|
4583f267
|
2020-08-30T13:43:50
|
|
Relicense to MIT
The licensing note in the configure script has been reworked, similarly
to how libvpx did it (they were also based on FFmpeg's configure script
and also use a more permissive license).
|
|
2bb5f487
|
2019-07-25T20:34:46
|
|
Fix gcc warning: ISO C forbids return between function pointer and void *
Instead of using compiler specific pragma to disable particular warning,
rewrite code which cast from function pointer to data pointer according to
POSIX dlopen() documentation. This also fix compile warning under MSVC.
According to the ISO C standard, casting between function
pointers and 'void *', as done above, produces undefined results.
POSIX.1-2003 and POSIX.1-2008 accepted this state of affairs and
proposed the following workaround:
*(void **) (&cosine) = dlsym(handle, "cos");
This (clumsy) cast conforms with the ISO C standard and will
avoid any compiler warnings.
|
|
|
63d7bda4
|
2019-01-29T22:57:04
|
|
Implement support for dlsym() with RTLD_DEFAULT and RTLD_NEXT
dlsym() with RTLD_DEFAULT handle behaves in same way like with global handle
returned by dlopen() with NULL file name.
dlsym() with RTLD_NEXT handle search for next loaded module which provides
specified symbol. "Next" means module which in EnumProcessModules() result
after the module which called dlsym().
To get caller function of dlsym() use _ReturnAddress() intrinsic. To get
module where is caller function use the fact that HMODULE is the same value
as the module's base address.
When compiling under gcc, defines _ReturnAddress() macro via gcc's builtin
as it does not provide MSC's specific _ReturnAddress() intrinsic.
Added tests demonstrate that both RTLD_DEFAULT and RTLD_NEXT are working as
expected.
|