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author | Cyrill Gorcunov <gorcunov@gmail.com> | 2008-05-12 14:01:56 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-05-13 08:02:22 -0700 |
commit | a7dfa9403bf3b03899d5ef5d10b0c5c3f74b0682 (patch) | |
tree | a65021eecb15793d453c1ed1258759312f17e3cb | |
parent | 6d0742426c9adc7465ef5c62a99a1d3e9696ea19 (diff) | |
download | op-kernel-dev-a7dfa9403bf3b03899d5ef5d10b0c5c3f74b0682.zip op-kernel-dev-a7dfa9403bf3b03899d5ef5d10b0c5c3f74b0682.tar.gz |
uml: use PAGE_SIZE in linker scripts
This patch includes page.h header into linker scripts that allow us to
use PAGE_SIZE macro instead of numeric constant.
To be able to include page.h into linker scripts page.h is needed for
some modification - i.e. we need to use __ASSEMBLY__ and _AC macro
[jdike@linux.intel.com - fixed conflict with as-layout.h]
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Cc: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r-- | arch/um/include/as-layout.h | 14 | ||||
-rw-r--r-- | arch/um/kernel/dyn.lds.S | 7 | ||||
-rw-r--r-- | arch/um/kernel/uml.lds.S | 7 | ||||
-rw-r--r-- | include/asm-um/page.h | 17 |
4 files changed, 26 insertions, 19 deletions
diff --git a/arch/um/include/as-layout.h b/arch/um/include/as-layout.h index cac542d..58e852d 100644 --- a/arch/um/include/as-layout.h +++ b/arch/um/include/as-layout.h @@ -23,16 +23,16 @@ */ #ifdef __ASSEMBLY__ -#define _AC(X, Y) (Y) +#define _UML_AC(X, Y) (Y) #else -#define __AC(X, Y) (X (Y)) -#define _AC(X, Y) __AC(X, Y) +#define __UML_AC(X, Y) (X(Y)) +#define _UML_AC(X, Y) __UML_AC(X, Y) #endif -#define STUB_START _AC(, 0x100000) -#define STUB_CODE _AC((unsigned long), STUB_START) -#define STUB_DATA _AC((unsigned long), STUB_CODE + UM_KERN_PAGE_SIZE) -#define STUB_END _AC((unsigned long), STUB_DATA + UM_KERN_PAGE_SIZE) +#define STUB_START _UML_AC(, 0x100000) +#define STUB_CODE _UML_AC((unsigned long), STUB_START) +#define STUB_DATA _UML_AC((unsigned long), STUB_CODE + UM_KERN_PAGE_SIZE) +#define STUB_END _UML_AC((unsigned long), STUB_DATA + UM_KERN_PAGE_SIZE) #ifndef __ASSEMBLY__ diff --git a/arch/um/kernel/dyn.lds.S b/arch/um/kernel/dyn.lds.S index 26090b7..9975e1a 100644 --- a/arch/um/kernel/dyn.lds.S +++ b/arch/um/kernel/dyn.lds.S @@ -1,4 +1,5 @@ #include <asm-generic/vmlinux.lds.h> +#include <asm/page.h> OUTPUT_FORMAT(ELF_FORMAT) OUTPUT_ARCH(ELF_ARCH) @@ -21,7 +22,7 @@ SECTIONS _einittext = .; } - . = ALIGN(4096); + . = ALIGN(PAGE_SIZE); /* Read-only sections, merged into text segment: */ .hash : { *(.hash) } @@ -68,9 +69,9 @@ SECTIONS /* .gnu.warning sections are handled specially by elf32.em. */ *(.gnu.warning) - . = ALIGN(4096); + . = ALIGN(PAGE_SIZE); } =0x90909090 - . = ALIGN(4096); + . = ALIGN(PAGE_SIZE); .syscall_stub : { __syscall_stub_start = .; *(.__syscall_stub*) diff --git a/arch/um/kernel/uml.lds.S b/arch/um/kernel/uml.lds.S index 5828c1d..11b8352 100644 --- a/arch/um/kernel/uml.lds.S +++ b/arch/um/kernel/uml.lds.S @@ -1,4 +1,5 @@ #include <asm-generic/vmlinux.lds.h> +#include <asm/page.h> OUTPUT_FORMAT(ELF_FORMAT) OUTPUT_ARCH(ELF_ARCH) @@ -26,7 +27,7 @@ SECTIONS INIT_TEXT _einittext = .; } - . = ALIGN(4096); + . = ALIGN(PAGE_SIZE); .text : { @@ -39,7 +40,7 @@ SECTIONS *(.gnu.linkonce.t*) } - . = ALIGN(4096); + . = ALIGN(PAGE_SIZE); .syscall_stub : { __syscall_stub_start = .; *(.__syscall_stub*) @@ -79,7 +80,7 @@ SECTIONS .sdata : { *(.sdata) } _edata = .; PROVIDE (edata = .); - . = ALIGN(0x1000); + . = ALIGN(PAGE_SIZE); .sbss : { __bss_start = .; diff --git a/include/asm-um/page.h b/include/asm-um/page.h index 381f96b..916e1a6 100644 --- a/include/asm-um/page.h +++ b/include/asm-um/page.h @@ -7,16 +7,20 @@ #ifndef __UM_PAGE_H #define __UM_PAGE_H -struct page; - -#include <linux/types.h> -#include <asm/vm-flags.h> +#include <linux/const.h> /* PAGE_SHIFT determines the page size */ #define PAGE_SHIFT 12 -#define PAGE_SIZE (1UL << PAGE_SHIFT) +#define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT) #define PAGE_MASK (~(PAGE_SIZE-1)) +#ifndef __ASSEMBLY__ + +struct page; + +#include <linux/types.h> +#include <asm/vm-flags.h> + /* * These are used to make use of C type-checking.. */ @@ -120,4 +124,5 @@ extern struct page *arch_validate(struct page *page, gfp_t mask, int order); #include <asm-generic/memory_model.h> #include <asm-generic/page.h> -#endif +#endif /* __ASSEMBLY__ */ +#endif /* __UM_PAGE_H */ |