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authorKhem Raj <raj.khem@gmail.com>2017-04-19 19:31:47 -0700
committerRichard Purdie <richard.purdie@linuxfoundation.org>2017-05-11 16:59:18 +0100
commit63bafcca5d4c0b5d6481f5f64fe2c9d1f3d9e6fe (patch)
tree7c49d7aae8d946b0ebbdb826a17538c2193782e0 /meta/recipes-extended
parent7f5437ac91a66901d71828fe648a8a470af877a3 (diff)
downloadpoky-63bafcca5d4c0b5d6481f5f64fe2c9d1f3d9e6fe.tar.gz
mdadm: Backport and make fixes for building with gcc7
(From OE-Core rev: c901af4574693ede5f1dcbccccc7c5a820b3d659) Signed-off-by: Khem Raj <raj.khem@gmail.com> Signed-off-by: Ross Burton <ross.burton@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'meta/recipes-extended')
-rw-r--r--meta/recipes-extended/mdadm/files/0001-mdadm-Add-Wimplicit-fallthrough-0-in-Makefile.patch37
-rw-r--r--meta/recipes-extended/mdadm/files/0002-mdadm-Specify-enough-length-when-write-to-buffer.patch75
-rw-r--r--meta/recipes-extended/mdadm/files/0003-Replace-snprintf-with-strncpy-at-some-places-to-avoi.patch59
-rw-r--r--meta/recipes-extended/mdadm/files/0004-mdadm-Forced-type-conversion-to-avoid-truncation.patch33
-rw-r--r--meta/recipes-extended/mdadm/files/0005-Add-a-comment-to-indicate-valid-fallthrough.patch128
-rw-r--r--meta/recipes-extended/mdadm/mdadm_4.0.bb5
6 files changed, 337 insertions, 0 deletions
diff --git a/meta/recipes-extended/mdadm/files/0001-mdadm-Add-Wimplicit-fallthrough-0-in-Makefile.patch b/meta/recipes-extended/mdadm/files/0001-mdadm-Add-Wimplicit-fallthrough-0-in-Makefile.patch
new file mode 100644
index 0000000000..ce15170c75
--- /dev/null
+++ b/meta/recipes-extended/mdadm/files/0001-mdadm-Add-Wimplicit-fallthrough-0-in-Makefile.patch
@@ -0,0 +1,37 @@
1From aa09af0fe2ec0737fa04ffd00957532684e257b9 Mon Sep 17 00:00:00 2001
2From: Xiao Ni <xni@redhat.com>
3Date: Fri, 17 Mar 2017 19:55:42 +0800
4Subject: [PATCH 1/5] mdadm: Add Wimplicit-fallthrough=0 in Makefile
5
6There are many errors like 'error: this statement may fall through'.
7But the logic is right. So add the flag Wimplicit-fallthrough=0
8to disable the error messages. The method I use is from
9https://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html
10#index-Wimplicit-fallthrough-375
11
12Signed-off-by: Xiao Ni <xni@redhat.com>
13Signed-off-by: Jes Sorensen <Jes.Sorensen@gmail.com>
14---
15Upstream-Status: Backport
16 Makefile | 5 +++++
17 1 file changed, 5 insertions(+)
18
19diff --git a/Makefile b/Makefile
20index 0f307ec..e1a7058 100644
21--- a/Makefile
22+++ b/Makefile
23@@ -48,6 +48,11 @@ ifdef WARN_UNUSED
24 CWFLAGS += -Wp,-D_FORTIFY_SOURCE=2 -O3
25 endif
26
27+FALLTHROUGH := $(shell gcc -v --help 2>&1 | grep "implicit-fallthrough" | wc -l)
28+ifneq "$(FALLTHROUGH)" "0"
29+CWFLAGS += -Wimplicit-fallthrough=0
30+endif
31+
32 ifdef DEBIAN
33 CPPFLAGS += -DDEBIAN
34 endif
35--
362.12.2
37
diff --git a/meta/recipes-extended/mdadm/files/0002-mdadm-Specify-enough-length-when-write-to-buffer.patch b/meta/recipes-extended/mdadm/files/0002-mdadm-Specify-enough-length-when-write-to-buffer.patch
new file mode 100644
index 0000000000..cbce053a3a
--- /dev/null
+++ b/meta/recipes-extended/mdadm/files/0002-mdadm-Specify-enough-length-when-write-to-buffer.patch
@@ -0,0 +1,75 @@
1From bb4df273041ba206008bdb0ada75ccd97c29f623 Mon Sep 17 00:00:00 2001
2From: Xiao Ni <xni@redhat.com>
3Date: Fri, 17 Mar 2017 19:55:43 +0800
4Subject: [PATCH 2/5] mdadm: Specify enough length when write to buffer
5MIME-Version: 1.0
6Content-Type: text/plain; charset=UTF-8
7Content-Transfer-Encoding: 8bit
8
9In Detail.c the buffer path in function Detail is defined as path[200],
10in fact the max lenth of content which needs to write to the buffer is
11287. Because the length of dname of struct dirent is 255.
12During building it reports error:
13error: ā€˜%sā€™ directive writing up to 255 bytes into a region of size 189
14[-Werror=format-overflow=]
15
16In function examine_super0 there is a buffer nb with length 5.
17But it need to show a int type argument. The lenght of max
18number of int is 10. So the buffer length should be 11.
19
20In human_size function the length of buf is 30. During building
21there is a error:
22output between 20 and 47 bytes into a destination of size 30.
23Change the length to 47.
24
25Signed-off-by: Xiao Ni <xni@redhat.com>
26Signed-off-by: Jes Sorensen <Jes.Sorensen@gmail.com>
27---
28Upstream-Status: Backport
29 Detail.c | 2 +-
30 super0.c | 2 +-
31 util.c | 2 +-
32 3 files changed, 3 insertions(+), 3 deletions(-)
33
34diff --git a/Detail.c b/Detail.c
35index 509b0d4..cb33794 100644
36--- a/Detail.c
37+++ b/Detail.c
38@@ -575,7 +575,7 @@ This is pretty boring
39 printf(" Member Arrays :");
40
41 while (dir && (de = readdir(dir)) != NULL) {
42- char path[200];
43+ char path[287];
44 char vbuf[1024];
45 int nlen = strlen(sra->sys_name);
46 dev_t devid;
47diff --git a/super0.c b/super0.c
48index 938cfd9..f5b4507 100644
49--- a/super0.c
50+++ b/super0.c
51@@ -231,7 +231,7 @@ static void examine_super0(struct supertype *st, char *homehost)
52 d++) {
53 mdp_disk_t *dp;
54 char *dv;
55- char nb[5];
56+ char nb[11];
57 int wonly, failfast;
58 if (d>=0) dp = &sb->disks[d];
59 else dp = &sb->this_disk;
60diff --git a/util.c b/util.c
61index f100972..32bd909 100644
62--- a/util.c
63+++ b/util.c
64@@ -811,7 +811,7 @@ unsigned long calc_csum(void *super, int bytes)
65 #ifndef MDASSEMBLE
66 char *human_size(long long bytes)
67 {
68- static char buf[30];
69+ static char buf[47];
70
71 /* We convert bytes to either centi-M{ega,ibi}bytes or
72 * centi-G{igi,ibi}bytes, with appropriate rounding,
73--
742.12.2
75
diff --git a/meta/recipes-extended/mdadm/files/0003-Replace-snprintf-with-strncpy-at-some-places-to-avoi.patch b/meta/recipes-extended/mdadm/files/0003-Replace-snprintf-with-strncpy-at-some-places-to-avoi.patch
new file mode 100644
index 0000000000..dcec84ffcd
--- /dev/null
+++ b/meta/recipes-extended/mdadm/files/0003-Replace-snprintf-with-strncpy-at-some-places-to-avoi.patch
@@ -0,0 +1,59 @@
1From bc87af1314325b00c6ac002a60a2b0f0caa81e34 Mon Sep 17 00:00:00 2001
2From: Xiao Ni <xni@redhat.com>
3Date: Sat, 18 Mar 2017 10:33:44 +0800
4Subject: [PATCH 3/5] Replace snprintf with strncpy at some places to avoid
5 truncation
6
7In gcc7 there are some building errors like:
8directive output may be truncated writing up to 31 bytes into a region of size 24
9snprintf(str, MPB_SIG_LEN, %s, mpb->sig);
10
11It just need to copy one string to target. So use strncpy to replace it.
12
13For this line code: snprintf(str, MPB_SIG_LEN, %s, mpb->sig);
14Because mpb->sig has the content of version after magic, so
15it's better to use strncpy to replace snprintf too.
16
17Signed-off-by: Xiao Ni <xni@redhat.com>
18Signed-off-by: Jes Sorensen <Jes.Sorensen@gmail.com>
19---
20Upstream-Status: Backport
21 super-intel.c | 9 ++++++---
22 1 file changed, 6 insertions(+), 3 deletions(-)
23
24diff --git a/super-intel.c b/super-intel.c
25index 57c7e75..5499098 100644
26--- a/super-intel.c
27+++ b/super-intel.c
28@@ -1811,7 +1811,8 @@ static void examine_super_imsm(struct supertype *st, char *homehost)
29 __u32 reserved = imsm_reserved_sectors(super, super->disks);
30 struct dl *dl;
31
32- snprintf(str, MPB_SIG_LEN, "%s", mpb->sig);
33+ strncpy(str, (char *)mpb->sig, MPB_SIG_LEN);
34+ str[MPB_SIG_LEN-1] = '\0';
35 printf(" Magic : %s\n", str);
36 snprintf(str, strlen(MPB_VERSION_RAID0), "%s", get_imsm_version(mpb));
37 printf(" Version : %s\n", get_imsm_version(mpb));
38@@ -7142,14 +7143,16 @@ static int update_subarray_imsm(struct supertype *st, char *subarray,
39
40 u->type = update_rename_array;
41 u->dev_idx = vol;
42- snprintf((char *) u->name, MAX_RAID_SERIAL_LEN, "%s", name);
43+ strncpy((char *) u->name, name, MAX_RAID_SERIAL_LEN);
44+ u->name[MAX_RAID_SERIAL_LEN-1] = '\0';
45 append_metadata_update(st, u, sizeof(*u));
46 } else {
47 struct imsm_dev *dev;
48 int i;
49
50 dev = get_imsm_dev(super, vol);
51- snprintf((char *) dev->volume, MAX_RAID_SERIAL_LEN, "%s", name);
52+ strncpy((char *) dev->volume, name, MAX_RAID_SERIAL_LEN);
53+ dev->volume[MAX_RAID_SERIAL_LEN-1] = '\0';
54 for (i = 0; i < mpb->num_raid_devs; i++) {
55 dev = get_imsm_dev(super, i);
56 handle_missing(super, dev);
57--
582.12.2
59
diff --git a/meta/recipes-extended/mdadm/files/0004-mdadm-Forced-type-conversion-to-avoid-truncation.patch b/meta/recipes-extended/mdadm/files/0004-mdadm-Forced-type-conversion-to-avoid-truncation.patch
new file mode 100644
index 0000000000..94fde42e99
--- /dev/null
+++ b/meta/recipes-extended/mdadm/files/0004-mdadm-Forced-type-conversion-to-avoid-truncation.patch
@@ -0,0 +1,33 @@
1From 5da889032e2d99751ed9fe60016146e9ae8114cd Mon Sep 17 00:00:00 2001
2From: Xiao Ni <xni@redhat.com>
3Date: Sat, 18 Mar 2017 10:33:45 +0800
4Subject: [PATCH 4/5] mdadm: Forced type conversion to avoid truncation
5
6Gcc reports it needs 19 bytes to right to disk->serial. Because the
7type of argument i is int. But the meaning of i is failed disk
8number. So it doesn't need to use 19 bytes. Just add a type
9conversion to avoid this building error
10
11Signed-off-by: Xiao Ni <xni@redhat.com>
12Signed-off-by: Jes Sorensen <Jes.Sorensen@gmail.com>
13---
14Upstream-Status: Backport
15 super-intel.c | 2 +-
16 1 file changed, 1 insertion(+), 1 deletion(-)
17
18diff --git a/super-intel.c b/super-intel.c
19index 5499098..4e466ff 100644
20--- a/super-intel.c
21+++ b/super-intel.c
22@@ -5228,7 +5228,7 @@ static int init_super_imsm_volume(struct supertype *st, mdu_array_info_t *info,
23 disk->status = CONFIGURED_DISK | FAILED_DISK;
24 disk->scsi_id = __cpu_to_le32(~(__u32)0);
25 snprintf((char *) disk->serial, MAX_RAID_SERIAL_LEN,
26- "missing:%d", i);
27+ "missing:%d", (__u8)i);
28 }
29 find_missing(super);
30 } else {
31--
322.12.2
33
diff --git a/meta/recipes-extended/mdadm/files/0005-Add-a-comment-to-indicate-valid-fallthrough.patch b/meta/recipes-extended/mdadm/files/0005-Add-a-comment-to-indicate-valid-fallthrough.patch
new file mode 100644
index 0000000000..3d9d3b9044
--- /dev/null
+++ b/meta/recipes-extended/mdadm/files/0005-Add-a-comment-to-indicate-valid-fallthrough.patch
@@ -0,0 +1,128 @@
1From 09014233bf10900f7bd8390b3b64ff82bca45222 Mon Sep 17 00:00:00 2001
2From: Khem Raj <raj.khem@gmail.com>
3Date: Wed, 19 Apr 2017 12:04:15 -0700
4Subject: [PATCH 5/5] Add a comment to indicate valid fallthrough
5
6gcc7 warns about code with fallthroughs, this patch adds
7the comment to indicate a valid fallthrough, helps gcc7
8compiler warnings
9
10This works in cross and native compilation case
11
12Signed-off-by: Khem Raj <raj.khem@gmail.com>
13---
14Upstream-Status: Submitted
15
16 Grow.c | 4 ++++
17 bitmap.c | 8 ++++++++
18 mdadm.c | 2 ++
19 super-intel.c | 1 +
20 util.c | 1 +
21 5 files changed, 16 insertions(+)
22
23diff --git a/Grow.c b/Grow.c
24index 455c5f9..27c73b1 100755
25--- a/Grow.c
26+++ b/Grow.c
27@@ -1257,6 +1257,7 @@ char *analyse_change(char *devname, struct mdinfo *info, struct reshape *re)
28 switch (info->new_level) {
29 case 4:
30 delta_parity = 1;
31+ /* fallthrough */
32 case 0:
33 re->level = 4;
34 re->before.layout = 0;
35@@ -1284,10 +1285,12 @@ char *analyse_change(char *devname, struct mdinfo *info, struct reshape *re)
36
37 case 4:
38 info->array.layout = ALGORITHM_PARITY_N;
39+ /* fallthrough */
40 case 5:
41 switch (info->new_level) {
42 case 0:
43 delta_parity = -1;
44+ /* fallthrough */
45 case 4:
46 re->level = info->array.level;
47 re->before.data_disks = info->array.raid_disks - 1;
48@@ -1343,6 +1346,7 @@ char *analyse_change(char *devname, struct mdinfo *info, struct reshape *re)
49 case 4:
50 case 5:
51 delta_parity = -1;
52+ /* fallthrough */
53 case 6:
54 re->level = 6;
55 re->before.data_disks = info->array.raid_disks - 2;
56diff --git a/bitmap.c b/bitmap.c
57index ccedfd3..a6ff091 100644
58--- a/bitmap.c
59+++ b/bitmap.c
60@@ -82,13 +82,21 @@ static inline int count_dirty_bits_byte(char byte, int num_bits)
61
62 switch (num_bits) { /* fall through... */
63 case 8: if (byte & 128) num++;
64+ /* fallthrough */
65 case 7: if (byte & 64) num++;
66+ /* fallthrough */
67 case 6: if (byte & 32) num++;
68+ /* fallthrough */
69 case 5: if (byte & 16) num++;
70+ /* fallthrough */
71 case 4: if (byte & 8) num++;
72+ /* fallthrough */
73 case 3: if (byte & 4) num++;
74+ /* fallthrough */
75 case 2: if (byte & 2) num++;
76+ /* fallthrough */
77 case 1: if (byte & 1) num++;
78+ /* fallthrough */
79 default: break;
80 }
81
82diff --git a/mdadm.c b/mdadm.c
83index c3a265b..2d06d3b 100644
84--- a/mdadm.c
85+++ b/mdadm.c
86@@ -148,6 +148,7 @@ int main(int argc, char *argv[])
87 mode == CREATE || mode == GROW ||
88 mode == INCREMENTAL || mode == MANAGE)
89 break; /* b means bitmap */
90+ /* fallthrough */
91 case Brief:
92 c.brief = 1;
93 continue;
94@@ -828,6 +829,7 @@ int main(int argc, char *argv[])
95
96 case O(INCREMENTAL,NoDegraded):
97 pr_err("--no-degraded is deprecated in Incremental mode\n");
98+ /* fallthrough */
99 case O(ASSEMBLE,NoDegraded): /* --no-degraded */
100 c.runstop = -1; /* --stop isn't allowed for --assemble,
101 * so we overload slightly */
102diff --git a/super-intel.c b/super-intel.c
103index 4e466ff..00a2925 100644
104--- a/super-intel.c
105+++ b/super-intel.c
106@@ -3271,6 +3271,7 @@ static void getinfo_super_imsm_volume(struct supertype *st, struct mdinfo *info,
107 << SECT_PER_MB_SHIFT;
108 }
109 }
110+ /* fallthrough */
111 case MIGR_VERIFY:
112 /* we could emulate the checkpointing of
113 * 'sync_action=check' migrations, but for now
114diff --git a/util.c b/util.c
115index 32bd909..f2a4d19 100644
116--- a/util.c
117+++ b/util.c
118@@ -335,6 +335,7 @@ unsigned long long parse_size(char *size)
119 switch (*c) {
120 case 'K':
121 c++;
122+ /* fallthrough */
123 default:
124 s *= 2;
125 break;
126--
1272.12.2
128
diff --git a/meta/recipes-extended/mdadm/mdadm_4.0.bb b/meta/recipes-extended/mdadm/mdadm_4.0.bb
index 62614f060f..98a10a8b15 100644
--- a/meta/recipes-extended/mdadm/mdadm_4.0.bb
+++ b/meta/recipes-extended/mdadm/mdadm_4.0.bb
@@ -16,6 +16,11 @@ SRC_URI = "${KERNELORG_MIRROR}/linux/utils/raid/mdadm/${BPN}-${PV}.tar.xz \
16 file://run-ptest \ 16 file://run-ptest \
17 file://0001-mdadm.h-Undefine-dprintf-before-redefining.patch \ 17 file://0001-mdadm.h-Undefine-dprintf-before-redefining.patch \
18 file://0001-include-sys-sysmacros.h-for-major-minor-defintions.patch \ 18 file://0001-include-sys-sysmacros.h-for-major-minor-defintions.patch \
19 file://0001-mdadm-Add-Wimplicit-fallthrough-0-in-Makefile.patch \
20 file://0002-mdadm-Specify-enough-length-when-write-to-buffer.patch \
21 file://0003-Replace-snprintf-with-strncpy-at-some-places-to-avoi.patch \
22 file://0004-mdadm-Forced-type-conversion-to-avoid-truncation.patch \
23 file://0005-Add-a-comment-to-indicate-valid-fallthrough.patch \
19 " 24 "
20SRC_URI[md5sum] = "2cb4feffea9167ba71b5f346a0c0a40d" 25SRC_URI[md5sum] = "2cb4feffea9167ba71b5f346a0c0a40d"
21SRC_URI[sha256sum] = "1d6ae7f24ced3a0fa7b5613b32f4a589bb4881e3946a5a2c3724056254ada3a9" 26SRC_URI[sha256sum] = "1d6ae7f24ced3a0fa7b5613b32f4a589bb4881e3946a5a2c3724056254ada3a9"