diff options
| -rw-r--r-- | tools/perf/tests/Build | 1 | ||||
| -rw-r--r-- | tools/perf/tests/builtin-test.c | 4 | ||||
| -rw-r--r-- | tools/perf/tests/genelf.c | 51 | ||||
| -rw-r--r-- | tools/perf/tests/tests.h | 1 | ||||
| -rw-r--r-- | tools/perf/util/genelf.c | 46 |
5 files changed, 57 insertions, 46 deletions
diff --git a/tools/perf/tests/Build b/tools/perf/tests/Build index a3c595fba943..1692529639b0 100644 --- a/tools/perf/tests/Build +++ b/tools/perf/tests/Build @@ -54,6 +54,7 @@ perf-y += unit_number__scnprintf.o perf-y += mem2node.o perf-y += maps.o perf-y += time-utils-test.o +perf-y += genelf.o $(OUTPUT)tests/llvm-src-base.c: tests/bpf-script-example.c tests/Build $(call rule_mkdir) diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c index 82d19a8fcac7..5f05db75cdd8 100644 --- a/tools/perf/tests/builtin-test.c +++ b/tools/perf/tests/builtin-test.c @@ -302,6 +302,10 @@ static struct test generic_tests[] = { .func = test__time_utils, }, { + .desc = "Test jit_write_elf", + .func = test__jit_write_elf, + }, + { .desc = "maps__merge_in", .func = test__maps__merge_in, }, diff --git a/tools/perf/tests/genelf.c b/tools/perf/tests/genelf.c new file mode 100644 index 000000000000..f797f9823e89 --- /dev/null +++ b/tools/perf/tests/genelf.c @@ -0,0 +1,51 @@ +// SPDX-License-Identifier: GPL-2.0-only +#include <limits.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <linux/compiler.h> + +#include "debug.h" +#include "tests.h" + +#ifdef HAVE_JITDUMP +#include <libelf.h> +#include "../util/genelf.h" +#endif + +#define TEMPL "/tmp/perf-test-XXXXXX" + +int test__jit_write_elf(struct test *test __maybe_unused, + int subtest __maybe_unused) +{ +#ifdef HAVE_JITDUMP + static unsigned char x86_code[] = { + 0xBB, 0x2A, 0x00, 0x00, 0x00, /* movl $42, %ebx */ + 0xB8, 0x01, 0x00, 0x00, 0x00, /* movl $1, %eax */ + 0xCD, 0x80 /* int $0x80 */ + }; + char path[PATH_MAX]; + int fd, ret; + + strcpy(path, TEMPL); + + fd = mkstemp(path); + if (fd < 0) { + perror("mkstemp failed"); + return TEST_FAIL; + } + + pr_info("Writing jit code to: %s\n", path); + + ret = jit_write_elf(fd, 0, "main", x86_code, sizeof(x86_code), + NULL, 0, NULL, 0, 0); + close(fd); + + unlink(path); + + return ret ? TEST_FAIL : 0; +#else + return TEST_SKIP; +#endif +} diff --git a/tools/perf/tests/tests.h b/tools/perf/tests/tests.h index 4f9ae6af78ec..9a160fef47c9 100644 --- a/tools/perf/tests/tests.h +++ b/tools/perf/tests/tests.h @@ -110,6 +110,7 @@ int test__unit_number__scnprint(struct test *test, int subtest); int test__mem2node(struct test *t, int subtest); int test__maps__merge_in(struct test *t, int subtest); int test__time_utils(struct test *t, int subtest); +int test__jit_write_elf(struct test *test, int subtest); bool test__bp_signal_is_supported(void); bool test__bp_account_is_supported(void); diff --git a/tools/perf/util/genelf.c b/tools/perf/util/genelf.c index f9f18b8b1df9..aed49806a09b 100644 --- a/tools/perf/util/genelf.c +++ b/tools/perf/util/genelf.c @@ -8,15 +8,12 @@ */ #include <sys/types.h> -#include <stdio.h> -#include <getopt.h> #include <stddef.h> #include <libelf.h> #include <string.h> #include <stdlib.h> #include <unistd.h> #include <inttypes.h> -#include <limits.h> #include <fcntl.h> #include <err.h> #ifdef HAVE_DWARF_SUPPORT @@ -31,8 +28,6 @@ #define NT_GNU_BUILD_ID 3 #endif -#define JVMTI - #define BUILD_ID_URANDOM /* different uuid for each run */ #ifdef HAVE_LIBCRYPTO @@ -511,44 +506,3 @@ error: return retval; } - -#ifndef JVMTI - -static unsigned char x86_code[] = { - 0xBB, 0x2A, 0x00, 0x00, 0x00, /* movl $42, %ebx */ - 0xB8, 0x01, 0x00, 0x00, 0x00, /* movl $1, %eax */ - 0xCD, 0x80 /* int $0x80 */ -}; - -static struct options options; - -int main(int argc, char **argv) -{ - int c, fd, ret; - - while ((c = getopt(argc, argv, "o:h")) != -1) { - switch (c) { - case 'o': - options.output = optarg; - break; - case 'h': - printf("Usage: genelf -o output_file [-h]\n"); - return 0; - default: - errx(1, "unknown option"); - } - } - - fd = open(options.output, O_CREAT|O_TRUNC|O_RDWR, 0666); - if (fd == -1) - err(1, "cannot create file %s", options.output); - - ret = jit_write_elf(fd, "main", x86_code, sizeof(x86_code)); - close(fd); - - if (ret != 0) - unlink(options.output); - - return ret; -} -#endif |