From: Florian Weimer <fweimer@redhat.com>
To: Andreas Schwab <schwab@linux-m68k.org>
Cc: Florian Weimer via Libc-alpha <libc-alpha@sourceware.org>,
DJ Delorie <dj@redhat.com>,
Adhemerval Zanella <adhemerval.zanella@linaro.org>,
Siddhesh Poyarekar <siddhesh@redhat.com>
Subject: Re: [PATCH] malloc: Remove bin scanning from memalign (bug 30723)
Date: Mon, 14 Aug 2023 11:16:06 +0200 [thread overview]
Message-ID: <878raec7c9.fsf@oldenburg.str.redhat.com> (raw)
In-Reply-To: <87bkfc92hf.fsf@linux-m68k.org> (Andreas Schwab's message of "Sat, 12 Aug 2023 08:52:28 +0200")
* Andreas Schwab:
> malloc.c: In function '_int_free':
> malloc.c:4496:13: error: unused variable 'fwd' [-Werror=unused-variable]
> 4496 | mchunkptr fwd; /* misc temp for linking */
> | ^~~
> malloc.c:4495:13: error: unused variable 'bck' [-Werror=unused-variable]
> 4495 | mchunkptr bck; /* misc temp for linking */
> | ^~~
> malloc.c:4494:19: error: unused variable 'prevsize' [-Werror=unused-variable]
> 4494 | INTERNAL_SIZE_T prevsize; /* size of previous contiguous chunk */
> | ^~~~~~~~
> malloc.c:4493:7: error: unused variable 'nextinuse' [-Werror=unused-variable]
> 4493 | int nextinuse; /* true if nextchunk is used */
> | ^~~~~~~~~
> malloc.c:4492:19: error: unused variable 'nextsize' [-Werror=unused-variable]
> 4492 | INTERNAL_SIZE_T nextsize; /* its size */
> | ^~~~~~~~
> malloc.c:4491:13: error: unused variable 'nextchunk' [-Werror=unused-variable]
> 4491 | mchunkptr nextchunk; /* next contiguous chunk */
> | ^~~~~~~~~
> cc1: all warnings being treated as errors
> make[2]: *** [../o-iterator.mk:9: /home/abuild/rpmbuild/BUILD/glibc-2.38.9000.31.g084fb31bc2/cc-base/malloc/malloc.o] Error 1
Found it, I believe I'm not seeing this because of:
commit 78ceef25d64efeeb6067d1cb282a00466e637e2a
Author: Adhemerval Zanella Netto <adhemerval.zanella@linaro.org>
Date: Mon Jul 24 14:22:27 2023 -0300
configure: Remove --enable-all-warnings option
The option is not activelly tested and has bitrotten, to fix it
would require a lot of work and multiple fixes. A better option
would to evaluate each option and enable the warning if it makes
sense.
Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
diff --git a/Makeconfig b/Makeconfig
index 77d7fd14df..c4dd9ea8f2 100644
--- a/Makeconfig
+++ b/Makeconfig
@@ -857,12 +857,7 @@ host-test-program-cmd = $(host-built-program-cmd)
endif
# Extra flags to pass to GCC.
-ifeq ($(all-warnings),yes)
-+gccwarn := -Wall -Wwrite-strings -Wcast-qual -Wbad-function-cast -Wmissing-noreturn -Wmissing-prototypes -Wmissing-declarations -Wcomment -Wcomments -Wtrigraphs -Wsign-compare -Wfloat-equal -Wmultichar
-else
-+gccwarn := -Wall -Wwrite-strings
-endif
-+gccwarn += -Wundef
+gccwarn := -Wall -Wwrite-strings -Wundef
ifeq ($(enable-werror),yes)
+gccwarn += -Werror
endif
It dropped -Wall from glibc's default CFLAGS due to a typo (gccwarn
instead of +gccwarn).
Will test a fix with build-many-glibcs.py.
Thanks,
Florian
next prev parent reply other threads:[~2023-08-14 9:16 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-10 17:36 Florian Weimer
2023-08-10 18:04 ` DJ Delorie
2023-08-11 7:20 ` Florian Weimer
2023-08-11 23:14 ` DJ Delorie
2023-08-21 14:01 ` Sam James
2023-08-21 14:45 ` Florian Weimer
2023-08-11 8:54 ` Maxim Kuvyrkov
2023-08-11 9:14 ` Florian Weimer
2023-08-11 14:52 ` Florian Weimer
2023-08-12 6:52 ` Andreas Schwab
2023-08-12 13:23 ` Florian Weimer
2023-08-12 13:33 ` Florian Weimer
2023-08-12 14:50 ` Andreas Schwab
2023-08-14 2:14 ` Xi Ruoyao
2023-08-14 9:16 ` Florian Weimer [this message]
2023-08-15 11:58 ` Adhemerval Zanella Netto
2023-08-14 9:42 Florian Weimer
2023-08-14 20:49 ` DJ Delorie
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