Messages in this thread | | | Date | Thu, 8 Dec 2016 21:41:36 +0800 | From | Baoquan He <> | Subject | Re: [PATCH 2/2] x86/KASLR/64: Determine kernel text mapping size at runtime |
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Thanks, have changed. Will repost after i386 test is OK.
On 12/08/16 at 05:41pm, kbuild test robot wrote: > Hi Baoquan, > > [auto build test ERROR on tip/x86/core] > [also build test ERROR on v4.9-rc8 next-20161208] > [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/Baoquan-He/Determine-kernel-text-mapping-size-at-runtime-for-x86_64/20161208-172019 > config: x86_64-randconfig-x017-201649 (attached as .config) > compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 > reproduce: > # save the attached .config to linux build tree > make ARCH=x86_64 > > All error/warnings (new ones prefixed by >>): > > In file included from arch/x86/include/asm/page_types.h:47:0, > from arch/x86/include/asm/page.h:8, > from arch/x86/include/asm/thread_info.h:11, > from include/linux/thread_info.h:58, > from arch/x86/include/asm/preempt.h:6, > from include/linux/preempt.h:59, > from include/linux/spinlock.h:50, > from include/linux/seqlock.h:35, > from include/linux/time.h:5, > from include/uapi/linux/timex.h:56, > from include/linux/timex.h:56, > from include/linux/sched.h:19, > from arch/x86/kernel/setup.c:24: > arch/x86/kernel/setup.c: In function 'dump_kernel_offset': > arch/x86/include/asm/page_64_types.h:67:29: error: 'kernel_mapping_size' undeclared (first use in this function) > #define KERNEL_MAPPING_SIZE kernel_mapping_size > ^ > >> arch/x86/include/asm/pgtable_64_types.h:69:48: note: in expansion of macro 'KERNEL_MAPPING_SIZE' > #define MODULES_VADDR (__START_KERNEL_map + KERNEL_MAPPING_SIZE) > ^~~~~~~~~~~~~~~~~~~ > >> include/linux/printk.h:271:35: note: in expansion of macro 'MODULES_VADDR' > printk(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__) > ^~~~~~~~~~~ > >> arch/x86/kernel/setup.c:826:3: note: in expansion of macro 'pr_emerg' > pr_emerg("Kernel Offset: 0x%lx from 0x%lx (relocation range: 0x%lx-0x%lx)\n", > ^~~~~~~~ > arch/x86/include/asm/page_64_types.h:67:29: note: each undeclared identifier is reported only once for each function it appears in > #define KERNEL_MAPPING_SIZE kernel_mapping_size > ^ > >> arch/x86/include/asm/pgtable_64_types.h:69:48: note: in expansion of macro 'KERNEL_MAPPING_SIZE' > #define MODULES_VADDR (__START_KERNEL_map + KERNEL_MAPPING_SIZE) > ^~~~~~~~~~~~~~~~~~~ > >> include/linux/printk.h:271:35: note: in expansion of macro 'MODULES_VADDR' > printk(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__) > ^~~~~~~~~~~ > >> arch/x86/kernel/setup.c:826:3: note: in expansion of macro 'pr_emerg' > pr_emerg("Kernel Offset: 0x%lx from 0x%lx (relocation range: 0x%lx-0x%lx)\n", > ^~~~~~~~ > -- > In file included from include/uapi/linux/stddef.h:1:0, > from include/linux/stddef.h:4, > from include/uapi/linux/posix_types.h:4, > from include/uapi/linux/types.h:13, > from include/linux/types.h:5, > from include/linux/list.h:4, > from include/linux/module.h:9, > from include/linux/moduleloader.h:5, > from arch/x86/kernel/module.c:21: > arch/x86/kernel/module.c: In function 'module_alloc': > arch/x86/include/asm/page_64_types.h:67:29: error: 'kernel_mapping_size' undeclared (first use in this function) > #define KERNEL_MAPPING_SIZE kernel_mapping_size > ^ > include/linux/compiler.h:149:30: note: in definition of macro '__trace_if' > if (__builtin_constant_p(!!(cond)) ? !!(cond) : \ > ^~~~ > >> arch/x86/kernel/module.c:83:2: note: in expansion of macro 'if' > if (PAGE_ALIGN(size) > MODULES_LEN) > ^~ > >> arch/x86/include/asm/pgtable_64_types.h:69:48: note: in expansion of macro 'KERNEL_MAPPING_SIZE' > #define MODULES_VADDR (__START_KERNEL_map + KERNEL_MAPPING_SIZE) > ^~~~~~~~~~~~~~~~~~~ > >> arch/x86/include/asm/pgtable_64_types.h:71:38: note: in expansion of macro 'MODULES_VADDR' > #define MODULES_LEN (MODULES_END - MODULES_VADDR) > ^~~~~~~~~~~~~ > >> arch/x86/kernel/module.c:83:25: note: in expansion of macro 'MODULES_LEN' > if (PAGE_ALIGN(size) > MODULES_LEN) > ^~~~~~~~~~~ > arch/x86/include/asm/page_64_types.h:67:29: note: each undeclared identifier is reported only once for each function it appears in > #define KERNEL_MAPPING_SIZE kernel_mapping_size > ^ > include/linux/compiler.h:149:30: note: in definition of macro '__trace_if' > if (__builtin_constant_p(!!(cond)) ? !!(cond) : \ > ^~~~ > >> arch/x86/kernel/module.c:83:2: note: in expansion of macro 'if' > if (PAGE_ALIGN(size) > MODULES_LEN) > ^~ > >> arch/x86/include/asm/pgtable_64_types.h:69:48: note: in expansion of macro 'KERNEL_MAPPING_SIZE' > #define MODULES_VADDR (__START_KERNEL_map + KERNEL_MAPPING_SIZE) > ^~~~~~~~~~~~~~~~~~~ > >> arch/x86/include/asm/pgtable_64_types.h:71:38: note: in expansion of macro 'MODULES_VADDR' > #define MODULES_LEN (MODULES_END - MODULES_VADDR) > ^~~~~~~~~~~~~ > >> arch/x86/kernel/module.c:83:25: note: in expansion of macro 'MODULES_LEN' > if (PAGE_ALIGN(size) > MODULES_LEN) > ^~~~~~~~~~~ > -- > In file included from include/linux/linkage.h:4:0, > from include/linux/preempt.h:9, > from include/linux/spinlock.h:50, > from include/linux/mmzone.h:7, > from include/linux/bootmem.h:7, > from arch/x86/mm/physaddr.c:1: > arch/x86/mm/physaddr.c: In function '__virt_addr_valid': > arch/x86/include/asm/page_64_types.h:67:29: error: 'kernel_mapping_size' undeclared (first use in this function) > #define KERNEL_MAPPING_SIZE kernel_mapping_size > ^ > include/linux/compiler.h:149:30: note: in definition of macro '__trace_if' > if (__builtin_constant_p(!!(cond)) ? !!(cond) : \ > ^~~~ > >> arch/x86/mm/physaddr.c:53:3: note: in expansion of macro 'if' > if (y >= KERNEL_MAPPING_SIZE) > ^~ > >> arch/x86/mm/physaddr.c:53:12: note: in expansion of macro 'KERNEL_MAPPING_SIZE' > if (y >= KERNEL_MAPPING_SIZE) > ^~~~~~~~~~~~~~~~~~~ > arch/x86/include/asm/page_64_types.h:67:29: note: each undeclared identifier is reported only once for each function it appears in > #define KERNEL_MAPPING_SIZE kernel_mapping_size > ^ > include/linux/compiler.h:149:30: note: in definition of macro '__trace_if' > if (__builtin_constant_p(!!(cond)) ? !!(cond) : \ > ^~~~ > >> arch/x86/mm/physaddr.c:53:3: note: in expansion of macro 'if' > if (y >= KERNEL_MAPPING_SIZE) > ^~ > >> arch/x86/mm/physaddr.c:53:12: note: in expansion of macro 'KERNEL_MAPPING_SIZE' > if (y >= KERNEL_MAPPING_SIZE) > ^~~~~~~~~~~~~~~~~~~ > -- > In file included from arch/x86/include/asm/page_types.h:47:0, > from arch/x86/include/asm/page.h:8, > from arch/x86/include/asm/thread_info.h:11, > from include/linux/thread_info.h:58, > from arch/x86/include/asm/preempt.h:6, > from include/linux/preempt.h:59, > from include/linux/spinlock.h:50, > from include/linux/wait.h:8, > from include/linux/fs.h:5, > from include/linux/debugfs.h:18, > from arch/x86/mm/dump_pagetables.c:15: > arch/x86/mm/dump_pagetables.c: In function 'pt_dump_init': > arch/x86/include/asm/page_64_types.h:67:29: error: 'kernel_mapping_size' undeclared (first use in this function) > #define KERNEL_MAPPING_SIZE kernel_mapping_size > ^ > >> arch/x86/include/asm/pgtable_64_types.h:69:48: note: in expansion of macro 'KERNEL_MAPPING_SIZE' > #define MODULES_VADDR (__START_KERNEL_map + KERNEL_MAPPING_SIZE) > ^~~~~~~~~~~~~~~~~~~ > >> arch/x86/mm/dump_pagetables.c:445:52: note: in expansion of macro 'MODULES_VADDR' > address_markers[MODULES_VADDR_NR].start_address = MODULES_VADDR; > ^~~~~~~~~~~~~ > arch/x86/include/asm/page_64_types.h:67:29: note: each undeclared identifier is reported only once for each function it appears in > #define KERNEL_MAPPING_SIZE kernel_mapping_size > ^ > >> arch/x86/include/asm/pgtable_64_types.h:69:48: note: in expansion of macro 'KERNEL_MAPPING_SIZE' > #define MODULES_VADDR (__START_KERNEL_map + KERNEL_MAPPING_SIZE) > ^~~~~~~~~~~~~~~~~~~ > >> arch/x86/mm/dump_pagetables.c:445:52: note: in expansion of macro 'MODULES_VADDR' > address_markers[MODULES_VADDR_NR].start_address = MODULES_VADDR; > ^~~~~~~~~~~~~ > > vim +/kernel_mapping_size +67 arch/x86/include/asm/page_64_types.h > > 61 * the next 1GiB (see level2_kernel_pgt in arch/x86/kernel/head_64.S). > 62 * Use 512MiB by default, leaving 1.5GiB for modules once the page tables > 63 * are fully set up. If kernel ASLR is configured, it can extend the > 64 * kernel page table mapping, reducing the size of the modules area. > 65 */ > 66 #define KERNEL_MAPPING_SIZE_EXT (1024 * 1024 * 1024) > > 67 #define KERNEL_MAPPING_SIZE kernel_mapping_size > 68 > 69 #endif /* _ASM_X86_PAGE_64_DEFS_H */ > > --- > 0-DAY kernel test infrastructure Open Source Technology Center > https://lists.01.org/pipermail/kbuild-all Intel Corporation
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