Re: [PATCH 7/7] Create generated/random_init.h, used by random driver

2015-11-08 Thread kbuild test robot 
Hi Sandy,

[auto build test ERROR on: char-misc/char-misc-testing]
[also build test ERROR on: v4.3 next-20151106]

url:
https://github.com/0day-ci/linux/commits/Sandy-Harris/A-couple-of-generated-files/20151107-223540
config: mips-allyesconfig (attached as .config)
reproduce:
wget 
https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross
 -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=mips 

All errors (new ones prefixed by >>):

>> /bin/sh: scripts/gen_random: cannot execute binary file: Exec format error
   make[2]: *** [include/generated/random_init.h] Error 126
   make[2]: Target '__build' not remade because of errors.
   make[1]: *** [prepare0] Error 2
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [sub-make] Error 2

---
0-DAY kernel test infrastructureOpen Source Technology Center
https://lists.01.org/pipermail/kbuild-all   Intel Corporation


.config.gz
Description: Binary data

[PATCH 7/7] Create generated/random_init.h, used by random driver

2015-11-07 Thread Sandy Harris 
Signed-off-by: Sandy Harris 
---
 Kbuild   | 21 +
 scripts/Makefile |  1 +
 2 files changed, 22 insertions(+)

diff --git a/Kbuild b/Kbuild
index f55cefd..494c665 100644
--- a/Kbuild
+++ b/Kbuild
@@ -5,6 +5,7 @@
 # 2) Generate timeconst.h
 # 3) Generate asm-offsets.h (may need bounds.h and timeconst.h)
 # 4) Check for missing system calls
+# 5) Generate random_init.h
 
 # Default sed regexp - multiline due to syntax constraints
 define sed-y
@@ -98,3 +99,23 @@ missing-syscalls: scripts/checksyscalls.sh $(offsets-file) 
FORCE
 
 # Keep these three files during make clean
 no-clean-files := $(bounds-file) $(offsets-file) $(timeconst-file)
+
+#
+# 5) Generate random_init.h
+
+ifdef CONFIG_RANDOM_INIT
+init-file := include/generated/random_init.h
+used-file := scripts/gen_random
+source-file := $(used-file).c
+always  += $(init-file)
+targets  += $(init-file)
+$(init-file) : $(used-file)
+   $(Q) $(used-file) > $(init-file)
+ifdef CONFIG_RANDOM_GCM
+$(used-file) : $(source-file)
+   $(CC) $< -DCONFIG_RANDOM_GCM -o $@
+else
+$(used-file) : $(source-file)
+   $(CC) $< -o $@
+endif
+endif
diff --git a/scripts/Makefile b/scripts/Makefile
index 1b26617..3cea546 100644
--- a/scripts/Makefile
+++ b/scripts/Makefile
@@ -18,6 +18,7 @@ hostprogs-$(CONFIG_BUILDTIME_EXTABLE_SORT) += sortextable
 hostprogs-$(CONFIG_ASN1)+= asn1_compiler
 hostprogs-$(CONFIG_MODULE_SIG)  += sign-file
 hostprogs-$(CONFIG_SYSTEM_TRUSTED_KEYRING) += extract-cert
+hostprogs-$(CONFIG_RANDOM_INIT) += gen_random
 
 HOSTCFLAGS_sortextable.o = -I$(srctree)/tools/include
 HOSTCFLAGS_asn1_compiler.o = -I$(srctree)/include
-- 
2.5.0

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Re: [PATCH 7/7] Create generated/random_init.h, used by random driver

2015-11-07 Thread kbuild test robot 
Hi Sandy,

[auto build test ERROR on: char-misc/char-misc-testing]
[also build test ERROR on: v4.3 next-20151106]

url:
https://github.com/0day-ci/linux/commits/Sandy-Harris/A-couple-of-generated-files/20151107-223540
config: x86_64-allmodconfig (attached as .config)
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64 

All error/warnings (new ones prefixed by >>):

   drivers/char/random_gcm.c:2366:28: sparse: non-ANSI function declaration of 
function 'mix_const_all'
   drivers/char/random_gcm.c:2379:21: sparse: non-ANSI function declaration of 
function 'big_mix'
   drivers/char/random_gcm.c:2443:21: sparse: non-ANSI function declaration of 
function 'top_mix'
   drivers/char/random_gcm.c:2518:26: sparse: non-ANSI function declaration of 
function 'clear_addmul'
   drivers/char/random_gcm.c:3208:25: sparse: non-ANSI function declaration of 
function 'init_random'
   drivers/char/random_gcm.c:3571:26: sparse: non-ANSI function declaration of 
function 'counter_any'
   drivers/char/random_gcm.c:3652:23: sparse: non-ANSI function declaration of 
function 'load_input'
   drivers/char/random_gcm.c:3702:27: sparse: non-ANSI function declaration of 
function 'load_constants'
   drivers/char/random_gcm.c:477:14: sparse: undefined identifier 'constants'
   drivers/char/random_gcm.c:478:14: sparse: undefined identifier 'constants'
   drivers/char/random_gcm.c:496:14: sparse: undefined identifier 'constants'
   drivers/char/random_gcm.c:497:14: sparse: undefined identifier 'constants'
   drivers/char/random_gcm.c:514:14: sparse: undefined identifier 'constants'
   drivers/char/random_gcm.c:515:14: sparse: undefined identifier 'constants'
   drivers/char/random_gcm.c:530:14: sparse: undefined identifier 'constants'
   drivers/char/random_gcm.c:531:14: sparse: undefined identifier 'constants'
   drivers/char/random_gcm.c:3471:25: sparse: undefined identifier 'counter'
   drivers/char/random_gcm.c:3474:25: sparse: undefined identifier 'counter'
   drivers/char/random_gcm.c:3477:25: sparse: undefined identifier 'counter'
   drivers/char/random_gcm.c:3488:25: sparse: undefined identifier 'counter'
   drivers/char/random_gcm.c:3495:25: sparse: undefined identifier 'counter'
   drivers/char/random_gcm.c:3496:25: sparse: undefined identifier 'counter'
   drivers/char/random_gcm.c:3497:25: sparse: undefined identifier 'counter'
   drivers/char/random_gcm.c:3517:9: sparse: undefined identifier 'counter'
   drivers/char/random_gcm.c:3541:9: sparse: undefined identifier 'counter'
   drivers/char/random_gcm.c:3547:17: sparse: undefined identifier 'counter'
   drivers/char/random_gcm.c:3555:24: sparse: undefined identifier 'counter'
   drivers/char/random_gcm.c:3555:58: sparse: undefined identifier 'counter'
   drivers/char/random_gcm.c:3555:51: sparse: cast from unknown type
   drivers/char/random_gcm.c:3560:17: sparse: undefined identifier 'counter'
   drivers/char/random_gcm.c:3709:58: sparse: undefined identifier 'ARRAY_WORDS'
   drivers/char/random_gcm.c:3709:25: sparse: undefined identifier 'constants'
   drivers/char/random_gcm.c:2371:19: sparse: undefined identifier 'constants'
   drivers/char/random_gcm.c:2652:38: sparse: undefined identifier 'counter'
>> drivers/char/random_gcm.c:477:7: error: 'constants' undeclared here (not in 
>> a function)
 .A = constants,
  ^
   drivers/char/random_gcm.c: In function 'mix_first':
>> drivers/char/random_gcm.c:2652:31: error: 'counter' undeclared (first use in 
>> this function)
 addmul( (u8 *) accum, (u8 *) counter, 16, (u8 *) r->B) ;
  ^
   drivers/char/random_gcm.c:2652:31: note: each undeclared identifier is 
reported only once for each function it appears in
   drivers/char/random_gcm.c: In function 'count':
   drivers/char/random_gcm.c:3471:4: error: 'counter' undeclared (first use in 
this function)
   counter[1] += counter[3] ;
   ^
   drivers/char/random_gcm.c: In function 'buffer2counter':
   drivers/char/random_gcm.c:3541:2: error: 'counter' undeclared (first use in 
this function)
 counter[0] ^= jiffies ;
 ^
   drivers/char/random_gcm.c: In function 'load_constants':
>> drivers/char/random_gcm.c:3709:27: warning: left-hand operand of comma 
>> expression has no effect [-Wunused-value]
 for( i = 0, p = constants, ret = 1 ; ret && (i < ARRAY_WORDS) ; i++, p++ ) 
{
  ^
>> drivers/char/random_gcm.c:3709:51: error: 'ARRAY_WORDS' undeclared (first 
>> use in this function)
 for( i = 0, p = constants, ret = 1 ; ret && (i < ARRAY_WORDS) ; i++, p++ ) 
{
  ^

sparse warnings: (new ones prefixed by >>)

   drivers/char/random_gcm.c:2366:28: sparse: non-ANSI function declaration of 
function 'mix_const_all'
   drivers/char/random_gcm.c:2379:21: sparse: non-ANSI function declaration of 
function 'big_mix'
   drivers/char/random_gcm.c:2443:21: sparse: non-ANSI function declaration of

Re: [PATCH 7/7] Create generated/random_init.h, used by random driver

2015-11-07 Thread kbuild test robot 
Hi Sandy,

[auto build test ERROR on: char-misc/char-misc-testing]
[also build test ERROR on: v4.3 next-20151106]

url:
https://github.com/0day-ci/linux/commits/Sandy-Harris/A-couple-of-generated-files/20151107-223540
config: sh-allyesconfig (attached as .config)
reproduce:
wget 
https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/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 >>):

>> scripts/gen_random.c:61:19: fatal error: stdio.h: No such file or directory
   compilation terminated.
   make[2]: *** [scripts/gen_random] Error 1
   :1229:2: warning: #warning syscall sched_setattr not implemented 
[-Wcpp]
   :1232:2: warning: #warning syscall sched_getattr not implemented 
[-Wcpp]
   :1235:2: warning: #warning syscall renameat2 not implemented [-Wcpp]
   :1238:2: warning: #warning syscall seccomp not implemented [-Wcpp]
   :1241:2: warning: #warning syscall getrandom not implemented [-Wcpp]
   :1244:2: warning: #warning syscall memfd_create not implemented 
[-Wcpp]
   :1247:2: warning: #warning syscall bpf not implemented [-Wcpp]
   :1250:2: warning: #warning syscall execveat not implemented [-Wcpp]
   :1298:2: warning: #warning syscall userfaultfd not implemented [-Wcpp]
   :1301:2: warning: #warning syscall membarrier not implemented [-Wcpp]
   make[2]: Target '__build' not remade because of errors.
   make[1]: *** [prepare0] Error 2
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [sub-make] Error 2

vim +61 scripts/gen_random.c

06038f35 Sandy Harris 2015-11-07  45   * This is certainly done early enough 
and the data is random
06038f35 Sandy Harris 2015-11-07  46   * enough, but it is not necessarily 
secret enough.
06038f35 Sandy Harris 2015-11-07  47   *
06038f35 Sandy Harris 2015-11-07  48   * In some cases -- for example, a 
firewall machine that compiles
06038f35 Sandy Harris 2015-11-07  49   * its own kernel -- this alone might be 
enough to ensure secure
06038f35 Sandy Harris 2015-11-07  50   * initialisation, since only an enemy 
who already has root could
06038f35 Sandy Harris 2015-11-07  51   * discover this data. Of course even in 
those cases it should not
06038f35 Sandy Harris 2015-11-07  52   * be used alone, only as one layer of a 
defense in depth.
06038f35 Sandy Harris 2015-11-07  53   *
06038f35 Sandy Harris 2015-11-07  54   * In other cases -- a kernel that is 
compiled once then used in
06038f35 Sandy Harris 2015-11-07  55   * a Linux distro or installed on many 
devices -- this is likely
06038f35 Sandy Harris 2015-11-07  56   * of very little value. It complicates 
an attack somewhat, but
06038f35 Sandy Harris 2015-11-07  57   * it clearly will not stop a serious 
attacker and may not even
06038f35 Sandy Harris 2015-11-07  58   * slow them down much.
06038f35 Sandy Harris 2015-11-07  59   */
06038f35 Sandy Harris 2015-11-07  60  
06038f35 Sandy Harris 2015-11-07 @61  #include 
06038f35 Sandy Harris 2015-11-07  62  #include 
06038f35 Sandy Harris 2015-11-07  63  #include 
06038f35 Sandy Harris 2015-11-07  64  #include 
06038f35 Sandy Harris 2015-11-07  65  #include 
06038f35 Sandy Harris 2015-11-07  66  #include 
06038f35 Sandy Harris 2015-11-07  67  
06038f35 Sandy Harris 2015-11-07  68  /*
06038f35 Sandy Harris 2015-11-07  69   * Configuration information

:: The code at line 61 was first introduced by commit
:: 06038f35641185897feb14917d89d03fab1710ba Produces 
generated/random_init.h for random driver

:: TO: Sandy Harris 
:: CC: 0day robot 

---
0-DAY kernel test infrastructureOpen Source Technology Center
https://lists.01.org/pipermail/kbuild-all   Intel Corporation


.config.gz
Description: Binary data