* Wrong warning in open_catalog.c with trunk GCC?
@ 2023-04-01 19:09 Jan-Benedict Glaw
2023-04-01 19:18 ` Sam James
0 siblings, 1 reply; 3+ messages in thread
From: Jan-Benedict Glaw @ 2023-04-01 19:09 UTC (permalink / raw)
To: libc-alpha
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Hi!
With the CI builds, after supplying --disable-gcov to gcc-first, I see
this while building glibc:
x86_64-glibc-linux-gnu-gcc open_catalog.c -c -std=gnu11 -fgnu89-inline -g -O2 -Wall -Wwrite-strings -Wundef -Werror -fmerge-all-constants -frounding-math -fno-stack-protector -fno-common -Wstrict-prototypes -Wold-style-definition -fmath-errno -fPIE -ftls-model=initial-exec -DNLSPATH='"/usr/share/locale/%L/%N:/usr/share/locale/%L/LC_MESSAGES/%N:/usr/share/locale/%l/%N:/usr/share/locale/%l/LC_MESSAGES/%N:"' -I../include -I/var/lib/laminar/run/glibcbot-x86_64-linux-gnu/10/build/compilers/x86_64-linux-gnu/glibc/x86_64-linux-gnu/catgets -I/var/lib/laminar/run/glibcbot-x86_64-linux-gnu/10/build/compilers/x86_64-linux-gnu/glibc/x86_64-linux-gnu -I../sysdeps/unix/sysv/linux/x86_64/64 -I../sysdeps/unix/sysv/linux/x86_64 -I../sysdeps/unix/sysv/linux/x86/include -I../sysdeps/unix/sysv/linux/x86 -I../sysdeps/x86/nptl -I../sysdeps/unix/sysv/linux/wordsize-64 -I../sysdeps/x86_64/nptl -I../sysdeps/unix/sysv/linux/include -I../sysdeps/unix/sysv/linux -I../sysdeps/nptl -I../sysdeps/pthread -I../sysdeps/gnu -I../sysdeps/unix/inet -I../sysdeps/unix/sysv -I../sysdeps/unix/x86_64 -I../sysdeps/unix -I../sysdeps/posix -I../sysdeps/x86_64/64 -I../sysdeps/x86_64/fpu/multiarch -I../sysdeps/x86_64/fpu -I../sysdeps/x86/fpu -I../sysdeps/x86_64/multiarch -I../sysdeps/x86_64 -I../sysdeps/x86/include -I../sysdeps/x86 -I../sysdeps/ieee754/float128 -I../sysdeps/ieee754/ldbl-96/include -I../sysdeps/ieee754/ldbl-96 -I../sysdeps/ieee754/dbl-64 -I../sysdeps/ieee754/flt-32 -I../sysdeps/wordsize-64 -I../sysdeps/ieee754 -I../sysdeps/generic -I.. -I../libio -I. -D_LIBC_REENTRANT -include /var/lib/laminar/run/glibcbot-x86_64-linux-gnu/10/build/compilers/x86_64-linux-gnu/glibc/x86_64-linux-gnu/libc-modules.h -DMODULE_NAME=libc -include ../include/libc-symbols.h -DPIC -DTOP_NAMESPACE=glibc -o /var/lib/laminar/run/glibcbot-x86_64-linux-gnu/10/build/compilers/x86_64-linux-gnu/glibc/x86_64-linux-gnu/catgets/open_catalog.o -MD -MP -MF /var/lib/laminar/run/glibcbot-x86_64-linux-gnu/10/build/compilers/x86_64-linux-gnu/glibc/x86_64-linux-gnu/catgets/open_catalog.o.dt -MT /var/lib/laminar/run/glibcbot-x86_64-linux-gnu/10/build/compilers/x86_64-linux-gnu/glibc/x86_64-linux-gnu/catgets/open_catalog.o
open_catalog.c: In function ‘__open_catalog’:
open_catalog.c:64:11: error: pointer ‘old_buf’ may be used after ‘realloc’ [-Werror=use-after-free]
64 | free (old_buf); \
| ^~~~~~~~~~~~~~
open_catalog.c:86:15: note: in expansion of macro ‘ENOUGH’
86 | ENOUGH (len);
| ^~~~~~
open_catalog.c:61:13: note: call to ‘realloc’ here
61 | buf = realloc (buf, bufmax); \
| ^~~~~~~~~~~~~~~~~~~~~
open_catalog.c:86:15: note: in expansion of macro ‘ENOUGH’
86 | ENOUGH (len);
| ^~~~~~
open_catalog.c:64:11: error: pointer ‘old_buf’ may be used after ‘realloc’ [-Werror=use-after-free]
64 | free (old_buf); \
| ^~~~~~~~~~~~~~
open_catalog.c:102:23: note: in expansion of macro ‘ENOUGH’
102 | ENOUGH (len);
| ^~~~~~
open_catalog.c:61:13: note: call to ‘realloc’ here
61 | buf = realloc (buf, bufmax); \
| ^~~~~~~~~~~~~~~~~~~~~
open_catalog.c:102:23: note: in expansion of macro ‘ENOUGH’
102 | ENOUGH (len);
| ^~~~~~
open_catalog.c:64:11: error: pointer ‘old_buf’ may be used after ‘realloc’ [-Werror=use-after-free]
64 | free (old_buf); \
| ^~~~~~~~~~~~~~
open_catalog.c:109:23: note: in expansion of macro ‘ENOUGH’
109 | ENOUGH (len);
| ^~~~~~
open_catalog.c:61:13: note: call to ‘realloc’ here
61 | buf = realloc (buf, bufmax); \
| ^~~~~~~~~~~~~~~~~~~~~
open_catalog.c:109:23: note: in expansion of macro ‘ENOUGH’
109 | ENOUGH (len);
| ^~~~~~
open_catalog.c:64:11: error: pointer ‘old_buf’ may be used after ‘realloc’ [-Werror=use-after-free]
64 | free (old_buf); \
| ^~~~~~~~~~~~~~
open_catalog.c:118:27: note: in expansion of macro ‘ENOUGH’
118 | ENOUGH (1);
| ^~~~~~
open_catalog.c:61:13: note: call to ‘realloc’ here
61 | buf = realloc (buf, bufmax); \
| ^~~~~~~~~~~~~~~~~~~~~
open_catalog.c:118:27: note: in expansion of macro ‘ENOUGH’
118 | ENOUGH (1);
| ^~~~~~
open_catalog.c:64:11: error: pointer ‘old_buf’ may be used after ‘realloc’ [-Werror=use-after-free]
64 | free (old_buf); \
| ^~~~~~~~~~~~~~
open_catalog.c:134:31: note: in expansion of macro ‘ENOUGH’
134 | ENOUGH (1);
| ^~~~~~
open_catalog.c:61:13: note: call to ‘realloc’ here
61 | buf = realloc (buf, bufmax); \
| ^~~~~~~~~~~~~~~~~~~~~
open_catalog.c:134:31: note: in expansion of macro ‘ENOUGH’
134 | ENOUGH (1);
| ^~~~~~
open_catalog.c:64:11: error: pointer ‘old_buf’ may be used after ‘realloc’ [-Werror=use-after-free]
64 | free (old_buf); \
| ^~~~~~~~~~~~~~
open_catalog.c:151:31: note: in expansion of macro ‘ENOUGH’
151 | ENOUGH (1);
| ^~~~~~
open_catalog.c:61:13: note: call to ‘realloc’ here
61 | buf = realloc (buf, bufmax); \
| ^~~~~~~~~~~~~~~~~~~~~
open_catalog.c:151:31: note: in expansion of macro ‘ENOUGH’
151 | ENOUGH (1);
| ^~~~~~
open_catalog.c:64:11: error: pointer ‘old_buf’ may be used after ‘realloc’ [-Werror=use-after-free]
64 | free (old_buf); \
| ^~~~~~~~~~~~~~
open_catalog.c:158:23: note: in expansion of macro ‘ENOUGH’
158 | ENOUGH (1);
| ^~~~~~
open_catalog.c:61:13: note: call to ‘realloc’ here
61 | buf = realloc (buf, bufmax); \
| ^~~~~~~~~~~~~~~~~~~~~
open_catalog.c:158:23: note: in expansion of macro ‘ENOUGH’
158 | ENOUGH (1);
| ^~~~~~
open_catalog.c:64:11: error: pointer ‘old_buf’ may be used after ‘realloc’ [-Werror=use-after-free]
64 | free (old_buf); \
| ^~~~~~~~~~~~~~
open_catalog.c:171:19: note: in expansion of macro ‘ENOUGH’
171 | ENOUGH (1);
| ^~~~~~
open_catalog.c:61:13: note: call to ‘realloc’ here
61 | buf = realloc (buf, bufmax); \
| ^~~~~~~~~~~~~~~~~~~~~
open_catalog.c:171:19: note: in expansion of macro ‘ENOUGH’
171 | ENOUGH (1);
| ^~~~~~
open_catalog.c:64:11: error: pointer ‘old_buf’ may be used after ‘realloc’ [-Werror=use-after-free]
64 | free (old_buf); \
| ^~~~~~~~~~~~~~
open_catalog.c:175:11: note: in expansion of macro ‘ENOUGH’
175 | ENOUGH (1);
| ^~~~~~
open_catalog.c:61:13: note: call to ‘realloc’ here
61 | buf = realloc (buf, bufmax); \
| ^~~~~~~~~~~~~~~~~~~~~
open_catalog.c:175:11: note: in expansion of macro ‘ENOUGH’
175 | ENOUGH (1);
| ^~~~~~
cc1: all warnings being treated as errors
make[3]: *** [../o-iterator.mk:9: /var/lib/laminar/run/glibcbot-x86_64-linux-gnu/10/build/compilers/x86_64-linux-gnu/glibc/x86_64-linux-gnu/catgets/open_catalog.o] Error 1
make[3]: Leaving directory '/var/lib/laminar/run/glibcbot-x86_64-linux-gnu/10/src/glibc/catgets'
make[2]: *** [Makefile:484: catgets/subdir_lib] Error 2
make[2]: Leaving directory '/var/lib/laminar/run/glibcbot-x86_64-linux-gnu/10/src/glibc'
make[1]: *** [Makefile:9: all] Error 2
make[1]: Leaving directory '/var/lib/laminar/run/glibcbot-x86_64-linux-gnu/10/build/compilers/x86_64-linux-gnu/glibc/x86_64-linux-gnu'
FAIL: compilers-x86_64-linux-gnu glibc x86_64-linux-gnu build
That's when calling the ENOUGH() macro:
56 #define ENOUGH(n) \
57 if (__glibc_unlikely (bufact + (n) >= bufmax)) \
58 { \
59 char *old_buf = buf; \
60 bufmax += (bufmax < 256 + (n)) ? 256 + (n) : bufmax; \
61 buf = realloc (buf, bufmax); \
62 if (__glibc_unlikely (buf == NULL)) \
63 { \
64 free (old_buf); \
65 return -1; \
66 } \
67 }
I don't spot an issue there. Maybe recent GCCs get confused over
__glibc_unlikely()?
Thanks,
Jan-Benedict
--
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^ permalink raw reply [flat|nested] 3+ messages in thread* Re: Wrong warning in open_catalog.c with trunk GCC?
2023-04-01 19:09 Wrong warning in open_catalog.c with trunk GCC? Jan-Benedict Glaw
@ 2023-04-01 19:18 ` Sam James
2023-04-01 20:20 ` Jan-Benedict Glaw
0 siblings, 1 reply; 3+ messages in thread
From: Sam James @ 2023-04-01 19:18 UTC (permalink / raw)
To: Jan-Benedict Glaw; +Cc: libc-alpha, marxin
[-- Attachment #1: Type: text/plain, Size: 11157 bytes --]
Jan-Benedict Glaw <jbglaw@lug-owl.de> writes:
> [[PGP Signed Part:Undecided]]
> Hi!
>
> With the CI builds, after supplying --disable-gcov to gcc-first, I see
> this while building glibc:
>
>
> x86_64-glibc-linux-gnu-gcc open_catalog.c -c -std=gnu11 -fgnu89-inline
> -g -O2 -Wall -Wwrite-strings -Wundef -Werror -fmerge-all-constants
> -frounding-math -fno-stack-protector -fno-common -Wstrict-prototypes
> -Wold-style-definition -fmath-errno -fPIE -ftls-model=initial-exec
> -DNLSPATH='"/usr/share/locale/%L/%N:/usr/share/locale/%L/LC_MESSAGES/%N:/usr/share/locale/%l/%N:/usr/share/locale/%l/LC_MESSAGES/%N:"'
> -I../include
> -I/var/lib/laminar/run/glibcbot-x86_64-linux-gnu/10/build/compilers/x86_64-linux-gnu/glibc/x86_64-linux-gnu/catgets
> -I/var/lib/laminar/run/glibcbot-x86_64-linux-gnu/10/build/compilers/x86_64-linux-gnu/glibc/x86_64-linux-gnu
> -I../sysdeps/unix/sysv/linux/x86_64/64
> -I../sysdeps/unix/sysv/linux/x86_64
> -I../sysdeps/unix/sysv/linux/x86/include
> -I../sysdeps/unix/sysv/linux/x86 -I../sysdeps/x86/nptl
> -I../sysdeps/unix/sysv/linux/wordsize-64 -I../sysdeps/x86_64/nptl
> -I../sysdeps/unix/sysv/linux/include -I../sysdeps/unix/sysv/linux
> -I../sysdeps/nptl -I../sysdeps/pthread -I../sysdeps/gnu
> -I../sysdeps/unix/inet -I../sysdeps/unix/sysv -I../sysdeps/unix/x86_64
> -I../sysdeps/unix -I../sysdeps/posix -I../sysdeps/x86_64/64
> -I../sysdeps/x86_64/fpu/multiarch -I../sysdeps/x86_64/fpu
> -I../sysdeps/x86/fpu -I../sysdeps/x86_64/multiarch -I../sysdeps/x86_64
> -I../sysdeps/x86/include -I../sysdeps/x86
> -I../sysdeps/ieee754/float128 -I../sysdeps/ieee754/ldbl-96/include
> -I../sysdeps/ieee754/ldbl-96 -I../sysdeps/ieee754/dbl-64
> -I../sysdeps/ieee754/flt-32 -I../sysdeps/wordsize-64
> -I../sysdeps/ieee754 -I../sysdeps/generic -I.. -I../libio -I.
> -D_LIBC_REENTRANT -include
> /var/lib/laminar/run/glibcbot-x86_64-linux-gnu/10/build/compilers/x86_64-linux-gnu/glibc/x86_64-linux-gnu/libc-modules.h
> -DMODULE_NAME=libc -include ../include/libc-symbols.h -DPIC
> -DTOP_NAMESPACE=glibc -o
> /var/lib/laminar/run/glibcbot-x86_64-linux-gnu/10/build/compilers/x86_64-linux-gnu/glibc/x86_64-linux-gnu/catgets/open_catalog.o
> -MD -MP -MF
> /var/lib/laminar/run/glibcbot-x86_64-linux-gnu/10/build/compilers/x86_64-linux-gnu/glibc/x86_64-linux-gnu/catgets/open_catalog.o.dt
> -MT
> /var/lib/laminar/run/glibcbot-x86_64-linux-gnu/10/build/compilers/x86_64-linux-gnu/glibc/x86_64-linux-gnu/catgets/open_catalog.o
> open_catalog.c: In function ‘__open_catalog’:
> open_catalog.c:64:11: error: pointer ‘old_buf’ may be used after ‘realloc’ [-Werror=use-after-free]
> 64 | free (old_buf); \
> | ^~~~~~~~~~~~~~
> open_catalog.c:86:15: note: in expansion of macro ‘ENOUGH’
> 86 | ENOUGH (len);
> | ^~~~~~
> open_catalog.c:61:13: note: call to ‘realloc’ here
> 61 | buf = realloc (buf, bufmax); \
> | ^~~~~~~~~~~~~~~~~~~~~
> open_catalog.c:86:15: note: in expansion of macro ‘ENOUGH’
> 86 | ENOUGH (len);
> | ^~~~~~
> open_catalog.c:64:11: error: pointer ‘old_buf’ may be used after ‘realloc’ [-Werror=use-after-free]
> 64 | free (old_buf); \
> | ^~~~~~~~~~~~~~
> open_catalog.c:102:23: note: in expansion of macro ‘ENOUGH’
> 102 | ENOUGH (len);
> | ^~~~~~
> open_catalog.c:61:13: note: call to ‘realloc’ here
> 61 | buf = realloc (buf, bufmax); \
> | ^~~~~~~~~~~~~~~~~~~~~
> open_catalog.c:102:23: note: in expansion of macro ‘ENOUGH’
> 102 | ENOUGH (len);
> | ^~~~~~
> open_catalog.c:64:11: error: pointer ‘old_buf’ may be used after ‘realloc’ [-Werror=use-after-free]
> 64 | free (old_buf); \
> | ^~~~~~~~~~~~~~
> open_catalog.c:109:23: note: in expansion of macro ‘ENOUGH’
> 109 | ENOUGH (len);
> | ^~~~~~
> open_catalog.c:61:13: note: call to ‘realloc’ here
> 61 | buf = realloc (buf, bufmax); \
> | ^~~~~~~~~~~~~~~~~~~~~
> open_catalog.c:109:23: note: in expansion of macro ‘ENOUGH’
> 109 | ENOUGH (len);
> | ^~~~~~
> open_catalog.c:64:11: error: pointer ‘old_buf’ may be used after ‘realloc’ [-Werror=use-after-free]
> 64 | free (old_buf); \
> | ^~~~~~~~~~~~~~
> open_catalog.c:118:27: note: in expansion of macro ‘ENOUGH’
> 118 | ENOUGH (1);
> | ^~~~~~
> open_catalog.c:61:13: note: call to ‘realloc’ here
> 61 | buf = realloc (buf, bufmax); \
> | ^~~~~~~~~~~~~~~~~~~~~
> open_catalog.c:118:27: note: in expansion of macro ‘ENOUGH’
> 118 | ENOUGH (1);
> | ^~~~~~
> open_catalog.c:64:11: error: pointer ‘old_buf’ may be used after ‘realloc’ [-Werror=use-after-free]
> 64 | free (old_buf); \
> | ^~~~~~~~~~~~~~
> open_catalog.c:134:31: note: in expansion of macro ‘ENOUGH’
> 134 | ENOUGH (1);
> | ^~~~~~
> open_catalog.c:61:13: note: call to ‘realloc’ here
> 61 | buf = realloc (buf, bufmax); \
> | ^~~~~~~~~~~~~~~~~~~~~
> open_catalog.c:134:31: note: in expansion of macro ‘ENOUGH’
> 134 | ENOUGH (1);
> | ^~~~~~
> open_catalog.c:64:11: error: pointer ‘old_buf’ may be used after ‘realloc’ [-Werror=use-after-free]
> 64 | free (old_buf); \
> | ^~~~~~~~~~~~~~
> open_catalog.c:151:31: note: in expansion of macro ‘ENOUGH’
> 151 | ENOUGH (1);
> | ^~~~~~
> open_catalog.c:61:13: note: call to ‘realloc’ here
> 61 | buf = realloc (buf, bufmax); \
> | ^~~~~~~~~~~~~~~~~~~~~
> open_catalog.c:151:31: note: in expansion of macro ‘ENOUGH’
> 151 | ENOUGH (1);
> | ^~~~~~
> open_catalog.c:64:11: error: pointer ‘old_buf’ may be used after ‘realloc’ [-Werror=use-after-free]
> 64 | free (old_buf); \
> | ^~~~~~~~~~~~~~
> open_catalog.c:158:23: note: in expansion of macro ‘ENOUGH’
> 158 | ENOUGH (1);
> | ^~~~~~
> open_catalog.c:61:13: note: call to ‘realloc’ here
> 61 | buf = realloc (buf, bufmax); \
> | ^~~~~~~~~~~~~~~~~~~~~
> open_catalog.c:158:23: note: in expansion of macro ‘ENOUGH’
> 158 | ENOUGH (1);
> | ^~~~~~
> open_catalog.c:64:11: error: pointer ‘old_buf’ may be used after ‘realloc’ [-Werror=use-after-free]
> 64 | free (old_buf); \
> | ^~~~~~~~~~~~~~
> open_catalog.c:171:19: note: in expansion of macro ‘ENOUGH’
> 171 | ENOUGH (1);
> | ^~~~~~
> open_catalog.c:61:13: note: call to ‘realloc’ here
> 61 | buf = realloc (buf, bufmax); \
> | ^~~~~~~~~~~~~~~~~~~~~
> open_catalog.c:171:19: note: in expansion of macro ‘ENOUGH’
> 171 | ENOUGH (1);
> | ^~~~~~
> open_catalog.c:64:11: error: pointer ‘old_buf’ may be used after ‘realloc’ [-Werror=use-after-free]
> 64 | free (old_buf); \
> | ^~~~~~~~~~~~~~
> open_catalog.c:175:11: note: in expansion of macro ‘ENOUGH’
> 175 | ENOUGH (1);
> | ^~~~~~
> open_catalog.c:61:13: note: call to ‘realloc’ here
> 61 | buf = realloc (buf, bufmax); \
> | ^~~~~~~~~~~~~~~~~~~~~
> open_catalog.c:175:11: note: in expansion of macro ‘ENOUGH’
> 175 | ENOUGH (1);
> | ^~~~~~
See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109170. When did you
build your GCC 13? Just now or a week or two ago?
> cc1: all warnings being treated as errors
> make[3]: *** [../o-iterator.mk:9: /var/lib/laminar/run/glibcbot-x86_64-linux-gnu/10/build/compilers/x86_64-linux-gnu/glibc/x86_64-linux-gnu/catgets/open_catalog.o] Error 1
> make[3]: Leaving directory '/var/lib/laminar/run/glibcbot-x86_64-linux-gnu/10/src/glibc/catgets'
> make[2]: *** [Makefile:484: catgets/subdir_lib] Error 2
> make[2]: Leaving directory '/var/lib/laminar/run/glibcbot-x86_64-linux-gnu/10/src/glibc'
> make[1]: *** [Makefile:9: all] Error 2
> make[1]: Leaving directory '/var/lib/laminar/run/glibcbot-x86_64-linux-gnu/10/build/compilers/x86_64-linux-gnu/glibc/x86_64-linux-gnu'
>
> FAIL: compilers-x86_64-linux-gnu glibc x86_64-linux-gnu build
>
>
> That's when calling the ENOUGH() macro:
>
> 56 #define ENOUGH(n) \
> 57 if (__glibc_unlikely (bufact + (n) >= bufmax)) \
> 58 { \
> 59 char *old_buf = buf; \
> 60 bufmax += (bufmax < 256 + (n)) ? 256 + (n) : bufmax; \
> 61 buf = realloc (buf, bufmax); \
> 62 if (__glibc_unlikely (buf == NULL)) \
> 63 { \
> 64 free (old_buf); \
> 65 return -1; \
> 66 } \
> 67 }
>
>
> I don't spot an issue there. Maybe recent GCCs get confused over
> __glibc_unlikely()?
>
> Thanks,
> Jan-Benedict
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^ permalink raw reply [flat|nested] 3+ messages in thread* Re: Wrong warning in open_catalog.c with trunk GCC?
2023-04-01 19:18 ` Sam James
@ 2023-04-01 20:20 ` Jan-Benedict Glaw
0 siblings, 0 replies; 3+ messages in thread
From: Jan-Benedict Glaw @ 2023-04-01 20:20 UTC (permalink / raw)
To: Sam James; +Cc: libc-alpha, marxin
[-- Attachment #1: Type: text/plain, Size: 1190 bytes --]
Hi Sam,
On Sat, 2023-04-01 20:18:26 +0100, Sam James <sam@gentoo.org> wrote:
> Jan-Benedict Glaw <jbglaw@lug-owl.de> writes:
> > With the CI builds, after supplying --disable-gcov to gcc-first, I see
> > this while building glibc:
[...]
> > open_catalog.c: In function ‘__open_catalog’:
> > open_catalog.c:64:11: error: pointer ‘old_buf’ may be used after ‘realloc’ [-Werror=use-after-free]
> > 64 | free (old_buf); \
> > | ^~~~~~~~~~~~~~
> > open_catalog.c:86:15: note: in expansion of macro ‘ENOUGH’
> > 86 | ENOUGH (len);
> > | ^~~~~~
> > open_catalog.c:61:13: note: call to ‘realloc’ here
> > 61 | buf = realloc (buf, bufmax); \
> > | ^~~~~~~~~~~~~~~~~~~~~
[...]
>
> See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109170. When did you
> build your GCC 13? Just now or a week or two ago?
Not sure, but obviously from before that fix got committed. But nice
to see that others catch these early issues as well.
Thanks a lot!
Jan-Benedict
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2023-04-01 19:09 Wrong warning in open_catalog.c with trunk GCC? Jan-Benedict Glaw
2023-04-01 19:18 ` Sam James
2023-04-01 20:20 ` Jan-Benedict Glaw
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