Date: Fri, 28 Jul 2023 09:10:48 GMT From: Dmitry Chagin <dchagin@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: df1ea5887326 - main - tests: Test libexecinfo backtrace call througth signal trampoline Message-ID: <202307280910.36S9Am5C073018@gitrepo.freebsd.org>
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The branch main has been updated by dchagin: URL: https://cgit.FreeBSD.org/src/commit/?id=df1ea5887326103f0cc1445ab42fce528b474030 commit df1ea5887326103f0cc1445ab42fce528b474030 Author: Dmitry Chagin <dchagin@FreeBSD.org> AuthorDate: 2023-07-28 09:10:27 +0000 Commit: Dmitry Chagin <dchagin@FreeBSD.org> CommitDate: 2023-07-28 09:10:27 +0000 tests: Test libexecinfo backtrace call througth signal trampoline It should fails on Aarch64 until https://reviews.llvm.org/D155066 is not merged. Reviewed by: Differential Revision: https://reviews.freebsd.org/D41129 --- lib/libexecinfo/tests/Makefile | 3 ++ lib/libexecinfo/tests/sigtramp_test.c | 75 +++++++++++++++++++++++++++++++++++ 2 files changed, 78 insertions(+) diff --git a/lib/libexecinfo/tests/Makefile b/lib/libexecinfo/tests/Makefile index da34964c5005..7b90029fe354 100644 --- a/lib/libexecinfo/tests/Makefile +++ b/lib/libexecinfo/tests/Makefile @@ -14,7 +14,10 @@ STRIP= # so that doesn't seem useful. NETBSD_ATF_TESTS_C+= backtrace_test +ATF_TESTS_C+= sigtramp_test + LIBADD.backtrace_test+= execinfo +LIBADD.sigtramp_test+= execinfo .include <netbsd-tests.test.mk> diff --git a/lib/libexecinfo/tests/sigtramp_test.c b/lib/libexecinfo/tests/sigtramp_test.c new file mode 100644 index 000000000000..cd3b3cc418de --- /dev/null +++ b/lib/libexecinfo/tests/sigtramp_test.c @@ -0,0 +1,75 @@ +/*- + * Copyright (c) 2023 Dmitry Chagin <dchagin@FreeBSD.org> + * + * SPDX-License-Identifier: BSD-2-Clause + */ +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> +#include <sys/wait.h> + +#include <execinfo.h> +#include <signal.h> +#include <stdio.h> +#include <string.h> +#include <unistd.h> + +#include <atf-c.h> + +#define BT_FUNCTIONS 10 + +void handler(int); + +__noinline void +handler(int signum __unused) +{ + void *addresses[BT_FUNCTIONS]; + char **symbols; + size_t n, i, match; + + n = backtrace(addresses, nitems(addresses)); + ATF_REQUIRE(n > 1); + symbols = backtrace_symbols(addresses, n); + ATF_REQUIRE(symbols != NULL); + + match = -1; + for (i = 0; i < n; i++) { + printf("%zu: %p, %s\n", i, addresses[i], symbols[i]); + if (strstr(symbols[i], "<main+") != NULL) + match = i; + } + ATF_REQUIRE(match > 0); + printf("match at %zu, symbols %zu\n", match, n); + +} + +ATF_TC_WITHOUT_HEAD(test_backtrace_sigtramp); +ATF_TC_BODY(test_backtrace_sigtramp, tc) +{ + struct sigaction act; + pid_t child; + int status; + + memset(&act, 0, sizeof(act)); + act.sa_handler = handler; + sigemptyset(&act.sa_mask); + sigaction(SIGUSR1, &act, NULL); + + child = fork(); + ATF_REQUIRE(child != -1); + + if (child == 0) { + kill(getppid(), SIGUSR1); + _exit(0); + } else + wait(&status); +} + +ATF_TP_ADD_TCS(tp) +{ + + ATF_TP_ADD_TC(tp, test_backtrace_sigtramp); + + return (atf_no_error()); +}
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