在 2/8/22 17:43, Pali Rohár 写道:
Well, I have tried to compile just a simple executable application with
"snprintf" call which do not check return value of snprintf function and
with LTO built of CRT was _vscprintf call fully eliminated without any
undefined reference issues and application worked
On Tue, 8 Feb 2022, LIU Hao wrote:
在 2/8/22 18:45, Martin Storsjö 写道:
While clang does match MSVC with regards to aggregate returns, when
run in MSVC mode, it matches GCC when run in mingw mode - and the
same behaviour extends to arm/aarch64 too.
Thus, this workaround needs to be enabled on al
在 2/8/22 18:45, Martin Storsjö 写道:
While clang does match MSVC with regards to aggregate returns, when
run in MSVC mode, it matches GCC when run in mingw mode - and the
same behaviour extends to arm/aarch64 too.
Thus, this workaround needs to be enabled on all architectures,
not only on x86.
Si
在 2/8/22 21:12, Martin Storsjö 写道:
Using __attribute__((pure)) can conflict with a user-defined macro
"pure" - the correct form for system headers would use "__pure__"
instead. We have an existing macro that expands to this (with some
compiler variance handling too).
Signed-off-by: Martin Storsj
Using __attribute__((pure)) can conflict with a user-defined macro
"pure" - the correct form for system headers would use "__pure__"
instead. We have an existing macro that expands to this (with some
compiler variance handling too).
Signed-off-by: Martin Storsjö
---
mingw-w64-headers/crt/stdio.h
While clang does match MSVC with regards to aggregate returns, when
run in MSVC mode, it matches GCC when run in mingw mode - and the
same behaviour extends to arm/aarch64 too.
Thus, this workaround needs to be enabled on all architectures,
not only on x86.
Signed-off-by: Martin Storsjö
---
min
On Tuesday 08 February 2022 11:22:12 Martin Storsjö wrote:
> On Tue, 8 Feb 2022, LIU Hao wrote:
>
> > 在 2/8/22 16:33, Martin Storsjö 写道:
> > > On Sun, 6 Feb 2022, Pali Rohár wrote:
> > >
> > > > Mark _vscprintf() and _scprintf() functions with attribute pure as their
> > > > return value depends
On Sun, 6 Feb 2022, Pali Rohár wrote:
Currently v*scanf functions are broken and crash when are called with more
than 30 arguments in va_list. This is because va_list v*scanf functions are
redirected to variadic *scanf functions and this redirect implemented in
scanf.S file has fixed limit for 3
On Tue, 8 Feb 2022, LIU Hao wrote:
在 2/8/22 16:33, Martin Storsjö 写道:
On Sun, 6 Feb 2022, Pali Rohár wrote:
Mark _vscprintf() and _scprintf() functions with attribute pure as their
return value depends only on passed arguments.
In function __ms_vsnprintf() check only for n==0 and move _vscpr
在 2/8/22 16:33, Martin Storsjö 写道:
On Sun, 6 Feb 2022, Pali Rohár wrote:
Mark _vscprintf() and _scprintf() functions with attribute pure as their
return value depends only on passed arguments.
In function __ms_vsnprintf() check only for n==0 and move _vscprintf() call
at the end of function. T
On Sun, 6 Feb 2022, Pali Rohár wrote:
Import library libcrtdll.a (for crtdll.dll runtime library) compiled during
mingw-w64 build process is currently broken and cannot be used for linking
executable applications.
Trying to do it results in following linker errors:
/usr/bin/i686-w64-mingw32-l
On Sun, 6 Feb 2022, Pali Rohár wrote:
MinGW-w64 has same startup files for crtdll.dll and msvcrt.dll and defining
-D__CRTDLL__ or -D__MSVCRT__ has no effect on built *crt*.o files, they are
same. So build startup files only once and create other as copy from the
first one. Also remove -D__CRTDLL
On Sun, 6 Feb 2022, Pali Rohár wrote:
Mark _vscprintf() and _scprintf() functions with attribute pure as their
return value depends only on passed arguments.
In function __ms_vsnprintf() check only for n==0 and move _vscprintf() call
at the end of function. This allows LTO to optimize out _vscp
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