From a7f290dad32ee34d931561b7943c858fe2aae503 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Fri, 11 Nov 2005 21:15:21 +1100 Subject: [PATCH] powerpc: Merge vdso's and add vdso support to 32 bits kernel This patch moves the vdso's to arch/powerpc, adds support for the 32 bits vdso to the 32 bits kernel, rename systemcfg (finally !), and adds some new (still untested) routines to both vdso's: clock_gettime() with support for CLOCK_REALTIME and CLOCK_MONOTONIC, clock_getres() (same clocks) and get_tbfreq() for glibc to retreive the timebase frequency. Tom,Steve: The implementation of get_tbfreq() I've done for 32 bits returns a long long (r3, r4) not a long. This is such that if we ever add support for >4Ghz timebases on ppc32, the userland interface won't have to change. I have tested gettimeofday() using some glibc patches in both ppc32 and ppc64 kernels using 32 bits userland (I haven't had a chance to test a 64 bits userland yet, but the implementation didn't change and was tested earlier). I haven't tested yet the new functions. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras --- include/asm-powerpc/elf.h | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) (limited to 'include/asm-powerpc/elf.h') diff --git a/include/asm-powerpc/elf.h b/include/asm-powerpc/elf.h index feac3458d71..3dcd65edf97 100644 --- a/include/asm-powerpc/elf.h +++ b/include/asm-powerpc/elf.h @@ -269,14 +269,12 @@ extern int dcache_bsize; extern int icache_bsize; extern int ucache_bsize; -#ifdef __powerpc64__ +/* vDSO has arch_setup_additional_pages */ +#define ARCH_HAS_SETUP_ADDITIONAL_PAGES struct linux_binprm; -#define ARCH_HAS_SETUP_ADDITIONAL_PAGES /* vDSO has arch_setup_additional_pages */ -extern int arch_setup_additional_pages(struct linux_binprm *bprm, int executable_stack); +extern int arch_setup_additional_pages(struct linux_binprm *bprm, + int executable_stack); #define VDSO_AUX_ENT(a,b) NEW_AUX_ENT(a,b); -#else -#define VDSO_AUX_ENT(a,b) -#endif /* __powerpc64__ */ /* * The requirements here are: -- cgit v1.2.3