tree: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git WIP.x86/pti-upstream head: 78e4da51f7c77587cc6f419af4f63a21b289bdb7 commit: 7e482cfe4a23ead21215423c4566c8516ba21025 [38/50] x86/pti: Put the LDT in its own PGD if PTI is on config: i386-randconfig-h0-12170619 (attached as .config) compiler: gcc-6 (Debian 6.4.0-9) 6.4.0 20171026 reproduce: git checkout 7e482cfe4a23ead21215423c4566c8516ba21025 # save the attached .config to linux build tree make ARCH=i386
All errors (new ones prefixed by >>):
In file included from arch/x86//kernel/apic/ipi.c:16:0:
arch/x86/include/asm/mmu_context.h: In function 'ldt_slot_va':
>> arch/x86/include/asm/mmu_context.h:73:18: error: 'LDT_BASE_ADDR' undeclared
>> (first use in this function)
return (void *)(LDT_BASE_ADDR + LDT_SLOT_STRIDE * slot);
^~~~~~~~~~~~~
arch/x86/include/asm/mmu_context.h:73:18: note: each undeclared identifier
is reported only once for each function it appears in
--
In file included from arch/x86//kernel/cpu/common.c:22:0:
arch/x86/include/asm/mmu_context.h: In function 'ldt_slot_va':
>> arch/x86/include/asm/mmu_context.h:73:18: error: 'LDT_BASE_ADDR' undeclared
>> (first use in this function)
return (void *)(LDT_BASE_ADDR + LDT_SLOT_STRIDE * slot);
^~~~~~~~~~~~~
arch/x86/include/asm/mmu_context.h:73:18: note: each undeclared identifier
is reported only once for each function it appears in
In file included from arch/x86//kernel/cpu/common.c:22:0:
arch/x86/include/asm/mmu_context.h:74:1: warning: control reaches end of
non-void function [-Wreturn-type]
}
^
vim +/LDT_BASE_ADDR +73 arch/x86/include/asm/mmu_context.h
70
71 static inline void *ldt_slot_va(int slot)
72 {
> 73 return (void *)(LDT_BASE_ADDR + LDT_SLOT_STRIDE * slot);
74 }
75
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