2 * x86-64 signal handling routines
4 * Copyright 1999, 2005 Alexandre Julliard
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
24 #include "wine/port.h"
32 #ifdef HAVE_UCONTEXT_H
33 # include <ucontext.h>
40 #ifdef HAVE_MACHINE_SYSARCH_H
41 # include <machine/sysarch.h>
44 #ifdef HAVE_SYS_PARAM_H
45 # include <sys/param.h>
47 #ifdef HAVE_SYS_SIGNAL_H
48 # include <sys/signal.h>
51 #define NONAMELESSUNION
52 #define NONAMELESSSTRUCT
54 #define WIN32_NO_STATUS
57 #include "wine/library.h"
58 #include "wine/exception.h"
59 #include "ntdll_misc.h"
60 #include "wine/debug.h"
62 #ifdef HAVE_VALGRIND_MEMCHECK_H
63 #include <valgrind/memcheck.h>
66 WINE_DEFAULT_DEBUG_CHANNEL(seh
);
68 struct _DISPATCHER_CONTEXT
;
70 typedef LONG (WINAPI
*PC_LANGUAGE_EXCEPTION_HANDLER
)( EXCEPTION_POINTERS
*ptrs
, ULONG64 frame
);
71 typedef EXCEPTION_DISPOSITION (WINAPI
*PEXCEPTION_ROUTINE
)( EXCEPTION_RECORD
*rec
,
74 struct _DISPATCHER_CONTEXT
*dispatch
);
76 typedef struct _DISPATCHER_CONTEXT
80 PRUNTIME_FUNCTION FunctionEntry
;
81 ULONG64 EstablisherFrame
;
83 PCONTEXT ContextRecord
;
84 PEXCEPTION_ROUTINE LanguageHandler
;
86 PUNWIND_HISTORY_TABLE HistoryTable
;
88 } DISPATCHER_CONTEXT
, *PDISPATCHER_CONTEXT
;
90 typedef struct _SCOPE_TABLE
100 } SCOPE_TABLE
, *PSCOPE_TABLE
;
103 /***********************************************************************
104 * signal context platform-specific definitions
108 #include <asm/prctl.h>
109 extern int arch_prctl(int func
, void *ptr
);
111 #define RAX_sig(context) ((context)->uc_mcontext.gregs[REG_RAX])
112 #define RBX_sig(context) ((context)->uc_mcontext.gregs[REG_RBX])
113 #define RCX_sig(context) ((context)->uc_mcontext.gregs[REG_RCX])
114 #define RDX_sig(context) ((context)->uc_mcontext.gregs[REG_RDX])
115 #define RSI_sig(context) ((context)->uc_mcontext.gregs[REG_RSI])
116 #define RDI_sig(context) ((context)->uc_mcontext.gregs[REG_RDI])
117 #define RBP_sig(context) ((context)->uc_mcontext.gregs[REG_RBP])
118 #define R8_sig(context) ((context)->uc_mcontext.gregs[REG_R8])
119 #define R9_sig(context) ((context)->uc_mcontext.gregs[REG_R9])
120 #define R10_sig(context) ((context)->uc_mcontext.gregs[REG_R10])
121 #define R11_sig(context) ((context)->uc_mcontext.gregs[REG_R11])
122 #define R12_sig(context) ((context)->uc_mcontext.gregs[REG_R12])
123 #define R13_sig(context) ((context)->uc_mcontext.gregs[REG_R13])
124 #define R14_sig(context) ((context)->uc_mcontext.gregs[REG_R14])
125 #define R15_sig(context) ((context)->uc_mcontext.gregs[REG_R15])
127 #define CS_sig(context) (*((WORD *)&(context)->uc_mcontext.gregs[REG_CSGSFS] + 0))
128 #define GS_sig(context) (*((WORD *)&(context)->uc_mcontext.gregs[REG_CSGSFS] + 1))
129 #define FS_sig(context) (*((WORD *)&(context)->uc_mcontext.gregs[REG_CSGSFS] + 2))
131 #define RSP_sig(context) ((context)->uc_mcontext.gregs[REG_RSP])
132 #define RIP_sig(context) ((context)->uc_mcontext.gregs[REG_RIP])
133 #define EFL_sig(context) ((context)->uc_mcontext.gregs[REG_EFL])
134 #define TRAP_sig(context) ((context)->uc_mcontext.gregs[REG_TRAPNO])
135 #define ERROR_sig(context) ((context)->uc_mcontext.gregs[REG_ERR])
137 #define FPU_sig(context) ((XMM_SAVE_AREA32 *)((context)->uc_mcontext.fpregs))
139 #elif defined(__FreeBSD__)
140 #include <sys/ucontext.h>
142 #define RAX_sig(context) ((context)->uc_mcontext.mc_rax)
143 #define RBX_sig(context) ((context)->uc_mcontext.mc_rbx)
144 #define RCX_sig(context) ((context)->uc_mcontext.mc_rcx)
145 #define RDX_sig(context) ((context)->uc_mcontext.mc_rdx)
146 #define RSI_sig(context) ((context)->uc_mcontext.mc_rsi)
147 #define RDI_sig(context) ((context)->uc_mcontext.mc_rdi)
148 #define RBP_sig(context) ((context)->uc_mcontext.mc_rbp)
149 #define R8_sig(context) ((context)->uc_mcontext.mc_r8)
150 #define R9_sig(context) ((context)->uc_mcontext.mc_r9)
151 #define R10_sig(context) ((context)->uc_mcontext.mc_r10)
152 #define R11_sig(context) ((context)->uc_mcontext.mc_r11)
153 #define R12_sig(context) ((context)->uc_mcontext.mc_r12)
154 #define R13_sig(context) ((context)->uc_mcontext.mc_r13)
155 #define R14_sig(context) ((context)->uc_mcontext.mc_r14)
156 #define R15_sig(context) ((context)->uc_mcontext.mc_r15)
158 #define CS_sig(context) ((context)->uc_mcontext.mc_cs)
159 #define DS_sig(context) ((context)->uc_mcontext.mc_ds)
160 #define ES_sig(context) ((context)->uc_mcontext.mc_es)
161 #define FS_sig(context) ((context)->uc_mcontext.mc_fs)
162 #define GS_sig(context) ((context)->uc_mcontext.mc_gs)
163 #define SS_sig(context) ((context)->uc_mcontext.mc_ss)
165 #define EFL_sig(context) ((context)->uc_mcontext.mc_rflags)
167 #define RIP_sig(context) ((context)->uc_mcontext.mc_rip)
168 #define RSP_sig(context) ((context)->uc_mcontext.mc_rsp)
169 #define TRAP_sig(context) ((context)->uc_mcontext.mc_trapno)
170 #define ERROR_sig(context) ((context)->uc_mcontext.mc_err)
172 #define FPU_sig(context) ((XMM_SAVE_AREA32 *)((context)->uc_mcontext.mc_fpstate))
174 #elif defined(__NetBSD__)
175 #include <sys/ucontext.h>
176 #include <sys/types.h>
179 #define RAX_sig(context) ((context)->uc_mcontext.__gregs[_REG_RAX])
180 #define RBX_sig(context) ((context)->uc_mcontext.__gregs[_REG_RBX])
181 #define RCX_sig(context) ((context)->uc_mcontext.__gregs[_REG_RCX])
182 #define RDX_sig(context) ((context)->uc_mcontext.__gregs[_REG_RDX])
183 #define RSI_sig(context) ((context)->uc_mcontext.__gregs[_REG_RSI])
184 #define RDI_sig(context) ((context)->uc_mcontext.__gregs[_REG_RDI])
185 #define RBP_sig(context) ((context)->uc_mcontext.__gregs[_REG_RBP])
186 #define R8_sig(context) ((context)->uc_mcontext.__gregs[_REG_R8])
187 #define R9_sig(context) ((context)->uc_mcontext.__gregs[_REG_R9])
188 #define R10_sig(context) ((context)->uc_mcontext.__gregs[_REG_R10])
189 #define R11_sig(context) ((context)->uc_mcontext.__gregs[_REG_R11])
190 #define R12_sig(context) ((context)->uc_mcontext.__gregs[_REG_R12])
191 #define R13_sig(context) ((context)->uc_mcontext.__gregs[_REG_R13])
192 #define R14_sig(context) ((context)->uc_mcontext.__gregs[_REG_R14])
193 #define R15_sig(context) ((context)->uc_mcontext.__gregs[_REG_R15])
195 #define CS_sig(context) ((context)->uc_mcontext.__gregs[_REG_CS])
196 #define DS_sig(context) ((context)->uc_mcontext.__gregs[_REG_DS])
197 #define ES_sig(context) ((context)->uc_mcontext.__gregs[_REG_ES])
198 #define FS_sig(context) ((context)->uc_mcontext.__gregs[_REG_FS])
199 #define GS_sig(context) ((context)->uc_mcontext.__gregs[_REG_GS])
200 #define SS_sig(context) ((context)->uc_mcontext.__gregs[_REG_SS])
202 #define EFL_sig(context) ((context)->uc_mcontext.__gregs[_REG_RFL])
204 #define RIP_sig(context) (*((unsigned long*)&(context)->uc_mcontext.__gregs[_REG_RIP]))
205 #define RSP_sig(context) (*((unsigned long*)&(context)->uc_mcontext.__gregs[_REG_URSP]))
207 #define TRAP_sig(context) ((context)->uc_mcontext.__gregs[_REG_TRAPNO])
208 #define ERROR_sig(context) ((context)->uc_mcontext.__gregs[_REG_ERR])
210 #define FPU_sig(context) ((XMM_SAVE_AREA32 *)((context)->uc_mcontext.__fpregs))
212 #error You must define the signal context functions for your platform
217 TRAP_x86_UNKNOWN
= -1, /* Unknown fault (TRAP_sig not defined) */
218 TRAP_x86_DIVIDE
= 0, /* Division by zero exception */
219 TRAP_x86_TRCTRAP
= 1, /* Single-step exception */
220 TRAP_x86_NMI
= 2, /* NMI interrupt */
221 TRAP_x86_BPTFLT
= 3, /* Breakpoint exception */
222 TRAP_x86_OFLOW
= 4, /* Overflow exception */
223 TRAP_x86_BOUND
= 5, /* Bound range exception */
224 TRAP_x86_PRIVINFLT
= 6, /* Invalid opcode exception */
225 TRAP_x86_DNA
= 7, /* Device not available exception */
226 TRAP_x86_DOUBLEFLT
= 8, /* Double fault exception */
227 TRAP_x86_FPOPFLT
= 9, /* Coprocessor segment overrun */
228 TRAP_x86_TSSFLT
= 10, /* Invalid TSS exception */
229 TRAP_x86_SEGNPFLT
= 11, /* Segment not present exception */
230 TRAP_x86_STKFLT
= 12, /* Stack fault */
231 TRAP_x86_PROTFLT
= 13, /* General protection fault */
232 TRAP_x86_PAGEFLT
= 14, /* Page fault */
233 TRAP_x86_ARITHTRAP
= 16, /* Floating point exception */
234 TRAP_x86_ALIGNFLT
= 17, /* Alignment check exception */
235 TRAP_x86_MCHK
= 18, /* Machine check exception */
236 TRAP_x86_CACHEFLT
= 19 /* Cache flush exception */
239 static const size_t teb_size
= 0x2000; /* we reserve two pages for the TEB */
240 static size_t signal_stack_size
;
242 typedef void (*raise_func
)( EXCEPTION_RECORD
*rec
, CONTEXT
*context
);
243 typedef int (*wine_signal_handler
)(unsigned int sig
);
245 static wine_signal_handler handlers
[256];
248 /***********************************************************************
249 * Definitions for Win32 unwind tables
254 RUNTIME_FUNCTION chain
;
272 BYTE frame_offset
: 4;
273 struct opcode opcodes
[1]; /* info->count entries */
274 /* followed by handler_data */
277 #define UWOP_PUSH_NONVOL 0
278 #define UWOP_ALLOC_LARGE 1
279 #define UWOP_ALLOC_SMALL 2
280 #define UWOP_SET_FPREG 3
281 #define UWOP_SAVE_NONVOL 4
282 #define UWOP_SAVE_NONVOL_FAR 5
283 #define UWOP_SAVE_XMM128 8
284 #define UWOP_SAVE_XMM128_FAR 9
285 #define UWOP_PUSH_MACHFRAME 10
287 static void dump_unwind_info( ULONG64 base
, RUNTIME_FUNCTION
*function
)
289 static const char * const reg_names
[16] =
290 { "rax", "rcx", "rdx", "rbx", "rsp", "rbp", "rsi", "rdi",
291 "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15" };
293 union handler_data
*handler_data
;
294 struct UNWIND_INFO
*info
;
295 unsigned int i
, count
;
297 TRACE( "**** func %x-%x\n", function
->BeginAddress
, function
->EndAddress
);
300 if (function
->UnwindData
& 1)
302 RUNTIME_FUNCTION
*next
= (RUNTIME_FUNCTION
*)((char *)base
+ (function
->UnwindData
& ~1));
303 TRACE( "unwind info for function %p-%p chained to function %p-%p\n",
304 (char *)base
+ function
->BeginAddress
, (char *)base
+ function
->EndAddress
,
305 (char *)base
+ next
->BeginAddress
, (char *)base
+ next
->EndAddress
);
309 info
= (struct UNWIND_INFO
*)((char *)base
+ function
->UnwindData
);
311 TRACE( "unwind info at %p flags %x prolog 0x%x bytes function %p-%p\n",
312 info
, info
->flags
, info
->prolog
,
313 (char *)base
+ function
->BeginAddress
, (char *)base
+ function
->EndAddress
);
316 TRACE( " frame register %s offset 0x%x(%%rsp)\n",
317 reg_names
[info
->frame_reg
], info
->frame_offset
* 16 );
319 for (i
= 0; i
< info
->count
; i
++)
321 TRACE( " 0x%x: ", info
->opcodes
[i
].offset
);
322 switch (info
->opcodes
[i
].code
)
324 case UWOP_PUSH_NONVOL
:
325 TRACE( "pushq %%%s\n", reg_names
[info
->opcodes
[i
].info
] );
327 case UWOP_ALLOC_LARGE
:
328 if (info
->opcodes
[i
].info
)
330 count
= *(DWORD
*)&info
->opcodes
[i
+1];
335 count
= *(USHORT
*)&info
->opcodes
[i
+1] * 8;
338 TRACE( "subq $0x%x,%%rsp\n", count
);
340 case UWOP_ALLOC_SMALL
:
341 count
= (info
->opcodes
[i
].info
+ 1) * 8;
342 TRACE( "subq $0x%x,%%rsp\n", count
);
345 TRACE( "leaq 0x%x(%%rsp),%s\n",
346 info
->frame_offset
* 16, reg_names
[info
->frame_reg
] );
348 case UWOP_SAVE_NONVOL
:
349 count
= *(USHORT
*)&info
->opcodes
[i
+1] * 8;
350 TRACE( "movq %%%s,0x%x(%%rsp)\n", reg_names
[info
->opcodes
[i
].info
], count
);
353 case UWOP_SAVE_NONVOL_FAR
:
354 count
= *(DWORD
*)&info
->opcodes
[i
+1];
355 TRACE( "movq %%%s,0x%x(%%rsp)\n", reg_names
[info
->opcodes
[i
].info
], count
);
358 case UWOP_SAVE_XMM128
:
359 count
= *(USHORT
*)&info
->opcodes
[i
+1] * 16;
360 TRACE( "movaps %%xmm%u,0x%x(%%rsp)\n", info
->opcodes
[i
].info
, count
);
363 case UWOP_SAVE_XMM128_FAR
:
364 count
= *(DWORD
*)&info
->opcodes
[i
+1];
365 TRACE( "movaps %%xmm%u,0x%x(%%rsp)\n", info
->opcodes
[i
].info
, count
);
368 case UWOP_PUSH_MACHFRAME
:
369 TRACE( "PUSH_MACHFRAME %u\n", info
->opcodes
[i
].info
);
372 FIXME( "unknown code %u\n", info
->opcodes
[i
].code
);
377 handler_data
= (union handler_data
*)&info
->opcodes
[(info
->count
+ 1) & ~1];
378 if (info
->flags
& UNW_FLAG_CHAININFO
)
380 TRACE( " chained to function %p-%p\n",
381 (char *)base
+ handler_data
->chain
.BeginAddress
,
382 (char *)base
+ handler_data
->chain
.EndAddress
);
383 function
= &handler_data
->chain
;
386 if (info
->flags
& (UNW_FLAG_EHANDLER
| UNW_FLAG_UHANDLER
))
387 TRACE( " handler %p data at %p\n",
388 (char *)base
+ handler_data
->handler
, &handler_data
->handler
+ 1 );
393 static void dump_scope_table( ULONG64 base
, const SCOPE_TABLE
*table
)
397 TRACE( "scope table at %p\n", table
);
398 for (i
= 0; i
< table
->Count
; i
++)
399 TRACE( " %u: %lx-%lx handler %lx target %lx\n", i
,
400 base
+ table
->ScopeRecord
[i
].BeginAddress
,
401 base
+ table
->ScopeRecord
[i
].EndAddress
,
402 base
+ table
->ScopeRecord
[i
].HandlerAddress
,
403 base
+ table
->ScopeRecord
[i
].JumpTarget
);
407 /***********************************************************************
408 * Definitions for Dwarf unwind tables
411 enum dwarf_call_frame_info
413 DW_CFA_advance_loc
= 0x40,
414 DW_CFA_offset
= 0x80,
415 DW_CFA_restore
= 0xc0,
417 DW_CFA_set_loc
= 0x01,
418 DW_CFA_advance_loc1
= 0x02,
419 DW_CFA_advance_loc2
= 0x03,
420 DW_CFA_advance_loc4
= 0x04,
421 DW_CFA_offset_extended
= 0x05,
422 DW_CFA_restore_extended
= 0x06,
423 DW_CFA_undefined
= 0x07,
424 DW_CFA_same_value
= 0x08,
425 DW_CFA_register
= 0x09,
426 DW_CFA_remember_state
= 0x0a,
427 DW_CFA_restore_state
= 0x0b,
428 DW_CFA_def_cfa
= 0x0c,
429 DW_CFA_def_cfa_register
= 0x0d,
430 DW_CFA_def_cfa_offset
= 0x0e,
431 DW_CFA_def_cfa_expression
= 0x0f,
432 DW_CFA_expression
= 0x10,
433 DW_CFA_offset_extended_sf
= 0x11,
434 DW_CFA_def_cfa_sf
= 0x12,
435 DW_CFA_def_cfa_offset_sf
= 0x13,
436 DW_CFA_val_offset
= 0x14,
437 DW_CFA_val_offset_sf
= 0x15,
438 DW_CFA_val_expression
= 0x16,
445 DW_OP_const1u
= 0x08,
446 DW_OP_const1s
= 0x09,
447 DW_OP_const2u
= 0x0a,
448 DW_OP_const2s
= 0x0b,
449 DW_OP_const4u
= 0x0c,
450 DW_OP_const4s
= 0x0d,
451 DW_OP_const8u
= 0x0e,
452 DW_OP_const8s
= 0x0f,
472 DW_OP_plus_uconst
= 0x23,
585 DW_OP_deref_size
= 0x94,
586 DW_OP_xderef_size
= 0x95,
588 DW_OP_push_object_address
= 0x97,
591 DW_OP_call_ref
= 0x9a,
592 DW_OP_form_tls_address
= 0x9b,
593 DW_OP_call_frame_cfa
= 0x9c,
594 DW_OP_bit_piece
= 0x9d,
595 DW_OP_lo_user
= 0xe0,
596 DW_OP_hi_user
= 0xff,
597 DW_OP_GNU_push_tls_address
= 0xe0,
598 DW_OP_GNU_uninit
= 0xf0,
599 DW_OP_GNU_encoded_addr
= 0xf1,
602 #define DW_EH_PE_native 0x00
603 #define DW_EH_PE_leb128 0x01
604 #define DW_EH_PE_data2 0x02
605 #define DW_EH_PE_data4 0x03
606 #define DW_EH_PE_data8 0x04
607 #define DW_EH_PE_signed 0x08
608 #define DW_EH_PE_abs 0x00
609 #define DW_EH_PE_pcrel 0x10
610 #define DW_EH_PE_textrel 0x20
611 #define DW_EH_PE_datarel 0x30
612 #define DW_EH_PE_funcrel 0x40
613 #define DW_EH_PE_aligned 0x50
614 #define DW_EH_PE_indirect 0x80
615 #define DW_EH_PE_omit 0xff
617 struct dwarf_eh_bases
628 unsigned char version
;
629 unsigned char augmentation
[1];
635 unsigned int cie_offset
;
638 extern const struct dwarf_fde
*_Unwind_Find_FDE (void *, struct dwarf_eh_bases
*);
640 static unsigned char dwarf_get_u1( const unsigned char **p
)
645 static unsigned short dwarf_get_u2( const unsigned char **p
)
647 unsigned int ret
= (*p
)[0] | ((*p
)[1] << 8);
652 static unsigned int dwarf_get_u4( const unsigned char **p
)
654 unsigned int ret
= (*p
)[0] | ((*p
)[1] << 8) | ((*p
)[2] << 16) | ((*p
)[3] << 24);
659 static ULONG64
dwarf_get_u8( const unsigned char **p
)
661 ULONG64 low
= dwarf_get_u4( p
);
662 ULONG64 high
= dwarf_get_u4( p
);
663 return low
| (high
<< 32);
666 static ULONG_PTR
dwarf_get_uleb128( const unsigned char **p
)
669 unsigned int shift
= 0;
675 ret
|= (ULONG_PTR
)(byte
& 0x7f) << shift
;
678 } while (byte
& 0x80);
682 static LONG_PTR
dwarf_get_sleb128( const unsigned char **p
)
685 unsigned int shift
= 0;
691 ret
|= (ULONG_PTR
)(byte
& 0x7f) << shift
;
694 } while (byte
& 0x80);
696 if ((shift
< 8 * sizeof(ret
)) && (byte
& 0x40)) ret
|= -((ULONG_PTR
)1 << shift
);
700 static ULONG_PTR
dwarf_get_ptr( const unsigned char **p
, unsigned char encoding
)
704 if (encoding
== DW_EH_PE_omit
) return 0;
706 switch (encoding
& 0xf0)
712 base
= (ULONG_PTR
)*p
;
715 FIXME( "unsupported encoding %02x\n", encoding
);
719 switch (encoding
& 0x0f)
721 case DW_EH_PE_native
:
722 return base
+ dwarf_get_u8( p
);
723 case DW_EH_PE_leb128
:
724 return base
+ dwarf_get_uleb128( p
);
726 return base
+ dwarf_get_u2( p
);
728 return base
+ dwarf_get_u4( p
);
730 return base
+ dwarf_get_u8( p
);
731 case DW_EH_PE_signed
|DW_EH_PE_leb128
:
732 return base
+ dwarf_get_sleb128( p
);
733 case DW_EH_PE_signed
|DW_EH_PE_data2
:
734 return base
+ (signed short)dwarf_get_u2( p
);
735 case DW_EH_PE_signed
|DW_EH_PE_data4
:
736 return base
+ (signed int)dwarf_get_u4( p
);
737 case DW_EH_PE_signed
|DW_EH_PE_data8
:
738 return base
+ (LONG64
)dwarf_get_u8( p
);
740 FIXME( "unsupported encoding %02x\n", encoding
);
747 RULE_UNSET
, /* not set at all */
748 RULE_UNDEFINED
, /* undefined value */
749 RULE_SAME
, /* same value as previous frame */
750 RULE_CFA_OFFSET
, /* stored at cfa offset */
751 RULE_OTHER_REG
, /* stored in other register */
752 RULE_EXPRESSION
, /* address specified by expression */
753 RULE_VAL_EXPRESSION
/* value specified by expression */
756 #define NB_FRAME_REGS 41
757 #define MAX_SAVED_STATES 16
761 ULONG_PTR cfa_offset
;
762 unsigned char cfa_reg
;
763 enum reg_rule cfa_rule
;
764 enum reg_rule rules
[NB_FRAME_REGS
];
765 ULONG64 regs
[NB_FRAME_REGS
];
771 ULONG_PTR code_align
;
773 unsigned char retaddr_reg
;
774 unsigned char fde_encoding
;
775 unsigned char signal_frame
;
776 unsigned char state_sp
;
777 struct frame_state state
;
778 struct frame_state
*state_stack
;
781 static const char *dwarf_reg_names
[NB_FRAME_REGS
] =
783 /* 0-7 */ "%rax", "%rdx", "%rcx", "%rbx", "%rsi", "%rdi", "%rbp", "%rsp",
784 /* 8-16 */ "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15", "%rip",
785 /* 17-24 */ "%xmm0", "%xmm1", "%xmm2", "%xmm3", "%xmm4", "%xmm5", "%xmm6", "%xmm7",
786 /* 25-32 */ "%xmm8", "%xmm9", "%xmm10", "%xmm11", "%xmm12", "%xmm13", "%xmm14", "%xmm15",
787 /* 33-40 */ "%st0", "%st1", "%st2", "%st3", "%st4", "%st5", "%st6", "%st7"
790 static int valid_reg( ULONG_PTR reg
)
792 if (reg
>= NB_FRAME_REGS
) FIXME( "unsupported reg %lx\n", reg
);
793 return (reg
< NB_FRAME_REGS
);
796 static void execute_cfa_instructions( const unsigned char *ptr
, const unsigned char *end
,
797 ULONG_PTR last_ip
, struct frame_info
*info
)
799 while (ptr
< end
&& info
->ip
< last_ip
+ info
->signal_frame
)
801 enum dwarf_call_frame_info op
= *ptr
++;
807 case DW_CFA_advance_loc
:
809 ULONG_PTR offset
= (op
& 0x3f) * info
->code_align
;
810 TRACE( "%lx: DW_CFA_advance_loc %lu\n", info
->ip
, offset
);
816 ULONG_PTR reg
= op
& 0x3f;
817 LONG_PTR offset
= dwarf_get_uleb128( &ptr
) * info
->data_align
;
818 if (!valid_reg( reg
)) break;
819 TRACE( "%lx: DW_CFA_offset %s, %ld\n", info
->ip
, dwarf_reg_names
[reg
], offset
);
820 info
->state
.regs
[reg
] = offset
;
821 info
->state
.rules
[reg
] = RULE_CFA_OFFSET
;
826 ULONG_PTR reg
= op
& 0x3f;
827 if (!valid_reg( reg
)) break;
828 TRACE( "%lx: DW_CFA_restore %s\n", info
->ip
, dwarf_reg_names
[reg
] );
829 info
->state
.rules
[reg
] = RULE_UNSET
;
840 ULONG_PTR loc
= dwarf_get_ptr( &ptr
, info
->fde_encoding
);
841 TRACE( "%lx: DW_CFA_set_loc %lx\n", info
->ip
, loc
);
845 case DW_CFA_advance_loc1
:
847 ULONG_PTR offset
= *ptr
++ * info
->code_align
;
848 TRACE( "%lx: DW_CFA_advance_loc1 %lu\n", info
->ip
, offset
);
852 case DW_CFA_advance_loc2
:
854 ULONG_PTR offset
= dwarf_get_u2( &ptr
) * info
->code_align
;
855 TRACE( "%lx: DW_CFA_advance_loc2 %lu\n", info
->ip
, offset
);
859 case DW_CFA_advance_loc4
:
861 ULONG_PTR offset
= dwarf_get_u4( &ptr
) * info
->code_align
;
862 TRACE( "%lx: DW_CFA_advance_loc4 %lu\n", info
->ip
, offset
);
866 case DW_CFA_offset_extended
:
867 case DW_CFA_offset_extended_sf
:
869 ULONG_PTR reg
= dwarf_get_uleb128( &ptr
);
870 LONG_PTR offset
= (op
== DW_CFA_offset_extended
) ? dwarf_get_uleb128( &ptr
) * info
->data_align
871 : dwarf_get_sleb128( &ptr
) * info
->data_align
;
872 if (!valid_reg( reg
)) break;
873 TRACE( "%lx: DW_CFA_offset_extended %s, %ld\n", info
->ip
, dwarf_reg_names
[reg
], offset
);
874 info
->state
.regs
[reg
] = offset
;
875 info
->state
.rules
[reg
] = RULE_CFA_OFFSET
;
878 case DW_CFA_restore_extended
:
880 ULONG_PTR reg
= dwarf_get_uleb128( &ptr
);
881 if (!valid_reg( reg
)) break;
882 TRACE( "%lx: DW_CFA_restore_extended %s\n", info
->ip
, dwarf_reg_names
[reg
] );
883 info
->state
.rules
[reg
] = RULE_UNSET
;
886 case DW_CFA_undefined
:
888 ULONG_PTR reg
= dwarf_get_uleb128( &ptr
);
889 if (!valid_reg( reg
)) break;
890 TRACE( "%lx: DW_CFA_undefined %s\n", info
->ip
, dwarf_reg_names
[reg
] );
891 info
->state
.rules
[reg
] = RULE_UNDEFINED
;
894 case DW_CFA_same_value
:
896 ULONG_PTR reg
= dwarf_get_uleb128( &ptr
);
897 if (!valid_reg( reg
)) break;
898 TRACE( "%lx: DW_CFA_same_value %s\n", info
->ip
, dwarf_reg_names
[reg
] );
899 info
->state
.regs
[reg
] = reg
;
900 info
->state
.rules
[reg
] = RULE_SAME
;
903 case DW_CFA_register
:
905 ULONG_PTR reg
= dwarf_get_uleb128( &ptr
);
906 ULONG_PTR reg2
= dwarf_get_uleb128( &ptr
);
907 if (!valid_reg( reg
) || !valid_reg( reg2
)) break;
908 TRACE( "%lx: DW_CFA_register %s == %s\n", info
->ip
, dwarf_reg_names
[reg
], dwarf_reg_names
[reg2
] );
909 info
->state
.regs
[reg
] = reg2
;
910 info
->state
.rules
[reg
] = RULE_OTHER_REG
;
913 case DW_CFA_remember_state
:
914 TRACE( "%lx: DW_CFA_remember_state\n", info
->ip
);
915 if (info
->state_sp
>= MAX_SAVED_STATES
)
916 FIXME( "%lx: DW_CFA_remember_state too many nested saves\n", info
->ip
);
918 info
->state_stack
[info
->state_sp
++] = info
->state
;
920 case DW_CFA_restore_state
:
921 TRACE( "%lx: DW_CFA_restore_state\n", info
->ip
);
923 FIXME( "%lx: DW_CFA_restore_state without corresponding save\n", info
->ip
);
925 info
->state
= info
->state_stack
[--info
->state_sp
];
928 case DW_CFA_def_cfa_sf
:
930 ULONG_PTR reg
= dwarf_get_uleb128( &ptr
);
931 ULONG_PTR offset
= (op
== DW_CFA_def_cfa
) ? dwarf_get_uleb128( &ptr
)
932 : dwarf_get_sleb128( &ptr
) * info
->data_align
;
933 if (!valid_reg( reg
)) break;
934 TRACE( "%lx: DW_CFA_def_cfa %s, %lu\n", info
->ip
, dwarf_reg_names
[reg
], offset
);
935 info
->state
.cfa_reg
= reg
;
936 info
->state
.cfa_offset
= offset
;
937 info
->state
.cfa_rule
= RULE_CFA_OFFSET
;
940 case DW_CFA_def_cfa_register
:
942 ULONG_PTR reg
= dwarf_get_uleb128( &ptr
);
943 if (!valid_reg( reg
)) break;
944 TRACE( "%lx: DW_CFA_def_cfa_register %s\n", info
->ip
, dwarf_reg_names
[reg
] );
945 info
->state
.cfa_reg
= reg
;
946 info
->state
.cfa_rule
= RULE_CFA_OFFSET
;
949 case DW_CFA_def_cfa_offset
:
950 case DW_CFA_def_cfa_offset_sf
:
952 ULONG_PTR offset
= (op
== DW_CFA_def_cfa_offset
) ? dwarf_get_uleb128( &ptr
)
953 : dwarf_get_sleb128( &ptr
) * info
->data_align
;
954 TRACE( "%lx: DW_CFA_def_cfa_offset %lu\n", info
->ip
, offset
);
955 info
->state
.cfa_offset
= offset
;
956 info
->state
.cfa_rule
= RULE_CFA_OFFSET
;
959 case DW_CFA_def_cfa_expression
:
961 ULONG_PTR expr
= (ULONG_PTR
)ptr
;
962 ULONG_PTR len
= dwarf_get_uleb128( &ptr
);
963 TRACE( "%lx: DW_CFA_def_cfa_expression %lx-%lx\n", info
->ip
, expr
, expr
+len
);
964 info
->state
.cfa_offset
= expr
;
965 info
->state
.cfa_rule
= RULE_VAL_EXPRESSION
;
969 case DW_CFA_expression
:
970 case DW_CFA_val_expression
:
972 ULONG_PTR reg
= dwarf_get_uleb128( &ptr
);
973 ULONG_PTR expr
= (ULONG_PTR
)ptr
;
974 ULONG_PTR len
= dwarf_get_uleb128( &ptr
);
975 if (!valid_reg( reg
)) break;
976 TRACE( "%lx: DW_CFA_%sexpression %s %lx-%lx\n",
977 info
->ip
, (op
== DW_CFA_expression
) ? "" : "val_", dwarf_reg_names
[reg
], expr
, expr
+len
);
978 info
->state
.regs
[reg
] = expr
;
979 info
->state
.rules
[reg
] = (op
== DW_CFA_expression
) ? RULE_EXPRESSION
: RULE_VAL_EXPRESSION
;
984 FIXME( "%lx: unknown CFA opcode %02x\n", info
->ip
, op
);
990 /* retrieve a context register from its dwarf number */
991 static void *get_context_reg( CONTEXT
*context
, ULONG_PTR dw_reg
)
995 case 0: return &context
->Rax
;
996 case 1: return &context
->Rdx
;
997 case 2: return &context
->Rcx
;
998 case 3: return &context
->Rbx
;
999 case 4: return &context
->Rsi
;
1000 case 5: return &context
->Rdi
;
1001 case 6: return &context
->Rbp
;
1002 case 7: return &context
->Rsp
;
1003 case 8: return &context
->R8
;
1004 case 9: return &context
->R9
;
1005 case 10: return &context
->R10
;
1006 case 11: return &context
->R11
;
1007 case 12: return &context
->R12
;
1008 case 13: return &context
->R13
;
1009 case 14: return &context
->R14
;
1010 case 15: return &context
->R15
;
1011 case 16: return &context
->Rip
;
1012 case 17: return &context
->u
.s
.Xmm0
;
1013 case 18: return &context
->u
.s
.Xmm1
;
1014 case 19: return &context
->u
.s
.Xmm2
;
1015 case 20: return &context
->u
.s
.Xmm3
;
1016 case 21: return &context
->u
.s
.Xmm4
;
1017 case 22: return &context
->u
.s
.Xmm5
;
1018 case 23: return &context
->u
.s
.Xmm6
;
1019 case 24: return &context
->u
.s
.Xmm7
;
1020 case 25: return &context
->u
.s
.Xmm8
;
1021 case 26: return &context
->u
.s
.Xmm9
;
1022 case 27: return &context
->u
.s
.Xmm10
;
1023 case 28: return &context
->u
.s
.Xmm11
;
1024 case 29: return &context
->u
.s
.Xmm12
;
1025 case 30: return &context
->u
.s
.Xmm13
;
1026 case 31: return &context
->u
.s
.Xmm14
;
1027 case 32: return &context
->u
.s
.Xmm15
;
1028 case 33: return &context
->u
.s
.Legacy
[0];
1029 case 34: return &context
->u
.s
.Legacy
[1];
1030 case 35: return &context
->u
.s
.Legacy
[2];
1031 case 36: return &context
->u
.s
.Legacy
[3];
1032 case 37: return &context
->u
.s
.Legacy
[4];
1033 case 38: return &context
->u
.s
.Legacy
[5];
1034 case 39: return &context
->u
.s
.Legacy
[6];
1035 case 40: return &context
->u
.s
.Legacy
[7];
1036 default: return NULL
;
1040 /* set a context register from its dwarf number */
1041 static void set_context_reg( CONTEXT
*context
, ULONG_PTR dw_reg
, void *val
)
1045 case 0: context
->Rax
= *(ULONG64
*)val
; break;
1046 case 1: context
->Rdx
= *(ULONG64
*)val
; break;
1047 case 2: context
->Rcx
= *(ULONG64
*)val
; break;
1048 case 3: context
->Rbx
= *(ULONG64
*)val
; break;
1049 case 4: context
->Rsi
= *(ULONG64
*)val
; break;
1050 case 5: context
->Rdi
= *(ULONG64
*)val
; break;
1051 case 6: context
->Rbp
= *(ULONG64
*)val
; break;
1052 case 7: context
->Rsp
= *(ULONG64
*)val
; break;
1053 case 8: context
->R8
= *(ULONG64
*)val
; break;
1054 case 9: context
->R9
= *(ULONG64
*)val
; break;
1055 case 10: context
->R10
= *(ULONG64
*)val
; break;
1056 case 11: context
->R11
= *(ULONG64
*)val
; break;
1057 case 12: context
->R12
= *(ULONG64
*)val
; break;
1058 case 13: context
->R13
= *(ULONG64
*)val
; break;
1059 case 14: context
->R14
= *(ULONG64
*)val
; break;
1060 case 15: context
->R15
= *(ULONG64
*)val
; break;
1061 case 16: context
->Rip
= *(ULONG64
*)val
; break;
1062 case 17: context
->u
.s
.Xmm0
= *(M128A
*)val
; break;
1063 case 18: context
->u
.s
.Xmm1
= *(M128A
*)val
; break;
1064 case 19: context
->u
.s
.Xmm2
= *(M128A
*)val
; break;
1065 case 20: context
->u
.s
.Xmm3
= *(M128A
*)val
; break;
1066 case 21: context
->u
.s
.Xmm4
= *(M128A
*)val
; break;
1067 case 22: context
->u
.s
.Xmm5
= *(M128A
*)val
; break;
1068 case 23: context
->u
.s
.Xmm6
= *(M128A
*)val
; break;
1069 case 24: context
->u
.s
.Xmm7
= *(M128A
*)val
; break;
1070 case 25: context
->u
.s
.Xmm8
= *(M128A
*)val
; break;
1071 case 26: context
->u
.s
.Xmm9
= *(M128A
*)val
; break;
1072 case 27: context
->u
.s
.Xmm10
= *(M128A
*)val
; break;
1073 case 28: context
->u
.s
.Xmm11
= *(M128A
*)val
; break;
1074 case 29: context
->u
.s
.Xmm12
= *(M128A
*)val
; break;
1075 case 30: context
->u
.s
.Xmm13
= *(M128A
*)val
; break;
1076 case 31: context
->u
.s
.Xmm14
= *(M128A
*)val
; break;
1077 case 32: context
->u
.s
.Xmm15
= *(M128A
*)val
; break;
1078 case 33: context
->u
.s
.Legacy
[0] = *(M128A
*)val
; break;
1079 case 34: context
->u
.s
.Legacy
[1] = *(M128A
*)val
; break;
1080 case 35: context
->u
.s
.Legacy
[2] = *(M128A
*)val
; break;
1081 case 36: context
->u
.s
.Legacy
[3] = *(M128A
*)val
; break;
1082 case 37: context
->u
.s
.Legacy
[4] = *(M128A
*)val
; break;
1083 case 38: context
->u
.s
.Legacy
[5] = *(M128A
*)val
; break;
1084 case 39: context
->u
.s
.Legacy
[6] = *(M128A
*)val
; break;
1085 case 40: context
->u
.s
.Legacy
[7] = *(M128A
*)val
; break;
1089 static ULONG_PTR
eval_expression( const unsigned char *p
, CONTEXT
*context
)
1091 ULONG_PTR reg
, tmp
, stack
[64];
1093 ULONG_PTR len
= dwarf_get_uleb128(&p
);
1094 const unsigned char *end
= p
+ len
;
1098 unsigned char opcode
= dwarf_get_u1(&p
);
1100 if (opcode
>= DW_OP_lit0
&& opcode
<= DW_OP_lit31
)
1101 stack
[++sp
] = opcode
- DW_OP_lit0
;
1102 else if (opcode
>= DW_OP_reg0
&& opcode
<= DW_OP_reg31
)
1103 stack
[++sp
] = *(ULONG_PTR
*)get_context_reg( context
, opcode
- DW_OP_reg0
);
1104 else if (opcode
>= DW_OP_breg0
&& opcode
<= DW_OP_breg31
)
1105 stack
[++sp
] = *(ULONG_PTR
*)get_context_reg( context
, opcode
- DW_OP_breg0
) + dwarf_get_sleb128(&p
);
1106 else switch (opcode
)
1108 case DW_OP_nop
: break;
1109 case DW_OP_addr
: stack
[++sp
] = dwarf_get_u8(&p
); break;
1110 case DW_OP_const1u
: stack
[++sp
] = dwarf_get_u1(&p
); break;
1111 case DW_OP_const1s
: stack
[++sp
] = (signed char)dwarf_get_u1(&p
); break;
1112 case DW_OP_const2u
: stack
[++sp
] = dwarf_get_u2(&p
); break;
1113 case DW_OP_const2s
: stack
[++sp
] = (short)dwarf_get_u2(&p
); break;
1114 case DW_OP_const4u
: stack
[++sp
] = dwarf_get_u4(&p
); break;
1115 case DW_OP_const4s
: stack
[++sp
] = (signed int)dwarf_get_u4(&p
); break;
1116 case DW_OP_const8u
: stack
[++sp
] = dwarf_get_u8(&p
); break;
1117 case DW_OP_const8s
: stack
[++sp
] = (LONG_PTR
)dwarf_get_u8(&p
); break;
1118 case DW_OP_constu
: stack
[++sp
] = dwarf_get_uleb128(&p
); break;
1119 case DW_OP_consts
: stack
[++sp
] = dwarf_get_sleb128(&p
); break;
1120 case DW_OP_deref
: stack
[sp
] = *(ULONG_PTR
*)stack
[sp
]; break;
1121 case DW_OP_dup
: stack
[sp
+ 1] = stack
[sp
]; sp
++; break;
1122 case DW_OP_drop
: sp
--; break;
1123 case DW_OP_over
: stack
[sp
+ 1] = stack
[sp
- 1]; sp
++; break;
1124 case DW_OP_pick
: stack
[sp
+ 1] = stack
[sp
- dwarf_get_u1(&p
)]; sp
++; break;
1125 case DW_OP_swap
: tmp
= stack
[sp
]; stack
[sp
] = stack
[sp
-1]; stack
[sp
-1] = tmp
; break;
1126 case DW_OP_rot
: tmp
= stack
[sp
]; stack
[sp
] = stack
[sp
-1]; stack
[sp
-1] = stack
[sp
-2]; stack
[sp
-2] = tmp
; break;
1127 case DW_OP_abs
: stack
[sp
] = labs(stack
[sp
]); break;
1128 case DW_OP_neg
: stack
[sp
] = -stack
[sp
]; break;
1129 case DW_OP_not
: stack
[sp
] = ~stack
[sp
]; break;
1130 case DW_OP_and
: stack
[sp
-1] &= stack
[sp
]; sp
--; break;
1131 case DW_OP_or
: stack
[sp
-1] |= stack
[sp
]; sp
--; break;
1132 case DW_OP_minus
: stack
[sp
-1] -= stack
[sp
]; sp
--; break;
1133 case DW_OP_mul
: stack
[sp
-1] *= stack
[sp
]; sp
--; break;
1134 case DW_OP_plus
: stack
[sp
-1] += stack
[sp
]; sp
--; break;
1135 case DW_OP_xor
: stack
[sp
-1] ^= stack
[sp
]; sp
--; break;
1136 case DW_OP_shl
: stack
[sp
-1] <<= stack
[sp
]; sp
--; break;
1137 case DW_OP_shr
: stack
[sp
-1] >>= stack
[sp
]; sp
--; break;
1138 case DW_OP_plus_uconst
: stack
[sp
] += dwarf_get_uleb128(&p
); break;
1139 case DW_OP_shra
: stack
[sp
-1] = (LONG_PTR
)stack
[sp
-1] / (1 << stack
[sp
]); sp
--; break;
1140 case DW_OP_div
: stack
[sp
-1] = (LONG_PTR
)stack
[sp
-1] / (LONG_PTR
)stack
[sp
]; sp
--; break;
1141 case DW_OP_mod
: stack
[sp
-1] = (LONG_PTR
)stack
[sp
-1] % (LONG_PTR
)stack
[sp
]; sp
--; break;
1142 case DW_OP_ge
: stack
[sp
-1] = ((LONG_PTR
)stack
[sp
-1] >= (LONG_PTR
)stack
[sp
]); sp
--; break;
1143 case DW_OP_gt
: stack
[sp
-1] = ((LONG_PTR
)stack
[sp
-1] > (LONG_PTR
)stack
[sp
]); sp
--; break;
1144 case DW_OP_le
: stack
[sp
-1] = ((LONG_PTR
)stack
[sp
-1] <= (LONG_PTR
)stack
[sp
]); sp
--; break;
1145 case DW_OP_lt
: stack
[sp
-1] = ((LONG_PTR
)stack
[sp
-1] < (LONG_PTR
)stack
[sp
]); sp
--; break;
1146 case DW_OP_eq
: stack
[sp
-1] = (stack
[sp
-1] == stack
[sp
]); sp
--; break;
1147 case DW_OP_ne
: stack
[sp
-1] = (stack
[sp
-1] != stack
[sp
]); sp
--; break;
1148 case DW_OP_skip
: tmp
= (short)dwarf_get_u2(&p
); p
+= tmp
; break;
1149 case DW_OP_bra
: tmp
= (short)dwarf_get_u2(&p
); if (!stack
[sp
--]) p
+= tmp
; break;
1150 case DW_OP_GNU_encoded_addr
: tmp
= *p
++; stack
[++sp
] = dwarf_get_ptr( &p
, tmp
); break;
1151 case DW_OP_regx
: stack
[++sp
] = *(ULONG_PTR
*)get_context_reg( context
, dwarf_get_uleb128(&p
) ); break;
1153 reg
= dwarf_get_uleb128(&p
);
1154 tmp
= dwarf_get_sleb128(&p
);
1155 stack
[++sp
] = *(ULONG_PTR
*)get_context_reg( context
, reg
) + tmp
;
1157 case DW_OP_deref_size
:
1160 case 1: stack
[sp
] = *(unsigned char *)stack
[sp
]; break;
1161 case 2: stack
[sp
] = *(unsigned short *)stack
[sp
]; break;
1162 case 4: stack
[sp
] = *(unsigned int *)stack
[sp
]; break;
1163 case 8: stack
[sp
] = *(ULONG_PTR
*)stack
[sp
]; break;
1167 FIXME( "unhandled opcode %02x\n", opcode
);
1173 /* apply the computed frame info to the actual context */
1174 static void apply_frame_state( CONTEXT
*context
, struct frame_state
*state
)
1177 ULONG_PTR cfa
, value
;
1178 CONTEXT new_context
= *context
;
1180 switch (state
->cfa_rule
)
1182 case RULE_EXPRESSION
:
1183 cfa
= *(ULONG_PTR
*)eval_expression( (const unsigned char *)state
->cfa_offset
, context
);
1185 case RULE_VAL_EXPRESSION
:
1186 cfa
= eval_expression( (const unsigned char *)state
->cfa_offset
, context
);
1189 cfa
= *(ULONG_PTR
*)get_context_reg( context
, state
->cfa_reg
) + state
->cfa_offset
;
1194 for (i
= 0; i
< NB_FRAME_REGS
; i
++)
1196 switch (state
->rules
[i
])
1199 case RULE_UNDEFINED
:
1202 case RULE_CFA_OFFSET
:
1203 set_context_reg( &new_context
, i
, (char *)cfa
+ state
->regs
[i
] );
1205 case RULE_OTHER_REG
:
1206 set_context_reg( &new_context
, i
, get_context_reg( context
, state
->regs
[i
] ));
1208 case RULE_EXPRESSION
:
1209 value
= eval_expression( (const unsigned char *)state
->regs
[i
], context
);
1210 set_context_reg( &new_context
, i
, (void *)value
);
1212 case RULE_VAL_EXPRESSION
:
1213 value
= eval_expression( (const unsigned char *)state
->regs
[i
], context
);
1214 set_context_reg( &new_context
, i
, &value
);
1218 new_context
.Rsp
= cfa
;
1219 *context
= new_context
;
1223 /***********************************************************************
1224 * dwarf_virtual_unwind
1226 * Equivalent of RtlVirtualUnwind for builtin modules.
1228 static NTSTATUS
dwarf_virtual_unwind( ULONG64 ip
, ULONG64
*frame
,CONTEXT
*context
,
1229 const struct dwarf_fde
*fde
, const struct dwarf_eh_bases
*bases
,
1230 PEXCEPTION_ROUTINE
*handler
, void **handler_data
)
1232 const struct dwarf_cie
*cie
;
1233 const unsigned char *ptr
, *augmentation
, *end
;
1234 ULONG_PTR len
, code_end
;
1235 struct frame_info info
;
1236 struct frame_state state_stack
[MAX_SAVED_STATES
];
1237 int aug_z_format
= 0;
1238 unsigned char lsda_encoding
= DW_EH_PE_omit
;
1240 memset( &info
, 0, sizeof(info
) );
1241 info
.state_stack
= state_stack
;
1242 info
.ip
= (ULONG_PTR
)bases
->func
;
1245 cie
= (const struct dwarf_cie
*)((const char *)&fde
->cie_offset
- fde
->cie_offset
);
1247 /* parse the CIE first */
1249 if (cie
->version
!= 1)
1251 FIXME( "unknown CIE version %u at %p\n", cie
->version
, cie
);
1252 return STATUS_INVALID_DISPOSITION
;
1254 ptr
= cie
->augmentation
+ strlen((const char *)cie
->augmentation
) + 1;
1256 info
.code_align
= dwarf_get_uleb128( &ptr
);
1257 info
.data_align
= dwarf_get_sleb128( &ptr
);
1258 info
.retaddr_reg
= *ptr
++;
1259 info
.state
.cfa_rule
= RULE_CFA_OFFSET
;
1261 TRACE( "function %lx base %p cie %p len %x id %x version %x aug '%s' code_align %lu data_align %ld retaddr %s\n",
1262 ip
, bases
->func
, cie
, cie
->length
, cie
->id
, cie
->version
, cie
->augmentation
,
1263 info
.code_align
, info
.data_align
, dwarf_reg_names
[info
.retaddr_reg
] );
1266 for (augmentation
= cie
->augmentation
; *augmentation
; augmentation
++)
1268 switch (*augmentation
)
1271 len
= dwarf_get_uleb128( &ptr
);
1276 lsda_encoding
= *ptr
++;
1280 unsigned char encoding
= *ptr
++;
1281 *handler
= (void *)dwarf_get_ptr( &ptr
, encoding
);
1285 info
.fde_encoding
= *ptr
++;
1288 info
.signal_frame
= 1;
1291 FIXME( "unknown augmentation '%c'\n", *augmentation
);
1292 if (!end
) return STATUS_INVALID_DISPOSITION
; /* cannot continue */
1297 end
= (const unsigned char *)(&cie
->length
+ 1) + cie
->length
;
1298 execute_cfa_instructions( ptr
, end
, ip
, &info
);
1300 ptr
= (const unsigned char *)(fde
+ 1);
1301 info
.ip
= dwarf_get_ptr( &ptr
, info
.fde_encoding
); /* fde code start */
1302 code_end
= info
.ip
+ dwarf_get_ptr( &ptr
, info
.fde_encoding
& 0x0f ); /* fde code length */
1304 if (aug_z_format
) /* get length of augmentation data */
1306 len
= dwarf_get_uleb128( &ptr
);
1311 *handler_data
= (void *)dwarf_get_ptr( &ptr
, lsda_encoding
);
1314 end
= (const unsigned char *)(&fde
->length
+ 1) + fde
->length
;
1315 TRACE( "fde %p len %x personality %p lsda %p code %lx-%lx\n",
1316 fde
, fde
->length
, *handler
, *handler_data
, info
.ip
, code_end
);
1317 execute_cfa_instructions( ptr
, end
, ip
, &info
);
1318 apply_frame_state( context
, &info
.state
);
1319 *frame
= context
->Rsp
;
1321 TRACE( "next function rip=%016lx\n", context
->Rip
);
1322 TRACE( " rax=%016lx rbx=%016lx rcx=%016lx rdx=%016lx\n",
1323 context
->Rax
, context
->Rbx
, context
->Rcx
, context
->Rdx
);
1324 TRACE( " rsi=%016lx rdi=%016lx rbp=%016lx rsp=%016lx\n",
1325 context
->Rsi
, context
->Rdi
, context
->Rbp
, context
->Rsp
);
1326 TRACE( " r8=%016lx r9=%016lx r10=%016lx r11=%016lx\n",
1327 context
->R8
, context
->R9
, context
->R10
, context
->R11
);
1328 TRACE( " r12=%016lx r13=%016lx r14=%016lx r15=%016lx\n",
1329 context
->R12
, context
->R13
, context
->R14
, context
->R15
);
1331 return STATUS_SUCCESS
;
1335 /***********************************************************************
1338 static inline int dispatch_signal(unsigned int sig
)
1340 if (handlers
[sig
] == NULL
) return 0;
1341 return handlers
[sig
](sig
);
1344 /***********************************************************************
1347 * Get the base of the signal stack for the current thread.
1349 static inline void *get_signal_stack(void)
1351 return (char *)NtCurrentTeb() + teb_size
;
1354 /***********************************************************************
1355 * is_inside_signal_stack
1357 * Check if pointer is inside the signal stack.
1359 static inline int is_inside_signal_stack( void *ptr
)
1361 return ((char *)ptr
>= (char *)get_signal_stack() &&
1362 (char *)ptr
< (char *)get_signal_stack() + signal_stack_size
);
1365 /***********************************************************************
1368 * Set the register values from a sigcontext.
1370 static void save_context( CONTEXT
*context
, const ucontext_t
*sigcontext
)
1372 context
->ContextFlags
= CONTEXT_CONTROL
| CONTEXT_INTEGER
| CONTEXT_SEGMENTS
;
1373 context
->Rax
= RAX_sig(sigcontext
);
1374 context
->Rcx
= RCX_sig(sigcontext
);
1375 context
->Rdx
= RDX_sig(sigcontext
);
1376 context
->Rbx
= RBX_sig(sigcontext
);
1377 context
->Rsp
= RSP_sig(sigcontext
);
1378 context
->Rbp
= RBP_sig(sigcontext
);
1379 context
->Rsi
= RSI_sig(sigcontext
);
1380 context
->Rdi
= RDI_sig(sigcontext
);
1381 context
->R8
= R8_sig(sigcontext
);
1382 context
->R9
= R9_sig(sigcontext
);
1383 context
->R10
= R10_sig(sigcontext
);
1384 context
->R11
= R11_sig(sigcontext
);
1385 context
->R12
= R12_sig(sigcontext
);
1386 context
->R13
= R13_sig(sigcontext
);
1387 context
->R14
= R14_sig(sigcontext
);
1388 context
->R15
= R15_sig(sigcontext
);
1389 context
->Rip
= RIP_sig(sigcontext
);
1390 context
->SegCs
= CS_sig(sigcontext
);
1391 context
->SegFs
= FS_sig(sigcontext
);
1392 context
->SegGs
= GS_sig(sigcontext
);
1393 context
->EFlags
= EFL_sig(sigcontext
);
1395 context
->SegDs
= DS_sig(sigcontext
);
1397 __asm__("movw %%ds,%0" : "=m" (context
->SegDs
));
1400 context
->SegEs
= ES_sig(sigcontext
);
1402 __asm__("movw %%es,%0" : "=m" (context
->SegEs
));
1405 context
->SegSs
= SS_sig(sigcontext
);
1407 __asm__("movw %%ss,%0" : "=m" (context
->SegSs
));
1409 if (FPU_sig(sigcontext
))
1411 context
->ContextFlags
|= CONTEXT_FLOATING_POINT
;
1412 context
->u
.FltSave
= *FPU_sig(sigcontext
);
1413 context
->MxCsr
= context
->u
.FltSave
.MxCsr
;
1418 /***********************************************************************
1421 * Build a sigcontext from the register values.
1423 static void restore_context( const CONTEXT
*context
, ucontext_t
*sigcontext
)
1425 RAX_sig(sigcontext
) = context
->Rax
;
1426 RCX_sig(sigcontext
) = context
->Rcx
;
1427 RDX_sig(sigcontext
) = context
->Rdx
;
1428 RBX_sig(sigcontext
) = context
->Rbx
;
1429 RSP_sig(sigcontext
) = context
->Rsp
;
1430 RBP_sig(sigcontext
) = context
->Rbp
;
1431 RSI_sig(sigcontext
) = context
->Rsi
;
1432 RDI_sig(sigcontext
) = context
->Rdi
;
1433 R8_sig(sigcontext
) = context
->R8
;
1434 R9_sig(sigcontext
) = context
->R9
;
1435 R10_sig(sigcontext
) = context
->R10
;
1436 R11_sig(sigcontext
) = context
->R11
;
1437 R12_sig(sigcontext
) = context
->R12
;
1438 R13_sig(sigcontext
) = context
->R13
;
1439 R14_sig(sigcontext
) = context
->R14
;
1440 R15_sig(sigcontext
) = context
->R15
;
1441 RIP_sig(sigcontext
) = context
->Rip
;
1442 CS_sig(sigcontext
) = context
->SegCs
;
1443 FS_sig(sigcontext
) = context
->SegFs
;
1444 GS_sig(sigcontext
) = context
->SegGs
;
1445 EFL_sig(sigcontext
) = context
->EFlags
;
1447 DS_sig(sigcontext
) = context
->SegDs
;
1450 ES_sig(sigcontext
) = context
->SegEs
;
1453 SS_sig(sigcontext
) = context
->SegSs
;
1455 if (FPU_sig(sigcontext
)) *FPU_sig(sigcontext
) = context
->u
.FltSave
;
1459 /***********************************************************************
1460 * RtlCaptureContext (NTDLL.@)
1462 void WINAPI
__regs_RtlCaptureContext( CONTEXT
*context
, CONTEXT
*regs
)
1466 DEFINE_REGS_ENTRYPOINT( RtlCaptureContext
, 1 )
1469 /***********************************************************************
1472 * Set the new CPU context.
1474 void set_cpu_context( const CONTEXT
*context
)
1476 extern void CDECL
__wine_restore_regs( const CONTEXT
* ) DECLSPEC_NORETURN
;
1477 __wine_restore_regs( context
);
1481 /***********************************************************************
1484 * Copy a register context according to the flags.
1486 void copy_context( CONTEXT
*to
, const CONTEXT
*from
, DWORD flags
)
1488 flags
&= ~CONTEXT_AMD64
; /* get rid of CPU id */
1489 if (flags
& CONTEXT_CONTROL
)
1491 to
->Rbp
= from
->Rbp
;
1492 to
->Rip
= from
->Rip
;
1493 to
->Rsp
= from
->Rsp
;
1494 to
->SegCs
= from
->SegCs
;
1495 to
->SegSs
= from
->SegSs
;
1496 to
->EFlags
= from
->EFlags
;
1498 if (flags
& CONTEXT_INTEGER
)
1500 to
->Rax
= from
->Rax
;
1501 to
->Rcx
= from
->Rcx
;
1502 to
->Rdx
= from
->Rdx
;
1503 to
->Rbx
= from
->Rbx
;
1504 to
->Rsi
= from
->Rsi
;
1505 to
->Rdi
= from
->Rdi
;
1508 to
->R10
= from
->R10
;
1509 to
->R11
= from
->R11
;
1510 to
->R12
= from
->R12
;
1511 to
->R13
= from
->R13
;
1512 to
->R14
= from
->R14
;
1513 to
->R15
= from
->R15
;
1515 if (flags
& CONTEXT_SEGMENTS
)
1517 to
->SegDs
= from
->SegDs
;
1518 to
->SegEs
= from
->SegEs
;
1519 to
->SegFs
= from
->SegFs
;
1520 to
->SegGs
= from
->SegGs
;
1522 if (flags
& CONTEXT_FLOATING_POINT
)
1524 to
->MxCsr
= from
->MxCsr
;
1525 to
->u
.FltSave
= from
->u
.FltSave
;
1527 if (flags
& CONTEXT_DEBUG_REGISTERS
)
1529 to
->Dr0
= from
->Dr0
;
1530 to
->Dr1
= from
->Dr1
;
1531 to
->Dr2
= from
->Dr2
;
1532 to
->Dr3
= from
->Dr3
;
1533 to
->Dr6
= from
->Dr6
;
1534 to
->Dr7
= from
->Dr7
;
1539 /***********************************************************************
1542 * Convert a register context to the server format.
1544 NTSTATUS
context_to_server( context_t
*to
, const CONTEXT
*from
)
1546 DWORD flags
= from
->ContextFlags
& ~CONTEXT_AMD64
; /* get rid of CPU id */
1548 memset( to
, 0, sizeof(*to
) );
1549 to
->cpu
= CPU_x86_64
;
1551 if (flags
& CONTEXT_CONTROL
)
1553 to
->flags
|= SERVER_CTX_CONTROL
;
1554 to
->ctl
.x86_64_regs
.rbp
= from
->Rbp
;
1555 to
->ctl
.x86_64_regs
.rip
= from
->Rip
;
1556 to
->ctl
.x86_64_regs
.rsp
= from
->Rsp
;
1557 to
->ctl
.x86_64_regs
.cs
= from
->SegCs
;
1558 to
->ctl
.x86_64_regs
.ss
= from
->SegSs
;
1559 to
->ctl
.x86_64_regs
.flags
= from
->EFlags
;
1561 if (flags
& CONTEXT_INTEGER
)
1563 to
->flags
|= SERVER_CTX_INTEGER
;
1564 to
->integer
.x86_64_regs
.rax
= from
->Rax
;
1565 to
->integer
.x86_64_regs
.rcx
= from
->Rcx
;
1566 to
->integer
.x86_64_regs
.rdx
= from
->Rdx
;
1567 to
->integer
.x86_64_regs
.rbx
= from
->Rbx
;
1568 to
->integer
.x86_64_regs
.rsi
= from
->Rsi
;
1569 to
->integer
.x86_64_regs
.rdi
= from
->Rdi
;
1570 to
->integer
.x86_64_regs
.r8
= from
->R8
;
1571 to
->integer
.x86_64_regs
.r9
= from
->R9
;
1572 to
->integer
.x86_64_regs
.r10
= from
->R10
;
1573 to
->integer
.x86_64_regs
.r11
= from
->R11
;
1574 to
->integer
.x86_64_regs
.r12
= from
->R12
;
1575 to
->integer
.x86_64_regs
.r13
= from
->R13
;
1576 to
->integer
.x86_64_regs
.r14
= from
->R14
;
1577 to
->integer
.x86_64_regs
.r15
= from
->R15
;
1579 if (flags
& CONTEXT_SEGMENTS
)
1581 to
->flags
|= SERVER_CTX_SEGMENTS
;
1582 to
->seg
.x86_64_regs
.ds
= from
->SegDs
;
1583 to
->seg
.x86_64_regs
.es
= from
->SegEs
;
1584 to
->seg
.x86_64_regs
.fs
= from
->SegFs
;
1585 to
->seg
.x86_64_regs
.gs
= from
->SegGs
;
1587 if (flags
& CONTEXT_FLOATING_POINT
)
1589 to
->flags
|= SERVER_CTX_FLOATING_POINT
;
1590 memcpy( to
->fp
.x86_64_regs
.fpregs
, &from
->u
.FltSave
, sizeof(to
->fp
.x86_64_regs
.fpregs
) );
1592 if (flags
& CONTEXT_DEBUG_REGISTERS
)
1594 to
->flags
|= SERVER_CTX_DEBUG_REGISTERS
;
1595 to
->debug
.x86_64_regs
.dr0
= from
->Dr0
;
1596 to
->debug
.x86_64_regs
.dr1
= from
->Dr1
;
1597 to
->debug
.x86_64_regs
.dr2
= from
->Dr2
;
1598 to
->debug
.x86_64_regs
.dr3
= from
->Dr3
;
1599 to
->debug
.x86_64_regs
.dr6
= from
->Dr6
;
1600 to
->debug
.x86_64_regs
.dr7
= from
->Dr7
;
1602 return STATUS_SUCCESS
;
1606 /***********************************************************************
1607 * context_from_server
1609 * Convert a register context from the server format.
1611 NTSTATUS
context_from_server( CONTEXT
*to
, const context_t
*from
)
1613 if (from
->cpu
!= CPU_x86_64
) return STATUS_INVALID_PARAMETER
;
1615 to
->ContextFlags
= CONTEXT_AMD64
;
1616 if (from
->flags
& SERVER_CTX_CONTROL
)
1618 to
->ContextFlags
|= CONTEXT_CONTROL
;
1619 to
->Rbp
= from
->ctl
.x86_64_regs
.rbp
;
1620 to
->Rip
= from
->ctl
.x86_64_regs
.rip
;
1621 to
->Rsp
= from
->ctl
.x86_64_regs
.rsp
;
1622 to
->SegCs
= from
->ctl
.x86_64_regs
.cs
;
1623 to
->SegSs
= from
->ctl
.x86_64_regs
.ss
;
1624 to
->EFlags
= from
->ctl
.x86_64_regs
.flags
;
1627 if (from
->flags
& SERVER_CTX_INTEGER
)
1629 to
->ContextFlags
|= CONTEXT_INTEGER
;
1630 to
->Rax
= from
->integer
.x86_64_regs
.rax
;
1631 to
->Rcx
= from
->integer
.x86_64_regs
.rcx
;
1632 to
->Rdx
= from
->integer
.x86_64_regs
.rdx
;
1633 to
->Rbx
= from
->integer
.x86_64_regs
.rbx
;
1634 to
->Rsi
= from
->integer
.x86_64_regs
.rsi
;
1635 to
->Rdi
= from
->integer
.x86_64_regs
.rdi
;
1636 to
->R8
= from
->integer
.x86_64_regs
.r8
;
1637 to
->R9
= from
->integer
.x86_64_regs
.r9
;
1638 to
->R10
= from
->integer
.x86_64_regs
.r10
;
1639 to
->R11
= from
->integer
.x86_64_regs
.r11
;
1640 to
->R12
= from
->integer
.x86_64_regs
.r12
;
1641 to
->R13
= from
->integer
.x86_64_regs
.r13
;
1642 to
->R14
= from
->integer
.x86_64_regs
.r14
;
1643 to
->R15
= from
->integer
.x86_64_regs
.r15
;
1645 if (from
->flags
& SERVER_CTX_SEGMENTS
)
1647 to
->ContextFlags
|= CONTEXT_SEGMENTS
;
1648 to
->SegDs
= from
->seg
.x86_64_regs
.ds
;
1649 to
->SegEs
= from
->seg
.x86_64_regs
.es
;
1650 to
->SegFs
= from
->seg
.x86_64_regs
.fs
;
1651 to
->SegGs
= from
->seg
.x86_64_regs
.gs
;
1653 if (from
->flags
& SERVER_CTX_FLOATING_POINT
)
1655 to
->ContextFlags
|= CONTEXT_FLOATING_POINT
;
1656 memcpy( &to
->u
.FltSave
, from
->fp
.x86_64_regs
.fpregs
, sizeof(from
->fp
.x86_64_regs
.fpregs
) );
1657 to
->MxCsr
= to
->u
.FltSave
.MxCsr
;
1659 if (from
->flags
& SERVER_CTX_DEBUG_REGISTERS
)
1661 to
->ContextFlags
|= CONTEXT_DEBUG_REGISTERS
;
1662 to
->Dr0
= from
->debug
.x86_64_regs
.dr0
;
1663 to
->Dr1
= from
->debug
.x86_64_regs
.dr1
;
1664 to
->Dr2
= from
->debug
.x86_64_regs
.dr2
;
1665 to
->Dr3
= from
->debug
.x86_64_regs
.dr3
;
1666 to
->Dr6
= from
->debug
.x86_64_regs
.dr6
;
1667 to
->Dr7
= from
->debug
.x86_64_regs
.dr7
;
1669 return STATUS_SUCCESS
;
1673 extern void raise_func_trampoline( EXCEPTION_RECORD
*rec
, CONTEXT
*context
, raise_func func
);
1674 __ASM_GLOBAL_FUNC( raise_func_trampoline
,
1675 __ASM_CFI(".cfi_signal_frame\n\t")
1676 __ASM_CFI(".cfi_def_cfa %rbp,144\n\t") /* red zone + rip + rbp */
1677 __ASM_CFI(".cfi_rel_offset %rip,8\n\t")
1678 __ASM_CFI(".cfi_rel_offset %rbp,0\n\t")
1682 /***********************************************************************
1685 * Setup a proper stack frame for the raise function, and modify the
1686 * sigcontext so that the return from the signal handler will call
1687 * the raise function.
1689 static EXCEPTION_RECORD
*setup_exception( ucontext_t
*sigcontext
, raise_func func
)
1694 EXCEPTION_RECORD rec
;
1697 ULONG64 red_zone
[16];
1700 DWORD exception_code
= 0;
1702 stack
= (struct stack_layout
*)(RSP_sig(sigcontext
) & ~15);
1704 /* stack sanity checks */
1706 if (is_inside_signal_stack( stack
))
1708 ERR( "nested exception on signal stack in thread %04x eip %016lx esp %016lx stack %p-%p\n",
1709 GetCurrentThreadId(), RIP_sig(sigcontext
), RSP_sig(sigcontext
),
1710 NtCurrentTeb()->Tib
.StackLimit
, NtCurrentTeb()->Tib
.StackBase
);
1714 if (stack
- 1 > stack
|| /* check for overflow in subtraction */
1715 (char *)stack
<= (char *)NtCurrentTeb()->DeallocationStack
||
1716 (char *)stack
> (char *)NtCurrentTeb()->Tib
.StackBase
)
1718 WARN( "exception outside of stack limits in thread %04x eip %016lx esp %016lx stack %p-%p\n",
1719 GetCurrentThreadId(), RIP_sig(sigcontext
), RSP_sig(sigcontext
),
1720 NtCurrentTeb()->Tib
.StackLimit
, NtCurrentTeb()->Tib
.StackBase
);
1722 else if ((char *)(stack
- 1) < (char *)NtCurrentTeb()->DeallocationStack
+ 4096)
1724 /* stack overflow on last page, unrecoverable */
1725 UINT diff
= (char *)NtCurrentTeb()->DeallocationStack
+ 4096 - (char *)(stack
- 1);
1726 ERR( "stack overflow %u bytes in thread %04x eip %016lx esp %016lx stack %p-%p-%p\n",
1727 diff
, GetCurrentThreadId(), RIP_sig(sigcontext
),
1728 RSP_sig(sigcontext
), NtCurrentTeb()->DeallocationStack
,
1729 NtCurrentTeb()->Tib
.StackLimit
, NtCurrentTeb()->Tib
.StackBase
);
1732 else if ((char *)(stack
- 1) < (char *)NtCurrentTeb()->Tib
.StackLimit
)
1734 /* stack access below stack limit, may be recoverable */
1735 if (virtual_handle_stack_fault( stack
- 1 )) exception_code
= EXCEPTION_STACK_OVERFLOW
;
1738 UINT diff
= (char *)NtCurrentTeb()->Tib
.StackLimit
- (char *)(stack
- 1);
1739 ERR( "stack overflow %u bytes in thread %04x eip %016lx esp %016lx stack %p-%p-%p\n",
1740 diff
, GetCurrentThreadId(), RIP_sig(sigcontext
),
1741 RSP_sig(sigcontext
), NtCurrentTeb()->DeallocationStack
,
1742 NtCurrentTeb()->Tib
.StackLimit
, NtCurrentTeb()->Tib
.StackBase
);
1747 stack
--; /* push the stack_layout structure */
1748 #if defined(VALGRIND_MAKE_MEM_UNDEFINED)
1749 VALGRIND_MAKE_MEM_UNDEFINED(stack
, sizeof(*stack
));
1750 #elif defined(VALGRIND_MAKE_WRITABLE)
1751 VALGRIND_MAKE_WRITABLE(stack
, sizeof(*stack
));
1753 stack
->rec
.ExceptionRecord
= NULL
;
1754 stack
->rec
.ExceptionCode
= exception_code
;
1755 stack
->rec
.ExceptionFlags
= EXCEPTION_CONTINUABLE
;
1756 stack
->rec
.ExceptionAddress
= (void *)RIP_sig(sigcontext
);
1757 stack
->rec
.NumberParameters
= 0;
1758 save_context( &stack
->context
, sigcontext
);
1760 /* store return address and %rbp without aligning, so that the offset is fixed */
1761 rsp_ptr
= (ULONG64
*)RSP_sig(sigcontext
) - 16;
1762 *(--rsp_ptr
) = RIP_sig(sigcontext
);
1763 *(--rsp_ptr
) = RBP_sig(sigcontext
);
1765 /* now modify the sigcontext to return to the raise function */
1766 RIP_sig(sigcontext
) = (ULONG_PTR
)raise_func_trampoline
;
1767 RDI_sig(sigcontext
) = (ULONG_PTR
)&stack
->rec
;
1768 RSI_sig(sigcontext
) = (ULONG_PTR
)&stack
->context
;
1769 RDX_sig(sigcontext
) = (ULONG_PTR
)func
;
1770 RBP_sig(sigcontext
) = (ULONG_PTR
)rsp_ptr
;
1771 RSP_sig(sigcontext
) = (ULONG_PTR
)stack
;
1772 /* clear single-step, direction, and align check flag */
1773 EFL_sig(sigcontext
) &= ~(0x100|0x400|0x40000);
1779 /**********************************************************************
1780 * find_function_info
1782 static RUNTIME_FUNCTION
*find_function_info( ULONG64 pc
, HMODULE module
,
1783 RUNTIME_FUNCTION
*func
, ULONG size
)
1786 int max
= size
/sizeof(*func
) - 1;
1790 int pos
= (min
+ max
) / 2;
1791 if ((char *)pc
< (char *)module
+ func
[pos
].BeginAddress
) max
= pos
- 1;
1792 else if ((char *)pc
>= (char *)module
+ func
[pos
].EndAddress
) min
= pos
+ 1;
1796 while (func
->UnwindData
& 1) /* follow chained entry */
1797 func
= (RUNTIME_FUNCTION
*)((char *)module
+ (func
->UnwindData
& ~1));
1805 /**********************************************************************
1808 * Call a single exception handler.
1809 * FIXME: Handle nested exceptions.
1811 static NTSTATUS
call_handler( EXCEPTION_RECORD
*rec
, DISPATCHER_CONTEXT
*dispatch
, CONTEXT
*orig_context
)
1815 dispatch
->ControlPc
= dispatch
->ContextRecord
->Rip
;
1817 TRACE( "calling handler %p (rec=%p, frame=0x%lx context=%p, dispatch=%p)\n",
1818 dispatch
->LanguageHandler
, rec
, dispatch
->EstablisherFrame
, dispatch
->ContextRecord
, dispatch
);
1819 res
= dispatch
->LanguageHandler( rec
, dispatch
->EstablisherFrame
, dispatch
->ContextRecord
, dispatch
);
1820 TRACE( "handler at %p returned %u\n", dispatch
->LanguageHandler
, res
);
1824 case ExceptionContinueExecution
:
1825 if (rec
->ExceptionFlags
& EH_NONCONTINUABLE
) return STATUS_NONCONTINUABLE_EXCEPTION
;
1826 *orig_context
= *dispatch
->ContextRecord
;
1827 return STATUS_SUCCESS
;
1828 case ExceptionContinueSearch
:
1830 case ExceptionNestedException
:
1833 return STATUS_INVALID_DISPOSITION
;
1835 return STATUS_UNHANDLED_EXCEPTION
;
1839 /**********************************************************************
1842 * Call a single exception handler from the TEB chain.
1843 * FIXME: Handle nested exceptions.
1845 static NTSTATUS
call_teb_handler( EXCEPTION_RECORD
*rec
, DISPATCHER_CONTEXT
*dispatch
,
1846 EXCEPTION_REGISTRATION_RECORD
*teb_frame
, CONTEXT
*orig_context
)
1848 EXCEPTION_REGISTRATION_RECORD
*dispatcher
;
1851 TRACE( "calling TEB handler %p (rec=%p, frame=%p context=%p, dispatcher=%p)\n",
1852 teb_frame
->Handler
, rec
, teb_frame
, dispatch
->ContextRecord
, &dispatcher
);
1853 res
= teb_frame
->Handler( rec
, teb_frame
, dispatch
->ContextRecord
, &dispatcher
);
1854 TRACE( "handler at %p returned %u\n", teb_frame
->Handler
, res
);
1858 case ExceptionContinueExecution
:
1859 if (rec
->ExceptionFlags
& EH_NONCONTINUABLE
) return STATUS_NONCONTINUABLE_EXCEPTION
;
1860 *orig_context
= *dispatch
->ContextRecord
;
1861 return STATUS_SUCCESS
;
1862 case ExceptionContinueSearch
:
1864 case ExceptionNestedException
:
1867 return STATUS_INVALID_DISPOSITION
;
1869 return STATUS_UNHANDLED_EXCEPTION
;
1873 /**********************************************************************
1874 * call_stack_handlers
1876 * Call the stack handlers chain.
1878 static NTSTATUS
call_stack_handlers( EXCEPTION_RECORD
*rec
, CONTEXT
*orig_context
)
1880 EXCEPTION_REGISTRATION_RECORD
*teb_frame
= NtCurrentTeb()->Tib
.ExceptionList
;
1881 UNWIND_HISTORY_TABLE table
;
1882 DISPATCHER_CONTEXT dispatch
;
1883 CONTEXT context
, new_context
;
1888 context
= *orig_context
;
1889 dispatch
.TargetIp
= 0;
1890 dispatch
.ContextRecord
= &context
;
1891 dispatch
.HistoryTable
= &table
;
1892 dispatch
.ScopeIndex
= 0; /* FIXME */
1895 new_context
= context
;
1897 /* FIXME: should use the history table to make things faster */
1900 dispatch
.ImageBase
= 0;
1902 /* first look for PE exception information */
1904 if (!LdrFindEntryForAddress( (void *)context
.Rip
, &module
))
1906 RUNTIME_FUNCTION
*dir
;
1908 dispatch
.ImageBase
= (ULONG64
)module
->BaseAddress
;
1909 if ((dir
= RtlImageDirectoryEntryToData( module
->BaseAddress
, TRUE
,
1910 IMAGE_DIRECTORY_ENTRY_EXCEPTION
, &size
)))
1912 if ((dispatch
.FunctionEntry
= find_function_info( context
.Rip
, module
->BaseAddress
,
1915 dispatch
.LanguageHandler
= RtlVirtualUnwind( UNW_FLAG_EHANDLER
, dispatch
.ImageBase
,
1916 context
.Rip
, dispatch
.FunctionEntry
,
1917 &new_context
, &dispatch
.HandlerData
,
1918 &dispatch
.EstablisherFrame
, NULL
);
1922 else if (!(module
->Flags
& LDR_WINE_INTERNAL
))
1923 WARN( "exception data not found in %s\n", debugstr_w(module
->BaseDllName
.Buffer
) );
1926 /* then look for host system exception information */
1928 if (!module
|| (module
->Flags
& LDR_WINE_INTERNAL
))
1930 struct dwarf_eh_bases bases
;
1931 const struct dwarf_fde
*fde
= _Unwind_Find_FDE( (void *)(context
.Rip
- 1), &bases
);
1935 status
= dwarf_virtual_unwind( context
.Rip
, &dispatch
.EstablisherFrame
, &new_context
,
1936 fde
, &bases
, &dispatch
.LanguageHandler
, &dispatch
.HandlerData
);
1937 if (status
!= STATUS_SUCCESS
) return status
;
1938 dispatch
.FunctionEntry
= NULL
;
1939 if (dispatch
.LanguageHandler
&& !module
)
1941 FIXME( "calling personality routine in system library not supported yet\n" );
1942 dispatch
.LanguageHandler
= NULL
;
1948 /* no exception information, treat as a leaf function */
1950 new_context
.Rip
= *(ULONG64
*)context
.Rsp
;
1951 new_context
.Rsp
= context
.Rsp
+ sizeof(ULONG64
);
1952 dispatch
.EstablisherFrame
= new_context
.Rsp
;
1953 dispatch
.LanguageHandler
= NULL
;
1956 if (!dispatch
.EstablisherFrame
) break;
1958 if ((dispatch
.EstablisherFrame
& 7) ||
1959 dispatch
.EstablisherFrame
< (ULONG64
)NtCurrentTeb()->Tib
.StackLimit
||
1960 dispatch
.EstablisherFrame
> (ULONG64
)NtCurrentTeb()->Tib
.StackBase
)
1962 ERR( "invalid frame %lx (%p-%p)\n", dispatch
.EstablisherFrame
,
1963 NtCurrentTeb()->Tib
.StackLimit
, NtCurrentTeb()->Tib
.StackBase
);
1964 rec
->ExceptionFlags
|= EH_STACK_INVALID
;
1968 if (dispatch
.LanguageHandler
)
1970 status
= call_handler( rec
, &dispatch
, orig_context
);
1971 if (status
!= STATUS_UNHANDLED_EXCEPTION
) return status
;
1973 /* hack: call wine handlers registered in the tib list */
1974 else while ((ULONG64
)teb_frame
< new_context
.Rsp
)
1976 TRACE( "found wine frame %p rsp %lx handler %p\n",
1977 teb_frame
, new_context
.Rsp
, teb_frame
->Handler
);
1978 dispatch
.EstablisherFrame
= (ULONG64
)teb_frame
;
1979 context
= *orig_context
;
1980 status
= call_teb_handler( rec
, &dispatch
, teb_frame
, orig_context
);
1981 if (status
!= STATUS_UNHANDLED_EXCEPTION
) return status
;
1982 teb_frame
= teb_frame
->Prev
;
1985 if (new_context
.Rsp
== (ULONG64
)NtCurrentTeb()->Tib
.StackBase
) break;
1986 context
= new_context
;
1988 return STATUS_UNHANDLED_EXCEPTION
;
1992 /*******************************************************************
1995 * Implementation of NtRaiseException.
1997 static NTSTATUS
raise_exception( EXCEPTION_RECORD
*rec
, CONTEXT
*context
, BOOL first_chance
)
2005 TRACE( "code=%x flags=%x addr=%p ip=%lx tid=%04x\n",
2006 rec
->ExceptionCode
, rec
->ExceptionFlags
, rec
->ExceptionAddress
,
2007 context
->Rip
, GetCurrentThreadId() );
2008 for (c
= 0; c
< min( EXCEPTION_MAXIMUM_PARAMETERS
, rec
->NumberParameters
); c
++)
2009 TRACE( " info[%d]=%08lx\n", c
, rec
->ExceptionInformation
[c
] );
2010 if (rec
->ExceptionCode
== EXCEPTION_WINE_STUB
)
2012 if (rec
->ExceptionInformation
[1] >> 16)
2013 MESSAGE( "wine: Call from %p to unimplemented function %s.%s, aborting\n",
2014 rec
->ExceptionAddress
,
2015 (char*)rec
->ExceptionInformation
[0], (char*)rec
->ExceptionInformation
[1] );
2017 MESSAGE( "wine: Call from %p to unimplemented function %s.%ld, aborting\n",
2018 rec
->ExceptionAddress
,
2019 (char*)rec
->ExceptionInformation
[0], rec
->ExceptionInformation
[1] );
2023 TRACE(" rax=%016lx rbx=%016lx rcx=%016lx rdx=%016lx\n",
2024 context
->Rax
, context
->Rbx
, context
->Rcx
, context
->Rdx
);
2025 TRACE(" rsi=%016lx rdi=%016lx rbp=%016lx rsp=%016lx\n",
2026 context
->Rsi
, context
->Rdi
, context
->Rbp
, context
->Rsp
);
2027 TRACE(" r8=%016lx r9=%016lx r10=%016lx r11=%016lx\n",
2028 context
->R8
, context
->R9
, context
->R10
, context
->R11
);
2029 TRACE(" r12=%016lx r13=%016lx r14=%016lx r15=%016lx\n",
2030 context
->R12
, context
->R13
, context
->R14
, context
->R15
);
2032 status
= send_debug_event( rec
, TRUE
, context
);
2033 if (status
== DBG_CONTINUE
|| status
== DBG_EXCEPTION_HANDLED
)
2034 return STATUS_SUCCESS
;
2036 if (call_vectored_handlers( rec
, context
) == EXCEPTION_CONTINUE_EXECUTION
)
2037 return STATUS_SUCCESS
;
2039 if ((status
= call_stack_handlers( rec
, context
)) != STATUS_UNHANDLED_EXCEPTION
)
2043 /* last chance exception */
2045 status
= send_debug_event( rec
, FALSE
, context
);
2046 if (status
!= DBG_CONTINUE
)
2048 if (rec
->ExceptionFlags
& EH_STACK_INVALID
)
2049 ERR("Exception frame is not in stack limits => unable to dispatch exception.\n");
2050 else if (rec
->ExceptionCode
== STATUS_NONCONTINUABLE_EXCEPTION
)
2051 ERR("Process attempted to continue execution after noncontinuable exception.\n");
2053 ERR("Unhandled exception code %x flags %x addr %p\n",
2054 rec
->ExceptionCode
, rec
->ExceptionFlags
, rec
->ExceptionAddress
);
2055 NtTerminateProcess( NtCurrentProcess(), rec
->ExceptionCode
);
2057 return STATUS_SUCCESS
;
2061 /**********************************************************************
2062 * raise_segv_exception
2064 static void raise_segv_exception( EXCEPTION_RECORD
*rec
, CONTEXT
*context
)
2068 switch(rec
->ExceptionCode
)
2070 case EXCEPTION_ACCESS_VIOLATION
:
2071 if (rec
->NumberParameters
== 2)
2073 if (!(rec
->ExceptionCode
= virtual_handle_fault( (void *)rec
->ExceptionInformation
[1],
2074 rec
->ExceptionInformation
[0] )))
2075 set_cpu_context( context
);
2079 status
= raise_exception( rec
, context
, TRUE
);
2080 if (status
) raise_status( status
, rec
);
2081 set_cpu_context( context
);
2085 /**********************************************************************
2086 * raise_generic_exception
2088 * Generic raise function for exceptions that don't need special treatment.
2090 static void raise_generic_exception( EXCEPTION_RECORD
*rec
, CONTEXT
*context
)
2092 NTSTATUS status
= raise_exception( rec
, context
, TRUE
);
2093 if (status
) raise_status( status
, rec
);
2094 set_cpu_context( context
);
2098 /**********************************************************************
2101 * Handler for SIGSEGV and related errors.
2103 static void segv_handler( int signal
, siginfo_t
*siginfo
, void *sigcontext
)
2105 EXCEPTION_RECORD
*rec
= setup_exception( sigcontext
, raise_segv_exception
);
2106 ucontext_t
*ucontext
= sigcontext
;
2108 switch(TRAP_sig(ucontext
))
2110 case TRAP_x86_OFLOW
: /* Overflow exception */
2111 rec
->ExceptionCode
= EXCEPTION_INT_OVERFLOW
;
2113 case TRAP_x86_BOUND
: /* Bound range exception */
2114 rec
->ExceptionCode
= EXCEPTION_ARRAY_BOUNDS_EXCEEDED
;
2116 case TRAP_x86_PRIVINFLT
: /* Invalid opcode exception */
2117 rec
->ExceptionCode
= EXCEPTION_ILLEGAL_INSTRUCTION
;
2119 case TRAP_x86_STKFLT
: /* Stack fault */
2120 rec
->ExceptionCode
= EXCEPTION_STACK_OVERFLOW
;
2122 case TRAP_x86_SEGNPFLT
: /* Segment not present exception */
2123 case TRAP_x86_PROTFLT
: /* General protection fault */
2124 case TRAP_x86_UNKNOWN
: /* Unknown fault code */
2125 rec
->ExceptionCode
= ERROR_sig(ucontext
) ? EXCEPTION_ACCESS_VIOLATION
: EXCEPTION_PRIV_INSTRUCTION
;
2126 rec
->ExceptionCode
= EXCEPTION_ACCESS_VIOLATION
;
2128 case TRAP_x86_PAGEFLT
: /* Page fault */
2129 rec
->ExceptionCode
= EXCEPTION_ACCESS_VIOLATION
;
2130 rec
->NumberParameters
= 2;
2131 rec
->ExceptionInformation
[0] = (ERROR_sig(ucontext
) & 2) != 0;
2132 rec
->ExceptionInformation
[1] = (ULONG_PTR
)siginfo
->si_addr
;
2134 case TRAP_x86_ALIGNFLT
: /* Alignment check exception */
2135 rec
->ExceptionCode
= EXCEPTION_DATATYPE_MISALIGNMENT
;
2138 ERR( "Got unexpected trap %ld\n", TRAP_sig(ucontext
) );
2140 case TRAP_x86_NMI
: /* NMI interrupt */
2141 case TRAP_x86_DNA
: /* Device not available exception */
2142 case TRAP_x86_DOUBLEFLT
: /* Double fault exception */
2143 case TRAP_x86_TSSFLT
: /* Invalid TSS exception */
2144 case TRAP_x86_MCHK
: /* Machine check exception */
2145 case TRAP_x86_CACHEFLT
: /* Cache flush exception */
2146 rec
->ExceptionCode
= EXCEPTION_ILLEGAL_INSTRUCTION
;
2151 /**********************************************************************
2154 * Handler for SIGTRAP.
2156 static void trap_handler( int signal
, siginfo_t
*siginfo
, void *sigcontext
)
2158 EXCEPTION_RECORD
*rec
= setup_exception( sigcontext
, raise_generic_exception
);
2160 switch (siginfo
->si_code
)
2162 case TRAP_TRACE
: /* Single-step exception */
2163 case 4 /* TRAP_HWBKPT */: /* Hardware breakpoint exception */
2164 rec
->ExceptionCode
= EXCEPTION_SINGLE_STEP
;
2166 case TRAP_BRKPT
: /* Breakpoint exception */
2167 rec
->ExceptionAddress
= (char *)rec
->ExceptionAddress
- 1; /* back up over the int3 instruction */
2170 rec
->ExceptionCode
= EXCEPTION_BREAKPOINT
;
2175 /**********************************************************************
2178 * Handler for SIGFPE.
2180 static void fpe_handler( int signal
, siginfo_t
*siginfo
, void *sigcontext
)
2182 EXCEPTION_RECORD
*rec
= setup_exception( sigcontext
, raise_generic_exception
);
2184 switch (siginfo
->si_code
)
2187 rec
->ExceptionCode
= EXCEPTION_ARRAY_BOUNDS_EXCEEDED
;
2190 rec
->ExceptionCode
= EXCEPTION_INT_DIVIDE_BY_ZERO
;
2193 rec
->ExceptionCode
= EXCEPTION_INT_OVERFLOW
;
2196 rec
->ExceptionCode
= EXCEPTION_FLT_DIVIDE_BY_ZERO
;
2199 rec
->ExceptionCode
= EXCEPTION_FLT_OVERFLOW
;
2202 rec
->ExceptionCode
= EXCEPTION_FLT_UNDERFLOW
;
2205 rec
->ExceptionCode
= EXCEPTION_FLT_INEXACT_RESULT
;
2209 rec
->ExceptionCode
= EXCEPTION_FLT_INVALID_OPERATION
;
2214 /**********************************************************************
2217 * Handler for SIGINT.
2219 static void int_handler( int signal
, siginfo_t
*siginfo
, void *sigcontext
)
2221 if (!dispatch_signal(SIGINT
))
2223 EXCEPTION_RECORD
*rec
= setup_exception( sigcontext
, raise_generic_exception
);
2224 rec
->ExceptionCode
= CONTROL_C_EXIT
;
2229 /**********************************************************************
2232 * Handler for SIGABRT.
2234 static void abrt_handler( int signal
, siginfo_t
*siginfo
, void *sigcontext
)
2236 EXCEPTION_RECORD
*rec
= setup_exception( sigcontext
, raise_generic_exception
);
2237 rec
->ExceptionCode
= EXCEPTION_WINE_ASSERTION
;
2238 rec
->ExceptionFlags
= EH_NONCONTINUABLE
;
2242 /**********************************************************************
2245 * Handler for SIGQUIT.
2247 static void quit_handler( int signal
, siginfo_t
*siginfo
, void *ucontext
)
2253 /**********************************************************************
2256 * Handler for SIGUSR1, used to signal a thread that it got suspended.
2258 static void usr1_handler( int signal
, siginfo_t
*siginfo
, void *ucontext
)
2262 save_context( &context
, ucontext
);
2263 wait_suspend( &context
);
2264 restore_context( &context
, ucontext
);
2268 /***********************************************************************
2269 * __wine_set_signal_handler (NTDLL.@)
2271 int CDECL
__wine_set_signal_handler(unsigned int sig
, wine_signal_handler wsh
)
2273 if (sig
> sizeof(handlers
) / sizeof(handlers
[0])) return -1;
2274 if (handlers
[sig
] != NULL
) return -2;
2275 handlers
[sig
] = wsh
;
2280 /**********************************************************************
2281 * signal_alloc_thread
2283 NTSTATUS
signal_alloc_thread( TEB
**teb
)
2285 static size_t sigstack_zero_bits
;
2289 if (!sigstack_zero_bits
)
2291 size_t min_size
= teb_size
+ max( MINSIGSTKSZ
, 8192 );
2292 /* find the first power of two not smaller than min_size */
2293 sigstack_zero_bits
= 12;
2294 while ((1u << sigstack_zero_bits
) < min_size
) sigstack_zero_bits
++;
2295 signal_stack_size
= (1 << sigstack_zero_bits
) - teb_size
;
2296 assert( sizeof(TEB
) <= teb_size
);
2299 size
= 1 << sigstack_zero_bits
;
2301 if (!(status
= NtAllocateVirtualMemory( NtCurrentProcess(), (void **)teb
, sigstack_zero_bits
,
2302 &size
, MEM_COMMIT
| MEM_TOP_DOWN
, PAGE_READWRITE
)))
2304 (*teb
)->Tib
.Self
= &(*teb
)->Tib
;
2305 (*teb
)->Tib
.ExceptionList
= (void *)~0UL;
2311 /**********************************************************************
2312 * signal_free_thread
2314 void signal_free_thread( TEB
*teb
)
2318 if (teb
->DeallocationStack
)
2321 NtFreeVirtualMemory( GetCurrentProcess(), &teb
->DeallocationStack
, &size
, MEM_RELEASE
);
2324 NtFreeVirtualMemory( NtCurrentProcess(), (void **)&teb
, &size
, MEM_RELEASE
);
2328 /**********************************************************************
2329 * signal_init_thread
2331 void signal_init_thread( TEB
*teb
)
2335 #if defined __linux__
2336 arch_prctl( ARCH_SET_GS
, teb
);
2337 #elif defined __FreeBSD__
2338 amd64_set_gsbase( teb
);
2340 # error Please define setting %gs for your architecture
2343 ss
.ss_sp
= (char *)teb
+ teb_size
;
2344 ss
.ss_size
= signal_stack_size
;
2346 if (sigaltstack(&ss
, NULL
) == -1) perror( "sigaltstack" );
2349 /**********************************************************************
2350 * signal_init_process
2352 void signal_init_process(void)
2354 struct sigaction sig_act
;
2356 sig_act
.sa_mask
= server_block_set
;
2357 sig_act
.sa_flags
= SA_RESTART
| SA_SIGINFO
| SA_ONSTACK
;
2359 sig_act
.sa_sigaction
= int_handler
;
2360 if (sigaction( SIGINT
, &sig_act
, NULL
) == -1) goto error
;
2361 sig_act
.sa_sigaction
= fpe_handler
;
2362 if (sigaction( SIGFPE
, &sig_act
, NULL
) == -1) goto error
;
2363 sig_act
.sa_sigaction
= abrt_handler
;
2364 if (sigaction( SIGABRT
, &sig_act
, NULL
) == -1) goto error
;
2365 sig_act
.sa_sigaction
= quit_handler
;
2366 if (sigaction( SIGQUIT
, &sig_act
, NULL
) == -1) goto error
;
2367 sig_act
.sa_sigaction
= usr1_handler
;
2368 if (sigaction( SIGUSR1
, &sig_act
, NULL
) == -1) goto error
;
2370 sig_act
.sa_sigaction
= segv_handler
;
2371 if (sigaction( SIGSEGV
, &sig_act
, NULL
) == -1) goto error
;
2372 if (sigaction( SIGILL
, &sig_act
, NULL
) == -1) goto error
;
2374 if (sigaction( SIGBUS
, &sig_act
, NULL
) == -1) goto error
;
2378 sig_act
.sa_sigaction
= trap_handler
;
2379 if (sigaction( SIGTRAP
, &sig_act
, NULL
) == -1) goto error
;
2384 perror("sigaction");
2389 /**********************************************************************
2390 * RtlAddFunctionTable (NTDLL.@)
2392 BOOLEAN CDECL
RtlAddFunctionTable( RUNTIME_FUNCTION
*table
, DWORD count
, DWORD64 addr
)
2394 FIXME( "%p %u %lx: stub\n", table
, count
, addr
);
2399 /**********************************************************************
2400 * RtlDeleteFunctionTable (NTDLL.@)
2402 BOOLEAN CDECL
RtlDeleteFunctionTable( RUNTIME_FUNCTION
*table
)
2404 FIXME( "%p: stub\n", table
);
2409 /**********************************************************************
2410 * RtlLookupFunctionEntry (NTDLL.@)
2412 PRUNTIME_FUNCTION WINAPI
RtlLookupFunctionEntry( ULONG64 pc
, ULONG64
*base
, UNWIND_HISTORY_TABLE
*table
)
2415 RUNTIME_FUNCTION
*func
;
2418 /* FIXME: should use the history table to make things faster */
2420 if (LdrFindEntryForAddress( (void *)pc
, &module
))
2422 WARN( "module not found for %lx\n", pc
);
2425 if (!(func
= RtlImageDirectoryEntryToData( module
->BaseAddress
, TRUE
,
2426 IMAGE_DIRECTORY_ENTRY_EXCEPTION
, &size
)))
2428 WARN( "no exception table found in module %p pc %lx\n", module
->BaseAddress
, pc
);
2431 func
= find_function_info( pc
, module
->BaseAddress
, func
, size
);
2432 if (func
) *base
= (ULONG64
)module
->BaseAddress
;
2436 static ULONG64
get_int_reg( CONTEXT
*context
, int reg
)
2438 return *(&context
->Rax
+ reg
);
2441 static void set_int_reg( CONTEXT
*context
, KNONVOLATILE_CONTEXT_POINTERS
*ctx_ptr
, int reg
, ULONG64 val
)
2443 *(&context
->Rax
+ reg
) = val
;
2444 if (ctx_ptr
) ctx_ptr
->u2
.IntegerContext
[reg
] = &context
->Rax
+ reg
;
2447 static void set_float_reg( CONTEXT
*context
, KNONVOLATILE_CONTEXT_POINTERS
*ctx_ptr
, int reg
, M128A val
)
2449 *(&context
->u
.s
.Xmm0
+ reg
) = val
;
2450 if (ctx_ptr
) ctx_ptr
->u1
.FloatingContext
[reg
] = &context
->u
.s
.Xmm0
+ reg
;
2453 static int get_opcode_size( struct opcode op
)
2457 case UWOP_ALLOC_LARGE
:
2458 return 2 + (op
.info
!= 0);
2459 case UWOP_SAVE_NONVOL
:
2460 case UWOP_SAVE_XMM128
:
2462 case UWOP_SAVE_NONVOL_FAR
:
2463 case UWOP_SAVE_XMM128_FAR
:
2470 static BOOL
is_inside_epilog( BYTE
*pc
)
2472 /* add or lea must be the first instruction, and it must have a rex.W prefix */
2473 if ((pc
[0] & 0xf8) == 0x48)
2477 case 0x81: /* add $nnnn,%rsp */
2478 if (pc
[0] == 0x48 && pc
[2] == 0xc4)
2484 case 0x83: /* add $n,%rsp */
2485 if (pc
[0] == 0x48 && pc
[2] == 0xc4)
2491 case 0x8d: /* lea n(reg),%rsp */
2492 if (pc
[0] & 0x06) return FALSE
; /* rex.RX must be cleared */
2493 if (((pc
[2] >> 3) & 7) != 4) return FALSE
; /* dest reg mus be %rsp */
2494 if ((pc
[2] & 7) == 4) return FALSE
; /* no SIB byte allowed */
2495 if ((pc
[2] >> 6) == 1) /* 8-bit offset */
2500 if ((pc
[2] >> 6) == 2) /* 32-bit offset */
2509 /* now check for various pop instructions */
2515 if ((*pc
& 0xf0) == 0x40) rex
= *pc
++ & 0x0f; /* rex prefix */
2519 case 0x58: /* pop %rax/%r8 */
2520 case 0x59: /* pop %rcx/%r9 */
2521 case 0x5a: /* pop %rdx/%r10 */
2522 case 0x5b: /* pop %rbx/%r11 */
2523 case 0x5c: /* pop %rsp/%r12 */
2524 case 0x5d: /* pop %rbp/%r13 */
2525 case 0x5e: /* pop %rsi/%r14 */
2526 case 0x5f: /* pop %rdi/%r15 */
2529 case 0xc2: /* ret $nn */
2530 case 0xc3: /* ret */
2532 /* FIXME: add various jump instructions */
2538 /* execute a function epilog, which must have been validated with is_inside_epilog() */
2539 static void interpret_epilog( BYTE
*pc
, CONTEXT
*context
, KNONVOLATILE_CONTEXT_POINTERS
*ctx_ptr
)
2545 if ((*pc
& 0xf0) == 0x40) rex
= *pc
++ & 0x0f; /* rex prefix */
2549 case 0x58: /* pop %rax/r8 */
2550 case 0x59: /* pop %rcx/r9 */
2551 case 0x5a: /* pop %rdx/r10 */
2552 case 0x5b: /* pop %rbx/r11 */
2553 case 0x5c: /* pop %rsp/r12 */
2554 case 0x5d: /* pop %rbp/r13 */
2555 case 0x5e: /* pop %rsi/r14 */
2556 case 0x5f: /* pop %rdi/r15 */
2557 set_int_reg( context
, ctx_ptr
, *pc
- 0x58 + (rex
& 1) * 8, *(ULONG64
*)context
->Rsp
);
2558 context
->Rsp
+= sizeof(ULONG64
);
2561 case 0x81: /* add $nnnn,%rsp */
2562 context
->Rsp
+= *(LONG
*)(pc
+ 2);
2563 pc
+= 2 + sizeof(LONG
);
2565 case 0x83: /* add $n,%rsp */
2566 context
->Rsp
+= (signed char)pc
[2];
2570 if ((pc
[1] >> 6) == 1) /* lea n(reg),%rsp */
2572 context
->Rsp
= get_int_reg( context
, (pc
[1] & 7) + (rex
& 1) * 8 ) + (signed char)pc
[2];
2575 else /* lea nnnn(reg),%rsp */
2577 context
->Rsp
= get_int_reg( context
, (pc
[1] & 7) + (rex
& 1) * 8 ) + *(LONG
*)(pc
+ 2);
2578 pc
+= 2 + sizeof(LONG
);
2581 case 0xc2: /* ret $nn */
2582 context
->Rip
= *(ULONG64
*)context
->Rsp
;
2583 context
->Rsp
+= sizeof(ULONG64
) + *(WORD
*)(pc
+ 1);
2585 case 0xc3: /* ret */
2586 context
->Rip
= *(ULONG64
*)context
->Rsp
;
2587 context
->Rsp
+= sizeof(ULONG64
);
2589 /* FIXME: add various jump instructions */
2595 /**********************************************************************
2596 * RtlVirtualUnwind (NTDLL.@)
2598 PVOID WINAPI
RtlVirtualUnwind( ULONG type
, ULONG64 base
, ULONG64 pc
,
2599 RUNTIME_FUNCTION
*function
, CONTEXT
*context
,
2600 PVOID
*data
, ULONG64
*frame_ret
,
2601 KNONVOLATILE_CONTEXT_POINTERS
*ctx_ptr
)
2603 union handler_data
*handler_data
;
2605 struct UNWIND_INFO
*info
;
2606 unsigned int i
, prolog_offset
;
2608 TRACE( "type %x rip %lx rsp %lx\n", type
, pc
, context
->Rsp
);
2609 if (TRACE_ON(seh
)) dump_unwind_info( base
, function
);
2611 frame
= *frame_ret
= context
->Rsp
;
2614 info
= (struct UNWIND_INFO
*)((char *)base
+ function
->UnwindData
);
2615 handler_data
= (union handler_data
*)&info
->opcodes
[(info
->count
+ 1) & ~1];
2617 if (info
->version
!= 1)
2619 FIXME( "unknown unwind info version %u at %p\n", info
->version
, info
);
2623 if (info
->frame_reg
)
2624 frame
= get_int_reg( context
, info
->frame_reg
) - info
->frame_offset
* 16;
2626 /* check if in prolog */
2627 if (pc
>= base
+ function
->BeginAddress
&& pc
< base
+ function
->BeginAddress
+ info
->prolog
)
2629 prolog_offset
= pc
- base
- function
->BeginAddress
;
2634 if (is_inside_epilog( (BYTE
*)pc
))
2636 interpret_epilog( (BYTE
*)pc
, context
, ctx_ptr
);
2642 for (i
= 0; i
< info
->count
; i
+= get_opcode_size(info
->opcodes
[i
]))
2644 if (prolog_offset
< info
->opcodes
[i
].offset
) continue; /* skip it */
2646 switch (info
->opcodes
[i
].code
)
2648 case UWOP_PUSH_NONVOL
: /* pushq %reg */
2649 set_int_reg( context
, ctx_ptr
, info
->opcodes
[i
].info
, *(ULONG64
*)context
->Rsp
);
2650 context
->Rsp
+= sizeof(ULONG64
);
2652 case UWOP_ALLOC_LARGE
: /* subq $nn,%rsp */
2653 if (info
->opcodes
[i
].info
) context
->Rsp
+= *(DWORD
*)&info
->opcodes
[i
+1];
2654 else context
->Rsp
+= *(USHORT
*)&info
->opcodes
[i
+1] * 8;
2656 case UWOP_ALLOC_SMALL
: /* subq $n,%rsp */
2657 context
->Rsp
+= (info
->opcodes
[i
].info
+ 1) * 8;
2659 case UWOP_SET_FPREG
: /* leaq nn(%rsp),%framereg */
2660 context
->Rsp
= *frame_ret
= frame
;
2662 case UWOP_SAVE_NONVOL
: /* movq %reg,n(%rsp) */
2663 off
= frame
+ *(USHORT
*)&info
->opcodes
[i
+1] * 8;
2664 set_int_reg( context
, ctx_ptr
, info
->opcodes
[i
].info
, *(ULONG64
*)off
);
2666 case UWOP_SAVE_NONVOL_FAR
: /* movq %reg,nn(%rsp) */
2667 off
= frame
+ *(DWORD
*)&info
->opcodes
[i
+1];
2668 set_int_reg( context
, ctx_ptr
, info
->opcodes
[i
].info
, *(ULONG64
*)off
);
2670 case UWOP_SAVE_XMM128
: /* movaps %xmmreg,n(%rsp) */
2671 off
= frame
+ *(USHORT
*)&info
->opcodes
[i
+1] * 16;
2672 set_float_reg( context
, ctx_ptr
, info
->opcodes
[i
].info
, *(M128A
*)off
);
2674 case UWOP_SAVE_XMM128_FAR
: /* movaps %xmmreg,nn(%rsp) */
2675 off
= frame
+ *(DWORD
*)&info
->opcodes
[i
+1];
2676 set_float_reg( context
, ctx_ptr
, info
->opcodes
[i
].info
, *(M128A
*)off
);
2678 case UWOP_PUSH_MACHFRAME
:
2679 FIXME( "PUSH_MACHFRAME %u\n", info
->opcodes
[i
].info
);
2682 FIXME( "unknown code %u\n", info
->opcodes
[i
].code
);
2687 if (!(info
->flags
& UNW_FLAG_CHAININFO
)) break;
2688 function
= &handler_data
->chain
; /* restart with the chained info */
2691 /* now pop return address */
2692 context
->Rip
= *(ULONG64
*)context
->Rsp
;
2693 context
->Rsp
+= sizeof(ULONG64
);
2695 if (!(info
->flags
& type
)) return NULL
; /* no matching handler */
2696 if (prolog_offset
!= ~0) return NULL
; /* inside prolog */
2698 *data
= &handler_data
->handler
+ 1;
2699 return (char *)base
+ handler_data
->handler
;
2703 /**********************************************************************
2704 * call_unwind_handler
2706 * Call a single unwind handler.
2707 * FIXME: Handle nested exceptions.
2709 static void call_unwind_handler( EXCEPTION_RECORD
*rec
, DISPATCHER_CONTEXT
*dispatch
)
2713 dispatch
->ControlPc
= dispatch
->ContextRecord
->Rip
;
2715 TRACE( "calling handler %p (rec=%p, frame=0x%lx context=%p, dispatch=%p)\n",
2716 dispatch
->LanguageHandler
, rec
, dispatch
->EstablisherFrame
, dispatch
->ContextRecord
, dispatch
);
2717 res
= dispatch
->LanguageHandler( rec
, dispatch
->EstablisherFrame
, dispatch
->ContextRecord
, dispatch
);
2718 TRACE( "handler %p returned %x\n", dispatch
->LanguageHandler
, res
);
2722 case ExceptionContinueSearch
:
2724 case ExceptionCollidedUnwind
:
2725 FIXME( "ExceptionCollidedUnwind not supported yet\n" );
2728 raise_status( STATUS_INVALID_DISPOSITION
, rec
);
2734 /**********************************************************************
2735 * call_teb_unwind_handler
2737 * Call a single unwind handler from the TEB chain.
2738 * FIXME: Handle nested exceptions.
2740 static void call_teb_unwind_handler( EXCEPTION_RECORD
*rec
, DISPATCHER_CONTEXT
*dispatch
,
2741 EXCEPTION_REGISTRATION_RECORD
*teb_frame
)
2743 EXCEPTION_REGISTRATION_RECORD
*dispatcher
;
2746 TRACE( "calling TEB handler %p (rec=%p, frame=%p context=%p, dispatcher=%p)\n",
2747 teb_frame
->Handler
, rec
, teb_frame
, dispatch
->ContextRecord
, &dispatcher
);
2748 res
= teb_frame
->Handler( rec
, teb_frame
, dispatch
->ContextRecord
, &dispatcher
);
2749 TRACE( "handler at %p returned %u\n", teb_frame
->Handler
, res
);
2753 case ExceptionContinueSearch
:
2755 case ExceptionCollidedUnwind
:
2756 FIXME( "ExceptionCollidedUnwind not supported yet\n" );
2759 raise_status( STATUS_INVALID_DISPOSITION
, rec
);
2765 /*******************************************************************
2766 * RtlUnwindEx (NTDLL.@)
2768 void WINAPI
RtlUnwindEx( ULONG64 end_frame
, ULONG64 target_ip
, EXCEPTION_RECORD
*rec
,
2769 ULONG64 retval
, CONTEXT
*orig_context
, UNWIND_HISTORY_TABLE
*table
)
2771 EXCEPTION_REGISTRATION_RECORD
*teb_frame
= NtCurrentTeb()->Tib
.ExceptionList
;
2772 EXCEPTION_RECORD record
;
2773 DISPATCHER_CONTEXT dispatch
;
2774 CONTEXT context
, new_context
;
2779 /* build an exception record, if we do not have one */
2782 record
.ExceptionCode
= STATUS_UNWIND
;
2783 record
.ExceptionFlags
= 0;
2784 record
.ExceptionRecord
= NULL
;
2785 record
.ExceptionAddress
= (void *)orig_context
->Rip
;
2786 record
.NumberParameters
= 0;
2790 rec
->ExceptionFlags
|= EH_UNWINDING
| (end_frame
? 0 : EH_EXIT_UNWIND
);
2792 TRACE( "code=%x flags=%x end_frame=%lx target_ip=%lx rip=%016lx\n",
2793 rec
->ExceptionCode
, rec
->ExceptionFlags
, end_frame
, target_ip
, orig_context
->Rip
);
2794 TRACE(" rax=%016lx rbx=%016lx rcx=%016lx rdx=%016lx\n",
2795 orig_context
->Rax
, orig_context
->Rbx
, orig_context
->Rcx
, orig_context
->Rdx
);
2796 TRACE(" rsi=%016lx rdi=%016lx rbp=%016lx rsp=%016lx\n",
2797 orig_context
->Rsi
, orig_context
->Rdi
, orig_context
->Rbp
, orig_context
->Rsp
);
2798 TRACE(" r8=%016lx r9=%016lx r10=%016lx r11=%016lx\n",
2799 orig_context
->R8
, orig_context
->R9
, orig_context
->R10
, orig_context
->R11
);
2800 TRACE(" r12=%016lx r13=%016lx r14=%016lx r15=%016lx\n",
2801 orig_context
->R12
, orig_context
->R13
, orig_context
->R14
, orig_context
->R15
);
2803 context
= *orig_context
;
2804 dispatch
.EstablisherFrame
= context
.Rsp
;
2805 dispatch
.TargetIp
= target_ip
;
2806 dispatch
.ContextRecord
= &context
;
2807 dispatch
.HistoryTable
= table
;
2809 while (dispatch
.EstablisherFrame
!= end_frame
)
2811 new_context
= context
;
2813 /* FIXME: should use the history table to make things faster */
2816 dispatch
.ImageBase
= 0;
2817 dispatch
.ScopeIndex
= 0; /* FIXME */
2819 /* first look for PE exception information */
2821 if (!LdrFindEntryForAddress( (void *)context
.Rip
, &module
))
2823 RUNTIME_FUNCTION
*dir
;
2825 dispatch
.ImageBase
= (ULONG64
)module
->BaseAddress
;
2826 if ((dir
= RtlImageDirectoryEntryToData( module
->BaseAddress
, TRUE
,
2827 IMAGE_DIRECTORY_ENTRY_EXCEPTION
, &size
)))
2829 if ((dispatch
.FunctionEntry
= find_function_info( context
.Rip
, module
->BaseAddress
,
2832 dispatch
.LanguageHandler
= RtlVirtualUnwind( UNW_FLAG_UHANDLER
, dispatch
.ImageBase
,
2833 context
.Rip
, dispatch
.FunctionEntry
,
2834 &new_context
, &dispatch
.HandlerData
,
2835 &dispatch
.EstablisherFrame
, NULL
);
2839 else if (!(module
->Flags
& LDR_WINE_INTERNAL
))
2840 WARN( "exception data not found in %s\n", debugstr_w(module
->BaseDllName
.Buffer
) );
2843 /* then look for host system exception information */
2845 if (!module
|| (module
->Flags
& LDR_WINE_INTERNAL
))
2847 struct dwarf_eh_bases bases
;
2848 const struct dwarf_fde
*fde
= _Unwind_Find_FDE( (void *)(context
.Rip
- 1), &bases
);
2852 dispatch
.FunctionEntry
= NULL
;
2853 status
= dwarf_virtual_unwind( context
.Rip
, &dispatch
.EstablisherFrame
, &new_context
, fde
,
2854 &bases
, &dispatch
.LanguageHandler
, &dispatch
.HandlerData
);
2855 if (status
!= STATUS_SUCCESS
) raise_status( status
, rec
);
2856 if (dispatch
.LanguageHandler
&& !module
)
2858 FIXME( "calling personality routine in system library not supported yet\n" );
2859 dispatch
.LanguageHandler
= NULL
;
2865 /* no exception information, treat as a leaf function */
2867 new_context
.Rip
= *(ULONG64
*)context
.Rsp
;
2868 new_context
.Rsp
= context
.Rsp
+ sizeof(ULONG64
);
2869 dispatch
.EstablisherFrame
= new_context
.Rsp
;
2870 dispatch
.LanguageHandler
= NULL
;
2873 if (!dispatch
.EstablisherFrame
) break;
2875 if (is_inside_signal_stack( (void *)dispatch
.EstablisherFrame
))
2877 TRACE( "frame %lx is inside signal stack (%p-%p)\n", dispatch
.EstablisherFrame
,
2878 get_signal_stack(), (char *)get_signal_stack() + signal_stack_size
);
2879 context
= new_context
;
2883 if ((dispatch
.EstablisherFrame
& 7) ||
2884 dispatch
.EstablisherFrame
< (ULONG64
)NtCurrentTeb()->Tib
.StackLimit
||
2885 dispatch
.EstablisherFrame
> (ULONG64
)NtCurrentTeb()->Tib
.StackBase
)
2887 ERR( "invalid frame %lx (%p-%p)\n", dispatch
.EstablisherFrame
,
2888 NtCurrentTeb()->Tib
.StackLimit
, NtCurrentTeb()->Tib
.StackBase
);
2889 rec
->ExceptionFlags
|= EH_STACK_INVALID
;
2893 if (dispatch
.LanguageHandler
)
2895 if (end_frame
&& (dispatch
.EstablisherFrame
> end_frame
))
2897 ERR( "invalid end frame %lx/%lx\n", dispatch
.EstablisherFrame
, end_frame
);
2898 raise_status( STATUS_INVALID_UNWIND_TARGET
, rec
);
2900 call_unwind_handler( rec
, &dispatch
);
2902 else /* hack: call builtin handlers registered in the tib list */
2904 while ((ULONG64
)teb_frame
< new_context
.Rsp
&& (ULONG64
)teb_frame
< end_frame
)
2906 TRACE( "found builtin frame %p handler %p\n", teb_frame
, teb_frame
->Handler
);
2907 dispatch
.EstablisherFrame
= (ULONG64
)teb_frame
;
2908 call_teb_unwind_handler( rec
, &dispatch
, teb_frame
);
2909 teb_frame
= __wine_pop_frame( teb_frame
);
2911 if ((ULONG64
)teb_frame
== end_frame
&& end_frame
< new_context
.Rsp
) break;
2912 dispatch
.EstablisherFrame
= new_context
.Rsp
;
2915 context
= new_context
;
2917 context
.Rax
= retval
;
2918 context
.Rip
= target_ip
;
2919 TRACE( "returning to %lx stack %lx\n", context
.Rip
, context
.Rsp
);
2920 set_cpu_context( &context
);
2924 /*******************************************************************
2925 * RtlUnwind (NTDLL.@)
2927 void WINAPI
__regs_RtlUnwind( ULONG64 frame
, ULONG64 target_ip
, EXCEPTION_RECORD
*rec
,
2928 ULONG64 retval
, CONTEXT
*context
)
2930 RtlUnwindEx( frame
, target_ip
, rec
, retval
, context
, NULL
);
2932 DEFINE_REGS_ENTRYPOINT( RtlUnwind
, 4 )
2935 /*******************************************************************
2936 * __C_specific_handler (NTDLL.@)
2938 EXCEPTION_DISPOSITION WINAPI
__C_specific_handler( EXCEPTION_RECORD
*rec
,
2941 struct _DISPATCHER_CONTEXT
*dispatch
)
2943 SCOPE_TABLE
*table
= dispatch
->HandlerData
;
2946 TRACE( "%p %lx %p %p\n", rec
, frame
, context
, dispatch
);
2947 if (TRACE_ON(seh
)) dump_scope_table( dispatch
->ImageBase
, table
);
2949 if (rec
->ExceptionFlags
& (EH_UNWINDING
| EH_EXIT_UNWIND
)) /* FIXME */
2950 return ExceptionContinueSearch
;
2952 for (i
= 0; i
< table
->Count
; i
++)
2954 if (context
->Rip
>= dispatch
->ImageBase
+ table
->ScopeRecord
[i
].BeginAddress
&&
2955 context
->Rip
< dispatch
->ImageBase
+ table
->ScopeRecord
[i
].EndAddress
)
2957 if (!table
->ScopeRecord
[i
].JumpTarget
) continue;
2958 if (table
->ScopeRecord
[i
].HandlerAddress
!= EXCEPTION_EXECUTE_HANDLER
)
2960 EXCEPTION_POINTERS ptrs
;
2961 PC_LANGUAGE_EXCEPTION_HANDLER filter
;
2963 filter
= (PC_LANGUAGE_EXCEPTION_HANDLER
)(dispatch
->ImageBase
+ table
->ScopeRecord
[i
].HandlerAddress
);
2964 ptrs
.ExceptionRecord
= rec
;
2965 ptrs
.ContextRecord
= context
;
2966 TRACE( "calling filter %p ptrs %p frame %lx\n", filter
, &ptrs
, frame
);
2967 switch (filter( &ptrs
, frame
))
2969 case EXCEPTION_EXECUTE_HANDLER
:
2971 case EXCEPTION_CONTINUE_SEARCH
:
2973 case EXCEPTION_CONTINUE_EXECUTION
:
2974 return ExceptionContinueExecution
;
2977 TRACE( "unwinding to target %lx\n", dispatch
->ImageBase
+ table
->ScopeRecord
[i
].JumpTarget
);
2978 RtlUnwindEx( frame
, dispatch
->ImageBase
+ table
->ScopeRecord
[i
].JumpTarget
,
2979 rec
, 0, context
, dispatch
->HistoryTable
);
2982 return ExceptionContinueSearch
;
2986 /*******************************************************************
2987 * NtRaiseException (NTDLL.@)
2989 NTSTATUS WINAPI
NtRaiseException( EXCEPTION_RECORD
*rec
, CONTEXT
*context
, BOOL first_chance
)
2991 NTSTATUS status
= raise_exception( rec
, context
, first_chance
);
2992 if (status
== STATUS_SUCCESS
) NtSetContextThread( GetCurrentThread(), context
);
2997 /***********************************************************************
2998 * RtlRaiseException (NTDLL.@)
3000 void WINAPI
__regs_RtlRaiseException( EXCEPTION_RECORD
*rec
, CONTEXT
*context
)
3004 rec
->ExceptionAddress
= (void *)context
->Rip
;
3005 status
= raise_exception( rec
, context
, TRUE
);
3006 if (status
!= STATUS_SUCCESS
) raise_status( status
, rec
);
3008 DEFINE_REGS_ENTRYPOINT( RtlRaiseException
, 1 )
3011 /*************************************************************************
3012 * RtlCaptureStackBackTrace (NTDLL.@)
3014 USHORT WINAPI
RtlCaptureStackBackTrace( ULONG skip
, ULONG count
, PVOID
*buffer
, ULONG
*hash
)
3016 FIXME( "(%d, %d, %p, %p) stub!\n", skip
, count
, buffer
, hash
);
3021 /***********************************************************************
3024 void call_thread_func( LPTHREAD_START_ROUTINE entry
, void *arg
, void *frame
)
3026 ntdll_get_thread_data()->exit_frame
= frame
;
3029 RtlExitUserThread( entry( arg
));
3031 __EXCEPT(unhandled_exception_filter
)
3033 NtTerminateThread( GetCurrentThread(), GetExceptionCode() );
3036 abort(); /* should not be reached */
3039 extern void DECLSPEC_NORETURN
call_thread_entry_point( LPTHREAD_START_ROUTINE entry
, void *arg
);
3040 __ASM_GLOBAL_FUNC( call_thread_entry_point
,
3042 __ASM_CFI(".cfi_adjust_cfa_offset 56\n\t")
3043 "movq %rbp,48(%rsp)\n\t"
3044 __ASM_CFI(".cfi_rel_offset %rbp,48\n\t")
3045 "movq %rbx,40(%rsp)\n\t"
3046 __ASM_CFI(".cfi_rel_offset %rbx,40\n\t")
3047 "movq %r12,32(%rsp)\n\t"
3048 __ASM_CFI(".cfi_rel_offset %r12,32\n\t")
3049 "movq %r13,24(%rsp)\n\t"
3050 __ASM_CFI(".cfi_rel_offset %r13,24\n\t")
3051 "movq %r14,16(%rsp)\n\t"
3052 __ASM_CFI(".cfi_rel_offset %r14,16\n\t")
3053 "movq %r15,8(%rsp)\n\t"
3054 __ASM_CFI(".cfi_rel_offset %r15,8\n\t")
3055 "movq %rsp,%rdx\n\t"
3056 "call " __ASM_NAME("call_thread_func") );
3058 extern void DECLSPEC_NORETURN
call_thread_exit_func( int status
, void (*func
)(int), void *frame
);
3059 __ASM_GLOBAL_FUNC( call_thread_exit_func
,
3060 "movq %rdx,%rsp\n\t"
3061 __ASM_CFI(".cfi_adjust_cfa_offset 56\n\t")
3062 __ASM_CFI(".cfi_rel_offset %rbp,48\n\t")
3063 __ASM_CFI(".cfi_rel_offset %rbx,40\n\t")
3064 __ASM_CFI(".cfi_rel_offset %r12,32\n\t")
3065 __ASM_CFI(".cfi_rel_offset %r13,24\n\t")
3066 __ASM_CFI(".cfi_rel_offset %r14,16\n\t")
3067 __ASM_CFI(".cfi_rel_offset %r15,8\n\t")
3070 /***********************************************************************
3071 * RtlExitUserThread (NTDLL.@)
3073 void WINAPI
RtlExitUserThread( ULONG status
)
3075 if (!ntdll_get_thread_data()->exit_frame
) exit_thread( status
);
3076 call_thread_exit_func( status
, exit_thread
, ntdll_get_thread_data()->exit_frame
);
3079 /***********************************************************************
3082 void abort_thread( int status
)
3084 if (!ntdll_get_thread_data()->exit_frame
) terminate_thread( status
);
3085 call_thread_exit_func( status
, terminate_thread
, ntdll_get_thread_data()->exit_frame
);
3088 /**********************************************************************
3089 * __wine_enter_vm86 (NTDLL.@)
3091 void __wine_enter_vm86( CONTEXT
*context
)
3093 MESSAGE("vm86 mode not supported on this platform\n");
3096 /**********************************************************************
3097 * DbgBreakPoint (NTDLL.@)
3099 __ASM_STDCALL_FUNC( DbgBreakPoint
, 0, "int $3; ret")
3101 /**********************************************************************
3102 * DbgUserBreakPoint (NTDLL.@)
3104 __ASM_STDCALL_FUNC( DbgUserBreakPoint
, 0, "int $3; ret")
3106 #endif /* __x86_64__ */