From: Mao Minkai <maominkai@wxiat.com> Sunway inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I56XYC -------------------------------- Signed-off-by: Mao Minkai <maominkai@wxiat.com> Signed-off-by: Gu Zitao <guzitao@wxiat.com> Acked-by: Xie XiuQi <xiexiuqi@huawei.com> Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com> --- arch/sw_64/kernel/signal.c | 16 ++++++++++++++++ arch/sw_64/kernel/syscalls/syscall.tbl | 4 ++-- 2 files changed, 18 insertions(+), 2 deletions(-) diff --git a/arch/sw_64/kernel/signal.c b/arch/sw_64/kernel/signal.c index 8b966e1c38aa..96c83fc818a3 100644 --- a/arch/sw_64/kernel/signal.c +++ b/arch/sw_64/kernel/signal.c @@ -10,6 +10,7 @@ #include <linux/signal.h> #include <linux/errno.h> #include <linux/tracehook.h> +#include <linux/syscalls.h> #include <asm/ucontext.h> #include <asm/vdso.h> @@ -23,6 +24,21 @@ asmlinkage void ret_from_sys_call(void); +SYSCALL_DEFINE2(odd_sigprocmask, int, how, unsigned long, newmask) +{ + sigset_t oldmask; + sigset_t mask; + unsigned long res; + + siginitset(&mask, newmask & _BLOCKABLE); + res = sigprocmask(how, &mask, &oldmask); + if (!res) { + force_successful_syscall_return(); + res = oldmask.sig[0]; + } + return res; +} + /* * Do a signal return; undo the signal stack. */ diff --git a/arch/sw_64/kernel/syscalls/syscall.tbl b/arch/sw_64/kernel/syscalls/syscall.tbl index 98c36d1dbf20..e9dced7516ab 100644 --- a/arch/sw_64/kernel/syscalls/syscall.tbl +++ b/arch/sw_64/kernel/syscalls/syscall.tbl @@ -55,7 +55,7 @@ 45 common open sys_open #46 is unused 47 common getxgid sys_getxgid -48 common sigprocmask sys_sigprocmask +48 common odd_sigprocmask sys_odd_sigprocmask #49 is unused #50 is unused 51 common acct sys_acct @@ -306,7 +306,7 @@ #296 is unused #297 is unused 298 common getpriority sys_getpriority -#299 is unused +299 common sigprocmask sys_sigprocmask 300 common bdflush sys_bdflush #301 is unused 302 common mount sys_mount -- 2.20.1