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authorZong Li <zong@andestech.com>2018-03-15 16:50:41 +0800
committerPalmer Dabbelt <palmer@sifive.com>2018-04-02 20:00:54 -0700
commitab1ef68e54019937cf859f2c86c9ead6f3e62f19 (patch)
tree15fd30ddaaf18d61caf77f8748e291f3802987b5 /arch/riscv/Makefile
parentLinux 4.16 (diff)
downloadlinux-dev-ab1ef68e54019937cf859f2c86c9ead6f3e62f19.tar.xz
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RISC-V: Add sections of PLT and GOT for kernel module
The address of external symbols will locate more than 32-bit offset in 64-bit kernel with sv39 or sv48 virtual addressing. Module loader emits the GOT and PLT entries for data symbols and function symbols respectively. The PLT entry is a trampoline code for jumping to the 64-bit real address. The GOT entry is just the data symbol address. Signed-off-by: Zong Li <zong@andestech.com> Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
Diffstat (limited to 'arch/riscv/Makefile')
-rw-r--r--arch/riscv/Makefile5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/riscv/Makefile b/arch/riscv/Makefile
index 6719dd30ec5b..c72d408c05c0 100644
--- a/arch/riscv/Makefile
+++ b/arch/riscv/Makefile
@@ -56,6 +56,11 @@ endif
ifeq ($(CONFIG_CMODEL_MEDANY),y)
KBUILD_CFLAGS += -mcmodel=medany
endif
+ifeq ($(CONFIG_MODULE_SECTIONS),y)
+ KBUILD_LDFLAGS_MODULE += -T $(srctree)/arch/riscv/kernel/module.lds
+endif
+
+KBUILD_CFLAGS_MODULE += $(call cc-option,-mno-relax)
# GCC versions that support the "-mstrict-align" option default to allowing
# unaligned accesses. While unaligned accesses are explicitly allowed in the