add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/tools/testing/selftests/sigaltstack/sas.c
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@@ -19,6 +19,7 @@
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 #include <errno.h>
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 #include "../kselftest.h"
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+#include "current_stack_pointer.h"
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 #ifndef SS_AUTODISARM
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 #define SS_AUTODISARM  (1U << 31)
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@@ -39,12 +40,6 @@
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 	int err;
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 	stack_t stk;
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 	struct stk_data *p;
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-
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-#if __s390x__
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-	register unsigned long sp asm("%15");
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-#else
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-	register unsigned long sp asm("sp");
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-#endif
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 	if (sp < (unsigned long)sstack ||
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 			sp >= (unsigned long)sstack + SIGSTKSZ) {
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@@ -71,7 +66,7 @@
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 	swapcontext(&sc, &uc);
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 	ksft_print_msg("%s\n", p->msg);
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 	if (!p->flag) {
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-		ksft_exit_skip("[RUN]\tAborting\n");
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+		ksft_exit_fail_msg("[RUN]\tAborting\n");
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 		exit(EXIT_FAILURE);
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 	}
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 }
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@@ -109,6 +104,7 @@
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 	int err;
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 	ksft_print_header();
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+	ksft_set_plan(3);
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 	sigemptyset(&act.sa_mask);
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 	act.sa_flags = SA_ONSTACK | SA_SIGINFO;
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@@ -143,7 +139,7 @@
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 	err = sigaltstack(&stk, NULL);
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 	if (err) {
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 		if (errno == EINVAL) {
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-			ksft_exit_skip(
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+			ksft_test_result_skip(
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 				"[NOTE]\tThe running kernel doesn't support SS_AUTODISARM\n");
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 			/*
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 			 * If test cases for the !SS_AUTODISARM variant were