prev));
+ if (prev != 0)
+ frame_debug_printf (" -> at %s", paddress (gdbarch, prev));
if (prev)
{
the standard Windows x64 SEH info. */
static void
-amd64_windows_frame_this_id (struct frame_info *this_frame, void **this_cache,
+amd64_windows_frame_this_id (frame_info_ptr 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);
static const struct frame_unwind amd64_windows_frame_unwind =
{
+ "amd64 windows",
NORMAL_FRAME,
default_frame_unwind_stop_reason,
&amd64_windows_frame_this_id,
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;
/* Check Win64 DLL jmp trampolines and find jump destination. */
static CORE_ADDR
-amd64_windows_skip_trampoline_code (struct frame_info *frame, CORE_ADDR pc)
+amd64_windows_skip_trampoline_code (frame_info_ptr frame, CORE_ADDR pc)
{
CORE_ADDR destination = 0;
struct gdbarch *gdbarch = get_frame_arch (frame);
= (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);
+ i386_gdbarch_tdep *tdep = gdbarch_tdep<i386_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 / thirdparty / binutils-gdb.git / blobdiff