Hi,
I got this error on 32 bit ARM:
make[2]: Entering directory
'/home/portage/portage/net-fs/nfs-utils-2.3.2/work/nfs-utils-
2.3.2/tools/locktest'
armv7a-hardfloat-linux-gnueabi-gcc -DHAVE_CONFIG_H -I.
-I../../support/include
-I/usr/include/tirpc -D_GNU_SOURCE -pipe -Wall -Wextra
-Werror=strict-prototypes -Werror=missing-prototypes
-Werror=missing-declarations -Werror=format=2 -Werror=undef
-Werror=missing-include-dirs -Werror=strict-aliasing=2 -Werror=init-
self
-Werror=implicit-function-declaration -Werror=return-type -
Werror=switch
-Werror=overflow -Werror=parentheses -Werror=aggregate-return
-Werror=unused-result -fno-strict-aliasing -Werror=format-overflow=2
-Werror=int-conversion -Werror=incompatible-pointer-types
-Werror=misleading-indentation -O3 -pipe -fomit-frame-pointer
-mcpu=cortex-a7
-mtune=cortex-a7 -mfpu=neon-vfpv4 -mfloat-abi=hard -ffast-math -c -o
testlk.o
testlk.c
testlk.c: In function ‘main’:
testlk.c:84:45: error: format ‘%ld’ expects argument of type ‘long
int’, but
argument 4 has type ‘__off64_t {aka long long int}’ [-Werror=format=]
printf("%s: conflicting lock by %d on (%ld;%ld)\n",
~~^
%lld
fname, fl.l_pid, fl.l_start, fl.l_len);
~~~~~~~~~~
testlk.c:84:49: error: format ‘%ld’ expects argument of type ‘long
int’, but
argument 5 has type ‘__off64_t {aka long long int}’ [-Werror=format=]
printf("%s: conflicting lock by %d on (%ld;%ld)\n",
~~^
%lld
fname, fl.l_pid, fl.l_start, fl.l_len);
You can not assume long is 64 bit wide on 32 bit architectures. You
have to use
long long. Please apply the patch below
* 2nd change removes whitespace
* 3rd change is this bug
* 1st change suppress this warning from gcc-7 and higher:
testlk.c: In function 'main':
testlk.c:30:4: warning: this statement may fall through
[-Wimplicit-fallthrough=]
usage(0);
^~~~~~~~
testlk.c:31:3: note: here
case 'r':
^~~~
see
https://gcc.gnu.org/onlinedocs/gcc-7.3.0/gcc/Warning-Options.html#index
-Wimplicit-fallthrough_003d
I provide you this bug via email, because I can not upload files into
Bugzilla
https://bugzilla.linux-nfs.org/show_bug.cgi?id=325
Your Bugzilla has also an invalid security certificate
https://bugzilla.linux-nfs.org/show_bug.cgi?id=323
The Bug described in this email is
https://bugzilla.linux-nfs.org/show_bug.cgi?id=324
------------------------------------------------------
fl.l_start and fl.l_len are 64 bit wide. It has been assumed that long
is 64 bit in a printf(), which is incorrect on a 32 bit archtecture
* 1st change suppress fall through warning from gcc-7 and higher
* 2nd change removes whitespace
* 3rd change is this bug and changes this into a long long
Signed-off-by: Philipp Psurek <philipp.psurek@xxxxxxxxx>
---
--- a/tools/locktest/testlk.c 2018-05-22 20:33:01.000000000 +0200
+++ b/tools/locktest/testlk.c 2018-06-03 17:26:36.800202901 +0200
@@ -28,6 +28,7 @@
switch (c) {
case 'h':
usage(0);
+ /* fall through */
case 'r':
cmd = F_SETLK;
typ = F_RDLCK;
@@ -75,13 +76,13 @@
if (fcntl(fd, cmd, &fl) < 0)
fatal("fcntl");
printf("fcntl: ok\n");
-
+
/* printf("TP2\n"); */
if (cmd == F_GETLK) {
if (fl.l_type == F_UNLCK) {
printf("%s: no conflicting lock\n", fname);
} else {
- printf("%s: conflicting lock by %d on
(%ld;%ld)\n",
+ printf("%s: conflicting lock by %d on
(%lld;%lld)\n",
fname, fl.l_pid, fl.l_start,
fl.l_len);
}
return 0;
--
To unsubscribe from this list: send the line "unsubscribe linux-nfs" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
