--- Begin Message ---
|
Subject: |
[PATCH] gnu: Fix build error of libpfm4. |
|
Date: |
Tue, 14 Dec 2021 21:21:41 -0500 |
For some reason, the build recently failed with:
pfmlib_perf_event_pmu.c:349:36: error: ?%s? directive output may be
truncated writing up to 255 bytes into a region of size between 0 and 4095
[-Werror=format-truncation=]
349 | snprintf(d2path, MAXPATHLEN, "%s/%s", debugfs_mnt,
d1->d_name);
| ^~
pfmlib_perf_event_pmu.c:349:3: note: ?snprintf? output between 2 and
4352 bytes into a destination of size 4096
349 | snprintf(d2path, MAXPATHLEN, "%s/%s", debugfs_mnt,
d1->d_name);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
pfmlib_perf_event_pmu.c:399:58: error: ?%s? directive output may be
truncated writing up to 255 bytes into a region of size between 0 and 4095
[-Werror=format-truncation=]
399 | snprintf(idpath, MAXPATHLEN,
"%s/%s/id", d2path, d2->d_name);
| ^~
pfmlib_perf_event_pmu.c:399:25: note: ?snprintf? output between 5 and
4355 bytes into a destination of size 4096
399 | snprintf(idpath, MAXPATHLEN,
"%s/%s/id", d2path, d2->d_name);
|
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
* gnu/packages/linux.scm (libpfm4): Fix build.
(%standard-phases) Add `-Wno-format-truncation` to CFLAGS in build phase.
---
gnu/packages/linux.scm | 1 +
1 file changed, 1 insertion(+)
diff --git a/gnu/packages/linux.scm b/gnu/packages/linux.scm
index c752df7996..a1c9408e89 100644
--- a/gnu/packages/linux.scm
+++ b/gnu/packages/linux.scm
@@ -7632,6 +7632,7 @@ (define-public libpfm4
(lambda* (#:key inputs outputs #:allow-other-keys)
(let* ((out (assoc-ref outputs "out")))
(setenv "CC" "gcc")
+ (setenv "CFLAGS" "-Wno-format-truncation")
(invoke "make")
#t)))
(replace 'install
--
2.34.0
--- End Message ---
--- Begin Message ---
|
Subject: |
Re: [bug#52499] [PATCH] gnu: Fix build error of libpfm4. |
|
Date: |
Wed, 15 Dec 2021 00:41:08 -0500 |
On Tue, Dec 14, 2021 at 09:21:41PM -0500, Olivier Dion via Guix-patches via
wrote:
> For some reason, the build recently failed with:
>
> pfmlib_perf_event_pmu.c:349:36: error: ?%s? directive output may be
> truncated writing up to 255 bytes into a region of size between 0 and 4095
> [-Werror=format-truncation=]
> 349 | snprintf(d2path, MAXPATHLEN, "%s/%s", debugfs_mnt,
> d1->d_name);
> | ^~
> pfmlib_perf_event_pmu.c:349:3: note: ?snprintf? output between 2 and
> 4352 bytes into a destination of size 4096
> 349 | snprintf(d2path, MAXPATHLEN, "%s/%s", debugfs_mnt,
> d1->d_name);
> |
> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> pfmlib_perf_event_pmu.c:399:58: error: ?%s? directive output may be
> truncated writing up to 255 bytes into a region of size between 0 and 4095
> [-Werror=format-truncation=]
> 399 | snprintf(idpath, MAXPATHLEN,
> "%s/%s/id", d2path, d2->d_name);
> | ^~
> pfmlib_perf_event_pmu.c:399:25: note: ?snprintf? output between 5 and
> 4355 bytes into a destination of size 4096
> 399 | snprintf(idpath, MAXPATHLEN,
> "%s/%s/id", d2path, d2->d_name);
> |
> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> cc1: all warnings being treated as errors
>
> * gnu/packages/linux.scm (libpfm4): Fix build.
> (%standard-phases) Add `-Wno-format-truncation` to CFLAGS in build phase.
Thanks! Pushed as c7795eccaf432beec7366fa901b4bb6fc24cfead
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