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hppa/vdso: Add wrappers for vDSO functions

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The upcoming parisc (hppa) v6.11 Linux kernel will include vDSO
support for gettimeofday(), clock_gettime() and clock_gettime64()
syscalls for 32- and 64-bit userspace.
The patch below adds the necessary glue code for glibc.

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

Changes in v2:
- add vsyscalls for 64-bit too
This commit is contained in:
John David Anglin 2024-06-23 19:39:28 -04:00
parent 9dddb26954
commit aecde502e9
1 changed files with 12 additions and 0 deletions
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12
sysdeps/unix/sysv/linux/hppa/sysdep.h
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@ -468,6 +468,18 @@ L(pre_end): ASM_LINE_SEP \
#define CLOB_ARGS_1 CLOB_ARGS_2, "%r25" #define CLOB_ARGS_1 CLOB_ARGS_2, "%r25"
#define CLOB_ARGS_0 CLOB_ARGS_1, "%r26" #define CLOB_ARGS_0 CLOB_ARGS_1, "%r26"
#define VDSO_NAME "LINUX_6.11"
#define VDSO_HASH 182951793
#ifdef __LP64__
# define HAVE_CLOCK_GETTIME_VSYSCALL "__vdso_clock_gettime"
# define HAVE_GETTIMEOFDAY_VSYSCALL "__vdso_gettimeofday"
#else
# 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 /* __ASSEMBLER__ */
#endif /* _LINUX_HPPA_SYSDEP_H */ #endif /* _LINUX_HPPA_SYSDEP_H */