expat: fix CVE-2013-0340

expat < 4.0 is vulnerable to billion laughs attacks (see
[https://github.com/libexpat/libexpat/issues/34]). This patch backports
the commits b1d039607d3d8a042bf0466bfcc1c0f104e353c8
and 60959f2b491876199879d97c8ed956eabb0c2e73 from upstream.

Additionally, the SRC_URI had to be adjusted due to renaming of the
source archive

Signed-off-by: Jasper Orschulko <jasper@fancydomain.eu>
Signed-off-by: Steve Sakoman <steve@sakoman.com>

3 files changed, 1782 insertions, 29 deletions

diff --git a/meta/recipes-core/expat/expat/CVE-2013-0340.patch b/meta/recipes-core/expat/expat/CVE-2013-0340.patch
new file mode 100644
index 0000000000..1ab4d06508
--- /dev/null
+++ b/meta/recipes-core/expat/expat/CVE-2013-0340.patch
@@ -0,0 +1,1758 @@
+From a644ccf25392523b1329872310e24d0fc5f40629 Mon Sep 17 00:00:00 2001
+From: Sebastian Pipping <sebastian@pipping.org>
+Date: Mon, 19 Apr 2021 21:42:51 +0200
+Subject: [PATCH] expat: Backport fix for CVE-2013-0340
+
+Issue: https://github.com/libexpat/libexpat/issues/34
+
+This patch cherry-picks the following commits from upstream release
+2.4.0 onto 2.2.9:
+
+- b1d039607d3d8a042bf0466bfcc1c0f104e353c8
+- 60959f2b491876199879d97c8ed956eabb0c2e73
+
+Upstream-Status: Backport
+CVE: CVE-2013-0340
+Signed-off-by: Jasper Orschulko <jasper@fancydomain.eu>
+---
+ lib/expat.h       |   21 +-
+ lib/internal.h    |   30 +
+ lib/libexpat.def  |    3 +
+ lib/libexpatw.def |    3 +
+ lib/xmlparse.c    | 1147 +++++++++++++++++++++++++++++++++++++--
+ 5 files changed, 1143 insertions(+), 61 deletions(-)
+
+diff --git a/lib/expat.h b/lib/expat.h
+index 48a6e2a3..0fb70d9d 100644
+--- a/lib/expat.h
++++ b/lib/expat.h
+@@ -115,7 +115,9 @@ enum XML_Error {
+   XML_ERROR_RESERVED_PREFIX_XMLNS,
+   XML_ERROR_RESERVED_NAMESPACE_URI,
+   /* Added in 2.2.1. */
+-  XML_ERROR_INVALID_ARGUMENT
++  XML_ERROR_INVALID_ARGUMENT,
++  /* Added in 2.4.0. */
++  XML_ERROR_AMPLIFICATION_LIMIT_BREACH
+ };
+ 
+ enum XML_Content_Type {
+@@ -997,7 +999,10 @@ enum XML_FeatureEnum {
+   XML_FEATURE_SIZEOF_XML_LCHAR,
+   XML_FEATURE_NS,
+   XML_FEATURE_LARGE_SIZE,
+-  XML_FEATURE_ATTR_INFO
++  XML_FEATURE_ATTR_INFO,
++  /* Added in Expat 2.4.0. */
++  XML_FEATURE_BILLION_LAUGHS_ATTACK_PROTECTION_MAXIMUM_AMPLIFICATION_DEFAULT,
++  XML_FEATURE_BILLION_LAUGHS_ATTACK_PROTECTION_ACTIVATION_THRESHOLD_DEFAULT
+   /* Additional features must be added to the end of this enum. */
+ };
+ 
+@@ -1010,6 +1015,18 @@ typedef struct {
+ XMLPARSEAPI(const XML_Feature *)
+ XML_GetFeatureList(void);
+ 
++#ifdef XML_DTD
++/* Added in Expat 2.4.0. */
++XMLPARSEAPI(XML_Bool)
++XML_SetBillionLaughsAttackProtectionMaximumAmplification(
++    XML_Parser parser, float maximumAmplificationFactor);
++
++/* Added in Expat 2.4.0. */
++XMLPARSEAPI(XML_Bool)
++XML_SetBillionLaughsAttackProtectionActivationThreshold(
++    XML_Parser parser, unsigned long long activationThresholdBytes);
++#endif
++
+ /* Expat follows the semantic versioning convention.
+    See http://semver.org.
+ */
+diff --git a/lib/internal.h b/lib/internal.h
+index 60913dab..d8b31fa2 100644
+--- a/lib/internal.h
++++ b/lib/internal.h
+@@ -101,10 +101,40 @@
+ #  endif
+ #endif
+ 
++#include <limits.h> // ULONG_MAX
++
++#if defined(_WIN32) && ! defined(__USE_MINGW_ANSI_STDIO)
++#  define EXPAT_FMT_ULL(midpart) "%" midpart "I64u"
++#  if defined(_WIN64) // Note: modifier "td" does not work for MinGW
++#    define EXPAT_FMT_PTRDIFF_T(midpart) "%" midpart "I64d"
++#  else
++#    define EXPAT_FMT_PTRDIFF_T(midpart) "%" midpart "d"
++#  endif
++#else
++#  define EXPAT_FMT_ULL(midpart) "%" midpart "llu"
++#  if ! defined(ULONG_MAX)
++#    error Compiler did not define ULONG_MAX for us
++#  elif ULONG_MAX == 18446744073709551615u // 2^64-1
++#    define EXPAT_FMT_PTRDIFF_T(midpart) "%" midpart "ld"
++#  else
++#    define EXPAT_FMT_PTRDIFF_T(midpart) "%" midpart "d"
++#  endif
++#endif
++
+ #ifndef UNUSED_P
+ #  define UNUSED_P(p) (void)p
+ #endif
+ 
++/* NOTE BEGIN If you ever patch these defaults to greater values
++              for non-attack XML payload in your environment,
++              please file a bug report with libexpat.  Thank you!
++*/
++#define EXPAT_BILLION_LAUGHS_ATTACK_PROTECTION_MAXIMUM_AMPLIFICATION_DEFAULT   \
++  100.0f
++#define EXPAT_BILLION_LAUGHS_ATTACK_PROTECTION_ACTIVATION_THRESHOLD_DEFAULT    \
++  8388608 // 8 MiB, 2^23
++/* NOTE END */
++
+ #ifdef __cplusplus
+ extern "C" {
+ #endif
+diff --git a/lib/libexpat.def b/lib/libexpat.def
+index 16faf595..5aefa6df 100644
+--- a/lib/libexpat.def
++++ b/lib/libexpat.def
+@@ -76,3 +76,6 @@ EXPORTS
+   XML_SetHashSalt @67
+ ; added with version 2.2.5
+   _INTERNAL_trim_to_complete_utf8_characters @68
++; added with version 2.4.0
++  XML_SetBillionLaughsAttackProtectionActivationThreshold @69
++  XML_SetBillionLaughsAttackProtectionMaximumAmplification @70
+diff --git a/lib/libexpatw.def b/lib/libexpatw.def
+index 16faf595..5aefa6df 100644
+--- a/lib/libexpatw.def
++++ b/lib/libexpatw.def
+@@ -76,3 +76,6 @@ EXPORTS
+   XML_SetHashSalt @67
+ ; added with version 2.2.5
+   _INTERNAL_trim_to_complete_utf8_characters @68
++; added with version 2.4.0
++  XML_SetBillionLaughsAttackProtectionActivationThreshold @69
++  XML_SetBillionLaughsAttackProtectionMaximumAmplification @70
+diff --git a/lib/xmlparse.c b/lib/xmlparse.c
+index 3aaf35b9..6790bc28 100644
+--- a/lib/xmlparse.c
++++ b/lib/xmlparse.c
+@@ -47,6 +47,8 @@
+ #include <limits.h> /* UINT_MAX */
+ #include <stdio.h>  /* fprintf */
+ #include <stdlib.h> /* getenv, rand_s */
++#include <stdint.h> /* uintptr_t */
++#include <math.h>   /* isnan */
+ 
+ #ifdef _WIN32
+ #  define getpid GetCurrentProcessId
+@@ -373,6 +375,31 @@ typedef struct open_internal_entity {
+   XML_Bool betweenDecl; /* WFC: PE Between Declarations */
+ } OPEN_INTERNAL_ENTITY;
+ 
++enum XML_Account {
++  XML_ACCOUNT_DIRECT,           /* bytes directly passed to the Expat parser */
++  XML_ACCOUNT_ENTITY_EXPANSION, /* intermediate bytes produced during entity
++                                   expansion */
++  XML_ACCOUNT_NONE              /* i.e. do not account, was accounted already */
++};
++
++#ifdef XML_DTD
++typedef unsigned long long XmlBigCount;
++typedef struct accounting {
++  XmlBigCount countBytesDirect;
++  XmlBigCount countBytesIndirect;
++  int debugLevel;
++  float maximumAmplificationFactor; // >=1.0
++  unsigned long long activationThresholdBytes;
++} ACCOUNTING;
++
++typedef struct entity_stats {
++  unsigned int countEverOpened;
++  unsigned int currentDepth;
++  unsigned int maximumDepthSeen;
++  int debugLevel;
++} ENTITY_STATS;
++#endif /* XML_DTD */
++
+ typedef enum XML_Error PTRCALL Processor(XML_Parser parser, const char *start,
+                                          const char *end, const char **endPtr);
+ 
+@@ -403,16 +430,18 @@ static enum XML_Error initializeEncoding(XML_Parser parser);
+ static enum XML_Error doProlog(XML_Parser parser, const ENCODING *enc,
+                                const char *s, const char *end, int tok,
+                                const char *next, const char **nextPtr,
+-                               XML_Bool haveMore, XML_Bool allowClosingDoctype);
++                               XML_Bool haveMore, XML_Bool allowClosingDoctype,
++                               enum XML_Account account);
+ static enum XML_Error processInternalEntity(XML_Parser parser, ENTITY *entity,
+                                             XML_Bool betweenDecl);
+ static enum XML_Error doContent(XML_Parser parser, int startTagLevel,
+                                 const ENCODING *enc, const char *start,
+                                 const char *end, const char **endPtr,
+-                                XML_Bool haveMore);
++                                XML_Bool haveMore, enum XML_Account account);
+ static enum XML_Error doCdataSection(XML_Parser parser, const ENCODING *,
+                                      const char **startPtr, const char *end,
+-                                     const char **nextPtr, XML_Bool haveMore);
++                                     const char **nextPtr, XML_Bool haveMore,
++                                     enum XML_Account account);
+ #ifdef XML_DTD
+ static enum XML_Error doIgnoreSection(XML_Parser parser, const ENCODING *,
+                                       const char **startPtr, const char *end,
+@@ -422,7 +451,8 @@ static enum XML_Error doIgnoreSection(XML_Parser parser, const ENCODING *,
+ static void freeBindings(XML_Parser parser, BINDING *bindings);
+ static enum XML_Error storeAtts(XML_Parser parser, const ENCODING *,
+                                 const char *s, TAG_NAME *tagNamePtr,
+-                                BINDING **bindingsPtr);
++                                BINDING **bindingsPtr,
++                                enum XML_Account account);
+ static enum XML_Error addBinding(XML_Parser parser, PREFIX *prefix,
+                                  const ATTRIBUTE_ID *attId, const XML_Char *uri,
+                                  BINDING **bindingsPtr);
+@@ -431,15 +461,18 @@ static int defineAttribute(ELEMENT_TYPE *type, ATTRIBUTE_ID *, XML_Bool isCdata,
+                            XML_Parser parser);
+ static enum XML_Error storeAttributeValue(XML_Parser parser, const ENCODING *,
+                                           XML_Bool isCdata, const char *,
+-                                          const char *, STRING_POOL *);
++                                          const char *, STRING_POOL *,
++                                          enum XML_Account account);
+ static enum XML_Error appendAttributeValue(XML_Parser parser, const ENCODING *,
+                                            XML_Bool isCdata, const char *,
+-                                           const char *, STRING_POOL *);
++                                           const char *, STRING_POOL *,
++                                           enum XML_Account account);
+ static ATTRIBUTE_ID *getAttributeId(XML_Parser parser, const ENCODING *enc,
+                                     const char *start, const char *end);
+ static int setElementTypePrefix(XML_Parser parser, ELEMENT_TYPE *);
+ static enum XML_Error storeEntityValue(XML_Parser parser, const ENCODING *enc,
+-                                       const char *start, const char *end);
++                                       const char *start, const char *end,
++                                       enum XML_Account account);
+ static int reportProcessingInstruction(XML_Parser parser, const ENCODING *enc,
+                                        const char *start, const char *end);
+ static int reportComment(XML_Parser parser, const ENCODING *enc,
+@@ -503,6 +536,35 @@ static XML_Parser parserCreate(const XML_Char *encodingName,
+ 
+ static void parserInit(XML_Parser parser, const XML_Char *encodingName);
+ 
++#ifdef XML_DTD
++static float accountingGetCurrentAmplification(XML_Parser rootParser);
++static void accountingReportStats(XML_Parser originParser, const char *epilog);
++static void accountingOnAbort(XML_Parser originParser);
++static void accountingReportDiff(XML_Parser rootParser,
++                                 unsigned int levelsAwayFromRootParser,
++                                 const char *before, const char *after,
++                                 ptrdiff_t bytesMore, int source_line,
++                                 enum XML_Account account);
++static XML_Bool accountingDiffTolerated(XML_Parser originParser, int tok,
++                                        const char *before, const char *after,
++                                        int source_line,
++                                        enum XML_Account account);
++
++static void entityTrackingReportStats(XML_Parser parser, ENTITY *entity,
++                                      const char *action, int sourceLine);
++static void entityTrackingOnOpen(XML_Parser parser, ENTITY *entity,
++                                 int sourceLine);
++static void entityTrackingOnClose(XML_Parser parser, ENTITY *entity,
++                                  int sourceLine);
++
++static XML_Parser getRootParserOf(XML_Parser parser,
++                                  unsigned int *outLevelDiff);
++static const char *unsignedCharToPrintable(unsigned char c);
++#endif /* XML_DTD */
++
++static unsigned long getDebugLevel(const char *variableName,
++                                   unsigned long defaultDebugLevel);
++
+ #define poolStart(pool) ((pool)->start)
+ #define poolEnd(pool) ((pool)->ptr)
+ #define poolLength(pool) ((pool)->ptr - (pool)->start)
+@@ -616,6 +678,10 @@ struct XML_ParserStruct {
+   enum XML_ParamEntityParsing m_paramEntityParsing;
+ #endif
+   unsigned long m_hash_secret_salt;
++#ifdef XML_DTD
++  ACCOUNTING m_accounting;
++  ENTITY_STATS m_entity_stats;
++#endif
+ };
+ 
+ #define MALLOC(parser, s) (parser->m_mem.malloc_fcn((s)))
+@@ -1055,6 +1121,18 @@ parserInit(XML_Parser parser, const XML_Char *encodingName) {
+   parser->m_paramEntityParsing = XML_PARAM_ENTITY_PARSING_NEVER;
+ #endif
+   parser->m_hash_secret_salt = 0;
++
++#ifdef XML_DTD
++  memset(&parser->m_accounting, 0, sizeof(ACCOUNTING));
++  parser->m_accounting.debugLevel = getDebugLevel("EXPAT_ACCOUNTING_DEBUG", 0u);
++  parser->m_accounting.maximumAmplificationFactor
++      = EXPAT_BILLION_LAUGHS_ATTACK_PROTECTION_MAXIMUM_AMPLIFICATION_DEFAULT;
++  parser->m_accounting.activationThresholdBytes
++      = EXPAT_BILLION_LAUGHS_ATTACK_PROTECTION_ACTIVATION_THRESHOLD_DEFAULT;
++
++  memset(&parser->m_entity_stats, 0, sizeof(ENTITY_STATS));
++  parser->m_entity_stats.debugLevel = getDebugLevel("EXPAT_ENTITY_DEBUG", 0u);
++#endif
+ }
+ 
+ /* moves list of bindings to m_freeBindingList */
+@@ -2318,6 +2396,10 @@ XML_ErrorString(enum XML_Error code) {
+   /* Added in 2.2.5. */
+   case XML_ERROR_INVALID_ARGUMENT: /* Constant added in 2.2.1, already */
+     return XML_L("invalid argument");
++  /* Added in 2.4.0. */
++  case XML_ERROR_AMPLIFICATION_LIMIT_BREACH:
++    return XML_L(
++        "limit on input amplification factor (from DTD and entities) breached");
+   }
+   return NULL;
+ }
+@@ -2354,41 +2436,75 @@ XML_ExpatVersionInfo(void) {
+ 
+ const XML_Feature *XMLCALL
+ XML_GetFeatureList(void) {
+-  static const XML_Feature features[]
+-      = {{XML_FEATURE_SIZEOF_XML_CHAR, XML_L("sizeof(XML_Char)"),
+-          sizeof(XML_Char)},
+-         {XML_FEATURE_SIZEOF_XML_LCHAR, XML_L("sizeof(XML_LChar)"),
+-          sizeof(XML_LChar)},
++  static const XML_Feature features[] = {
++      {XML_FEATURE_SIZEOF_XML_CHAR, XML_L("sizeof(XML_Char)"),
++       sizeof(XML_Char)},
++      {XML_FEATURE_SIZEOF_XML_LCHAR, XML_L("sizeof(XML_LChar)"),
++       sizeof(XML_LChar)},
+ #ifdef XML_UNICODE
+-         {XML_FEATURE_UNICODE, XML_L("XML_UNICODE"), 0},
++      {XML_FEATURE_UNICODE, XML_L("XML_UNICODE"), 0},
+ #endif
+ #ifdef XML_UNICODE_WCHAR_T
+-         {XML_FEATURE_UNICODE_WCHAR_T, XML_L("XML_UNICODE_WCHAR_T"), 0},
++      {XML_FEATURE_UNICODE_WCHAR_T, XML_L("XML_UNICODE_WCHAR_T"), 0},
+ #endif
+ #ifdef XML_DTD
+-         {XML_FEATURE_DTD, XML_L("XML_DTD"), 0},
++      {XML_FEATURE_DTD, XML_L("XML_DTD"), 0},
+ #endif
+ #ifdef XML_CONTEXT_BYTES
+-         {XML_FEATURE_CONTEXT_BYTES, XML_L("XML_CONTEXT_BYTES"),
+-          XML_CONTEXT_BYTES},
++      {XML_FEATURE_CONTEXT_BYTES, XML_L("XML_CONTEXT_BYTES"),
++       XML_CONTEXT_BYTES},
+ #endif
+ #ifdef XML_MIN_SIZE
+-         {XML_FEATURE_MIN_SIZE, XML_L("XML_MIN_SIZE"), 0},
++      {XML_FEATURE_MIN_SIZE, XML_L("XML_MIN_SIZE"), 0},
+ #endif
+ #ifdef XML_NS
+-         {XML_FEATURE_NS, XML_L("XML_NS"), 0},
++      {XML_FEATURE_NS, XML_L("XML_NS"), 0},
+ #endif
+ #ifdef XML_LARGE_SIZE
+-         {XML_FEATURE_LARGE_SIZE, XML_L("XML_LARGE_SIZE"), 0},
++      {XML_FEATURE_LARGE_SIZE, XML_L("XML_LARGE_SIZE"), 0},
+ #endif
+ #ifdef XML_ATTR_INFO
+-         {XML_FEATURE_ATTR_INFO, XML_L("XML_ATTR_INFO"), 0},
++      {XML_FEATURE_ATTR_INFO, XML_L("XML_ATTR_INFO"), 0},
+ #endif
+-         {XML_FEATURE_END, NULL, 0}};
++#ifdef XML_DTD
++      /* Added in Expat 2.4.0. */
++      {XML_FEATURE_BILLION_LAUGHS_ATTACK_PROTECTION_MAXIMUM_AMPLIFICATION_DEFAULT,
++       XML_L("XML_BLAP_MAX_AMP"),
++       (long int)
++           EXPAT_BILLION_LAUGHS_ATTACK_PROTECTION_MAXIMUM_AMPLIFICATION_DEFAULT},
++      {XML_FEATURE_BILLION_LAUGHS_ATTACK_PROTECTION_ACTIVATION_THRESHOLD_DEFAULT,
++       XML_L("XML_BLAP_ACT_THRES"),
++       EXPAT_BILLION_LAUGHS_ATTACK_PROTECTION_ACTIVATION_THRESHOLD_DEFAULT},
++#endif
++      {XML_FEATURE_END, NULL, 0}};
+ 
+   return features;
+ }
+ 
++#ifdef XML_DTD
++XML_Bool XMLCALL
++XML_SetBillionLaughsAttackProtectionMaximumAmplification(
++    XML_Parser parser, float maximumAmplificationFactor) {
++  if ((parser == NULL) || (parser->m_parentParser != NULL)
++      || isnan(maximumAmplificationFactor)
++      || (maximumAmplificationFactor < 1.0f)) {
++    return XML_FALSE;
++  }
++  parser->m_accounting.maximumAmplificationFactor = maximumAmplificationFactor;
++  return XML_TRUE;
++}
++
++XML_Bool XMLCALL
++XML_SetBillionLaughsAttackProtectionActivationThreshold(
++    XML_Parser parser, unsigned long long activationThresholdBytes) {
++  if ((parser == NULL) || (parser->m_parentParser != NULL)) {
++    return XML_FALSE;
++  }
++  parser->m_accounting.activationThresholdBytes = activationThresholdBytes;
++  return XML_TRUE;
++}
++#endif /* XML_DTD */
++
+ /* Initially tag->rawName always points into the parse buffer;
+    for those TAG instances opened while the current parse buffer was
+    processed, and not yet closed, we need to store tag->rawName in a more
+@@ -2441,9 +2557,9 @@ storeRawNames(XML_Parser parser) {
+ static enum XML_Error PTRCALL
+ contentProcessor(XML_Parser parser, const char *start, const char *end,
+                  const char **endPtr) {
+-  enum XML_Error result
+-      = doContent(parser, 0, parser->m_encoding, start, end, endPtr,
+-                  (XML_Bool)! parser->m_parsingStatus.finalBuffer);
++  enum XML_Error result = doContent(
++      parser, 0, parser->m_encoding, start, end, endPtr,
++      (XML_Bool)! parser->m_parsingStatus.finalBuffer, XML_ACCOUNT_DIRECT);
+   if (result == XML_ERROR_NONE) {
+     if (! storeRawNames(parser))
+       return XML_ERROR_NO_MEMORY;
+@@ -2468,6 +2584,14 @@ externalEntityInitProcessor2(XML_Parser parser, const char *start,
+   int tok = XmlContentTok(parser->m_encoding, start, end, &next);
+   switch (tok) {
+   case XML_TOK_BOM:
++#ifdef XML_DTD
++    if (! accountingDiffTolerated(parser, tok, start, next, __LINE__,
++                                  XML_ACCOUNT_DIRECT)) {
++      accountingOnAbort(parser);
++      return XML_ERROR_AMPLIFICATION_LIMIT_BREACH;
++    }
++#endif /* XML_DTD */
++
+     /* If we are at the end of the buffer, this would cause the next stage,
+        i.e. externalEntityInitProcessor3, to pass control directly to
+        doContent (by detecting XML_TOK_NONE) without processing any xml text
+@@ -2505,6 +2629,10 @@ externalEntityInitProcessor3(XML_Parser parser, const char *start,
+   const char *next = start; /* XmlContentTok doesn't always set the last arg */
+   parser->m_eventPtr = start;
+   tok = XmlContentTok(parser->m_encoding, start, end, &next);
++  /* Note: These bytes are accounted later in:
++           - processXmlDecl
++           - externalEntityContentProcessor
++  */
+   parser->m_eventEndPtr = next;
+ 
+   switch (tok) {
+@@ -2546,7 +2674,8 @@ externalEntityContentProcessor(XML_Parser parser, const char *start,
+                                const char *end, const char **endPtr) {
+   enum XML_Error result
+       = doContent(parser, 1, parser->m_encoding, start, end, endPtr,
+-                  (XML_Bool)! parser->m_parsingStatus.finalBuffer);
++                  (XML_Bool)! parser->m_parsingStatus.finalBuffer,
++                  XML_ACCOUNT_ENTITY_EXPANSION);
+   if (result == XML_ERROR_NONE) {
+     if (! storeRawNames(parser))
+       return XML_ERROR_NO_MEMORY;
+@@ -2557,7 +2686,7 @@ externalEntityContentProcessor(XML_Parser parser, const char *start,
+ static enum XML_Error
+ doContent(XML_Parser parser, int startTagLevel, const ENCODING *enc,
+           const char *s, const char *end, const char **nextPtr,
+-          XML_Bool haveMore) {
++          XML_Bool haveMore, enum XML_Account account) {
+   /* save one level of indirection */
+   DTD *const dtd = parser->m_dtd;
+ 
+@@ -2575,6 +2704,17 @@ doContent(XML_Parser parser, int startTagLevel, const ENCODING *enc,
+   for (;;) {
+     const char *next = s; /* XmlContentTok doesn't always set the last arg */
+     int tok = XmlContentTok(enc, s, end, &next);
++#ifdef XML_DTD
++    const char *accountAfter
++        = ((tok == XML_TOK_TRAILING_RSQB) || (tok == XML_TOK_TRAILING_CR))
++              ? (haveMore ? s /* i.e. 0 bytes */ : end)
++              : next;
++    if (! accountingDiffTolerated(parser, tok, s, accountAfter, __LINE__,
++                                  account)) {
++      accountingOnAbort(parser);
++      return XML_ERROR_AMPLIFICATION_LIMIT_BREACH;
++    }
++#endif
+     *eventEndPP = next;
+     switch (tok) {
+     case XML_TOK_TRAILING_CR:
+@@ -2630,6 +2770,14 @@ doContent(XML_Parser parser, int startTagLevel, const ENCODING *enc,
+       XML_Char ch = (XML_Char)XmlPredefinedEntityName(
+           enc, s + enc->minBytesPerChar, next - enc->minBytesPerChar);
+       if (ch) {
++#ifdef XML_DTD
++        /* NOTE: We are replacing 4-6 characters original input for 1 character
++         *       so there is no amplification and hence recording without
++         *       protection. */
++        accountingDiffTolerated(parser, tok, (char *)&ch,
++                                ((char *)&ch) + sizeof(XML_Char), __LINE__,
++                                XML_ACCOUNT_ENTITY_EXPANSION);
++#endif /* XML_DTD */
+         if (parser->m_characterDataHandler)
+           parser->m_characterDataHandler(parser->m_handlerArg, &ch, 1);
+         else if (parser->m_defaultHandler)
+@@ -2748,7 +2896,8 @@ doContent(XML_Parser parser, int startTagLevel, const ENCODING *enc,
+       }
+       tag->name.str = (XML_Char *)tag->buf;
+       *toPtr = XML_T('\0');
+-      result = storeAtts(parser, enc, s, &(tag->name), &(tag->bindings));
++      result
++          = storeAtts(parser, enc, s, &(tag->name), &(tag->bindings), account);
+       if (result)
+         return result;
+       if (parser->m_startElementHandler)
+@@ -2772,7 +2921,8 @@ doContent(XML_Parser parser, int startTagLevel, const ENCODING *enc,
+       if (! name.str)
+         return XML_ERROR_NO_MEMORY;
+       poolFinish(&parser->m_tempPool);
+-      result = storeAtts(parser, enc, s, &name, &bindings);
++      result = storeAtts(parser, enc, s, &name, &bindings,
++                         XML_ACCOUNT_NONE /* token spans whole start tag */);
+       if (result != XML_ERROR_NONE) {
+         freeBindings(parser, bindings);
+         return result;
+@@ -2907,7 +3057,8 @@ doContent(XML_Parser parser, int startTagLevel, const ENCODING *enc,
+       /* END disabled code */
+       else if (parser->m_defaultHandler)
+         reportDefault(parser, enc, s, next);
+-      result = doCdataSection(parser, enc, &next, end, nextPtr, haveMore);
++      result
++          = doCdataSection(parser, enc, &next, end, nextPtr, haveMore, account);
+       if (result != XML_ERROR_NONE)
+         return result;
+       else if (! next) {
+@@ -3036,7 +3187,8 @@ freeBindings(XML_Parser parser, BINDING *bindings) {
+ */
+ static enum XML_Error
+ storeAtts(XML_Parser parser, const ENCODING *enc, const char *attStr,
+-          TAG_NAME *tagNamePtr, BINDING **bindingsPtr) {
++          TAG_NAME *tagNamePtr, BINDING **bindingsPtr,
++          enum XML_Account account) {
+   DTD *const dtd = parser->m_dtd; /* save one level of indirection */
+   ELEMENT_TYPE *elementType;
+   int nDefaultAtts;
+@@ -3146,7 +3298,7 @@ storeAtts(XML_Parser parser, const ENCODING *enc, const char *attStr,
+       /* normalize the attribute value */
+       result = storeAttributeValue(
+           parser, enc, isCdata, parser->m_atts[i].valuePtr,
+-          parser->m_atts[i].valueEnd, &parser->m_tempPool);
++          parser->m_atts[i].valueEnd, &parser->m_tempPool, account);
+       if (result)
+         return result;
+       appAtts[attIndex] = poolStart(&parser->m_tempPool);
+@@ -3535,9 +3687,9 @@ addBinding(XML_Parser parser, PREFIX *prefix, const ATTRIBUTE_ID *attId,
+ static enum XML_Error PTRCALL
+ cdataSectionProcessor(XML_Parser parser, const char *start, const char *end,
+                       const char **endPtr) {
+-  enum XML_Error result
+-      = doCdataSection(parser, parser->m_encoding, &start, end, endPtr,
+-                       (XML_Bool)! parser->m_parsingStatus.finalBuffer);
++  enum XML_Error result = doCdataSection(
++      parser, parser->m_encoding, &start, end, endPtr,
++      (XML_Bool)! parser->m_parsingStatus.finalBuffer, XML_ACCOUNT_DIRECT);
+   if (result != XML_ERROR_NONE)
+     return result;
+   if (start) {
+@@ -3557,7 +3709,8 @@ cdataSectionProcessor(XML_Parser parser, const char *start, const char *end,
+ */
+ static enum XML_Error
+ doCdataSection(XML_Parser parser, const ENCODING *enc, const char **startPtr,
+-               const char *end, const char **nextPtr, XML_Bool haveMore) {
++               const char *end, const char **nextPtr, XML_Bool haveMore,
++               enum XML_Account account) {
+   const char *s = *startPtr;
+   const char **eventPP;
+   const char **eventEndPP;
+@@ -3575,6 +3728,14 @@ doCdataSection(XML_Parser parser, const ENCODING *enc, const char **startPtr,
+   for (;;) {
+     const char *next;
+     int tok = XmlCdataSectionTok(enc, s, end, &next);
++#ifdef XML_DTD
++    if (! accountingDiffTolerated(parser, tok, s, next, __LINE__, account)) {
++      accountingOnAbort(parser);
++      return XML_ERROR_AMPLIFICATION_LIMIT_BREACH;
++    }
++#else
++    UNUSED_P(account);
++#endif
+     *eventEndPP = next;
+     switch (tok) {
+     case XML_TOK_CDATA_SECT_CLOSE:
+@@ -3719,6 +3880,13 @@ doIgnoreSection(XML_Parser parser, const ENCODING *enc, const char **startPtr,
+   *eventPP = s;
+   *startPtr = NULL;
+   tok = XmlIgnoreSectionTok(enc, s, end, &next);
++#  ifdef XML_DTD
++  if (! accountingDiffTolerated(parser, tok, s, next, __LINE__,
++                                XML_ACCOUNT_DIRECT)) {
++    accountingOnAbort(parser);
++    return XML_ERROR_AMPLIFICATION_LIMIT_BREACH;
++  }
++#  endif
+   *eventEndPP = next;
+   switch (tok) {
+   case XML_TOK_IGNORE_SECT:
+@@ -3803,6 +3971,15 @@ processXmlDecl(XML_Parser parser, int isGeneralTextEntity, const char *s,
+   const char *versionend;
+   const XML_Char *storedversion = NULL;
+   int standalone = -1;
++
++#ifdef XML_DTD
++  if (! accountingDiffTolerated(parser, XML_TOK_XML_DECL, s, next, __LINE__,
++                                XML_ACCOUNT_DIRECT)) {
++    accountingOnAbort(parser);
++    return XML_ERROR_AMPLIFICATION_LIMIT_BREACH;
++  }
++#endif
++
+   if (! (parser->m_ns ? XmlParseXmlDeclNS : XmlParseXmlDecl)(
+           isGeneralTextEntity, parser->m_encoding, s, next, &parser->m_eventPtr,
+           &version, &versionend, &encodingName, &newEncoding, &standalone)) {
+@@ -3952,6 +4129,10 @@ entityValueInitProcessor(XML_Parser parser, const char *s, const char *end,
+ 
+   for (;;) {
+     tok = XmlPrologTok(parser->m_encoding, start, end, &next);
++    /* Note: Except for XML_TOK_BOM below, these bytes are accounted later in:
++             - storeEntityValue
++             - processXmlDecl
++    */
+     parser->m_eventEndPtr = next;
+     if (tok <= 0) {
+       if (! parser->m_parsingStatus.finalBuffer && tok != XML_TOK_INVALID) {
+@@ -3970,7 +4151,8 @@ entityValueInitProcessor(XML_Parser parser, const char *s, const char *end,
+         break;
+       }
+       /* found end of entity value - can store it now */
+-      return storeEntityValue(parser, parser->m_encoding, s, end);
++      return storeEntityValue(parser, parser->m_encoding, s, end,
++                              XML_ACCOUNT_DIRECT);
+     } else if (tok == XML_TOK_XML_DECL) {
+       enum XML_Error result;
+       result = processXmlDecl(parser, 0, start, next);
+@@ -3997,6 +4179,14 @@ entityValueInitProcessor(XML_Parser parser, const char *s, const char *end,
+     */
+     else if (tok == XML_TOK_BOM && next == end
+              && ! parser->m_parsingStatus.finalBuffer) {
++#  ifdef XML_DTD
++      if (! accountingDiffTolerated(parser, tok, s, next, __LINE__,
++                                    XML_ACCOUNT_DIRECT)) {
++        accountingOnAbort(parser);
++        return XML_ERROR_AMPLIFICATION_LIMIT_BREACH;
++      }
++#  endif
++
+       *nextPtr = next;
+       return XML_ERROR_NONE;
+     }
+@@ -4039,16 +4229,24 @@ externalParEntProcessor(XML_Parser parser, const char *s, const char *end,
+   }
+   /* This would cause the next stage, i.e. doProlog to be passed XML_TOK_BOM.
+      However, when parsing an external subset, doProlog will not accept a BOM
+-     as valid, and report a syntax error, so we have to skip the BOM
++     as valid, and report a syntax error, so we have to skip the BOM, and
++     account for the BOM bytes.
+   */
+   else if (tok == XML_TOK_BOM) {
++    if (! accountingDiffTolerated(parser, tok, s, next, __LINE__,
++                                  XML_ACCOUNT_DIRECT)) {
++      accountingOnAbort(parser);
++      return XML_ERROR_AMPLIFICATION_LIMIT_BREACH;
++    }
++
+     s = next;
+     tok = XmlPrologTok(parser->m_encoding, s, end, &next);
+   }
+ 
+   parser->m_processor = prologProcessor;
+   return doProlog(parser, parser->m_encoding, s, end, tok, next, nextPtr,
+-                  (XML_Bool)! parser->m_parsingStatus.finalBuffer, XML_TRUE);
++                  (XML_Bool)! parser->m_parsingStatus.finalBuffer, XML_TRUE,
++                  XML_ACCOUNT_DIRECT);
+ }
+ 
+ static enum XML_Error PTRCALL
+@@ -4061,6 +4259,9 @@ entityValueProcessor(XML_Parser parser, const char *s, const char *end,
+ 
+   for (;;) {
+     tok = XmlPrologTok(enc, start, end, &next);
++    /* Note: These bytes are accounted later in:
++             - storeEntityValue
++    */
+     if (tok <= 0) {
+       if (! parser->m_parsingStatus.finalBuffer && tok != XML_TOK_INVALID) {
+         *nextPtr = s;
+@@ -4078,7 +4279,7 @@ entityValueProcessor(XML_Parser parser, const char *s, const char *end,
+         break;
+       }
+       /* found end of entity value - can store it now */
+-      return storeEntityValue(parser, enc, s, end);
++      return storeEntityValue(parser, enc, s, end, XML_ACCOUNT_DIRECT);
+     }
+     start = next;
+   }
+@@ -4092,13 +4293,14 @@ prologProcessor(XML_Parser parser, const char *s, const char *end,
+   const char *next = s;
+   int tok = XmlPrologTok(parser->m_encoding, s, end, &next);
+   return doProlog(parser, parser->m_encoding, s, end, tok, next, nextPtr,
+-                  (XML_Bool)! parser->m_parsingStatus.finalBuffer, XML_TRUE);
++                  (XML_Bool)! parser->m_parsingStatus.finalBuffer, XML_TRUE,
++                  XML_ACCOUNT_DIRECT);
+ }
+ 
+ static enum XML_Error
+ doProlog(XML_Parser parser, const ENCODING *enc, const char *s, const char *end,
+          int tok, const char *next, const char **nextPtr, XML_Bool haveMore,
+-         XML_Bool allowClosingDoctype) {
++         XML_Bool allowClosingDoctype, enum XML_Account account) {
+ #ifdef XML_DTD
+   static const XML_Char externalSubsetName[] = {ASCII_HASH, '\0'};
+ #endif /* XML_DTD */
+@@ -4125,6 +4327,10 @@ doProlog(XML_Parser parser, const ENCODING *enc, const char *s, const char *end,
+   static const XML_Char enumValueSep[] = {ASCII_PIPE, '\0'};
+   static const XML_Char enumValueStart[] = {ASCII_LPAREN, '\0'};
+ 
++#ifndef XML_DTD
++  UNUSED_P(account);
++#endif
++
+   /* save one level of indirection */
+   DTD *const dtd = parser->m_dtd;
+ 
+@@ -4189,6 +4395,19 @@ doProlog(XML_Parser parser, const ENCODING *enc, const char *s, const char *end,
+       }
+     }
+     role = XmlTokenRole(&parser->m_prologState, tok, s, next, enc);
++#ifdef XML_DTD
++    switch (role) {
++    case XML_ROLE_INSTANCE_START: // bytes accounted in contentProcessor
++    case XML_ROLE_XML_DECL:       // bytes accounted in processXmlDecl
++    case XML_ROLE_TEXT_DECL:      // bytes accounted in processXmlDecl
++      break;
++    default:
++      if (! accountingDiffTolerated(parser, tok, s, next, __LINE__, account)) {
++        accountingOnAbort(parser);
++        return XML_ERROR_AMPLIFICATION_LIMIT_BREACH;
++      }
++    }
++#endif
+     switch (role) {
+     case XML_ROLE_XML_DECL: {
+       enum XML_Error result = processXmlDecl(parser, 0, s, next);
+@@ -4464,7 +4683,8 @@ doProlog(XML_Parser parser, const ENCODING *enc, const char *s, const char *end,
+         const XML_Char *attVal;
+         enum XML_Error result = storeAttributeValue(
+             parser, enc, parser->m_declAttributeIsCdata,
+-            s + enc->minBytesPerChar, next - enc->minBytesPerChar, &dtd->pool);
++            s + enc->minBytesPerChar, next - enc->minBytesPerChar, &dtd->pool,
++            XML_ACCOUNT_NONE);
+         if (result)
+           return result;
+         attVal = poolStart(&dtd->pool);
+@@ -4497,8 +4717,9 @@ doProlog(XML_Parser parser, const ENCODING *enc, const char *s, const char *end,
+       break;
+     case XML_ROLE_ENTITY_VALUE:
+       if (dtd->keepProcessing) {
+-        enum XML_Error result = storeEntityValue(
+-            parser, enc, s + enc->minBytesPerChar, next - enc->minBytesPerChar);
++        enum XML_Error result
++            = storeEntityValue(parser, enc, s + enc->minBytesPerChar,
++                               next - enc->minBytesPerChar, XML_ACCOUNT_NONE);
+         if (parser->m_declEntity) {
+           parser->m_declEntity->textPtr = poolStart(&dtd->entityValuePool);
+           parser->m_declEntity->textLen
+@@ -4888,12 +5109,15 @@ doProlog(XML_Parser parser, const ENCODING *enc, const char *s, const char *end,
+         if (parser->m_externalEntityRefHandler) {
+           dtd->paramEntityRead = XML_FALSE;
+           entity->open = XML_TRUE;
++          entityTrackingOnOpen(parser, entity, __LINE__);
+           if (! parser->m_externalEntityRefHandler(
+                   parser->m_externalEntityRefHandlerArg, 0, entity->base,
+                   entity->systemId, entity->publicId)) {
++            entityTrackingOnClose(parser, entity, __LINE__);
+             entity->open = XML_FALSE;
+             return XML_ERROR_EXTERNAL_ENTITY_HANDLING;
+           }
++          entityTrackingOnClose(parser, entity, __LINE__);
+           entity->open = XML_FALSE;
+           handleDefault = XML_FALSE;
+           if (! dtd->paramEntityRead) {
+@@ -5091,6 +5315,13 @@ epilogProcessor(XML_Parser parser, const char *s, const char *end,
+   for (;;) {
+     const char *next = NULL;
+     int tok = XmlPrologTok(parser->m_encoding, s, end, &next);
++#ifdef XML_DTD
++    if (! accountingDiffTolerated(parser, tok, s, next, __LINE__,
++                                  XML_ACCOUNT_DIRECT)) {
++      accountingOnAbort(parser);
++      return XML_ERROR_AMPLIFICATION_LIMIT_BREACH;
++    }
++#endif
+     parser->m_eventEndPtr = next;
+     switch (tok) {
+     /* report partial linebreak - it might be the last token */
+@@ -5164,6 +5395,9 @@ processInternalEntity(XML_Parser parser, ENTITY *entity, XML_Bool betweenDecl) {
+       return XML_ERROR_NO_MEMORY;
+   }
+   entity->open = XML_TRUE;
++#ifdef XML_DTD
++  entityTrackingOnOpen(parser, entity, __LINE__);
++#endif
+   entity->processed = 0;
+   openEntity->next = parser->m_openInternalEntities;
+   parser->m_openInternalEntities = openEntity;
+@@ -5182,17 +5416,22 @@ processInternalEntity(XML_Parser parser, ENTITY *entity, XML_Bool betweenDecl) {
+     int tok
+         = XmlPrologTok(parser->m_internalEncoding, textStart, textEnd, &next);
+     result = doProlog(parser, parser->m_internalEncoding, textStart, textEnd,
+-                      tok, next, &next, XML_FALSE, XML_FALSE);
++                      tok, next, &next, XML_FALSE, XML_FALSE,
++                      XML_ACCOUNT_ENTITY_EXPANSION);
+   } else
+ #endif /* XML_DTD */
+     result = doContent(parser, parser->m_tagLevel, parser->m_internalEncoding,
+-                       textStart, textEnd, &next, XML_FALSE);
++                       textStart, textEnd, &next, XML_FALSE,
++                       XML_ACCOUNT_ENTITY_EXPANSION);
+ 
+   if (result == XML_ERROR_NONE) {
+     if (textEnd != next && parser->m_parsingStatus.parsing == XML_SUSPENDED) {
+       entity->processed = (int)(next - textStart);
+       parser->m_processor = internalEntityProcessor;
+     } else {
++#ifdef XML_DTD
++      entityTrackingOnClose(parser, entity, __LINE__);
++#endif /* XML_DTD */
+       entity->open = XML_FALSE;
+       parser->m_openInternalEntities = openEntity->next;
+       /* put openEntity back in list of free instances */
+@@ -5225,12 +5464,13 @@ internalEntityProcessor(XML_Parser parser, const char *s, const char *end,
+     int tok
+         = XmlPrologTok(parser->m_internalEncoding, textStart, textEnd, &next);
+     result = doProlog(parser, parser->m_internalEncoding, textStart, textEnd,
+-                      tok, next, &next, XML_FALSE, XML_TRUE);
++                      tok, next, &next, XML_FALSE, XML_TRUE,
++                      XML_ACCOUNT_ENTITY_EXPANSION);
+   } else
+ #endif /* XML_DTD */
+     result = doContent(parser, openEntity->startTagLevel,
+                        parser->m_internalEncoding, textStart, textEnd, &next,
+-                       XML_FALSE);
++                       XML_FALSE, XML_ACCOUNT_ENTITY_EXPANSION);
+ 
+   if (result != XML_ERROR_NONE)
+     return result;
+@@ -5239,6 +5479,9 @@ internalEntityProcessor(XML_Parser parser, const char *s, const char *end,
+     entity->processed = (int)(next - (char *)entity->textPtr);
+     return result;
+   } else {
++#ifdef XML_DTD
++    entityTrackingOnClose(parser, entity, __LINE__);
++#endif
+     entity->open = XML_FALSE;
+     parser->m_openInternalEntities = openEntity->next;
+     /* put openEntity back in list of free instances */
+@@ -5252,7 +5495,8 @@ internalEntityProcessor(XML_Parser parser, const char *s, const char *end,
+     parser->m_processor = prologProcessor;
+     tok = XmlPrologTok(parser->m_encoding, s, end, &next);
+     return doProlog(parser, parser->m_encoding, s, end, tok, next, nextPtr,
+-                    (XML_Bool)! parser->m_parsingStatus.finalBuffer, XML_TRUE);
++                    (XML_Bool)! parser->m_parsingStatus.finalBuffer, XML_TRUE,
++                    XML_ACCOUNT_DIRECT);
+   } else
+ #endif /* XML_DTD */
+   {
+@@ -5260,7 +5504,8 @@ internalEntityProcessor(XML_Parser parser, const char *s, const char *end,
+     /* see externalEntityContentProcessor vs contentProcessor */
+     return doContent(parser, parser->m_parentParser ? 1 : 0, parser->m_encoding,
+                      s, end, nextPtr,
+-                     (XML_Bool)! parser->m_parsingStatus.finalBuffer);
++                     (XML_Bool)! parser->m_parsingStatus.finalBuffer,
++                     XML_ACCOUNT_DIRECT);
+   }
+ }
+ 
+@@ -5275,9 +5520,10 @@ errorProcessor(XML_Parser parser, const char *s, const char *end,
+ 
+ static enum XML_Error
+ storeAttributeValue(XML_Parser parser, const ENCODING *enc, XML_Bool isCdata,
+-                    const char *ptr, const char *end, STRING_POOL *pool) {
++                    const char *ptr, const char *end, STRING_POOL *pool,
++                    enum XML_Account account) {
+   enum XML_Error result
+-      = appendAttributeValue(parser, enc, isCdata, ptr, end, pool);
++      = appendAttributeValue(parser, enc, isCdata, ptr, end, pool, account);
+   if (result)
+     return result;
+   if (! isCdata && poolLength(pool) && poolLastChar(pool) == 0x20)
+@@ -5289,11 +5535,22 @@ storeAttributeValue(XML_Parser parser, const ENCODING *enc, XML_Bool isCdata,
+ 
+ static enum XML_Error
+ appendAttributeValue(XML_Parser parser, const ENCODING *enc, XML_Bool isCdata,
+-                     const char *ptr, const char *end, STRING_POOL *pool) {
++                     const char *ptr, const char *end, STRING_POOL *pool,
++                     enum XML_Account account) {
+   DTD *const dtd = parser->m_dtd; /* save one level of indirection */
++#ifndef XML_DTD
++  UNUSED_P(account);
++#endif
++
+   for (;;) {
+     const char *next;
+     int tok = XmlAttributeValueTok(enc, ptr, end, &next);
++#ifdef XML_DTD
++    if (! accountingDiffTolerated(parser, tok, ptr, next, __LINE__, account)) {
++      accountingOnAbort(parser);
++      return XML_ERROR_AMPLIFICATION_LIMIT_BREACH;
++    }
++#endif
+     switch (tok) {
+     case XML_TOK_NONE:
+       return XML_ERROR_NONE;
+@@ -5353,6 +5610,14 @@ appendAttributeValue(XML_Parser parser, const ENCODING *enc, XML_Bool isCdata,
+       XML_Char ch = (XML_Char)XmlPredefinedEntityName(
+           enc, ptr + enc->minBytesPerChar, next - enc->minBytesPerChar);
+       if (ch) {
++#ifdef XML_DTD
++        /* NOTE: We are replacing 4-6 characters original input for 1 character
++         *       so there is no amplification and hence recording without
++         *       protection. */
++        accountingDiffTolerated(parser, tok, (char *)&ch,
++                                ((char *)&ch) + sizeof(XML_Char), __LINE__,
++                                XML_ACCOUNT_ENTITY_EXPANSION);
++#endif /* XML_DTD */
+         if (! poolAppendChar(pool, ch))
+           return XML_ERROR_NO_MEMORY;
+         break;
+@@ -5430,9 +5695,16 @@ appendAttributeValue(XML_Parser parser, const ENCODING *enc, XML_Bool isCdata,
+         enum XML_Error result;
+         const XML_Char *textEnd = entity->textPtr + entity->textLen;
+         entity->open = XML_TRUE;
++#ifdef XML_DTD
++        entityTrackingOnOpen(parser, entity, __LINE__);
++#endif
+         result = appendAttributeValue(parser, parser->m_internalEncoding,
+-                                      isCdata, (char *)entity->textPtr,
+-                                      (char *)textEnd, pool);
++                                      isCdata, (const char *)entity->textPtr,
++                                      (const char *)textEnd, pool,
++                                      XML_ACCOUNT_ENTITY_EXPANSION);
++#ifdef XML_DTD
++        entityTrackingOnClose(parser, entity, __LINE__);
++#endif
+         entity->open = XML_FALSE;
+         if (result)
+           return result;
+@@ -5462,13 +5734,16 @@ appendAttributeValue(XML_Parser parser, const ENCODING *enc, XML_Bool isCdata,
+ 
+ static enum XML_Error
+ storeEntityValue(XML_Parser parser, const ENCODING *enc,
+-                 const char *entityTextPtr, const char *entityTextEnd) {
++                 const char *entityTextPtr, const char *entityTextEnd,
++                 enum XML_Account account) {
+   DTD *const dtd = parser->m_dtd; /* save one level of indirection */
+   STRING_POOL *pool = &(dtd->entityValuePool);
+   enum XML_Error result = XML_ERROR_NONE;
+ #ifdef XML_DTD
+   int oldInEntityValue = parser->m_prologState.inEntityValue;
+   parser->m_prologState.inEntityValue = 1;
++#else
++  UNUSED_P(account);
+ #endif /* XML_DTD */
+   /* never return Null for the value argument in EntityDeclHandler,
+      since this would indicate an external entity; therefore we
+@@ -5481,6 +5756,16 @@ storeEntityValue(XML_Parser parser, const ENCODING *enc,
+   for (;;) {
+     const char *next;
+     int tok = XmlEntityValueTok(enc, entityTextPtr, entityTextEnd, &next);
++
++#ifdef XML_DTD
++    if (! accountingDiffTolerated(parser, tok, entityTextPtr, next, __LINE__,
++                                  account)) {
++      accountingOnAbort(parser);
++      result = XML_ERROR_AMPLIFICATION_LIMIT_BREACH;
++      goto endEntityValue;
++    }
++#endif
++
+     switch (tok) {
+     case XML_TOK_PARAM_ENTITY_REF:
+ #ifdef XML_DTD
+@@ -5516,13 +5801,16 @@ storeEntityValue(XML_Parser parser, const ENCODING *enc,
+           if (parser->m_externalEntityRefHandler) {
+             dtd->paramEntityRead = XML_FALSE;
+             entity->open = XML_TRUE;
++            entityTrackingOnOpen(parser, entity, __LINE__);
+             if (! parser->m_externalEntityRefHandler(
+                     parser->m_externalEntityRefHandlerArg, 0, entity->base,
+                     entity->systemId, entity->publicId)) {
++              entityTrackingOnClose(parser, entity, __LINE__);
+               entity->open = XML_FALSE;
+               result = XML_ERROR_EXTERNAL_ENTITY_HANDLING;
+               goto endEntityValue;
+             }
++            entityTrackingOnClose(parser, entity, __LINE__);
+             entity->open = XML_FALSE;
+             if (! dtd->paramEntityRead)
+               dtd->keepProcessing = dtd->standalone;
+@@ -5530,9 +5818,12 @@ storeEntityValue(XML_Parser parser, const ENCODING *enc,
+             dtd->keepProcessing = dtd->standalone;
+         } else {
+           entity->open = XML_TRUE;
++          entityTrackingOnOpen(parser, entity, __LINE__);
+           result = storeEntityValue(
+-              parser, parser->m_internalEncoding, (char *)entity->textPtr,
+-              (char *)(entity->textPtr + entity->textLen));
++              parser, parser->m_internalEncoding, (const char *)entity->textPtr,
++              (const char *)(entity->textPtr + entity->textLen),
++              XML_ACCOUNT_ENTITY_EXPANSION);
++          entityTrackingOnClose(parser, entity, __LINE__);
+           entity->open = XML_FALSE;
+           if (result)
+             goto endEntityValue;
+@@ -6893,3 +7184,741 @@ copyString(const XML_Char *s, const XML_Memory_Handling_Suite *memsuite) {
+   memcpy(result, s, charsRequired * sizeof(XML_Char));
+   return result;
+ }
++
++#ifdef XML_DTD
++
++static float
++accountingGetCurrentAmplification(XML_Parser rootParser) {
++  const XmlBigCount countBytesOutput
++      = rootParser->m_accounting.countBytesDirect
++        + rootParser->m_accounting.countBytesIndirect;
++  const float amplificationFactor
++      = rootParser->m_accounting.countBytesDirect
++            ? (countBytesOutput
++               / (float)(rootParser->m_accounting.countBytesDirect))
++            : 1.0f;
++  assert(! rootParser->m_parentParser);
++  return amplificationFactor;
++}
++
++static void
++accountingReportStats(XML_Parser originParser, const char *epilog) {
++  const XML_Parser rootParser = getRootParserOf(originParser, NULL);
++  assert(! rootParser->m_parentParser);
++
++  if (rootParser->m_accounting.debugLevel < 1) {
++    return;
++  }
++
++  const float amplificationFactor
++      = accountingGetCurrentAmplification(rootParser);
++  fprintf(stderr,
++          "expat: Accounting(%p): Direct " EXPAT_FMT_ULL(
++              "10") ", indirect " EXPAT_FMT_ULL("10") ", amplification %8.2f%s",
++          (void *)rootParser, rootParser->m_accounting.countBytesDirect,
++          rootParser->m_accounting.countBytesIndirect,
++          (double)amplificationFactor, epilog);
++}
++
++static void
++accountingOnAbort(XML_Parser originParser) {
++  accountingReportStats(originParser, " ABORTING\n");
++}
++
++static void
++accountingReportDiff(XML_Parser rootParser,
++                     unsigned int levelsAwayFromRootParser, const char *before,
++                     const char *after, ptrdiff_t bytesMore, int source_line,
++                     enum XML_Account account) {
++  assert(! rootParser->m_parentParser);
++
++  fprintf(stderr,
++          " (+" EXPAT_FMT_PTRDIFF_T("6") " bytes %s|%d, xmlparse.c:%d) %*s\"",
++          bytesMore, (account == XML_ACCOUNT_DIRECT) ? "DIR" : "EXP",
++          levelsAwayFromRootParser, source_line, 10, "");
++
++  const char ellipis[] = "[..]";
++  const size_t ellipsisLength = sizeof(ellipis) /* because compile-time */ - 1;
++  const unsigned int contextLength = 10;
++
++  /* Note: Performance is of no concern here */
++  const char *walker = before;
++  if ((rootParser->m_accounting.debugLevel >= 3)
++      || (after - before)
++             <= (ptrdiff_t)(contextLength + ellipsisLength + contextLength)) {
++    for (; walker < after; walker++) {
++      fprintf(stderr, "%s", unsignedCharToPrintable(walker[0]));
++    }
++  } else {
++    for (; walker < before + contextLength; walker++) {
++      fprintf(stderr, "%s", unsignedCharToPrintable(walker[0]));
++    }
++    fprintf(stderr, ellipis);
++    walker = after - contextLength;
++    for (; walker < after; walker++) {
++      fprintf(stderr, "%s", unsignedCharToPrintable(walker[0]));
++    }
++  }
++  fprintf(stderr, "\"\n");
++}
++
++static XML_Bool
++accountingDiffTolerated(XML_Parser originParser, int tok, const char *before,
++                        const char *after, int source_line,
++                        enum XML_Account account) {
++  /* Note: We need to check the token type *first* to be sure that
++   *       we can even access variable <after>, safely.
++   *       E.g. for XML_TOK_NONE <after> may hold an invalid pointer. */
++  switch (tok) {
++  case XML_TOK_INVALID:
++  case XML_TOK_PARTIAL:
++  case XML_TOK_PARTIAL_CHAR:
++  case XML_TOK_NONE:
++    return XML_TRUE;
++  }
++
++  if (account == XML_ACCOUNT_NONE)
++    return XML_TRUE; /* because these bytes have been accounted for, already */
++
++  unsigned int levelsAwayFromRootParser;
++  const XML_Parser rootParser
++      = getRootParserOf(originParser, &levelsAwayFromRootParser);
++  assert(! rootParser->m_parentParser);
++
++  const int isDirect
++      = (account == XML_ACCOUNT_DIRECT) && (originParser == rootParser);
++  const ptrdiff_t bytesMore = after - before;
++
++  XmlBigCount *const additionTarget
++      = isDirect ? &rootParser->m_accounting.countBytesDirect
++                 : &rootParser->m_accounting.countBytesIndirect;
++
++  /* Detect and avoid integer overflow */
++  if (*additionTarget > (XmlBigCount)(-1) - (XmlBigCount)bytesMore)
++    return XML_FALSE;
++  *additionTarget += bytesMore;
++
++  const XmlBigCount countBytesOutput
++      = rootParser->m_accounting.countBytesDirect
++        + rootParser->m_accounting.countBytesIndirect;
++  const float amplificationFactor
++      = accountingGetCurrentAmplification(rootParser);
++  const XML_Bool tolerated
++      = (countBytesOutput < rootParser->m_accounting.activationThresholdBytes)
++        || (amplificationFactor
++            <= rootParser->m_accounting.maximumAmplificationFactor);
++
++  if (rootParser->m_accounting.debugLevel >= 2) {
++    accountingReportStats(rootParser, "");
++    accountingReportDiff(rootParser, levelsAwayFromRootParser, before, after,
++                         bytesMore, source_line, account);
++  }
++
++  return tolerated;
++}
++
++static void
++entityTrackingReportStats(XML_Parser rootParser, ENTITY *entity,
++                          const char *action, int sourceLine) {
++  assert(! rootParser->m_parentParser);
++  if (rootParser->m_entity_stats.debugLevel < 1)
++    return;
++
++#  if defined(XML_UNICODE)
++  const char *const entityName = "[..]";
++#  else
++  const char *const entityName = entity->name;
++#  endif
++
++  fprintf(
++      stderr,
++      "expat: Entities(%p): Count %9d, depth %2d/%2d %*s%s%s; %s length %d (xmlparse.c:%d)\n",
++      (void *)rootParser, rootParser->m_entity_stats.countEverOpened,
++      rootParser->m_entity_stats.currentDepth,
++      rootParser->m_entity_stats.maximumDepthSeen,
++      (rootParser->m_entity_stats.currentDepth - 1) * 2, "",
++      entity->is_param ? "%" : "&", entityName, action, entity->textLen,
++      sourceLine);
++}
++
++static void
++entityTrackingOnOpen(XML_Parser originParser, ENTITY *entity, int sourceLine) {
++  const XML_Parser rootParser = getRootParserOf(originParser, NULL);
++  assert(! rootParser->m_parentParser);
++
++  rootParser->m_entity_stats.countEverOpened++;
++  rootParser->m_entity_stats.currentDepth++;
++  if (rootParser->m_entity_stats.currentDepth
++      > rootParser->m_entity_stats.maximumDepthSeen) {
++    rootParser->m_entity_stats.maximumDepthSeen++;
++  }
++
++  entityTrackingReportStats(rootParser, entity, "OPEN ", sourceLine);
++}
++
++static void
++entityTrackingOnClose(XML_Parser originParser, ENTITY *entity, int sourceLine) {
++  const XML_Parser rootParser = getRootParserOf(originParser, NULL);
++  assert(! rootParser->m_parentParser);
++
++  entityTrackingReportStats(rootParser, entity, "CLOSE", sourceLine);
++  rootParser->m_entity_stats.currentDepth--;
++}
++
++static XML_Parser
++getRootParserOf(XML_Parser parser, unsigned int *outLevelDiff) {
++  XML_Parser rootParser = parser;
++  unsigned int stepsTakenUpwards = 0;
++  while (rootParser->m_parentParser) {
++    rootParser = rootParser->m_parentParser;
++    stepsTakenUpwards++;
++  }
++  assert(! rootParser->m_parentParser);
++  if (outLevelDiff != NULL) {
++    *outLevelDiff = stepsTakenUpwards;
++  }
++  return rootParser;
++}
++
++static const char *
++unsignedCharToPrintable(unsigned char c) {
++  switch (c) {
++  case 0:
++    return "\\0";
++  case 1:
++    return "\\x1";
++  case 2:
++    return "\\x2";
++  case 3:
++    return "\\x3";
++  case 4:
++    return "\\x4";
++  case 5:
++    return "\\x5";
++  case 6:
++    return "\\x6";
++  case 7:
++    return "\\x7";
++  case 8:
++    return "\\x8";
++  case 9:
++    return "\\t";
++  case 10:
++    return "\\n";
++  case 11:
++    return "\\xB";
++  case 12:
++    return "\\xC";
++  case 13:
++    return "\\r";
++  case 14:
++    return "\\xE";
++  case 15:
++    return "\\xF";
++  case 16:
++    return "\\x10";
++  case 17:
++    return "\\x11";
++  case 18:
++    return "\\x12";
++  case 19:
++    return "\\x13";
++  case 20:
++    return "\\x14";
++  case 21:
++    return "\\x15";
++  case 22:
++    return "\\x16";
++  case 23:
++    return "\\x17";
++  case 24:
++    return "\\x18";
++  case 25:
++    return "\\x19";
++  case 26:
++    return "\\x1A";
++  case 27:
++    return "\\x1B";
++  case 28:
++    return "\\x1C";
++  case 29:
++    return "\\x1D";
++  case 30:
++    return "\\x1E";
++  case 31:
++    return "\\x1F";
++  case 32:
++    return " ";
++  case 33:
++    return "!";
++  case 34:
++    return "\\\"";
++  case 35:
++    return "#";
++  case 36:
++    return "$";
++  case 37:
++    return "%";
++  case 38:
++    return "&";
++  case 39:
++    return "'";
++  case 40:
++    return "(";
++  case 41:
++    return ")";
++  case 42:
++    return "*";
++  case 43:
++    return "+";
++  case 44:
++    return ",";
++  case 45:
++    return "-";
++  case 46:
++    return ".";
++  case 47:
++    return "/";
++  case 48:
++    return "0";
++  case 49:
++    return "1";
++  case 50:
++    return "2";
++  case 51:
++    return "3";
++  case 52:
++    return "4";
++  case 53:
++    return "5";
++  case 54:
++    return "6";
++  case 55:
++    return "7";
++  case 56:
++    return "8";
++  case 57:
++    return "9";
++  case 58:
++    return ":";
++  case 59:
++    return ";";
++  case 60:
++    return "<";
++  case 61:
++    return "=";
++  case 62:
++    return ">";
++  case 63:
++    return "?";
++  case 64:
++    return "@";
++  case 65:
++    return "A";
++  case 66:
++    return "B";
++  case 67:
++    return "C";
++  case 68:
++    return "D";
++  case 69:
++    return "E";
++  case 70:
++    return "F";
++  case 71:
++    return "G";
++  case 72:
++    return "H";
++  case 73:
++    return "I";
++  case 74:
++    return "J";
++  case 75:
++    return "K";
++  case 76:
++    return "L";
++  case 77:
++    return "M";
++  case 78:
++    return "N";
++  case 79:
++    return "O";
++  case 80:
++    return "P";
++  case 81:
++    return "Q";
++  case 82:
++    return "R";
++  case 83:
++    return "S";
++  case 84:
++    return "T";
++  case 85:
++    return "U";
++  case 86:
++    return "V";
++  case 87:
++    return "W";
++  case 88:
++    return "X";
++  case 89:
++    return "Y";
++  case 90:
++    return "Z";
++  case 91:
++    return "[";
++  case 92:
++    return "\\\\";
++  case 93:
++    return "]";
++  case 94:
++    return "^";
++  case 95:
++    return "_";
++  case 96:
++    return "`";
++  case 97:
++    return "a";
++  case 98:
++    return "b";
++  case 99:
++    return "c";
++  case 100:
++    return "d";
++  case 101:
++    return "e";
++  case 102:
++    return "f";
++  case 103:
++    return "g";
++  case 104:
++    return "h";
++  case 105:
++    return "i";
++  case 106:
++    return "j";
++  case 107:
++    return "k";
++  case 108:
++    return "l";
++  case 109:
++    return "m";
++  case 110:
++    return "n";
++  case 111:
++    return "o";
++  case 112:
++    return "p";
++  case 113:
++    return "q";
++  case 114:
++    return "r";
++  case 115:
++    return "s";
++  case 116:
++    return "t";
++  case 117:
++    return "u";
++  case 118:
++    return "v";
++  case 119:
++    return "w";
++  case 120:
++    return "x";
++  case 121:
++    return "y";
++  case 122:
++    return "z";
++  case 123:
++    return "{";
++  case 124:
++    return "|";
++  case 125:
++    return "}";
++  case 126:
++    return "~";
++  case 127:
++    return "\\x7F";
++  case 128:
++    return "\\x80";
++  case 129:
++    return "\\x81";
++  case 130:
++    return "\\x82";
++  case 131:
++    return "\\x83";
++  case 132:
++    return "\\x84";
++  case 133:
++    return "\\x85";
++  case 134:
++    return "\\x86";
++  case 135:
++    return "\\x87";
++  case 136:
++    return "\\x88";
++  case 137:
++    return "\\x89";
++  case 138:
++    return "\\x8A";
++  case 139:
++    return "\\x8B";
++  case 140:
++    return "\\x8C";
++  case 141:
++    return "\\x8D";
++  case 142:
++    return "\\x8E";
++  case 143:
++    return "\\x8F";
++  case 144:
++    return "\\x90";
++  case 145:
++    return "\\x91";
++  case 146:
++    return "\\x92";
++  case 147:
++    return "\\x93";
++  case 148:
++    return "\\x94";
++  case 149:
++    return "\\x95";
++  case 150:
++    return "\\x96";
++  case 151:
++    return "\\x97";
++  case 152:
++    return "\\x98";
++  case 153:
++    return "\\x99";
++  case 154:
++    return "\\x9A";
++  case 155:
++    return "\\x9B";
++  case 156:
++    return "\\x9C";
++  case 157:
++    return "\\x9D";
++  case 158:
++    return "\\x9E";
++  case 159:
++    return "\\x9F";
++  case 160:
++    return "\\xA0";
++  case 161:
++    return "\\xA1";
++  case 162:
++    return "\\xA2";
++  case 163:
++    return "\\xA3";
++  case 164:
++    return "\\xA4";
++  case 165:
++    return "\\xA5";
++  case 166:
++    return "\\xA6";
++  case 167:
++    return "\\xA7";
++  case 168:
++    return "\\xA8";
++  case 169:
++    return "\\xA9";
++  case 170:
++    return "\\xAA";
++  case 171:
++    return "\\xAB";
++  case 172:
++    return "\\xAC";
++  case 173:
++    return "\\xAD";
++  case 174:
++    return "\\xAE";
++  case 175:
++    return "\\xAF";
++  case 176:
++    return "\\xB0";
++  case 177:
++    return "\\xB1";
++  case 178:
++    return "\\xB2";
++  case 179:
++    return "\\xB3";
++  case 180:
++    return "\\xB4";
++  case 181:
++    return "\\xB5";
++  case 182:
++    return "\\xB6";
++  case 183:
++    return "\\xB7";
++  case 184:
++    return "\\xB8";
++  case 185:
++    return "\\xB9";
++  case 186:
++    return "\\xBA";
++  case 187:
++    return "\\xBB";
++  case 188:
++    return "\\xBC";
++  case 189:
++    return "\\xBD";
++  case 190:
++    return "\\xBE";
++  case 191:
++    return "\\xBF";
++  case 192:
++    return "\\xC0";
++  case 193:
++    return "\\xC1";
++  case 194:
++    return "\\xC2";
++  case 195:
++    return "\\xC3";
++  case 196:
++    return "\\xC4";
++  case 197:
++    return "\\xC5";
++  case 198:
++    return "\\xC6";
++  case 199:
++    return "\\xC7";
++  case 200:
++    return "\\xC8";
++  case 201:
++    return "\\xC9";
++  case 202:
++    return "\\xCA";
++  case 203:
++    return "\\xCB";
++  case 204:
++    return "\\xCC";
++  case 205:
++    return "\\xCD";
++  case 206:
++    return "\\xCE";
++  case 207:
++    return "\\xCF";
++  case 208:
++    return "\\xD0";
++  case 209:
++    return "\\xD1";
++  case 210:
++    return "\\xD2";
++  case 211:
++    return "\\xD3";
++  case 212:
++    return "\\xD4";
++  case 213:
++    return "\\xD5";
++  case 214:
++    return "\\xD6";
++  case 215:
++    return "\\xD7";
++  case 216:
++    return "\\xD8";
++  case 217:
++    return "\\xD9";
++  case 218:
++    return "\\xDA";
++  case 219:
++    return "\\xDB";
++  case 220:
++    return "\\xDC";
++  case 221:
++    return "\\xDD";
++  case 222:
++    return "\\xDE";
++  case 223:
++    return "\\xDF";
++  case 224:
++    return "\\xE0";
++  case 225:
++    return "\\xE1";
++  case 226:
++    return "\\xE2";
++  case 227:
++    return "\\xE3";
++  case 228:
++    return "\\xE4";
++  case 229:
++    return "\\xE5";
++  case 230:
++    return "\\xE6";
++  case 231:
++    return "\\xE7";
++  case 232:
++    return "\\xE8";
++  case 233:
++    return "\\xE9";
++  case 234:
++    return "\\xEA";
++  case 235:
++    return "\\xEB";
++  case 236:
++    return "\\xEC";
++  case 237:
++    return "\\xED";
++  case 238:
++    return "\\xEE";
++  case 239:
++    return "\\xEF";
++  case 240:
++    return "\\xF0";
++  case 241:
++    return "\\xF1";
++  case 242:
++    return "\\xF2";
++  case 243:
++    return "\\xF3";
++  case 244:
++    return "\\xF4";
++  case 245:
++    return "\\xF5";
++  case 246:
++    return "\\xF6";
++  case 247:
++    return "\\xF7";
++  case 248:
++    return "\\xF8";
++  case 249:
++    return "\\xF9";
++  case 250:
++    return "\\xFA";
++  case 251:
++    return "\\xFB";
++  case 252:
++    return "\\xFC";
++  case 253:
++    return "\\xFD";
++  case 254:
++    return "\\xFE";
++  case 255:
++    return "\\xFF";
++  default:
++    assert(0); /* never gets here */
++    return "dead code";
++  }
++  assert(0); /* never gets here */
++}
++
++#endif /* XML_DTD */
++
++static unsigned long
++getDebugLevel(const char *variableName, unsigned long defaultDebugLevel) {
++  const char *const valueOrNull = getenv(variableName);
++  if (valueOrNull == NULL) {
++    return defaultDebugLevel;
++  }
++  const char *const value = valueOrNull;
++
++  errno = 0;
++  char *afterValue = (char *)value;
++  unsigned long debugLevel = strtoul(value, &afterValue, 10);
++  if ((errno != 0) || (afterValue[0] != '\0')) {
++    errno = 0;
++    return defaultDebugLevel;
++  }
++
++  return debugLevel;
++}
+-- 
+2.32.0
+
diff --git a/meta/recipes-core/expat/expat/libtool-tag.patch b/meta/recipes-core/expat/expat/libtool-tag.patch
index 0a0aed23e5..c59ccbbede 100644
--- a/meta/recipes-core/expat/expat/libtool-tag.patch
+++ b/meta/recipes-core/expat/expat/libtool-tag.patch
@@ -1,30 +1,27 @@
-From 10342e6b600858b091bc7771e454d9e06af06410 Mon Sep 17 00:00:00 2001
-From: Khem Raj <raj.khem@gmail.com>
-Date: Thu, 2 Nov 2017 18:20:57 +0800
+From da433dbe79f2d4d5d7d79869c669594c99c5de9c Mon Sep 17 00:00:00 2001
+From: Jasper Orschulko <jasper@fancydomain.eu>
+Date: Wed, 16 Jun 2021 19:00:30 +0200
 Subject: [PATCH] Add CC tag to build
 
-Add CC tag to build
-
 Upstream-Status: Pending
-Signed-off-by: Khem Raj <raj.khem@gmail.com>
-Signed-off-by: Dengke Du <dengke.du@windriver.com>
+Signed-off-by: Jasper Orschulko <jasper@fancydomain.eu>
 ---
- Makefile.in | 2 +-
+ Makefile.am | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)
 
-diff --git a/Makefile.in b/Makefile.in
-index 9560a95..d444bd6 100644
---- a/Makefile.in
-+++ b/Makefile.in
-@@ -319,7 +319,7 @@ LIBCURRENT = @LIBCURRENT@
- LIBOBJS = @LIBOBJS@
- LIBREVISION = @LIBREVISION@
- LIBS = @LIBS@
--LIBTOOL = @LIBTOOL@
-+LIBTOOL = @LIBTOOL@ --tag CC
- LIPO = @LIPO@
- LN_S = @LN_S@
- LTLIBOBJS = @LTLIBOBJS@
+diff --git a/Makefile.am b/Makefile.am
+index 5e1d37dd..f7a6dece 100644
+--- a/Makefile.am
++++ b/Makefile.am
+@@ -36,7 +36,7 @@ AUTOMAKE_OPTIONS = \
+     subdir-objects
+ 
+ ACLOCAL_AMFLAGS = -I m4
+-LIBTOOLFLAGS = --verbose
++LIBTOOLFLAGS = --verbose --tag=CC
+ 
+ SUBDIRS = lib # lib goes first to build first
+ if WITH_EXAMPLES
 -- 
-2.7.4
+2.32.0
 
diff --git a/meta/recipes-core/expat/expat_2.2.9.bb b/meta/recipes-core/expat/expat_2.2.9.bb
index 174bf4be1f..cd38df91d9 100644
--- a/meta/recipes-core/expat/expat_2.2.9.bb
+++ b/meta/recipes-core/expat/expat_2.2.9.bb
@@ -6,18 +6,16 @@ LICENSE = "MIT"
 
 LIC_FILES_CHKSUM = "file://COPYING;md5=5b8620d98e49772d95fc1d291c26aa79"
 
-SRC_URI = "${SOURCEFORGE_MIRROR}/expat/expat-${PV}.tar.bz2 \
+SRC_URI = "git://github.com/libexpat/libexpat.git;protocol=https \
+           file://CVE-2013-0340.patch \
            file://libtool-tag.patch \
-	  "
+         "
 
-SRC_URI[md5sum] = "875a2c2ff3e8eb9e5a5cd62db2033ab5"
-SRC_URI[sha256sum] = "f1063084dc4302a427dabcca499c8312b3a32a29b7d2506653ecc8f950a9a237"
+SRCREV = "a7bc26b69768f7fb24f0c7976fae24b157b85b13"
 
 inherit autotools lib_package
 
-do_configure_prepend () {
-	rm -f ${S}/conftools/libtool.m4
-}
+S = "${WORKDIR}/git/expat"
 
 BBCLASSEXTEND = "native nativesdk"