crt: Fix _adj_fdiv_m* and _adj_fdivr_m* symbols
CRT library functions _adj_fdiv_m* and _adj_fdivr_m* have custom calling
convention. These functions take two arguments. First argument is passed in
x87 st(0) register and second argument on the stack (either 4 or 8 bytes).
Function itself pops the stack (like stdcall convention) and return value
is stored in x87 st(0) register.
CL.EXE compiler when invoked with flag /QIfdiv generates calls to these
functions. Generated symbol names are without @SIZE suffix decoration.
So for compatibility with msvc, do not decorate these symbols with @SIZE
suffix (the suffix used for stdcall) in all def files.
Note that neither gcc, nor clang does not provide a way to define C
function declaration with this calling convention, so currently the only
way how to call these functions from the assembler or via gcc inline
assembly in C/C++. And therefore mingw-w64 does not provide declaration for
these functions in header files.
Signed-off-by: LIU Hao <lh_mouse@126.com>
8 files changed
