From: Xi Ruoyao <xry111@xry111.site>
Date: Tue, 13 Sep 2022 15:21:39 +0000 (+0800)
Subject: LoongArch: Prepare static PIE support
X-Git-Tag: basepoints/gcc-14~4479
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=90d3e27f3a6add0cd6892bdf07c6a2538bb709e4;p=thirdparty%2Fgcc.git

LoongArch: Prepare static PIE support

Static PIE allows us to extend the ASLR to cover static executables and
it's not too difficult to support it.  On GCC side, we just pass a group
of options to the linker, like other ports with static PIE support.

The real implementation of static PIE (rcrt1.o) will be added into Glibc
later.

gcc/ChangeLog:

	* config/loongarch/gnu-user.h (GNU_USER_TARGET_LINK_SPEC): For
	-static-pie, pass -static -pie --no-dynamic-linker -z text to
	the linker, and do not pass --dynamic-linker.
---

diff --git a/gcc/config/loongarch/gnu-user.h b/gcc/config/loongarch/gnu-user.h
index 664dc9206ad9..c5b1afe530d3 100644
--- a/gcc/config/loongarch/gnu-user.h
+++ b/gcc/config/loongarch/gnu-user.h
@@ -40,8 +40,10 @@ along with GCC; see the file COPYING3.  If not see
 #undef GNU_USER_TARGET_LINK_SPEC
 #define GNU_USER_TARGET_LINK_SPEC \
   "%{G*} %{shared} -m " GNU_USER_LINK_EMULATION \
-  "%{!shared: %{static} %{!static: %{rdynamic:-export-dynamic} " \
-  "-dynamic-linker " GNU_USER_DYNAMIC_LINKER "}}"
+  "%{!shared: %{static} " \
+  "%{!static: %{!static-pie: %{rdynamic:-export-dynamic} " \
+  "-dynamic-linker " GNU_USER_DYNAMIC_LINKER "}} " \
+  "%{static-pie: -static -pie --no-dynamic-linker -z text}}"
 
 
 /* Similar to standard Linux, but adding -ffast-math support.  */