[PATCH 8/8] riscv: Use latest system call ABI

From: Arnd Bergmann
Date: Mon Feb 18 2019 - 16:08:59 EST


We don't yet have an upstream glibc port for riscv, so there is no user
space for the existing ABI, and we can remove the definitions for 32-bit
time_t, off_t and struct resource and system calls based on them,
including the vdso.

Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
arch/riscv/Kconfig | 1 -
arch/riscv/include/uapi/asm/unistd.h | 5 +----
arch/riscv/kernel/vdso/Makefile | 2 ++
3 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index 09fa3a87bf30..feeeaa60697c 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -11,7 +11,6 @@ config 32BIT

config RISCV
def_bool y
- select ARCH_32BIT_OFF_T if !64BIT
# even on 32-bit, physical (and DMA) addresses are > 32-bits
select PHYS_ADDR_T_64BIT
select OF
diff --git a/arch/riscv/include/uapi/asm/unistd.h b/arch/riscv/include/uapi/asm/unistd.h
index 486a288b454c..0e2eeeb1fd27 100644
--- a/arch/riscv/include/uapi/asm/unistd.h
+++ b/arch/riscv/include/uapi/asm/unistd.h
@@ -17,11 +17,8 @@

#ifdef __LP64__
#define __ARCH_WANT_NEW_STAT
-#endif /* __LP64__ */
#define __ARCH_WANT_SET_GET_RLIMIT
-#ifndef __LP64__
-#define __ARCH_WANT_TIME32_SYSCALLS
-#endif
+#endif /* __LP64__ */

#include <asm-generic/unistd.h>

diff --git a/arch/riscv/kernel/vdso/Makefile b/arch/riscv/kernel/vdso/Makefile
index eed1c137f618..fec62b24df89 100644
--- a/arch/riscv/kernel/vdso/Makefile
+++ b/arch/riscv/kernel/vdso/Makefile
@@ -2,9 +2,11 @@

# Symbols present in the vdso
vdso-syms = rt_sigreturn
+ifdef CONFIG_64BIT
vdso-syms += gettimeofday
vdso-syms += clock_gettime
vdso-syms += clock_getres
+endif
vdso-syms += getcpu
vdso-syms += flush_icache

--
2.20.0