objtool: Add missing endian conversion to read_annotate()

JIRA: https://issues.redhat.com/browse/RHEL-114921

commit ccdd09e
Author: Heiko Carstens <hca@linux.ibm.com>
Date:   Mon Jun 30 15:12:30 2025 +0200

    objtool: Add missing endian conversion to read_annotate()

    Trying to compile an x86 kernel on big endian results in this error:

    net/ipv4/netfilter/iptable_nat.o: warning: objtool: iptable_nat_table_init+0x150: Unknown annotation type: 50331648
    make[5]: *** [scripts/Makefile.build:287: net/ipv4/netfilter/iptable_nat.o] Error 255

    Reason is a missing endian conversion in read_annotate().
    Add the missing conversion to fix this.

    Fixes: 2116b34 ("objtool: Generic annotation infrastructure")
    Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
    Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
    Link: https://lkml.kernel.org/r/20250630131230.4130185-1-hca@linux.ibm.com

Signed-off-by: Joe Lawrence <joe.lawrence@redhat.com>

Author: joe-lawrence

tools/objtool/check.c

@@ -2325,6 +2325,7 @@ static int read_annotate(struct objtool_file *file,
 
 	for_each_reloc(sec->rsec, reloc) {
 		type = *(u32 *)(sec->data->d_buf + (reloc_idx(reloc) * sec->sh.sh_entsize) + 4);
+		type = bswap_if_needed(file->elf, type);
 
 		offset = reloc->sym->offset + reloc_addend(reloc);
 		insn = find_insn(file, reloc->sym->sec, offset);