* [m-c-s][PATCH] uwsgi: fixups for gcc 7.x
@ 2017-08-23 19:20 Mark Asselstine
2017-08-24 13:59 ` Bruce Ashfield
0 siblings, 1 reply; 2+ messages in thread
From: Mark Asselstine @ 2017-08-23 19:20 UTC (permalink / raw)
To: meta-virtualization, bruce.ashfield
Apply several upstream patches to fixup fallthrough switch
statements. This fixes build failures such as:
| core/hash.c:44:13: error: this statement may fall through [-Werror=implicit-fallthrough=]
| h ^= key[2] << 16;
| ~~^~~~~~~~~~~~~~~
| core/hash.c:45:7: note: here
| case 2:
| ^~~~
Signed-off-by: Mark Asselstine <mark.asselstine@windriver.com>
---
...icit-breaks-to-avoid-implicit-passthrough.patch | 50 ++++++++++++++++++++++
...icit-breaks-to-avoid-implicit-passthrough.patch | 50 ++++++++++++++++++++++
meta-openstack/recipes-extended/uwsgi/uwsgi_git.bb | 2 +
3 files changed, 102 insertions(+)
create mode 100644 meta-openstack/recipes-extended/uwsgi/files/Add-explicit-breaks-to-avoid-implicit-passthrough.patch
create mode 100644 meta-openstack/recipes-extended/uwsgi/files/more-Add-explicit-breaks-to-avoid-implicit-passthrough.patch
diff --git a/meta-openstack/recipes-extended/uwsgi/files/Add-explicit-breaks-to-avoid-implicit-passthrough.patch b/meta-openstack/recipes-extended/uwsgi/files/Add-explicit-breaks-to-avoid-implicit-passthrough.patch
new file mode 100644
index 0000000..4b9c015
--- /dev/null
+++ b/meta-openstack/recipes-extended/uwsgi/files/Add-explicit-breaks-to-avoid-implicit-passthrough.patch
@@ -0,0 +1,50 @@
+From 0a14d0f0425f00421a69f0ca8e09a92cfdfc6a36 Mon Sep 17 00:00:00 2001
+From: Paul Tagliamonte <paultag@gmail.com>
+Date: Mon, 7 Aug 2017 11:18:56 -0400
+Subject: [PATCH] Add explicit breaks to avoid implicit passthrough.
+
+commit 0a14d0f0425f00421a69f0ca8e09a92cfdfc6a36 from upstream
+git://github.com/unbit/uwsgi.git
+
+-Werror=implicit-fallthrough was added in gcc 7.1, which will
+throw a compile error if a switch has an implicit passthrough.
+
+Seeing as how this switch doesn't appear to depend on passthrough to
+function correctly, I've added explicit breaks to the switch.
+
+From https://gcc.gnu.org/gcc-7/changes.html:
+
+-Wimplicit-fallthrough warns when a switch case falls through. This
+warning has five different levels. The compiler is able to parse a wide
+range of fallthrough comments, depending on the level. It also handles
+control-flow statements, such as ifs. It's possible to suppress the
+warning by either adding a fallthrough comment, or by using a null
+statement: __attribute__ ((fallthrough)); (C, C++), or [[fallthrough]];
+(C++17), or [[gnu::fallthrough]]; (C++11/C++14). This warning is enabled
+by -Wextra.
+---
+ core/hash.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/core/hash.c b/core/hash.c
+index a1288fa..9ae6bd2 100644
+--- a/core/hash.c
++++ b/core/hash.c
+@@ -42,11 +42,14 @@ static uint32_t murmur2_hash(char *key, uint64_t keylen) {
+ switch (keylen) {
+ case 3:
+ h ^= key[2] << 16;
++ break;
+ case 2:
+ h ^= key[1] << 8;
++ break;
+ case 1:
+ h ^= key[0];
+ h *= 0x5bd1e995;
++ break;
+ }
+
+ h ^= h >> 13;
+--
+2.7.4
+
diff --git a/meta-openstack/recipes-extended/uwsgi/files/more-Add-explicit-breaks-to-avoid-implicit-passthrough.patch b/meta-openstack/recipes-extended/uwsgi/files/more-Add-explicit-breaks-to-avoid-implicit-passthrough.patch
new file mode 100644
index 0000000..5a885ed
--- /dev/null
+++ b/meta-openstack/recipes-extended/uwsgi/files/more-Add-explicit-breaks-to-avoid-implicit-passthrough.patch
@@ -0,0 +1,50 @@
+From 54666237455273e147eadb1904d261ed7624a8b6 Mon Sep 17 00:00:00 2001
+From: Paul Tagliamonte <tag@pault.ag>
+Date: Mon, 14 Aug 2017 15:42:15 -0400
+Subject: [PATCH] Add explicit breaks to avoid implicit passthrough.
+
+commit 54666237455273e147eadb1904d261ed7624a8b6 from upstream
+git://github.com/unbit/uwsgi.git
+
+-Werror=implicit-fallthrough was added in gcc 7.1, which will
+throw a compile error if a switch has an implicit passthrough.
+
+Seeing as how this switch doesn't appear to depend on passthrough to
+function correctly, I've added explicit breaks to the switch.
+
+From https://gcc.gnu.org/gcc-7/changes.html:
+
+-Wimplicit-fallthrough warns when a switch case falls through. This
+warning has five different levels. The compiler is able to parse a wide
+range of fallthrough comments, depending on the level. It also handles
+control-flow statements, such as ifs. It's possible to suppress the
+warning by either adding a fallthrough comment, or by using a null
+statement: __attribute__ ((fallthrough)); (C, C++), or [[fallthrough]];
+(C++17), or [[gnu::fallthrough]]; (C++11/C++14). This warning is enabled
+by -Wextra.
+---
+ core/routing.c | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+diff --git a/core/routing.c b/core/routing.c
+index 5887ec3..0cd6ea6 100644
+--- a/core/routing.c
++++ b/core/routing.c
+@@ -1792,10 +1792,10 @@ static int uwsgi_route_condition_ipv6in(struct wsgi_request *wsgi_req, struct uw
+
+ int i = (pfxlen / 32);
+ switch (i) {
+- case 0: mask[0] = 0;
+- case 1: mask[1] = 0;
+- case 2: mask[2] = 0;
+- case 3: mask[3] = 0;
++ case 0: mask[0] = 0; break;
++ case 1: mask[1] = 0; break;
++ case 2: mask[2] = 0; break;
++ case 3: mask[3] = 0; break;
+ }
+
+ if (pfxlen % 32)
+--
+2.7.4
+
diff --git a/meta-openstack/recipes-extended/uwsgi/uwsgi_git.bb b/meta-openstack/recipes-extended/uwsgi/uwsgi_git.bb
index dae288a..f0c535f 100644
--- a/meta-openstack/recipes-extended/uwsgi/uwsgi_git.bb
+++ b/meta-openstack/recipes-extended/uwsgi/uwsgi_git.bb
@@ -6,6 +6,8 @@ LIC_FILES_CHKSUM = "file://LICENSE;md5=33ab1ce13e2312dddfad07f97f66321f"
SRCNAME = "uwsgi"
SRC_URI = "git://github.com/unbit/uwsgi.git;branch=uwsgi-2.0 \
+ file://Add-explicit-breaks-to-avoid-implicit-passthrough.patch \
+ file://more-Add-explicit-breaks-to-avoid-implicit-passthrough.patch \
"
SRCREV="af44211739136e22471a2897383f34586284bf86"
--
2.7.4
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [m-c-s][PATCH] uwsgi: fixups for gcc 7.x
2017-08-23 19:20 [m-c-s][PATCH] uwsgi: fixups for gcc 7.x Mark Asselstine
@ 2017-08-24 13:59 ` Bruce Ashfield
0 siblings, 0 replies; 2+ messages in thread
From: Bruce Ashfield @ 2017-08-24 13:59 UTC (permalink / raw)
To: Mark Asselstine; +Cc: meta-virtualization
[-- Attachment #1: Type: text/plain, Size: 6871 bytes --]
merged.
Bruce
On Wed, Aug 23, 2017 at 3:20 PM, Mark Asselstine <
mark.asselstine@windriver.com> wrote:
> Apply several upstream patches to fixup fallthrough switch
> statements. This fixes build failures such as:
>
> | core/hash.c:44:13: error: this statement may fall through
> [-Werror=implicit-fallthrough=]
> | h ^= key[2] << 16;
> | ~~^~~~~~~~~~~~~~~
> | core/hash.c:45:7: note: here
> | case 2:
> | ^~~~
>
> Signed-off-by: Mark Asselstine <mark.asselstine@windriver.com>
> ---
> ...icit-breaks-to-avoid-implicit-passthrough.patch | 50
> ++++++++++++++++++++++
> ...icit-breaks-to-avoid-implicit-passthrough.patch | 50
> ++++++++++++++++++++++
> meta-openstack/recipes-extended/uwsgi/uwsgi_git.bb | 2 +
> 3 files changed, 102 insertions(+)
> create mode 100644 meta-openstack/recipes-extended/uwsgi/files/Add-
> explicit-breaks-to-avoid-implicit-passthrough.patch
> create mode 100644 meta-openstack/recipes-extended/uwsgi/files/more-Add-
> explicit-breaks-to-avoid-implicit-passthrough.patch
>
> diff --git a/meta-openstack/recipes-extended/uwsgi/files/Add-
> explicit-breaks-to-avoid-implicit-passthrough.patch
> b/meta-openstack/recipes-extended/uwsgi/files/Add-
> explicit-breaks-to-avoid-implicit-passthrough.patch
> new file mode 100644
> index 0000000..4b9c015
> --- /dev/null
> +++ b/meta-openstack/recipes-extended/uwsgi/files/Add-
> explicit-breaks-to-avoid-implicit-passthrough.patch
> @@ -0,0 +1,50 @@
> +From 0a14d0f0425f00421a69f0ca8e09a92cfdfc6a36 Mon Sep 17 00:00:00 2001
> +From: Paul Tagliamonte <paultag@gmail.com>
> +Date: Mon, 7 Aug 2017 11:18:56 -0400
> +Subject: [PATCH] Add explicit breaks to avoid implicit passthrough.
> +
> +commit 0a14d0f0425f00421a69f0ca8e09a92cfdfc6a36 from upstream
> +git://github.com/unbit/uwsgi.git
> +
> +-Werror=implicit-fallthrough was added in gcc 7.1, which will
> +throw a compile error if a switch has an implicit passthrough.
> +
> +Seeing as how this switch doesn't appear to depend on passthrough to
> +function correctly, I've added explicit breaks to the switch.
> +
> +From https://gcc.gnu.org/gcc-7/changes.html:
> +
> +-Wimplicit-fallthrough warns when a switch case falls through. This
> +warning has five different levels. The compiler is able to parse a wide
> +range of fallthrough comments, depending on the level. It also handles
> +control-flow statements, such as ifs. It's possible to suppress the
> +warning by either adding a fallthrough comment, or by using a null
> +statement: __attribute__ ((fallthrough)); (C, C++), or [[fallthrough]];
> +(C++17), or [[gnu::fallthrough]]; (C++11/C++14). This warning is enabled
> +by -Wextra.
> +---
> + core/hash.c | 3 +++
> + 1 file changed, 3 insertions(+)
> +
> +diff --git a/core/hash.c b/core/hash.c
> +index a1288fa..9ae6bd2 100644
> +--- a/core/hash.c
> ++++ b/core/hash.c
> +@@ -42,11 +42,14 @@ static uint32_t murmur2_hash(char *key, uint64_t
> keylen) {
> + switch (keylen) {
> + case 3:
> + h ^= key[2] << 16;
> ++ break;
> + case 2:
> + h ^= key[1] << 8;
> ++ break;
> + case 1:
> + h ^= key[0];
> + h *= 0x5bd1e995;
> ++ break;
> + }
> +
> + h ^= h >> 13;
> +--
> +2.7.4
> +
> diff --git a/meta-openstack/recipes-extended/uwsgi/files/more-Add-
> explicit-breaks-to-avoid-implicit-passthrough.patch
> b/meta-openstack/recipes-extended/uwsgi/files/more-Add-
> explicit-breaks-to-avoid-implicit-passthrough.patch
> new file mode 100644
> index 0000000..5a885ed
> --- /dev/null
> +++ b/meta-openstack/recipes-extended/uwsgi/files/more-Add-
> explicit-breaks-to-avoid-implicit-passthrough.patch
> @@ -0,0 +1,50 @@
> +From 54666237455273e147eadb1904d261ed7624a8b6 Mon Sep 17 00:00:00 2001
> +From: Paul Tagliamonte <tag@pault.ag>
> +Date: Mon, 14 Aug 2017 15:42:15 -0400
> +Subject: [PATCH] Add explicit breaks to avoid implicit passthrough.
> +
> +commit 54666237455273e147eadb1904d261ed7624a8b6 from upstream
> +git://github.com/unbit/uwsgi.git
> +
> +-Werror=implicit-fallthrough was added in gcc 7.1, which will
> +throw a compile error if a switch has an implicit passthrough.
> +
> +Seeing as how this switch doesn't appear to depend on passthrough to
> +function correctly, I've added explicit breaks to the switch.
> +
> +From https://gcc.gnu.org/gcc-7/changes.html:
> +
> +-Wimplicit-fallthrough warns when a switch case falls through. This
> +warning has five different levels. The compiler is able to parse a wide
> +range of fallthrough comments, depending on the level. It also handles
> +control-flow statements, such as ifs. It's possible to suppress the
> +warning by either adding a fallthrough comment, or by using a null
> +statement: __attribute__ ((fallthrough)); (C, C++), or [[fallthrough]];
> +(C++17), or [[gnu::fallthrough]]; (C++11/C++14). This warning is enabled
> +by -Wextra.
> +---
> + core/routing.c | 8 ++++----
> + 1 file changed, 4 insertions(+), 4 deletions(-)
> +
> +diff --git a/core/routing.c b/core/routing.c
> +index 5887ec3..0cd6ea6 100644
> +--- a/core/routing.c
> ++++ b/core/routing.c
> +@@ -1792,10 +1792,10 @@ static int uwsgi_route_condition_ipv6in(struct
> wsgi_request *wsgi_req, struct uw
> +
> + int i = (pfxlen / 32);
> + switch (i) {
> +- case 0: mask[0] = 0;
> +- case 1: mask[1] = 0;
> +- case 2: mask[2] = 0;
> +- case 3: mask[3] = 0;
> ++ case 0: mask[0] = 0; break;
> ++ case 1: mask[1] = 0; break;
> ++ case 2: mask[2] = 0; break;
> ++ case 3: mask[3] = 0; break;
> + }
> +
> + if (pfxlen % 32)
> +--
> +2.7.4
> +
> diff --git a/meta-openstack/recipes-extended/uwsgi/uwsgi_git.bb
> b/meta-openstack/recipes-extended/uwsgi/uwsgi_git.bb
> index dae288a..f0c535f 100644
> --- a/meta-openstack/recipes-extended/uwsgi/uwsgi_git.bb
> +++ b/meta-openstack/recipes-extended/uwsgi/uwsgi_git.bb
> @@ -6,6 +6,8 @@ LIC_FILES_CHKSUM = "file://LICENSE;md5=
> 33ab1ce13e2312dddfad07f97f66321f"
>
> SRCNAME = "uwsgi"
> SRC_URI = "git://github.com/unbit/uwsgi.git;branch=uwsgi-2.0 \
> + file://Add-explicit-breaks-to-avoid-implicit-passthrough.patch \
> + file://more-Add-explicit-breaks-to-avoid-implicit-passthrough.patch \
> "
>
> SRCREV="af44211739136e22471a2897383f34586284bf86"
> --
> 2.7.4
>
> --
> _______________________________________________
> meta-virtualization mailing list
> meta-virtualization@yoctoproject.org
> https://lists.yoctoproject.org/listinfo/meta-virtualization
>
--
"Thou shalt not follow the NULL pointer, for chaos and madness await thee
at its end"
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2017-08-24 13:59 ` Bruce Ashfield
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