1 files changed, 0 insertions, 225 deletions
diff --git a/src/3rdparty/pcre2/src/sljit/sljitWXExecAllocator.c b/src/3rdparty/pcre2/src/sljit/sljitWXExecAllocator.c
deleted file mode 100644
index 6ef71f7d83..0000000000
--- a/src/3rdparty/pcre2/src/sljit/sljitWXExecAllocator.c
+++ /dev/null
@@ -1,225 +0,0 @@
-/*
- *    Stack-less Just-In-Time compiler
- *
- *    Copyright Zoltan Herczeg (hzmester@freemail.hu). All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modification, are
- * permitted provided that the following conditions are met:
- *
- *   1. Redistributions of source code must retain the above copyright notice, this list of
- *      conditions and the following disclaimer.
- *
- *   2. 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.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) 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 HOLDER(S) 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.
- */
-
-/*
-   This file contains a simple W^X executable memory allocator for POSIX
-   like systems and Windows
-
-   In *NIX, MAP_ANON is required (that is considered a feature) so make
-   sure to set the right availability macros for your system or the code
-   will fail to build.
-
-   If your system doesn't support mapping of anonymous pages (ex: IRIX) it
-   is also likely that it doesn't need this allocator and should be using
-   the standard one instead.
-
-   It allocates a separate map for each code block and may waste a lot of
-   memory, because whatever was requested, will be rounded up to the page
-   size (minimum 4KB, but could be even bigger).
-
-   It changes the page permissions (RW <-> RX) as needed and therefore, if you
-   will be updating the code after it has been generated, need to make sure to
-   block any concurrent execution, or could result in a SIGBUS, that could
-   even manifest itself at a different address than the one that was being
-   modified.
-
-   Only use if you are unable to use the regular allocator because of security
-   restrictions and adding exceptions to your application or the system are
-   not possible.
-*/
-
-#define SLJIT_UPDATE_WX_FLAGS(from, to, enable_exec) \
-	sljit_update_wx_flags((from), (to), (enable_exec))
-
-#ifndef _WIN32
-#include <sys/types.h>
-#include <sys/mman.h>
-
-#ifdef __NetBSD__
-#if defined(PROT_MPROTECT)
-#define check_se_protected(ptr, size) (0)
-#define SLJIT_PROT_WX PROT_MPROTECT(PROT_EXEC)
-#else /* !PROT_MPROTECT */
-#ifdef _NETBSD_SOURCE
-#include <sys/param.h>
-#else /* !_NETBSD_SOURCE */
-typedef unsigned int	u_int;
-#define devmajor_t sljit_s32
-#endif /* _NETBSD_SOURCE */
-#include <sys/sysctl.h>
-#include <unistd.h>
-
-#define check_se_protected(ptr, size) netbsd_se_protected()
-
-static SLJIT_INLINE int netbsd_se_protected(void)
-{
-	int mib[3];
-	int paxflags;
-	size_t len = sizeof(paxflags);
-
-	mib[0] = CTL_PROC;
-	mib[1] = getpid();
-	mib[2] = PROC_PID_PAXFLAGS;
-
-	if (SLJIT_UNLIKELY(sysctl(mib, 3, &paxflags, &len, NULL, 0) < 0))
-		return -1;
-
-	return (paxflags & CTL_PROC_PAXFLAGS_MPROTECT) ? -1 : 0;
-}
-#endif /* PROT_MPROTECT */
-#else /* POSIX */
-#define check_se_protected(ptr, size) generic_se_protected(ptr, size)
-
-static SLJIT_INLINE int generic_se_protected(void *ptr, sljit_uw size)
-{
-	if (SLJIT_LIKELY(!mprotect(ptr, size, PROT_EXEC)))
-		return mprotect(ptr, size, PROT_READ | PROT_WRITE);
-
-	return -1;
-}
-#endif /* NetBSD */
-
-#if defined SLJIT_SINGLE_THREADED && SLJIT_SINGLE_THREADED
-#define SLJIT_SE_LOCK()
-#define SLJIT_SE_UNLOCK()
-#else /* !SLJIT_SINGLE_THREADED */
-#include <pthread.h>
-#define SLJIT_SE_LOCK()	pthread_mutex_lock(&se_lock)
-#define SLJIT_SE_UNLOCK()	pthread_mutex_unlock(&se_lock)
-#endif /* SLJIT_SINGLE_THREADED */
-
-#ifndef SLJIT_PROT_WX
-#define SLJIT_PROT_WX 0
-#endif /* !SLJIT_PROT_WX */
-
-SLJIT_API_FUNC_ATTRIBUTE void* sljit_malloc_exec(sljit_uw size)
-{
-#if !(defined SLJIT_SINGLE_THREADED && SLJIT_SINGLE_THREADED)
-	static pthread_mutex_t se_lock = PTHREAD_MUTEX_INITIALIZER;
-#endif
-	static int se_protected = !SLJIT_PROT_WX;
-	sljit_uw* ptr;
-
-	if (SLJIT_UNLIKELY(se_protected < 0))
-		return NULL;
-
-	size += sizeof(sljit_uw);
-	ptr = (sljit_uw*)mmap(NULL, size, PROT_READ | PROT_WRITE | SLJIT_PROT_WX,
-				MAP_PRIVATE | MAP_ANON, -1, 0);
-
-	if (ptr == MAP_FAILED)
-		return NULL;
-
-	if (SLJIT_UNLIKELY(se_protected > 0)) {
-		SLJIT_SE_LOCK();
-		se_protected = check_se_protected(ptr, size);
-		SLJIT_SE_UNLOCK();
-		if (SLJIT_UNLIKELY(se_protected < 0)) {
-			munmap((void *)ptr, size);
-			return NULL;
-		}
-	}
-
-	*ptr++ = size;
-	return ptr;
-}
-
-#undef SLJIT_PROT_WX
-#undef SLJIT_SE_UNLOCK
-#undef SLJIT_SE_LOCK
-
-SLJIT_API_FUNC_ATTRIBUTE void sljit_free_exec(void* ptr)
-{
-	sljit_uw *start_ptr = ((sljit_uw*)ptr) - 1;
-	munmap((void*)start_ptr, *start_ptr);
-}
-
-static void sljit_update_wx_flags(void *from, void *to, sljit_s32 enable_exec)
-{
-	sljit_uw page_mask = (sljit_uw)get_page_alignment();
-	sljit_uw start = (sljit_uw)from;
-	sljit_uw end = (sljit_uw)to;
-	int prot = PROT_READ | (enable_exec ? PROT_EXEC : PROT_WRITE);
-
-	SLJIT_ASSERT(start < end);
-
-	start &= ~page_mask;
-	end = (end + page_mask) & ~page_mask;
-
-	mprotect((void*)start, end - start, prot);
-}
-
-#else /* windows */
-
-SLJIT_API_FUNC_ATTRIBUTE void* sljit_malloc_exec(sljit_uw size)
-{
-	sljit_uw *ptr;
-
-	size += sizeof(sljit_uw);
-	ptr = (sljit_uw*)VirtualAlloc(NULL, size,
-				MEM_COMMIT | MEM_RESERVE, PAGE_READWRITE);
-
-	if (!ptr)
-		return NULL;
-
-	*ptr++ = size;
-
-	return ptr;
-}
-
-SLJIT_API_FUNC_ATTRIBUTE void sljit_free_exec(void* ptr)
-{
-	sljit_uw start = (sljit_uw)ptr - sizeof(sljit_uw);
-#if defined(SLJIT_DEBUG) && SLJIT_DEBUG
-	sljit_uw page_mask = (sljit_uw)get_page_alignment();
-
-	SLJIT_ASSERT(!(start & page_mask));
-#endif
-	VirtualFree((void*)start, 0, MEM_RELEASE);
-}
-
-static void sljit_update_wx_flags(void *from, void *to, sljit_s32 enable_exec)
-{
-	DWORD oldprot;
-	sljit_uw page_mask = (sljit_uw)get_page_alignment();
-	sljit_uw start = (sljit_uw)from;
-	sljit_uw end = (sljit_uw)to;
-	DWORD prot = enable_exec ? PAGE_EXECUTE : PAGE_READWRITE;
-
-	SLJIT_ASSERT(start < end);
-
-	start &= ~page_mask;
-	end = (end + page_mask) & ~page_mask;
-
-	VirtualProtect((void*)start, end - start, prot, &oldprot);
-}
-
-#endif /* !windows */
-
-SLJIT_API_FUNC_ATTRIBUTE void sljit_free_unused_memory_exec(void)
-{
-	/* This allocator does not keep unused memory for future allocations. */
-}