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Diffstat (limited to 'stdlib/tst-setcontext2.c')
| -rw-r--r-- | stdlib/tst-setcontext2.c | 230 |
1 files changed, 0 insertions, 230 deletions
diff --git a/stdlib/tst-setcontext2.c b/stdlib/tst-setcontext2.c deleted file mode 100644 index 07fb974c46..0000000000 --- a/stdlib/tst-setcontext2.c +++ /dev/null @@ -1,230 +0,0 @@ -/* Testcase checks, if setcontext(), swapcontext() restores signal-mask - and if pending signals are delivered after those calls. - Copyright (C) 2015-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#include <stdio.h> -#include <stdlib.h> -#include <sys/types.h> -#include <signal.h> -#include <ucontext.h> -#include <unistd.h> - -volatile int global; -volatile sig_atomic_t handlerCalled; - -static void -check (const char *funcName) -{ - sigset_t set; - - /* check if SIGUSR2 is unblocked after setcontext-call. */ - sigprocmask (SIG_BLOCK, NULL, &set); - - if (sigismember (&set, SIGUSR2) != 0) - { - printf ("FAIL: SIGUSR2 is blocked after %s.\n", funcName); - exit (1); - } - - if (sigismember (&set, SIGUSR1) != 1) - { - printf ("FAIL: SIGUSR1 is not blocked after %s.\n", funcName); - exit (1); - } -} - -static void -signalmask (int how, int signum) -{ - sigset_t set; - sigemptyset (&set); - sigaddset (&set, signum); - if (sigprocmask (how, &set, NULL) != 0) - { - printf ("FAIL: sigprocmaks (%d, %d, NULL): %m\n", how, signum); - exit (1); - } -} - -static void -signalpending (int signum, const char *msg) -{ - sigset_t set; - sigemptyset (&set); - if (sigpending (&set) != 0) - { - printf ("FAIL: sigpending: %m\n"); - exit (1); - } - if (sigismember (&set, SIGUSR2) != 1) - { - printf ("FAIL: Signal %d is not pending %s\n", signum, msg); - exit (1); - } -} - -static void -handler (int __attribute__ ((unused)) signum) -{ - handlerCalled ++; -} - -static int -do_test (void) -{ - ucontext_t ctx, oldctx; - struct sigaction action; - pid_t pid; - - pid = getpid (); - - /* unblock SIGUSR2 */ - signalmask (SIG_UNBLOCK, SIGUSR2); - - /* block SIGUSR1 */ - signalmask (SIG_BLOCK, SIGUSR1); - - /* register handler for SIGUSR2 */ - action.sa_flags = 0; - action.sa_handler = handler; - sigemptyset (&action.sa_mask); - sigaction (SIGUSR2, &action, NULL); - - if (getcontext (&ctx) != 0) - { - printf ("FAIL: getcontext: %m\n"); - exit (1); - } - - global++; - - if (global == 1) - { - puts ("after getcontext"); - - /* block SIGUSR2 */ - signalmask (SIG_BLOCK, SIGUSR2); - - /* send SIGUSR2 to me */ - handlerCalled = 0; - kill (pid, SIGUSR2); - - /* was SIGUSR2 handler called? */ - if (handlerCalled != 0) - { - puts ("FAIL: signal handler was called, but signal was blocked."); - exit (1); - } - - /* is SIGUSR2 pending? */ - signalpending (SIGUSR2, "before setcontext"); - - /* SIGUSR2 will be unblocked by setcontext-call. */ - if (setcontext (&ctx) != 0) - { - printf ("FAIL: setcontext: %m\n"); - exit (1); - } - } - else if (global == 2) - { - puts ("after setcontext"); - - /* check SIGUSR1/2 */ - check ("setcontext"); - - /* was SIGUSR2 handler called? */ - if (handlerCalled != 1) - { - puts ("FAIL: signal handler was not called after setcontext."); - exit (1); - } - - /* block SIGUSR2 */ - signalmask (SIG_BLOCK, SIGUSR2); - - /* send SIGUSR2 to me */ - handlerCalled = 0; - kill (pid, SIGUSR2); - - /* was SIGUSR2 handler called? */ - if (handlerCalled != 0) - { - puts ("FAIL: signal handler was called, but signal was blocked."); - exit (1); - } - - /* is SIGUSR2 pending? */ - signalpending (SIGUSR2, "before swapcontext"); - - if (swapcontext (&oldctx, &ctx) != 0) - { - printf ("FAIL: swapcontext: %m\n"); - exit (1); - } - - puts ("after returned from swapcontext"); - - if (global != 3) - { - puts ("FAIL: returned from swapcontext without ctx-context called."); - exit (1); - } - - puts ("test succeeded"); - return 0; - } - else if ( global != 3 ) - { - puts ("FAIL: 'global' not incremented three times"); - exit (1); - } - - puts ("after swapcontext"); - /* check SIGUSR1/2 */ - check ("swapcontext"); - - /* was SIGUSR2 handler called? */ - if (handlerCalled != 1) - { - puts ("FAIL: signal handler was not called after swapcontext."); - exit (1); - } - - /* check sigmask in old context of swapcontext-call */ - if (sigismember (&oldctx.uc_sigmask, SIGUSR2) != 1) - { - puts ("FAIL: SIGUSR2 is not blocked in oldctx.uc_sigmask."); - exit (1); - } - - if (sigismember (&oldctx.uc_sigmask, SIGUSR1) != 1) - { - puts ("FAIL: SIGUSR1 is not blocked in oldctx.uc_sigmaks."); - exit (1); - } - - /* change to old context, which was gathered by swapcontext() call. */ - setcontext (&oldctx); - - puts ("FAIL: returned from setcontext (&oldctx)"); - exit (1); -} - -#define TEST_FUNCTION do_test () -#include "../test-skeleton.c" |