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Date: Tue, 12 Nov 2002 23:50:22 +0100
To: Rusty Russell <rusty@rustcorp.com.au>
Cc: Anders Gustafsson <andersg@0x63.nu>, linux-kernel@vger.kernel.org,
       lord@sgi.com
Subject: Re: 2.5-bk AT_GID clash
Message-ID: <20021112225022.GA10689@gagarin>
References: <20021112011858.GB19877@gagarin> <20021112172423.91C0C2C2DA@lists.samba.org>
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From: Anders Gustafsson <andersg@0x63.nu>
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On Wed, Nov 13, 2002 at 04:16:56AM +1100, Rusty Russell wrote:
> > Maybe module.h shouldn't be including elf.h, that afaik is needed by the
> > arch-specific module loaders and not by all modules. A split into
> > module.h for the modules and moduleloader.h for the arch-spec-loaders?
> 
> This might be OK too, but in practice I don't think much will be in
> moduleloader.h: asm/module.h only really defines struct
> mod_arch_specific, which is embedded in struct module, and struct
> module needs to be exposed for those inlines...

But there are things in linux/module.h that are arch-generic but not needed
for the modules if i understand it correctly, things that need elf.h:

find_symbol_internal, module_core_alloc, module_init_alloc, apply_relocate,
apply_relocate_add and module_finalize

Something like this patch...

-- 
Anders Gustafsson - andersg@0x63.nu - http://0x63.nu/

You can import this changeset into BK by piping this whole message to:
'| bk receive [path to repository]' or apply the patch as usual.

===================================================================


ChangeSet@1.858, 2002-11-12 23:44:23+01:00, andersg@0x63.nu
  Do not include elf.h into all modules via module.h


 include/linux/module.h       |   45 --------------------------------------
 include/linux/moduleloader.h |   50 +++++++++++++++++++++++++++++++++++++++++++
 kernel/module.c              |    1 
 3 files changed, 51 insertions(+), 45 deletions(-)


diff -Nru a/include/linux/module.h b/include/linux/module.h
--- a/include/linux/module.h	Tue Nov 12 23:46:58 2002
+++ b/include/linux/module.h	Tue Nov 12 23:46:58 2002
@@ -10,7 +10,6 @@
 #include <linux/sched.h>
 #include <linux/spinlock.h>
 #include <linux/list.h>
-#include <linux/elf.h>
 #include <linux/stat.h>
 #include <linux/compiler.h>
 #include <linux/cache.h>
@@ -143,50 +142,6 @@
 	   keeping pointers to this stuff */
 	char args[0];
 };
-
-/* Helper function for arch-specific module loaders */
-unsigned long find_symbol_internal(Elf_Shdr *sechdrs,
-				   unsigned int symindex,
-				   const char *strtab,
-				   const char *name,
-				   struct module *mod,
-				   struct kernel_symbol_group **group);
-
-/* These must be implemented by the specific architecture */
-
-/* vmalloc AND zero for the non-releasable code; return ERR_PTR() on error. */
-void *module_core_alloc(const Elf_Ehdr *hdr,
-			const Elf_Shdr *sechdrs,
-			const char *secstrings,
-			struct module *mod);
-
-/* vmalloc and zero (if any) for sections to be freed after init.
-   Return ERR_PTR() on error. */
-void *module_init_alloc(const Elf_Ehdr *hdr,
-			const Elf_Shdr *sechdrs,
-			const char *secstrings,
-			struct module *mod);
-
-/* Apply the given relocation to the (simplified) ELF.  Return -error
-   or 0. */
-int apply_relocate(Elf_Shdr *sechdrs,
-		   const char *strtab,
-		   unsigned int symindex,
-		   unsigned int relsec,
-		   struct module *mod);
-
-/* Apply the given add relocation to the (simplified) ELF.  Return
-   -error or 0 */
-int apply_relocate_add(Elf_Shdr *sechdrs,
-		       const char *strtab,
-		       unsigned int symindex,
-		       unsigned int relsec,
-		       struct module *mod);
-
-/* Any final processing of module before access.  Return -error or 0. */
-int module_finalize(const Elf_Ehdr *hdr,
-		    const Elf_Shdr *sechdrs,
-		    struct module *mod);
 
 /* Free memory returned from module_core_alloc/module_init_alloc */
 void module_free(struct module *mod, void *module_region);
diff -Nru a/include/linux/moduleloader.h b/include/linux/moduleloader.h
--- /dev/null	Wed Dec 31 16:00:00 1969
+++ b/include/linux/moduleloader.h	Tue Nov 12 23:46:58 2002
@@ -0,0 +1,50 @@
+#ifndef _LINUX_MODULELOADER_H
+#define _LINUX_MODULELOADER_H
+
+#include <linux/elf.h>
+
+/* Helper function for arch-specific module loaders */
+unsigned long find_symbol_internal(Elf_Shdr *sechdrs,
+				   unsigned int symindex,
+				   const char *strtab,
+				   const char *name,
+				   struct module *mod,
+				   struct kernel_symbol_group **group);
+
+/* These must be implemented by the specific architecture */
+
+/* vmalloc AND zero for the non-releasable code; return ERR_PTR() on error. */
+void *module_core_alloc(const Elf_Ehdr *hdr,
+			const Elf_Shdr *sechdrs,
+			const char *secstrings,
+			struct module *mod);
+
+/* vmalloc and zero (if any) for sections to be freed after init.
+   Return ERR_PTR() on error. */
+void *module_init_alloc(const Elf_Ehdr *hdr,
+			const Elf_Shdr *sechdrs,
+			const char *secstrings,
+			struct module *mod);
+
+/* Apply the given relocation to the (simplified) ELF.  Return -error
+   or 0. */
+int apply_relocate(Elf_Shdr *sechdrs,
+		   const char *strtab,
+		   unsigned int symindex,
+		   unsigned int relsec,
+		   struct module *mod);
+
+/* Apply the given add relocation to the (simplified) ELF.  Return
+   -error or 0 */
+int apply_relocate_add(Elf_Shdr *sechdrs,
+		       const char *strtab,
+		       unsigned int symindex,
+		       unsigned int relsec,
+		       struct module *mod);
+
+/* Any final processing of module before access.  Return -error or 0. */
+int module_finalize(const Elf_Ehdr *hdr,
+		    const Elf_Shdr *sechdrs,
+		    struct module *mod);
+
+#endif
diff -Nru a/kernel/module.c b/kernel/module.c
--- a/kernel/module.c	Tue Nov 12 23:46:58 2002
+++ b/kernel/module.c	Tue Nov 12 23:46:58 2002
@@ -17,6 +17,7 @@
 */
 #include <linux/config.h>
 #include <linux/module.h>
+#include <linux/moduleloader.h>
 #include <linux/init.h>
 #include <linux/slab.h>
 #include <linux/vmalloc.h>

===================================================================


This BitKeeper patch contains the following changesets:
1.858
## Wrapped with gzip_uu ##


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`
end
-
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