[LTP] [PATCH 8/8] syscalls: Remove old epoll-ltp test

[Cyril Hrubis <chrubis@suse.cz>]

Now that the epoll coverate is greater than it ever was we can remove
the old and ugly epoll-ltp test.

Fixes: https://github.com/linux-test-project/ltp/issues/860
Signed-off-by: Cyril Hrubis <chrubis@suse.cz>
---
 runtest/syscalls                            |   2 +-
 testcases/kernel/syscalls/epoll/.gitignore  |   1 -
 testcases/kernel/syscalls/epoll/Makefile    |   8 -
 testcases/kernel/syscalls/epoll/README.1ST  |  38 -
 testcases/kernel/syscalls/epoll/epoll-ltp.c | 738 --------------------
 5 files changed, 1 insertion(+), 786 deletions(-)
 delete mode 100644 testcases/kernel/syscalls/epoll/.gitignore
 delete mode 100644 testcases/kernel/syscalls/epoll/Makefile
 delete mode 100644 testcases/kernel/syscalls/epoll/README.1ST
 delete mode 100644 testcases/kernel/syscalls/epoll/epoll-ltp.c

diff --git a/runtest/syscalls b/runtest/syscalls
index 0200a9e13..2984f8ba9 100644
--- a/runtest/syscalls
+++ b/runtest/syscalls
@@ -181,7 +181,7 @@ epoll_create03 epoll_create03
 
 epoll_create1_01 epoll_create1_01
 epoll_create1_02 epoll_create1_02
-epoll01 epoll-ltp
+
 epoll_ctl01 epoll_ctl01
 epoll_ctl02 epoll_ctl02
 epoll_ctl03 epoll_ctl03
diff --git a/testcases/kernel/syscalls/epoll/.gitignore b/testcases/kernel/syscalls/epoll/.gitignore
deleted file mode 100644
index dfb4445db..000000000
--- a/testcases/kernel/syscalls/epoll/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-/epoll-ltp
diff --git a/testcases/kernel/syscalls/epoll/Makefile b/testcases/kernel/syscalls/epoll/Makefile
deleted file mode 100644
index 044619fb8..000000000
--- a/testcases/kernel/syscalls/epoll/Makefile
+++ /dev/null
@@ -1,8 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
-# Copyright (c) International Business Machines  Corp., 2001
-
-top_srcdir		?= ../../../..
-
-include $(top_srcdir)/include/mk/testcases.mk
-
-include $(top_srcdir)/include/mk/generic_leaf_target.mk
diff --git a/testcases/kernel/syscalls/epoll/README.1ST b/testcases/kernel/syscalls/epoll/README.1ST
deleted file mode 100644
index e5c5fcc5c..000000000
--- a/testcases/kernel/syscalls/epoll/README.1ST
+++ /dev/null
@@ -1,38 +0,0 @@
-Epoll Setup
-
-
-	** Directions for glibc version of 2.3.2 or higher **
-
-Epoll support is currently implemented in glibc 2.3.2, therefore if you have a$
-glibc version of 2.3.2 or higher then do the following steps:
-
-1. Download and untar the epoll library from:
-  http://www.xmailserver.org/linux-patches/epoll-lib-0.11.tar.gz
-2. Copy <epoll-lib_directory>/include/epoll.h    /usr/include
-3. Compile epoll-ltp.c in the  <ltp_dir>testcases/kernel/syscall/epoll
-
-
-
-	** Older version of glibc **
-To compile the epoll-ltp successfully the following libraries are needed:
-
-Epoll library http://www.xmailserver.org/linux-patches/epoll-lib-0.11.tar.gz
-Portable Coroutine Library (PCL)  http://www.xmailserver.org/libpcl.html
-
-
-1.	Download and untar the PCL library
-2.	Run ./configure
-3.	Run make
-4.	Run make install
-5.	Copy <libpcl_directory>/pcl/.libs/libpcl.* /lib
-6.	Download and untar the epoll library
-7.	*You may have to modify the makefile in <epoll-lib_directory>/Makefile and <epoll-lib_directory>/examples/Makefile with the following
--	KERNELDIR = kernel_directory
--	#all: .depend $(TARGET) epoll-example  change this line to$
--	all: .$(TARGET) epoll-example
--	#include .depend  comment out this line
-8.	Copy <epoll-lib_directory>/include/epoll.h    /usr/include
-9.	<epoll-lib_directory>  make
-10. Copy <epoll-lib_directory>/lib/libepoll*    /lib
-11. Compile epoll-ltp.c in the  <ltp_dir>testcases/kernel/syscall/epoll
-
diff --git a/testcases/kernel/syscalls/epoll/epoll-ltp.c b/testcases/kernel/syscalls/epoll/epoll-ltp.c
deleted file mode 100644
index dac132e2f..000000000
--- a/testcases/kernel/syscalls/epoll/epoll-ltp.c
+++ /dev/null
@@ -1,738 +0,0 @@
-/*
- *
- * Copyright (c) International Business Machines  Corp., 2001
- *
- * This program is free software;  you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program;  if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
- */
-
-/******************************************************************************
-
-   File:        epoll-ltp.c
-
-   Description:
-     Test the epoll_* system calls. This test program attempts to
-     be very thorough in exercising epoll_* system calls. Large
-     combinations of valid and invalid parameters are passed with
-     valid and invalid sequences. Due to the combinatorial nature
-     of this test program the test may take a "long" time to
-     execute.
-
-   Total Tests: 2 (2 system calls are being tested for)
-
-   Test Name:   epoll_create, epoll_ctl
-
-   Test Assertion
-   & Strategy:  Test a variety of incorrect parameters for epoll_create
-
-                Then run a reasonable epoll_create and get a fd for the epoll
-                     set.
-
-                Next run epoll_ctl on that fd (epoll_fd) with a variety of
-                     incorrect parameters and a couple correct ones.
-
-                Finally ?How to thoroughly test epoll_wait?
-
-   Author:      Matt Helsley <matthltc@us.ibm.com>
-
-   History:     Created - May 22 2003 - Matt Helsley <matthltc@us.ibm.com>
-                Added   -
-
-   Notes: Currently we assume that the OS will never allocate an fd s.t.
-          fd == INT_MAX and that it will instead choose to allocate fds
-          from the "low" numbers. -MH
-
-   Currently pokes epoll_create several times in 2 + NUM_RAND_ATTEMPTS ways
-             pokes epoll_ctl 27648 - (2 + NUM_RAND_ATTEMPTS) ways
-             does not poke epoll_wait
-
-   TODO: change errno test code to build lists of possible errno values for
-            each erroneous parameter. Check that the errno value is in one
-            of the lists. Currently errno is not checked at all when multiple
-            erroneous parameters are passed in.
-
-         test epoll_ctl with a large number of file descriptor events in the
-            set
-
-   Link against epoll and ltp (-lepoll -lltp)
-
-*******************************************************************************/
-
-#ifndef _GNU_SOURCE
-#define _GNU_SOURCE
-#endif
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <stdarg.h>
-#include <string.h>
-#include <signal.h>
-#include <assert.h>
-#include <limits.h>
-#include <ctype.h>
-#include <time.h>
-#include <errno.h>
-#include <signal.h>
-#include <sys/types.h>
-#include <sys/time.h>
-#include <sys/file.h>
-#include <sys/ioctl.h>
-#include <sys/mman.h>
-#include <sys/select.h>
-#include <sys/wait.h>
-
-#include "config.h"
-#include "test.h"
-
-char *TCID = "epoll01";
-int TST_TOTAL = 1;
-
-#ifdef HAVE_SYS_EPOLL_H
-
-#include <sys/epoll.h>
-
-/* Local Defines */
-#if !defined(TRUE) && !defined(FALSE)
-#define TRUE  1
-#define FALSE 0
-#endif
-
-#define NUM_RAND_ATTEMPTS 16
-#define BACKING_STORE_SIZE_HINT 32
-
-/*
-  Define the beginning of a "protected region".
-  This is a region where a wide variety of errors
-  could occur or signals could arrive (including
-  SIGSEGV and SIGKILL).
-$
-  The test program uses this to catch those
-  conditions as best it can and continue testing.
-
-  The region MUST be marked by a corresponding
-  PROTECT_REGION_END.
-
-  DO NOT nest protected regions! i.e. Do not build
-  code of the form:
-
-	PROTECT_REGION_START
-              ...
-	PROTECT_REGION_START
-              ...
-	PROTECT_REGION_END
-              ...
-	PROTECT_REGION_END
- */
-#define PROTECT_REGION_START		\
-do {					\
-	pid_t kid_pid;			\
-	int kid_status;			\
-					\
-	tst_old_flush();			\
-	kid_pid = tst_fork();	\
-	if (kid_pid == 0) {
-
-#define PROTECT_REGION_EXIT(errval) return (errval);
-
-#define PROTECT_REGION_END(result, errval)					\
-	return 0;								\
-	} else {								\
-	 waitpid(kid_pid, &kid_status, 0);					\
-	 if (WIFEXITED(kid_status)) {						\
-		(result) = WEXITSTATUS(kid_status);				\
-	} else { /* Must have been signaled */					\
-		(result) = (errval);						\
-		if (WIFSIGNALED(kid_status))						\
-			tst_resm(TFAIL, "Protected function test exited due to signal %d (%s)", \
-				WTERMSIG(kid_status), strsignal(WTERMSIG(kid_status)));	\
-		}								\
-	}									\
-} while (0)
-
-/*
- * Call a function in a "protected" context.
- * This protects the test program proper from segfaults
- * and allows for the extraction of an integer return
- * code.
- *
- * return only integer results.
- */
-#define PROTECT_FUNC(fn, errval, epoll_fd) (					\
-{										\
-	pid_t kid_pid;								\
-	int kid_status;								\
-										\
-	tst_old_flush();								\
-	kid_pid = tst_fork();						\
-	if (kid_pid == 0) { /* Run the function */				\
-		return fn(epoll_fd);						\
-	} else {								\
-		waitpid(kid_pid, &kid_status, 0);				\
-		if (WIFEXITED(kid_status)) {					\
-		kid_status = WEXITSTATUS(kid_status);				\
-	} else { /* Must have been signaled */					\
-		kid_status = (errval);						\
-		if (WIFSIGNALED(kid_status))					\
-			tst_resm(TFAIL, "Protected function test exited due to signal %d (%s)", \
-						WTERMSIG(kid_status), strsignal(WTERMSIG(kid_status))); \
-	}									\
-}										\
-kid_status = kid_status;})
-
-/*
- * Given the number of random size requests to test,
- * test various boundary cases of epoll_create().
- *
- * Return the number of tests that failed. 0 indicates
- * 100% passed.
- */
-int test_epoll_create(unsigned int num_rand_attempts)
-{
-	int epoll_fd = -1;
-	int fd_set_size = -1;
-	unsigned int attempt_count;
-	unsigned int num_epoll_create_test_fails = 0;
-	unsigned int num_epoll_create_test_calls = 0;
-
-	/* Negative set sizes */
-	errno = 0;
-	fd_set_size = -1;
-	num_epoll_create_test_calls++;
-	epoll_fd = epoll_create(fd_set_size);
-	if (epoll_fd >= 0) {
-		tst_resm(TFAIL | TERRNO,
-			 "epoll_create with negative set size succeeded unexpectedly");
-		num_epoll_create_test_fails++;
-		close(epoll_fd);
-	} else {
-		if (errno != EINVAL) {
-			tst_resm(TFAIL | TERRNO,
-				 "epoll_create with negative set size didn't set errno to EINVAL");
-			num_epoll_create_test_fails++;
-		} else {
-			tst_resm(TPASS, "epoll_create with negative set size");
-		}
-	}
-
-	/* Large set sizes -- try several less than or equal to INT_MAX by some
-	   small amount (expect num_rand_attempts to be approximately the
-	   amount we'd like to go below INT_MAX). */
-	fd_set_size = INT_MAX;
-	for (attempt_count = num_rand_attempts; attempt_count > 0;
-	     attempt_count--, fd_set_size--) {
-		num_epoll_create_test_calls++;
-		epoll_fd = epoll_create(fd_set_size);
-		if (epoll_fd == -1) {
-			if (errno != ENOMEM) {
-				tst_resm(TFAIL,
-					 "epoll_create with large set size (size = %d)",
-					 fd_set_size);
-				num_epoll_create_test_fails++;
-			} else {
-				tst_resm(TPASS,
-					 "epoll_create with large set size (size = %d)",
-					 fd_set_size);
-			}
-		} else {
-			tst_resm(TPASS,
-				 "epoll_create with large set size (size = %d)",
-				 fd_set_size);
-			close(epoll_fd);
-		}
-	}
-
-	/* Random large set sizes */
-	for (attempt_count = num_rand_attempts; attempt_count > 0;
-	     attempt_count--) {
-		fd_set_size = abs(rand() + SHRT_MAX) % INT_MAX;
-		errno = 0;
-		num_epoll_create_test_calls++;
-		epoll_fd = epoll_create(fd_set_size);
-		if (epoll_fd < 0) {
-			if (errno != ENOMEM) {
-				tst_resm(TFAIL,
-					 "epoll_create with random random large set size (size = %d)",
-					 fd_set_size);
-				num_epoll_create_test_fails++;
-			} else {
-				tst_resm(TPASS,
-					 "epoll_create with random random large set size (size = %d)",
-					 fd_set_size);
-			}
-		} else {
-			tst_resm(TPASS,
-				 "epoll_create with random large set size (size = %d)",
-				 fd_set_size);
-			close(epoll_fd);
-		}
-	}
-
-	tst_resm(TINFO,
-		 "Summary: Of %d tests, epoll_create failed %d (%3.0f%% passed).",
-		 num_epoll_create_test_calls, num_epoll_create_test_fails,
-		 ((float)
-		  (num_epoll_create_test_calls - num_epoll_create_test_fails)
-		  * 100.0f / (float)
-		  num_epoll_create_test_calls));
-	/* Return 0 on success. */
-
-	return num_epoll_create_test_fails;
-}
-
-/* RES_PASS indicates a PASS result */
-#define RES_PASS 0
-
-/*
- * RES_FAIL_* indicates a FAIL result
- * In brief, there are two things that can go wrong in a
- * failure. The return value (result = epoll_ctl(...)) and
- * the errno value may not match expectations. In this notation,
- * MIS -> mismatch, MAT -> match, BAD -> bad, and IGN -> ignored.
- *
- * RETV_MIS_* indicates the return value was either 0 or 1, but did
- * not match the expected return value
- *
- * _RETV_MAT_* indicates that the return value was 0 xor 1 and did
- * match the expected value
- *
- *_RETV_BAD_* the return value was neither 0 nor 1.
- *_ERRNO_MAT  the error number matched the expected number
- *_ERRNO_MIS  the error number did not match the expected number
- *_ERRNO_IGN  no error number was expected and so errno was ignored
- *
- * Keep these values below 256 as only 1 byte gets passed as a
- * return value for the process. Note that RES_PASS is 0 which
- * LTP interprets as a PASS.
- */
-
-/* Did not get the expected return value, but errno value was expected */
-#define RES_FAIL_RETV_MIS_ERRNO_MAT 1
-/* Did not get the expected return value, but errno value was expected */
-#define RES_FAIL_RETV_BAD_ERRNO_MAT 2
-/* Did get the expected return value, and errno value was not expected */
-#define RES_FAIL_RETV_MAT_ERRNO_MIS 3
-/* Return value was neither 0 nor -1. Mismatch in value of errno */
-#define RES_FAIL_RETV_BAD_ERRNO_MIS 4
-/* Did not get the expected return value and errno is irrelevant */
-#define RES_FAIL_RETV_MIS_ERRNO_IGN 5
-/* Return value was neither 0 nor -1. value of errno is irrelevant */
-#define RES_FAIL_RETV_BAD_ERRNO_IGN 6
-/* We expected multiple errors so we were unable to check errno for conformance */
-#define RES_PASS_RETV_MAT_ERRNO_IGN 7
-
-static const char *result_strings[] = {
-	"Passed",
-	"Return value mismatched yet errno matched.",
-	"Return value was bad    yet errno matched.",
-	"Return value matched    yet errno mismatched.",
-	"Return value was bad    and errno mismatched.",
-	"Return value mismatched  so errno ignored.",
-	"Return value was bad     so errno ignored.",
-	"Return value matched    but errno ignored. (multiple errors expected)"
-};
-
-/****************************************************************************************/
-/* This macro helps keep the code below understandable. It prints out the
-   failure message passed to it plus the parameters to the system call. */
-#define EPOLL_CTL_TEST_RESULTS_SHOW_PARAMS 1
-#if EPOLL_CTL_TEST_RESULTS_SHOW_PARAMS
-#define EPOLL_CTL_TEST_FAIL(msg , ...) \
-({ \
-	if (ev_ptr != NULL) { \
-		tst_resm(TFAIL, ( "(epoll_ctl(%d,%08x,%d,%p = {%08x,%08d}) returned %d:%s)" ) , ##__VA_ARGS__ , \
-			epoll_fds[epfd_index], epoll_ctl_ops[op_index], \
-			epoll_fds[fd_index], ev_ptr, ev_ptr->events, ev_ptr->data.fd, errno, \
-			strerror(errno)); \
-	} else { \
-		tst_resm(TFAIL, ( "(epoll_ctl(%d,%08x,%d,%p) returned %d:%s)" ) , ##__VA_ARGS__  , \
-			epoll_fds[epfd_index], epoll_ctl_ops[op_index], \
-			epoll_fds[fd_index], ev_ptr, errno, strerror(errno)); \
-	} \
-})
-
-#define EPOLL_CTL_TEST_PASS(msg , ...) \
-({ \
-	if (ev_ptr != NULL) { \
-		tst_resm(TPASS, ( "(epoll_ctl(%d,%08x,%d,%p = {%08x,%08d}) returned %d:%s)" ) , ##__VA_ARGS__ , \
-			epoll_fds[epfd_index], epoll_ctl_ops[op_index], \
-			epoll_fds[fd_index], ev_ptr, ev_ptr->events, ev_ptr->data.fd, errno, \
-			strerror(errno)); \
-	} else { \
-		tst_resm(TPASS, ( "(epoll_ctl(%d,%08x,%d,%p) returned %d:%s)" ) , ##__VA_ARGS__  , \
-			epoll_fds[epfd_index], epoll_ctl_ops[op_index], \
-			epoll_fds[fd_index], ev_ptr, errno, strerror(errno)); \
-	} \
-})
-#else
-#define EPOLL_CTL_TEST_FAIL(msg , ...) tst_resm(TFAIL, msg , ##__VA_ARGS__)
-#define EPOLL_CTL_TEST_PASS(msg , ...) tst_resm(TPASS, msg , ##__VA_ARGS__)
-#endif
-
-/****************************************************************************************/
-
-int test_epoll_ctl(int epoll_fd)
-{
-	int fds[] = { -1, INT_MAX };
-	int epoll_fds[] = { 0, -1, 0, INT_MAX };
-	int epoll_events[64];
-	/* The list of operations to try AND THE ORDER THEY ARE TRIED IN */
-	int epoll_ctl_ops[] =
-	    { EPOLL_CTL_DEL, EPOLL_CTL_MOD, EPOLL_CTL_ADD, EPOLL_CTL_MOD,
-		EPOLL_CTL_DEL, EPOLL_CTL_MOD, EPOLL_CTL_DEL, INT_MAX, -1
-	};
-	struct epoll_event event;
-	char event_mem[sizeof(struct epoll_event) * 2];
-	struct epoll_event *unaligned_event_ptr;
-
-	/* Indices into lists */
-	int index = 0;		/* multi-use index. First uses are to initialize
-				   lists. Second use is to iterate over the implicit
-				   list of structs to pass in */
-	unsigned int epfd_index;	/* index into fd list for the epfd parameter */
-	unsigned int event_index;	/* index into event list for the events field of the
-					   struct epoll_event parameter */
-	unsigned int fd_index;	/* index into fd list for the fd parameter */
-	unsigned int op_index;	/* index into the list of operations for the op
-				   parameter */
-	unsigned int num_epoll_ctl_test_fails = 0;
-	unsigned int num_epoll_ctl_test_calls = 0;
-
-	/* Generate all possible combinations of events (2^6 == 64)
-	   Assume we know nothing about the EPOLL event types _except_
-	   that they describe bits in a set. */
-	for (index = 0; index < 64; index++) {
-		epoll_events[index] = ((EPOLLIN * ((index & 0x01) >> 0)) |
-				       (EPOLLOUT * ((index & 0x02) >> 1)) |
-				       (EPOLLPRI * ((index & 0x04) >> 2)) |
-				       (EPOLLERR * ((index & 0x08) >> 3)) |
-				       (EPOLLHUP * ((index & 0x10) >> 4)) |
-				       (EPOLLET * ((index & 0x20) >> 5)));
-	}
-
-	/* Get a pointer to an unaligned struct epoll_event */
-	{
-		char *unalign_ptr = event_mem;
-
-		unalign_ptr =
-		    unalign_ptr + (((unsigned long)unalign_ptr & 1) ? 0 : 1);
-		unaligned_event_ptr = (struct epoll_event *)unalign_ptr;
-	}
-
-	/* One of the fds we want to test is the valid one */
-	epoll_fds[0] = epoll_fd;
-
-	/* Test out all of the interesting combinations. This is going to
-	   take a while (in compute cycles). It took less than 1 minute to
-	   run on a PIII 500 without checking the results. */
-	for (index = 0; index < 3; index++) {
-		struct epoll_event *ev_ptr = NULL;
-
-		switch (index) {
-		case 0:	/* Pass aligned struct */
-			event.data.u64 = 0;
-			ev_ptr = &event;
-			break;
-		case 1:	/* Pass unaligned struct */
-			unaligned_event_ptr->data.u64 = 0;
-			ev_ptr = unaligned_event_ptr;
-			break;
-		case 2:
-		default:	/* Pass NULL ptr */
-			ev_ptr = NULL;
-			break;
-		}
-
-		for (epfd_index = 0;
-		     epfd_index < (sizeof(epoll_fds) / sizeof(int));
-		     epfd_index++) {
-			for (event_index = 0;
-			     event_index < (sizeof(epoll_events) / sizeof(int));
-			     event_index++) {
-				for (fd_index = 0;
-				     fd_index < (sizeof(fds) / sizeof(int));
-				     fd_index++) {
-					/* Now epoll_fd is a descriptor that references the set of
-					   file descriptors we are interested in. Next we test epoll_ctl */
-					for (op_index = 0;
-					     op_index <
-					     (sizeof(epoll_ctl_ops) /
-					      sizeof(int)); op_index++) {
-						int result;
-						int expected_errno = 0;
-						int num_errors_expected = 0;
-
-						if (ev_ptr != NULL)
-							ev_ptr->events =
-							    epoll_events
-							    [event_index];
-
-						/* Perform the call itself. Put it in a protected region which
-						   returns -1 in the variable result if a protection violation
-						   occurs (see PROTECT_REGION_END for the result) */
-						PROTECT_REGION_START errno = 0;
-
-						/* NOTE that we are assuming that epoll will operate across
-						   a fork() call such that a subsequent fork() in the parent
-						   will also manipulate the same set */
-						result =
-						    epoll_ctl(epoll_fds
-							      [epfd_index],
-							      epoll_ctl_ops
-							      [op_index],
-							      fds[fd_index],
-							      ev_ptr);
-
-						/* We can't test errno resulting from the epoll_ctl call outside of
-						   the PROTECT_REGION hence we do not have a PROTECT_REGION_END
-						   here */
-
-						/*
-						   Test the results. Look for appropriate error conditions
-						 */
-
-						/* Check the epfd */
-						if (epoll_fds[epfd_index] !=
-						    epoll_fd) {
-							/* Expect an error */
-							if (epoll_fds
-							    [epfd_index] == 0)
-								expected_errno =
-								    EINVAL;
-							else	/* epfd is not a valid file descriptor since it is
-								   neither epoll_fd nor stdin */
-								expected_errno =
-								    EBADF;
-							num_errors_expected++;
-						}
-
-						switch (epoll_ctl_ops[op_index]) {
-						case EPOLL_CTL_ADD:
-						case EPOLL_CTL_MOD:
-						case EPOLL_CTL_DEL:
-							break;
-						default:	/* Expect an error */
-							expected_errno = EINVAL;
-							num_errors_expected++;
-							break;
-						}
-
-						expected_errno = EPERM;
-						num_errors_expected++;
-
-						if (ev_ptr == NULL) {
-							expected_errno = EINVAL;
-							num_errors_expected++;
-						} else if ((ev_ptr == &event)
-							   || (ev_ptr ==
-							       unaligned_event_ptr))
-						{
-							if (ev_ptr->events == 0) {
-								expected_errno =
-								    EINVAL;
-								num_errors_expected++;
-							}
-
-							for (index = 1;
-							     index < 64;
-							     index++) {
-								if ((int)ev_ptr->events != epoll_events[index]) {
-									expected_errno
-									    =
-									    EINVAL;
-									num_errors_expected++;
-								}
-							}
-						} else {
-							/* Do not expect an error */
-						}
-
-						if (num_errors_expected == 0) {
-							/* We did not expect an error */
-							if (result == 0) {
-								/* We didn't get an error. Think of this as RES_PASS_RETV_MAT_ERRNO_IGN */
-								return RES_PASS;
-							} else if (result == -1) {	/* The return value is -1, so it's not bad */
-								return
-								    RES_FAIL_RETV_MIS_ERRNO_IGN;
-							} else {
-								return
-								    RES_FAIL_RETV_BAD_ERRNO_IGN;
-							}
-						} else if (num_errors_expected
-							   == 1) {
-							/* We expected an error */
-							if (result == 0) {
-								return RES_FAIL_RETV_MIS_ERRNO_IGN;	/* Unexpected success */
-							} else if (result == -1) {
-								/* We got an error. Check errno */
-								if (errno ==
-								    expected_errno)
-								{
-									return RES_PASS;	/* think of this as RETV_MAT_ERRNO_MAT */
-								} else {
-									return
-									    RES_FAIL_RETV_MAT_ERRNO_MIS;
-								}
-							} else {
-								/* We got a bad return code! Interpret this as
-								   getting an error and check errno. */
-								if (errno ==
-								    expected_errno)
-									return
-									    RES_FAIL_RETV_BAD_ERRNO_MAT;
-								else
-									return
-									    RES_FAIL_RETV_BAD_ERRNO_MIS;
-							}
-						} else if (num_errors_expected >
-							   1) {
-							/* We expected multiple errors */
-							if (result == 0) {
-								return RES_FAIL_RETV_MIS_ERRNO_IGN;	/* Unexpected success */
-							} else if (result == -1) {
-								/* We got an error. Check errno */
-								if (errno ==
-								    expected_errno)
-								{
-									return RES_PASS;	/* think of this as RETV_MAT_ERRNO_MAT */
-								} else {
-									/* Ignore errno because the desired value is unknowable
-									   without looking at the structure of the code. */
-									return
-									    RES_PASS_RETV_MAT_ERRNO_IGN;
-								}
-							} else {
-								/* We got a bad return code! Interpret this as
-								   getting an error and check errno. */
-								if (errno ==
-								    expected_errno)
-									/* Don't Ignore errno because the desired value
-									   happened to match what we expected. */
-									return
-									    RES_FAIL_RETV_BAD_ERRNO_MAT;
-								else
-									/* Ignore errno because the desired value is unknowable
-									   without looking at the structure of the code. */
-									return
-									    RES_FAIL_RETV_BAD_ERRNO_IGN;
-							}
-						}
-
-						/* All "return"s between PROTECT_REGION_BEGIN
-						   and PROTECT_REGION_END place their value in
-						   the result parameter. If the region caused
-						   a protection violation (segfault or otherwise)
-						   then the result is set to the second parameter's
-						   value (-1 in this case). */
-						PROTECT_REGION_END(result, -1);
-
-						/* Count the number of tests run */
-						num_epoll_ctl_test_calls++;
-
-						/* Now test the result */
-						if (!((result == RES_PASS)
-						      || (result ==
-							  RES_PASS_RETV_MAT_ERRNO_IGN)))
-						{
-							if (result >
-							   (int)(sizeof(result_strings) /
-							     sizeof(const char
-								    *))) {
-								/* Returned a result which has no corresponding text description */
-								EPOLL_CTL_TEST_FAIL
-								    ("FIXME FIX ME BUG in Test Program itself!");
-							} else {
-								if (result == -1)	/* Segfault during epoll_ctl call */
-									EPOLL_CTL_TEST_FAIL
-									    ("Test arguments caused abnormal exit.");
-								else	/* The 'normal' failure */
-									EPOLL_CTL_TEST_FAIL
-									    ((result_strings[result]));
-							}
-							num_epoll_ctl_test_fails++;
-#ifdef DEBUG
-						} else	/* The call of epoll_ctl behaved as expected */
-							EPOLL_CTL_TEST_PASS((result_strings[result]));
-#else
-						}
-#endif
-					}
-				}
-			}
-		}
-		close(epoll_fd);
-	}
-
-	tst_resm(TINFO,
-		 "Summary: Of %d tests, epoll_ctl failed %d (%3.0f%% passed).",
-		 num_epoll_ctl_test_calls, num_epoll_ctl_test_fails,
-		 ((float)(num_epoll_ctl_test_calls - num_epoll_ctl_test_fails) *
-		  100.0f / (float)num_epoll_ctl_test_calls));
-	return (num_epoll_ctl_test_fails / num_epoll_ctl_test_calls);
-}
-
-int main(void)
-{
-	int epoll_fd;
-	struct timeval tv;
-	int last_result;
-
-	tst_resm(TINFO, "testing if epoll() system call works");
-
-	/* Get the current time */
-	if (gettimeofday(&tv, NULL) != 0) {
-		tst_brkm(TBROK | TERRNO, NULL, "gettimeofday failed");
-	} else {
-		tst_resm(TINFO, "gettimeofday() works");
-	}
-
-	/* Set up RNG */
-	srand(tv.tv_usec);
-	tst_resm(TINFO,
-		 "random number seeded with gettimeofday() [seed = %ld] works",
-		 tv.tv_usec);
-
-	tst_resm(TINFO, "Testing epoll_create");
-	/* Testing epoll_create with some different sizes */
-	last_result = PROTECT_FUNC(test_epoll_create, -1, NUM_RAND_ATTEMPTS);
-	if (last_result != 0) {
-		/* create test(s) failed */
-	}
-
-	/* Create an epoll_fd for testing epoll_ctl */
-	epoll_fd = epoll_create(BACKING_STORE_SIZE_HINT);
-	if (epoll_fd < 0) {
-		tst_brkm(TFAIL | TERRNO, NULL, "epoll_create failed");
-	}
-
-	tst_resm(TINFO, "Testing epoll_ctl");
-	last_result = PROTECT_FUNC(test_epoll_ctl, -1, epoll_fd);
-	if (last_result != 0) {
-		/* ctl test(s) failed */
-	}
-
-	tst_exit();
-}
-
-#else
-
-int main(void)
-{
-	tst_brkm(TCONF, NULL, "No epoll support found.");
-}
-
-#endif
-- 
2.52.0


-- 
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