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gecko-dev
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Bug 717762: Proliferate js_memcpy and PodCopy, take 2. (r=luke) 

--HG--
extra : rebase_source : 73083063f32036d037b34f0ec96d06192f2ae649
This commit is contained in:
Chris Leary 2012-01-17 14:32:36 -08:00
Родитель a553aae21f
Коммит c730c76fe6
30 изменённых файлов: 109 добавлений и 89 удалений
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2
js/src/ds/LifoAlloc.cpp
Просмотреть файл

@ -223,5 +223,5 @@ LifoAlloc::reallocUnaligned(void *origPtr, size_t origSize, size_t incr)
/* Otherwise, memcpy. */
size_t newSize = origSize + incr;
void *newPtr = allocUnaligned(newSize);
return newPtr ? memcpy(newPtr, origPtr, origSize) : NULL;
return newPtr ? js_memcpy(newPtr, origPtr, origSize) : NULL;
}

4
js/src/frontend/BytecodeEmitter.cpp
Просмотреть файл

@ -7053,8 +7053,8 @@ frontend::FinishTakingSrcNotes(JSContext *cx, BytecodeEmitter *bce, jssrcnote *n
mainCount = bce->main.noteCount;
totalCount = prologCount + mainCount;
if (prologCount)
memcpy(notes, bce->prolog.notes, SRCNOTE_SIZE(prologCount));
memcpy(notes + prologCount, bce->main.notes, SRCNOTE_SIZE(mainCount));
PodCopy(notes, bce->prolog.notes, prologCount);
PodCopy(notes + prologCount, bce->main.notes, mainCount);
SN_MAKE_TERMINATOR(&notes[totalCount]);
return true;

2
js/src/frontend/Parser.h
Просмотреть файл

@ -164,7 +164,7 @@ struct Parser : private AutoGCRooter
ParseNode *node = allocParseNode(sizeof(ParseNode));
if (!node)
return NULL;
memcpy(node, &other, sizeof(*node));
PodAssign(node, &other);
return node;
}

2
js/src/frontend/TokenStream.cpp
Просмотреть файл

@ -485,7 +485,7 @@ TokenStream::reportCompileErrorNumberVA(ParseNode *pn, uintN flags, uintN errorN
warning = false;
goto out;
}
memcpy(linechars, linebase, linelength * sizeof(jschar));
PodCopy(linechars, linebase, linelength);
linechars[linelength] = 0;
linebytes = DeflateString(cx, linechars, linelength);
if (!linebytes) {

4
js/src/jsapi-tests/testConservativeGC.cpp
Просмотреть файл

@ -8,7 +8,7 @@ BEGIN_TEST(testConservativeGC)
EVAL("({foo: 'bar'});", &v2);
CHECK(JSVAL_IS_OBJECT(v2));
char objCopy[sizeof(JSObject)];
memcpy(&objCopy, JSVAL_TO_OBJECT(v2), sizeof(JSObject));
js_memcpy(&objCopy, JSVAL_TO_OBJECT(v2), sizeof(JSObject));
jsval v3;
EVAL("String(Math.PI);", &v3);
@ -20,7 +20,7 @@ BEGIN_TEST(testConservativeGC)
CHECK(JSVAL_IS_OBJECT(tmp));
JSObject *obj2 = JSVAL_TO_OBJECT(tmp);
char obj2Copy[sizeof(JSObject)];
memcpy(&obj2Copy, obj2, sizeof(JSObject));
js_memcpy(&obj2Copy, obj2, sizeof(JSObject));
EVAL("String(Math.sqrt(3));", &tmp);
CHECK(JSVAL_IS_STRING(tmp));

4
js/src/jsapi-tests/testXDR.cpp
Просмотреть файл

@ -28,7 +28,7 @@ BEGIN_TEST(testXDR_bug506491)
CHECK(p);
void *frozen = JS_malloc(cx, nbytes);
CHECK(frozen);
memcpy(frozen, p, nbytes);
js_memcpy(frozen, p, nbytes);
JS_XDRDestroy(w);
// thaw
@ -68,7 +68,7 @@ BEGIN_TEST(testXDR_bug516827)
CHECK(p);
void *frozen = JS_malloc(cx, nbytes);
CHECK(frozen);
memcpy(frozen, p, nbytes);
js_memcpy(frozen, p, nbytes);
JS_XDRDestroy(w);
// thaw

26
js/src/jsapi.cpp
Просмотреть файл

@ -2204,15 +2204,12 @@ JS_updateMallocCounter(JSContext *cx, size_t nbytes)
JS_PUBLIC_API(char *)
JS_strdup(JSContext *cx, const char *s)
{
size_t n;
void *p;
AssertNoGC(cx);
n = strlen(s) + 1;
p = cx->malloc_(n);
size_t n = strlen(s) + 1;
void *p = cx->malloc_(n);
if (!p)
return NULL;
return (char *)memcpy(p, s, n);
return (char *)js_memcpy(p, s, n);
}
JS_PUBLIC_API(JSBool)
@ -2500,7 +2497,7 @@ JS_PrintTraceThingInfo(char *buf, size_t bufsize, JSTracer *trc, void *thing,
n = strlen(name);
if (n > bufsize - 1)
n = bufsize - 1;
memcpy(buf, name, n + 1);
js_memcpy(buf, name, n + 1);
buf += n;
bufsize -= n;
@ -2614,9 +2611,6 @@ DumpNotify(JSTracer *trc, void *thing, JSGCTraceKind kind)
JSDumpingTracer *dtrc;
JSContext *cx;
JSDHashEntryStub *entry;
JSHeapDumpNode *node;
const char *edgeName;
size_t edgeNameSize;
JS_ASSERT(trc->callback == DumpNotify);
dtrc = (JSDumpingTracer *)trc;
@ -2655,10 +2649,10 @@ DumpNotify(JSTracer *trc, void *thing, JSGCTraceKind kind)
entry->key = thing;
}
edgeName = JS_GetTraceEdgeName(&dtrc->base, dtrc->buffer, sizeof(dtrc->buffer));
edgeNameSize = strlen(edgeName) + 1;
const char *edgeName = JS_GetTraceEdgeName(&dtrc->base, dtrc->buffer, sizeof(dtrc->buffer));
size_t edgeNameSize = strlen(edgeName) + 1;
size_t bytes = offsetof(JSHeapDumpNode, edgeName) + edgeNameSize;
node = (JSHeapDumpNode *) OffTheBooks::malloc_(bytes);
JSHeapDumpNode *node = (JSHeapDumpNode *) OffTheBooks::malloc_(bytes);
if (!node) {
dtrc->ok = JS_FALSE;
return;
@ -2668,7 +2662,7 @@ DumpNotify(JSTracer *trc, void *thing, JSGCTraceKind kind)
node->kind = kind;
node->next = NULL;
node->parent = dtrc->parentNode;
memcpy(node->edgeName, edgeName, edgeNameSize);
js_memcpy(node->edgeName, edgeName, edgeNameSize);
JS_ASSERT(!*dtrc->lastNodep);
*dtrc->lastNodep = node;
@ -5484,7 +5478,7 @@ JS_New(JSContext *cx, JSObject *ctor, uintN argc, jsval *argv)
args.calleev().setObject(*ctor);
args.thisv().setNull();
memcpy(args.array(), argv, argc * sizeof(jsval));
PodCopy(args.array(), argv, argc);
if (!InvokeConstructor(cx, args))
return NULL;
@ -6049,7 +6043,7 @@ JSAutoStructuredCloneBuffer::copy(const uint64_t *srcData, size_t nbytes, uint32
if (!newData)
return false;
memcpy(newData, srcData, nbytes);
js_memcpy(newData, srcData, nbytes);
clear();
data_ = newData;

4
js/src/jsclone.cpp
Просмотреть файл

@ -219,7 +219,7 @@ SCInput::readArray(T *p, size_t nelems)
return eof();
if (sizeof(T) == 1) {
memcpy(p, point, nelems);
js_memcpy(p, point, nelems);
} else {
const T *q = (const T *) point;
const T *qend = q + nelems;
@ -329,7 +329,7 @@ SCOutput::writeArray(const T *p, size_t nelems)
T *q = (T *) &buf[start];
if (sizeof(T) == 1) {
memcpy(q, p, nelems);
js_memcpy(q, p, nelems);
} else {
const T *pend = p + nelems;
while (p != pend)

10
js/src/jscrashreport.cpp
Просмотреть файл

@ -106,7 +106,7 @@ GetStack(uint64_t *stack, uint64_t *stack_len, CrashRegisters *regs, char *buffe
#endif
#endif
memcpy(buffer, (void *)p, len);
js_memcpy(buffer, (void *)p, len);
return true;
}
@ -157,7 +157,7 @@ GetStack(uint64_t *stack, uint64_t *stack_len, CrashRegisters *regs, char *buffe
regs->ip = (uint64_t)context.uc_mcontext.gregs[REG_EIP];
#endif
memcpy(buffer, (void *)p, len);
js_memcpy(buffer, (void *)p, len);
return true;
}
@ -230,11 +230,11 @@ Ring::copyBytes(void *data, size_t size)
if (offset + size > bufferSize()) {
size_t first = bufferSize() - offset;
size_t second = size - first;
memcpy(&buffer[offset], data, first);
memcpy(buffer, (char *)data + first, second);
js_memcpy(&buffer[offset], data, first);
js_memcpy(buffer, (char *)data + first, second);
offset = second;
} else {
memcpy(&buffer[offset], data, size);
js_memcpy(&buffer[offset], data, size);
offset += size;
}
}

3
js/src/jsdbgapi.cpp
Просмотреть файл

@ -448,7 +448,8 @@ JS_GetFunctionLocalNameArray(JSContext *cx, JSFunction *fun, void **markp)
return NULL;
}
memcpy(names, localNames.begin(), localNames.length() * sizeof(uintptr_t));
JS_ASSERT(sizeof(*names) == sizeof(*localNames.begin()));
js_memcpy(names, localNames.begin(), localNames.length() * sizeof(*names));
return names;
}

2
js/src/jsdhash.cpp
Просмотреть файл

@ -169,7 +169,7 @@ JS_DHashMoveEntryStub(JSDHashTable *table,
const JSDHashEntryHdr *from,
JSDHashEntryHdr *to)
{
memcpy(to, from, table->entrySize);
js_memcpy(to, from, table->entrySize);
}
JS_PUBLIC_API(void)

2
js/src/jsdtoa.cpp
Просмотреть файл

@ -142,7 +142,7 @@ js_dtostr(DtoaState *state, char *buffer, size_t bufferSize, JSDToStrMode mode,
return NULL;
}
memcpy(buffer + 2, numBegin, nDigits);
js_memcpy(buffer + 2, numBegin, nDigits);
freedtoa(PASS_STATE numBegin);
numBegin = buffer + 2; /* +2 leaves space for sign and/or decimal point */
numEnd = numBegin + nDigits;

10
js/src/jsexn.cpp
Просмотреть файл

@ -203,7 +203,7 @@ CopyErrorReport(JSContext *cx, JSErrorReport *report)
for (i = 0; report->messageArgs[i]; ++i) {
copy->messageArgs[i] = (const jschar *)cursor;
argSize = JS_CHARS_SIZE(report->messageArgs[i]);
memcpy(cursor, report->messageArgs[i], argSize);
js_memcpy(cursor, report->messageArgs[i], argSize);
cursor += argSize;
}
copy->messageArgs[i] = NULL;
@ -212,13 +212,13 @@ CopyErrorReport(JSContext *cx, JSErrorReport *report)
if (report->ucmessage) {
copy->ucmessage = (const jschar *)cursor;
memcpy(cursor, report->ucmessage, ucmessageSize);
js_memcpy(cursor, report->ucmessage, ucmessageSize);
cursor += ucmessageSize;
}
if (report->uclinebuf) {
copy->uclinebuf = (const jschar *)cursor;
memcpy(cursor, report->uclinebuf, uclinebufSize);
js_memcpy(cursor, report->uclinebuf, uclinebufSize);
cursor += uclinebufSize;
if (report->uctokenptr) {
copy->uctokenptr = copy->uclinebuf + (report->uctokenptr -
@ -228,7 +228,7 @@ CopyErrorReport(JSContext *cx, JSErrorReport *report)
if (report->linebuf) {
copy->linebuf = (const char *)cursor;
memcpy(cursor, report->linebuf, linebufSize);
js_memcpy(cursor, report->linebuf, linebufSize);
cursor += linebufSize;
if (report->tokenptr) {
copy->tokenptr = copy->linebuf + (report->tokenptr -
@ -238,7 +238,7 @@ CopyErrorReport(JSContext *cx, JSErrorReport *report)
if (report->filename) {
copy->filename = (const char *)cursor;
memcpy(cursor, report->filename, filenameSize);
js_memcpy(cursor, report->filename, filenameSize);
}
JS_ASSERT(cursor + filenameSize == (uint8_t *)copy + mallocSize);

4
js/src/jsfun.cpp
Просмотреть файл

@ -1607,7 +1607,7 @@ js_fun_call(JSContext *cx, uintN argc, Value *vp)
/* Push fval, thisv, and the args. */
args.calleev() = fval;
args.thisv() = thisv;
memcpy(args.array(), argv, argc * sizeof *argv);
PodCopy(args.array(), argv, argc);
bool ok = Invoke(cx, args);
*vp = args.rval();
@ -1781,7 +1781,7 @@ CallOrConstructBoundFunction(JSContext *cx, uintN argc, Value *vp)
/* 15.3.4.5.1, 15.3.4.5.2 step 4. */
for (uintN i = 0; i < argslen; i++)
args[i] = fun->getBoundFunctionArgument(i);
memcpy(args.array() + argslen, vp + 2, argc * sizeof(Value));
PodCopy(args.array() + argslen, vp + 2, argc);
/* 15.3.4.5.1, 15.3.4.5.2 step 5. */
args.calleev().setObject(*target);

2
js/src/jsinfer.cpp
Просмотреть файл

@ -2128,7 +2128,7 @@ TypeCompartment::growPendingArray(JSContext *cx)
return false;
}
memcpy(newArray, pendingArray, pendingCount * sizeof(PendingWork));
PodCopy(newArray, pendingArray, pendingCount);
cx->free_(pendingArray);
pendingArray = newArray;

4
js/src/jsinterp.cpp
Просмотреть файл

@ -554,7 +554,7 @@ js::Invoke(JSContext *cx, const Value &thisv, const Value &fval, uintN argc, Val
args.calleev() = fval;
args.thisv() = thisv;
memcpy(args.array(), argv, argc * sizeof(Value));
PodCopy(args.array(), argv, argc);
if (args.thisv().isObject()) {
/*
@ -623,7 +623,7 @@ js::InvokeConstructor(JSContext *cx, const Value &fval, uintN argc, Value *argv,
args.calleev() = fval;
args.thisv().setMagic(JS_THIS_POISON);
memcpy(args.array(), argv, argc * sizeof(Value));
PodCopy(args.array(), argv, argc);
if (!InvokeConstructor(cx, args))
return false;

2
js/src/jsiter.cpp
Просмотреть файл

@ -41,8 +41,6 @@
/*
* JavaScript iterators.
*/
#include <string.h> /* for memcpy */
#include "mozilla/Util.h"
#include "jstypes.h"

8
js/src/jsnum.cpp
Просмотреть файл

@ -736,7 +736,7 @@ num_toLocaleString(JSContext *cx, uintN argc, Value *vp)
strcpy(tmpDest, rt->thousandsSeparator);
tmpDest += thousandsLength;
JS_ASSERT(tmpDest - buf + *tmpGroup <= buflen);
memcpy(tmpDest, tmpSrc, *tmpGroup);
js_memcpy(tmpDest, tmpSrc, *tmpGroup);
tmpDest += *tmpGroup;
tmpSrc += *tmpGroup;
if (--nrepeat < 0)
@ -978,15 +978,15 @@ InitRuntimeNumberState(JSRuntime *rt)
if (!storage)
return false;
memcpy(storage, thousandsSeparator, thousandsSeparatorSize);
js_memcpy(storage, thousandsSeparator, thousandsSeparatorSize);
rt->thousandsSeparator = storage;
storage += thousandsSeparatorSize;
memcpy(storage, decimalPoint, decimalPointSize);
js_memcpy(storage, decimalPoint, decimalPointSize);
rt->decimalSeparator = storage;
storage += decimalPointSize;
memcpy(storage, grouping, groupingSize);
js_memcpy(storage, grouping, groupingSize);
rt->numGrouping = grouping;
return true;
}

14
js/src/jsobj.cpp
Просмотреть файл

@ -3624,9 +3624,9 @@ JSObject::TradeGuts(JSContext *cx, JSObject *a, JSObject *b, TradeGutsReserved &
char tmp[tl::Max<sizeof(JSFunction), sizeof(JSObject_Slots16)>::result];
JS_ASSERT(size <= sizeof(tmp));
memcpy(tmp, a, size);
memcpy(a, b, size);
memcpy(b, tmp, size);
js_memcpy(tmp, a, size);
js_memcpy(a, b, size);
js_memcpy(b, tmp, size);
} else {
/*
* If the objects are of differing sizes, use the space we reserved
@ -3653,9 +3653,9 @@ JSObject::TradeGuts(JSContext *cx, JSObject *a, JSObject *b, TradeGutsReserved &
void *bpriv = b->hasPrivate() ? b->getPrivate() : NULL;
char tmp[sizeof(JSObject)];
memcpy(&tmp, a, sizeof tmp);
memcpy(a, b, sizeof tmp);
memcpy(b, &tmp, sizeof tmp);
js_memcpy(&tmp, a, sizeof tmp);
js_memcpy(a, b, sizeof tmp);
js_memcpy(b, &tmp, sizeof tmp);
if (a->isNative())
a->shape_->setNumFixedSlots(reserved.newafixed);
@ -4318,7 +4318,7 @@ JSObject::growElements(JSContext *cx, uintN newcap)
newheader = (ObjectElements *) cx->malloc_(newAllocated * sizeof(Value));
if (!newheader)
return false; /* Ditto. */
memcpy(newheader, getElementsHeader(),
js_memcpy(newheader, getElementsHeader(),
(ObjectElements::VALUES_PER_HEADER + initlen) * sizeof(Value));
}

8
js/src/jsobjinlines.h
Просмотреть файл

@ -1565,7 +1565,7 @@ NewObjectCache::fill(EntryIndex entry_, Class *clasp, gc::Cell *key, gc::AllocKi
entry->kind = kind;
entry->nbytes = obj->structSize();
memcpy(&entry->templateObject, obj, entry->nbytes);
js_memcpy(&entry->templateObject, obj, entry->nbytes);
}
inline void
@ -1598,7 +1598,7 @@ NewObjectCache::newObjectFromHit(JSContext *cx, EntryIndex entry_)
JSObject *obj = js_TryNewGCObject(cx, entry->kind);
if (obj) {
memcpy(obj, &entry->templateObject, entry->nbytes);
js_memcpy(obj, &entry->templateObject, entry->nbytes);
Probes::createObject(cx, obj);
return obj;
}
@ -1607,7 +1607,7 @@ NewObjectCache::newObjectFromHit(JSContext *cx, EntryIndex entry_)
size_t nbytes = entry->nbytes;
char stackObject[sizeof(JSObject_Slots16)];
JS_ASSERT(nbytes <= sizeof(stackObject));
memcpy(&stackObject, &entry->templateObject, nbytes);
js_memcpy(&stackObject, &entry->templateObject, nbytes);
JSObject *baseobj = (JSObject *) stackObject;
RootShape shapeRoot(cx, (Shape **) baseobj->addressOfShape());
@ -1615,7 +1615,7 @@ NewObjectCache::newObjectFromHit(JSContext *cx, EntryIndex entry_)
obj = js_NewGCObject(cx, entry->kind);
if (obj) {
memcpy(obj, baseobj, nbytes);
js_memcpy(obj, baseobj, nbytes);
Probes::createObject(cx, obj);
return obj;
}

8
js/src/jsopcode.cpp
Просмотреть файл

@ -1148,14 +1148,14 @@ UpdateDecompiledText(SprintStack *ss, jsbytecode *pc, ptrdiff_t todo)
const char *text = OFF2STR(&ss->sprinter, todo);
size_t len = strlen(text) + 1;
const char *ntext = ss->printer->pool.newArrayUninitialized<char>(len);
char *ntext = ss->printer->pool.newArrayUninitialized<char>(len);
if (!ntext) {
js_ReportOutOfMemory(ss->sprinter.context);
return false;
}
memcpy((char *) ntext, text, len);
jp->decompiled(pc).text = ntext;
js_memcpy(ntext, text, len);
jp->decompiled(pc).text = const_cast<const char *>(ntext);
}
return true;
@ -1168,7 +1168,7 @@ SprintDupeStr(SprintStack *ss, const char *str)
const char *nstr = ss->printer->pool.newArrayUninitialized<char>(len);
if (nstr) {
memcpy((char *) nstr, str, len);
js_memcpy((char *) nstr, str, len);
} else {
js_ReportOutOfMemory(ss->sprinter.context);
nstr = "";

4
js/src/jsprf.cpp
Просмотреть файл

@ -344,7 +344,7 @@ static int cvt_f(SprintfState *ss, double d, const char *fmt0, const char *fmt1)
/* Totally bogus % command to sprintf. Just ignore it */
return 0;
}
memcpy(fin, fmt0, (size_t)amount);
js_memcpy(fin, fmt0, (size_t)amount);
fin[amount] = 0;
/* Convert floating point using the native sprintf code */
@ -918,7 +918,7 @@ static int dosprintf(SprintfState *ss, const char *fmt, va_list ap)
i = fmt - dolPt;
if( i < (int)sizeof( pattern ) ){
pattern[0] = '%';
memcpy( &pattern[1], dolPt, (size_t)i );
js_memcpy( &pattern[1], dolPt, (size_t)i );
rv = cvt_f(ss, u.d, pattern, &pattern[i+1] );
}
} else

20
js/src/jsscript.cpp
Просмотреть файл

@ -1141,8 +1141,8 @@ JSScript::NewScriptFromEmitter(JSContext *cx, BytecodeEmitter *bce)
JS_ASSERT(script->mainOffset == 0);
script->mainOffset = prologLength;
memcpy(script->code, bce->prologBase(), prologLength * sizeof(jsbytecode));
memcpy(script->main(), bce->base(), mainLength * sizeof(jsbytecode));
PodCopy<jsbytecode>(script->code, bce->prologBase(), prologLength);
PodCopy<jsbytecode>(script->main(), bce->base(), mainLength);
nfixed = bce->inFunction()
? bce->bindings.countVars()
: bce->sharpSlots();
@ -1209,22 +1209,22 @@ JSScript::NewScriptFromEmitter(JSContext *cx, BytecodeEmitter *bce)
if (bce->hasUpvarIndices()) {
JS_ASSERT(bce->upvarIndices->count() <= bce->upvarMap.length());
memcpy(script->upvars()->vector, bce->upvarMap.begin(),
bce->upvarIndices->count() * sizeof(bce->upvarMap[0]));
PodCopy<UpvarCookie>(script->upvars()->vector, bce->upvarMap.begin(),
bce->upvarIndices->count());
bce->upvarIndices->clear();
bce->upvarMap.clear();
}
if (bce->globalUses.length()) {
memcpy(script->globals()->vector, &bce->globalUses[0],
bce->globalUses.length() * sizeof(GlobalSlotArray::Entry));
PodCopy<GlobalSlotArray::Entry>(script->globals()->vector, &bce->globalUses[0],
bce->globalUses.length());
}
if (script->nClosedArgs)
memcpy(script->closedSlots, &bce->closedArgs[0], script->nClosedArgs * sizeof(uint32_t));
PodCopy<uint32_t>(script->closedSlots, &bce->closedArgs[0], script->nClosedArgs);
if (script->nClosedVars) {
memcpy(&script->closedSlots[script->nClosedArgs], &bce->closedVars[0],
script->nClosedVars * sizeof(uint32_t));
PodCopy<uint32_t>(&script->closedSlots[script->nClosedArgs], &bce->closedVars[0],
script->nClosedVars);
}
script->bindings.transfer(cx, &bce->bindings);
@ -1715,7 +1715,7 @@ js_CloneScript(JSContext *cx, JSScript *script)
void
JSScript::copyClosedSlotsTo(JSScript *other)
{
memcpy(other->closedSlots, closedSlots, nClosedArgs + nClosedVars);
js_memcpy(other->closedSlots, closedSlots, nClosedArgs + nClosedVars);
}
bool

2
js/src/jsstr.cpp
Просмотреть файл

@ -3268,7 +3268,7 @@ js_NewStringCopyZ(JSContext *cx, const jschar *s)
jschar *news = (jschar *) cx->malloc_(m);
if (!news)
return NULL;
memcpy(news, s, m);
js_memcpy(news, s, m);
JSFixedString *str = js_NewString(cx, news, n);
if (!str)
cx->free_(news);

7
js/src/jsstr.h
Просмотреть файл

@ -46,6 +46,7 @@
#include "jsprvtd.h"
#include "jslock.h"
#include "jscell.h"
#include "jsutil.h"
#include "js/HashTable.h"
#include "vm/Unicode.h"
@ -215,7 +216,11 @@ js_strchr(const jschar *s, jschar c);
extern jschar *
js_strchr_limit(const jschar *s, jschar c, const jschar *limit);
#define js_strncpy(t, s, n) memcpy((t), (s), (n) * sizeof(jschar))
static JS_ALWAYS_INLINE void
js_strncpy(jschar *dst, const jschar *src, size_t nelem)
{
return js::PodCopy(dst, src, nelem);
}
namespace js {

4
js/src/jstypedarray.cpp
Просмотреть файл

@ -1799,7 +1799,7 @@ class TypedArrayTemplate
NativeType *dest = static_cast<NativeType*>((void*)getDataOffset(thisTypedArrayObj)) + offset;
if (getType(tarray) == getType(thisTypedArrayObj)) {
memcpy(dest, getDataOffset(tarray), getByteLength(tarray));
js_memcpy(dest, getDataOffset(tarray), getByteLength(tarray));
return true;
}
@ -1879,7 +1879,7 @@ class TypedArrayTemplate
void *srcbuf = cx->malloc_(getLength(tarray));
if (!srcbuf)
return false;
memcpy(srcbuf, getDataOffset(tarray), getByteLength(tarray));
js_memcpy(srcbuf, getDataOffset(tarray), getByteLength(tarray));
switch (getType(tarray)) {
case TypedArray::TYPE_INT8: {

2
js/src/jsutil.cpp
Просмотреть файл

@ -183,7 +183,7 @@ JS_BasicStatsAccum(JSBasicStats *bs, uint32_t val)
newbin = ValToBin(newscale, BinToVal(oldscale, bin));
newhist[newbin] += bs->hist[bin];
}
memcpy(bs->hist, newhist, sizeof bs->hist);
js_memcpy(bs->hist, newhist, sizeof bs->hist);
bs->logscale = newscale;
}
}

26
js/src/jsutil.h
Просмотреть файл

@ -51,6 +51,17 @@
/* Forward declarations. */
struct JSContext;
static JS_ALWAYS_INLINE void *
js_memcpy(void *dst_, const void *src_, size_t len)
{
char *dst = (char *) dst_;
const char *src = (const char *) src_;
JS_ASSERT_IF(dst >= src, (size_t) (dst - src) >= len);
JS_ASSERT_IF(src >= dst, (size_t) (src - dst) >= len);
return memcpy(dst, src, len);
}
#ifdef __cplusplus
namespace js {
@ -288,7 +299,7 @@ PodZero(T *t, size_t nelem)
* length. The compiler should inline the memset call with constant
* size, though.
*/
for (size_t i = 0; i < nelem; ++i, ++t)
for (T *end = t + nelem; t != end; ++t)
memset(t, 0, sizeof(T));
}
@ -309,6 +320,13 @@ PodArrayZero(T (&t)[N])
memset(t, 0, N * sizeof(T));
}
template <class T>
JS_ALWAYS_INLINE static void
PodAssign(T *dst, const T *src)
{
js_memcpy((char *) dst, (const char *) src, sizeof(T));
}
template <class T>
JS_ALWAYS_INLINE static void
PodCopy(T *dst, const T *src, size_t nelem)
@ -318,8 +336,12 @@ PodCopy(T *dst, const T *src, size_t nelem)
JS_ASSERT_IF(src >= dst, size_t(src - dst) >= nelem);
if (nelem < 128) {
/*
* Avoid using operator= in this loop, as it may have been
* intentionally deleted by the POD type.
*/
for (const T *srcend = src + nelem; src != srcend; ++src, ++dst)
*dst = *src;
PodAssign(dst, src);
} else {
memcpy(dst, src, nelem * sizeof(T));
}

4
js/src/jsxdrapi.cpp
Просмотреть файл

@ -135,7 +135,7 @@ static JSBool
mem_getbytes(JSXDRState *xdr, char *bytes, uint32_t len)
{
MEM_LEFT(xdr, len);
memcpy(bytes, MEM_DATA(xdr), len);
js_memcpy(bytes, MEM_DATA(xdr), len);
MEM_INCR(xdr, len);
return JS_TRUE;
}
@ -144,7 +144,7 @@ static JSBool
mem_setbytes(JSXDRState *xdr, char *bytes, uint32_t len)
{
MEM_NEED(xdr, len);
memcpy(MEM_DATA(xdr), bytes, len);
js_memcpy(MEM_DATA(xdr), bytes, len);
MEM_INCR(xdr, len);
return JS_TRUE;
}

2
js/src/shell/js.cpp
Просмотреть файл

@ -3768,7 +3768,7 @@ Serialize(JSContext *cx, uintN argc, jsval *vp)
}
JSObject *array = TypedArray::getTypedArray(arrayobj);
JS_ASSERT((uintptr_t(TypedArray::getDataOffset(array)) & 7) == 0);
memcpy(TypedArray::getDataOffset(array), datap, nbytes);
js_memcpy(TypedArray::getDataOffset(array), datap, nbytes);
JS_free(cx, datap);
JS_SET_RVAL(cx, vp, OBJECT_TO_JSVAL(arrayobj));
return true;