hppa/vdso: Add wrappers for vDSO functions

Message ID ZnMlRrsmHzrEkpYL@p100
State Superseded
Headers
Series hppa/vdso: Add wrappers for vDSO functions |

Checks

Context Check Description
redhat-pt-bot/TryBot-apply_patch success Patch applied to master at the time it was sent
redhat-pt-bot/TryBot-32bit success Build for i686
linaro-tcwg-bot/tcwg_glibc_build--master-arm success Build passed
linaro-tcwg-bot/tcwg_glibc_build--master-aarch64 success Build passed
linaro-tcwg-bot/tcwg_glibc_check--master-arm success Test passed
linaro-tcwg-bot/tcwg_glibc_check--master-aarch64 success Test passed

Commit Message

Helge Deller June 19, 2024, 6:36 p.m. UTC
  The upcoming parisc (hppa) Linux kernel v6.11 will include basic vDSO
support for gettimeofday(), clock_gettime() and clock_gettime64()
syscalls for 32-bit userspace.
The patch below adds the necessary glue code for glibc.

Signed-off-by: Helge Deller <deller@gmx.de>
  

Patch

diff -up ./sysdeps/unix/sysv/linux/hppa/sysdep.h.org ./sysdeps/unix/sysv/linux/hppa/sysdep.h
--- ./sysdeps/unix/sysv/linux/hppa/sysdep.h.org	2024-06-15 20:20:58.992000000 +0000
+++ ./sysdeps/unix/sysv/linux/hppa/sysdep.h	2024-06-19 18:26:08.324000000 +0000
@@ -468,6 +468,16 @@  L(pre_end):					ASM_LINE_SEP	\
 #define CLOB_ARGS_1 CLOB_ARGS_2, "%r25"
 #define CLOB_ARGS_0 CLOB_ARGS_1, "%r26"
 
+#ifndef __LP64__
+# define VDSO_NAME	"LINUX_6.11"
+# define VDSO_HASH	182951793
+
+/* List of system calls which are supported as vsyscalls.  */
+# define HAVE_CLOCK_GETTIME_VSYSCALL    "__vdso_clock_gettime"
+# define HAVE_CLOCK_GETTIME64_VSYSCALL  "__vdso_clock_gettime64"
+# define HAVE_GETTIMEOFDAY_VSYSCALL     "__vdso_gettimeofday"
+#endif /* __LP64__ */
+
 #endif	/* __ASSEMBLER__ */
 
 #endif /* _LINUX_HPPA_SYSDEP_H */