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3 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Joseph Myers
|
2084e7ca4d |
Add macros for diagnostic control, use for scanf %a tests.
In <https://sourceware.org/ml/libc-alpha/2014-11/msg00326.html>, Roland requested internal macros for use of "#pragma GCC diagnostic". This patch adds such macros and uses them to disable -Wformat warnings for some code testing GNU scanf %as where GCC expects C99 scanf %a (several other stdio tests currently use -Wno-format to disable warnings). Limitations in GCC's diagnostic pragmas require separate macros before and after the code generating the warnings, rather than a single macro taking that code as an argument. The macros are named DIAG_*_NEEDS_COMMENT to emphasise to reviewers the need for a comment accompanying any use of them (such comments may however just appear once for several uses of the macros for the same issue in the same file). I put a GCC version in the arguments to DIAG_IGNORE_NEEDS_COMMENT, as that seems something useful to grep for when obsoleting support for an old GCC version and needing to decide if warning-disabling code is still relevant. These macros should be usable for replacing existing -Wno-* use in makefiles (as also suggested by Roland), though I have no plans to work on that (only on use of the macros in cases where warnings are currently present that need disabling to use -Werror). Tested for x86_64. * include/libc-internal.h (DIAG_PUSH_NEEDS_COMMENT): New macro. (DIAG_POP_NEEDS_COMMENT): Likewise. (_DIAG_STR1): Likewise. (_DIAG_STR): Likewise. (DIAG_IGNORE_NEEDS_COMMENT): Likewise. * stdio-common/bug21.c: Include <libc-internal.h>. (do_test): Disable -Wformat around call to sscanf. * stdio-common/scanf14.c: Include <libc-internal.h>. (main): Disable -Wformat around some calls to scanf functions. |
||
Jakub Jelinek
|
ad8a551196 |
* libio/stdio.h (vscanf): Fix -std=c99 redirect.
* stdio-common/Makefile (tests): Add scanf16 and scanf17. (CFLAGS-scanf17.c): New. * stdio-common/scanf14.c (main): Add fscanf and scanf tests. * stdio-common/scanf15.c (main): Likewise. * stdio-common/scanf16.c: New test. * stdio-common/scanf17.c: New test. 2008-05-24 Jakub Jelinek <jakub@redhat.com> * libio/stdio.h (vscanf): Fix -std=c99 redirect. * stdio-common/Makefile (tests): Add scanf16 and scanf17. (CFLAGS-scanf17.c): New. * stdio-common/scanf14.c (main): Add fscanf and scanf tests. * stdio-common/scanf15.c (main): Likewise. * stdio-common/scanf16.c: New test. * stdio-common/scanf17.c: New test. |
||
Ulrich Drepper
|
874aa52349 |
* include/stdio.h (__isoc99_fscanf, __isoc99_scanf,
__isoc99_sscanf, __isoc99_vscanf): New prototypes.
(__isoc99_vsscanf, __isoc99_vfscanf): New prototypes, add
libc_hidden_proto.
* include/wchar.h (__isoc99_fwscanf, __isoc99_wscanf,
__isoc99_swscanf, __isoc99_vwscanf): New prototypes.
(__isoc99_vswscanf, __isoc99_vfwscanf): New prototypes,
add libc_hidden_proto.
* libio/stdio.h (fscanf, scanf, sscanf, vfscanf, vscanf,
vsscanf): Redirect to __isoc99_* if strict ISO C99 or POSIX
conformance requested.
* wcsmbs/wchar.h (fwscanf, wscanf, swscanf, vfwscanf, vwscanf,
vswscanf): Redirect to __isoc99_* if strict ISO C99 or POSIX
conformance requested.
* libio/bits/stdio-ldbl.h (fscanf, scanf, sscanf, vfscanf, vscanf,
vsscanf): Redirect to __nldbl___isoc99_* if strict ISO C99 or POSIX
conformance requested.
* wcsmbs/bits/wchar-ldbl.h (fwscanf, wscanf, swscanf, vfwscanf,
vwscanf, vswscanf): Redirect to __nldbl___isoc99_* if strict
ISO C99 or POSIX conformance requested.
* stdio-common/Versions (libc): Export __isoc99_scanf@@GLIBC_2.7,
__isoc99_vscanf@@GLIBC_2.7, __isoc99_fscanf@@GLIBC_2.7,
__isoc99_vfscanf@@GLIBC_2.7, __isoc99_sscanf@@GLIBC_2.7
and __isoc99_vsscanf@@GLIBC_2.7.
* stdio-common/Makefile (routines): Add isoc99_scanf, isoc99_vscanf,
isoc99_fscanf, isoc99_vfscanf, isoc99_sscanf and isoc99_vsscanf.
(tests): Add scanf14.
(CFLAGS-vfprintf.c, CFLAGS-fprintf.c, CFLAGS-printf.c,
CFLAGS-vfwprintf.c, CFLAGS-vfscanf.c, CFLAGS-vfwscanf.c,
CFLAGS-fscanf.c, CFLAGS-scanf.c, CFLAGS-isoc99_vfscanf.c,
CFLAGS-isoc99_vscanf.c, CFLAGS-isoc99_fscanf.c,
CFLAGS-isoc99_scanf.c): Add $(exceptions).
(CFLAGS-scanf15.c): Add various -I paths to prevent the compiler
from using internal headers.
* wcsmbs/Versions (libc): Export __isoc99_wscanf@@GLIBC_2.7,
__isoc99_vwscanf@@GLIBC_2.7, __isoc99_fwscanf@@GLIBC_2.7,
__isoc99_vfwscanf@@GLIBC_2.7, __isoc99_swscanf@@GLIBC_2.7
and __isoc99_vswscanf@@GLIBC_2.7.
* wcsmbs/Makefile (routines): Add isoc99_wscanf, isoc99_vwscanf,
isoc99_fwscanf, isoc99_vfwscanf, isoc99_swscanf and isoc99_vswscanf.
(CFLAGS-isoc99_wscanf.c, CFLAGS-isoc99_fwscanf.c,
CFLAGS-isoc99_vwscanf.c, CFLAGS-isoc99_vfwscanf.c): Add $(exceptions).
(CPPFLAGS): Add -D_IO_MTSAFE_IO if needed.
* stdio-common/isoc99_scanf.c: New file.
* stdio-common/isoc99_vsscanf.c: New file.
* stdio-common/isoc99_vscanf.c: New file.
* stdio-common/isoc99_vfscanf.c: New file.
* stdio-common/isoc99_fscanf.c: New file.
* stdio-common/isoc99_sscanf.c: New file.
* wcsmbs/isoc99_fwscanf.c: New file.
* wcsmbs/isoc99_vswscanf.c: New file.
* wcsmbs/isoc99_swscanf.c: New file.
* wcsmbs/isoc99_wscanf.c: New file.
* wcsmbs/isoc99_vwscanf.c: New file.
* wcsmbs/isoc99_vfwscanf.c: New file.
* libio/libio.h (_IO_FLAGS2_SCANF_STD): Define.
* libio/libioP.h (_IO_acquire_lock_clear_flags2_fct): Also
clear _IO_FLAGS2_SCANF_STD bit from _flags2.
* stdio-common/vfscanf.c (_IO_vfscanf_internal): Don't
handle %as, %aS and %a[ if _IO_FLAGS2_SCANF_STD is set in _flags2.
* stdio-common/scanf14.c: New test.
* stdio-common/scanf15.c: New test.
* sysdeps/ieee754/ldbl-opt/Makefile (libnldbl-calls): Add
isoc99_scanf, isoc99_fscanf, isoc99_sscanf,
isoc99_vscanf, isoc99_vfscanf, isoc99_vsscanf,
isoc99_wscanf, isoc99_fwscanf, isoc99_swscanf,
isoc99_vwscanf, isoc99_vfwscanf and isoc99_vswscanf.
* sysdeps/ieee754/ldbl-opt/Versions (libc): Export
__nldbl___isoc99_scanf@@GLIBC_2.7,
__nldbl___isoc99_fscanf@@GLIBC_2.7,
__nldbl___isoc99_sscanf@@GLIBC_2.7,
__nldbl___isoc99_vscanf@@GLIBC_2.7,
__nldbl___isoc99_vfscanf@@GLIBC_2.7,
__nldbl___isoc99_vsscanf@@GLIBC_2.7,
__nldbl___isoc99_wscanf@@GLIBC_2.7,
__nldbl___isoc99_fwscanf@@GLIBC_2.7,
__nldbl___isoc99_swscanf@@GLIBC_2.7,
__nldbl___isoc99_vwscanf@@GLIBC_2.7,
__nldbl___isoc99_vfwscanf@@GLIBC_2.7
and __nldbl___isoc99_vswscanf@@GLIBC_2.7.
* sysdeps/ieee754/ldbl-opt/nldbl-compat.h (__isoc99_scanf,
__isoc99_fscanf, __isoc99_sscanf, __isoc99_vscanf,
__isoc99_vfscanf, __isoc99_vsscanf, __isoc99_wscanf,
__isoc99_fwscanf, __isoc99_swscanf, __isoc99_vwscanf,
__isoc99_vfwscanf, __isoc99_vswscanf): Add NLDBL_DECL.
* sysdeps/ieee754/ldbl-opt/nldbl-compat.c
(__nldbl___isoc99_scanf, __nldbl___isoc99_fscanf,
__nldbl___isoc99_sscanf, __nldbl___isoc99_vscanf,
__nldbl___isoc99_vfscanf, __nldbl___isoc99_vsscanf,
__nldbl___isoc99_wscanf, __nldbl___isoc99_fwscanf,
__nldbl___isoc99_swscanf, __nldbl___isoc99_vwscanf,
__nldbl___isoc99_vfwscanf, __nldbl___isoc99_vswscanf): New
functions.
* sysdeps/ieee754/ldbl-opt/nldbl-isoc99_vfscanf.c: New file.
* sysdeps/ieee754/ldbl-opt/nldbl-isoc99_swscanf.c: New file.
* sysdeps/ieee754/ldbl-opt/nldbl-isoc99_vwscanf.c: New file.
* sysdeps/ieee754/ldbl-opt/nldbl-isoc99_wscanf.c: New file.
* sysdeps/ieee754/ldbl-opt/nldbl-isoc99_scanf.c: New file.
* sysdeps/ieee754/ldbl-opt/nldbl-isoc99_sscanf.c: New file.
* sysdeps/ieee754/ldbl-opt/nldbl-isoc99_vsscanf.c: New file.
* sysdeps/ieee754/ldbl-opt/nldbl-isoc99_fwscanf.c: New file.
* sysdeps/ieee754/ldbl-opt/nldbl-isoc99_vfwscanf.c: New file.
* sysdeps/ieee754/ldbl-opt/nldbl-isoc99_vswscanf.c: New file.
* sysdeps/ieee754/ldbl-opt/nldbl-isoc99_vscanf.c: New file.
* sysdeps/ieee754/ldbl-opt/nldbl-isoc99_fscanf.c: New file.
* stdio-common/Makefile (tests): Add scanf13.
(scanf13-ENV): New.
* stdio-common/vfscanf.c (_IO_vfscanf_internal): Handle
m modifier followed by l.
(STRING_ARG): Add width argument.
(_IO_vfscanf_internal) <case L_('c')>: Handle %mc.
<case L_('C')>: Handle %mlc and %mC.
<case L_('s'), case L_('S'), case L_('[')>: Adjust STRING_ARG
arguments.
* stdio-common/scanf13.c: New test.
* libio/libioP.h (_IO_acquire_lock_clear_flags2_fct): Clear
the _IO_FLAGS2_FORTIFY bit from _flags2 rather than _flags.
type and __THROW marker of splice, vmsplice, and tee.
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