diff options
Diffstat (limited to 'src/3rdparty/pcre2/src/sljit/sljitConfig.h')
| -rw-r--r-- | src/3rdparty/pcre2/src/sljit/sljitConfig.h | 78 |
1 files changed, 29 insertions, 49 deletions
diff --git a/src/3rdparty/pcre2/src/sljit/sljitConfig.h b/src/3rdparty/pcre2/src/sljit/sljitConfig.h index 4560450c1c..364c8bb788 100644 --- a/src/3rdparty/pcre2/src/sljit/sljitConfig.h +++ b/src/3rdparty/pcre2/src/sljit/sljitConfig.h @@ -24,51 +24,24 @@ * 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). */ - -/* --------------------------------------------------------------------- */ -/* Architecture */ -/* --------------------------------------------------------------------- */ - -/* Architecture selection. */ -/* #define SLJIT_CONFIG_X86_32 1 */ -/* #define SLJIT_CONFIG_X86_64 1 */ -/* #define SLJIT_CONFIG_ARM_V5 1 */ -/* #define SLJIT_CONFIG_ARM_V7 1 */ -/* #define SLJIT_CONFIG_ARM_THUMB2 1 */ -/* #define SLJIT_CONFIG_ARM_64 1 */ -/* #define SLJIT_CONFIG_PPC_32 1 */ -/* #define SLJIT_CONFIG_PPC_64 1 */ -/* #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_AUTO 1 */ -/* #define SLJIT_CONFIG_UNSUPPORTED 1 */ +/* + 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. +*/ /* --------------------------------------------------------------------- */ /* 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 @@ -101,32 +74,39 @@ extern "C" { /* Executable code allocation: If SLJIT_EXECUTABLE_ALLOCATOR is not defined, the application should - define SLJIT_MALLOC_EXEC, SLJIT_FREE_EXEC, and SLJIT_EXEC_OFFSET. */ + define SLJIT_MALLOC_EXEC and SLJIT_FREE_EXEC. + Optionally, depending on the implementation used for the allocator, + SLJIT_EXEC_OFFSET and SLJIT_UPDATE_WX_FLAGS might also be needed. */ #ifndef SLJIT_EXECUTABLE_ALLOCATOR /* Enabled by default. */ #define SLJIT_EXECUTABLE_ALLOCATOR 1 /* 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 -/* 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 - called from JIT should be defined with SLJIT_FUNC attribute. - Standard C functions can still be called by using the - SLJIT_CALL_CDECL jump type. */ -#ifndef SLJIT_USE_CDECL_CALLING_CONVENTION -/* Disabled by default */ -#define SLJIT_USE_CDECL_CALLING_CONVENTION 0 -#endif +#endif /* !SLJIT_EXECUTABLE_ALLOCATOR */ /* Return with error when an invalid argument is passed. */ #ifndef SLJIT_ARGUMENT_CHECKS @@ -159,4 +139,4 @@ extern "C" { } /* extern "C" */ #endif -#endif +#endif /* SLJIT_CONFIG_H_ */ |