Accepting request 1113839 from home:Andreas_Schwab:Factory

- riscv-relro.patch: RISC-V: Protect .got with relro

OBS-URL: https://build.opensuse.org/request/show/1113839
OBS-URL: https://build.opensuse.org/package/show/devel:gcc/binutils?expand=0&rev=455

binutils.changes

@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Mon Sep 25 11:12:43 UTC 2023 - Andreas Schwab <schwab@suse.de>
+
+- riscv-relro.patch: RISC-V: Protect .got with relro
+
 -------------------------------------------------------------------
 Thu Sep 14 12:27:48 UTC 2023 - Michael Matz <matz@suse.com>
 

binutils.spec

@@ -154,6 +154,7 @@ Patch42:        binutils-compat-old-behaviour.diff
 Patch43:        binutils-revert-hlasm-insns.diff
 Patch44:        binutils-revert-rela.diff
 Patch45:        binutils-old-makeinfo.diff
+Patch46:        riscv-relro.patch
 Patch100:       add-ulp-section.diff
 Patch90:        cross-avr-nesc-as.patch
 Patch92:        cross-avr-omit_section_dynsym.patch
@@ -283,6 +284,7 @@ cp ld/ldgram.y ld/ldgram.y.orig
 %if %{suse_version} < 1500
 %patch45 -p1
 %endif
+%patch46 -p1
 %patch100 -p1
 %if "%{TARGET}" == "avr"
 cp gas/config/tc-avr.h gas/config/tc-avr-nesc.h

riscv-relro.patch

@@ -0,0 +1,57 @@
+From 7345d05aafde53a48d5a587a6d9c1778db78e0f3 Mon Sep 17 00:00:00 2001
+From: Andreas Schwab <schwab@suse.de>
+Date: Thu, 21 Sep 2023 16:49:41 +0200
+Subject: [PATCH] RISC-V: Protect .got with relro
+
+Move .got before .data so that it can be protected with -zrelro.  Also
+separate .got.plt from .got if -znow is not in effect; the first two words
+of .got.plt are placed within the relro region.
+
+ld:
+	PR ld/30877
+	* emulparams/elf32lriscv-defs.sh (DATA_GOT, SEPARATE_GOTPLT):
+	Define.
+	* emulparams/elf64lriscv-defs.sh (SEPARATE_GOTPLT): Define.
+	* testsuite/ld-elf/binutils.exp (binutils_test): Remove riscv*-*-*
+	from relro_got expression.
+---
+ ld/emulparams/elf32lriscv-defs.sh | 4 ++++
+ ld/emulparams/elf64lriscv-defs.sh | 1 +
+ ld/testsuite/ld-elf/binutils.exp  | 1 -
+ 3 files changed, 5 insertions(+), 1 deletion(-)
+
+diff --git a/ld/emulparams/elf32lriscv-defs.sh b/ld/emulparams/elf32lriscv-defs.sh
+index b823cedacab..016556168c3 100644
+--- a/ld/emulparams/elf32lriscv-defs.sh
++++ b/ld/emulparams/elf32lriscv-defs.sh
+@@ -47,3 +47,7 @@ INITIAL_READONLY_SECTIONS="${RELOCATING+${CREATE_SHLIB-${INITIAL_READONLY_SECTIO
+ OTHER_END_SYMBOLS="${CREATE_SHLIB-__BSS_END__ = .;
+     __global_pointer$ = MIN(__SDATA_BEGIN__ + 0x800,
+ 		            MAX(__DATA_BEGIN__ + 0x800, __BSS_END__ - 0x800));}"
++
++# Put .got before .data
++DATA_GOT=" "
++SEPARATE_GOTPLT="SIZEOF (.got.plt) >= 8 ? 8 : 0"
+diff --git a/ld/emulparams/elf64lriscv-defs.sh b/ld/emulparams/elf64lriscv-defs.sh
+index 84a700a5f58..ca15338428f 100644
+--- a/ld/emulparams/elf64lriscv-defs.sh
++++ b/ld/emulparams/elf64lriscv-defs.sh
+@@ -1,2 +1,3 @@
+ source_sh ${srcdir}/emulparams/elf32lriscv-defs.sh
+ ELFSIZE=64
++SEPARATE_GOTPLT="SIZEOF (.got.plt) >= 16 ? 16 : 0"
+diff --git a/ld/testsuite/ld-elf/binutils.exp b/ld/testsuite/ld-elf/binutils.exp
+index 674e8e9a575..b38e29ed6fb 100644
+--- a/ld/testsuite/ld-elf/binutils.exp
++++ b/ld/testsuite/ld-elf/binutils.exp
+@@ -95,7 +95,6 @@ proc binutils_test { prog_name ld_options test {test_name ""} {readelf_options "
+ 			      || [istarget "mips*-*-*"] \
+ 			      || [istarget "nios2*-*-*"] \
+ 			      || [istarget "or1k-*-*"] \
+-			      || [istarget "riscv*-*-*"] \
+ 			      || [istarget "sh*-*-*"] \
+ 			      || [istarget "x86_64-*-rdos*"])]
+ 	# Check if GNU_RELRO segment is generated.
+-- 
+2.42.0
+