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32de61e81a
1. search was wrongly beginning with lib itself rather than dso head 2. inconsistent resolution of function pointers for functions in plt
32 lines
804 B
C
32 lines
804 B
C
#include <stdint.h>
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#include <string.h>
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#include <elf.h>
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#define ETC_LDSO_PATH "/etc/ld-musl-x86_64.path"
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#define IS_COPY(x) ((x)==R_X86_64_COPY)
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#define IS_PLT(x) ((x)==R_X86_64_JUMP_SLOT)
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static inline void do_single_reloc(size_t *reloc_addr, int type, size_t sym_val, size_t sym_size, unsigned char *base_addr, size_t addend)
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{
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switch(type) {
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case R_X86_64_GLOB_DAT:
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case R_X86_64_JUMP_SLOT:
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case R_X86_64_64:
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*reloc_addr = sym_val + addend;
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break;
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case R_X86_64_32:
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*(uint32_t *)reloc_addr = sym_val + addend;
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break;
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case R_X86_64_PC32:
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*reloc_addr = sym_val + addend - (size_t)reloc_addr + (size_t)base_addr;
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break;
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case R_X86_64_RELATIVE:
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*reloc_addr = (size_t)base_addr + addend;
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break;
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case R_X86_64_COPY:
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memcpy(reloc_addr, (void *)sym_val, sym_size);
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break;
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}
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}
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