selftests/harness: remove use of LINE_MAX
Android was seeing a compliation error because its C library does not define LINE_MAX. This replaces the use of LINE_MAX / snprintf with asprintf, which will change the behavior to not truncate the test name if it is over 2048 chars long. See also: https://github.com/llvm/llvm-project/issues/88119 [akpm@linux-foundation.org: remove limits.h include, per Edward] [akpm@linux-foundation.org: check asprintf() return] [usama.anjum@collabora.com: fix undeclared function error] Link: https://lkml.kernel.org/r/20240417075530.3807625-1-usama.anjum@collabora.com Link: https://lkml.kernel.org/r/20240411231954.62156-1-edliaw@google.com Fixes: 38c957f07038 ("selftests: kselftest_harness: generate test name once") Signed-off-by: Edward Liaw <edliaw@google.com> Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Axel Rasmussen <axelrasmussen@google.com> Cc: Bill Wendling <morbo@google.com> Cc: David Hildenbrand <david@redhat.com> Cc: Edward Liaw <edliaw@google.com> Cc: Justin Stitt <justinstitt@google.com> Cc: Kees Cook <keescook@chromium.org> Cc: "Mike Rapoport (IBM)" <rppt@kernel.org> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nick Desaulniers <ndesaulniers@google.com> Cc: Peter Xu <peterx@redhat.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Will Drewry <wad@chromium.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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@ -56,7 +56,6 @@
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#include <asm/types.h>
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#include <ctype.h>
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#include <errno.h>
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#include <limits.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include <stdio.h>
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@ -1156,7 +1155,7 @@ void __run_test(struct __fixture_metadata *f,
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struct __test_metadata *t)
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{
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struct __test_xfail *xfail;
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char test_name[LINE_MAX];
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char *test_name;
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const char *diagnostic;
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/* reset test struct */
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@ -1164,8 +1163,12 @@ void __run_test(struct __fixture_metadata *f,
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t->trigger = 0;
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memset(t->results->reason, 0, sizeof(t->results->reason));
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snprintf(test_name, sizeof(test_name), "%s%s%s.%s",
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f->name, variant->name[0] ? "." : "", variant->name, t->name);
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if (asprintf(&test_name, "%s%s%s.%s", f->name,
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variant->name[0] ? "." : "", variant->name, t->name) == -1) {
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ksft_print_msg("ERROR ALLOCATING MEMORY\n");
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t->exit_code = KSFT_FAIL;
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_exit(t->exit_code);
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}
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ksft_print_msg(" RUN %s ...\n", test_name);
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@ -1203,6 +1206,7 @@ void __run_test(struct __fixture_metadata *f,
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ksft_test_result_code(t->exit_code, test_name,
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diagnostic ? "%s" : "", diagnostic);
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free(test_name);
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}
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static int test_harness_run(int argc, char **argv)
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@ -7,6 +7,7 @@
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#include <linux/mman.h>
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#include <linux/prctl.h>
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#define _GNU_SOURCE
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/auxv.h>
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