This is the minimal change to handle RO_AFTER_INIT_DATA. The tile architecture already marks RO_DATA as read-only in the kernel, so grouping RO_AFTER_INIT_DATA with RO_DATA, as is done by default, means the kernel faults in init when it tries to write to RO_AFTER_INIT_DATA. For now, just move it past the end of the RODATA section so it is not specially treated. --- This is just to fix 4.9; I will post a more complete fix shortly targeting 4.10.
arch/tile/kernel/vmlinux.lds.S | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/tile/kernel/vmlinux.lds.S b/arch/tile/kernel/vmlinux.lds.S index e1baf094fba4..dcd7445c31a2 100644 --- a/arch/tile/kernel/vmlinux.lds.S +++ b/arch/tile/kernel/vmlinux.lds.S @@ -1,3 +1,6 @@ +/* Handle ro_after_init data on our own. */ +#define RO_AFTER_INIT_DATA + #include <asm-generic/vmlinux.lds.h> #include <asm/page.h> #include <asm/cache.h> @@ -87,6 +90,7 @@ SECTIONS _sdata = .; /* Start of data section */ RO_DATA_SECTION(PAGE_SIZE) + RO_AFTER_INIT_DATA RW_DATA_SECTION(L2_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE) _edata = .; -- 2.7.2
