Date: Wed, 3 Dec 1997 19:04:22 -0800 (PST) From: Sean Eric Fagan <sef@kithrup.com> To: current@freebsd.org Subject: Heads up -- change to proc structure coming soon Message-ID: <199712040304.TAA18506@kithrup.com>
next in thread | raw e-mail | index | archive | help
Sometime soon (maybe this week, more likely this weekend), I'll be checking
in the procfs-related changes I sent out last week; currently, this is to
support the version of truss I've been working on. This involves a change
to the proc structure, so LKM's, gdb, and ps will need to be rebuilt.
It's not finished -- but I've been making changes only to truss for the past
couple of weeks, and no kernel or procfs changes at all, so I think the
kernel code is ready. I'll also be checking in procctl and an early version
of truss (and quite possibly immediately followed by the later version of
truss ;)). (This isn't to say the kernel code is finalized; I'm not
sure about a couple of the things I'm doing, and there are some features I
want to add.)
Here is an example, for the curious, of what I've got truss doing right now
-- first for a BSD "Hello, World" program, and then for the linux "ldd"
binary.
garth 1% obj/truss /tmp/a.out > /dev/null
syscall fstat(1,0xefbfd7f8)
returns 0 (0x0)
syscall readlink("/etc/malloc.conf",0xefbfd7e4,63)
errno 2 'No such file or directory'
syscall mmap(0x0,4096,0x3,0x1002,-1)
returns 134254592 (0x8009000)
syscall break(0xc000)
returns 0 (0x0)
syscall break(0x1c000)
returns 0 (0x0)
syscall ioctl(0x1,0x402c7413,0xefbfd834)
returns 0 (0x0)
syscall write(1,0xc000,13)
returns 13 (0xd)
syscall exit(0x0)
process exit, rval = 0
garth 2% obj/truss /usr/compat/linux/usr/bin/ldd > /dev/null
syscall linux_personality(0x0)
returns 0 (0x0)
syscall linux_brk(0x0)
returns 134299648 (0x8014000)
syscall linux_brk(0x8017000)
returns 134311936 (0x8017000)
syscall linux_brk(0x8018000)
returns 134316032 (0x8018000)
syscall linux_open("/usr/share/locale/C/LC_MESSAGES",0,016234672457)
errno -2 'No such file or directory'
syscall linux_brk(0x8019000)
returns 134320128 (0x8019000)
syscall linux_newstat("/etc/locale/C/libc.cat",0xefbfd170)
errno -2 'No such file or directory'
syscall linux_newstat("/usr/lib/locale/C/libc.cat",0xefbfd170)
errno -2 'No such file or directory'
syscall linux_newstat("/usr/lib/locale/libc/C",0xefbfd170)
errno -2 'No such file or directory'
syscall linux_newstat("/usr/share/locale/C/libc.cat",0xefbfd170)
errno -2 'No such file or directory'
syscall linux_newstat("/usr/local/share/locale/C/libc.cat",0xefbfd170)
errno -2 'No such file or directory'
syscall linux_newfstat(1,0xefbfc7e0)
returns 0 (0x0)
syscall linux_brk(0x8029000)
returns 134385664 (0x8029000)
syscall linux_ioctl(0x1,0x5401,0xefbfc7a4)
returns 0 (0x0)
syscall write(1,0x8019000,54)
returns 54 (0x36)
syscall exit(0x0)
process exit, rval = 0
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199712040304.TAA18506>