Date: Thu, 21 Mar 2002 11:28:11 -0500 (EST) From: John Baldwin <jhb@FreeBSD.org> To: Peter Wemm <peter@wemm.org> Cc: freebsd-ia64@freebsd.org Subject: RE: self hosting! Message-ID: <XFMail.20020321112811.jhb@FreeBSD.org> In-Reply-To: <20020321135107.BB36A380A@overcee.wemm.org>
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On 21-Mar-2002 Peter Wemm wrote:
> I finally cracked the problem that was stalling self-hosting. The kernel
> was limiting the userland register stack to 32K (!!). gcc-3.1's c-parse.c
> and expr.c consume around a megabyte of register stack to compile.
>
> Anyway, a natively ./configure'd gcc:
>
> ia64# more bar.c
> main()
> {
> printf("Hello, World!\n");
> }
> ia64# gcc -o bar bar.c
> ia64# ./bar
> Hello, World!
> ia64# gcc -v
> Reading specs from /usr/local/lib/gcc-lib/ia64-unknown-freebsd5.0/3.1/specs
> Configured with: ../configure --enable-languages=c --disable-shared
> --disable-nls --disable-intl
> Thread model: posix
> gcc version 3.1 20020310 (prerelease)
> ia64# file bar
> bar: ELF 64-bit LSB executable, IA-64 (Intel 64 bit architecture) version 1
> (FreeBSD), dynamically linked (uses shared libs), not stripped
> ia64# ldd ./bar
> ./bar:
> libc.so.5 => /usr/lib/libc.so.5 (0x600000004004a000)
>
> Shared libs and all!
>
> (This compiled itself on an SMP ia64 box as well, so the SMP support looks
> like it is getting there too. We still need "fast" interrupts so that
> the clock stats work properly, but that's no big deal yet).
You don't need them to be fast so much as to be synchronous. (INTR_FAST is a
bad misnomer). Just have the clock interrupt handler call
statclock/hardclock/statclock_process/hardclock_process directly.
--
John Baldwin <jhb@FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve!" - http://www.FreeBSD.org/
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