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From: Tim Abbott <tabbott@ksplice.com>
To: Hirokazu Takata <takata@linux-m32r.org>
Cc: linux-m32r@ml.linux-m32r.org,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Sam Ravnborg <sam@ravnborg.org>, Tim Abbott <tabbott@ksplice.com>,
	Hirokazu Takata <takata@linux-m32r.org>
Subject: [PATCH v2 4/6] m32r: Remove unused .altinstructions and .exit.* code from linker script.
Date: Fri, 18 Sep 2009 16:32:47 -0400	[thread overview]
Message-ID: <1253305969-6948-5-git-send-email-tabbott@ksplice.com> (raw)
In-Reply-To: <1253305969-6948-1-git-send-email-tabbott@ksplice.com>

It appears that m32r copied the .altinstructions definition from x86
when the architecture was first merged into Linux.  m32r doesn't put
anything in .altinstructions, so this is just dead code.

The following block affecting .exit.text/.exit.data, which has a
comment also copied from x86, should also be deleted; the linker
script later discards the .exit.text and .exit.data sections.

Signed-off-by: Tim Abbott <tabbott@ksplice.com>
Cc: Hirokazu Takata <takata@linux-m32r.org>
---
 arch/m32r/kernel/vmlinux.lds.S |    9 ---------
 1 files changed, 0 insertions(+), 9 deletions(-)

diff --git a/arch/m32r/kernel/vmlinux.lds.S b/arch/m32r/kernel/vmlinux.lds.S
index de5e21c..a8aa4a8 100644
--- a/arch/m32r/kernel/vmlinux.lds.S
+++ b/arch/m32r/kernel/vmlinux.lds.S
@@ -91,15 +91,6 @@ SECTIONS
   .con_initcall.init : { *(.con_initcall.init) }
   __con_initcall_end = .;
   SECURITY_INIT
-  . = ALIGN(4);
-  __alt_instructions = .;
-  .altinstructions : { *(.altinstructions) }
-  __alt_instructions_end = .;
-  .altinstr_replacement : { *(.altinstr_replacement) }
-  /* .exit.text is discard at runtime, not link time, to deal with references
-     from .altinstructions and .eh_frame */
-  .exit.text : { EXIT_TEXT }
-  .exit.data : { EXIT_DATA }
 
 #ifdef CONFIG_BLK_DEV_INITRD
   . = ALIGN(4096);
-- 
1.6.3.3


  parent reply	other threads:[~2009-09-18 20:35 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-09-18 20:32 [PATCH v2 0/6] Linker script cleanup patches for m32r Tim Abbott
2009-09-18 20:32 ` [PATCH v2 1/6] m32r: make PAGE_SIZE available to assembly Tim Abbott
2009-09-18 20:32 ` [PATCH v2 2/6] m32r: Define THREAD_SIZE only once Tim Abbott
2009-09-18 20:32 ` [PATCH v2 3/6] m32r: Move GET_THREAD_INFO definition out of asm/thread_info.h Tim Abbott
2009-09-18 20:32 ` Tim Abbott [this message]
2009-09-18 20:32 ` [PATCH v2 5/6] m32r: Move the spi_stack_top and spu_stack_top into .init.data section Tim Abbott
2009-09-18 20:32 ` [PATCH v2 6/6] m32r: Cleanup linker script using new linker script macros Tim Abbott
2009-09-19  8:35 ` [PATCH v2 0/6] Linker script cleanup patches for m32r Sam Ravnborg

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