linux-kernel - [PATCH 1/3] m32r: Remove unused .altinstructions and .exit.* code from linker script.

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Date:	Fri, 31 Jul 2009 16:58:05 -0400
From:	Tim Abbott <tabbott@...lice.com>
To:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Cc:	Sam Ravnborg <sam@...nborg.org>,
	Anders Kaseorg <andersk@...lice.com>,
	Nelson Elhage <nelhage@...lice.com>,
	Tim Abbott <tabbott@...lice.com>,
	Hirokazu Takata <takata@...ux-m32r.org>
Subject: [PATCH 1/3] m32r: Remove unused .altinstructions and .exit.* code from linker script.

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@...lice.com>
Cc: Hirokazu Takata <takata@...ux-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 4179adf..eb3e425 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

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