diff mbox series

[v2] tools/mm: fix undefined reference to pthread_once

Message ID 20230831012605.3977922-1-xiexiuqi@huaweicloud.com (mailing list archive)
State New
Headers show
Series [v2] tools/mm: fix undefined reference to pthread_once | expand

Commit Message

Xie XiuQi Aug. 31, 2023, 1:26 a.m. UTC 
From: Xie XiuQi <xiexiuqi@huawei.com>

Commit 97d5f2e9ee12 ("tools api fs: More thread safety for global
filesystem variables") introduces pthread_once, so the libpthread
should be added at link time, or we'll meet the following compile
error when 'make -C tools/mm':

  gcc -Wall -Wextra -I../lib/ -o page-types page-types.c ../lib/api/libapi.a
  ~/linux/tools/lib/api/fs/fs.c:146: undefined reference to `pthread_once'
  ~/linux/tools/lib/api/fs/fs.c:147: undefined reference to `pthread_once'
  ~/linux/tools/lib/api/fs/fs.c:148: undefined reference to `pthread_once'
  ~/linux/tools/lib/api/fs/fs.c:149: undefined reference to `pthread_once'
  ~/linux/tools/lib/api/fs/fs.c:150: undefined reference to `pthread_once'
  /usr/bin/ld: ../lib/api/libapi.a(libapi-in.o):~/linux/tools/lib/api/fs/fs.c:151:
  more undefined references to `pthread_once' follow
  collect2: error: ld returned 1 exit status
  make: *** [Makefile:22: page-types] Error 1

Fixes: 97d5f2e9ee12 ("tools api fs: More thread safety for global filesystem variables")
Signed-off-by: Xie XiuQi <xiexiuqi@huawei.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Matthew Wilcox <willy@infradead.org>

---
v2: use '-pthread' instead of -lpthread'

---
 tools/mm/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/tools/mm/Makefile b/tools/mm/Makefile
index 6c1da51f4177..9997b2e401ae 100644
--- a/tools/mm/Makefile
+++ b/tools/mm/Makefile
@@ -9,7 +9,7 @@  LIB_DIR = ../lib/api
 LIBS = $(LIB_DIR)/libapi.a
 
 CFLAGS += -Wall -Wextra -I../lib/
-LDFLAGS += $(LIBS)
+LDFLAGS += $(LIBS) -pthread
 
 all: $(TARGETS)