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| author | Adhemerval Zanella <adhemerval.zanella@linaro.com> | 2015-04-17 10:58:31 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2015-05-26 10:10:36 -0300 |
| commit | f534255e4d276ee7b20b45637d16a00b122e5df3 (patch) | |
| tree | abbedc3d05bdfb526d0171fccd87fb84ecb1acd9 /sysdeps/unix/sysv/linux/aarch64/init-first.c | |
| parent | 829a679fac1fe173e81cb2c08204d2da86cf3f3a (diff) | |
| download | glibc-f534255e4d276ee7b20b45637d16a00b122e5df3.tar.gz glibc-f534255e4d276ee7b20b45637d16a00b122e5df3.tar.xz glibc-f534255e4d276ee7b20b45637d16a00b122e5df3.zip | |
Consolidate vDSO macros and usage
This patch consolidate the Linux vDSO define and usage across all ports
that uses it. The common vDSO definitions and calling through
{INLINE/INTERNAL}_VSYSCALL macros are moved to a common header
sysdep-vdso.h and vDSO name declaration and prototype is defined
using a common macro.
Also PTR_{MANGLE,DEMANGLE} is added to ports that does not use them
for vDSO calls (aarch64, powerpc, s390, and tile) and thus it will
reflect in code changes. For ports that already implement pointer
mangling/demangling in vDSO system (i386, x32, x86_64) this patch
is mainly a code refactor.
Checked on x32, x86_64, x32, ppc64le, and aarch64.
Diffstat (limited to 'sysdeps/unix/sysv/linux/aarch64/init-first.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/aarch64/init-first.c | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/sysdeps/unix/sysv/linux/aarch64/init-first.c b/sysdeps/unix/sysv/linux/aarch64/init-first.c index d99c821f6d..854189a793 100644 --- a/sysdeps/unix/sysv/linux/aarch64/init-first.c +++ b/sysdeps/unix/sysv/linux/aarch64/init-first.c @@ -23,18 +23,26 @@ # undef __clock_getres # include <libc-vdso.h> -void (*__vdso_gettimeofday) (struct timeval *, void *) attribute_hidden; -void (*__vdso_clock_gettime) (clockid_t, struct timespec *); -void (*__vdso_clock_getres) (clockid_t, struct timespec *); +int (*VDSO_SYMBOL(gettimeofday)) (struct timeval *, void *) attribute_hidden; +int (*VDSO_SYMBOL(clock_gettime)) (clockid_t, struct timespec *); +int (*VDSO_SYMBOL(clock_getres)) (clockid_t, struct timespec *); static inline void _libc_vdso_platform_setup (void) { PREPARE_VERSION (linux2639, "LINUX_2.6.39", 123718537); - __vdso_gettimeofday = _dl_vdso_vsym ("__kernel_gettimeofday", &linux2639); - __vdso_clock_gettime = _dl_vdso_vsym ("__kernel_clock_gettime", &linux2639); - __vdso_clock_getres = _dl_vdso_vsym ("__kernel_clock_getres", &linux2639); + void *p = _dl_vdso_vsym ("__kernel_gettimeofday", &linux2639); + PTR_MANGLE (p); + VDSO_SYMBOL(gettimeofday) = p; + + p = _dl_vdso_vsym ("__kernel_clock_gettime", &linux2639); + PTR_MANGLE (p); + VDSO_SYMBOL(clock_gettime) = p; + + p = _dl_vdso_vsym ("__kernel_clock_getres", &linux2639); + PTR_MANGLE (p); + VDSO_SYMBOL(clock_getres) = p; } # define VDSO_SETUP _libc_vdso_platform_setup |