Package: release.debian.org
Severity: normal
User: release.debian....@packages.debian.org
Usertags: unblock
Please unblock package mozjs
mozjs is currently non-functional on ia64, which in turn e.g. breaks
gnome-shell on that architecture.
Stephan Schreiber has been debugging this issue and provided two patches
which seemingly fix those issues.
I was able to build mozjs on merulo and successfully run the js command
line interpreter, which simply segfaulted before without those patches.
We also have a confirmation from the original bug reporter that he could
successfully run gnome-shell on ia64. I was actually suprised we had
users running gnome-shell on ia64 :-)
The patches have been reviewed by Chris Coulson.
Full debdiff is attached.
Cheers,
Michael
unblock mozjs/1.8.5-1.0.0+dfsg-4
-- System Information:
Debian Release: wheezy/sid
APT prefers unstable
APT policy: (500, 'unstable'), (200, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 3.2.0-4-amd64 (SMP w/4 CPU cores)
Locale: LANG=de_DE.utf8, LC_CTYPE=de_DE.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
diff -Nru mozjs-1.8.5-1.0.0+dfsg/debian/changelog mozjs-1.8.5-1.0.0+dfsg/debian/changelog
--- mozjs-1.8.5-1.0.0+dfsg/debian/changelog 2012-07-25 15:50:09.000000000 +0200
+++ mozjs-1.8.5-1.0.0+dfsg/debian/changelog 2012-10-25 21:51:10.000000000 +0200
@@ -1,11 +1,20 @@
-mozjs (1.8.5-1.0.0+dfsg-3.1) unstable; urgency=low
+mozjs (1.8.5-1.0.0+dfsg-4) unstable; urgency=low
- * Non-maintainer upload.
+ [ Stephan Schreiber ]
+ * Fix MapPages() to work on ia64
+ - add debian/patches/fix-map-pages-on-ia64.patch
+ - update debian/patches/series
+ * Disable JS static strings on ia64
+ - add debian/patches/disable-static-strings-on-ia64.patch
+ - update debian/patches/series
+ * Closes: #659186
+
+ [ gregor herrmann ]
* Fix "libmozjs185-dev depends on libffi-dev": add libffi-dev to Depends in
libmozjs185-dev binary package. Thanks Nicolas Boulenguez.
(Closes: #678859)
- -- gregor herrmann <gre...@debian.org> Wed, 25 Jul 2012 15:48:48 +0200
+ -- Chris Coulson <chrisccoul...@ubuntu.com> Thu, 25 Oct 2012 20:10:45 +0100
mozjs (1.8.5-1.0.0+dfsg-3) unstable; urgency=low
diff -Nru mozjs-1.8.5-1.0.0+dfsg/debian/patches/disable-static-strings-on-ia64.patch mozjs-1.8.5-1.0.0+dfsg/debian/patches/disable-static-strings-on-ia64.patch
--- mozjs-1.8.5-1.0.0+dfsg/debian/patches/disable-static-strings-on-ia64.patch 1970-01-01 01:00:00.000000000 +0100
+++ mozjs-1.8.5-1.0.0+dfsg/debian/patches/disable-static-strings-on-ia64.patch 2012-10-25 21:51:11.000000000 +0200
@@ -0,0 +1,603 @@
+From: Stephan Schreiber <i...@fs-driver.org>
+Bug-Debian: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=659186
+Bug: https://bugzilla.mozilla.org/show_bug.cgi?id=589735
+Description: Turn off JS static strings on ia64
+
+diff -rp -u8 mozjs-old2/js/src/jsatom.cpp mozjs-1.8.5-1.0.0+dfsg/js/src/jsatom.cpp
+--- mozjs-old2/js/src/jsatom.cpp 2012-10-05 19:03:00.000000000 +0200
++++ mozjs-1.8.5-1.0.0+dfsg/js/src/jsatom.cpp 2012-10-05 19:17:27.000000000 +0200
+@@ -598,21 +598,23 @@ js_AtomizeChars(JSContext *cx, const jsc
+ }
+
+ JSAtom *
+ js_GetExistingStringAtom(JSContext *cx, const jschar *chars, size_t length)
+ {
+ JSString str, *str2;
+ JSAtomState *state;
+
++#ifdef JS_HAS_STATIC_STRINGS
+ if (length == 1) {
+ jschar c = *chars;
+ if (c < UNIT_STRING_LIMIT)
+ return STRING_TO_ATOM(JSString::unitString(c));
+ }
++#endif
+
+ str.initFlatNotTerminated((jschar *)chars, length);
+ state = &cx->runtime->atomState;
+
+ JS_LOCK(cx, &state->lock);
+ AtomSet::Ptr p = state->atoms.lookup(str.assertIsFlat());
+ str2 = p ? AtomEntryToKey(*p) : NULL;
+ JS_UNLOCK(cx, &state->lock);
+diff -rp -u8 mozjs-old2/js/src/jsiter.cpp mozjs-1.8.5-1.0.0+dfsg/js/src/jsiter.cpp
+--- mozjs-old2/js/src/jsiter.cpp 2012-10-05 19:03:00.000000000 +0200
++++ mozjs-1.8.5-1.0.0+dfsg/js/src/jsiter.cpp 2012-10-05 19:24:40.000000000 +0200
+@@ -997,19 +997,22 @@ js_IteratorNext(JSContext *cx, JSObject
+ *rval = IdToValue(*ni->current());
+ ni->incCursor();
+
+ if (rval->isString())
+ return true;
+
+ JSString *str;
+ jsint i;
++#ifdef JS_HAS_STATIC_STRINGS
+ if (rval->isInt32() && (jsuint(i = rval->toInt32()) < INT_STRING_LIMIT)) {
+ str = JSString::intString(i);
+- } else {
++ } else
++#endif
++ {
+ str = js_ValueToString(cx, *rval);
+ if (!str)
+ return false;
+ }
+
+ rval->setString(str);
+ return true;
+ }
+diff -rp -u8 mozjs-old2/js/src/jsnum.cpp mozjs-1.8.5-1.0.0+dfsg/js/src/jsnum.cpp
+--- mozjs-old2/js/src/jsnum.cpp 2012-10-05 19:03:00.000000000 +0200
++++ mozjs-1.8.5-1.0.0+dfsg/js/src/jsnum.cpp 2012-10-05 19:29:19.000000000 +0200
+@@ -600,18 +600,20 @@ ToCStringBuf::~ToCStringBuf()
+ js_free(dbuf);
+ }
+
+ JSString * JS_FASTCALL
+ js_IntToString(JSContext *cx, int32 si)
+ {
+ uint32 ui;
+ if (si >= 0) {
++#ifdef JS_HAS_STATIC_STRINGS
+ if (si < INT_STRING_LIMIT)
+ return JSString::intString(si);
++#endif
+ ui = si;
+ } else {
+ ui = uint32(-si);
+ JS_ASSERT_IF(si == INT32_MIN, ui == uint32(INT32_MAX) + 1);
+ }
+
+ JSCompartment *c = cx->compartment;
+ if (JSString *str = c->dtoaCache.lookup(10, si))
+@@ -1164,23 +1166,25 @@ js_NumberToStringWithBase(JSContext *cx,
+ */
+ if (base < 2 || base > 36)
+ return NULL;
+
+ JSCompartment *c = cx->compartment;
+
+ int32_t i;
+ if (JSDOUBLE_IS_INT32(d, &i)) {
++#ifdef JS_HAS_STATIC_STRINGS
+ if (base == 10 && jsuint(i) < INT_STRING_LIMIT)
+ return JSString::intString(i);
+ if (jsuint(i) < jsuint(base)) {
+ if (i < 10)
+ return JSString::intString(i);
+ return JSString::unitString(jschar('a' + i - 10));
+ }
++#endif
+
+ if (JSString *str = c->dtoaCache.lookup(base, d))
+ return str;
+
+ numStr = IntToCString(&cbuf, i, base);
+ JS_ASSERT(!cbuf.dbuf && numStr >= cbuf.sbuf && numStr < cbuf.sbuf + cbuf.sbufSize);
+ } else {
+ if (JSString *str = c->dtoaCache.lookup(base, d))
+diff -rp -u8 mozjs-old2/js/src/jsstr.cpp mozjs-1.8.5-1.0.0+dfsg/js/src/jsstr.cpp
+--- mozjs-old2/js/src/jsstr.cpp 2012-10-05 19:03:00.000000000 +0200
++++ mozjs-1.8.5-1.0.0+dfsg/js/src/jsstr.cpp 2012-10-18 16:27:04.000000000 +0200
+@@ -3116,16 +3116,18 @@ static JSFunctionSpec string_methods[] =
+ JS_FN("blink", str_blink, 0,0),
+ JS_FN("sup", str_sup, 0,0),
+ JS_FN("sub", str_sub, 0,0),
+ #endif
+
+ JS_FS_END
+ };
+
++#ifdef JS_HAS_STATIC_STRINGS
++
+ /*
+ * Set up some tools to make it easier to generate large tables. After constant
+ * folding, for each n, Rn(0) is the comma-separated list R(0), R(1), ..., R(2^n-1).
+ * Similary, Rn(k) (for any k and n) generates the list R(k), R(k+1), ..., R(k+2^n-1).
+ * To use this, define R appropriately, then use Rn(0) (for some value of n), then
+ * undefine R.
+ */
+ #define R2(n) R(n), R((n) + (1 << 0)), R((n) + (2 << 0)), R((n) + (3 << 0))
+@@ -3286,16 +3288,18 @@ const JSString *const JSString::intStrin
+ #undef R6
+ #undef R8
+ #undef R10
+ #undef R12
+
+ #undef R3
+ #undef R7
+
++#endif /* defined(JS_HAS_STATIC_STRINGS) */
++
+ JSBool
+ js_String(JSContext *cx, uintN argc, Value *vp)
+ {
+ Value *argv = vp + 2;
+
+ JSString *str;
+ if (argc > 0) {
+ str = js_ValueToString(cx, argv[0]);
+@@ -3326,23 +3330,25 @@ str_fromCharCode(JSContext *cx, uintN ar
+ JSString *str;
+
+ argv = vp + 2;
+ JS_ASSERT(argc <= JS_ARGS_LENGTH_MAX);
+ if (argc == 1) {
+ uint16_t code;
+ if (!ValueToUint16(cx, argv[0], &code))
+ return JS_FALSE;
++#ifdef JS_HAS_STATIC_STRINGS
+ if (code < UNIT_STRING_LIMIT) {
+ str = JSString::unitString(code);
+ if (!str)
+ return JS_FALSE;
+ vp->setString(str);
+ return JS_TRUE;
+ }
++#endif
+ argv[0].setInt32(code);
+ }
+ chars = (jschar *) cx->malloc((argc + 1) * sizeof(jschar));
+ if (!chars)
+ return JS_FALSE;
+ for (i = 0; i < argc; i++) {
+ uint16_t code;
+ if (!ValueToUint16(cx, argv[i], &code)) {
+@@ -3362,18 +3368,20 @@ str_fromCharCode(JSContext *cx, uintN ar
+ }
+
+ #ifdef JS_TRACER
+ static JSString* FASTCALL
+ String_fromCharCode(JSContext* cx, int32 i)
+ {
+ JS_ASSERT(JS_ON_TRACE(cx));
+ jschar c = (jschar)i;
++#ifdef JS_HAS_STATIC_STRINGS
+ if (c < UNIT_STRING_LIMIT)
+ return JSString::unitString(c);
++#endif
+ return js_NewStringCopyN(cx, &c, 1);
+ }
+ #endif
+
+ JS_DEFINE_TRCINFO_1(str_fromCharCode,
+ (2, (static, STRING_RETRY, String_fromCharCode, CONTEXT, INT32, 1, nanojit::ACCSET_NONE)))
+
+ static JSFunctionSpec string_static_methods[] = {
+diff -rp -u8 mozjs-old2/js/src/jsstr.h mozjs-1.8.5-1.0.0+dfsg/js/src/jsstr.h
+--- mozjs-old2/js/src/jsstr.h 2012-10-05 19:03:00.000000000 +0200
++++ mozjs-1.8.5-1.0.0+dfsg/js/src/jsstr.h 2012-10-19 20:45:45.000000000 +0200
+@@ -52,23 +52,33 @@
+ #include "jsapi.h"
+ #include "jsprvtd.h"
+ #include "jshashtable.h"
+ #include "jslock.h"
+ #include "jsobj.h"
+ #include "jsvalue.h"
+ #include "jscell.h"
+
++#if !defined(__ia64__)
++/*
++ * Don't use static strings on ia64 since the compiler may put the static
++ * memory out of the acceptable 47-bit jsval pointer range.
++ */
++# define JS_HAS_STATIC_STRINGS
++#endif
++
++#ifdef JS_HAS_STATIC_STRINGS
+ enum {
+ UNIT_STRING_LIMIT = 256U,
+ SMALL_CHAR_LIMIT = 128U, /* Bigger chars cannot be in a length-2 string. */
+ NUM_SMALL_CHARS = 64U,
+ INT_STRING_LIMIT = 256U,
+ NUM_HUNDRED_STRINGS = 156U
+ };
++#endif
+
+ extern jschar *
+ js_GetDependentStringChars(JSString *str);
+
+ extern JSString * JS_FASTCALL
+ js_ConcatStrings(JSContext *cx, JSString *left, JSString *right);
+
+ JS_STATIC_ASSERT(JS_BITS_PER_WORD >= 32);
+@@ -375,72 +385,90 @@ struct JSString
+ JSLinearString *assertIsLinear() {
+ JS_ASSERT(isLinear());
+ return reinterpret_cast<JSLinearString *>(this);
+ }
+
+ typedef uint8 SmallChar;
+
+ static inline bool fitsInSmallChar(jschar c) {
++#ifdef JS_HAS_STATIC_STRINGS
+ return c < SMALL_CHAR_LIMIT && toSmallChar[c] != INVALID_SMALL_CHAR;
++#else
++ return false;
++#endif
+ }
+
+ static inline bool isUnitString(void *ptr) {
++#ifdef JS_HAS_STATIC_STRINGS
+ jsuword delta = reinterpret_cast<jsuword>(ptr) -
+ reinterpret_cast<jsuword>(unitStringTable);
+ if (delta >= UNIT_STRING_LIMIT * sizeof(JSString))
+ return false;
+
+ /* If ptr points inside the static array, it must be well-aligned. */
+ JS_ASSERT(delta % sizeof(JSString) == 0);
+ return true;
++#else
++ return false;
++#endif
+ }
+
+ static inline bool isLength2String(void *ptr) {
++#ifdef JS_HAS_STATIC_STRINGS
+ jsuword delta = reinterpret_cast<jsuword>(ptr) -
+ reinterpret_cast<jsuword>(length2StringTable);
+ if (delta >= NUM_SMALL_CHARS * NUM_SMALL_CHARS * sizeof(JSString))
+ return false;
+
+ /* If ptr points inside the static array, it must be well-aligned. */
+ JS_ASSERT(delta % sizeof(JSString) == 0);
+ return true;
++#else
++ return false;
++#endif
+ }
+
+ static inline bool isHundredString(void *ptr) {
++#ifdef JS_HAS_STATIC_STRINGS
+ jsuword delta = reinterpret_cast<jsuword>(ptr) -
+ reinterpret_cast<jsuword>(hundredStringTable);
+ if (delta >= NUM_HUNDRED_STRINGS * sizeof(JSString))
+ return false;
+
+ /* If ptr points inside the static array, it must be well-aligned. */
+ JS_ASSERT(delta % sizeof(JSString) == 0);
+ return true;
++#else
++ return false;
++#endif
+ }
+
+ static inline bool isStatic(void *ptr) {
+ return isUnitString(ptr) || isLength2String(ptr) || isHundredString(ptr);
+ }
+
+ #ifdef __SUNPRO_CC
+ #pragma align 8 (__1cIJSStringPunitStringTable_, __1cIJSStringSlength2StringTable_, __1cIJSStringShundredStringTable_)
+ #endif
+
++#ifdef JS_HAS_STATIC_STRINGS
+ static const SmallChar INVALID_SMALL_CHAR = -1;
+
+ static const jschar fromSmallChar[];
+ static const SmallChar toSmallChar[];
+ static const JSString unitStringTable[];
+ static const JSString length2StringTable[];
+ static const JSString hundredStringTable[];
+ /*
+ * Since int strings can be unit strings, length-2 strings, or hundred
+ * strings, we keep a table to map from integer to the correct string.
+ */
+ static const JSString *const intStringTable[];
++#endif
+
+ static JSFlatString *unitString(jschar c);
+ static JSLinearString *getUnitString(JSContext *cx, JSString *str, size_t index);
+ static JSFlatString *length2String(jschar c1, jschar c2);
+ static JSFlatString *length2String(uint32 i);
+ static JSFlatString *intString(jsint i);
+
+ static JSFlatString *lookupStaticString(const jschar *chars, size_t length);
+diff -rp -u8 mozjs-old2/js/src/jsstrinlines.h mozjs-1.8.5-1.0.0+dfsg/js/src/jsstrinlines.h
+--- mozjs-old2/js/src/jsstrinlines.h 2012-10-05 19:03:00.000000000 +0200
++++ mozjs-1.8.5-1.0.0+dfsg/js/src/jsstrinlines.h 2012-10-18 16:27:27.000000000 +0200
+@@ -210,62 +210,85 @@ StringBuffer::checkLength(size_t length)
+ return CheckStringLength(context(), length);
+ }
+
+ } /* namespace js */
+
+ inline JSFlatString *
+ JSString::unitString(jschar c)
+ {
++#ifdef JS_HAS_STATIC_STRINGS
+ JS_ASSERT(c < UNIT_STRING_LIMIT);
+ return const_cast<JSString *>(&unitStringTable[c])->assertIsFlat();
++#else
++ JS_NOT_REACHED("no static strings");
++ return NULL;
++#endif
+ }
+
+ inline JSLinearString *
+ JSString::getUnitString(JSContext *cx, JSString *str, size_t index)
+ {
+ JS_ASSERT(index < str->length());
++#ifdef JS_HAS_STATIC_STRINGS
+ const jschar *chars = str->getChars(cx);
+ if (!chars)
+ return NULL;
+ jschar c = chars[index];
+ if (c < UNIT_STRING_LIMIT)
+ return unitString(c);
++#endif
+ return js_NewDependentString(cx, str, index, 1);
+ }
+
+ inline JSFlatString *
+ JSString::length2String(jschar c1, jschar c2)
+ {
++#ifdef JS_HAS_STATIC_STRINGS
+ JS_ASSERT(fitsInSmallChar(c1));
+ JS_ASSERT(fitsInSmallChar(c2));
+ return const_cast<JSString *> (
+ &length2StringTable[(((size_t)toSmallChar[c1]) << 6) + toSmallChar[c2]]
+ )->assertIsFlat();
++#else
++ JS_NOT_REACHED("no static strings");
++ return NULL;
++#endif
+ }
+
+ inline JSFlatString *
+ JSString::length2String(uint32 i)
+ {
++#ifdef JS_HAS_STATIC_STRINGS
+ JS_ASSERT(i < 100);
+ return length2String('0' + i / 10, '0' + i % 10);
++#else
++ JS_NOT_REACHED("no static strings");
++ return NULL;
++#endif
+ }
+
+ inline JSFlatString *
+ JSString::intString(jsint i)
+ {
++#ifdef JS_HAS_STATIC_STRINGS
+ jsuint u = jsuint(i);
+ JS_ASSERT(u < INT_STRING_LIMIT);
+ return const_cast<JSString *>(JSString::intStringTable[u])->assertIsFlat();
++#else
++ JS_NOT_REACHED("no static strings");
++ return NULL;
++#endif
+ }
+
+ /* Get a static atomized string for chars if possible. */
+ inline JSFlatString *
+ JSString::lookupStaticString(const jschar *chars, size_t length)
+ {
++#ifdef JS_HAS_STATIC_STRINGS
+ if (length == 1) {
+ if (chars[0] < UNIT_STRING_LIMIT)
+ return unitString(chars[0]);
+ }
+
+ if (length == 2) {
+ if (fitsInSmallChar(chars[0]) && fitsInSmallChar(chars[1]))
+ return length2String(chars[0], chars[1]);
+@@ -285,16 +308,17 @@ JSString::lookupStaticString(const jscha
+ jsint i = (chars[0] - '0') * 100 +
+ (chars[1] - '0') * 10 +
+ (chars[2] - '0');
+
+ if (jsuint(i) < INT_STRING_LIMIT)
+ return intString(i);
+ }
+ }
++#endif
+
+ return NULL;
+ }
+
+ inline void
+ JSString::finalize(JSContext *cx) {
+ JS_ASSERT(!JSString::isStatic(this));
+ JS_RUNTIME_UNMETER(cx->runtime, liveStrings);
+diff -rp -u8 mozjs-old2/js/src/jstracer.cpp mozjs-1.8.5-1.0.0+dfsg/js/src/jstracer.cpp
+--- mozjs-old2/js/src/jstracer.cpp 2012-10-05 19:03:00.000000000 +0200
++++ mozjs-1.8.5-1.0.0+dfsg/js/src/jstracer.cpp 2012-10-19 20:47:46.000000000 +0200
+@@ -11500,30 +11500,33 @@ TraceRecorder::callNative(uintN argc, JS
+ LIns* abs_ins = w.name(w.cmovi(isNeg_ins, neg_ins, a), "abs");
+ set(&vp[0], w.i2d(abs_ins));
+ pendingSpecializedNative = IGNORE_NATIVE_CALL_COMPLETE_CALLBACK;
+ return RECORD_CONTINUE;
+ }
+ }
+ if (vp[1].isString()) {
+ JSString *str = vp[1].toString();
++#ifdef JS_HAS_STATIC_STRINGS
+ if (native == js_str_charAt) {
+ jsdouble i = vp[2].toNumber();
+ if (JSDOUBLE_IS_NaN(i))
+ i = 0;
+ if (i < 0 || i >= str->length())
+ RETURN_STOP("charAt out of bounds");
+ LIns* str_ins = get(&vp[1]);
+ LIns* idx_ins = get(&vp[2]);
+ LIns* char_ins;
+ CHECK_STATUS(getCharAt(str, str_ins, idx_ins, mode, &char_ins));
+ set(&vp[0], char_ins);
+ pendingSpecializedNative = IGNORE_NATIVE_CALL_COMPLETE_CALLBACK;
+ return RECORD_CONTINUE;
+- } else if (native == js_str_charCodeAt) {
++ } else
++#endif
++ if (native == js_str_charCodeAt) {
+ jsdouble i = vp[2].toNumber();
+ if (JSDOUBLE_IS_NaN(i))
+ i = 0;
+ if (i < 0 || i >= str->length())
+ RETURN_STOP("charCodeAt out of bounds");
+ LIns* str_ins = get(&vp[1]);
+ LIns* idx_ins = get(&vp[2]);
+ LIns* charCode_ins;
+@@ -12962,16 +12965,17 @@ TraceRecorder::getCharCodeAt(JSString *s
+ snapshot(MISMATCH_EXIT));
+ *out = w.i2d(w.getStringChar(str_ins, idx_ins));
+ return RECORD_CONTINUE;
+ }
+
+ JS_STATIC_ASSERT(sizeof(JSString) == 16 || sizeof(JSString) == 32);
+
+
++#ifdef JS_HAS_STATIC_STRINGS
+ JS_REQUIRES_STACK LIns*
+ TraceRecorder::getUnitString(LIns* str_ins, LIns* idx_ins)
+ {
+ LIns *ch_ins = w.getStringChar(str_ins, idx_ins);
+ guard(true, w.ltuiN(ch_ins, UNIT_STRING_LIMIT), MISMATCH_EXIT);
+ return w.addp(w.nameImmpNonGC(JSString::unitStringTable),
+ w.lshpN(w.ui2p(ch_ins), (sizeof(JSString) == 16) ? 4 : 5));
+ }
+@@ -13005,16 +13009,17 @@ TraceRecorder::getCharAt(JSString *str,
+ LIns *unitstr_ins = getUnitString(str_ins, idx_ins);
+ w.stAlloc(unitstr_ins, phi_ins);
+ w.label(mbr);
+ }
+ *out = w.ldpAlloc(phi_ins);
+ }
+ return RECORD_CONTINUE;
+ }
++#endif
+
+ // Typed array tracing depends on EXPANDED_LOADSTORE and F2I
+ #if NJ_EXPANDED_LOADSTORE_SUPPORTED && NJ_F2I_SUPPORTED
+ static bool OkToTraceTypedArrays = true;
+ #else
+ static bool OkToTraceTypedArrays = false;
+ #endif
+
+@@ -13039,28 +13044,30 @@ TraceRecorder::record_JSOP_GETELEM()
+ bool call = *cx->regs->pc == JSOP_CALLELEM;
+
+ Value& idx = stackval(-1);
+ Value& lval = stackval(-2);
+
+ LIns* obj_ins = get(&lval);
+ LIns* idx_ins = get(&idx);
+
++#ifdef JS_HAS_STATIC_STRINGS
+ // Special case for array-like access of strings.
+ if (lval.isString() && hasInt32Repr(idx)) {
+ if (call)
+ RETURN_STOP_A("JSOP_CALLELEM on a string");
+ int i = asInt32(idx);
+ if (size_t(i) >= lval.toString()->length())
+ RETURN_STOP_A("Invalid string index in JSOP_GETELEM");
+ LIns* char_ins;
+ CHECK_STATUS_A(getCharAt(lval.toString(), obj_ins, idx_ins, JSOP_GETELEM, &char_ins));
+ set(&lval, char_ins);
+ return ARECORD_CONTINUE;
+ }
++#endif
+
+ if (lval.isPrimitive())
+ RETURN_STOP_A("JSOP_GETLEM on a primitive");
+ RETURN_IF_XML_A(lval);
+
+ JSObject* obj = &lval.toObject();
+ if (obj == globalObj)
+ RETURN_STOP_A("JSOP_GETELEM on global");
+diff -rp -u8 mozjs-old2/js/src/jstracer.h mozjs-1.8.5-1.0.0+dfsg/js/src/jstracer.h
+--- mozjs-old2/js/src/jstracer.h 2012-10-05 19:03:00.000000000 +0200
++++ mozjs-1.8.5-1.0.0+dfsg/js/src/jstracer.h 2012-10-05 19:08:15.000000000 +0200
+@@ -1389,20 +1389,22 @@ class TraceRecorder
+ Value* outp);
+ JS_REQUIRES_STACK RecordingStatus getPropertyWithScriptGetter(JSObject *obj,
+ nanojit::LIns* obj_ins,
+ const js::Shape* shape);
+
+ JS_REQUIRES_STACK RecordingStatus getCharCodeAt(JSString *str,
+ nanojit::LIns* str_ins, nanojit::LIns* idx_ins,
+ nanojit::LIns** out_ins);
++#ifdef JS_HAS_STATIC_STRINGS
+ JS_REQUIRES_STACK nanojit::LIns* getUnitString(nanojit::LIns* str_ins, nanojit::LIns* idx_ins);
+ JS_REQUIRES_STACK RecordingStatus getCharAt(JSString *str,
+ nanojit::LIns* str_ins, nanojit::LIns* idx_ins,
+ JSOp mode, nanojit::LIns** out_ins);
++#endif
+
+ JS_REQUIRES_STACK RecordingStatus initOrSetPropertyByName(nanojit::LIns* obj_ins,
+ Value* idvalp, Value* rvalp,
+ bool init);
+ JS_REQUIRES_STACK RecordingStatus initOrSetPropertyByIndex(nanojit::LIns* obj_ins,
+ nanojit::LIns* index_ins,
+ Value* rvalp, bool init);
+ JS_REQUIRES_STACK AbortableRecordingStatus setElem(int lval_spindex, int idx_spindex,
+diff -rp -u8 mozjs-old2/js/src/tracejit/Writer.cpp mozjs-1.8.5-1.0.0+dfsg/js/src/tracejit/Writer.cpp
+--- mozjs-old2/js/src/tracejit/Writer.cpp 2012-10-05 19:03:00.000000000 +0200
++++ mozjs-1.8.5-1.0.0+dfsg/js/src/tracejit/Writer.cpp 2012-10-05 19:08:55.000000000 +0200
+@@ -241,28 +241,31 @@ couldBeObjectOrString(LIns *ins)
+ ins->oprnd2()->isImmQ() &&
+ uintptr_t(ins->oprnd2()->immQ()) == JSVAL_PAYLOAD_MASK)
+ {
+ // ins_oprnd1 = ldq ...
+ // ins_oprnd2 = immq JSVAL_PAYLOAD_MASK
+ // ins = andq ins_oprnd1, ins_oprnd2
+ ret = true;
+ #endif
+- } else if (ins->isop(LIR_addp) &&
++ }
++#ifdef JS_HAS_STATIC_STRINGS
++ else if (ins->isop(LIR_addp) &&
+ ((ins->oprnd1()->isImmP() &&
+ (void *)ins->oprnd1()->immP() == JSString::unitStringTable) ||
+ (ins->oprnd2()->isImmP() &&
+ (void *)ins->oprnd2()->immP() == JSString::unitStringTable)))
+ {
+ // (String only)
+ // ins = addp ..., JSString::unitStringTable
+ // OR
+ // ins = addp JSString::unitStringTable, ...
+ ret = true;
+ }
++#endif
+
+ return ret;
+ }
+
+ static bool
+ isConstPrivatePtr(LIns *ins, unsigned slot)
+ {
+ #if JS_BITS_PER_WORD == 32
+
+
+Signed-off-by: Stephan Schreiber <i...@fs-driver.org>
+Based on a work of Luke Wagner <l...@mozilla.com>
diff -Nru mozjs-1.8.5-1.0.0+dfsg/debian/patches/fix-map-pages-on-ia64.patch mozjs-1.8.5-1.0.0+dfsg/debian/patches/fix-map-pages-on-ia64.patch
--- mozjs-1.8.5-1.0.0+dfsg/debian/patches/fix-map-pages-on-ia64.patch 1970-01-01 01:00:00.000000000 +0100
+++ mozjs-1.8.5-1.0.0+dfsg/debian/patches/fix-map-pages-on-ia64.patch 2012-10-25 21:51:11.000000000 +0200
@@ -0,0 +1,76 @@
+From: Stephan Schreiber <i...@fs-driver.org>
+Bug-Debian: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=659186
+Bug: https://bugzilla.mozilla.org/show_bug.cgi?id=589735
+Description: Fix MapPages() on ia64
+
+diff -rp -u10 mozjs-old1/js/src/jsgcchunk.cpp mozjs-old2/js/src/jsgcchunk.cpp
+--- mozjs-old1/js/src/jsgcchunk.cpp 2012-10-05 18:53:40.000000000 +0200
++++ mozjs-old2/js/src/jsgcchunk.cpp 2012-10-19 20:39:14.000000000 +0200
+@@ -311,29 +311,62 @@ MapAlignedPages(size_t size, size_t alig
+ if (p == MAP_FAILED)
+ return NULL;
+ return p;
+ }
+
+ # else /* JS_GC_HAS_MAP_ALIGN */
+
+ static void *
+ MapPages(void *addr, size_t size)
+ {
++#if defined(__ia64__)
++ /*
++ * The JS engine assumes that all allocated pointers have their high 17 bits clear,
++ * which ia64's mmap doesn't support directly. However, we can emulate it by passing
++ * mmap an "addr" parameter with those bits clear. The mmap will return that address,
++ * or the nearest available memory above that address, providing a near-guarantee
++ * that those bits are clear. If they are not, we return NULL below to indicate
++ * out-of-memory.
++ *
++ * The addr is chosen as 0x0000070000000000, which still allows about 120TB of virtual
++ * address space.
++ *
++ * See Bug 589735 for more information.
++ */
++#endif
++
+ /*
+ * We don't use MAP_FIXED here, because it can cause the *replacement*
+ * of existing mappings, and we only want to create new mappings.
+ */
++#if defined(__ia64__)
++ void *p = mmap(addr ? addr : (void*)0x0000070000000000,
++ size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON,
++ -1, 0);
++#else
+ void *p = mmap(addr, size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON,
+ -1, 0);
++#endif
+ if (p == MAP_FAILED)
+ return NULL;
++#if defined(__ia64__)
++ /*
++ * If the caller requested a specific memory location, verify that's what mmap returned.
++ * Otherwise: If the allocated memory doesn't have its upper 17 bits clear, consider it
++ * as out of memory.
++ */
++ if (addr && p != addr
++ || !addr && ((long long)p & 0xffff800000000000)) {
++#else
++ /* If the caller requested a specific memory location, verify that's what mmap returned. */
+ if (addr && p != addr) {
++#endif
+ /* We succeeded in mapping memory, but not in the right place. */
+ JS_ALWAYS_TRUE(munmap(p, size) == 0);
+ return NULL;
+ }
+ return p;
+ }
+
+ # endif /* !JS_GC_HAS_MAP_ALIGN */
+
+ static void
+
+
+Signed-off-by: Stephan Schreiber <i...@fs-driver.org>
+Based on a work of Jan Horak <jho...@redhat.com>
+
diff -Nru mozjs-1.8.5-1.0.0+dfsg/debian/patches/series mozjs-1.8.5-1.0.0+dfsg/debian/patches/series
--- mozjs-1.8.5-1.0.0+dfsg/debian/patches/series 2012-01-25 00:11:56.000000000 +0100
+++ mozjs-1.8.5-1.0.0+dfsg/debian/patches/series 2012-10-25 21:51:11.000000000 +0200
@@ -5,4 +5,6 @@
Bug-589744-Fallback-to-perf-measurement-stub-when-pe.patch
64bit-big-endian.patch
destdir.patch
+fix-map-pages-on-ia64.patch
+disable-static-strings-on-ia64.patch
autoconf.patch
