[PATCH] modpost: define more R_ARM_* for old distributions

From: Masahiro Yamada
Date: Tue Jun 27 2023 - 12:32:55 EST


On CentOS 7, the following build error occurs.

scripts/mod/modpost.c: In function 'addend_arm_rel':
scripts/mod/modpost.c:1312:7: error: 'R_ARM_MOVW_ABS_NC' undeclared (first use in this function); did you mean 'R_ARM_THM_ABS5'?
case R_ARM_MOVW_ABS_NC:
^~~~~~~~~~~~~~~~~
R_ARM_THM_ABS5
scripts/mod/modpost.c:1312:7: note: each undeclared identifier is reported only once for each function it appears in
scripts/mod/modpost.c:1313:7: error: 'R_ARM_MOVT_ABS' undeclared (first use in this function); did you mean 'R_ARM_THM_ABS5'?
case R_ARM_MOVT_ABS:
^~~~~~~~~~~~~~
R_ARM_THM_ABS5
scripts/mod/modpost.c:1326:7: error: 'R_ARM_THM_MOVW_ABS_NC' undeclared (first use in this function); did you mean 'R_ARM_THM_ABS5'?
case R_ARM_THM_MOVW_ABS_NC:
^~~~~~~~~~~~~~~~~~~~~
R_ARM_THM_ABS5
scripts/mod/modpost.c:1327:7: error: 'R_ARM_THM_MOVT_ABS' undeclared (first use in this function); did you mean 'R_ARM_THM_ABS5'?
case R_ARM_THM_MOVT_ABS:
^~~~~~~~~~~~~~~~~~
R_ARM_THM_ABS5

Fixes: 12ca2c67d742 ("modpost: detect section mismatch for R_ARM_{MOVW_ABS_NC,MOVT_ABS}")
Fixes: cd1824fb7a37 ("modpost: detect section mismatch for R_ARM_THM_{MOVW_ABS_NC,MOVT_ABS}")
Reported-by: Tetsuo Handa <penguin-kernel@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Masahiro Yamada <masahiroy@xxxxxxxxxx>
---

scripts/mod/modpost.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)

diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 73f4f5588b67..603a4f9587a4 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -1286,6 +1286,23 @@ static int addend_386_rel(uint32_t *location, Elf_Rela *r)
#ifndef R_ARM_THM_JUMP24
#define R_ARM_THM_JUMP24 30
#endif
+
+#ifndef R_ARM_MOVW_ABS_NC
+#define R_ARM_MOVW_ABS_NC 43
+#endif
+
+#ifndef R_ARM_MOVT_ABS
+#define R_ARM_MOVT_ABS 44
+#endif
+
+#ifndef R_ARM_THM_MOVW_ABS_NC
+#define R_ARM_THM_MOVW_ABS_NC 47
+#endif
+
+#ifndef R_ARM_THM_MOVT_ABS
+#define R_ARM_THM_MOVT_ABS 48
+#endif
+
#ifndef R_ARM_THM_JUMP19
#define R_ARM_THM_JUMP19 51
#endif
--
2.39.2