1 /* 2 * Stack-less Just-In-Time compiler 3 * 4 * Copyright Zoltan Herczeg (hzmester@freemail.hu). All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without modification, are 7 * permitted provided that the following conditions are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright notice, this list of 10 * conditions and the following disclaimer. 11 * 12 * 2. Redistributions in binary form must reproduce the above copyright notice, this list 13 * of conditions and the following disclaimer in the documentation and/or other materials 14 * provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) AND CONTRIBUTORS ``AS IS'' AND ANY 17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 19 * SHALL THE COPYRIGHT HOLDER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 21 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 22 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 24 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #ifndef SLJIT_CONFIG_H_ 28 #define SLJIT_CONFIG_H_ 29 30 #ifdef __cplusplus 31 extern "C" { 32 #endif 33 34 /* 35 This file contains the basic configuration options for the SLJIT compiler 36 and their default values. These options can be overridden in the 37 sljitConfigPre.h header file when SLJIT_HAVE_CONFIG_PRE is set to a 38 non-zero value. 39 */ 40 41 /* --------------------------------------------------------------------- */ 42 /* Architecture */ 43 /* --------------------------------------------------------------------- */ 44 45 /* Architecture selection. */ 46 /* #define SLJIT_CONFIG_X86_32 1 */ 47 /* #define SLJIT_CONFIG_X86_64 1 */ 48 /* #define SLJIT_CONFIG_ARM_V5 1 */ 49 /* #define SLJIT_CONFIG_ARM_V7 1 */ 50 /* #define SLJIT_CONFIG_ARM_THUMB2 1 */ 51 /* #define SLJIT_CONFIG_ARM_64 1 */ 52 /* #define SLJIT_CONFIG_PPC_32 1 */ 53 /* #define SLJIT_CONFIG_PPC_64 1 */ 54 /* #define SLJIT_CONFIG_MIPS_32 1 */ 55 /* #define SLJIT_CONFIG_MIPS_64 1 */ 56 /* #define SLJIT_CONFIG_SPARC_32 1 */ 57 /* #define SLJIT_CONFIG_S390X 1 */ 58 59 /* #define SLJIT_CONFIG_AUTO 1 */ 60 /* #define SLJIT_CONFIG_UNSUPPORTED 1 */ 61 62 /* --------------------------------------------------------------------- */ 63 /* Utilities */ 64 /* --------------------------------------------------------------------- */ 65 66 /* Implements a stack like data structure (by using mmap / VirtualAlloc */ 67 /* or a custom allocator). */ 68 #ifndef SLJIT_UTIL_STACK 69 /* Enabled by default */ 70 #define SLJIT_UTIL_STACK 1 71 #endif 72 73 /* Uses user provided allocator to allocate the stack (see SLJIT_UTIL_STACK) */ 74 #ifndef SLJIT_UTIL_SIMPLE_STACK_ALLOCATION 75 /* Disabled by default */ 76 #define SLJIT_UTIL_SIMPLE_STACK_ALLOCATION 0 77 #endif 78 79 /* Single threaded application. Does not require any locks. */ 80 #ifndef SLJIT_SINGLE_THREADED 81 /* Disabled by default. */ 82 #define SLJIT_SINGLE_THREADED 0 83 #endif 84 85 /* --------------------------------------------------------------------- */ 86 /* Configuration */ 87 /* --------------------------------------------------------------------- */ 88 89 /* If SLJIT_STD_MACROS_DEFINED is not defined, the application should 90 define SLJIT_MALLOC, SLJIT_FREE, SLJIT_MEMCPY, and NULL. */ 91 #ifndef SLJIT_STD_MACROS_DEFINED 92 /* Disabled by default. */ 93 #define SLJIT_STD_MACROS_DEFINED 0 94 #endif 95 96 /* Executable code allocation: 97 If SLJIT_EXECUTABLE_ALLOCATOR is not defined, the application should 98 define SLJIT_MALLOC_EXEC, SLJIT_FREE_EXEC, and SLJIT_EXEC_OFFSET. */ 99 #ifndef SLJIT_EXECUTABLE_ALLOCATOR 100 /* Enabled by default. */ 101 #define SLJIT_EXECUTABLE_ALLOCATOR 1 102 103 /* When SLJIT_PROT_EXECUTABLE_ALLOCATOR is enabled SLJIT uses 104 an allocator which does not set writable and executable 105 permission flags at the same time. 106 Instead, it creates a shared memory segment (usually backed by a file) 107 and maps it twice, with different permissions, depending on the use 108 case. 109 The trade-off is increased use of virtual memory, incompatibility with 110 fork(), and some possible additional security risks by the use of 111 publicly accessible files for the generated code. */ 112 #ifndef SLJIT_PROT_EXECUTABLE_ALLOCATOR 113 /* Disabled by default. */ 114 #define SLJIT_PROT_EXECUTABLE_ALLOCATOR 0 115 #endif 116 117 /* When SLJIT_WX_EXECUTABLE_ALLOCATOR is enabled SLJIT uses an 118 allocator which does not set writable and executable permission 119 flags at the same time. 120 Instead, it creates a new independent map on each invocation and 121 switches permissions at the underlying pages as needed. 122 The trade-off is increased memory use and degraded performance. */ 123 #ifndef SLJIT_WX_EXECUTABLE_ALLOCATOR 124 /* Disabled by default. */ 125 #define SLJIT_WX_EXECUTABLE_ALLOCATOR 0 126 #endif 127 128 #endif /* !SLJIT_EXECUTABLE_ALLOCATOR */ 129 130 /* Force cdecl calling convention even if a better calling 131 convention (e.g. fastcall) is supported by the C compiler. 132 If this option is disabled (this is the default), functions 133 called from JIT should be defined with SLJIT_FUNC attribute. 134 Standard C functions can still be called by using the 135 SLJIT_CALL_CDECL jump type. */ 136 #ifndef SLJIT_USE_CDECL_CALLING_CONVENTION 137 /* Disabled by default */ 138 #define SLJIT_USE_CDECL_CALLING_CONVENTION 0 139 #endif 140 141 /* Return with error when an invalid argument is passed. */ 142 #ifndef SLJIT_ARGUMENT_CHECKS 143 /* Disabled by default */ 144 #define SLJIT_ARGUMENT_CHECKS 0 145 #endif 146 147 /* Debug checks (assertions, etc.). */ 148 #ifndef SLJIT_DEBUG 149 /* Enabled by default */ 150 #define SLJIT_DEBUG 1 151 #endif 152 153 /* Verbose operations. */ 154 #ifndef SLJIT_VERBOSE 155 /* Enabled by default */ 156 #define SLJIT_VERBOSE 1 157 #endif 158 159 /* 160 SLJIT_IS_FPU_AVAILABLE 161 The availability of the FPU can be controlled by SLJIT_IS_FPU_AVAILABLE. 162 zero value - FPU is NOT present. 163 nonzero value - FPU is present. 164 */ 165 166 /* For further configurations, see the beginning of sljitConfigInternal.h */ 167 168 #ifdef __cplusplus 169 } /* extern "C" */ 170 #endif 171 172 #endif /* SLJIT_CONFIG_H_ */ 173
