diff options
| -rw-r--r-- | Makefile | 2 | ||||
| -rw-r--r-- | scripts/Makefile.modpost | 6 | ||||
| -rw-r--r-- | scripts/mod/file2alias.c | 4 | ||||
| -rw-r--r-- | scripts/mod/modpost.c | 5 | ||||
| -rw-r--r-- | scripts/mod/modpost.h | 1 |
5 files changed, 15 insertions, 3 deletions
@@ -189,7 +189,7 @@ SUBARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \ # Alternatively CROSS_COMPILE can be set in the environment. # Default value for CROSS_COMPILE is not to prefix executables # Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile - +export KBUILD_BUILDHOST := $(SUBARCH) ARCH ?= $(SUBARCH) CROSS_COMPILE ?= diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost index cfc004e..2d20640 100644 --- a/scripts/Makefile.modpost +++ b/scripts/Makefile.modpost @@ -58,6 +58,9 @@ modules := $(patsubst %.o,%.ko, $(wildcard $(__modules:.ko=.o))) # Stop after building .o files if NOFINAL is set. Makes compile tests quicker _modpost: $(if $(KBUILD_MODPOST_NOFINAL), $(modules:.ko:.o),$(modules)) +ifneq ($(KBUILD_BUILDHOST),$(ARCH)) + cross_build := 1 +endif # Step 2), invoke modpost # Includes step 3,4 @@ -70,7 +73,8 @@ modpost = scripts/mod/modpost \ $(if $(CONFIG_DEBUG_SECTION_MISMATCH),,-S) \ $(if $(CONFIG_MARKERS),-K $(kernelmarkersfile)) \ $(if $(CONFIG_MARKERS),-M $(markersfile)) \ - $(if $(KBUILD_EXTMOD)$(KBUILD_MODPOST_WARN),-w) + $(if $(KBUILD_EXTMOD)$(KBUILD_MODPOST_WARN),-w) \ + $(if $(cross_build),-c) quiet_cmd_modpost = MODPOST $(words $(filter-out vmlinux FORCE, $^)) modules cmd_modpost = $(modpost) -s diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c index 9ddf944..348d868 100644 --- a/scripts/mod/file2alias.c +++ b/scripts/mod/file2alias.c @@ -51,11 +51,13 @@ do { \ sprintf(str + strlen(str), "*"); \ } while(0) +unsigned int cross_build = 0; /** * Check that sizeof(device_id type) are consistent with size of section * in .o file. If in-consistent then userspace and kernel does not agree * on actual size which is a bug. * Also verify that the final entry in the table is all zeros. + * Ignore both checks if build host differ from target host and size differs. **/ static void device_id_check(const char *modname, const char *device_id, unsigned long size, unsigned long id_size, @@ -64,6 +66,8 @@ static void device_id_check(const char *modname, const char *device_id, int i; if (size % id_size || size < id_size) { + if (cross_build != 0) + return; fatal("%s: sizeof(struct %s_device_id)=%lu is not a modulo " "of the size of section __mod_%s_device_table=%lu.\n" "Fix definition of struct %s_device_id " diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c index 695b5d6..110cf24 100644 --- a/scripts/mod/modpost.c +++ b/scripts/mod/modpost.c @@ -2026,7 +2026,7 @@ int main(int argc, char **argv) int opt; int err; - while ((opt = getopt(argc, argv, "i:I:msSo:awM:K:")) != -1) { + while ((opt = getopt(argc, argv, "i:I:cmsSo:awM:K:")) != -1) { switch (opt) { case 'i': kernel_read = optarg; @@ -2035,6 +2035,9 @@ int main(int argc, char **argv) module_read = optarg; external_module = 1; break; + case 'c': + cross_build = 1; + break; case 'm': modversions = 1; break; diff --git a/scripts/mod/modpost.h b/scripts/mod/modpost.h index 565c587..09f58e3 100644 --- a/scripts/mod/modpost.h +++ b/scripts/mod/modpost.h @@ -135,6 +135,7 @@ struct elf_info { }; /* file2alias.c */ +extern unsigned int cross_build; void handle_moddevtable(struct module *mod, struct elf_info *info, Elf_Sym *sym, const char *symname); void add_moddevtable(struct buffer *buf, struct module *mod); |
