On 21/06/24 16:26, Helge Deller wrote: > 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@xxxxxx> > > Changes in v2: > - add vsyscalls for 64-bit too > > 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 2024-06-21 19:19:02.132000000 +0000 > @@ -468,6 +468,18 @@ L(pre_end): ASM_LINE_SEP \ > #define CLOB_ARGS_1 CLOB_ARGS_2, "%r25" > #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__ */ Not sure why you have added the gettimeofday support, currently 32 bits it is already routed to to clock_gettime (which will use __vdso_clock_gettime64 anyway). For hppa to actually use, it would require to add a way to call it for !USE_IFUNC_GETTIMEOFDAY gettimeofday, which I am not it really be an improvement here.
