From: "Francis Moreau" <francis.moro@gmail.com>
To: linux-kernel@vger.kernel.org
Subject: Question about EXPORT_SYMBOL implementation
Date: Fri, 9 Feb 2007 17:07:41 +0100 [thread overview]
Message-ID: <38b2ab8a0702090807m133e8f89n9857b8f7814e3685@mail.gmail.com> (raw)
Hi,
Here is the implementation of EXPORT_SYMBOL:
#define __EXPORT_SYMBOL(sym, sec) \
extern typeof(sym) sym; \
__CRC_SYMBOL(sym, sec) \
static const char __kstrtab_##sym[] \
__attribute__((section("__ksymtab_strings"))) \
= MODULE_SYMBOL_PREFIX #sym; \
static const struct kernel_symbol __ksymtab_##sym \
__attribute_used__ \
__attribute__((section("__ksymtab" sec), unused)) \
= { (unsigned long)&sym, __kstrtab_##sym }
I'm wondering why it's using '__attribute_used__' _and_
'__attribute__((section("__ksymtab" sec), unused)'. Isn't the unused
attribute redundant with '__attribute_used__' ?
thanks
--
Francis
reply other threads:[~2007-02-09 16:07 UTC|newest]
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