From: Erik van der Kouwe <erik@minix3.org>
Date: Fri, 31 Aug 2012 17:01:43 +0000 (+0000)
Subject: sprofdiff: give some more info in case of bad input
X-Git-Tag: v3.2.1~352
X-Git-Url: http://zhaoyanbai.com/repos/%22http:/www.isc.org/icons/man.arpaname.html?a=commitdiff_plain;h=6a83cf3e70b95741d6d29aecc7a148fd69592dc7;p=minix.git

sprofdiff: give some more info in case of bad input
---

diff --git a/commands/sprofdiff/sprofdiff.c b/commands/sprofdiff/sprofdiff.c
index 18028a2a1..fc9bb70dd 100755
--- a/commands/sprofdiff/sprofdiff.c
+++ b/commands/sprofdiff/sprofdiff.c
@@ -59,8 +59,8 @@ static void load_file(const char *path, int count_index);
 static void *malloc_checked(size_t size);
 static void print_report(void);
 static void print_report_line(const struct symbol_info *symbol);
-static int read_line(FILE *file, char *binary, char *name,
-	unsigned long *samples);
+static int read_line(FILE *file, const char *path, int line, char *binary,
+	char *name, unsigned long *samples);
 static enum symbol_class symbol_classify(const char *binary, const char *name);
 static unsigned string_hash(const char *s, size_t size);
 static struct symbol_info *symbol_find_or_add(const char *binary,
@@ -162,6 +162,7 @@ static void compute_stats(const struct symbol_count *count, unsigned n,
 static void load_file(const char *path, int count_index) {
 	char binary[PROC_NAME_LEN];
 	FILE *file;
+	int line;
 	char name[SYMBOL_NAME_SIZE];
 	unsigned long samples;
 
@@ -175,7 +176,8 @@ static void load_file(const char *path, int count_index) {
 		exit(1);
 	}
 
-	while (read_line(file, binary, name, &samples)) {
+	line = 1;
+	while (read_line(file, path, line++, binary, name, &samples)) {
 		symbol_tally(binary, name, samples, count_index);
 	}
 
@@ -282,8 +284,8 @@ static void print_report_line(const struct symbol_info *symbol) {
 	printf("\n");
 }
 
-static int read_line(FILE *file, char *binary, char *name,
-	unsigned long *samples) {
+static int read_line(FILE *file, const char *path, int line, char *binary, 
+	char *name, unsigned long *samples) {
 	int c, index;
 
 	assert(file);
@@ -304,7 +306,8 @@ static int read_line(FILE *file, char *binary, char *name,
 
 	/* read tab */
 	if (c != '\t') {
-		fprintf(stderr, "error: garbage %d after binary name\n", c);
+		fprintf(stderr, "error: garbage %d after binary name "
+			"(\"%s\", line %d)\n", c, path, line);
 		exit(1);
 	}
 	c = fgetc(file);
@@ -319,7 +322,8 @@ static int read_line(FILE *file, char *binary, char *name,
 
 	/* read tab */
 	if (c != '\t') {
-		fprintf(stderr, "error: garbage %d after symbol name\n", c);
+		fprintf(stderr, "error: garbage %d after symbol name "
+			"(\"%s\", line %d)\n", c, path, line);
 		exit(1);
 	}
 	c = fgetc(file);
@@ -333,7 +337,8 @@ static int read_line(FILE *file, char *binary, char *name,
 
 	/* read newline */
 	if (c != '\n') {
-		fprintf(stderr, "error: garbage %d after sample count\n", c);
+		fprintf(stderr, "error: garbage %d after sample count "
+			"(\"%s\", line %d)\n", c, path, line);
 		exit(1);
 	}
 	return 1;