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Recent GCC -Wformat-overflow= changes result in some printf tests
failing to build, because those tests are deliberately testing the
handling of formats writing more than INT_MAX characters and the
handling of NULL arguments to the %s format, which GCC now warns
about. This patch duly disables -Wformat-overflow= for the relevant
calls to printf functions.
Tested with build-many-glibcs.py with GCC mainline for
aarch64-linux-gnu.
* stdio-common/bug22.c: Include <libc-diag.h>.
(do_test): Disable -Wformat-overflow= warnings around fprintf
calls outputting more than INT_MAX characters.
* stdio-common/tst-printf.c: Disable -Wformat-overflow= warnings
around printf call with NULL %s argument.
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The older Tilera platform (tilepro) needs just a hair over 30 seconds
to run this on one core.
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With help from Paul Eggert, Carlos O'Donell, and Roland McGrath.
* stdio-common/printf-parse.h (read_int): Change return type to
'int', return -1 on INT_MAX overflow.
* stdio-common/vfprintf.c (vfprintf): Validate width and precision
against overflow of INT_MAX. Set errno to EOVERFLOW when 'done'
overflows INT_MAX. Check for overflow of in-format-string precision
values properly. Use EOVERFLOW rather than ERANGE throughout. Use
SIZE_MAX not INT_MAX for integer overflow test.
* stdio-common/printf-parsemb.c: If read_int signals an overflow,
skip the construct in the format string but do not record anything.
* stdio-common/bug22.c: Adjust to test both width/prevision
INT_MAX overflow as well as total length INT_MAX overflow. Check
explicitly for proper errno values.
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2007-12-08 Ulrich Drepper <drepper@redhat.com>
[BZ #5424]
* stdio-common/vfprintf.c: Do not overflow when adding to done.
* stdio-common/Makefile (tests): Add bug22.
* stdio-common/bug22.c: New file.
[BZ #5451]
* time/getdate.c: Fix filling in default values.
* time/bug-getdate1.c: New file.
* time/Makefile: Add rules to build and run bug-getdate1.
* iconvdata/ebcdic-is-friss.c: Use 8bit-gap instead of 8bit-generic.
* iconvdata/ebcdic-es.c: Likewise.
* iconvdata/ebcdic-es-a.c: Likewise.
* iconvdata/ebcdic-uk.c: Likewise.
* iconvdata/iso8859-16.c: Likewise.
* iconvdata/viscii.c: Likewise.
* iconvdata/iso8859-9e.c: Likewise.
* iconvdata/Makefile: Adjust appropriately.
[BZ #5428]
* wcsmbs/wchar.h: Unconditionally undefine __need_mbstate and
__need_wint_t.
* iconvdata/gconv-modules: Likewise.
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