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Remove limitation of 6 arguments for makecontext() on mips.

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This implementation spills additional arguments on the stack so works
fine with more than 6 arguments.  I believe the check was just copied
over from sparc64 (which doesn't support spilling onto the stack)

Sponsored by:	DARPA / AFRL
This commit is contained in:
John Baldwin 2018-01-31 18:00:23 +00:00
parent 80996ef878
commit b16fa5e718
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=328632
1 changed files with 1 additions and 1 deletions
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2
lib/libc/mips/gen/makecontext.c
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@ -66,7 +66,7 @@ __makecontext(ucontext_t *ucp, void (*func)(void), int argc, ...)
* so that we can mark a context as invalid. Store it in
* mc->mc_regs[ZERO] perhaps?
*/
if (argc < 0 || argc > 6 || ucp == NULL ||
if (argc < 0 || ucp == NULL ||
ucp->uc_stack.ss_sp == NULL ||
ucp->uc_stack.ss_size < MINSIGSTKSZ)
return;