disable kernel build waring

hc

2024-05-10 093a6c67005148ae32a5c9e4553491b9f5c2457b

 kernel/scripts/mod/modpost.c
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@@ -1309,6 +1309,10 @@
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 	if (relsym->st_name != 0)
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 		return relsym;
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+	/*
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+	 * Strive to find a better symbol name, but the resulting name may not
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+	 * match the symbol referenced in the original code.
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+	 */
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 	relsym_secindex = get_secindex(elf, relsym);
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 	for (sym = elf->symtab_start; sym < elf->symtab_stop; sym++) {
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 		if (get_secindex(elf, sym) != relsym_secindex)
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@@ -1613,7 +1617,7 @@
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 static int is_executable_section(struct elf_info* elf, unsigned int section_index)
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 {
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-	if (section_index > elf->num_sections)
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+	if (section_index >= elf->num_sections)
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 		fatal("section_index is outside elf->num_sections!\n");
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 	return ((elf->sechdrs[section_index].sh_flags & SHF_EXECINSTR) == SHF_EXECINSTR);
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@@ -1788,19 +1792,33 @@
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 #define	R_ARM_THM_JUMP19	51
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 #endif
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+static int32_t sign_extend32(int32_t value, int index)
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+{
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+	uint8_t shift = 31 - index;
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+
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+	return (int32_t)(value << shift) >> shift;
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+}
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+
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 static int addend_arm_rel(struct elf_info *elf, Elf_Shdr *sechdr, Elf_Rela *r)
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 {
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 	unsigned int r_typ = ELF_R_TYPE(r->r_info);
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+	Elf_Sym *sym = elf->symtab_start + ELF_R_SYM(r->r_info);
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+	void *loc = reloc_location(elf, sechdr, r);
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+	uint32_t inst;
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+	int32_t offset;
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1809
 
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 	switch (r_typ) {
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 	case R_ARM_ABS32:
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-		/* From ARM ABI: (S + A) | T */
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-		r->r_addend = (int)(long)
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-			      (elf->symtab_start + ELF_R_SYM(r->r_info));
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+		inst = TO_NATIVE(*(uint32_t *)loc);
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+		r->r_addend = inst + sym->st_value;
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 		break;
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 	case R_ARM_PC24:
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 	case R_ARM_CALL:
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 	case R_ARM_JUMP24:
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+		inst = TO_NATIVE(*(uint32_t *)loc);
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+		offset = sign_extend32((inst & 0x00ffffff) << 2, 25);
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+		r->r_addend = offset + sym->st_value + 8;
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+		break;
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 	case R_ARM_THM_CALL:
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 	case R_ARM_THM_JUMP24:
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 	case R_ARM_THM_JUMP19: