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Re: [ping] [PATCH] Different outputs affected by locale
- From: Yao Qi <yao at codesourcery dot com>
- To: Pedro Alves <palves at redhat dot com>
- Cc: Tom Tromey <tromey at redhat dot com>, Joel Brobecker <brobecker at adacore dot com>, <gdb-patches at sourceware dot org>
- Date: Thu, 12 Jun 2014 22:37:38 +0800
- Subject: Re: [ping] [PATCH] Different outputs affected by locale
- Authentication-results: sourceware.org; auth=none
- References: <1401192650-29688-1-git-send-email-yao at codesourcery dot com> <538EAEE5 dot 2080708 at codesourcery dot com> <20140604124708 dot GR4289 at adacore dot com> <538F1CC3 dot 9090605 at codesourcery dot com> <87oay8a0t6 dot fsf at fleche dot redhat dot com> <538F803A dot 9020007 at redhat dot com> <538FE412 dot 1050806 at codesourcery dot com> <53903119 dot 6000204 at redhat dot com> <53903EE5 dot 8090107 at codesourcery dot com> <539042A2 dot 4050409 at redhat dot com> <539571C6 dot 40605 at codesourcery dot com> <53958862 dot 5020106 at redhat dot com> <5397BCEC dot 8080300 at codesourcery dot com> <539990BD dot 9020504 at redhat dot com>
On 06/12/2014 07:36 PM, Pedro Alves wrote:
> What does "show host-charset" show on Windows, before and after
> you make GDB pick LC_CTYPE=C from the environment (with the
> setlocale gnulib module)?
GDB on Windows gets host charset from GetACP(), in
charset.c:_initialize_charset ().
#elif defined (USE_WIN32API)
{
/* "CP" + x<=5 digits + paranoia. */
static char w32_host_default_charset[16];
snprintf (w32_host_default_charset, sizeof w32_host_default_charset,
"CP%d", GetACP());
auto_host_charset_name = w32_host_default_charset;
auto_target_charset_name = auto_host_charset_name;
}
#endif
GetACP doesn't depend on locale, so I don't think LC_CTYPE=C affects the
host-charset in GDB. However, I do this:
printf ("%d\n", GetACP());
setlocale (LC_CTYPE, "");
printf ("%d\n", GetACP());
setlocale (LC_CTYPE, "C");
printf ("%d\n", GetACP());
On my Windows machine, 1252 is printed three times.
>
> (Ideally, the wchar tests would actually iterate testing GDB
> behaves as expected with different values of LC_CTYPE, etc. set
> in the environment. With all other tests assuming ASCII as set
> by default by the testsuite framework.)
On the condition that we know or enumerate the expected output for
wchars under each LC_CTYPE on different host (or OS). Test like this
is out of the scope of GDB (or debugger) testing, IMO.
--
Yao (éå)