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      1 #!/usr/bin/awk -f
      2 # This file is part of ltrace.
      3 # Copyright (C) 2006 Ian Wienand
      4 # Copyright (C) 1999 Juan Cespedes
      5 #
      6 # This program is free software; you can redistribute it and/or
      7 # modify it under the terms of the GNU General Public License as
      8 # published by the Free Software Foundation; either version 2 of the
      9 # License, or (at your option) any later version.
     10 #
     11 # This program is distributed in the hope that it will be useful, but
     12 # WITHOUT ANY WARRANTY; without even the implied warranty of
     13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     14 # General Public License for more details.
     15 #
     16 # You should have received a copy of the GNU General Public License
     17 # along with this program; if not, write to the Free Software
     18 # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
     19 # 02110-1301 USA
     20 
     21 # hack expression to generate arch/syscallent.h from <asm/unistd.h>
     22 # It reads from stdin and writes to stdout
     23 # It should work OK on i386,m68k,arm,ia64
     24 # It does NOT work in mips, s390
     25 # It is untested in other architectures
     26 
     27 BEGIN {
     28 	max=0;
     29 	FS="[ \t\n()+]+";
     30 }
     31 
     32 {
     33 	#debug
     34 	#printf("/%s/%s/%s/%s/\n", $1, $2, $3, $4);
     35 	if (($1 ~ /^#define$/) && ($2 ~ /^__NR_/)) {
     36 	        #ia64 syscalls are > 1000 (lower for x86 compat)
     37 		if (($3>=0) && ($3<=2000)) {
     38 			SYSCALL[$3]=substr($2,6);
     39 			if ($3 > max) {
     40 				max=$3;
     41 			}
     42 		} else if (($3 ~ /^__NR_SYSCALL_BASE$/) && ($4>=0) && ($4<=1000)) {
     43 			SYSCALL[$4]=substr($2,6);
     44 			if ($4 > max) {
     45 				max=$4;
     46 			}
     47 		}
     48 	}
     49 }
     50 
     51 END {
     52 	for(i=0; i<=max; i++) {
     53 		if (!SYSCALL[i]) {
     54 			SYSCALL[i] = i;
     55 		}
     56 		pad = 32 - length(SYSCALL[i]);
     57 		if (pad<1) {
     58 			pad=1;
     59 		}
     60 		printf("\t\"%s\",%*s/* %d */\n", SYSCALL[i], pad, "", i);
     61 	}
     62 }
     63 
     64