From: Francis Deslauriers Date: Mon, 4 May 2020 19:59:22 +0000 (-0400) Subject: Fix: tests: `-Wstringop-overflow` warning X-Git-Tag: v2.11.4~2 X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=90667ac0b737be510fa63535a64f66f96e85e2fa;p=lttng-tools.git Fix: tests: `-Wstringop-overflow` warning I get the following warning when compiling with `-Wall -Werror` with gcc 9.3.0: In file included from ../../src/common/macros.h:15, from ../../src/common/lttng-kernel.h:14, from ../../src/bin/lttng-sessiond/trace-kernel.h:14, from test_kernel_data.c:16: In function ‘lttng_strnlen’, inlined from ‘lttng_strncpy’ at ../../src/common/macros.h:120:6, inlined from ‘test_create_kernel_event’ at test_kernel_data.c:136:2: ../../src/common/compat/string.h:28:8: error: ‘memchr’ reading 256 bytes from a region of size 11 [-Werror=stringop-overflow=] 28 | end = memchr(str, 0, max); | ^~~~~~~~~~~~~~~~~~~ Fix this warning by using the RANDOM_STRING_LEN value as the max number of bytes to copy. Signed-off-by: Francis Deslauriers Change-Id: I61752ee17163c4d642aad21b296c0fc4fad5b7a6 (cherry picked from commit 1dd622b10db0821d77490c937caee80c65332f14) Signed-off-by: Jérémie Galarneau --- diff --git a/tests/unit/test_kernel_data.c b/tests/unit/test_kernel_data.c index 132488051..fe6062236 100644 --- a/tests/unit/test_kernel_data.c +++ b/tests/unit/test_kernel_data.c @@ -145,7 +145,7 @@ static void test_create_kernel_event(void) memset(&ev, 0, sizeof(ev)); ok(!lttng_strncpy(ev.name, get_random_string(), - LTTNG_KERNEL_SYM_NAME_LEN), + RANDOM_STRING_LEN), "Validate string length"); ev.type = LTTNG_EVENT_TRACEPOINT; ev.loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL;