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-rw-r--r--lld/ELF/Driver.cpp16
1 files changed, 16 insertions, 0 deletions
diff --git a/lld/ELF/Driver.cpp b/lld/ELF/Driver.cpp
index e6c700dcb76..5999fc21533 100644
--- a/lld/ELF/Driver.cpp
+++ b/lld/ELF/Driver.cpp
@@ -394,6 +394,20 @@ static SeparateSegmentKind getZSeparate(opt::InputArgList &args) {
return SeparateSegmentKind::None;
}
+static GnuStackKind getZGnuStack(opt::InputArgList &args) {
+ for (auto *arg : args.filtered_reverse(OPT_z)) {
+ if (StringRef("execstack") == arg->getValue())
+ return GnuStackKind::Exec;
+ if (StringRef("noexecstack") == arg->getValue())
+ return GnuStackKind::NoExec;
+ if (StringRef("nognustack") == arg->getValue())
+ return GnuStackKind::None;
+ }
+
+ // default
+ return GnuStackKind::NoExec;
+}
+
static bool isKnownZFlag(StringRef s) {
return s == "combreloc" || s == "copyreloc" || s == "defs" ||
s == "execstack" || s == "global" || s == "hazardplt" ||
@@ -402,6 +416,7 @@ static bool isKnownZFlag(StringRef s) {
s == "separate-code" || s == "separate-loadable-segments" ||
s == "nocombreloc" || s == "nocopyreloc" || s == "nodefaultlib" ||
s == "nodelete" || s == "nodlopen" || s == "noexecstack" ||
+ s == "nognustack" ||
s == "nokeep-text-section-prefix" || s == "norelro" ||
s == "noseparate-code" || s == "notext" || s == "now" ||
s == "origin" || s == "relro" || s == "retpolineplt" ||
@@ -951,6 +966,7 @@ static void readConfigs(opt::InputArgList &args) {
config->zCopyreloc = getZFlag(args, "copyreloc", "nocopyreloc", true);
config->zExecstack = getZFlag(args, "execstack", "noexecstack", false);
config->zGlobal = hasZOption(args, "global");
+ config->zGnustack = getZGnuStack(args);
config->zHazardplt = hasZOption(args, "hazardplt");
config->zIfuncNoplt = hasZOption(args, "ifunc-noplt");
config->zInitfirst = hasZOption(args, "initfirst");
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