* [Bug general/29093] New: clang fails to compile 0.187: error.c:50:17:
@ 2022-04-26 17:33 yuri at tsoft dot com
2022-04-26 17:34 ` [Bug general/29093] clang fails to compile 0.187: error: format string is not a string literal yuri at tsoft dot com
2022-04-26 18:04 ` mark at klomp dot org
0 siblings, 2 replies; 3+ messages in thread
From: yuri at tsoft dot com @ 2022-04-26 17:33 UTC (permalink / raw)
To: elfutils-devel
https://sourceware.org/bugzilla/show_bug.cgi?id=29093
Bug ID: 29093
Summary: clang fails to compile 0.187: error.c:50:17:
Product: elfutils
Version: unspecified
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: general
Assignee: unassigned at sourceware dot org
Reporter: yuri at tsoft dot com
CC: elfutils-devel at sourceware dot org
Target Milestone: ---
> cc -D_GNU_SOURCE -DHAVE_CONFIG_H -DLOCALEDIR='"/usr/local/share/locale"' -I. -I.. -I. -I. -I../lib -I.. -I./../libelf -fno-omit-frame-pointer -I/usr/local/include -std=gnu99 -Wall -Wshadow -Wformat=2 -Wold-style-definition -Wstrict-prototypes -Wnull-dereference -Wimplicit-fallthrough -Werror -Wunused -Wextra -fPIC -D_FORTIFY_SOURCE=3 -O2 -pipe -fno-omit-frame-pointer -I/usr/local/share/gnulib/lib -Wno-null-dereference -Wno-unused-value -DFREEBSD_HAS_MEMPCPY -fstack-protector-strong -fno-strict-aliasing -MT obstack_printf.o -MD -MP -MF .deps/obstack_printf.Tpo -c -o obstack_printf.o obstack_printf.c
> error.c:50:17: error: format string is not a string literal [-Werror,-Wformat-nonliteral]
> verr(status, format, ap);
> ^~~~~~
> error.c:52:18: error: format string is not a string literal [-Werror,-Wformat-nonliteral]
> verrx(status, format, ap);
> ^~~~~~
> error.c:55:10: error: format string is not a string literal [-Werror,-Wformat-nonliteral]
> vwarn(format, ap);
> ^~~~~~
> error.c:57:11: error: format string is not a string literal [-Werror,-Wformat-nonliteral]
> vwarnx(format, ap);
> ^~~~~~
> 4 errors generated.
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* [Bug general/29093] clang fails to compile 0.187: error: format string is not a string literal
2022-04-26 17:33 [Bug general/29093] New: clang fails to compile 0.187: error.c:50:17: yuri at tsoft dot com
@ 2022-04-26 17:34 ` yuri at tsoft dot com
2022-04-26 18:04 ` mark at klomp dot org
1 sibling, 0 replies; 3+ messages in thread
From: yuri at tsoft dot com @ 2022-04-26 17:34 UTC (permalink / raw)
To: elfutils-devel
https://sourceware.org/bugzilla/show_bug.cgi?id=29093
yuri at tsoft dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|clang fails to compile |clang fails to compile
|0.187: error.c:50:17: |0.187: error: format string
| |is not a string literal
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* [Bug general/29093] clang fails to compile 0.187: error: format string is not a string literal
2022-04-26 17:33 [Bug general/29093] New: clang fails to compile 0.187: error.c:50:17: yuri at tsoft dot com
2022-04-26 17:34 ` [Bug general/29093] clang fails to compile 0.187: error: format string is not a string literal yuri at tsoft dot com
@ 2022-04-26 18:04 ` mark at klomp dot org
1 sibling, 0 replies; 3+ messages in thread
From: mark at klomp dot org @ 2022-04-26 18:04 UTC (permalink / raw)
To: elfutils-devel
https://sourceware.org/bugzilla/show_bug.cgi?id=29093
Mark Wielaard <mark at klomp dot org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |mark at klomp dot org
--- Comment #1 from Mark Wielaard <mark at klomp dot org> ---
This is in fallback code in case the platform doesn't have error.h, but does
have err.h.
This seems to be a difference/bug between gcc and clang -Wformat-nonliteral.
Clang implements this mostly the same way as GCC, but there is a difference for
functions that accept a va_list argument (for example, vprintf). GCC does not
emit -Wformat-nonliteral warning for calls to such functions.
You might be able to fix this by annotating the error function itself.
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2022-04-26 17:33 [Bug general/29093] New: clang fails to compile 0.187: error.c:50:17: yuri at tsoft dot com
2022-04-26 17:34 ` [Bug general/29093] clang fails to compile 0.187: error: format string is not a string literal yuri at tsoft dot com
2022-04-26 18:04 ` mark at klomp dot org
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