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Reland 20968 - "Merge v8utils.* and utils.*"

>  BUG=none
>  R=mstarzinger@chromium.org
>  LOG=n
>
>  Review URL: https://codereview.chromium.org/256753002

BUG=none
LOG=n
TBR=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/250733004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@20984 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
jochen@chromium.org 2014-04-25 13:47:01 +00:00
parent 65a983a481
commit 8795d02bfd
19 changed files with 693 additions and 768 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/arm/lithium-codegen-arm.h
View File

@ -35,7 +35,7 @@
#include "lithium-codegen.h"
#include "safepoint-table.h"
#include "scopes.h"
#include "v8utils.h"
#include "utils.h"
namespace v8 {
namespace internal {

2
src/arm64/lithium-codegen-arm64.h
View File

@ -35,7 +35,7 @@
#include "lithium-codegen.h"
#include "safepoint-table.h"
#include "scopes.h"
#include "v8utils.h"
#include "utils.h"
namespace v8 {
namespace internal {

2
src/global-handles.h
View File

@ -33,7 +33,7 @@
#include "handles.h"
#include "list.h"
#include "v8utils.h"
#include "utils.h"
namespace v8 {
namespace internal {

2
src/heap.cc
View File

@ -49,9 +49,9 @@
#include "snapshot.h"
#include "store-buffer.h"
#include "utils/random-number-generator.h"
#include "utils.h"
#include "v8conversions.h"
#include "v8threads.h"
#include "v8utils.h"
#include "vm-state-inl.h"
#if V8_TARGET_ARCH_ARM && !V8_INTERPRETED_REGEXP
#include "regexp-macro-assembler.h"

2
src/hydrogen-instructions.h
View File

@ -37,8 +37,8 @@
#include "small-pointer-list.h"
#include "string-stream.h"
#include "unique.h"
#include "utils.h"
#include "v8conversions.h"
#include "v8utils.h"
#include "zone.h"
namespace v8 {

2
src/ia32/lithium-codegen-ia32.h
View File

@ -36,7 +36,7 @@
#include "lithium-codegen.h"
#include "safepoint-table.h"
#include "scopes.h"
#include "v8utils.h"
#include "utils.h"
namespace v8 {
namespace internal {

2
src/json-stringifier.h
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@ -29,7 +29,7 @@
#define V8_JSON_STRINGIFIER_H_
#include "v8.h"
#include "v8utils.h"
#include "utils.h"
#include "v8conversions.h"
namespace v8 {

2
src/mips/lithium-codegen-mips.h
View File

@ -34,7 +34,7 @@
#include "lithium-codegen.h"
#include "safepoint-table.h"
#include "scopes.h"
#include "v8utils.h"
#include "utils.h"
namespace v8 {
namespace internal {

2
src/spaces.h
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@ -33,7 +33,7 @@
#include "list.h"
#include "log.h"
#include "platform/mutex.h"
#include "v8utils.h"
#include "utils.h"
namespace v8 {
namespace internal {

2
src/sweeper-thread.h
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@ -31,7 +31,7 @@
#include "atomicops.h"
#include "flags.h"
#include "platform.h"
#include "v8utils.h"
#include "utils.h"
#include "spaces.h"

2
src/uri.h
View File

@ -31,7 +31,7 @@
#include "v8.h"
#include "string-search.h"
#include "v8utils.h"
#include "utils.h"
#include "v8conversions.h"
namespace v8 {

242
src/utils.cc
View File

@ -26,7 +26,10 @@
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include <stdarg.h>
#include "../include/v8stdint.h"
#include <sys/stat.h>
#include "v8.h"
#include "checks.h"
#include "platform.h"
#include "utils.h"
@ -97,4 +100,241 @@ char* SimpleStringBuilder::Finalize() {
}
void PrintF(const char* format, ...) {
va_list arguments;
va_start(arguments, format);
OS::VPrint(format, arguments);
va_end(arguments);
}
void PrintF(FILE* out, const char* format, ...) {
va_list arguments;
va_start(arguments, format);
OS::VFPrint(out, format, arguments);
va_end(arguments);
}
void PrintPID(const char* format, ...) {
OS::Print("[%d] ", OS::GetCurrentProcessId());
va_list arguments;
va_start(arguments, format);
OS::VPrint(format, arguments);
va_end(arguments);
}
void Flush(FILE* out) {
fflush(out);
}
char* ReadLine(const char* prompt) {
char* result = NULL;
char line_buf[256];
int offset = 0;
bool keep_going = true;
fprintf(stdout, "%s", prompt);
fflush(stdout);
while (keep_going) {
if (fgets(line_buf, sizeof(line_buf), stdin) == NULL) {
// fgets got an error. Just give up.
if (result != NULL) {
DeleteArray(result);
}
return NULL;
}
int len = StrLength(line_buf);
if (len > 1 &&
line_buf[len - 2] == '\\' &&
line_buf[len - 1] == '\n') {
// When we read a line that ends with a "\" we remove the escape and
// append the remainder.
line_buf[len - 2] = '\n';
line_buf[len - 1] = 0;
len -= 1;
} else if ((len > 0) && (line_buf[len - 1] == '\n')) {
// Since we read a new line we are done reading the line. This
// will exit the loop after copying this buffer into the result.
keep_going = false;
}
if (result == NULL) {
// Allocate the initial result and make room for the terminating '\0'
result = NewArray<char>(len + 1);
} else {
// Allocate a new result with enough room for the new addition.
int new_len = offset + len + 1;
char* new_result = NewArray<char>(new_len);
// Copy the existing input into the new array and set the new
// array as the result.
OS::MemCopy(new_result, result, offset * kCharSize);
DeleteArray(result);
result = new_result;
}
// Copy the newly read line into the result.
OS::MemCopy(result + offset, line_buf, len * kCharSize);
offset += len;
}
ASSERT(result != NULL);
result[offset] = '\0';
return result;
}
char* ReadCharsFromFile(FILE* file,
int* size,
int extra_space,
bool verbose,
const char* filename) {
if (file == NULL || fseek(file, 0, SEEK_END) != 0) {
if (verbose) {
OS::PrintError("Cannot read from file %s.\n", filename);
}
return NULL;
}
// Get the size of the file and rewind it.
*size = ftell(file);
rewind(file);
char* result = NewArray<char>(*size + extra_space);
for (int i = 0; i < *size && feof(file) == 0;) {
int read = static_cast<int>(fread(&result[i], 1, *size - i, file));
if (read != (*size - i) && ferror(file) != 0) {
fclose(file);
DeleteArray(result);
return NULL;
}
i += read;
}
return result;
}
char* ReadCharsFromFile(const char* filename,
int* size,
int extra_space,
bool verbose) {
FILE* file = OS::FOpen(filename, "rb");
char* result = ReadCharsFromFile(file, size, extra_space, verbose, filename);
if (file != NULL) fclose(file);
return result;
}
byte* ReadBytes(const char* filename, int* size, bool verbose) {
char* chars = ReadCharsFromFile(filename, size, 0, verbose);
return reinterpret_cast<byte*>(chars);
}
static Vector<const char> SetVectorContents(char* chars,
int size,
bool* exists) {
if (!chars) {
*exists = false;
return Vector<const char>::empty();
}
chars[size] = '\0';
*exists = true;
return Vector<const char>(chars, size);
}
Vector<const char> ReadFile(const char* filename,
bool* exists,
bool verbose) {
int size;
char* result = ReadCharsFromFile(filename, &size, 1, verbose);
return SetVectorContents(result, size, exists);
}
Vector<const char> ReadFile(FILE* file,
bool* exists,
bool verbose) {
int size;
char* result = ReadCharsFromFile(file, &size, 1, verbose, "");
return SetVectorContents(result, size, exists);
}
int WriteCharsToFile(const char* str, int size, FILE* f) {
int total = 0;
while (total < size) {
int write = static_cast<int>(fwrite(str, 1, size - total, f));
if (write == 0) {
return total;
}
total += write;
str += write;
}
return total;
}
int AppendChars(const char* filename,
const char* str,
int size,
bool verbose) {
FILE* f = OS::FOpen(filename, "ab");
if (f == NULL) {
if (verbose) {
OS::PrintError("Cannot open file %s for writing.\n", filename);
}
return 0;
}
int written = WriteCharsToFile(str, size, f);
fclose(f);
return written;
}
int WriteChars(const char* filename,
const char* str,
int size,
bool verbose) {
FILE* f = OS::FOpen(filename, "wb");
if (f == NULL) {
if (verbose) {
OS::PrintError("Cannot open file %s for writing.\n", filename);
}
return 0;
}
int written = WriteCharsToFile(str, size, f);
fclose(f);
return written;
}
int WriteBytes(const char* filename,
const byte* bytes,
int size,
bool verbose) {
const char* str = reinterpret_cast<const char*>(bytes);
return WriteChars(filename, str, size, verbose);
}
void StringBuilder::AddFormatted(const char* format, ...) {
va_list arguments;
va_start(arguments, format);
AddFormattedList(format, arguments);
va_end(arguments);
}
void StringBuilder::AddFormattedList(const char* format, va_list list) {
ASSERT(!is_finalized() && position_ <= buffer_.length());
int n = OS::VSNPrintF(buffer_ + position_, format, list);
if (n < 0 || n >= (buffer_.length() - position_)) {
position_ = buffer_.length();
} else {
position_ += n;
}
}
} } // namespace v8::internal

438
src/utils.h
View File

@ -1054,6 +1054,444 @@ class ContainerPointerWrapper {
C* container_;
};
// ----------------------------------------------------------------------------
// I/O support.
#if __GNUC__ >= 4
// On gcc we can ask the compiler to check the types of %d-style format
// specifiers and their associated arguments. TODO(erikcorry) fix this
// so it works on MacOSX.
#if defined(__MACH__) && defined(__APPLE__)
#define PRINTF_CHECKING
#define FPRINTF_CHECKING
#define PRINTF_METHOD_CHECKING
#define FPRINTF_METHOD_CHECKING
#else // MacOsX.
#define PRINTF_CHECKING __attribute__ ((format (printf, 1, 2)))
#define FPRINTF_CHECKING __attribute__ ((format (printf, 2, 3)))
#define PRINTF_METHOD_CHECKING __attribute__ ((format (printf, 2, 3)))
#define FPRINTF_METHOD_CHECKING __attribute__ ((format (printf, 3, 4)))
#endif
#else
#define PRINTF_CHECKING
#define FPRINTF_CHECKING
#define PRINTF_METHOD_CHECKING
#define FPRINTF_METHOD_CHECKING
#endif
// Our version of printf().
void PRINTF_CHECKING PrintF(const char* format, ...);
void FPRINTF_CHECKING PrintF(FILE* out, const char* format, ...);
// Prepends the current process ID to the output.
void PRINTF_CHECKING PrintPID(const char* format, ...);
// Our version of fflush.
void Flush(FILE* out);
inline void Flush() {
Flush(stdout);
}
// Read a line of characters after printing the prompt to stdout. The resulting
// char* needs to be disposed off with DeleteArray by the caller.
char* ReadLine(const char* prompt);
// Read and return the raw bytes in a file. the size of the buffer is returned
// in size.
// The returned buffer must be freed by the caller.
byte* ReadBytes(const char* filename, int* size, bool verbose = true);
// Append size chars from str to the file given by filename.
// The file is overwritten. Returns the number of chars written.
int AppendChars(const char* filename,
const char* str,
int size,
bool verbose = true);
// Write size chars from str to the file given by filename.
// The file is overwritten. Returns the number of chars written.
int WriteChars(const char* filename,
const char* str,
int size,
bool verbose = true);
// Write size bytes to the file given by filename.
// The file is overwritten. Returns the number of bytes written.
int WriteBytes(const char* filename,
const byte* bytes,
int size,
bool verbose = true);
// Write the C code
// const char* <varname> = "<str>";
// const int <varname>_len = <len>;
// to the file given by filename. Only the first len chars are written.
int WriteAsCFile(const char* filename, const char* varname,
const char* str, int size, bool verbose = true);
// ----------------------------------------------------------------------------
// Data structures
template <typename T>
inline Vector< Handle<Object> > HandleVector(v8::internal::Handle<T>* elms,
int length) {
return Vector< Handle<Object> >(
reinterpret_cast<v8::internal::Handle<Object>*>(elms), length);
}
// ----------------------------------------------------------------------------
// Memory
// Copies words from |src| to |dst|. The data spans must not overlap.
template <typename T>
inline void CopyWords(T* dst, const T* src, size_t num_words) {
STATIC_ASSERT(sizeof(T) == kPointerSize);
ASSERT(Min(dst, const_cast<T*>(src)) + num_words <=
Max(dst, const_cast<T*>(src)));
ASSERT(num_words > 0);
// Use block copying OS::MemCopy if the segment we're copying is
// enough to justify the extra call/setup overhead.
static const size_t kBlockCopyLimit = 16;
if (num_words < kBlockCopyLimit) {
do {
num_words--;
*dst++ = *src++;
} while (num_words > 0);
} else {
OS::MemCopy(dst, src, num_words * kPointerSize);
}
}
// Copies words from |src| to |dst|. No restrictions.
template <typename T>
inline void MoveWords(T* dst, const T* src, size_t num_words) {
STATIC_ASSERT(sizeof(T) == kPointerSize);
ASSERT(num_words > 0);
// Use block copying OS::MemCopy if the segment we're copying is
// enough to justify the extra call/setup overhead.
static const size_t kBlockCopyLimit = 16;
if (num_words < kBlockCopyLimit &&
((dst < src) || (dst >= (src + num_words * kPointerSize)))) {
T* end = dst + num_words;
do {
num_words--;
*dst++ = *src++;
} while (num_words > 0);
} else {
OS::MemMove(dst, src, num_words * kPointerSize);
}
}
// Copies data from |src| to |dst|. The data spans must not overlap.
template <typename T>
inline void CopyBytes(T* dst, const T* src, size_t num_bytes) {
STATIC_ASSERT(sizeof(T) == 1);
ASSERT(Min(dst, const_cast<T*>(src)) + num_bytes <=
Max(dst, const_cast<T*>(src)));
if (num_bytes == 0) return;
// Use block copying OS::MemCopy if the segment we're copying is
// enough to justify the extra call/setup overhead.
static const int kBlockCopyLimit = OS::kMinComplexMemCopy;
if (num_bytes < static_cast<size_t>(kBlockCopyLimit)) {
do {
num_bytes--;
*dst++ = *src++;
} while (num_bytes > 0);
} else {
OS::MemCopy(dst, src, num_bytes);
}
}
template <typename T, typename U>
inline void MemsetPointer(T** dest, U* value, int counter) {
#ifdef DEBUG
T* a = NULL;
U* b = NULL;
a = b; // Fake assignment to check assignability.
USE(a);
#endif // DEBUG
#if V8_HOST_ARCH_IA32
#define STOS "stosl"
#elif V8_HOST_ARCH_X64
#define STOS "stosq"
#endif
#if defined(__native_client__)
// This STOS sequence does not validate for x86_64 Native Client.
// Here we #undef STOS to force use of the slower C version.
// TODO(bradchen): Profile V8 and implement a faster REP STOS
// here if the profile indicates it matters.
#undef STOS
#endif
#if defined(MEMORY_SANITIZER)
// MemorySanitizer does not understand inline assembly.
#undef STOS
#endif
#if defined(__GNUC__) && defined(STOS)
asm volatile(
"cld;"
"rep ; " STOS
: "+&c" (counter), "+&D" (dest)
: "a" (value)
: "memory", "cc");
#else
for (int i = 0; i < counter; i++) {
dest[i] = value;
}
#endif
#undef STOS
}
// Simple wrapper that allows an ExternalString to refer to a
// Vector<const char>. Doesn't assume ownership of the data.
class AsciiStringAdapter: public v8::String::ExternalAsciiStringResource {
public:
explicit AsciiStringAdapter(Vector<const char> data) : data_(data) {}
virtual const char* data() const { return data_.start(); }
virtual size_t length() const { return data_.length(); }
private:
Vector<const char> data_;
};
// Simple support to read a file into a 0-terminated C-string.
// The returned buffer must be freed by the caller.
// On return, *exits tells whether the file existed.
Vector<const char> ReadFile(const char* filename,
bool* exists,
bool verbose = true);
Vector<const char> ReadFile(FILE* file,
bool* exists,
bool verbose = true);
template <typename sourcechar, typename sinkchar>
INLINE(static void CopyCharsUnsigned(sinkchar* dest,
const sourcechar* src,
int chars));
#if defined(V8_HOST_ARCH_ARM)
INLINE(void CopyCharsUnsigned(uint8_t* dest, const uint8_t* src, int chars));
INLINE(void CopyCharsUnsigned(uint16_t* dest, const uint8_t* src, int chars));
INLINE(void CopyCharsUnsigned(uint16_t* dest, const uint16_t* src, int chars));
#elif defined(V8_HOST_ARCH_MIPS)
INLINE(void CopyCharsUnsigned(uint8_t* dest, const uint8_t* src, int chars));
INLINE(void CopyCharsUnsigned(uint16_t* dest, const uint16_t* src, int chars));
#endif
// Copy from ASCII/16bit chars to ASCII/16bit chars.
template <typename sourcechar, typename sinkchar>
INLINE(void CopyChars(sinkchar* dest, const sourcechar* src, int chars));
template<typename sourcechar, typename sinkchar>
void CopyChars(sinkchar* dest, const sourcechar* src, int chars) {
ASSERT(sizeof(sourcechar) <= 2);
ASSERT(sizeof(sinkchar) <= 2);
if (sizeof(sinkchar) == 1) {
if (sizeof(sourcechar) == 1) {
CopyCharsUnsigned(reinterpret_cast<uint8_t*>(dest),
reinterpret_cast<const uint8_t*>(src),
chars);
} else {
CopyCharsUnsigned(reinterpret_cast<uint8_t*>(dest),
reinterpret_cast<const uint16_t*>(src),
chars);
}
} else {
if (sizeof(sourcechar) == 1) {
CopyCharsUnsigned(reinterpret_cast<uint16_t*>(dest),
reinterpret_cast<const uint8_t*>(src),
chars);
} else {
CopyCharsUnsigned(reinterpret_cast<uint16_t*>(dest),
reinterpret_cast<const uint16_t*>(src),
chars);
}
}
}
template <typename sourcechar, typename sinkchar>
void CopyCharsUnsigned(sinkchar* dest, const sourcechar* src, int chars) {
sinkchar* limit = dest + chars;
#ifdef V8_HOST_CAN_READ_UNALIGNED
if (sizeof(*dest) == sizeof(*src)) {
if (chars >= static_cast<int>(OS::kMinComplexMemCopy / sizeof(*dest))) {
OS::MemCopy(dest, src, chars * sizeof(*dest));
return;
}
// Number of characters in a uintptr_t.
static const int kStepSize = sizeof(uintptr_t) / sizeof(*dest); // NOLINT
ASSERT(dest + kStepSize > dest); // Check for overflow.
while (dest + kStepSize <= limit) {
*reinterpret_cast<uintptr_t*>(dest) =
*reinterpret_cast<const uintptr_t*>(src);
dest += kStepSize;
src += kStepSize;
}
}
#endif
while (dest < limit) {
*dest++ = static_cast<sinkchar>(*src++);
}
}
#if defined(V8_HOST_ARCH_ARM)
void CopyCharsUnsigned(uint8_t* dest, const uint8_t* src, int chars) {
switch (static_cast<unsigned>(chars)) {
case 0:
break;
case 1:
*dest = *src;
break;
case 2:
memcpy(dest, src, 2);
break;
case 3:
memcpy(dest, src, 3);
break;
case 4:
memcpy(dest, src, 4);
break;
case 5:
memcpy(dest, src, 5);
break;
case 6:
memcpy(dest, src, 6);
break;
case 7:
memcpy(dest, src, 7);
break;
case 8:
memcpy(dest, src, 8);
break;
case 9:
memcpy(dest, src, 9);
break;
case 10:
memcpy(dest, src, 10);
break;
case 11:
memcpy(dest, src, 11);
break;
case 12:
memcpy(dest, src, 12);
break;
case 13:
memcpy(dest, src, 13);
break;
case 14:
memcpy(dest, src, 14);
break;
case 15:
memcpy(dest, src, 15);
break;
default:
OS::MemCopy(dest, src, chars);
break;
}
}
void CopyCharsUnsigned(uint16_t* dest, const uint8_t* src, int chars) {
if (chars >= OS::kMinComplexConvertMemCopy) {
OS::MemCopyUint16Uint8(dest, src, chars);
} else {
OS::MemCopyUint16Uint8Wrapper(dest, src, chars);
}
}
void CopyCharsUnsigned(uint16_t* dest, const uint16_t* src, int chars) {
switch (static_cast<unsigned>(chars)) {
case 0:
break;
case 1:
*dest = *src;
break;
case 2:
memcpy(dest, src, 4);
break;
case 3:
memcpy(dest, src, 6);
break;
case 4:
memcpy(dest, src, 8);
break;
case 5:
memcpy(dest, src, 10);
break;
case 6:
memcpy(dest, src, 12);
break;
case 7:
memcpy(dest, src, 14);
break;
default:
OS::MemCopy(dest, src, chars * sizeof(*dest));
break;
}
}
#elif defined(V8_HOST_ARCH_MIPS)
void CopyCharsUnsigned(uint8_t* dest, const uint8_t* src, int chars) {
if (chars < OS::kMinComplexMemCopy) {
memcpy(dest, src, chars);
} else {
OS::MemCopy(dest, src, chars);
}
}
void CopyCharsUnsigned(uint16_t* dest, const uint16_t* src, int chars) {
if (chars < OS::kMinComplexMemCopy) {
memcpy(dest, src, chars * sizeof(*dest));
} else {
OS::MemCopy(dest, src, chars * sizeof(*dest));
}
}
#endif
class StringBuilder : public SimpleStringBuilder {
public:
explicit StringBuilder(int size) : SimpleStringBuilder(size) { }
StringBuilder(char* buffer, int size) : SimpleStringBuilder(buffer, size) { }
// Add formatted contents to the builder just like printf().
void AddFormatted(const char* format, ...);
// Add formatted contents like printf based on a va_list.
void AddFormattedList(const char* format, va_list list);
private:
DISALLOW_IMPLICIT_CONSTRUCTORS(StringBuilder);
};
} } // namespace v8::internal
#endif // V8_UTILS_H_

2
src/v8.h
View File

@ -55,7 +55,7 @@
#include "v8checks.h"
#include "allocation.h"
#include "assert-scope.h"
#include "v8utils.h"
#include "utils.h"
#include "flags.h"
// Objects & heap

276
src/v8utils.cc
View File

@ -1,276 +0,0 @@
// Copyright 2011 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include <stdarg.h>
#include "v8.h"
#include "platform.h"
#include "sys/stat.h"
namespace v8 {
namespace internal {
void PrintF(const char* format, ...) {
va_list arguments;
va_start(arguments, format);
OS::VPrint(format, arguments);
va_end(arguments);
}
void PrintF(FILE* out, const char* format, ...) {
va_list arguments;
va_start(arguments, format);
OS::VFPrint(out, format, arguments);
va_end(arguments);
}
void PrintPID(const char* format, ...) {
OS::Print("[%d] ", OS::GetCurrentProcessId());
va_list arguments;
va_start(arguments, format);
OS::VPrint(format, arguments);
va_end(arguments);
}
void Flush(FILE* out) {
fflush(out);
}
char* ReadLine(const char* prompt) {
char* result = NULL;
char line_buf[256];
int offset = 0;
bool keep_going = true;
fprintf(stdout, "%s", prompt);
fflush(stdout);
while (keep_going) {
if (fgets(line_buf, sizeof(line_buf), stdin) == NULL) {
// fgets got an error. Just give up.
if (result != NULL) {
DeleteArray(result);
}
return NULL;
}
int len = StrLength(line_buf);
if (len > 1 &&
line_buf[len - 2] == '\\' &&
line_buf[len - 1] == '\n') {
// When we read a line that ends with a "\" we remove the escape and
// append the remainder.
line_buf[len - 2] = '\n';
line_buf[len - 1] = 0;
len -= 1;
} else if ((len > 0) && (line_buf[len - 1] == '\n')) {
// Since we read a new line we are done reading the line. This
// will exit the loop after copying this buffer into the result.
keep_going = false;
}
if (result == NULL) {
// Allocate the initial result and make room for the terminating '\0'
result = NewArray<char>(len + 1);
} else {
// Allocate a new result with enough room for the new addition.
int new_len = offset + len + 1;
char* new_result = NewArray<char>(new_len);
// Copy the existing input into the new array and set the new
// array as the result.
OS::MemCopy(new_result, result, offset * kCharSize);
DeleteArray(result);
result = new_result;
}
// Copy the newly read line into the result.
OS::MemCopy(result + offset, line_buf, len * kCharSize);
offset += len;
}
ASSERT(result != NULL);
result[offset] = '\0';
return result;
}
char* ReadCharsFromFile(FILE* file,
int* size,
int extra_space,
bool verbose,
const char* filename) {
if (file == NULL || fseek(file, 0, SEEK_END) != 0) {
if (verbose) {
OS::PrintError("Cannot read from file %s.\n", filename);
}
return NULL;
}
// Get the size of the file and rewind it.
*size = ftell(file);
rewind(file);
char* result = NewArray<char>(*size + extra_space);
for (int i = 0; i < *size && feof(file) == 0;) {
int read = static_cast<int>(fread(&result[i], 1, *size - i, file));
if (read != (*size - i) && ferror(file) != 0) {
fclose(file);
DeleteArray(result);
return NULL;
}
i += read;
}
return result;
}
char* ReadCharsFromFile(const char* filename,
int* size,
int extra_space,
bool verbose) {
FILE* file = OS::FOpen(filename, "rb");
char* result = ReadCharsFromFile(file, size, extra_space, verbose, filename);
if (file != NULL) fclose(file);
return result;
}
byte* ReadBytes(const char* filename, int* size, bool verbose) {
char* chars = ReadCharsFromFile(filename, size, 0, verbose);
return reinterpret_cast<byte*>(chars);
}
static Vector<const char> SetVectorContents(char* chars,
int size,
bool* exists) {
if (!chars) {
*exists = false;
return Vector<const char>::empty();
}
chars[size] = '\0';
*exists = true;
return Vector<const char>(chars, size);
}
Vector<const char> ReadFile(const char* filename,
bool* exists,
bool verbose) {
int size;
char* result = ReadCharsFromFile(filename, &size, 1, verbose);
return SetVectorContents(result, size, exists);
}
Vector<const char> ReadFile(FILE* file,
bool* exists,
bool verbose) {
int size;
char* result = ReadCharsFromFile(file, &size, 1, verbose, "");
return SetVectorContents(result, size, exists);
}
int WriteCharsToFile(const char* str, int size, FILE* f) {
int total = 0;
while (total < size) {
int write = static_cast<int>(fwrite(str, 1, size - total, f));
if (write == 0) {
return total;
}
total += write;
str += write;
}
return total;
}
int AppendChars(const char* filename,
const char* str,
int size,
bool verbose) {
FILE* f = OS::FOpen(filename, "ab");
if (f == NULL) {
if (verbose) {
OS::PrintError("Cannot open file %s for writing.\n", filename);
}
return 0;
}
int written = WriteCharsToFile(str, size, f);
fclose(f);
return written;
}
int WriteChars(const char* filename,
const char* str,
int size,
bool verbose) {
FILE* f = OS::FOpen(filename, "wb");
if (f == NULL) {
if (verbose) {
OS::PrintError("Cannot open file %s for writing.\n", filename);
}
return 0;
}
int written = WriteCharsToFile(str, size, f);
fclose(f);
return written;
}
int WriteBytes(const char* filename,
const byte* bytes,
int size,
bool verbose) {
const char* str = reinterpret_cast<const char*>(bytes);
return WriteChars(filename, str, size, verbose);
}
void StringBuilder::AddFormatted(const char* format, ...) {
va_list arguments;
va_start(arguments, format);
AddFormattedList(format, arguments);
va_end(arguments);
}
void StringBuilder::AddFormattedList(const char* format, va_list list) {
ASSERT(!is_finalized() && position_ <= buffer_.length());
int n = OS::VSNPrintF(buffer_ + position_, format, list);
if (n < 0 || n >= (buffer_.length() - position_)) {
position_ = buffer_.length();
} else {
position_ += n;
}
}
} } // namespace v8::internal

475
src/v8utils.h
View File

@ -1,475 +0,0 @@
// Copyright 2012 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#ifndef V8_V8UTILS_H_
#define V8_V8UTILS_H_
#include "utils.h"
#include "platform.h" // For va_list on Solaris.
namespace v8 {
namespace internal {
// ----------------------------------------------------------------------------
// I/O support.
#if __GNUC__ >= 4
// On gcc we can ask the compiler to check the types of %d-style format
// specifiers and their associated arguments. TODO(erikcorry) fix this
// so it works on MacOSX.
#if defined(__MACH__) && defined(__APPLE__)
#define PRINTF_CHECKING
#define FPRINTF_CHECKING
#define PRINTF_METHOD_CHECKING
#define FPRINTF_METHOD_CHECKING
#else // MacOsX.
#define PRINTF_CHECKING __attribute__ ((format (printf, 1, 2)))
#define FPRINTF_CHECKING __attribute__ ((format (printf, 2, 3)))
#define PRINTF_METHOD_CHECKING __attribute__ ((format (printf, 2, 3)))
#define FPRINTF_METHOD_CHECKING __attribute__ ((format (printf, 3, 4)))
#endif
#else
#define PRINTF_CHECKING
#define FPRINTF_CHECKING
#define PRINTF_METHOD_CHECKING
#define FPRINTF_METHOD_CHECKING
#endif
// Our version of printf().
void PRINTF_CHECKING PrintF(const char* format, ...);
void FPRINTF_CHECKING PrintF(FILE* out, const char* format, ...);
// Prepends the current process ID to the output.
void PRINTF_CHECKING PrintPID(const char* format, ...);
// Our version of fflush.
void Flush(FILE* out);
inline void Flush() {
Flush(stdout);
}
// Read a line of characters after printing the prompt to stdout. The resulting
// char* needs to be disposed off with DeleteArray by the caller.
char* ReadLine(const char* prompt);
// Read and return the raw bytes in a file. the size of the buffer is returned
// in size.
// The returned buffer must be freed by the caller.
byte* ReadBytes(const char* filename, int* size, bool verbose = true);
// Append size chars from str to the file given by filename.
// The file is overwritten. Returns the number of chars written.
int AppendChars(const char* filename,
const char* str,
int size,
bool verbose = true);
// Write size chars from str to the file given by filename.
// The file is overwritten. Returns the number of chars written.
int WriteChars(const char* filename,
const char* str,
int size,
bool verbose = true);
// Write size bytes to the file given by filename.
// The file is overwritten. Returns the number of bytes written.
int WriteBytes(const char* filename,
const byte* bytes,
int size,
bool verbose = true);
// Write the C code
// const char* <varname> = "<str>";
// const int <varname>_len = <len>;
// to the file given by filename. Only the first len chars are written.
int WriteAsCFile(const char* filename, const char* varname,
const char* str, int size, bool verbose = true);
// ----------------------------------------------------------------------------
// Data structures
template <typename T>
inline Vector< Handle<Object> > HandleVector(v8::internal::Handle<T>* elms,
int length) {
return Vector< Handle<Object> >(
reinterpret_cast<v8::internal::Handle<Object>*>(elms), length);
}
// ----------------------------------------------------------------------------
// Memory
// Copies words from |src| to |dst|. The data spans must not overlap.
template <typename T>
inline void CopyWords(T* dst, const T* src, size_t num_words) {
STATIC_ASSERT(sizeof(T) == kPointerSize);
ASSERT(Min(dst, const_cast<T*>(src)) + num_words <=
Max(dst, const_cast<T*>(src)));
ASSERT(num_words > 0);
// Use block copying OS::MemCopy if the segment we're copying is
// enough to justify the extra call/setup overhead.
static const size_t kBlockCopyLimit = 16;
if (num_words < kBlockCopyLimit) {
do {
num_words--;
*dst++ = *src++;
} while (num_words > 0);
} else {
OS::MemCopy(dst, src, num_words * kPointerSize);
}
}
// Copies words from |src| to |dst|. No restrictions.
template <typename T>
inline void MoveWords(T* dst, const T* src, size_t num_words) {
STATIC_ASSERT(sizeof(T) == kPointerSize);
ASSERT(num_words > 0);
// Use block copying OS::MemCopy if the segment we're copying is
// enough to justify the extra call/setup overhead.
static const size_t kBlockCopyLimit = 16;
if (num_words < kBlockCopyLimit &&
((dst < src) || (dst >= (src + num_words * kPointerSize)))) {
T* end = dst + num_words;
do {
num_words--;
*dst++ = *src++;
} while (num_words > 0);
} else {
OS::MemMove(dst, src, num_words * kPointerSize);
}
}
// Copies data from |src| to |dst|. The data spans must not overlap.
template <typename T>
inline void CopyBytes(T* dst, const T* src, size_t num_bytes) {
STATIC_ASSERT(sizeof(T) == 1);
ASSERT(Min(dst, const_cast<T*>(src)) + num_bytes <=
Max(dst, const_cast<T*>(src)));
if (num_bytes == 0) return;
// Use block copying OS::MemCopy if the segment we're copying is
// enough to justify the extra call/setup overhead.
static const int kBlockCopyLimit = OS::kMinComplexMemCopy;
if (num_bytes < static_cast<size_t>(kBlockCopyLimit)) {
do {
num_bytes--;
*dst++ = *src++;
} while (num_bytes > 0);
} else {
OS::MemCopy(dst, src, num_bytes);
}
}
template <typename T, typename U>
inline void MemsetPointer(T** dest, U* value, int counter) {
#ifdef DEBUG
T* a = NULL;
U* b = NULL;
a = b; // Fake assignment to check assignability.
USE(a);
#endif // DEBUG
#if V8_HOST_ARCH_IA32
#define STOS "stosl"
#elif V8_HOST_ARCH_X64
#define STOS "stosq"
#endif
#if defined(__native_client__)
// This STOS sequence does not validate for x86_64 Native Client.
// Here we #undef STOS to force use of the slower C version.
// TODO(bradchen): Profile V8 and implement a faster REP STOS
// here if the profile indicates it matters.
#undef STOS
#endif
#if defined(MEMORY_SANITIZER)
// MemorySanitizer does not understand inline assembly.
#undef STOS
#endif
#if defined(__GNUC__) && defined(STOS)
asm volatile(
"cld;"
"rep ; " STOS
: "+&c" (counter), "+&D" (dest)
: "a" (value)
: "memory", "cc");
#else
for (int i = 0; i < counter; i++) {
dest[i] = value;
}
#endif
#undef STOS
}
// Simple wrapper that allows an ExternalString to refer to a
// Vector<const char>. Doesn't assume ownership of the data.
class AsciiStringAdapter: public v8::String::ExternalAsciiStringResource {
public:
explicit AsciiStringAdapter(Vector<const char> data) : data_(data) {}
virtual const char* data() const { return data_.start(); }
virtual size_t length() const { return data_.length(); }
private:
Vector<const char> data_;
};
// Simple support to read a file into a 0-terminated C-string.
// The returned buffer must be freed by the caller.
// On return, *exits tells whether the file existed.
Vector<const char> ReadFile(const char* filename,
bool* exists,
bool verbose = true);
Vector<const char> ReadFile(FILE* file,
bool* exists,
bool verbose = true);
template <typename sourcechar, typename sinkchar>
INLINE(static void CopyCharsUnsigned(sinkchar* dest,
const sourcechar* src,
int chars));
#if defined(V8_HOST_ARCH_ARM)
INLINE(void CopyCharsUnsigned(uint8_t* dest, const uint8_t* src, int chars));
INLINE(void CopyCharsUnsigned(uint16_t* dest, const uint8_t* src, int chars));
INLINE(void CopyCharsUnsigned(uint16_t* dest, const uint16_t* src, int chars));
#elif defined(V8_HOST_ARCH_MIPS)
INLINE(void CopyCharsUnsigned(uint8_t* dest, const uint8_t* src, int chars));
INLINE(void CopyCharsUnsigned(uint16_t* dest, const uint16_t* src, int chars));
#endif
// Copy from ASCII/16bit chars to ASCII/16bit chars.
template <typename sourcechar, typename sinkchar>
INLINE(void CopyChars(sinkchar* dest, const sourcechar* src, int chars));
template<typename sourcechar, typename sinkchar>
void CopyChars(sinkchar* dest, const sourcechar* src, int chars) {
ASSERT(sizeof(sourcechar) <= 2);
ASSERT(sizeof(sinkchar) <= 2);
if (sizeof(sinkchar) == 1) {
if (sizeof(sourcechar) == 1) {
CopyCharsUnsigned(reinterpret_cast<uint8_t*>(dest),
reinterpret_cast<const uint8_t*>(src),
chars);
} else {
CopyCharsUnsigned(reinterpret_cast<uint8_t*>(dest),
reinterpret_cast<const uint16_t*>(src),
chars);
}
} else {
if (sizeof(sourcechar) == 1) {
CopyCharsUnsigned(reinterpret_cast<uint16_t*>(dest),
reinterpret_cast<const uint8_t*>(src),
chars);
} else {
CopyCharsUnsigned(reinterpret_cast<uint16_t*>(dest),
reinterpret_cast<const uint16_t*>(src),
chars);
}
}
}
template <typename sourcechar, typename sinkchar>
void CopyCharsUnsigned(sinkchar* dest, const sourcechar* src, int chars) {
sinkchar* limit = dest + chars;
#ifdef V8_HOST_CAN_READ_UNALIGNED
if (sizeof(*dest) == sizeof(*src)) {
if (chars >= static_cast<int>(OS::kMinComplexMemCopy / sizeof(*dest))) {
OS::MemCopy(dest, src, chars * sizeof(*dest));
return;
}
// Number of characters in a uintptr_t.
static const int kStepSize = sizeof(uintptr_t) / sizeof(*dest); // NOLINT
ASSERT(dest + kStepSize > dest); // Check for overflow.
while (dest + kStepSize <= limit) {
*reinterpret_cast<uintptr_t*>(dest) =
*reinterpret_cast<const uintptr_t*>(src);
dest += kStepSize;
src += kStepSize;
}
}
#endif
while (dest < limit) {
*dest++ = static_cast<sinkchar>(*src++);
}
}
#if defined(V8_HOST_ARCH_ARM)
void CopyCharsUnsigned(uint8_t* dest, const uint8_t* src, int chars) {
switch (static_cast<unsigned>(chars)) {
case 0:
break;
case 1:
*dest = *src;
break;
case 2:
memcpy(dest, src, 2);
break;
case 3:
memcpy(dest, src, 3);
break;
case 4:
memcpy(dest, src, 4);
break;
case 5:
memcpy(dest, src, 5);
break;
case 6:
memcpy(dest, src, 6);
break;
case 7:
memcpy(dest, src, 7);
break;
case 8:
memcpy(dest, src, 8);
break;
case 9:
memcpy(dest, src, 9);
break;
case 10:
memcpy(dest, src, 10);
break;
case 11:
memcpy(dest, src, 11);
break;
case 12:
memcpy(dest, src, 12);
break;
case 13:
memcpy(dest, src, 13);
break;
case 14:
memcpy(dest, src, 14);
break;
case 15:
memcpy(dest, src, 15);
break;
default:
OS::MemCopy(dest, src, chars);
break;
}
}
void CopyCharsUnsigned(uint16_t* dest, const uint8_t* src, int chars) {
if (chars >= OS::kMinComplexConvertMemCopy) {
OS::MemCopyUint16Uint8(dest, src, chars);
} else {
OS::MemCopyUint16Uint8Wrapper(dest, src, chars);
}
}
void CopyCharsUnsigned(uint16_t* dest, const uint16_t* src, int chars) {
switch (static_cast<unsigned>(chars)) {
case 0:
break;
case 1:
*dest = *src;
break;
case 2:
memcpy(dest, src, 4);
break;
case 3:
memcpy(dest, src, 6);
break;
case 4:
memcpy(dest, src, 8);
break;
case 5:
memcpy(dest, src, 10);
break;
case 6:
memcpy(dest, src, 12);
break;
case 7:
memcpy(dest, src, 14);
break;
default:
OS::MemCopy(dest, src, chars * sizeof(*dest));
break;
}
}
#elif defined(V8_HOST_ARCH_MIPS)
void CopyCharsUnsigned(uint8_t* dest, const uint8_t* src, int chars) {
if (chars < OS::kMinComplexMemCopy) {
memcpy(dest, src, chars);
} else {
OS::MemCopy(dest, src, chars);
}
}
void CopyCharsUnsigned(uint16_t* dest, const uint16_t* src, int chars) {
if (chars < OS::kMinComplexMemCopy) {
memcpy(dest, src, chars * sizeof(*dest));
} else {
OS::MemCopy(dest, src, chars * sizeof(*dest));
}
}
#endif
class StringBuilder : public SimpleStringBuilder {
public:
explicit StringBuilder(int size) : SimpleStringBuilder(size) { }
StringBuilder(char* buffer, int size) : SimpleStringBuilder(buffer, size) { }
// Add formatted contents to the builder just like printf().
void AddFormatted(const char* format, ...);
// Add formatted contents like printf based on a va_list.
void AddFormattedList(const char* format, va_list list);
private:
DISALLOW_IMPLICIT_CONSTRUCTORS(StringBuilder);
};
} } // namespace v8::internal
#endif // V8_V8UTILS_H_

2
src/x64/lithium-codegen-x64.h
View File

@ -35,7 +35,7 @@
#include "lithium-codegen.h"
#include "safepoint-table.h"
#include "scopes.h"
#include "v8utils.h"
#include "utils.h"
#include "x64/lithium-gap-resolver-x64.h"
namespace v8 {

2
test/cctest/test-log.cc
View File

@ -39,8 +39,8 @@
#include "log-utils.h"
#include "cpu-profiler.h"
#include "natives.h"
#include "utils.h"
#include "v8threads.h"
#include "v8utils.h"
#include "cctest.h"
#include "vm-state-inl.h"

2
tools/gyp/v8.gyp
View File

@ -601,8 +601,6 @@
'../../src/v8memory.h',
'../../src/v8threads.cc',
'../../src/v8threads.h',
'../../src/v8utils.cc',
'../../src/v8utils.h',
'../../src/variables.cc',
'../../src/variables.h',
'../../src/vector.h',