81 lines
2.1 KiB
C
81 lines
2.1 KiB
C
#pragma once
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#define _XOPEN_SOURCE 500
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#define _BSD_SOURCE
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#define _DARWIN_C_SOURCE
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//#define PROFILING
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <sys/mman.h>
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#include <unistd.h>
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#include <sys/cdefs.h>
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#ifdef PROFILING
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#include <time.h>
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#endif
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#define swap32 __builtin_bswap32
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#define SWAP32(x) ((typeof(x)) swap32((uint32_t) (x)))
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// this function gets rid of compiler warnings about "comparison always true" - if that is true (because size_t is 64-bit on this architecture), great, don't bother me about it
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__attribute__((always_inline)) static inline size_t _id(size_t x) { return x; }
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#define MAX_ARRAY(typ) _id(~(size_t)0 / sizeof(typ))
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static inline void _free_cleanup(void *pp) {
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void *p = *((void **) pp);
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if(p) free(p);
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}
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#define autofree __attribute__((cleanup(_free_cleanup)))
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__unused static const char *const _arg = (char *) MAP_FAILED;
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#define die(fmt, args...) ((_arg == MAP_FAILED) ? \
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_die("%s: " fmt "\n", __func__, ##args) : \
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_die("%s: %s: " fmt "\n", __func__, _arg, ##args))
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#define edie(fmt, args...) die(fmt ": %s", ##args, strerror(errno))
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struct binary;
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#define ADDR64 1
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#if ADDR64
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typedef uint64_t addr_t;
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#else
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typedef uint32_t addr_t;
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#endif
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typedef struct { const struct binary *binary; addr_t start; size_t size; } range_t;
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typedef struct { addr_t start; size_t size; } arange_t;
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typedef struct { void *start; size_t size; } prange_t;
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__BEGIN_DECLS
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prange_t pdup(prange_t range, size_t newsize, size_t offset);
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bool is_valid_range(prange_t range);
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prange_t parse_hex_string(const char *string);
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prange_t load_file(const char *filename, bool rw, mode_t *mode);
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prange_t load_fd(int fd, bool rw);
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void store_file(prange_t range, const char *filename, mode_t mode);
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addr_t parse_hex_addr(const char *string);
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__attribute__((noreturn, format(printf, 1, 2)))
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void _die(const char *fmt, ...);
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#if defined(__APPLE__) && __DARWIN_C_LEVEL < 200809L
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static inline size_t strnlen(const char *s, size_t n) {
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const char *p = (const char *) memchr(s, 0, n);
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return p ? (size_t) (p-s) : n;
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}
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#endif
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__END_DECLS
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