mirror of git://git.musl-libc.org/musl
57 lines
1.1 KiB
C
57 lines
1.1 KiB
C
#include <string.h>
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#include <elf.h>
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#include <endian.h>
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#if __BYTE_ORDER == __BIG_ENDIAN
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#define ENDIAN_SUFFIX "eb"
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#else
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#define ENDIAN_SUFFIX ""
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#endif
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#if __SOFTFP__
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#define FP_SUFFIX ""
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#else
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#define FP_SUFFIX "hf"
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#endif
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#define LDSO_ARCH "arm" ENDIAN_SUFFIX FP_SUFFIX
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#define IS_COPY(x) ((x)==R_ARM_COPY)
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#define IS_PLT(x) ((x)==R_ARM_JUMP_SLOT)
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static inline void do_single_reloc(
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struct dso *self, unsigned char *base_addr,
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size_t *reloc_addr, int type, size_t addend,
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Sym *sym, size_t sym_size,
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struct symdef def, size_t sym_val)
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{
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switch(type) {
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case R_ARM_ABS32:
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*reloc_addr += sym_val;
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break;
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case R_ARM_GLOB_DAT:
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case R_ARM_JUMP_SLOT:
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*reloc_addr = sym_val;
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break;
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case R_ARM_RELATIVE:
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*reloc_addr += (size_t)base_addr;
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break;
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case R_ARM_COPY:
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memcpy(reloc_addr, (void *)sym_val, sym_size);
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break;
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case R_ARM_TLS_DTPMOD32:
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*reloc_addr = def.dso ? def.dso->tls_id : self->tls_id;
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break;
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case R_ARM_TLS_DTPOFF32:
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*reloc_addr += def.sym->st_value;
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break;
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case R_ARM_TLS_TPOFF32:
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*reloc_addr += def.sym
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? def.sym->st_value + def.dso->tls_offset + 8
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: self->tls_offset + 8;
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break;
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}
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}
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#define NO_LEGACY_INITFINI
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