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From: Rui Paulo <rpaulo@FreeBSD.org>
Date: Thu, 16 Sep 2010 11:33:31 +0000 (UTC)
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Subject: svn commit: r212727 - head/usr.bin/kdump
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Author: rpaulo
Date: Thu Sep 16 11:33:31 2010
New Revision: 212727
URL: http://svn.freebsd.org/changeset/base/212727

Log:
  When generating functions to print the arguments of system calls with
  bitwise parameters (e.g. mmap), print the syscall parameter value first.
  The resulting output looks like the %b specifier of printf(9).
  
  Before:
  mmap(0,0x8000,PROT_READ|PROT_WRITE,...
  After:
  mmap(0,0x8000,0x3<PROT_READ|PROT_WRITE>,...
  
  Submitted by:	Norberto Lopes <nlopes.ml at gmail.com>
  Idea from:	freebsd-arch/2006-April/005116.html

Modified:
  head/usr.bin/kdump/mksubr

Modified: head/usr.bin/kdump/mksubr
==============================================================================
--- head/usr.bin/kdump/mksubr	Thu Sep 16 10:53:01 2010	(r212726)
+++ head/usr.bin/kdump/mksubr	Thu Sep 16 11:33:31 2010	(r212727)
@@ -49,6 +49,7 @@ void
 $name (int arg)
 {
 	int	or = 0;
+        printf("%#x<", arg);
 _EOF_
 	egrep "^#[[:space:]]*define[[:space:]]+"${grep}"[[:space:]]*" \
 		$include_dir/$file | \
@@ -58,6 +59,7 @@ _EOF_
 		++i; \
 		printf "\tif(!((arg>0)^((%s)>0)))\n\t\tif_print_or(arg, %s, or);\n", $i, $i }'
 cat <<_EOF_
+        printf(">");
 	if (or == 0)
 		(void)printf("<invalid>%ld", (long)arg);
 }
@@ -432,6 +434,8 @@ sendrecvflagsname (int flags)
 		(void)printf("0");
 		return;
 	}
+
+        printf("%#x<", flags);
 _EOF_
 egrep "^#[[:space:]]*define[[:space:]]+MSG_[A-Z]+[[:space:]]+0x[0-9]+[[:space:]]*" $include_dir/sys/socket.h | \
 	awk '{ for (i = 1; i <= NF; i++) \
@@ -440,6 +444,7 @@ egrep "^#[[:space:]]*define[[:space:]]+M
 		++i; \
 		printf "\tif(!((flags>0)^((%s)>0)))\n\t\tif_print_or(flags, %s, or);\n", $i, $i }'
 cat <<_EOF_
+        printf(">");
 }
 
 _EOF_