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https://github.com/frida/tinycc
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When creating a staticaly linked ELF program should not include
any dyn symbols. The if( !s1->static_link ) prevents tcc from crashing when buiding a program linked to dietlibc. The section header should not contain the number of local symbols when the sh_size is null. This makes the header compliant and IDA will not issue any warnings when an executable is disassembled.
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parent
3e4b7693bf
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12
tccelf.c
12
tccelf.c
@ -679,7 +679,8 @@ static void sort_syms(TCCState *s1, Section *s)
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p++;
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}
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/* save the number of local symbols in section header */
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s->sh_info = q - new_syms;
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if( s->sh_size ) /* this 'if' makes IDA happy */
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s->sh_info = q - new_syms;
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/* then second pass for non local symbols */
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p = (ElfW(Sym) *)s->data;
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@ -1985,10 +1986,11 @@ static void tidy_section_headers(TCCState *s1, int *sec_order)
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for_each_elem(symtab_section, 1, sym, ElfW(Sym))
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if (sym->st_shndx != SHN_UNDEF && sym->st_shndx < SHN_LORESERVE)
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sym->st_shndx = backmap[sym->st_shndx];
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for_each_elem(s1->dynsym, 1, sym, ElfW(Sym))
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if (sym->st_shndx != SHN_UNDEF && sym->st_shndx < SHN_LORESERVE)
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sym->st_shndx = backmap[sym->st_shndx];
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if( !s1->static_link ) {
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for_each_elem(s1->dynsym, 1, sym, ElfW(Sym))
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if (sym->st_shndx != SHN_UNDEF && sym->st_shndx < SHN_LORESERVE)
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sym->st_shndx = backmap[sym->st_shndx];
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}
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for (i = 0; i < s1->nb_sections; i++)
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sec_order[i] = i;
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tcc_free(s1->sections);
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