From caf83ea888a0220f41747d0b7748fa43b4a4bd49 Mon Sep 17 00:00:00 2001 From: Haavard Skinnemoen Date: Fri, 2 May 2008 15:32:57 +0200 Subject: avr32: Use the same entry point for reset and exception handling Since the reset vector is always aligned to a very large boundary, we can save a couple of KB worth of alignment padding by placing the exception vectors at the same address. Deciding which one it is is easy: If we're handling an exception, the CPU is in Exception mode. If we're starting up after reset, the CPU is in Supervisor mode. So this adds a very minimal overhead to the reset path (only executed once) and the exception handling path (normally never executed at all.) Signed-off-by: Haavard Skinnemoen --- board/atmel/atngw100/u-boot.lds | 1 + board/atmel/atstk1000/u-boot.lds | 1 + 2 files changed, 2 insertions(+) (limited to 'board/atmel') diff --git a/board/atmel/atngw100/u-boot.lds b/board/atmel/atngw100/u-boot.lds index 3c878d8657..e736adf0fc 100644 --- a/board/atmel/atngw100/u-boot.lds +++ b/board/atmel/atngw100/u-boot.lds @@ -29,6 +29,7 @@ SECTIONS . = 0; _text = .; .text : { + *(.exception.text) *(.text) *(.text.*) } diff --git a/board/atmel/atstk1000/u-boot.lds b/board/atmel/atstk1000/u-boot.lds index f63bc4ff27..0d3b19c640 100644 --- a/board/atmel/atstk1000/u-boot.lds +++ b/board/atmel/atstk1000/u-boot.lds @@ -29,6 +29,7 @@ SECTIONS . = 0; _text = .; .text : { + *(.exception.text) *(.text) *(.text.*) } -- cgit v1.2.1