diff options
| author | Thomas Weißschuh <thomas.weissschuh@linutronix.de> | 2024-10-11 11:18:26 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2024-10-23 09:52:49 +0200 |
| commit | 90daca7c8f6f33e9482591446d2e76b18a21be49 (patch) | |
| tree | 64cc5e96bb204d7ad86879f2ba9a529d35f93a3b | |
| parent | b9ee5fc8f4aa8c6547f9853e0480949c155163cb (diff) | |
um: vdso: Always reject undefined references in during linking
Instead of using a custom script to detect and fail on undefined
references, use --no-undefined for all VDSO linker invocations.
Drop the now unused checkundef.sh script.
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Link: https://patch.msgid.link/20241011-vdso-checkundef-v1-2-1a46e0352d20@linutronix.de
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| -rw-r--r-- | arch/x86/um/vdso/Makefile | 5 | ||||
| -rw-r--r-- | arch/x86/um/vdso/checkundef.sh | 11 |
2 files changed, 2 insertions, 14 deletions
diff --git a/arch/x86/um/vdso/Makefile b/arch/x86/um/vdso/Makefile index 6a77ea6434ff..7478d11dacb7 100644 --- a/arch/x86/um/vdso/Makefile +++ b/arch/x86/um/vdso/Makefile @@ -56,7 +56,6 @@ CFLAGS_REMOVE_um_vdso.o = -pg -fprofile-arcs -ftest-coverage quiet_cmd_vdso = VDSO $@ cmd_vdso = $(CC) -nostdlib -o $@ \ $(CC_FLAGS_LTO) $(VDSO_LDFLAGS) $(VDSO_LDFLAGS_$(filter %.lds,$(^F))) \ - -Wl,-T,$(filter %.lds,$^) $(filter %.o,$^) && \ - sh $(src)/checkundef.sh '$(NM)' '$@' + -Wl,-T,$(filter %.lds,$^) $(filter %.o,$^) -VDSO_LDFLAGS = -fPIC -shared -Wl,--hash-style=sysv -z noexecstack +VDSO_LDFLAGS = -fPIC -shared -Wl,--hash-style=sysv -z noexecstack -Wl,--no-undefined diff --git a/arch/x86/um/vdso/checkundef.sh b/arch/x86/um/vdso/checkundef.sh deleted file mode 100644 index 8e3ea6bb956f..000000000000 --- a/arch/x86/um/vdso/checkundef.sh +++ /dev/null @@ -1,11 +0,0 @@ -#!/bin/sh -# SPDX-License-Identifier: GPL-2.0 -nm="$1" -file="$2" -$nm "$file" | grep '^ *U' > /dev/null 2>&1 -if [ $? -eq 1 ]; then - exit 0 -else - echo "$file: undefined symbols found" >&2 - exit 1 -fi |