forked from luck/tmp_suning_uos_patched
3ac6cffea4
Impact: fix linker screwup on x86_32 Recent x86_64 zerobased patches introduced PERCPU_VADDR() to put .data.percpu to a predefined address and re-defined PERCPU() in terms of it. The new macro defined one extra symbol, __per_cpu_load, for LMA of the section so that the init data could be accessed. This new symbol introduced the following problems to x86_32. 1. If __per_cpu_load is defined outside of .data.percpu as an absolute symbol, relocation generation for relocatable kernel fails due to absolute relocation. 2. If __per_cpu_load is put inside .data.percpu with absolute address assignment to work around #1, linker gets confused and under certain configurations ends up relocating the symbol against .data.percpu such that the load address gets added on top of already set load address. As x86_32 doesn't use predefined address for .data.percpu, there's no need for it to care about the possibility of __per_cpu_load being different from __per_cpu_start. This patch defines PERCPU() separately so that __per_cpu_load is defined inside .data.percpu so that everything is ordinary linking-wise. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> |
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.. | ||
bitops | ||
4level-fixup.h | ||
atomic.h | ||
audit_change_attr.h | ||
audit_dir_write.h | ||
audit_read.h | ||
audit_signal.h | ||
audit_write.h | ||
bitops.h | ||
bug.h | ||
cmpxchg-local.h | ||
cmpxchg.h | ||
cputime.h | ||
device.h | ||
div64.h | ||
dma-coherent.h | ||
dma-mapping-broken.h | ||
dma-mapping.h | ||
emergency-restart.h | ||
errno-base.h | ||
errno.h | ||
fcntl.h | ||
futex.h | ||
gpio.h | ||
ide_iops.h | ||
int-l64.h | ||
int-ll64.h | ||
ioctl.h | ||
iomap.h | ||
irq_regs.h | ||
Kbuild | ||
Kbuild.asm | ||
kdebug.h | ||
libata-portmap.h | ||
local.h | ||
memory_model.h | ||
mm_hooks.h | ||
mman.h | ||
mutex-dec.h | ||
mutex-null.h | ||
mutex-xchg.h | ||
page.h | ||
pci-dma-compat.h | ||
pci.h | ||
percpu.h | ||
pgtable-nopmd.h | ||
pgtable-nopud.h | ||
pgtable.h | ||
poll.h | ||
resource.h | ||
rtc.h | ||
sections.h | ||
siginfo.h | ||
signal.h | ||
statfs.h | ||
syscall.h | ||
termios.h | ||
tlb.h | ||
topology.h | ||
uaccess.h | ||
vmlinux.lds.h | ||
xor.h |