PCRE: update to 10.36

Dropped the RTEMS patch (upstream now uses posix_madvise).
Drop support for the TILE architecture (dropped by upstream).

[ChangeLog][Third-Party Code] PCRE2 has been updated to version
10.36.

Pick-to: 6.0 5.15
Change-Id: Idb4467bef0ff520605b8b5d9188b9d67d8e4d0f2
Reviewed-by: Lars Knoll <lars.knoll@qt.io>

1 files changed, 28 insertions, 18 deletions

diff --git a/src/3rdparty/pcre2/src/sljit/sljitConfig.h b/src/3rdparty/pcre2/src/sljit/sljitConfig.h
index 4560450c1c..1c821d287d 100644
--- a/src/3rdparty/pcre2/src/sljit/sljitConfig.h
+++ b/src/3rdparty/pcre2/src/sljit/sljitConfig.h
@@ -24,19 +24,19 @@
  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef _SLJIT_CONFIG_H_
-#define _SLJIT_CONFIG_H_
+#ifndef SLJIT_CONFIG_H_
+#define SLJIT_CONFIG_H_
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
-/* --------------------------------------------------------------------- */
-/*  Custom defines                                                       */
-/* --------------------------------------------------------------------- */
-
-/* Put your custom defines here. This empty section will never change
-   which helps maintaining patches (with diff / patch utilities). */
+/*
+  This file contains the basic configuration options for the SLJIT compiler
+  and their default values. These options can be overridden in the
+  sljitConfigPre.h header file when SLJIT_HAVE_CONFIG_PRE is set to a
+  non-zero value.
+*/
 
 /* --------------------------------------------------------------------- */
 /*  Architecture                                                         */
@@ -54,7 +54,7 @@ extern "C" {
 /* #define SLJIT_CONFIG_MIPS_32 1 */
 /* #define SLJIT_CONFIG_MIPS_64 1 */
 /* #define SLJIT_CONFIG_SPARC_32 1 */
-/* #define SLJIT_CONFIG_TILEGX 1 */
+/* #define SLJIT_CONFIG_S390X 1 */
 
 /* #define SLJIT_CONFIG_AUTO 1 */
 /* #define SLJIT_CONFIG_UNSUPPORTED 1 */
@@ -63,12 +63,6 @@ extern "C" {
 /*  Utilities                                                            */
 /* --------------------------------------------------------------------- */
 
-/* Useful for thread-safe compiling of global functions. */
-#ifndef SLJIT_UTIL_GLOBAL_LOCK
-/* Enabled by default */
-#define SLJIT_UTIL_GLOBAL_LOCK 1
-#endif
-
 /* Implements a stack like data structure (by using mmap / VirtualAlloc  */
 /* or a custom allocator). */
 #ifndef SLJIT_UTIL_STACK
@@ -108,15 +102,31 @@ extern "C" {
 
 /* When SLJIT_PROT_EXECUTABLE_ALLOCATOR is enabled SLJIT uses
    an allocator which does not set writable and executable
-   permission flags at the same time. The trade-of is increased
-   memory consumption and disabled dynamic code modifications. */
+   permission flags at the same time.
+   Instead, it creates a shared memory segment (usually backed by a file)
+   and maps it twice, with different permissions, depending on the use
+   case.
+   The trade-off is increased use of virtual memory, incompatibility with
+   fork(), and some possible additional security risks by the use of
+   publicly accessible files for the generated code. */
 #ifndef SLJIT_PROT_EXECUTABLE_ALLOCATOR
 /* Disabled by default. */
 #define SLJIT_PROT_EXECUTABLE_ALLOCATOR 0
 #endif
 
+/* When SLJIT_WX_EXECUTABLE_ALLOCATOR is enabled SLJIT uses an
+   allocator which does not set writable and executable permission
+   flags at the same time.
+   Instead, it creates a new independent map on each invocation and
+   switches permissions at the underlying pages as needed.
+   The trade-off is increased memory use and degraded performance. */
+#ifndef SLJIT_WX_EXECUTABLE_ALLOCATOR
+/* Disabled by default. */
+#define SLJIT_WX_EXECUTABLE_ALLOCATOR 0
 #endif
 
+#endif /* !SLJIT_EXECUTABLE_ALLOCATOR */
+
 /* Force cdecl calling convention even if a better calling
    convention (e.g. fastcall) is supported by the C compiler.
    If this option is disabled (this is the default), functions
@@ -159,4 +169,4 @@ extern "C" {
 } /* extern "C" */
 #endif
 
-#endif
+#endif /* SLJIT_CONFIG_H_ */