Re: [PATCH v2] module: use relative references for __ksymtab entries
Hi Ard,
[auto build test ERROR on linus/master]
[also build test ERROR on v4.13-rc3 next-20170804]
[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/Ard-Biesheuvel/module-use-relative-references-for-__ksymtab-entries/20170806-205309
config: x86_64-allyesdebian (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 include/asm-generic/percpu.h:6:0,
from arch/x86/include/asm/percpu.h:542,
from arch/x86/include/asm/preempt.h:5,
from include/linux/preempt.h:80,
from include/linux/spinlock.h:50,
from include/linux/mmzone.h:7,
from include/linux/gfp.h:5,
from include/linux/slab.h:14,
from kernel/fork.c:14:
>> include/linux/percpu-defs.h:92:26: error: __pcpu_unique_cached_stacks causes
>> a section type conflict with __discard_lockdep_tasklist_lock_is_held
__PCPU_DUMMY_ATTRS char __pcpu_unique_##name; \
^
include/linux/percpu-defs.h:116:2: note: in expansion of macro
'DEFINE_PER_CPU_SECTION'
DEFINE_PER_CPU_SECTION(type, name, "")
^~
kernel/fork.c:181:8: note: in expansion of macro 'DEFINE_PER_CPU'
static DEFINE_PER_CPU(struct vm_struct *, cached_stacks[NR_CACHED_STACKS]);
^~
In file included from include/linux/linkage.h:6:0,
from include/linux/kernel.h:6,
from include/asm-generic/bug.h:15,
from arch/x86/include/asm/bug.h:81,
from include/linux/bug.h:4,
from include/linux/mmdebug.h:4,
from include/linux/gfp.h:4,
from include/linux/slab.h:14,
from kernel/fork.c:14:
include/linux/export.h:71:4: note: '__discard_lockdep_tasklist_lock_is_held'
was declared here
__discard_##sym(void) { return (void *)&sym; } \
^
include/linux/export.h:104:25: note: in expansion of macro '___EXPORT_SYMBOL'
#define __EXPORT_SYMBOL ___EXPORT_SYMBOL
^~~~
include/linux/export.h:111:2: note: in expansion of macro '__EXPORT_SYMBOL'
__EXPORT_SYMBOL(sym, "_gpl")
^~~
kernel/fork.c:131:1: note: in expansion of macro 'EXPORT_SYMBOL_GPL'
EXPORT_SYMBOL_GPL(lockdep_tasklist_lock_is_held);
^
--
In file included from include/asm-generic/percpu.h:6:0,
from arch/x86/include/asm/percpu.h:542,
from arch/x86/include/asm/preempt.h:5,
from include/linux/preempt.h:80,
from include/linux/spinlock.h:50,
from include/linux/mmzone.h:7,
from include/linux/gfp.h:5,
from include/linux/slab.h:14,
from mm/slab.c:89:
>> include/linux/percpu-defs.h:92:26: error: __pcpu_unique_slab_reap_node
>> causes a section type conflict with __discard_kmem_cache_alloc
__PCPU_DUMMY_ATTRS char __pcpu_unique_##name; \
^
include/linux/percpu-defs.h:116:2: note: in expansion of macro
'DEFINE_PER_CPU_SECTION'
DEFINE_PER_CPU_SECTION(type, name, "")
^~
>> mm/slab.c:524:8: note: in expansion of macro 'DEFINE_PER_CPU'
static DEFINE_PER_CPU(unsigned long, slab_reap_node);
^~
In file included from include/linux/linkage.h:6:0,
from include/linux/kernel.h:6,
from include/asm-generic/bug.h:15,
from arch/x86/include/asm/bug.h:81,
from include/linux/bug.h:4,
from include/linux/mmdebug.h:4,
from include/linux/gfp.h:4,
from include/linux/slab.h:14,
from mm/slab.c:89:
include/linux/export.h:71:4: note: '__discard_kmem_cache_alloc' was declared
here
__discard_##sym(void) { return (void *)&sym; } \
^
include/linux/export.h:104:25: note: in expansion of macro '___EXPORT_SYMBOL'
#define __EXPORT_SYMBOL ___EXPORT_SYMBOL
^~~~
include/linux/export.h:108:2: note: in expansion of macro '__EXPORT_SYMBOL'
__EXPORT_SYMBOL(sym, "")
^~~
mm/slab.c:3567:1: note: in expansion of macro 'EXPORT_SYMBOL'
EXPORT_SYMBOL(kmem_cache_alloc);
^
vim +92 include/linux/percpu-defs.h
62fde541 Tejun Heo 2014-06-17 37
5028eaa9 David Howells 2009-04-21 38 /*
5028eaa9 David Howells 2009-04-21 39 * Base implementations of per-CPU
variable declarations and definitions, where
5028eaa9 Dav
Re: [PATCH v2] module: use relative references for __ksymtab entries
Hi Ard,
[auto build test ERROR on linus/master]
[also build test ERROR on v4.13-rc3 next-20170804]
[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/Ard-Biesheuvel/module-use-relative-references-for-__ksymtab-entries/20170806-205309
config: x86_64-allyesdebian (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 errors (new ones prefixed by >>):
In file included from include/asm-generic/percpu.h:6:0,
from arch/x86/include/asm/percpu.h:542,
from arch/x86/include/asm/current.h:5,
from include/linux/mutex.h:13,
from kernel//locking/lockdep.c:29:
>> include/linux/percpu-defs.h:92:26: error: __pcpu_unique_cpu_lock_stats
>> causes a section type conflict with __discard_lockdep_off
__PCPU_DUMMY_ATTRS char __pcpu_unique_##name; \
^
include/linux/percpu-defs.h:116:2: note: in expansion of macro
'DEFINE_PER_CPU_SECTION'
DEFINE_PER_CPU_SECTION(type, name, "")
^~
kernel//locking/lockdep.c:156:8: note: in expansion of macro 'DEFINE_PER_CPU'
static DEFINE_PER_CPU(struct lock_class_stats[MAX_LOCKDEP_KEYS],
cpu_lock_stats);
^~
In file included from include/linux/linkage.h:6:0,
from include/linux/kernel.h:6,
from arch/x86/include/asm/percpu.h:44,
from arch/x86/include/asm/current.h:5,
from include/linux/mutex.h:13,
from kernel//locking/lockdep.c:29:
include/linux/export.h:71:4: note: '__discard_lockdep_off' was declared here
__discard_##sym(void) { return (void *)&sym; } \
^
include/linux/export.h:104:25: note: in expansion of macro '___EXPORT_SYMBOL'
#define __EXPORT_SYMBOL ___EXPORT_SYMBOL
^~~~
include/linux/export.h:108:2: note: in expansion of macro '__EXPORT_SYMBOL'
__EXPORT_SYMBOL(sym, "")
^~~
kernel//locking/lockdep.c:329:1: note: in expansion of macro 'EXPORT_SYMBOL'
EXPORT_SYMBOL(lockdep_off);
^
--
In file included from include/asm-generic/percpu.h:6:0,
from arch/x86/include/asm/percpu.h:542,
from arch/x86/include/asm/current.h:5,
from include/linux/mutex.h:13,
from kernel///locking/lockdep.c:29:
>> include/linux/percpu-defs.h:92:26: error: __pcpu_unique_cpu_lock_stats
>> causes a section type conflict with __discard_lockdep_off
__PCPU_DUMMY_ATTRS char __pcpu_unique_##name; \
^
include/linux/percpu-defs.h:116:2: note: in expansion of macro
'DEFINE_PER_CPU_SECTION'
DEFINE_PER_CPU_SECTION(type, name, "")
^~
kernel///locking/lockdep.c:156:8: note: in expansion of macro
'DEFINE_PER_CPU'
static DEFINE_PER_CPU(struct lock_class_stats[MAX_LOCKDEP_KEYS],
cpu_lock_stats);
^~
In file included from include/linux/linkage.h:6:0,
from include/linux/kernel.h:6,
from arch/x86/include/asm/percpu.h:44,
from arch/x86/include/asm/current.h:5,
from include/linux/mutex.h:13,
from kernel///locking/lockdep.c:29:
include/linux/export.h:71:4: note: '__discard_lockdep_off' was declared here
__discard_##sym(void) { return (void *)&sym; } \
^
include/linux/export.h:104:25: note: in expansion of macro '___EXPORT_SYMBOL'
#define __EXPORT_SYMBOL ___EXPORT_SYMBOL
^~~~
include/linux/export.h:108:2: note: in expansion of macro '__EXPORT_SYMBOL'
__EXPORT_SYMBOL(sym, "")
^~~
kernel///locking/lockdep.c:329:1: note: in expansion of macro 'EXPORT_SYMBOL'
EXPORT_SYMBOL(lockdep_off);
^
vim +92 include/linux/percpu-defs.h
62fde541 Tejun Heo 2014-06-17 37
5028eaa9 David Howells 2009-04-21 38 /*
5028eaa9 David Howells 2009-04-21 39 * Base implementations of per-CPU
variable declarations and definitions, where
5028eaa9 David Howells 2009-04-21 40 * the section in which the variable is
to be placed is provided by the
7c756e6e Tejun Heo 2009-06-24 41 * 'sec' argument. This may be used to
affect the parameters governing the
5028eaa9 David Howells 2009-04-21 42 * variable's storage.
5028eaa9 David Howells 2009-04-21 43 *
5028eaa9 David Howells 2009-04-21 44 * NOTE! The sections for the DECLARE
and for the DEFINE must match, lest
5028eaa9 David Howells 2009-04-21 45 * linkage errors occur due the
compiler generating the wrong code to access
5028eaa9 David Howells 2009-04-21 46 * that section.
5028eaa9 David Ho
