aboutsummaryrefslogtreecommitdiffstats
path: root/arch
diff options
context:
space:
mode:
authorThomas Gleixner <tglx@linutronix.de>2019-02-27 21:45:27 +0100
committerThomas Gleixner <tglx@linutronix.de>2019-02-27 21:45:27 +0100
commitcfbe271667b7aba03b403aee916ccd457409d2e8 (patch)
treec414127aa33364a7375dc6e736fb5cef931b8b8f /arch
parentMerge tag 'y2038-new-syscalls' of git://git.kernel.org:/pub/scm/linux/kernel/git/arnd/playground into timers/2038 (diff)
parentriscv: Use latest system call ABI (diff)
downloadlinux-dev-cfbe271667b7aba03b403aee916ccd457409d2e8.tar.xz
linux-dev-cfbe271667b7aba03b403aee916ccd457409d2e8.zip
Merge tag 'y2038-syscall-abi' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground into timers/2038
Pull additional syscall ABI cleanup for y2038 from Arnd Bergmann: This is a follow-up to the y2038 syscall patches already merged in the tip tree. As the final 32-bit RISC-V syscall ABI is still being decided on, this is the last chance to make a few corrections to leave out interfaces based on 32-bit time_t along with the old off_t and rlimit types. The series achieves this in a few steps: - A couple of bug fixes for minor regressions I introduced in the original series - A couple of older patches from Yury Norov that I had never merged in the past, these fix up the openat/open_by_handle_at and getrlimit/setrlimit syscalls to disallow the old versions of off_t and rlimit. - Hiding the deprecated system calls behind an #ifdef in include/uapi/asm-generic/unistd.h - Change arch/riscv to drop all these ABIs. Originally, the plan was to also leave these out on C-Sky, but that now has a glibc port that uses the older interfaces, so we need to leave them in place.
Diffstat (limited to 'arch')
-rw-r--r--arch/Kconfig10
-rw-r--r--arch/arc/Kconfig1
-rw-r--r--arch/arc/include/uapi/asm/unistd.h2
-rw-r--r--arch/arm/Kconfig1
-rw-r--r--arch/arm64/include/uapi/asm/unistd.h2
-rw-r--r--arch/c6x/Kconfig1
-rw-r--r--arch/c6x/include/uapi/asm/unistd.h2
-rw-r--r--arch/csky/Kconfig1
-rw-r--r--arch/csky/include/uapi/asm/unistd.h2
-rw-r--r--arch/h8300/Kconfig1
-rw-r--r--arch/h8300/include/uapi/asm/unistd.h2
-rw-r--r--arch/hexagon/Kconfig1
-rw-r--r--arch/hexagon/include/uapi/asm/unistd.h2
-rw-r--r--arch/m68k/Kconfig1
-rw-r--r--arch/microblaze/Kconfig1
-rw-r--r--arch/mips/Kconfig1
-rw-r--r--arch/nds32/Kconfig1
-rw-r--r--arch/nds32/include/uapi/asm/unistd.h2
-rw-r--r--arch/nios2/Kconfig1
-rw-r--r--arch/nios2/include/uapi/asm/unistd.h2
-rw-r--r--arch/openrisc/Kconfig1
-rw-r--r--arch/openrisc/include/uapi/asm/unistd.h2
-rw-r--r--arch/parisc/Kconfig1
-rw-r--r--arch/powerpc/Kconfig1
-rw-r--r--arch/riscv/include/uapi/asm/unistd.h1
-rw-r--r--arch/riscv/kernel/vdso/Makefile2
-rw-r--r--arch/sh/Kconfig1
-rw-r--r--arch/sparc/Kconfig1
-rw-r--r--arch/unicore32/Kconfig1
-rw-r--r--arch/unicore32/include/uapi/asm/unistd.h4
-rw-r--r--arch/x86/Kconfig1
-rw-r--r--arch/x86/um/Kconfig1
-rw-r--r--arch/xtensa/Kconfig1
33 files changed, 54 insertions, 1 deletions
diff --git a/arch/Kconfig b/arch/Kconfig
index 46db715a7f42..cd5f443865ec 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -276,6 +276,16 @@ config ARCH_THREAD_STACK_ALLOCATOR
config ARCH_WANTS_DYNAMIC_TASK_STRUCT
bool
+config ARCH_32BIT_OFF_T
+ bool
+ depends on !64BIT
+ help
+ All new 32-bit architectures should have 64-bit off_t type on
+ userspace side which corresponds to the loff_t kernel type. This
+ is the requirement for modern ABIs. Some existing architectures
+ still support 32-bit off_t. This option is enabled for all such
+ architectures explicitly.
+
config HAVE_REGS_AND_STACK_ACCESS_API
bool
help
diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index 376366a7db81..1cfe4197146f 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -14,6 +14,7 @@ config ARC
select ARCH_HAS_SYNC_DMA_FOR_CPU
select ARCH_HAS_SYNC_DMA_FOR_DEVICE
select ARCH_SUPPORTS_ATOMIC_RMW if ARC_HAS_LLSC
+ select ARCH_32BIT_OFF_T
select BUILDTIME_EXTABLE_SORT
select CLONE_BACKWARDS
select COMMON_CLK
diff --git a/arch/arc/include/uapi/asm/unistd.h b/arch/arc/include/uapi/asm/unistd.h
index 3b3543fd151c..5eafa1115162 100644
--- a/arch/arc/include/uapi/asm/unistd.h
+++ b/arch/arc/include/uapi/asm/unistd.h
@@ -18,10 +18,12 @@
#define __ARCH_WANT_RENAMEAT
#define __ARCH_WANT_STAT64
+#define __ARCH_WANT_SET_GET_RLIMIT
#define __ARCH_WANT_SYS_EXECVE
#define __ARCH_WANT_SYS_CLONE
#define __ARCH_WANT_SYS_VFORK
#define __ARCH_WANT_SYS_FORK
+#define __ARCH_WANT_TIME32_SYSCALLS
#define sys_mmap2 sys_mmap_pgoff
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 664e918e2624..8933f7337e56 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -2,6 +2,7 @@
config ARM
bool
default y
+ select ARCH_32BIT_OFF_T
select ARCH_CLOCKSOURCE_DATA
select ARCH_DISCARD_MEMBLOCK if !HAVE_ARCH_PFN_VALID && !KEXEC
select ARCH_HAS_DEBUG_VIRTUAL if MMU
diff --git a/arch/arm64/include/uapi/asm/unistd.h b/arch/arm64/include/uapi/asm/unistd.h
index dae1584cf017..4703d218663a 100644
--- a/arch/arm64/include/uapi/asm/unistd.h
+++ b/arch/arm64/include/uapi/asm/unistd.h
@@ -17,5 +17,7 @@
#define __ARCH_WANT_RENAMEAT
#define __ARCH_WANT_NEW_STAT
+#define __ARCH_WANT_SET_GET_RLIMIT
+#define __ARCH_WANT_TIME32_SYSCALLS
#include <asm-generic/unistd.h>
diff --git a/arch/c6x/Kconfig b/arch/c6x/Kconfig
index 456e154674d1..e5cd3c5f8399 100644
--- a/arch/c6x/Kconfig
+++ b/arch/c6x/Kconfig
@@ -6,6 +6,7 @@
config C6X
def_bool y
+ select ARCH_32BIT_OFF_T
select ARCH_HAS_SYNC_DMA_FOR_CPU
select ARCH_HAS_SYNC_DMA_FOR_DEVICE
select CLKDEV_LOOKUP
diff --git a/arch/c6x/include/uapi/asm/unistd.h b/arch/c6x/include/uapi/asm/unistd.h
index 6b2fe792de9d..79b724c39d9b 100644
--- a/arch/c6x/include/uapi/asm/unistd.h
+++ b/arch/c6x/include/uapi/asm/unistd.h
@@ -17,7 +17,9 @@
#define __ARCH_WANT_RENAMEAT
#define __ARCH_WANT_STAT64
+#define __ARCH_WANT_SET_GET_RLIMIT
#define __ARCH_WANT_SYS_CLONE
+#define __ARCH_WANT_TIME32_SYSCALLS
/* Use the standard ABI for syscalls. */
#include <asm-generic/unistd.h>
diff --git a/arch/csky/Kconfig b/arch/csky/Kconfig
index 398113c845f5..6959e0b1e956 100644
--- a/arch/csky/Kconfig
+++ b/arch/csky/Kconfig
@@ -1,5 +1,6 @@
config CSKY
def_bool y
+ select ARCH_32BIT_OFF_T
select ARCH_HAS_SYNC_DMA_FOR_CPU
select ARCH_HAS_SYNC_DMA_FOR_DEVICE
select ARCH_USE_BUILTIN_BSWAP
diff --git a/arch/csky/include/uapi/asm/unistd.h b/arch/csky/include/uapi/asm/unistd.h
index 224c9a9ab45b..ec60e49cea66 100644
--- a/arch/csky/include/uapi/asm/unistd.h
+++ b/arch/csky/include/uapi/asm/unistd.h
@@ -2,6 +2,8 @@
// Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd.
#define __ARCH_WANT_SYS_CLONE
+#define __ARCH_WANT_SET_GET_RLIMIT
+#define __ARCH_WANT_TIME32_SYSCALLS
#include <asm-generic/unistd.h>
#define __NR_set_thread_area (__NR_arch_specific_syscall + 0)
diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig
index 6472a0685470..c071da34e081 100644
--- a/arch/h8300/Kconfig
+++ b/arch/h8300/Kconfig
@@ -1,6 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
config H8300
def_bool y
+ select ARCH_32BIT_OFF_T
select GENERIC_ATOMIC64
select HAVE_UID16
select VIRT_TO_BUS
diff --git a/arch/h8300/include/uapi/asm/unistd.h b/arch/h8300/include/uapi/asm/unistd.h
index 628195823816..eb7bc0012af5 100644
--- a/arch/h8300/include/uapi/asm/unistd.h
+++ b/arch/h8300/include/uapi/asm/unistd.h
@@ -2,5 +2,7 @@
#define __ARCH_WANT_RENAMEAT
#define __ARCH_WANT_STAT64
+#define __ARCH_WANT_SET_GET_RLIMIT
+#define __ARCH_WANT_TIME32_SYSCALLS
#include <asm-generic/unistd.h>
diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig
index fb2fbfcfc532..ac441680dcc0 100644
--- a/arch/hexagon/Kconfig
+++ b/arch/hexagon/Kconfig
@@ -4,6 +4,7 @@ comment "Linux Kernel Configuration for Hexagon"
config HEXAGON
def_bool y
+ select ARCH_32BIT_OFF_T
select ARCH_HAS_SYNC_DMA_FOR_DEVICE
select ARCH_NO_PREEMPT
select HAVE_OPROFILE
diff --git a/arch/hexagon/include/uapi/asm/unistd.h b/arch/hexagon/include/uapi/asm/unistd.h
index c91ca7d02461..432c4db1b623 100644
--- a/arch/hexagon/include/uapi/asm/unistd.h
+++ b/arch/hexagon/include/uapi/asm/unistd.h
@@ -30,9 +30,11 @@
#define sys_mmap2 sys_mmap_pgoff
#define __ARCH_WANT_RENAMEAT
#define __ARCH_WANT_STAT64
+#define __ARCH_WANT_SET_GET_RLIMIT
#define __ARCH_WANT_SYS_EXECVE
#define __ARCH_WANT_SYS_CLONE
#define __ARCH_WANT_SYS_VFORK
#define __ARCH_WANT_SYS_FORK
+#define __ARCH_WANT_TIME32_SYSCALLS
#include <asm-generic/unistd.h>
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index e173ea2ff395..b54206408f91 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -2,6 +2,7 @@
config M68K
bool
default y
+ select ARCH_32BIT_OFF_T
select ARCH_HAS_SYNC_DMA_FOR_DEVICE if HAS_DMA
select ARCH_MIGHT_HAVE_PC_PARPORT if ISA
select ARCH_NO_COHERENT_DMA_MMAP if !MMU
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index 58aff2653d86..a51b965b3b82 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -1,5 +1,6 @@
config MICROBLAZE
def_bool y
+ select ARCH_32BIT_OFF_T
select ARCH_NO_SWAP
select ARCH_HAS_DMA_COHERENT_TO_PFN if MMU
select ARCH_HAS_GCOV_PROFILE_ALL
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 0d14f51d0002..616fc853a46d 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -2,6 +2,7 @@
config MIPS
bool
default y
+ select ARCH_32BIT_OFF_T if !64BIT
select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT
select ARCH_CLOCKSOURCE_DATA
select ARCH_DISCARD_MEMBLOCK
diff --git a/arch/nds32/Kconfig b/arch/nds32/Kconfig
index dda1906bba11..addb7f5f5264 100644
--- a/arch/nds32/Kconfig
+++ b/arch/nds32/Kconfig
@@ -5,6 +5,7 @@
config NDS32
def_bool y
+ select ARCH_32BIT_OFF_T
select ARCH_HAS_SYNC_DMA_FOR_CPU
select ARCH_HAS_SYNC_DMA_FOR_DEVICE
select ARCH_WANT_FRAME_POINTERS if FTRACE
diff --git a/arch/nds32/include/uapi/asm/unistd.h b/arch/nds32/include/uapi/asm/unistd.h
index c2c3a3e34083..4ec8f543103f 100644
--- a/arch/nds32/include/uapi/asm/unistd.h
+++ b/arch/nds32/include/uapi/asm/unistd.h
@@ -3,6 +3,8 @@
#define __ARCH_WANT_STAT64
#define __ARCH_WANT_SYNC_FILE_RANGE2
+#define __ARCH_WANT_SET_GET_RLIMIT
+#define __ARCH_WANT_TIME32_SYSCALLS
/* Use the standard ABI for syscalls */
#include <asm-generic/unistd.h>
diff --git a/arch/nios2/Kconfig b/arch/nios2/Kconfig
index 532343eebf89..c3e913ef4f0c 100644
--- a/arch/nios2/Kconfig
+++ b/arch/nios2/Kconfig
@@ -1,6 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
config NIOS2
def_bool y
+ select ARCH_32BIT_OFF_T
select ARCH_HAS_SYNC_DMA_FOR_CPU
select ARCH_HAS_SYNC_DMA_FOR_DEVICE
select ARCH_NO_SWAP
diff --git a/arch/nios2/include/uapi/asm/unistd.h b/arch/nios2/include/uapi/asm/unistd.h
index d9948d88790b..0b4bb1d41b28 100644
--- a/arch/nios2/include/uapi/asm/unistd.h
+++ b/arch/nios2/include/uapi/asm/unistd.h
@@ -20,6 +20,8 @@
#define __ARCH_WANT_RENAMEAT
#define __ARCH_WANT_STAT64
+#define __ARCH_WANT_SET_GET_RLIMIT
+#define __ARCH_WANT_TIME32_SYSCALLS
/* Use the standard ABI for syscalls */
#include <asm-generic/unistd.h>
diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig
index 09ab59e942ae..a5e361fbb75a 100644
--- a/arch/openrisc/Kconfig
+++ b/arch/openrisc/Kconfig
@@ -6,6 +6,7 @@
config OPENRISC
def_bool y
+ select ARCH_32BIT_OFF_T
select ARCH_HAS_SYNC_DMA_FOR_DEVICE
select OF
select OF_EARLY_FLATTREE
diff --git a/arch/openrisc/include/uapi/asm/unistd.h b/arch/openrisc/include/uapi/asm/unistd.h
index ec37df18d8ed..566f8c4f8047 100644
--- a/arch/openrisc/include/uapi/asm/unistd.h
+++ b/arch/openrisc/include/uapi/asm/unistd.h
@@ -21,8 +21,10 @@
#define __ARCH_WANT_RENAMEAT
#define __ARCH_WANT_STAT64
+#define __ARCH_WANT_SET_GET_RLIMIT
#define __ARCH_WANT_SYS_FORK
#define __ARCH_WANT_SYS_CLONE
+#define __ARCH_WANT_TIME32_SYSCALLS
#include <asm-generic/unistd.h>
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 7ca2c3ebad64..c8e621296092 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -1,6 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
config PARISC
def_bool y
+ select ARCH_32BIT_OFF_T if !64BIT
select ARCH_MIGHT_HAVE_PC_PARPORT
select HAVE_IDE
select HAVE_OPROFILE
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 2890d36eb531..375d0dc0dc7d 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -128,6 +128,7 @@ config PPC
#
# Please keep this list sorted alphabetically.
#
+ select ARCH_32BIT_OFF_T if PPC32
select ARCH_HAS_DEBUG_VIRTUAL
select ARCH_HAS_DEVMEM_IS_ALLOWED
select ARCH_HAS_DMA_SET_COHERENT_MASK
diff --git a/arch/riscv/include/uapi/asm/unistd.h b/arch/riscv/include/uapi/asm/unistd.h
index 1f3bd3ebbb0d..0e2eeeb1fd27 100644
--- a/arch/riscv/include/uapi/asm/unistd.h
+++ b/arch/riscv/include/uapi/asm/unistd.h
@@ -17,6 +17,7 @@
#ifdef __LP64__
#define __ARCH_WANT_NEW_STAT
+#define __ARCH_WANT_SET_GET_RLIMIT
#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
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index a9c36f95744a..d9a9144dec35 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -62,6 +62,7 @@ config SUPERH
config SUPERH32
def_bool "$(ARCH)" = "sh"
+ select ARCH_32BIT_OFF_T
select HAVE_KPROBES
select HAVE_KRETPROBES
select HAVE_IOREMAP_PROT if MMU && !X2TLB
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index d5dd652fb8cc..40f8f4f73fe8 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -49,6 +49,7 @@ config SPARC
config SPARC32
def_bool !64BIT
+ select ARCH_32BIT_OFF_T
select ARCH_HAS_SYNC_DMA_FOR_CPU
select GENERIC_ATOMIC64
select CLZ_TAB
diff --git a/arch/unicore32/Kconfig b/arch/unicore32/Kconfig
index c3a41bfe161b..a7f1ae58d211 100644
--- a/arch/unicore32/Kconfig
+++ b/arch/unicore32/Kconfig
@@ -1,6 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
config UNICORE32
def_bool y
+ select ARCH_32BIT_OFF_T
select ARCH_HAS_DEVMEM_IS_ALLOWED
select ARCH_MIGHT_HAVE_PC_PARPORT
select ARCH_MIGHT_HAVE_PC_SERIO
diff --git a/arch/unicore32/include/uapi/asm/unistd.h b/arch/unicore32/include/uapi/asm/unistd.h
index 1e8fe5941b8a..54a7378a70b1 100644
--- a/arch/unicore32/include/uapi/asm/unistd.h
+++ b/arch/unicore32/include/uapi/asm/unistd.h
@@ -12,8 +12,10 @@
*/
#define __ARCH_WANT_RENAMEAT
+#define __ARCH_WANT_SET_GET_RLIMIT
+#define __ARCH_WANT_STAT64
+#define __ARCH_WANT_TIME32_SYSCALLS
/* Use the standard ABI for syscalls. */
#include <asm-generic/unistd.h>
-#define __ARCH_WANT_STAT64
#define __ARCH_WANT_SYS_CLONE
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 68261430fe6e..13c988009b2d 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -47,6 +47,7 @@ config X86
select ACPI_LEGACY_TABLES_LOOKUP if ACPI
select ACPI_SYSTEM_POWER_STATES_SUPPORT if ACPI
select ANON_INODES
+ select ARCH_32BIT_OFF_T if X86_32
select ARCH_CLOCKSOURCE_DATA
select ARCH_CLOCKSOURCE_INIT
select ARCH_DISCARD_MEMBLOCK
diff --git a/arch/x86/um/Kconfig b/arch/x86/um/Kconfig
index f518b4744ff8..ab14e6f73ca4 100644
--- a/arch/x86/um/Kconfig
+++ b/arch/x86/um/Kconfig
@@ -17,6 +17,7 @@ config 64BIT
config X86_32
def_bool !64BIT
select HAVE_AOUT
+ select ARCH_32BIT_OFF_T
select ARCH_WANT_IPC_PARSE_VERSION
select MODULES_USE_ELF_REL
select CLONE_BACKWARDS
diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
index ce91682770cb..963986a48c62 100644
--- a/arch/xtensa/Kconfig
+++ b/arch/xtensa/Kconfig
@@ -1,6 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
config XTENSA
def_bool y
+ select ARCH_32BIT_OFF_T
select ARCH_HAS_SYNC_DMA_FOR_CPU
select ARCH_HAS_SYNC_DMA_FOR_DEVICE
select ARCH_NO_COHERENT_DMA_MMAP if !MMU