mirror of
https://github.com/openharmony/third_party_elfutils.git
synced 2026-07-01 06:41:51 -04:00
unknown
61 lines
1.5 KiB
C
61 lines
1.5 KiB
C
#undef ADD_ROUTINE_PREFIX
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#undef ADD_ROUTINE_SUFFIX
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#if ELF_WRLOCK_HELD
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#define CONCAT(x,y) x##y
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#define ADD_ROUTINE_PREFIX(y) CONCAT(__,y)
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#define ADD_ROUTINE_SUFFIX(x) x ## _wrlock
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#define INTERNAL internal_function
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#else
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#define ADD_ROUTINE_PREFIX(y) y
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#define ADD_ROUTINE_SUFFIX(x) x
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#define INTERNAL
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#endif
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ElfW2(LIBELFBITS,Chdr) *
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INTERNAL
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ADD_ROUTINE_PREFIX(elfw2(LIBELFBITS, ADD_ROUTINE_SUFFIX(getchdr))) (Elf_Scn *scn)
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{
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ElfW2(LIBELFBITS,Shdr) *shdr = ADD_ROUTINE_PREFIX(elfw2(LIBELFBITS, ADD_ROUTINE_SUFFIX(getshdr)))(scn);
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if (shdr == NULL)
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return NULL;
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/* Must have SHF_COMPRESSED flag set. Allocated or no bits sections
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can never be compressed. */
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if ((shdr->sh_flags & SHF_ALLOC) != 0)
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{
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__libelf_seterrno (ELF_E_INVALID_SECTION_FLAGS);
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return NULL;
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}
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if (shdr->sh_type == SHT_NULL
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|| shdr->sh_type == SHT_NOBITS)
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{
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__libelf_seterrno (ELF_E_INVALID_SECTION_TYPE);
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return NULL;
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}
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if ((shdr->sh_flags & SHF_COMPRESSED) == 0)
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{
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__libelf_seterrno (ELF_E_NOT_COMPRESSED);
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return NULL;
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}
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/* This makes sure the data is in the correct format, so we don't
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need to swap fields. */
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Elf_Data *d = ADD_ROUTINE_PREFIX(ADD_ROUTINE_SUFFIX(elf_getdata)) (scn, NULL);
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if (d == NULL)
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return NULL;
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if (d->d_size < sizeof (ElfW2(LIBELFBITS,Chdr)) || d->d_buf == NULL)
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{
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__libelf_seterrno (ELF_E_INVALID_DATA);
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return NULL;
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}
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return (ElfW2(LIBELFBITS,Chdr) *) d->d_buf;
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}
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#undef INTERNAL
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#undef ELF_WRLOCK_HELD |