Commit 4838cf70 authored by Muhammad Usama Anjum's avatar Muhammad Usama Anjum Committed by Andrew Morton
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selftests/mm: map_fixed_noreplace: conform test to TAP format output 

Patch series "conform tests to TAP format output", v2.


This patch (of 12):

Conform the layout, informational and status messages to TAP.  No
functional change is intended other than the layout of output messages. 
While at it, convert commenting style from // to /**/.

Link: https://lkml.kernel.org/r/20240202113119.2047740-1-usama.anjum@collabora.com
Link: https://lkml.kernel.org/r/20240202113119.2047740-2-usama.anjum@collabora.com


Signed-off-by: default avatarMuhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
parent eb1521da

tools/testing/selftests/mm/map_fixed_noreplace.c

+31 −65
Original line number Diff line number Diff line
@@ -12,6 +12,7 @@ 
#include <stdio.h>

#include <stdlib.h>

#include <unistd.h>

#include "../kselftest.h"



static void dump_maps(void)

{
@@ -28,15 +29,12 @@ static unsigned long find_base_addr(unsigned long size) 


	flags = MAP_PRIVATE | MAP_ANONYMOUS;

	addr = mmap(NULL, size, PROT_NONE, flags, -1, 0);

	if (addr == MAP_FAILED) {

		printf("Error: couldn't map the space we need for the test\n");

		return 0;

	}

	if (addr == MAP_FAILED)

		ksft_exit_fail_msg("Error: couldn't map the space we need for the test\n");



	if (munmap(addr, size) != 0)

		ksft_exit_fail_msg("Error: munmap failed\n");



	if (munmap(addr, size) != 0) {

		printf("Error: couldn't map the space we need for the test\n");

		return 0;

	}

	return (unsigned long)addr;

}
@@ -46,51 +44,39 @@ int main(void) 
	unsigned long flags, addr, size, page_size;

	char *p;



	ksft_print_header();

	ksft_set_plan(9);



	page_size = sysconf(_SC_PAGE_SIZE);



	//let's find a base addr that is free before we start the tests

	/* let's find a base addr that is free before we start the tests */

	size = 5 * page_size;

	base_addr = find_base_addr(size);

	if (!base_addr) {

		printf("Error: couldn't map the space we need for the test\n");

		return 1;

	}



	flags = MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED_NOREPLACE;



	// Check we can map all the areas we need below

	errno = 0;

	/* Check we can map all the areas we need below */

	addr = base_addr;

	size = 5 * page_size;

	p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0);



	printf("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p);



	if (p == MAP_FAILED) {

		dump_maps();

		printf("Error: couldn't map the space we need for the test\n");

		return 1;

		ksft_exit_fail_msg("Error: couldn't map the space we need for the test\n");

	}



	errno = 0;

	if (munmap((void *)addr, 5 * page_size) != 0) {

		dump_maps();

		printf("Error: munmap failed!?\n");

		return 1;

		ksft_exit_fail_msg("Error: munmap failed!?\n");

	}

	printf("unmap() successful\n");

	ksft_test_result_pass("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p);



	errno = 0;

	addr = base_addr + page_size;

	size = 3 * page_size;

	p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0);

	printf("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p);



	if (p == MAP_FAILED) {

		dump_maps();

		printf("Error: first mmap() failed unexpectedly\n");

		return 1;

		ksft_exit_fail_msg("Error: first mmap() failed unexpectedly\n");

	}

	ksft_test_result_pass("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p);



	/*

	 * Exact same mapping again:
@@ -100,17 +86,14 @@ int main(void) 
	 *     +3 | mapped | new

	 *     +4 |  free  | new

	 */

	errno = 0;

	addr = base_addr;

	size = 5 * page_size;

	p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0);

	printf("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p);



	if (p != MAP_FAILED) {

		dump_maps();

		printf("Error:1: mmap() succeeded when it shouldn't have\n");

		return 1;

		ksft_exit_fail_msg("Error:1: mmap() succeeded when it shouldn't have\n");

	}

	ksft_test_result_pass("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p);



	/*

	 * Second mapping contained within first:
@@ -121,17 +104,14 @@ int main(void) 
	 *     +3 | mapped |

	 *     +4 |  free  |

	 */

	errno = 0;

	addr = base_addr + (2 * page_size);

	size = page_size;

	p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0);

	printf("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p);



	if (p != MAP_FAILED) {

		dump_maps();

		printf("Error:2: mmap() succeeded when it shouldn't have\n");

		return 1;

		ksft_exit_fail_msg("Error:2: mmap() succeeded when it shouldn't have\n");

	}

	ksft_test_result_pass("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p);



	/*

	 * Overlap end of existing mapping:
@@ -141,17 +121,14 @@ int main(void) 
	 *     +3 | mapped | new

	 *     +4 |  free  | new

	 */

	errno = 0;

	addr = base_addr + (3 * page_size);

	size = 2 * page_size;

	p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0);

	printf("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p);



	if (p != MAP_FAILED) {

		dump_maps();

		printf("Error:3: mmap() succeeded when it shouldn't have\n");

		return 1;

		ksft_exit_fail_msg("Error:3: mmap() succeeded when it shouldn't have\n");

	}

	ksft_test_result_pass("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p);



	/*

	 * Overlap start of existing mapping:
@@ -161,17 +138,14 @@ int main(void) 
	 *     +3 | mapped |

	 *     +4 |  free  |

	 */

	errno = 0;

	addr = base_addr;

	size = 2 * page_size;

	p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0);

	printf("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p);



	if (p != MAP_FAILED) {

		dump_maps();

		printf("Error:4: mmap() succeeded when it shouldn't have\n");

		return 1;

		ksft_exit_fail_msg("Error:4: mmap() succeeded when it shouldn't have\n");

	}

	ksft_test_result_pass("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p);



	/*

	 * Adjacent to start of existing mapping:
@@ -181,17 +155,14 @@ int main(void) 
	 *     +3 | mapped |

	 *     +4 |  free  |

	 */

	errno = 0;

	addr = base_addr;

	size = page_size;

	p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0);

	printf("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p);



	if (p == MAP_FAILED) {

		dump_maps();

		printf("Error:5: mmap() failed when it shouldn't have\n");

		return 1;

		ksft_exit_fail_msg("Error:5: mmap() failed when it shouldn't have\n");

	}

	ksft_test_result_pass("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p);



	/*

	 * Adjacent to end of existing mapping:
@@ -201,27 +172,22 @@ int main(void) 
	 *     +3 | mapped |

	 *     +4 |  free  |  new

	 */

	errno = 0;

	addr = base_addr + (4 * page_size);

	size = page_size;

	p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0);

	printf("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p);



	if (p == MAP_FAILED) {

		dump_maps();

		printf("Error:6: mmap() failed when it shouldn't have\n");

		return 1;

		ksft_exit_fail_msg("Error:6: mmap() failed when it shouldn't have\n");

	}

	ksft_test_result_pass("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p);



	addr = base_addr;

	size = 5 * page_size;

	if (munmap((void *)addr, size) != 0) {

		dump_maps();

		printf("Error: munmap failed!?\n");

		return 1;

		ksft_exit_fail_msg("Error: munmap failed!?\n");

	}

	printf("unmap() successful\n");

	ksft_test_result_pass("Base Address unmap() successful\n");



	printf("OK\n");

	return 0;

	ksft_finished();

}