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Commit 56a974fa authored by Sam Ravnborg's avatar Sam Ravnborg
Browse files

kbuild: make better section mismatch reports on arm 



With this change we can find more symbols hereby improving
the readability of the warnings.

Signed-off-by: default avatarSam Ravnborg <sam@ravnborg.org>
parent ae4ac123

scripts/mod/modpost.c

+24 −0
Original line number Diff line number Diff line
@@ -929,6 +929,26 @@ static int addend_386_rel(struct elf_info *elf, int rsection, Elf_Rela *r) 
	return 0;

}



static int addend_arm_rel(struct elf_info *elf, int rsection, Elf_Rela *r)

{

	unsigned int r_typ = ELF_R_TYPE(r->r_info);



	switch (r_typ) {

	case R_ARM_ABS32:

		/* From ARM ABI: (S + A) | T */

		r->r_addend = (int)(long)(elf->symtab_start + ELF_R_SYM(r->r_info));

		break;

	case R_ARM_PC24:

		/* From ARM ABI: ((S + A) | T) - P */

		r->r_addend = (int)(long)(elf->hdr + elf->sechdrs[rsection].sh_offset +

		                          (r->r_offset - elf->sechdrs[rsection].sh_addr));

		break;

	default:

		return 1;

	}

	return 0;

}



static int addend_mips_rel(struct elf_info *elf, int rsection, Elf_Rela *r)

{

	unsigned int r_typ = ELF_R_TYPE(r->r_info);
@@ -1051,6 +1071,10 @@ static void check_sec_ref(struct module *mod, const char *modname, 
					if (addend_386_rel(elf, i, &r))

						continue;

					break;

				case EM_ARM:

					if(addend_arm_rel(elf, i, &r))

						continue;

					break;

				case EM_MIPS:

					if (addend_mips_rel(elf, i, &r))

						continue;