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From:	"Gene Spleen" <gene_spleen AT hotmail DOT com>
To:	cygwin AT cygwin DOT com
Subject:	Better diagnostics in mmap.cc
Date:	Tue, 27 Feb 2001 18:03:30 -0500
Mime-Version:	1.0
Message-ID:	<LAW2-F85x8VUkRacUtI00001da5@hotmail.com>
X-OriginalArrivalTime:	27 Feb 2001 23:03:31.0139 (UTC) FILETIME=[80A81930:01C0A111]

I'm trying to debug ipc-daemon, et al, and have found the cygwin libraries 
impossible to build for various reasons.  This is a problem because I'm 
trying to debug a problem inside mmap.cc.  It would be great if you could 
add syscall_printf to the beggining of all calls in this module, much like 
what was done with

extern "C"
caddr_t
mmap (caddr_t addr, size_t len, int prot, int flags, int fd, off_t off)
{
  syscall_printf ("addr %x, len %d, prot %x, flags %x, fd %d, off %d",
                  addr, len, prot, flags, fd, off);

In particular, since map_map seems to be failing on VirtualProtect 
(GetLastError()==487), logging off and len would be helpfull, as would 
adding the parameter passed to VirtualProtect when executing:

syscall_printf ("-1 = map_map (): %E");

(in both places).

This should help hugely.  Thank you
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