ReactOS 0.4.15-dev-8109-gd7be748
rtcapi.c
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1/*
2 * PROJECT: MSVC runtime check support library
3 * LICENSE: BSD - See COPYING.ARM in the top level directory
4 * PURPOSE: Provides support functions for MSVC runtime checks
5 * PROGRAMMER: Timo Kreuzer (timo.kreuzer@reactos.org)
6 */
7
8#include <rtcapi.h>
9
10#if defined(_M_IX86)
11#pragma comment(linker, "/alternatename:__CRT_RTC_INITW=__CRT_RTC_INITW0")
12#elif defined(_M_IA64) || defined(_M_AMD64) || defined(_M_ARM) || defined(_M_ARM64)
13#pragma comment(linker, "/alternatename:_CRT_RTC_INITW=_CRT_RTC_INITW0")
14#else
15#error Unsupported platform
16#endif
17
18// Provide a fallback memset for libraries like kbdrost.dll
19#if defined(_M_ARM) || defined(_M_ARM64)
20void* __cdecl memset_fallback(void* src, int val, size_t count)
21{
22 char *char_src = (char *)src;
23 while(count > 0)
24 {
25 *char_src = val;
26 char_src++;
27 count--;
28 }
29 return src;
30}
31#pragma comment(linker, "/alternatename:memset=memset_fallback")
32#pragma comment(linker, "/alternatename:__RTC_memset=memset_fallback")
33#endif
34
35int
38 int errType,
39 const wchar_t *file,
40 int line,
41 const wchar_t *module,
42 const wchar_t *format,
43 ...)
44{
45 /* Simple fallback function */
47 return 0;
48}
49
51
52/*
53 Default CRT RTC init, if we don't link to CRT
54*/
58 void *_Res0,
59 void **_Res1,
60 int _Res2,
61 int _Res3,
62 int _Res4)
63{
65}
66
67void
70{
71 static char initialized = 0;
72 _RTC_error_fnW errorFunc;
73
74 if (!initialized)
75 {
76 errorFunc = _CRT_RTC_INITW(0, 0, 0, 1, 0);
77 _RTC_SetErrorFuncW(errorFunc);
78 initialized = 1;
79 }
80}
81
82void
85{
87}
88
89void
92{
93 /* Usually this function would walk an array of function pointers and call
94 each of these, like done with global ctors, but since these are currently
95 only _RTC_InitBase, we simply call that function once. */
97}
98
99void
102 void* retaddr,
103 int errnum)
104{
105 _RTC_pErrorFuncW(errnum,
106 L"unknown file",
107 -1,
108 L"unknown module",
109 L"Invalid stack pointer value caught at %p, error %d\n",
110 retaddr,
111 errnum);
112}
113
114void
117 const char *_Varname)
118{
120 L"unknown file",
121 -1,
122 L"unknown module",
123 L"Use of uninitialized variable %S!\n",
124 _Varname);
125}
126
127void
130 void *_Esp,
131 _RTC_framedesc *_Fd)
132{
133 int i, *guard1, *guard2;
134
135 /* Loop all variables in the descriptor */
136 for (i = 0; i < _Fd->varCount; i++)
137 {
138 /* Get the 2 guards below and above the variable */
139 guard1 = (int*)((char*)_Esp + _Fd->variables[i].addr - sizeof(*guard1));
140 guard2 = (int*)((char*)_Esp + _Fd->variables[i].addr +_Fd->variables[i].size);
141
142 /* Check if they contain the guard bytes */
143 if ((*guard1 != 0xCCCCCCCC) || (*guard2 != 0xCCCCCCCC))
144 {
146 L"unknown file",
147 -1,
148 L"unknown module",
149 L"Stack corruption near '%s'\n",
150 _Fd->variables[i].name);
151 }
152 }
153}
154
155void
158 void *_Esp,
159 _RTC_framedesc *_Fd,
160 _RTC_ALLOCA_NODE *_AllocaList)
161{
163 int *guard;
164
165 /* Process normal variables */
166 _RTC_CheckStackVars(_Esp, _Fd);
167
168 /* Process the alloca list */
169 for (current = _AllocaList; current != 0; current = current->next)
170 {
171 /* Get the upper guard */
172 guard = (int*)((char*)current + current->allocaSize - sizeof(*guard));
173
174 /* Check if all guard locations are still ok */
175 if ((current->guard1 != 0xCCCCCCCC) ||
176 (current->guard2[0] != 0xCCCCCCCC) ||
177 (current->guard2[1] != 0xCCCCCCCC) ||
178 (current->guard2[2] != 0xCCCCCCCC) ||
179 (*guard != 0xCCCCCCCC))
180 {
182 L"unknown file",
183 -1,
184 L"unknown module",
185 L"Stack corruption in alloca frame\n");
186 }
187 }
188}
189
190void
193 _RTC_ALLOCA_NODE *_PAllocaBase,
194 size_t _CbSize,
195 _RTC_ALLOCA_NODE **_PAllocaInfoList)
196{
197 unsigned long i;
198
199 /* Check if we got any allocation */
200 if ((_PAllocaBase != 0) &&
201 (_CbSize != 0) &&
202 (_PAllocaInfoList != 0))
203 {
204 /* Mark the whole range */
205 char *guard = (char*)_PAllocaBase;
206 for (i = 0; i < _CbSize; i++)
207 {
208 guard[i] = 0xCC;
209 }
210
211 /* Initialize the alloca base frame */
212 _PAllocaBase->allocaSize = _CbSize;
213
214 /* Insert this frame into the alloca list */
215 _PAllocaBase->next = *_PAllocaInfoList;
216 *_PAllocaInfoList = _PAllocaBase;
217 }
218}
219
#define __cdecl
Definition: accygwin.h:79
GLuint GLuint GLsizei count
Definition: gl.h:1545
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: gl.h:1546
GLenum src
Definition: glext.h:6340
GLuint GLfloat * val
Definition: glext.h:7180
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint i
Definition: glfuncs.h:248
void __cdecl __debugbreak(void)
Definition: intrin_ppc.h:698
struct task_struct * current
Definition: linux.c:32
#define __fastcall
Definition: sync.c:38
#define L(x)
Definition: ntvdm.h:50
void __cdecl _RTC_UninitUse(const char *_Varname)
Definition: rtcapi.c:116
_RTC_error_fnW __cdecl _CRT_RTC_INITW0(void *_Res0, void **_Res1, int _Res2, int _Res3, int _Res4)
Definition: rtcapi.c:57
void __fastcall _RTC_AllocaHelper(_RTC_ALLOCA_NODE *_PAllocaBase, size_t _CbSize, _RTC_ALLOCA_NODE **_PAllocaInfoList)
Definition: rtcapi.c:192
int __cdecl _RTC_DefaultErrorFuncW(int errType, const wchar_t *file, int line, const wchar_t *module, const wchar_t *format,...)
Definition: rtcapi.c:37
void __cdecl _RTC_Initialize(void)
Definition: rtcapi.c:91
void __fastcall _RTC_CheckStackVars(void *_Esp, _RTC_framedesc *_Fd)
Definition: rtcapi.c:129
_RTC_error_fnW _RTC_pErrorFuncW
Definition: rtcapi.c:50
void __cdecl _RTC_InitBase(void)
Definition: rtcapi.c:69
void __cdecl _RTC_Failure(void *retaddr, int errnum)
Definition: rtcapi.c:101
void __cdecl _RTC_Shutdown(void)
Definition: rtcapi.c:84
void __fastcall _RTC_CheckStackVars2(void *_Esp, _RTC_framedesc *_Fd, _RTC_ALLOCA_NODE *_AllocaList)
Definition: rtcapi.c:157
_RTC_error_fnW __cdecl _RTC_SetErrorFuncW(_RTC_error_fnW)
Definition: rtcuserapi.c:78
_RTC_error_fnW __cdecl _CRT_RTC_INITW(void *_Res0, void **_Res1, int _Res2, int _Res3, int _Res4)
Definition: mscmain.c:65
@ _RTC_CORRUPTED_ALLOCA
Definition: rtcapi.h:20
@ _RTC_UNINIT_LOCAL_USE
Definition: rtcapi.h:20
@ _RTC_CORRUPT_STACK
Definition: rtcapi.h:20
int(__cdecl * _RTC_error_fnW)(int, const wchar_t *, int, const wchar_t *, const wchar_t *,...)
Definition: rtcapi.h:27
struct _RTC_ALLOCA_NODE * next
Definition: rtcapi.h:54
size_t allocaSize
Definition: rtcapi.h:58
int varCount
Definition: rtcapi.h:46
_RTC_vardesc * variables
Definition: rtcapi.h:47
char * name
Definition: rtcapi.h:42
int size
Definition: rtcapi.h:41
int addr
Definition: rtcapi.h:40
Definition: fci.c:127
Definition: parser.c:49
static BOOL initialized
Definition: syslog.c:39