gecko-dev/tools/coverity/model.cpp

129 строки
3.3 KiB
C++

/*
Coverity model file in order to avoid false-positive
*/
#define NULL (void *)0
typedef unsigned char jsbytecode;
typedef unsigned short uint16_t;
typedef unsigned int uint32_t;
typedef unsigned int int32_t;
typedef unsigned char uint8_t;
static const uint16_t CHUNK_HEAD_SIZE = 8;
void assert(bool expr) {
if (!expr) {
__coverity_panic__();
}
}
#define ERREXIT(cinfo, err) __coverity_panic__();
void MOZ_ASSUME_UNREACHABLE(char * str) {
__coverity_panic__();
}
static void MOZ_ReportAssertionFailure(const char* aStr, const char* aFilename,
int aLine) {
__coverity_panic__();
}
static void MOZ_ReportCrash(const char* aStr, const char* aFilename,
int aLine) {
__coverity_panic__();
}
#define MOZ_ASSERT(expr, msg) assert(!!(expr))
#define MOZ_ASSERT(expr) assert(!!(expr))
#define NS_ASSERTION(expr, msg) assert(!!(expr))
#define PORT_Assert(expr) assert(!!(expr))
#define PR_ASSERT(expr) assert(!!(expr))
int GET_JUMP_OFFSET(jsbytecode* pc) {
__coverity_tainted_data_sanitize__(&pc[1]);
__coverity_tainted_data_sanitize__(&pc[2]);
__coverity_tainted_data_sanitize__(&pc[3]);
__coverity_tainted_data_sanitize__(&pc[4]);
return 0;
}
// Data sanity checkers
#define XPT_SWAB16(data) __coverity_tainted_data_sanitize__(&data)
#define XPT_SWAB32(data) __coverity_tainted_data_sanitize__(&data)
static unsigned GET_UINT24(const jsbytecode* pc) {
__coverity_tainted_data_sanitize__(static_cast<void*>(pc));
//return unsigned((pc[1] << 16) | (pc[2] << 8) | pc[3]);
return 0;
}
class HeaderParser {
private:
class ChunkHeader {
uint8_t mRaw[CHUNK_HEAD_SIZE];
HeaderParser::ChunkHeader::ChunkSize() const {
__coverity_tainted_data_sanitize__(static_cast<void*>(&mRaw[4]));
__coverity_tainted_data_sanitize__(static_cast<void*>(&mRaw[5]));
__coverity_tainted_data_sanitize__(static_cast<void*>(&mRaw[6]));
__coverity_tainted_data_sanitize__(static_cast<void*>(&mRaw[7]));
return ((mRaw[7] << 24) | (mRaw[6] << 16) | (mRaw[5] << 8) | (mRaw[4]));
}
};
};
void NS_DebugBreak(uint32_t aSeverity, const char* aStr, const char* aExpr,
const char* aFile, int32_t aLine) {
__coverity_panic__();
}
static inline void Swap(uint32_t* value) {
__coverity_tainted_data_sanitize__(static_cast<void*>(&value));
*value = (*value >> 24) |
((*value >> 8) & 0x0000ff00) |
((*value << 8) & 0x00ff0000) |
(*value << 24);
}
static uint32_t xtolong (const uint8_t *ll) {
__coverity_tainted_data_sanitize__(static_cast<void*>(&ll[0]));
__coverity_tainted_data_sanitize__(static_cast<void*>(&ll[1]));
__coverity_tainted_data_sanitize__(static_cast<void*>(&ll[2]));
__coverity_tainted_data_sanitize__(static_cast<void*>(&ll[3]));
return (uint32_t)( (ll [0] << 0) |
(ll [1] << 8) |
(ll [2] << 16) |
(ll [3] << 24) );
}
class ByteReader {
public:
const uint8_t* Read(size_t aCount);
uint32_t ReadU24() {
const uint8_t *ptr = Read(3);
if (!ptr) {
MOZ_ASSERT(false);
return 0;
}
__coverity_tainted_data_sanitize__(static_cast<void*>(&ptr[0]));
__coverity_tainted_data_sanitize__(static_cast<void*>(&ptr[1]));
__coverity_tainted_data_sanitize__(static_cast<void*>(&ptr[2]));
return ptr[0] << 16 | ptr[1] << 8 | ptr[2];
}
};