ack/plat/osxppc/libsys/set_errno.s

.sect .text
.define .set_errno
.set_errno:
	lis r4, ha16[_errno]
	stw r3, lo16[_errno](r4)	! set errno
	li r3, -1			! return -1
	blr
Commit a preview of osx386 and osxppc as new platforms. These produce Mach-o executables for Mac OS X on Intel or PowerPC processors. Our code generator for PowerPC (mach/powerpc) still has bugs. Some examples seem to run, but startrek crashes. Our code generator for Intel (mach/i386) is better. There is a problem with job control. If you run paranoia or startrek, then suspend the job (^Z) and resume it ('fg' in bash), then read(2) might fail with EINTR. The larger files in this commit are - plat/osx/cvmach/cvmach.c - plat/osx/libsys/brk.c - plat/osx386/libsys/sigaction.s - plat/osxppc/libsys/sigaction.s 2016-10-02 18:58:05 +00:00			`.sect .text`
			`.define .set_errno`
			`.set_errno:`
Use extended mnemonics and ha16/lo16. Remove wrong comment: that's a right shift, not a left shift. 2018-01-12 01:04:27 +00:00			`lis r4, ha16[_errno]`
			`stw r3, lo16[_errno](r4) ! set errno`
			`li r3, -1 ! return -1`
			`blr`