From mboxrd@z Thu Jan  1 00:00:00 1970
Date: Fri,  8 Nov 2013 16:36:03 -0800
From: Nick Owens <mischief@9.offblast.org>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
Message-ID: <20131109003603.GP11218@iota.offblast.org>
References: <20131108024600.GN11218@iota.offblast.org>
	<DCEDB867-5999-42E0-8C08-F940419C2637@gmail.com>
	<CAJSxfm+k5KQ-F0SEPa_gRMGxBgYzxP=_CPde2nUzYuYVWmAA=Q@mail.gmail.com>
	<20131108234629.GO11218@iota.offblast.org>
	<c18c95ec163f211e43c7320ed244e53c@ladd.quanstro.net>
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Subject: Re: [9fans] acid analogues of gdb stepping commands
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On Fri, Nov 08, 2013 at 06:51:54PM -0500, erik quanstrom wrote:
> have you tried compiling with -N (no peephole opt).
>=20
> - erik
>=20

i hadn't, but i just tried it like so, where Next is basically as Skip desc=
ribed:

cpu% 8c -FTVw -N ps.c
cpu% 8l -N -o 8.ps ps.8
cpu% cp 8.ps /386/bin/ps
cpu% acid /bin/ps
/bin/ps:386 plan 9 executable
/sys/lib/acid/port
/sys/lib/acid/386
acid: new()
1645200: system call  _main SUBL  $0x48,SP
1645200: breakpoint main+0x3  MOVL  $0x1,none+0x2c(SP)
acid: Next()
mischief          1    0:00   0:00      220K Await    bootrc
mischief          2   12:39   0:00        0K Wakeme   genrandom
<rest of output elided>
1645200: breakpoint main+0xb  CMPL  argv0(SB),$0x0
<stdin>:3: (error) msg: pid=3D1645200 startstop: process exited
acid:=20

Bsrc shows this happens right after ARGBEGIN. maybe that confuses acid?

i should mention now that i am on 9front, but i hope that doesn't matter.

nick


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