From f5657270bd9353db74ba802ebed62b7133f7c2a0 Mon Sep 17 00:00:00 2001
From: Alan Modra <amodra@gmail.com>
Date: Mon, 2 Jan 2017 22:33:47 +1030
Subject: [PATCH] Support -z relro on hppa

	PR ld/21000
	* emulparams/hppalinux.sh (DATA_ADDR, SHLIB_DATA_ADDR): Don't define.
	(DATA_SEGMENT_ALIGN, DATA_SEGMENT_END, DATA_SEGMENT_RELRO_END): Define.
	* scripttempl/elf.sc: Don't define the above if DATA_SEGMENT_ALIGN
	is already defined.
---
 ld/ChangeLog               |  8 ++++++++
 ld/emulparams/hppalinux.sh | 13 +++++++++++--
 ld/scripttempl/elf.sc      | 26 ++++++++++++++------------
 3 files changed, 33 insertions(+), 14 deletions(-)

diff --git a/ld/ChangeLog b/ld/ChangeLog
index 6a61d61..90a6d33 100644
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -1,5 +1,13 @@
 2017-01-02  Alan Modra  <amodra@gmail.com>
 
+	PR ld/21000
+	* emulparams/hppalinux.sh (DATA_ADDR, SHLIB_DATA_ADDR): Don't define.
+	(DATA_SEGMENT_ALIGN, DATA_SEGMENT_END, DATA_SEGMENT_RELRO_END): Define.
+	* scripttempl/elf.sc: Don't define the above if DATA_SEGMENT_ALIGN
+	is already defined.
+
+2017-01-02  Alan Modra  <amodra@gmail.com>
+
 	Update year range in copyright notice of all files.
 
 For older changes see ChangeLog-2016
diff --git a/ld/emulparams/hppalinux.sh b/ld/emulparams/hppalinux.sh
index d7d87e2..deb07c2 100644
--- a/ld/emulparams/hppalinux.sh
+++ b/ld/emulparams/hppalinux.sh
@@ -8,8 +8,17 @@ NO_REL_RELOCS=yes
 TEXT_START_ADDR=0x10000
 TARGET_PAGE_SIZE=0x10000
 MAXPAGESIZE="CONSTANT (MAXPAGESIZE)"
-DATA_ADDR="ALIGN(${MAXPAGESIZE})"
-SHLIB_DATA_ADDR="ALIGN(${MAXPAGESIZE})"
+COMMONPAGESIZE="CONSTANT (COMMONPAGESIZE)"
+if test "$LD_FLAG" = "N"; then
+  unset DATA_SEGMENT_ALIGN
+  unset DATA_SEGMENT_END
+  unset DATA_SEGMENT_RELRO_END
+else
+  DATA_SEGMENT_ALIGN="ALIGN(${MAXPAGESIZE});\
+ . = DATA_SEGMENT_ALIGN (${MAXPAGESIZE}, ${COMMONPAGESIZE})"
+  DATA_SEGMENT_END=". = DATA_SEGMENT_END (.);"
+  DATA_SEGMENT_RELRO_END=". = DATA_SEGMENT_RELRO_END (${SEPARATE_GOTPLT-0}, .);"
+fi
 ARCH=hppa
 MACHINE=hppa1.1    # We use 1.1 specific features.
 NOP=0x08000240
diff --git a/ld/scripttempl/elf.sc b/ld/scripttempl/elf.sc
index aa46050..e65f9a3 100644
--- a/ld/scripttempl/elf.sc
+++ b/ld/scripttempl/elf.sc
@@ -120,21 +120,23 @@ test -z "${ELFSIZE}" && ELFSIZE=32
 test -z "${ALIGNMENT}" && ALIGNMENT="${ELFSIZE} / 8"
 test "$LD_FLAG" = "N" && DATA_ADDR=.
 test -z "${ETEXT_NAME}" && ETEXT_NAME=${USER_LABEL_PREFIX}etext
-test -n "$CREATE_SHLIB$CREATE_PIE" && test -n "$SHLIB_DATA_ADDR" && COMMONPAGESIZE=""
-test -z "$CREATE_SHLIB$CREATE_PIE" && test -n "$DATA_ADDR" && COMMONPAGESIZE=""
 test -n "$RELRO_NOW" && unset SEPARATE_GOTPLT
 test -z "$ATTRS_SECTIONS" && ATTRS_SECTIONS=".gnu.attributes 0 : { KEEP (*(.gnu.attributes)) }"
-DATA_SEGMENT_ALIGN="ALIGN(${SEGMENT_SIZE}) + (. & (${MAXPAGESIZE} - 1))"
-DATA_SEGMENT_RELRO_END=""
-DATA_SEGMENT_END=""
-if test -n "${COMMONPAGESIZE}"; then
-  if test "${SEGMENT_SIZE}" != "${MAXPAGESIZE}"; then
-    DATA_SEGMENT_ALIGN="ALIGN (${SEGMENT_SIZE}) - ((${MAXPAGESIZE} - .) & (${MAXPAGESIZE} - 1)); . = DATA_SEGMENT_ALIGN (${MAXPAGESIZE}, ${COMMONPAGESIZE})"
-  else
-    DATA_SEGMENT_ALIGN="DATA_SEGMENT_ALIGN (${MAXPAGESIZE}, ${COMMONPAGESIZE})"
+if test -z "$DATA_SEGMENT_ALIGN"; then
+  test -n "$CREATE_SHLIB$CREATE_PIE" && test -n "$SHLIB_DATA_ADDR" && COMMONPAGESIZE=""
+  test -z "$CREATE_SHLIB$CREATE_PIE" && test -n "$DATA_ADDR" && COMMONPAGESIZE=""
+  DATA_SEGMENT_ALIGN="ALIGN(${SEGMENT_SIZE}) + (. & (${MAXPAGESIZE} - 1))"
+  DATA_SEGMENT_RELRO_END=""
+  DATA_SEGMENT_END=""
+  if test -n "${COMMONPAGESIZE}"; then
+    if test "${SEGMENT_SIZE}" != "${MAXPAGESIZE}"; then
+      DATA_SEGMENT_ALIGN="ALIGN (${SEGMENT_SIZE}) - ((${MAXPAGESIZE} - .) & (${MAXPAGESIZE} - 1)); . = DATA_SEGMENT_ALIGN (${MAXPAGESIZE}, ${COMMONPAGESIZE})"
+    else
+      DATA_SEGMENT_ALIGN="DATA_SEGMENT_ALIGN (${MAXPAGESIZE}, ${COMMONPAGESIZE})"
+    fi
+    DATA_SEGMENT_END=". = DATA_SEGMENT_END (.);"
+    DATA_SEGMENT_RELRO_END=". = DATA_SEGMENT_RELRO_END (${SEPARATE_GOTPLT-0}, .);"
   fi
-  DATA_SEGMENT_END=". = DATA_SEGMENT_END (.);"
-  DATA_SEGMENT_RELRO_END=". = DATA_SEGMENT_RELRO_END (${SEPARATE_GOTPLT-0}, .);"
 fi
 if test -z "${INITIAL_READONLY_SECTIONS}${CREATE_SHLIB}"; then
   INITIAL_READONLY_SECTIONS=".interp       ${RELOCATING-0} : { *(.interp) }"
-- 
2.7.4