From 80d7da1cac62f28b3df4880e8143b39cabb4b59a Mon Sep 17 00:00:00 2001 From: Yury Norov Date: Wed, 16 May 2018 11:18:50 +0300 Subject: asm-generic: Drop getrlimit and setrlimit syscalls from default list The newer prlimit64 syscall provides all the functionality of getrlimit and setrlimit syscalls and adds the pid of target process, so future architectures won't need to include getrlimit and setrlimit. Therefore drop getrlimit and setrlimit syscalls from the generic syscall list unless __ARCH_WANT_SET_GET_RLIMIT is defined by the architecture's unistd.h prior to including asm-generic/unistd.h, and adjust all architectures using the generic syscall list to define it so that no in-tree architectures are affected. Cc: Arnd Bergmann Cc: linux-arch@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-hexagon@vger.kernel.org Cc: uclinux-h8-devel@lists.sourceforge.jp Signed-off-by: Yury Norov Acked-by: Arnd Bergmann Acked-by: Mark Salter [c6x] Acked-by: James Hogan [metag] Acked-by: Ley Foon Tan [nios2] Acked-by: Stafford Horne [openrisc] Acked-by: Will Deacon [arm64] Acked-by: Vineet Gupta #arch/arc bits Signed-off-by: Yury Norov Signed-off-by: Arnd Bergmann --- scripts/checksyscalls.sh | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'scripts') diff --git a/scripts/checksyscalls.sh b/scripts/checksyscalls.sh index cc70a64fa81f..53c5677d7e82 100755 --- a/scripts/checksyscalls.sh +++ b/scripts/checksyscalls.sh @@ -38,6 +38,11 @@ cat << EOF #define __IGNORE_lstat64 /* fstatat64 */ #endif +#ifndef __ARCH_WANT_SET_GET_RLIMIT +#define __IGNORE_getrlimit /* getrlimit */ +#define __IGNORE_setrlimit /* setrlimit */ +#endif + /* Missing flags argument */ #define __IGNORE_renameat /* renameat2 */ -- cgit v1.2.3 From c8ce48f06503eee20f189eed5b2aa736272b7344 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Mon, 18 Feb 2019 17:30:06 +0100 Subject: asm-generic: Make time32 syscall numbers optional We don't want new architectures to even provide the old 32-bit time_t based system calls any more, or define the syscall number macros. Add a new __ARCH_WANT_TIME32_SYSCALLS macro that gets enabled for all existing 32-bit architectures using the generic system call table, so we don't change any current behavior. Since this symbol is evaluated in user space as well, we cannot use a Kconfig CONFIG_* macro but have to define it in uapi/asm/unistd.h. On 64-bit architectures, the same system call numbers mostly refer to the system calls we want to keep, as they already pass 64-bit time_t. As new architectures no longer provide these, we need new exceptions in checksyscalls.sh. Signed-off-by: Arnd Bergmann --- scripts/checksyscalls.sh | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'scripts') diff --git a/scripts/checksyscalls.sh b/scripts/checksyscalls.sh index 53c5677d7e82..ffd635efbdca 100755 --- a/scripts/checksyscalls.sh +++ b/scripts/checksyscalls.sh @@ -143,6 +143,13 @@ cat << EOF #define __IGNORE_rt_sigtimedwait #define __IGNORE_futex #define __IGNORE_sched_rr_get_interval +#define __IGNORE_gettimeofday +#define __IGNORE_settimeofday +#define __IGNORE_wait4 +#define __IGNORE_adjtimex +#define __IGNORE_nanosleep +#define __IGNORE_io_getevents +#define __IGNORE_recvmmsg #endif /* i386-specific or historical system calls */ -- cgit v1.2.3 From 1d5b82331ee8b8f2c951b055329b943efcf5c834 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Mon, 18 Feb 2019 21:14:32 +0100 Subject: checksyscalls: fix up mq_timedreceive and stat exceptions mq_timedreceive was spelled incorrectly, and we need exceptions for new architectures that leave out newstat or stat64, implementing only statx() now. Fixes: 48166e6ea47d ("y2038: add 64-bit time_t syscalls to all 32-bit architectures") Fixes: bf4b6a7d371e ("y2038: Remove stat64 family from default syscall set") Signed-off-by: Arnd Bergmann --- scripts/checksyscalls.sh | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) (limited to 'scripts') diff --git a/scripts/checksyscalls.sh b/scripts/checksyscalls.sh index ffd635efbdca..a18b47695f55 100755 --- a/scripts/checksyscalls.sh +++ b/scripts/checksyscalls.sh @@ -30,13 +30,10 @@ cat << EOF #define __IGNORE_readlink /* readlinkat */ #define __IGNORE_symlink /* symlinkat */ #define __IGNORE_utimes /* futimesat */ -#if BITS_PER_LONG == 64 #define __IGNORE_stat /* fstatat */ #define __IGNORE_lstat /* fstatat */ -#else #define __IGNORE_stat64 /* fstatat64 */ #define __IGNORE_lstat64 /* fstatat64 */ -#endif #ifndef __ARCH_WANT_SET_GET_RLIMIT #define __IGNORE_getrlimit /* getrlimit */ @@ -138,7 +135,7 @@ cat << EOF #define __IGNORE_io_pgetevents #define __IGNORE_recvmmsg #define __IGNORE_mq_timedsend -#define __IGNORE_mq_timedreceiv +#define __IGNORE_mq_timedreceive #define __IGNORE_semtimedop #define __IGNORE_rt_sigtimedwait #define __IGNORE_futex -- cgit v1.2.3