[tip: timers/vdso] elf, uapi: Add type ElfXX_Versym

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

Commit-ID:     2c86f604f85def1be0b7889c18e055ed63591018
Gitweb:        https://git.kernel.org/tip/2c86f604f85def1be0b7889c18e055ed63591018
Author:        Thomas Weißschuh <thomas.weissschuh@xxxxxxxxxxxxx>
AuthorDate:    Wed, 26 Feb 2025 12:44:44 +01:00
Committer:     Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitterDate: Mon, 03 Mar 2025 20:00:11 +01:00

elf, uapi: Add type ElfXX_Versym

The type is used by tools/testing/selftests/vDSO/parse_vdso.c.

To be able to build the vDSO selftests without a libc dependency,
add the type to the kernels own UAPI headers. As documented by elf(5).

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://lore.kernel.org/all/20250226-parse_vdso-nolibc-v2-5-28e14e031ed8@xxxxxxxxxxxxx
---
 include/uapi/linux/elf.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/uapi/linux/elf.h b/include/uapi/linux/elf.h
index d040f12..8846fe0 100644
--- a/include/uapi/linux/elf.h
+++ b/include/uapi/linux/elf.h
@@ -11,6 +11,7 @@ typedef __u16	Elf32_Half;
 typedef __u32	Elf32_Off;
 typedef __s32	Elf32_Sword;
 typedef __u32	Elf32_Word;
+typedef __u16	Elf32_Versym;
 
 /* 64-bit ELF base types. */
 typedef __u64	Elf64_Addr;
@@ -21,6 +22,7 @@ typedef __s32	Elf64_Sword;
 typedef __u32	Elf64_Word;
 typedef __u64	Elf64_Xword;
 typedef __s64	Elf64_Sxword;
+typedef __u16	Elf64_Versym;
 
 /* These constants are for the segment types stored in the image headers */
 #define PT_NULL    0





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