Date: Wed, 31 Jan 2018 18:00:23 +0000 (UTC) From: John Baldwin <jhb@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r328632 - head/lib/libc/mips/gen Message-ID: <201801311800.w0VI0NFA035711@repo.freebsd.org>
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Author: jhb Date: Wed Jan 31 18:00:23 2018 New Revision: 328632 URL: https://svnweb.freebsd.org/changeset/base/328632 Log: Remove limitation of 6 arguments for makecontext() on mips. 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 Modified: head/lib/libc/mips/gen/makecontext.c Modified: head/lib/libc/mips/gen/makecontext.c ============================================================================== --- head/lib/libc/mips/gen/makecontext.c Wed Jan 31 17:57:59 2018 (r328631) +++ head/lib/libc/mips/gen/makecontext.c Wed Jan 31 18:00:23 2018 (r328632) @@ -66,7 +66,7 @@ __makecontext(ucontext_t *ucp, void (*func)(void), int * 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;
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