riscv: Use latest system call ABI

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.

Reviewed-by: Palmer Dabbelt <palmer@sifive.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index 09fa3a87bf30153366a76cad99f1a29d8a61d8ea..feeeaa60697caae10cbfa1cbcff6b316440a048b 100644 (file)
--- 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 486a288b454c3ca09164ac3002dd50f70860ae18..0e2eeeb1fd27bdca3b4b8e3ca88e2bcd3bdc6fa0 100644 (file)
--- 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 eed1c137f6183a1d4f4f8303df8a0e8c12cf1f2b..fec62b24df8960bfd77a3c669eb65f6741a3dd67 100644 (file)
--- 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