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From: Rusty Russell <rusty@rustcorp.com.au>
To: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Cc: linux-kernel@vger.kernel.org, linux-kbuild@vger.kernel.org
Subject: Re: [PATCH 10/10] module: fix is_exported() to return true for all types of exports
Date: Mon, 9 Nov 2009 13:19:19 +1030	[thread overview]
Message-ID: <200911091319.20308.rusty@rustcorp.com.au> (raw)
In-Reply-To: <1257627841-15817-10-git-send-email-alan-jenkins@tuffmail.co.uk>

On Sun, 8 Nov 2009 07:34:01 am Alan Jenkins wrote:
> /proc/kallsyms annotates module symbols as global (e.g. 'D' for a data
> symbol) or local (e.g. 'd'), depending on whether is_exported() returns
> true or false.

Thanks, I've applied the whole series.

Cheers,
Rusty.
PS.  One fix so far:

Fix for CONFIG_MODVERSIONS=n:

kernel/module.c: In function ‘init_ksymtab’:
kernel/module.c:200: warning: initialization makes integer from pointer without a cast
kernel/module.c:201: warning: excess elements in struct initializer
kernel/module.c:201: warning: (near initialization for ‘(anonymous)’)

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

diff --git a/kernel/module.c b/kernel/module.c
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -194,30 +194,45 @@ extern const unsigned long __start___kcr
 
 static struct ksymtab ksymtab[EXPORT_TYPE_MAX];
 
+#ifdef CONFIG_MODVERSIONS
+#define init_one_ksymtab(ksymt, start, stop, crc_start)	\
+	do {						\
+		struct ksymtab *ks = (ksymt);		\
+		ks->syms = (start);			\
+		ks->num_syms = (stop) - ks->syms;	\
+		ks->crcs = (crc_start);			\
+	} while (0)
+#else
+#define init_one_ksymtab(ksymt, start, stop, crc_start)	\
+	do {						\
+		struct ksymtab *ks = (ksymt);		\
+		ks->syms = (start);			\
+		ks->num_syms = (stop) - ks->syms;	\
+	} while (0)
+#endif
+
 static int __init init_ksymtab(void)
 {
-	ksymtab[EXPORT_TYPE_PLAIN] = (struct ksymtab) {
-		__start___ksymtab, __start___kcrctab,
-		__stop___ksymtab - __start___ksymtab,
-	};
-	ksymtab[EXPORT_TYPE_GPL] = (struct ksymtab) {
-		__start___ksymtab_gpl, __start___kcrctab_gpl,
-		__stop___ksymtab_gpl - __start___ksymtab_gpl,
-	};
+	init_one_ksymtab(&ksymtab[EXPORT_TYPE_PLAIN],
+			 __start___ksymtab, __stop___ksymtab,
+			 __start___kcrctab);
+	init_one_ksymtab(&ksymtab[EXPORT_TYPE_GPL],
+			 __start___ksymtab_gpl, __stop___ksymtab_gpl,
+			 __start___kcrctab_gpl);
 #ifdef CONFIG_UNUSED_EXPORTS
-	ksymtab[EXPORT_TYPE_UNUSED] = (struct ksymtab) {
-		__start___ksymtab_unused, __start___kcrctab_unused,
-		__stop___ksymtab_unused - __start___ksymtab_unused,
-	};
-	ksymtab[EXPORT_TYPE_UNUSED_GPL] = (struct ksymtab) {
-		__start___ksymtab_unused_gpl, __start___kcrctab_unused_gpl,
-		__stop___ksymtab_unused_gpl - __start___ksymtab_unused_gpl,
-	};
+	init_one_ksymtab(&ksymtab[EXPORT_TYPE_UNUSED],
+			 __start___ksymtab_unused,
+			 __stop___ksymtab_unused,
+			 __start___kcrctab_unused);
+	init_one_ksymtab(&ksymtab[EXPORT_TYPE_UNUSED_GPL],
+			 __start___ksymtab_unused_gpl,
+			 __stop___ksymtab_unused_gpl,
+			 __start___kcrctab_unused_gpl);
 #endif
-	ksymtab[EXPORT_TYPE_GPL_FUTURE] = (struct ksymtab) {
-		__start___ksymtab_gpl_future, __start___kcrctab_gpl_future,
-		__stop___ksymtab_gpl_future - __start___ksymtab_gpl_future,
-	};
+	init_one_ksymtab(&ksymtab[EXPORT_TYPE_GPL_FUTURE],
+			 __start___ksymtab_gpl_future,
+			 __stop___ksymtab_gpl_future,
+			 __start___kcrctab_gpl_future);
 
 	return 0;
 }

  reply	other threads:[~2009-11-09  2:49 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-11-07 20:59 [PATCH 0/10] module: Speed up symbol resolution during module loading (using binary search) Alan Jenkins
2009-11-07 21:03 ` [PATCH 01/10] ARM: use unified discard definition in linker script Alan Jenkins
2009-11-07 21:03 ` [PATCH 02/10] ARM: unexport symbols used to implement floating point emulation Alan Jenkins
2009-11-07 21:03 ` [PATCH 03/10] module: make MODULE_SYMBOL_PREFIX into a CONFIG option Alan Jenkins
2009-11-07 21:03 ` [PATCH 04/10] module: extract EXPORT_SYMBOL() from module.h into mod_export.h Alan Jenkins
2009-11-07 21:03 ` [PATCH 05/10] kbuild: sort the list of symbols exported by the kernel (__ksymtab) Alan Jenkins
2009-11-07 21:03 ` [PATCH 06/10] module: refactor symbol tables and try to reduce code size of each_symbol() Alan Jenkins
2009-11-07 21:03 ` [PATCH 07/10] lib: Add generic binary search function to the kernel Alan Jenkins
2009-11-07 21:03 ` [PATCH 08/10] lib: bsearch - remove redundant special case for arrays of size 0 Alan Jenkins
2009-11-07 21:04 ` [PATCH 09/10] module: speed up find_symbol() using binary search on the builtin symbol tables Alan Jenkins
2009-11-07 21:04 ` [PATCH 10/10] module: fix is_exported() to return true for all types of exports Alan Jenkins
2009-11-09  2:49   ` Rusty Russell [this message]
  -- strict thread matches above, loose matches on Subject: below --
2009-11-02 16:52 Fast LKM symbol resolution Alan Jenkins
2009-11-03 10:06 ` [PATCH 10/10] module: fix is_exported() to return true for all types of exports Alan Jenkins
2009-11-04  8:32   ` Rusty Russell

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