Hi Huacai, I love your patch! Yet something to improve: [auto build test ERROR on linus/master] [also build test ERROR on v4.16-rc5 next-20180309] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Huacai-Chen/ZBOOT-fix-stack-protector-in-compressed-boot-phase/20180312-114651 config: sh-allnoconfig (attached as .config) compiler: sh4-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=sh All errors (new ones prefixed by >>): arch/sh/boot/compressed/head_32.S: Assembler messages: >> arch/sh/boot/compressed/head_32.S:79: Error: pcrel too far >> arch/sh/boot/compressed/head_32.S:80: Error: offset out of range >> arch/sh/boot/compressed/head_32.S:80: Error: value of 658943 too large for field of 2 bytes at 102 vim +79 arch/sh/boot/compressed/head_32.S 12 13 .global startup 14 startup: 15 /* Load initial status register */ 16 mov.l init_sr, r1 17 ldc r1, sr 18 19 /* Move myself to proper location if necessary */ 20 mova 1f, r0 21 mov.l 1f, r2 22 cmp/eq r2, r0 23 bt clear_bss 24 sub r0, r2 25 mov.l bss_start_addr, r0 26 mov #0xffffffe0, r1 27 and r1, r0 ! align cache line 28 mov.l text_start_addr, r3 29 mov r0, r1 30 sub r2, r1 31 3: 32 mov.l @r1, r4 33 mov.l @(4,r1), r5 34 mov.l @(8,r1), r6 35 mov.l @(12,r1), r7 36 mov.l @(16,r1), r8 37 mov.l @(20,r1), r9 38 mov.l @(24,r1), r10 39 mov.l @(28,r1), r11 40 mov.l r4, @r0 41 mov.l r5, @(4,r0) 42 mov.l r6, @(8,r0) 43 mov.l r7, @(12,r0) 44 mov.l r8, @(16,r0) 45 mov.l r9, @(20,r0) 46 mov.l r10, @(24,r0) 47 mov.l r11, @(28,r0) 48 #ifdef CONFIG_CPU_SH4 49 ocbwb @r0 50 #endif 51 cmp/hi r3, r0 52 add #-32, r0 53 bt/s 3b 54 add #-32, r1 55 mov.l 2f, r0 56 jmp @r0 57 nop 58 59 .align 2 60 1: .long 1b 61 2: .long clear_bss 62 text_start_addr: 63 .long startup 64 65 /* Clear BSS */ 66 clear_bss: 67 mov.l end_addr, r1 68 mov.l bss_start_addr, r2 69 mov #0, r0 70 l1: 71 mov.l r0, @-r1 72 cmp/eq r1,r2 73 bf l1 74 75 /* Set the initial pointer. */ 76 mov.l init_stack_addr, r0 77 mov.l @r0, r15 78 > 79 mov.l __stack_chk_guard, r0 > 80 mov #0x000a0dff, r1 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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