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--- crash-trace-command-2.0/trace.c.orig
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+++ crash-trace-command-2.0/trace.c
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@@ -15,6 +15,7 @@
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 #include <stdio.h>
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 #include <ctype.h>
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 #include <setjmp.h>
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+#include <stdlib.h>
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 static int verbose = 0;
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@@ -892,7 +893,7 @@ out_fail:
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 static int ftrace_init_event_type(ulong call, struct event_type *aevent_type)
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 {
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-	ulong fields_head;
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+	ulong fields_head = 0;
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 	if (ftrace_get_event_type_fields(call, &fields_head) < 0)
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 		return -1;
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@@ -1443,6 +1444,8 @@ static void ftrace_show(int argc, char *
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 	int fd;
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 	FILE *file;
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 	size_t ret;
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+	size_t nitems __attribute__ ((__unused__));
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+	char *unused __attribute__ ((__unused__));
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 	/* check trace-cmd */
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 	if (env_trace_cmd)
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@@ -1465,7 +1468,7 @@ static void ftrace_show(int argc, char *
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 	}
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 	/* dump trace.dat to the temp file */
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-	mktemp(tmp);
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+	unused = mktemp(tmp);
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 	fd = open(tmp, O_WRONLY | O_CREAT | O_TRUNC, 0644);
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 	if (trace_cmd_data_output(fd) < 0)
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 		goto out;
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@@ -1478,7 +1481,7 @@ static void ftrace_show(int argc, char *
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 		ret = fread(buf, 1, sizeof(buf), file);
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 		if (ret == 0)
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 			break;
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-		fwrite(buf, 1, ret, fp);
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+		nitems = fwrite(buf, 1, ret, fp);
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 	}
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 	pclose(file);
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 out: