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Diffstat (limited to 'ext/opcache/jit/zend_elf.h')
| -rw-r--r-- | ext/opcache/jit/zend_elf.h | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/ext/opcache/jit/zend_elf.h b/ext/opcache/jit/zend_elf.h new file mode 100644 index 0000000000..305e08708d --- /dev/null +++ b/ext/opcache/jit/zend_elf.h @@ -0,0 +1,115 @@ +/* + +----------------------------------------------------------------------+ + | Zend JIT | + +----------------------------------------------------------------------+ + | Copyright (c) The PHP Group | + +----------------------------------------------------------------------+ + | This source file is subject to version 3.01 of the PHP license, | + | that is bundled with this package in the file LICENSE, and is | + | available through the world-wide-web at the following url: | + | http://www.php.net/license/3_01.txt | + | If you did not receive a copy of the PHP license and are unable to | + | obtain it through the world-wide-web, please send a note to | + | license@php.net so we can mail you a copy immediately. | + +----------------------------------------------------------------------+ + | Authors: Dmitry Stogov <dmitry@php.net> | + | Xinchen Hui <laruence@php.net> | + +----------------------------------------------------------------------+ +*/ + +#ifndef ZEND_ELF +#define ZEND_ELF + +#if SIZEOF_SIZE_T == 8 +# define ELF64 +#else +# undef ELF64 +#endif + +typedef struct _zend_elf_header { + uint8_t emagic[4]; + uint8_t eclass; + uint8_t eendian; + uint8_t eversion; + uint8_t eosabi; + uint8_t eabiversion; + uint8_t epad[7]; + uint16_t type; + uint16_t machine; + uint32_t version; + uintptr_t entry; + uintptr_t phofs; + uintptr_t shofs; + uint32_t flags; + uint16_t ehsize; + uint16_t phentsize; + uint16_t phnum; + uint16_t shentsize; + uint16_t shnum; + uint16_t shstridx; +} zend_elf_header; + +typedef struct zend_elf_sectheader { + uint32_t name; + uint32_t type; + uintptr_t flags; + uintptr_t addr; + uintptr_t ofs; + uintptr_t size; + uint32_t link; + uint32_t info; + uintptr_t align; + uintptr_t entsize; +} zend_elf_sectheader; + +#define ELFSECT_IDX_ABS 0xfff1 + +enum { + ELFSECT_TYPE_PROGBITS = 1, + ELFSECT_TYPE_SYMTAB = 2, + ELFSECT_TYPE_STRTAB = 3, + ELFSECT_TYPE_NOBITS = 8, + ELFSECT_TYPE_DYNSYM = 11, +}; + +#define ELFSECT_FLAGS_WRITE (1 << 0) +#define ELFSECT_FLAGS_ALLOC (1 << 1) +#define ELFSECT_FLAGS_EXEC (1 << 2) +#define ELFSECT_FLAGS_TLS (1 << 10) + +typedef struct zend_elf_symbol { +#ifdef ELF64 + uint32_t name; + uint8_t info; + uint8_t other; + uint16_t sectidx; + uintptr_t value; + uint64_t size; +#else + uint32_t name; + uintptr_t value; + uint32_t size; + uint8_t info; + uint8_t other; + uint16_t sectidx; +#endif +} zend_elf_symbol; + +#define ELFSYM_BIND(info) ((info) >> 4) +#define ELFSYM_TYPE(info) ((info) & 0xf) +#define ELFSYM_INFO(bind, type) (((bind) << 4) | (type)) + +enum { + ELFSYM_TYPE_DATA = 2, + ELFSYM_TYPE_FUNC = 2, + ELFSYM_TYPE_FILE = 4, +}; + +enum { + ELFSYM_BIND_LOCAL = 0, + ELFSYM_BIND_GLOBAL = 1, +}; + +void zend_elf_load_symbols(void); + +#endif |