42 lines
988 B
C
42 lines
988 B
C
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#pragma once
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct sym_entry {
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uint32_t hash;
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uint32_t address;
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};
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#ifdef __cplusplus
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}
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#include <array>
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#include <algorithm>
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#define API_METHOD(x, ret_type, args_type) \
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sym_entry { \
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.hash = elf_gnu_hash(#x), .address = (uint32_t)(static_cast<ret_type(*) args_type>(x)) \
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}
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#define API_VARIABLE(x, var_type) \
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sym_entry { \
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.hash = elf_gnu_hash(#x), .address = (uint32_t)(&(x)), \
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}
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constexpr bool operator<(const sym_entry& k1, const sym_entry& k2) {
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return k1.hash < k2.hash;
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}
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constexpr uint32_t elf_gnu_hash(const char* s) {
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uint32_t h = 0x1505;
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for(unsigned char c = *s; c != '\0'; c = *++s) {
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h = (h << 5) + h + c;
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}
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return h;
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}
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#endif
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