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