Adding upstream version 2.38.1.upstream/2.38.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 152 insertions, 0 deletions

diff --git a/sys-utils/lsirq.c b/sys-utils/lsirq.c
new file mode 100644
index 0000000..1a90efe
--- /dev/null
+++ b/sys-utils/lsirq.c
@@ -0,0 +1,152 @@
+/*
+ * lsirq - utility to display kernel interrupt information.
+ *
+ * Copyright (C) 2019 zhenwei pi <pizhenwei@bytedance.com>
+ * Copyright (C) 2020 Karel Zak <kzak@redhat.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+#include <ctype.h>
+#include <errno.h>
+#include <getopt.h>
+#include <limits.h>
+#include <locale.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <libsmartcols.h>
+
+#include "closestream.h"
+#include "optutils.h"
+#include "strutils.h"
+#include "xalloc.h"
+
+#include "irq-common.h"
+
+static int print_irq_data(struct irq_output *out, int softirq)
+{
+	struct libscols_table *table;
+
+	table = get_scols_table(out, NULL, NULL, softirq);
+	if (!table)
+		return -1;
+
+	scols_print_table(table);
+	scols_unref_table(table);
+	return 0;
+}
+
+static void __attribute__((__noreturn__)) usage(void)
+{
+	fputs(USAGE_HEADER, stdout);
+	printf(_(" %s [options]\n"), program_invocation_short_name);
+	fputs(USAGE_SEPARATOR, stdout);
+
+	puts(_("Utility to display kernel interrupt information."));
+
+	fputs(USAGE_OPTIONS, stdout);
+	fputs(_(" -J, --json           use JSON output format\n"), stdout);
+	fputs(_(" -P, --pairs          use key=\"value\" output format\n"), stdout);
+	fputs(_(" -n, --noheadings     don't print headings\n"), stdout);
+	fputs(_(" -o, --output <list>  define which output columns to use\n"), stdout);
+	fputs(_(" -s, --sort <column>  specify sort column\n"), stdout);
+	fputs(_(" -S, --softirq        show softirqs instead of interrupts\n"), stdout);
+	fputs(USAGE_SEPARATOR, stdout);
+	printf(USAGE_HELP_OPTIONS(22));
+
+	fputs(USAGE_COLUMNS, stdout);
+	irq_print_columns(stdout, 1);
+
+	printf(USAGE_MAN_TAIL("lsirq(1)"));
+	exit(EXIT_SUCCESS);
+}
+
+int main(int argc, char **argv)
+{
+	struct irq_output out = {
+		.ncolumns = 0
+	};
+	static const struct option longopts[] = {
+		{"sort", required_argument, NULL, 's'},
+		{"noheadings", no_argument, NULL, 'n'},
+		{"output", required_argument, NULL, 'o'},
+		{"softirq", no_argument, NULL, 'S'},
+		{"json", no_argument, NULL, 'J'},
+		{"pairs", no_argument, NULL, 'P'},
+		{"help", no_argument, NULL, 'h'},
+		{"version", no_argument, NULL, 'V'},
+		{NULL, 0, NULL, 0}
+	};
+	int c;
+	const char *outarg = NULL;
+	static const ul_excl_t excl[] = {	/* rows and cols in ASCII order */
+		{'J', 'P'},
+		{0}
+	};
+	int excl_st[ARRAY_SIZE(excl)] = UL_EXCL_STATUS_INIT;
+	int softirq = 0;
+
+	setlocale(LC_ALL, "");
+
+	while ((c = getopt_long(argc, argv, "no:s:ShJPV", longopts, NULL)) != -1) {
+		err_exclusive_options(c, longopts, excl, excl_st);
+
+		switch (c) {
+		case 'J':
+			out.json = 1;
+			break;
+		case 'P':
+			out.pairs = 1;
+			break;
+		case 'n':
+			out.no_headings = 1;
+			break;
+		case 'o':
+			outarg = optarg;
+			break;
+		case 's':
+			set_sort_func_by_name(&out, optarg);
+			break;
+		case 'S':
+			softirq = 1;
+			break;
+		case 'V':
+			print_version(EXIT_SUCCESS);
+		case 'h':
+			usage();
+		default:
+			errtryhelp(EXIT_FAILURE);
+		}
+	}
+
+	/* default */
+	if (!out.ncolumns) {
+		out.columns[out.ncolumns++] = COL_IRQ;
+		out.columns[out.ncolumns++] = COL_TOTAL;
+		out.columns[out.ncolumns++] = COL_NAME;
+	}
+
+	/* add -o [+]<list> to putput */
+	if (outarg && string_add_to_idarray(outarg, out.columns,
+				ARRAY_SIZE(out.columns),
+				&out.ncolumns,
+				irq_column_name_to_id) < 0)
+		exit(EXIT_FAILURE);
+
+	return print_irq_data(&out, softirq) == 0 ?  EXIT_SUCCESS : EXIT_FAILURE;
+}