Fixed MCSectionMachO::ParseSectionSpecifier to allow an attribute of "none" so
that a symbol stub section with no attributes can be parsed as in:
.section __TEXT,__picsymbolstub4,symbol_stubs,none,16
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83488 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MCSectionMachO.cpp b/lib/MC/MCSectionMachO.cpp
index 33f5087..b3aeb9c 100644
--- a/lib/MC/MCSectionMachO.cpp
+++ b/lib/MC/MCSectionMachO.cpp
@@ -40,8 +40,8 @@
/// SectionAttrDescriptors - This is an array of descriptors for section
/// attributes. Unlike the SectionTypeDescriptors, this is not directly indexed
-/// by attribute, instead it is searched. The last entry has a zero AttrFlag
-/// value.
+/// by attribute, instead it is searched. The last entry has an AttrFlagEnd
+/// AttrFlag value.
static const struct {
unsigned AttrFlag;
const char *AssemblerName, *EnumName;
@@ -59,7 +59,9 @@
ENTRY(0 /*FIXME*/, S_ATTR_EXT_RELOC)
ENTRY(0 /*FIXME*/, S_ATTR_LOC_RELOC)
#undef ENTRY
- { 0, "none", 0 }
+ { 0, "none", 0 }, // used if section has no attributes but has a stub size
+#define AttrFlagEnd 0xffffffff // non legal value, multiple attribute bits set
+ { AttrFlagEnd, 0, 0 }
};
@@ -228,7 +230,7 @@
// Look up the attribute.
for (unsigned i = 0; ; ++i) {
- if (SectionAttrDescriptors[i].AttrFlag == 0)
+ if (SectionAttrDescriptors[i].AttrFlag == AttrFlagEnd)
return "mach-o section specifier has invalid attribute";
if (SectionAttrDescriptors[i].AssemblerName &&