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e6fbd1759c
This follow-up patch completes centralization of kselftest.h and ksefltest_harness.h includes in remaining seltests files, replacing all relative paths with a non-relative paths using shared -I include path in lib.mk Tested with gcc-13.3 and clang-18.1, and cross-compiled successfully on riscv, arm64, x86_64 and powerpc arch. [reddybalavignesh9979@gmail.com: add selftests include path for kselftest.h] Link: https://lkml.kernel.org/r/20251017090201.317521-1-reddybalavignesh9979@gmail.com Link: https://lkml.kernel.org/r/20251016104409.68985-1-reddybalavignesh9979@gmail.com Signed-off-by: Bala-Vignesh-Reddy <reddybalavignesh9979@gmail.com> Suggested-by: Andrew Morton <akpm@linux-foundation.org> Link: https://lore.kernel.org/lkml/20250820143954.33d95635e504e94df01930d0@linux-foundation.org/ Reviewed-by: Wei Yang <richard.weiyang@gmail.com> Cc: David Hildenbrand <david@redhat.com> Cc: David S. Miller <davem@davemloft.net> Cc: Eric Dumazet <edumazet@google.com> Cc: Günther Noack <gnoack@google.com> Cc: Jakub Kacinski <kuba@kernel.org> Cc: Liam Howlett <liam.howlett@oracle.com> Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Cc: Michal Hocko <mhocko@suse.com> Cc: Mickael Salaun <mic@digikod.net> Cc: Ming Lei <ming.lei@redhat.com> Cc: Paolo Abeni <pabeni@redhat.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Simon Horman <horms@kernel.org> Cc: Suren Baghdasaryan <surenb@google.com> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
95 lines
1.6 KiB
C
95 lines
1.6 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* This test covers the PR_SET_NAME functionality of prctl calls
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*/
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#include <errno.h>
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#include <sys/prctl.h>
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#include <string.h>
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#include "kselftest_harness.h"
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#define CHANGE_NAME "changename"
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#define EMPTY_NAME ""
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#define TASK_COMM_LEN 16
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#define MAX_PATH_LEN 50
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int set_name(char *name)
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{
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int res;
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res = prctl(PR_SET_NAME, name, NULL, NULL, NULL);
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if (res < 0)
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return -errno;
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return res;
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}
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int check_is_name_correct(char *check_name)
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{
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char name[TASK_COMM_LEN];
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int res;
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res = prctl(PR_GET_NAME, name, NULL, NULL, NULL);
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if (res < 0)
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return -errno;
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return !strcmp(name, check_name);
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}
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int check_null_pointer(char *check_name)
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{
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char *name = NULL;
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int res;
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res = prctl(PR_GET_NAME, name, NULL, NULL, NULL);
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return res;
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}
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int check_name(void)
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{
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int pid;
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pid = getpid();
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FILE *fptr = NULL;
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char path[MAX_PATH_LEN] = {};
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char name[TASK_COMM_LEN] = {};
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char output[TASK_COMM_LEN] = {};
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int j;
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j = snprintf(path, MAX_PATH_LEN, "/proc/self/task/%d/comm", pid);
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fptr = fopen(path, "r");
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if (!fptr)
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return -EIO;
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fscanf(fptr, "%s", output);
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if (ferror(fptr))
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return -EIO;
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int res = prctl(PR_GET_NAME, name, NULL, NULL, NULL);
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if (res < 0)
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return -errno;
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return !strcmp(output, name);
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}
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TEST(rename_process) {
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EXPECT_GE(set_name(CHANGE_NAME), 0);
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EXPECT_TRUE(check_is_name_correct(CHANGE_NAME));
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EXPECT_GE(set_name(EMPTY_NAME), 0);
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EXPECT_TRUE(check_is_name_correct(EMPTY_NAME));
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EXPECT_GE(set_name(CHANGE_NAME), 0);
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EXPECT_LT(check_null_pointer(CHANGE_NAME), 0);
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EXPECT_TRUE(check_name());
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}
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TEST_HARNESS_MAIN
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