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Re: [Bug win32/14529] Make gdb capable of JIT-debugging on W32
- From: LRN <lrn1986 at gmail dot com>
- To: gdb-patches at sourceware dot org
- Date: Tue, 11 Sep 2012 22:26:40 +0400
- Subject: Re: [Bug win32/14529] Make gdb capable of JIT-debugging on W32
- References: <503E575D.1000608@gmail.com> <83y5kvp0za.fsf@gnu.org> <5040DA38.2070802@gmail.com> <504D4EE1.5010507@gmail.com> <504F811C.8000409@redhat.com>
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On 11.09.2012 22:21, Pedro Alves wrote:
> On 09/10/2012 03:22 AM, LRN wrote:
>>
>> +# This feature requires 3 things: +# 1) windows.h with
>> SetEvent() and CloseHandle() prototypes +# 2) inttypes.h with
>> uintptr_t type defined +# 3) libkernel32 that exports SetEvent()
>> and CloseHandle() +# Because functions in (1) use stdcall on W32,
>> it's impossible to +# check them with AC_SEARCH_LIBS. +# Until a
>> more elaborate check is written (compile_ifelse or something), +#
>> users will have to enable this feature explicitly. +# However,
>> this feature is enabled by default for platforms where it should
>> +# normally work (MinGW and Cygwin). +
>> +AC_ARG_ENABLE(w32-jitdbg, +AS_HELP_STRING([--enable-w32-jitdbg],
>> [enable W32 JIT debugging]), + [case $enableval in + yes)
>> w32_jitdbg=1 ;; + no) w32_jitdbg=0 ;; + *) +
>> AC_MSG_ERROR([bad value $enableval for --enable-w32-jitdbg]) ;; +
>> esac], + [w32_jitdbg=$default_w32_jitdbg])
>> +AC_DEFINE_UNQUOTED(W32_JITDBG, $w32_jitdbg, + [Define to 1 if
>> W32 JIT debugging support is enabled, to 0 otherwise]) +
>
> When would you ever want to --enable-w32-jitdbg on anything other
> than Windows, where it is enabled by default?
>
No idea. But i like things to have built-in overrides, in case you
need to do something that the developer have not foresaw. Better than
patching gdb in that case.
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