Cross-Compilation de module

Salut,

Voila j'ai écrit un simple module linux que j'ai tester sur ma machine (x86) j'aimerais désormais pouvoir la tester sur une autre architecture, typiquement sur un arm920T.

J'ai donc utiliser une chaîne de compilation croisée arm-linux-cs2009q3-67 (de chez codesourcery) mais à la compilation j'obtiens deux erreurs :

Code:

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$make ARCH=arm CROSS_COMPILE=arm-none-linux-gnueabi-
make -C /lib/modules/2.6.32-27-generic/build M=/home/xxx/xxx/arg_mdl modules
make[1]: Entering directory `/usr/src/linux-headers-2.6.32-27-generic'
  CC [M]  /home/xxx/xxx/arg_mdl/mdlarg.o
In file included from include/linux/prefetch.h:14,
                 from include/linux/list.h:6,
                 from include/linux/module.h:9,
                 from /home/xxx/xxx/arg_mdl/mdlarg.c:1:
/usr/src/linux-headers-2.6.32-27-generic/arch/arm/include/asm/processor.h:110: warning: "__LINUX_ARM_ARCH__" is not defined
In file included from include/linux/irqflags.h:57,
                 from /usr/src/linux-headers-2.6.32-27-generic/arch/arm/include/asm/system.h:61,
                 from include/linux/list.h:7,
                 from include/linux/module.h:9,
                 from /home/xxx/xxx/arg_mdl/mdlarg.c:1:
/usr/src/linux-headers-2.6.32-27-generic/arch/arm/include/asm/irqflags.h:11: warning: "__LINUX_ARM_ARCH__" is not defined
In file included from include/linux/list.h:7,
                 from include/linux/module.h:9,
                 from /home/xxx/xxx/arg_mdl/mdlarg.c:1:
/usr/src/linux-headers-2.6.32-27-generic/arch/arm/include/asm/system.h:111: warning: "__LINUX_ARM_ARCH__" is not defined
/usr/src/linux-headers-2.6.32-27-generic/arch/arm/include/asm/system.h:117: warning: "__LINUX_ARM_ARCH__" is not defined
/usr/src/linux-headers-2.6.32-27-generic/arch/arm/include/asm/system.h:121: warning: "__LINUX_ARM_ARCH__" is not defined
/usr/src/linux-headers-2.6.32-27-generic/arch/arm/include/asm/system.h: In function '__xchg':
/usr/src/linux-headers-2.6.32-27-generic/arch/arm/include/asm/system.h:247: warning: "__LINUX_ARM_ARCH__" is not defined
/usr/src/linux-headers-2.6.32-27-generic/arch/arm/include/asm/system.h:254: warning: "__LINUX_ARM_ARCH__" is not defined
In file included from include/linux/list.h:7,
                 from include/linux/module.h:9,
                 from /home/xxx/xxx/arg_mdl/mdlarg.c:1:
/usr/src/linux-headers-2.6.32-27-generic/arch/arm/include/asm/system.h: At top level:
/usr/src/linux-headers-2.6.32-27-generic/arch/arm/include/asm/system.h:322: warning: "__LINUX_ARM_ARCH__" is not defined
/usr/src/linux-headers-2.6.32-27-generic/arch/arm/include/asm/system.h:325: error: #error "SMP is not supported on this platform"
In file included from include/linux/module.h:9,
                 from /home/xxx/xxx/arg_mdl/mdlarg.c:1:
include/linux/list.h: In function 'list_del':
include/linux/list.h:106: error: implicit declaration of function '_AC'
include/linux/list.h:106: error: 'UL' undeclared (first use in this function)
include/linux/list.h:106: error: (Each undeclared identifier is reported only once
include/linux/list.h:106: error: for each function it appears in.)
include/linux/list.h: In function 'hlist_del':
include/linux/list.h:579: error: 'UL' undeclared (first use in this function)
In file included from include/linux/bitops.h:17,
                 from include/linux/kernel.h:15,
                 from include/linux/cache.h:4,
                 from include/linux/time.h:7,
                 from include/linux/stat.h:60,
                 from include/linux/module.h:10,
                 from /home/xxx/xxx/arg_mdl/mdlarg.c:1:
/usr/src/linux-headers-2.6.32-27-generic/arch/arm/include/asm/bitops.h: At top level:
/usr/src/linux-headers-2.6.32-27-generic/arch/arm/include/asm/bitops.h:237: warning: "__LINUX_ARM_ARCH__" is not defined
In file included from include/linux/kernel.h:15,
                 from include/linux/cache.h:4,
                 from include/linux/time.h:7,
                 from include/linux/stat.h:60,
                 from include/linux/module.h:10,
                 from /home/xxx/xxx/arg_mdl/mdlarg.c:1:
include/linux/bitops.h:144: error: conflicting types for '_find_first_bit_le'
/usr/src/linux-headers-2.6.32-27-generic/arch/arm/include/asm/bitops.h:162: note: previous declaration of '_find_first_bit_le' was here
include/linux/bitops.h:154: error: conflicting types for '_find_first_zero_bit_le'
/usr/src/linux-headers-2.6.32-27-generic/arch/arm/include/asm/bitops.h:160: note: previous declaration of '_find_first_zero_bit_le' was here
include/linux/bitops.h:178: error: conflicting types for '_find_next_bit_le'
/usr/src/linux-headers-2.6.32-27-generic/arch/arm/include/asm/bitops.h:163: note: previous declaration of '_find_next_bit_le' was here
include/linux/bitops.h:188: error: conflicting types for '_find_next_zero_bit_le'
/usr/src/linux-headers-2.6.32-27-generic/arch/arm/include/asm/bitops.h:161: note: previous declaration of '_find_next_zero_bit_le' was here
In file included from /usr/src/linux-headers-2.6.32-27-generic/arch/arm/include/asm/thread_info.h:16,
                 from include/linux/thread_info.h:56,
                 from include/linux/preempt.h:9,
                 from include/linux/spinlock.h:50,
                 from include/linux/seqlock.h:29,
                 from include/linux/time.h:8,
                 from include/linux/stat.h:60,
                 from include/linux/module.h:10,
                 from /home/xxx/xxx/arg_mdl/mdlarg.c:1:
/usr/src/linux-headers-2.6.32-27-generic/arch/arm/include/asm/fpstate.h:32: warning: "__LINUX_ARM_ARCH__" is not defined
In file included from include/linux/spinlock.h:88,
                 from include/linux/seqlock.h:29,
                 from include/linux/time.h:8,
                 from include/linux/stat.h:60,
                 from include/linux/module.h:10,
                 from /home/xxx/xxx/arg_mdl/mdlarg.c:1:
/usr/src/linux-headers-2.6.32-27-generic/arch/arm/include/asm/spinlock.h:4: warning: "__LINUX_ARM_ARCH__" is not defined
/usr/src/linux-headers-2.6.32-27-generic/arch/arm/include/asm/spinlock.h:5: error: #error SMP not supported on pre-ARMv6 CPUs
In file included from include/linux/spinlock.h:321,
                 from include/linux/seqlock.h:29,
                 from include/linux/time.h:8,
                 from include/linux/stat.h:60,
                 from include/linux/module.h:10,
                 from /home/xxx/xxx/arg_mdl/mdlarg.c:1:
/usr/src/linux-headers-2.6.32-27-generic/arch/arm/include/asm/atomic.h:30: warning: "__LINUX_ARM_ARCH__" is not defined
/usr/src/linux-headers-2.6.32-27-generic/arch/arm/include/asm/atomic.h:153: error: #error SMP not supported on pre-ARMv6 CPUs
In file included from include/linux/time.h:9,
                 from include/linux/stat.h:60,
                 from include/linux/module.h:10,
                 from /home/xxx/xxx/arg_mdl/mdlarg.c:1:
include/linux/math64.h: In function 'div_u64_rem':
include/linux/math64.h:43: error: '__LINUX_ARM_ARCH__' undeclared (first use in this function)
In file included from /usr/src/linux-headers-2.6.32-27-generic/arch/arm/include/asm/page.h:26,
                 from include/linux/mmzone.h:20,
                 from include/linux/gfp.h:4,
                 from include/linux/kmod.h:22,
                 from include/linux/module.h:13,
                 from /home/xxx/xxxx/arg_mdl/mdlarg.c:1:
/usr/src/linux-headers-2.6.32-27-generic/arch/arm/include/asm/glue.h: At top level:
/usr/src/linux-headers-2.6.32-27-generic/arch/arm/include/asm/glue.h:119: error: #error Unknown data abort handler type
/usr/src/linux-headers-2.6.32-27-generic/arch/arm/include/asm/glue.h:160: error: #error Unknown prefetch abort handler type
In file included from include/linux/mmzone.h:20,
                 from include/linux/gfp.h:4,
                 from include/linux/kmod.h:22,
                 from include/linux/module.h:13,
                 from /home/xxx/xxx/arg_mdl/mdlarg.c:1:
/usr/src/linux-headers-2.6.32-27-generic/arch/arm/include/asm/page.h:116: error: #error Unknown user operations model
In file included from /usr/src/linux-headers-2.6.32-27-generic/arch/arm/include/asm/page.h:201,
                 from include/linux/mmzone.h:20,
                 from include/linux/gfp.h:4,
                 from include/linux/kmod.h:22,
                 from include/linux/module.h:13,
                 from /home/xxx/xxx/arg_mdl/mdlarg.c:1:
/usr/src/linux-headers-2.6.32-27-generic/arch/arm/include/asm/memory.h:18: fatal error: mach/memory.h: No such file or directory
compilation terminated.
make[2]: *** [/home/xxx/xxx/arg_mdl/mdlarg.o] Error 1
make[1]: *** [_module_/home/xxx/xxx/arg_mdl] Error 2
make[1]: Leaving directory `/usr/src/linux-headers-2.6.32-27-generic'
make: *** [all] Error 2

J'ai googueler un peu mais sans trouver de réel solutions ... je m'en remet donc à une âme charitable qui aurais une solutions quel quel soit pour cross compiler mon module pour une cible arm.

Merci pour toutes vos réponses. :)
Bien Cordialement.

Bonjour,

A priori (méthode naïve) il faut définir '__LINUX_ARM_ARCH__' qui peut se faire en ajoutant une ligne du genre

Code:

#define __LINUX_ARM_ARCH__ definition

Encore faudrait il savoir quoi mettre pour definition
De plus, le fait de rajouter un #define est un peu faux, mais donne la solution rapidement. Normalement, la variable devrait être définie à l'aide d'un ./configure ou autre script automatisé.

Citation:

Envoyé par LittleWhite

Bonjour,

A priori (méthode naïve) il faut définir '__LINUX_ARM_ARCH__' qui peut se faire en ajoutant une ligne du genre

Code:

#define __LINUX_ARM_ARCH__ definition

Encore faudrait il savoir quoi mettre pour definition
De plus, le fait de rajouter un #define est un peu faux, mais donne la solution rapidement. Normalement, la variable devrait être définie à l'aide d'un ./configure ou autre script automatisé.

Salut,

J'ai tester ta solution mais malheureusement sans effet :( il semblerait que des fichier d'entête manquent à l'appel dans le répertoire asm ???

J'ai lue quelques messages ou il s'agissait de recompiler le noyau pour les implémenter(headers), sans vraiment bien comprendre pourquoi?

Cordialement.

Re,

J'ai donc compris mon erreur, je compilais mes modules avec des sources incompatibles ( pour une cible ARM).
J'ai donc recompiler un noyau pour ma cible, c'est aussi simple que sa !:cry:

Voila en espérant pouvoir aider un autre débutant maladroit comme moi :P !

@+