musl/arch/i386/reloc.h
Rich Felker 32de61e81a fix some symbol resolution issues in dynamic linker
1. search was wrongly beginning with lib itself rather than dso head
2. inconsistent resolution of function pointers for functions in plt
2011-06-25 22:36:21 -04:00

30 lines
672 B
C

#include <string.h>
#include <elf.h>
#define ETC_LDSO_PATH "/etc/ld-musl-i386.path"
#define IS_COPY(x) ((x)==R_386_COPY)
#define IS_PLT(x) ((x)==R_386_JMP_SLOT)
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)
{
switch(type) {
case R_386_32:
*reloc_addr += sym_val;
break;
case R_386_PC32:
*reloc_addr += sym_val - (size_t)reloc_addr;
break;
case R_386_GLOB_DAT:
case R_386_JMP_SLOT:
*reloc_addr = sym_val;
break;
case R_386_RELATIVE:
*reloc_addr += (size_t)base_addr;
break;
case R_386_COPY:
memcpy(reloc_addr, (void *)sym_val, sym_size);
break;
}
}