[tip: timers/vdso] Revert "selftests: vDSO: parse_vdso: Use UAPI headers instead of libc headers"

["tip-bot2 for Thomas Weißschuh" <tip-bot2@linutronix.de>]

The following commit has been merged into the timers/vdso branch of tip:

Commit-ID:     8919083b6a0bb76d43e44da4ab0f08f52456434a
Gitweb:        https://git.kernel.org/tip/8919083b6a0bb76d43e44da4ab0f08f52456434a
Author:        Thomas Weißschuh <thomas.weissschuh@linutronix.de>
AuthorDate:    Fri, 27 Feb 2026 07:45:56 +01:00
Committer:     Thomas Gleixner <tglx@kernel.org>
CommitterDate: Wed, 11 Mar 2026 10:27:39 +01:00

Revert "selftests: vDSO: parse_vdso: Use UAPI headers instead of libc headers"

This reverts commit c9fbaa879508 ("selftests: vDSO: parse_vdso: Use UAPI
headers instead of libc headers")

The kernel headers were used to make parse_vdso.c compatible with
nolibc.  Unfortunately linux/elf.h is incompatible with glibc's
sys/auxv.h. When using glibc it is therefore not possible build
parse_vdso.c as part of the same compilation unit as its caller
as sys/auxv.h is needed for getauxval().

In the meantime nolibc gained its own elf.h, providing compatibility
with the documented libc interfaces.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/20260227-vdso-selftest-cleanups-v2-1-d84830fa8beb@linutronix.de
---
 tools/testing/selftests/vDSO/Makefile     | 2 --
 tools/testing/selftests/vDSO/parse_vdso.c | 3 +--
 2 files changed, 1 insertion(+), 4 deletions(-)

diff --git a/tools/testing/selftests/vDSO/Makefile b/tools/testing/selftests/vDSO/Makefile
index e361aca..2de5cef 100644
--- a/tools/testing/selftests/vDSO/Makefile
+++ b/tools/testing/selftests/vDSO/Makefile
@@ -19,8 +19,6 @@ endif
 
 include ../lib.mk
 
-CFLAGS += $(TOOLS_INCLUDES)
-
 CFLAGS_NOLIBC := -nostdlib -nostdinc -ffreestanding -fno-asynchronous-unwind-tables \
 		 -fno-stack-protector -include $(top_srcdir)/tools/include/nolibc/nolibc.h \
 		 -I$(top_srcdir)/tools/include/nolibc/ $(KHDR_INCLUDES)
diff --git a/tools/testing/selftests/vDSO/parse_vdso.c b/tools/testing/selftests/vDSO/parse_vdso.c
index 3ff00fb..c6ff441 100644
--- a/tools/testing/selftests/vDSO/parse_vdso.c
+++ b/tools/testing/selftests/vDSO/parse_vdso.c
@@ -19,8 +19,7 @@
 #include <stdint.h>
 #include <string.h>
 #include <limits.h>
-#include <linux/auxvec.h>
-#include <linux/elf.h>
+#include <elf.h>
 
 #include "parse_vdso.h"