Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild

* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild:
  kbuild: fix first module build
  kconfig: update kconfig-language text
  kbuild: introduce cc-cross-prefix
  kbuild: disable depmod in cross-compile kernel build
  kbuild: make deb-pkg - add 'Provides:' line
  kconfig: comment typo in scripts/kconfig/Makefile.
  kbuild: stop docproc segfaulting when SRCTREE isn't set.
  kbuild: modpost problem when symbols move from one module to another
  kbuild: cscope - filter out .tmp_* in find_sources
  kbuild: mailing list has moved
  kbuild: check asm symlink when building a kernel

5 files changed, 26 insertions, 3 deletions

diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include
index de7bb284c611..b96ea8d6a5ed 100644
--- a/scripts/Kbuild.include
+++ b/scripts/Kbuild.include
@@ -56,6 +56,17 @@ endef
 # gcc support functions
 # See documentation in Documentation/kbuild/makefiles.txt
 
+# cc-cross-prefix
+# Usage: CROSS_COMPILE := $(call cc-cross-prefix, m68k-linux-gnu- m68k-linux-)
+# Return first prefix where a prefix$(CC) is found in PATH.
+# If no $(CC) found in PATH with listed prefixes return nothing
+cc-cross-prefix =  \
+        $(word 1, $(foreach c,$(1),                                   \
+                $(shell set -e;                                       \
+                if (which $(strip $(c))$(CC)) > /dev/null 2>&1 ; then \
+                        echo $(c);                                    \
+                fi)))
+
 # output directory for tests below
 TMPOUT := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/)
 
diff --git a/scripts/basic/docproc.c b/scripts/basic/docproc.c
index e5c6ac7bde9b..0e4bd5459df4 100644
--- a/scripts/basic/docproc.c
+++ b/scripts/basic/docproc.c
@@ -66,12 +66,15 @@ FILELINE * entity_system;
 #define FUNCTION      "-function"
 #define NOFUNCTION    "-nofunction"
 
+char *srctree;
+
 void usage (void)
 {
         fprintf(stderr, "Usage: docproc {doc|depend} file\n");
         fprintf(stderr, "Input is read from file.tmpl. Output is sent to stdout\n");
         fprintf(stderr, "doc: frontend when generating kernel documentation\n");
         fprintf(stderr, "depend: generate list of files referenced within file\n");
+        fprintf(stderr, "Environment variable SRCTREE: absolute path to kernel source tree.\n");
 }
 
 /*
@@ -90,7 +93,7 @@ void exec_kernel_doc(char **svec)
                         exit(1);
                 case  0:
                         memset(real_filename, 0, sizeof(real_filename));
-                        strncat(real_filename, getenv("SRCTREE"), PATH_MAX);
+                        strncat(real_filename, srctree, PATH_MAX);
                         strncat(real_filename, KERNELDOCPATH KERNELDOC,
                                         PATH_MAX - strlen(real_filename));
                         execvp(real_filename, svec);
@@ -171,7 +174,7 @@ void find_export_symbols(char * filename)
         if (filename_exist(filename) == NULL) {
                 char real_filename[PATH_MAX + 1];
                 memset(real_filename, 0, sizeof(real_filename));
-                strncat(real_filename, getenv("SRCTREE"), PATH_MAX);
+                strncat(real_filename, srctree, PATH_MAX);
                 strncat(real_filename, filename,
                                 PATH_MAX - strlen(real_filename));
                 sym = add_new_file(filename);
@@ -338,6 +341,10 @@ void parse_file(FILE *infile)
 int main(int argc, char *argv[])
 {
         FILE * infile;
+
+        srctree = getenv("SRCTREE");
+        if (!srctree)
+                srctree = getcwd(NULL, 0);
         if (argc != 3) {
                 usage();
                 exit(1);
diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index bb08069b04af..83c5e76414ce 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -84,7 +84,7 @@ help:
 # lxdialog stuff
 check-lxdialog  := $(srctree)/$(src)/lxdialog/check-lxdialog.sh
 
-# Use reursively expanded variables so we do not call gcc unless
+# Use recursively expanded variables so we do not call gcc unless
 # we really need to do so. (Do not call gcc as part of make mrproper)
 HOST_EXTRACFLAGS = $(shell $(CONFIG_SHELL) $(check-lxdialog) -ccflags)
 HOST_LOADLIBES   = $(shell $(CONFIG_SHELL) $(check-lxdialog) -ldflags $(HOSTCC))
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 2ef9a193fcae..93ac52adb498 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -268,6 +268,9 @@ static struct symbol *sym_add_exported(const char *name, struct module *mod,
                              "was in %s%s\n", mod->name, name,
                              s->module->name,
                              is_vmlinux(s->module->name) ?"":".ko");
+                } else {
+                        /* In case Modules.symvers was out of date */
+                        s->module = mod;
                 }
         }
         s->preloaded = 0;
diff --git a/scripts/package/builddeb b/scripts/package/builddeb
index 6edb29f2b4a6..0f657b5f3bc8 100644
--- a/scripts/package/builddeb
+++ b/scripts/package/builddeb
@@ -83,6 +83,7 @@ Maintainer: $name
 Standards-Version: 3.6.1
 
 Package: $packagename
+Provides: kernel-image-$version, linux-image-$version
 Architecture: any
 Description: User Mode Linux kernel, version $version
  User-mode Linux is a port of the Linux kernel to its own system call
@@ -104,6 +105,7 @@ Maintainer: $name
 Standards-Version: 3.6.1
 
 Package: $packagename
+Provides: kernel-image-$version, linux-image-$version
 Architecture: any
 Description: Linux kernel, version $version
  This package contains the Linux kernel, modules and corresponding other