X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=scripts%2Fkallsyms.c;h=6654cbed965b932c2cc515243680edac93b00c0b;hb=HEAD;hp=ad2434b26970c17b4b72efb82761afd0ac04042d;hpb=8b0e5860cb099d7958d13b00ffbc35ad02735700;p=linux-2.6-omap-h63xx.git

diff --git a/scripts/kallsyms.c b/scripts/kallsyms.c
index ad2434b2697..6654cbed965 100644
--- a/scripts/kallsyms.c
+++ b/scripts/kallsyms.c
@@ -500,6 +500,51 @@ static void optimize_token_table(void)
 	optimize_result();
 }
 
+/* guess for "linker script provide" symbol */
+static int may_be_linker_script_provide_symbol(const struct sym_entry *se)
+{
+	const char *symbol = (char *)se->sym + 1;
+	int len = se->len - 1;
+
+	if (len < 8)
+		return 0;
+
+	if (symbol[0] != '_' || symbol[1] != '_')
+		return 0;
+
+	/* __start_XXXXX */
+	if (!memcmp(symbol + 2, "start_", 6))
+		return 1;
+
+	/* __stop_XXXXX */
+	if (!memcmp(symbol + 2, "stop_", 5))
+		return 1;
+
+	/* __end_XXXXX */
+	if (!memcmp(symbol + 2, "end_", 4))
+		return 1;
+
+	/* __XXXXX_start */
+	if (!memcmp(symbol + len - 6, "_start", 6))
+		return 1;
+
+	/* __XXXXX_end */
+	if (!memcmp(symbol + len - 4, "_end", 4))
+		return 1;
+
+	return 0;
+}
+
+static int prefix_underscores_count(const char *str)
+{
+	const char *tail = str;
+
+	while (*tail != '_')
+		tail++;
+
+	return tail - str;
+}
+
 static int compare_symbols(const void *a, const void *b)
 {
 	const struct sym_entry *sa;
@@ -521,6 +566,18 @@ static int compare_symbols(const void *a, const void *b)
 	if (wa != wb)
 		return wa - wb;
 
+	/* sort by "linker script provide" type */
+	wa = may_be_linker_script_provide_symbol(sa);
+	wb = may_be_linker_script_provide_symbol(sb);
+	if (wa != wb)
+		return wa - wb;
+
+	/* sort by the number of prefix underscores */
+	wa = prefix_underscores_count((const char *)sa->sym + 1);
+	wb = prefix_underscores_count((const char *)sb->sym + 1);
+	if (wa != wb)
+		return wa - wb;
+
 	/* sort by initial order, so that other symbols are left undisturbed */
 	return sa->start_pos - sb->start_pos;
 }