diff options
| author | Kevin Brodsky <kevin.brodsky@arm.com> | 2024-12-09 09:50:10 +0000 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2025-01-13 22:40:54 -0800 |
| commit | 46036188ea1f5266df23a6149dea0df1c77cd1c7 (patch) | |
| tree | dc833893ddccfce9b96b7e2d91bf47399f0b788c | |
| parent | 71384f84cbbe7660023b01c1a0fa9cc7dbc487a7 (diff) | |
selftests/mm: build with -O2
The mm kselftests are currently built with no optimisation (-O0). It's
unclear why, and besides being obviously suboptimal, this also prevents
the pkeys tests from working as intended. Let's build all the tests with
-O2.
[kevin.brodsky@arm.com: silence unused-result warnings]
Link: https://lkml.kernel.org/r/20250107170110.2819685-1-kevin.brodsky@arm.com
Link: https://lkml.kernel.org/r/20241209095019.1732120-6-kevin.brodsky@arm.com
Signed-off-by: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: Aruna Ramakrishna <aruna.ramakrishna@oracle.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Joey Gouly <joey.gouly@arm.com>
Cc: Keith Lucas <keith.lucas@oracle.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| -rw-r--r-- | tools/testing/selftests/mm/Makefile | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/tools/testing/selftests/mm/Makefile b/tools/testing/selftests/mm/Makefile index f2db43c64f83..0d5d8f2f8652 100644 --- a/tools/testing/selftests/mm/Makefile +++ b/tools/testing/selftests/mm/Makefile @@ -33,9 +33,16 @@ endif # LDLIBS. MAKEFLAGS += --no-builtin-rules -CFLAGS = -Wall -I $(top_srcdir) $(EXTRA_CFLAGS) $(KHDR_INCLUDES) $(TOOLS_INCLUDES) +CFLAGS = -Wall -O2 -I $(top_srcdir) $(EXTRA_CFLAGS) $(KHDR_INCLUDES) $(TOOLS_INCLUDES) LDLIBS = -lrt -lpthread -lm +# Some distributions (such as Ubuntu) configure GCC so that _FORTIFY_SOURCE is +# automatically enabled at -O1 or above. This triggers various unused-result +# warnings where functions such as read() or write() are called and their +# return value is not checked. Disable _FORTIFY_SOURCE to silence those +# warnings. +CFLAGS += -U_FORTIFY_SOURCE + KDIR ?= /lib/modules/$(shell uname -r)/build ifneq (,$(wildcard $(KDIR)/Module.symvers)) ifneq (,$(wildcard $(KDIR)/include/linux/page_frag_cache.h)) |