[PATCH v6 4/9] objtool: Handle unreachable entry of rodata

[Tiezhu Yang]

When compiling with Clang on LoongArch, there exists unreachable entry of
rodata which points to a position after the function return instruction,
this is generated by compiler to fill the non-existent switch case, just
skip the entry when parsing the relocation section of rodata.

Signed-off-by: Tiezhu Yang <yangtie...@loongson.cn>
---
 tools/objtool/check.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index cff7416b207e..654cffcf9512 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -1986,9 +1986,10 @@ static int add_jump_table(struct objtool_file *file, 
struct instruction *insn,
                if (!dest_insn)
                        break;
 
-               /* Make sure the destination is in the same function: */
-               if (!insn_func(dest_insn) || insn_func(dest_insn)->pfunc != 
pfunc)
-                       break;
+               if (!insn_func(dest_insn) || insn_func(dest_insn)->pfunc != 
pfunc) {
+                       prev_offset = reloc_offset(reloc);
+                       continue;
+               }
 
                alt = malloc(sizeof(*alt));
                if (!alt) {
-- 
2.42.0