.so files can be stripped such that they contain no "regular" symbol
table but do still contain the "dynamic" symbol table, this is pretty
typical for .so files. QB64-PE is supposed to check both tables when
linking against a .so file, but a bug in ab0c2b18 meant that the second
run of nm with the -D flag to check the dynamic symbol table no longer
happens. The fix is to introduce a new output file for the dynamic run
so that they are handled separately in terms of caching the result.
A new test .so file that only contains a dynamic symbol table was added
to avoid this in the future.
Fixes: #301
Current the -o flag will strip any "extension" on the provided filename,
which is fairly problimatic on Linux and Mac OS since those executes do
not have other extensions and names like "foobar.v1" will get the ".v1"
stripped off. This can happen on Windows as well if you leave off the
.exe (QB64-PE will add it for you, but also strip off the existing
extension).
QB64-PE stripping off the ".exe" when provided that on Linux and Mac OS
might actually be useful behavior people are relying on (so that they
don't need to provide different names when compiling on Linux/Mac OS) so
we are preserving that and still removing the extension if it is exactly
"EXE", otherwise we now leave it in place.
Fixes: #297
The new optional arguments for functions broke _RGB32() because it uses
some custom flags ('overloaded' and 'minargs' on the id Type) to control
its parameter passing. You are allowed passing any number from 1 to 4 args
to `func__rgb32` and there are 4 overloaded C++ functions that will get
picked from. This is different from how this typically would work, with
all 4 parameters always passed and an extra argument to specify the
parameters that were passed.
Rather than change `func__rgb32` I simply adjusted the optional argument
logic to account for the flags used by `_RGB32()` - if the `overloaded`
flag is set, then we don't need to add extra `NULL` parameters for any
parameter that wasn't specified in the argument list. Instead we simply
don't emit anything for those.
Currently functions only have very limited optional argument support,
this expands it so that we can have more complex sets of optional
arguments for functions, such as multiple arguments where not all need
to be provided. This will be used in the future for some upcoming
functionality.
Note that this does not support any generic optional argument format,
the commas always have to be provided unless an optional argument is at
the end of the parameter list. Thus, if you have a format with two
optional arguments and you want to omit the second, then you need to call
it as 'foo(2, , 3)`, rather than `foo(2, 3)`. This is important for
avoiding ambiguous situations, and is how many SUBs currently function.
The two functions that violate that requirement are INSTR() and
_INSTRREV(), which use the format `[?],?,?` and allow omitting the comma
for the first argument. This format is simply handled as a special case.
Fixes: #303