From: Tony Ambardar <tony.ambar...@gmail.com>
Linking uprobe_multi.c on mips64el fails due to relocation overflows, when
the GOT entries required exceeds the default maximum. Add a specific CFLAGS
(-mxgot) for uprobe_multi.c on MIPS that allows using a larger GOT and
avoids errors such as:
/tmp/ccBTNQzv.o: in function `bench':
uprobe_multi.c:49:(.text+0x1d7720): relocation truncated to fit:
R_MIPS_GOT_DISP against `uprobe_multi_func_08188'
uprobe_multi.c:49:(.text+0x1d7730): relocation truncated to fit:
R_MIPS_GOT_DISP against `uprobe_multi_func_08189'
...
collect2: error: ld returned 1 exit status
Fixes: 519dfeaf5119 ("selftests/bpf: Add uprobe_multi test program")
Signed-off-by: Tony Ambardar <tony.ambar...@gmail.com>
---
tools/testing/selftests/bpf/Makefile | 2 ++
1 file changed, 2 insertions(+)
diff --git a/tools/testing/selftests/bpf/Makefile
b/tools/testing/selftests/bpf/Makefile
index 11fdf126cb7c..60a07605a162 100644
--- a/tools/testing/selftests/bpf/Makefile
+++ b/tools/testing/selftests/bpf/Makefile
@@ -785,6 +785,8 @@ $(OUTPUT)/veristat: $(OUTPUT)/veristat.o
$(call msg,BINARY,,$@)
$(Q)$(CC) $(CFLAGS) $(LDFLAGS) $(filter %.a %.o,$^) $(LDLIBS) -o $@
+# Linking uprobe_multi can fail due to relocation overflows on mips.
+$(OUTPUT)/uprobe_multi: CFLAGS += $(if $(filter mips, $(ARCH)),-mxgot)
$(OUTPUT)/uprobe_multi: uprobe_multi.c
$(call msg,BINARY,,$@)
$(Q)$(CC) $(CFLAGS) -O0 $(LDFLAGS) $^ $(LDLIBS) -o $@
--
2.34.1
