Upgrade libpcre to PCRE2 10.42. Windows/macOS builds not completed.

2025-12-16 12:49:02 +00:00 · 2023-06-24 01:53:07 +00:00
parent 8dbdaa7b99
commit 828ab48764
117 changed files with 92355 additions and 29595 deletions
--- a/libpcre/src/pcre2_jit_compile.c
+++ b/libpcre/src/pcre2_jit_compile.c
@@ -0,0 +1,149 @@
+/*************************************************
+*      Perl-Compatible Regular Expressions       *
+*************************************************/
+
+/* PCRE is a library of functions to support regular expressions whose syntax
+and semantics are as close as possible to those of the Perl 5 language.
+
+                       Written by Philip Hazel
+                    This module by Zoltan Herczeg
+     Original API code Copyright (c) 1997-2012 University of Cambridge
+          New API code Copyright (c) 2016-2021 University of Cambridge
+
+-----------------------------------------------------------------------------
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+
+    * Neither the name of the University of Cambridge nor the names of its
+      contributors may be used to endorse or promote products derived from
+      this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+-----------------------------------------------------------------------------
+*/
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "pcre2_internal.h"
+
+#ifdef SUPPORT_JIT
+/* NMAP_MODIFICATIONS */
+#endif
+
+/*************************************************
+*        JIT compile a Regular Expression        *
+*************************************************/
+
+/* This function used JIT to convert a previously-compiled pattern into machine
+code.
+
+Arguments:
+  code          a compiled pattern
+  options       JIT option bits
+
+Returns:        0: success or (*NOJIT) was used
+               <0: an error code
+*/
+
+#define PUBLIC_JIT_COMPILE_OPTIONS \
+  (PCRE2_JIT_COMPLETE|PCRE2_JIT_PARTIAL_SOFT|PCRE2_JIT_PARTIAL_HARD|PCRE2_JIT_INVALID_UTF)
+
+PCRE2_EXP_DEFN int PCRE2_CALL_CONVENTION
+pcre2_jit_compile(pcre2_code *code, uint32_t options)
+{
+pcre2_real_code *re = (pcre2_real_code *)code;
+#ifdef SUPPORT_JIT
+executable_functions *functions;
+static int executable_allocator_is_working = -1;
+#endif
+
+if (code == NULL)
+  return PCRE2_ERROR_NULL;
+
+if ((options & ~PUBLIC_JIT_COMPILE_OPTIONS) != 0)
+  return PCRE2_ERROR_JIT_BADOPTION;
+
+/* Support for invalid UTF was first introduced in JIT, with the option
+PCRE2_JIT_INVALID_UTF. Later, support was added to the interpreter, and the
+compile-time option PCRE2_MATCH_INVALID_UTF was created. This is now the
+preferred feature, with the earlier option deprecated. However, for backward
+compatibility, if the earlier option is set, it forces the new option so that
+if JIT matching falls back to the interpreter, there is still support for
+invalid UTF. However, if this function has already been successfully called
+without PCRE2_JIT_INVALID_UTF and without PCRE2_MATCH_INVALID_UTF (meaning that
+non-invalid-supporting JIT code was compiled), give an error.
+
+If in the future support for PCRE2_JIT_INVALID_UTF is withdrawn, the following
+actions are needed:
+
+  1. Remove the definition from pcre2.h.in and from the list in
+     PUBLIC_JIT_COMPILE_OPTIONS above.
+
+  2. Replace PCRE2_JIT_INVALID_UTF with a local flag in this module.
+
+  3. Replace PCRE2_JIT_INVALID_UTF in pcre2_jit_test.c.
+
+  4. Delete the following short block of code. The setting of "re" and
+     "functions" can be moved into the JIT-only block below, but if that is
+     done, (void)re and (void)functions will be needed in the non-JIT case, to
+     avoid compiler warnings.
+*/
+
+#ifdef SUPPORT_JIT
+functions = (executable_functions *)re->executable_jit;
+#endif
+
+if ((options & PCRE2_JIT_INVALID_UTF) != 0)
+  {
+  if ((re->overall_options & PCRE2_MATCH_INVALID_UTF) == 0)
+    {
+#ifdef SUPPORT_JIT
+    if (functions != NULL) return PCRE2_ERROR_JIT_BADOPTION;
+#endif
+    re->overall_options |= PCRE2_MATCH_INVALID_UTF;
+    }
+  }
+
+/* The above tests are run with and without JIT support. This means that
+PCRE2_JIT_INVALID_UTF propagates back into the regex options (ensuring
+interpreter support) even in the absence of JIT. But now, if there is no JIT
+support, give an error return. */
+
+#ifndef SUPPORT_JIT
+return PCRE2_ERROR_JIT_BADOPTION;
+#else  /* SUPPORT_JIT */
+/* NMAP_MODIFICATIONS */
+#endif  /* SUPPORT_JIT */
+}
+
+/* JIT compiler uses an all-in-one approach. This improves security,
+   since the code generator functions are not exported. */
+
+#define INCLUDED_FROM_PCRE2_JIT_COMPILE
+
+#if 0
+/* NMAP_MODIFICATIONS */
+#include "pcre2_jit_match.c"
+#include "pcre2_jit_misc.c"
+#endif
+
+/* End of pcre2_jit_compile.c */