[tip: timers/vdso] elf, uapi: Add definitions for VER_FLG_BASE and VER_FLG_WEAK

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

Commit-ID:     049d19bb3807e10902d41125c9d511025389718f
Gitweb:        https://git.kernel.org/tip/049d19bb3807e10902d41125c9d511025389718f
Author:        Thomas Weißschuh <thomas.weissschuh@xxxxxxxxxxxxx>
AuthorDate:    Wed, 26 Feb 2025 12:44:43 +01:00
Committer:     Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitterDate: Mon, 03 Mar 2025 20:00:11 +01:00

elf, uapi: Add definitions for VER_FLG_BASE and VER_FLG_WEAK

The definitions are used by tools/testing/selftests/vDSO/parse_vdso.c.

To be able to build the vDSO selftests without a libc dependency,
add the definitions to the kernels own UAPI headers.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@xxxxxxxxxxxxx>
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Reviewed-by: Kees Cook <kees@xxxxxxxxxx>
Reviewed-by: Vincenzo Frascino <vincenzo.frascino@xxxxxxx>
Acked-by: Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx>
Link: https://docs.oracle.com/cd/E19683-01/816-1386/chapter6-80869/index.html
Link: https://lore.kernel.org/all/20250226-parse_vdso-nolibc-v2-4-28e14e031ed8@xxxxxxxxxxxxx
---
 include/uapi/linux/elf.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/uapi/linux/elf.h b/include/uapi/linux/elf.h
index c5383cc..d040f12 100644
--- a/include/uapi/linux/elf.h
+++ b/include/uapi/linux/elf.h
@@ -136,6 +136,9 @@ typedef __s64	Elf64_Sxword;
 #define STT_COMMON  5
 #define STT_TLS     6
 
+#define VER_FLG_BASE 0x1
+#define VER_FLG_WEAK 0x2
+
 #define ELF_ST_BIND(x)		((x) >> 4)
 #define ELF_ST_TYPE(x)		((x) & 0xf)
 #define ELF32_ST_BIND(x)	ELF_ST_BIND(x)





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