Passing MAP_FIXED to mmap causes already mapped pages in the requested
region to be replaced. On Mac OS X this caused pages for JIT-generatd
code to appear in the memory range previously auto-allocated for the RAM
of the emulated machine. This led to a hang at boot time. The same problem
can probably occur on FreeBSD, but not on Linux since MAP_32BIT is used
there instead of MAP_FIXED.
The solution is to not use MAP_FIXED, but instead rely on the OS honoring
the hinted address which is below 4 GB: we don't need an exact match,
just a low address.
some code additions for future use ;).
please gcc user test this as i don't have opportunity to test it myself i only use reference code to.
git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@7247 8ced0084-cf51-0410-be5f-012b33b47a6e
Fixes issue 3913.
The underlying problem, however, is that PanicAlert GUI popups
are broken on 32-bit Linux. I haven't looked into why that is.
git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@6836 8ced0084-cf51-0410-be5f-012b33b47a6e
Placing the render window at position 0,0 makes it unmovable on OS X.
Use the conventional r1234 format for SVN revision numbers.
Delete mis-copied .svn directories from the application bundle.
Only warn about a failed low-memory allocation if one was requested.
git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@6811 8ced0084-cf51-0410-be5f-012b33b47a6e
Even with LoadStorePaired accounted for, there are still some
niggling 64-bit cleanliness bugs left that are not practical
to weed out on a single platform. We should probably have an
option to use >2GB memory only on all platforms for debugging.
git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@6792 8ced0084-cf51-0410-be5f-012b33b47a6e
Move MAP_32BIT to MemoryUtil.h.
MAP_VARIABLE is simply the absence of MAP_FIXED.
Replace MAP_ANONYMOUS with the more traditional MAP_ANON - Linux is compatible.
git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@5899 8ced0084-cf51-0410-be5f-012b33b47a6e
There's some cleanup still to be done, but hey, it works. There shouldn't be a noticable speed difference.
I hope GCC doesn't have a problem with the "member function pointers" I used.
git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@1594 8ced0084-cf51-0410-be5f-012b33b47a6e
