From 6ac9f47977a9fc1876979871eeb14f26ba1bdbe6 Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Sun, 23 Aug 2009 02:47:59 -0400 Subject: start a linker script helper file Start a common header file for common linker script code (such as workarounds for older linkers) rather than doing this in the build system. As fallout, we no longer execute the linker every time config.mk is included by a build file (which can easily be 70+ times), but rather only execute it once. This also fixes a bug in the major version checking by creating a macro to easily compare versions and keep people from making the same common mistake (forgetting to check major and minor together). Signed-off-by: Mike Frysinger --- include/u-boot/u-boot.lds.h | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 include/u-boot/u-boot.lds.h (limited to 'include/u-boot') diff --git a/include/u-boot/u-boot.lds.h b/include/u-boot/u-boot.lds.h new file mode 100644 index 000000000..ead37d069 --- /dev/null +++ b/include/u-boot/u-boot.lds.h @@ -0,0 +1,25 @@ +/* + * Linker script helper macros + * + * Copyright (c) 2009 Analog Devices Inc. + * + * Licensed under the GPL-2 or later. + */ + +#ifndef __U_BOOT_LDS__ +#define __U_BOOT_LDS__ + +/* See if the linker version is at least the specified version */ +#define LD_AT_LEAST(major, minor) \ + ((major > LD_MAJOR) || (major == LD_MAJOR && minor <= LD_MINOR)) + +/* + * Linker versions prior to 2.16 don't understand the builtin + * functions SORT_BY_ALIGNMENT() and SORT_BY_NAME(), so disable these + */ +#if !LD_AT_LEAST(2, 16) +# define SORT_BY_ALIGNMENT(x) x +# define SORT_BY_NAME(x) x +#endif + +#endif -- cgit v1.2.3