X-Git-Url: http://pileus.org/git/?a=blobdiff_plain;f=scripts%2Fsortextable.c;h=5f7a8b663cb9c9eb59b32f4ce63076a6a86914cc;hb=4e8d2139802ce4f41936a687f06c560b12115247;hp=7c2310c5b996dee9d43df56574b30236342c3c81;hpb=389e067032fbb96e439abafae848dd447e4cafb4;p=~andy%2Flinux

diff --git a/scripts/sortextable.c b/scripts/sortextable.c
index 7c2310c5b99..5f7a8b663cb 100644
--- a/scripts/sortextable.c
+++ b/scripts/sortextable.c
@@ -152,6 +152,30 @@ static void (*w2)(uint16_t, uint16_t *);
 
 typedef void (*table_sort_t)(char *, int);
 
+/*
+ * Move reserved section indices SHN_LORESERVE..SHN_HIRESERVE out of
+ * the way to -256..-1, to avoid conflicting with real section
+ * indices.
+ */
+#define SPECIAL(i) ((i) - (SHN_HIRESERVE + 1))
+
+static inline int is_shndx_special(unsigned int i)
+{
+	return i != SHN_XINDEX && i >= SHN_LORESERVE && i <= SHN_HIRESERVE;
+}
+
+/* Accessor for sym->st_shndx, hides ugliness of "64k sections" */
+static inline unsigned int get_secindex(unsigned int shndx,
+					unsigned int sym_offs,
+					const Elf32_Word *symtab_shndx_start)
+{
+	if (is_shndx_special(shndx))
+		return SPECIAL(shndx);
+	if (shndx != SHN_XINDEX)
+		return shndx;
+	return r(&symtab_shndx_start[sym_offs]);
+}
+
 /* 32 bit and 64 bit are very similar */
 #include "sortextable.h"
 #define SORTEXTABLE_64