module, riscv: force sh_addr=0 for arch-specific sections

When linking modules with 'ld.bfd -r', sections defined without an address
inherit the location counter, resulting in non-zero sh_addr values in the
resulting .ko files. Relocatable objects are expected to have sh_addr=0 for
all sections. Non-zero addresses are confusing in this context, typically
worse compressible, and may cause tools to misbehave [1].

Force sh_addr=0 for all riscv-specific module sections.

Link: https://sourceware.org/bugzilla/show_bug.cgi?id=33958
Signed-off-by: Petr Pavlu <petr.pavlu@suse.com>
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>

diff --git a/arch/riscv/include/asm/module.lds.h b/arch/riscv/include/asm/module.lds.h
index 1075beae1ac64521e4c98eadf9acc785deb93d3e..9ced27c8ccb627480384a6fd472ed9b0c4f779ef 100644 (file)
--- a/arch/riscv/include/asm/module.lds.h
+++ b/arch/riscv/include/asm/module.lds.h
@@ -2,8 +2,8 @@
 /* Copyright (C) 2017 Andes Technology Corporation */
 #ifdef CONFIG_MODULE_SECTIONS
 SECTIONS {
-       .plt : { BYTE(0) }
-       .got : { BYTE(0) }
-       .got.plt : { BYTE(0) }
+       .plt 0 : { BYTE(0) }
+       .got 0 : { BYTE(0) }
+       .got.plt 0 : { BYTE(0) }
 }
 #endif