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selftests/mm: map_fixed_noreplace: conform test to TAP format output

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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: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Muhammad Usama Anjum 2024-02-02 16:31:08 +05:00 committed by Andrew Morton
parent eb1521dad8
commit 4838cf70e5
1 changed files with 31 additions and 65 deletions
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96
tools/testing/selftests/mm/map_fixed_noreplace.c
View file

@ -12,6 +12,7 @@
#include <stdio.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
#include <unistd.h> #include <unistd.h>
#include "../kselftest.h"
static void dump_maps(void) static void dump_maps(void)
{ {
@ -28,15 +29,12 @@ static unsigned long find_base_addr(unsigned long size)
flags = MAP_PRIVATE | MAP_ANONYMOUS; flags = MAP_PRIVATE | MAP_ANONYMOUS;
addr = mmap(NULL, size, PROT_NONE, flags, -1, 0); addr = mmap(NULL, size, PROT_NONE, flags, -1, 0);
if (addr == MAP_FAILED) { if (addr == MAP_FAILED)
printf("Error: couldn't map the space we need for the test\n"); ksft_exit_fail_msg("Error: couldn't map the space we need for the test\n");
return 0;
} 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; return (unsigned long)addr;
} }
@ -46,51 +44,39 @@ int main(void)
unsigned long flags, addr, size, page_size; unsigned long flags, addr, size, page_size;
char *p; char *p;
ksft_print_header();
ksft_set_plan(9);
page_size = sysconf(_SC_PAGE_SIZE); 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; size = 5 * page_size;
base_addr = find_base_addr(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; flags = MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED_NOREPLACE;
// Check we can map all the areas we need below /* Check we can map all the areas we need below */
errno = 0;
addr = base_addr; addr = base_addr;
size = 5 * page_size; size = 5 * page_size;
p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0); 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) { if (p == MAP_FAILED) {
dump_maps(); dump_maps();
printf("Error: couldn't map the space we need for the test\n"); ksft_exit_fail_msg("Error: couldn't map the space we need for the test\n");
return 1;
} }
errno = 0;
if (munmap((void *)addr, 5 * page_size) != 0) { if (munmap((void *)addr, 5 * page_size) != 0) {
dump_maps(); dump_maps();
printf("Error: munmap failed!?\n"); ksft_exit_fail_msg("Error: munmap failed!?\n");
return 1;
} }
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; addr = base_addr + page_size;
size = 3 * page_size; size = 3 * page_size;
p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0); 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) { if (p == MAP_FAILED) {
dump_maps(); dump_maps();
printf("Error: first mmap() failed unexpectedly\n"); ksft_exit_fail_msg("Error: first mmap() failed unexpectedly\n");
return 1;
} }
ksft_test_result_pass("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p);
/* /*
* Exact same mapping again: * Exact same mapping again:
@ -100,17 +86,14 @@ int main(void)
* +3 | mapped | new * +3 | mapped | new
* +4 | free | new * +4 | free | new
*/ */
errno = 0;
addr = base_addr; addr = base_addr;
size = 5 * page_size; size = 5 * page_size;
p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0); 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) { if (p != MAP_FAILED) {
dump_maps(); dump_maps();
printf("Error:1: mmap() succeeded when it shouldn't have\n"); ksft_exit_fail_msg("Error:1: mmap() succeeded when it shouldn't have\n");
return 1;
} }
ksft_test_result_pass("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p);
/* /*
* Second mapping contained within first: * Second mapping contained within first:
@ -121,17 +104,14 @@ int main(void)
* +3 | mapped | * +3 | mapped |
* +4 | free | * +4 | free |
*/ */
errno = 0;
addr = base_addr + (2 * page_size); addr = base_addr + (2 * page_size);
size = page_size; size = page_size;
p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0); 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) { if (p != MAP_FAILED) {
dump_maps(); dump_maps();
printf("Error:2: mmap() succeeded when it shouldn't have\n"); ksft_exit_fail_msg("Error:2: mmap() succeeded when it shouldn't have\n");
return 1;
} }
ksft_test_result_pass("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p);
/* /*
* Overlap end of existing mapping: * Overlap end of existing mapping:
@ -141,17 +121,14 @@ int main(void)
* +3 | mapped | new * +3 | mapped | new
* +4 | free | new * +4 | free | new
*/ */
errno = 0;
addr = base_addr + (3 * page_size); addr = base_addr + (3 * page_size);
size = 2 * page_size; size = 2 * page_size;
p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0); 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) { if (p != MAP_FAILED) {
dump_maps(); dump_maps();
printf("Error:3: mmap() succeeded when it shouldn't have\n"); ksft_exit_fail_msg("Error:3: mmap() succeeded when it shouldn't have\n");
return 1;
} }
ksft_test_result_pass("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p);
/* /*
* Overlap start of existing mapping: * Overlap start of existing mapping:
@ -161,17 +138,14 @@ int main(void)
* +3 | mapped | * +3 | mapped |
* +4 | free | * +4 | free |
*/ */
errno = 0;
addr = base_addr; addr = base_addr;
size = 2 * page_size; size = 2 * page_size;
p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0); 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) { if (p != MAP_FAILED) {
dump_maps(); dump_maps();
printf("Error:4: mmap() succeeded when it shouldn't have\n"); ksft_exit_fail_msg("Error:4: mmap() succeeded when it shouldn't have\n");
return 1;
} }
ksft_test_result_pass("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p);
/* /*
* Adjacent to start of existing mapping: * Adjacent to start of existing mapping:
@ -181,17 +155,14 @@ int main(void)
* +3 | mapped | * +3 | mapped |
* +4 | free | * +4 | free |
*/ */
errno = 0;
addr = base_addr; addr = base_addr;
size = page_size; size = page_size;
p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0); 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) { if (p == MAP_FAILED) {
dump_maps(); dump_maps();
printf("Error:5: mmap() failed when it shouldn't have\n"); ksft_exit_fail_msg("Error:5: mmap() failed when it shouldn't have\n");
return 1;
} }
ksft_test_result_pass("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p);
/* /*
* Adjacent to end of existing mapping: * Adjacent to end of existing mapping:
@ -201,27 +172,22 @@ int main(void)
* +3 | mapped | * +3 | mapped |
* +4 | free | new * +4 | free | new
*/ */
errno = 0;
addr = base_addr + (4 * page_size); addr = base_addr + (4 * page_size);
size = page_size; size = page_size;
p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0); 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) { if (p == MAP_FAILED) {
dump_maps(); dump_maps();
printf("Error:6: mmap() failed when it shouldn't have\n"); ksft_exit_fail_msg("Error:6: mmap() failed when it shouldn't have\n");
return 1;
} }
ksft_test_result_pass("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p);
addr = base_addr; addr = base_addr;
size = 5 * page_size; size = 5 * page_size;
if (munmap((void *)addr, size) != 0) { if (munmap((void *)addr, size) != 0) {
dump_maps(); dump_maps();
printf("Error: munmap failed!?\n"); ksft_exit_fail_msg("Error: munmap failed!?\n");
return 1;
} }
printf("unmap() successful\n"); ksft_test_result_pass("Base Address unmap() successful\n");
printf("OK\n"); ksft_finished();
return 0;
} }