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authorAdhemerval Zanella <adhemerval.zanella@linaro.com>2015-04-17 10:58:31 -0300
committerAdhemerval Zanella <adhemerval.zanella@linaro.org>2015-05-26 10:10:36 -0300
commitf534255e4d276ee7b20b45637d16a00b122e5df3 (patch)
treeabbedc3d05bdfb526d0171fccd87fb84ecb1acd9 /sysdeps/unix/sysv/linux/powerpc/libc-vdso.h
parent829a679fac1fe173e81cb2c08204d2da86cf3f3a (diff)
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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/powerpc/libc-vdso.h')
-rw-r--r--sysdeps/unix/sysv/linux/powerpc/libc-vdso.h24
1 files changed, 11 insertions, 13 deletions
diff --git a/sysdeps/unix/sysv/linux/powerpc/libc-vdso.h b/sysdeps/unix/sysv/linux/powerpc/libc-vdso.h
index 63a7a9bf52..5868d248eb 100644
--- a/sysdeps/unix/sysv/linux/powerpc/libc-vdso.h
+++ b/sysdeps/unix/sysv/linux/powerpc/libc-vdso.h
@@ -22,23 +22,21 @@
 
 #ifdef SHARED
 
-extern void *__vdso_gettimeofday attribute_hidden;
+#include <sysdep-vdso.h>
 
-extern void *__vdso_clock_gettime;
-
-extern void *__vdso_clock_getres;
-
-extern void *__vdso_get_tbfreq;
-
-extern void *__vdso_getcpu;
-
-extern void *__vdso_time;
+extern int (*VDSO_SYMBOL(gettimeofday)) (struct timeval *, void *)
+  attribute_hidden;
+extern int (*VDSO_SYMBOL(clock_gettime)) (clockid_t, struct timespec *);
+extern int (*VDSO_SYMBOL(clock_getres)) (clockid_t, struct timespec *);
+extern unsigned long long (*VDSO_SYMBOL(get_tbfreq)) (void);
+extern int (*VDSO_SYMBOL(getcpu)) (unsigned *, unsigned *);
+extern time_t (*VDSO_SYMBOL(time)) (time_t *);
 
 #if defined(__PPC64__) || defined(__powerpc64__)
-extern void *__vdso_sigtramp_rt64;
+extern void *VDSO_SYMBOL(sigtramp_rt64);
 #else
-extern void *__vdso_sigtramp32;
-extern void *__vdso_sigtramp_rt32;
+extern void *VDSO_SYMBOL(sigtramp32);
+extern void *VDSO_SYMBOL(sigtramp_rt32);
 #endif
 
 #if (defined(__PPC64__) || defined(__powerpc64__)) && _CALL_ELF != 2