binutils-gdb/sim/igen/compare_igen_models
Joel Brobecker 61baf725ec update copyright year range in GDB files
This applies the second part of GDB's End of Year Procedure, which
updates the copyright year range in all of GDB's files.

gdb/ChangeLog:

        Update copyright year range in all GDB files.
2017-01-01 10:52:34 +04:00

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#!/bin/sh
# Script to compare functions and instructions used by different igen models.
# Copyright (C) 2002-2017 Free Software Foundation, Inc.
# Contributed by Chris Demetriou of Broadcom Corporation (SiByte).
#
# This file is part of GDB, the GNU debugger.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# This is a simple-minded script to compare the functions and instructions
# listed for two different models in one or more .igen files.
#
# It was intended to be useful to help factor models into common subsets.
#
# Things to note:
#
# * igen include directives are not processed!
#
# * functions and instructions with multiple definitions (e.g., based
# on model names) are treated as being different. In other words,
# if two models have different functions named 'foo', this
# script will say that one has one of the function definitions, and
# the other has the other.
if [ "$#" -lt 2 ]; then
echo "usage: $0 model1 model2 [file ...]" 1>&2
exit 1
fi
model1="$1"
model2="$2"
shift; shift
gawk -v model1="$model1" -v model2="$model2" -F: -- '
BEGIN {
thang_count = 0
}
function thang_has_model(t, m) {
# printf("thang_has_model(%s, %s) (@ %s:%d)\n", t, m,
# thangs[t,"file"], thangs[t,"line"]);
if (thangs[t,"nmodels"] == 0) return 1;
for (j = 0; j < thangs[t,"nmodels"]; j++) {
# printf("\tmodel \"%s\"\n", thangs[t,"models",j]);
if (thangs[t,"models",j] == m) return 1;
}
# printf("\t-> 0\n");
return 0
}
function compare_models(m1, m2) {
# printf("compare_models(%s, %s)\n", m1, m2);
seen_any=0
for (i = 0; i < thang_count; i++) {
if (thang_has_model(i, m1) && !thang_has_model(i, m2)) {
if (!seen_any) {
printf("Things in %s but not in %s:\n", m1, m2);
seen_any = 1
}
printf("%s:%d: %s\n", thangs[i,"file"],
thangs[i,"line"], thangs[i,"contents"]);
}
}
}
$0 ~ /^:/ && $2 == "model" {
# ignore.
# print "model " $0
}
($0 ~ /^:/ && $2 == "function") || \
($0 ~ /^:/ && $2 == "internal") || \
($0 ~ /^[0-9]/) {
# a function, internal, or instruction.
current_thang = thang_count
thang_count++
thangs[current_thang,"file"] = FILENAME
thangs[current_thang,"line"] = NR
thangs[current_thang,"contents"] = $0
thangs[current_thang,"nmodels"] = 0
if ($0 ~ /^:/) {
thangs[current_thang,"type"] = $2
} else {
thangs[current_thang,"type"] = "instruction"
}
}
$0 ~ /^\*/ {
split(substr($1, 2), tmp_models, /,/)
for (key in tmp_models) {
current_model = thangs[current_thang,"nmodels"]
thangs[current_thang,"nmodels"]++
thangs[current_thang,"models",current_model] = tmp_models[key]
}
}
END {
compare_models(model1, model2)
if (seen_any) printf("\n");
compare_models(model2, model1)
}' "$@"
exit "$?"