From: Iain Buclaw <ibuclaw@gdcproject.org>
Date: Sat, 23 Jan 2021 23:20:25 +0000 (+0100)
Subject: libphobos: Fix executables segfault on mipsel architecture
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=81f928ec8e8abf1f21c5ff008c39b5d6af78f6cb;p=gcc.git

libphobos: Fix executables segfault on mipsel architecture

The dynamic section on MIPS is read-only, but this was not properly
handled in the runtime library.  The segfault only occurred for programs
that linked to the shared libphobos library.

libphobos/ChangeLog:

	PR d/98806
	* libdruntime/gcc/sections/elf_shared.d (MIPS_Any): Declare version
	for MIPS32 and MIPS64.
	(getDependencies): Adjust dlpi_addr on MIPS_Any.
---

diff --git a/libphobos/libdruntime/gcc/sections/elf_shared.d b/libphobos/libdruntime/gcc/sections/elf_shared.d
index 9050413b261..427759a4f94 100644
--- a/libphobos/libdruntime/gcc/sections/elf_shared.d
+++ b/libphobos/libdruntime/gcc/sections/elf_shared.d
@@ -22,6 +22,8 @@
 
 module gcc.sections.elf_shared;
 
+version (MIPS32)  version = MIPS_Any;
+version (MIPS64)  version = MIPS_Any;
 version (RISCV32) version = RISCV_Any;
 version (RISCV64) version = RISCV_Any;
 version (S390)    version = IBMZ_Any;
@@ -763,6 +765,8 @@ version (Shared)
                     // in glibc: #define DL_RO_DYN_SECTION 1
                     version (RISCV_Any)
                         strtab = cast(const(char)*)(info.dlpi_addr + dyn.d_un.d_ptr); // relocate
+                    else version (MIPS_Any)
+                        strtab = cast(const(char)*)(info.dlpi_addr + dyn.d_un.d_ptr); // relocate
                     else
                         strtab = cast(const(char)*)dyn.d_un.d_ptr;
                 }