lkml.org 
[lkml]   [2014]   [Oct]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 1/3] um: Create asm/sections.h
Date
arch/um/kernel/dyn.lds.S and arch/um/kernel/uml.lds.S define some
UML-specific symbols. These symbols are used in the kernel part of UML
with extern declarations.

Move these declarations to a new header, asm/sections.h, like other
architectures do.

Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
---
arch/um/include/asm/Kbuild | 1 -
arch/um/include/asm/sections.h | 9 +++++++++
arch/um/kernel/physmem.c | 3 +--
arch/um/kernel/skas/mmu.c | 3 +--
arch/um/kernel/um_arch.c | 2 --
5 files changed, 11 insertions(+), 7 deletions(-)
create mode 100644 arch/um/include/asm/sections.h

diff --git a/arch/um/include/asm/Kbuild b/arch/um/include/asm/Kbuild
index 244b12c8cb39..21fd5c647442 100644
--- a/arch/um/include/asm/Kbuild
+++ b/arch/um/include/asm/Kbuild
@@ -23,7 +23,6 @@ generic-y += pci.h
generic-y += percpu.h
generic-y += preempt.h
generic-y += scatterlist.h
-generic-y += sections.h
generic-y += switch_to.h
generic-y += topology.h
generic-y += trace_clock.h
diff --git a/arch/um/include/asm/sections.h b/arch/um/include/asm/sections.h
new file mode 100644
index 000000000000..3a6ebcc65519
--- /dev/null
+++ b/arch/um/include/asm/sections.h
@@ -0,0 +1,9 @@
+#ifndef __UM_SECTIONS_H
+#define __UM_SECTIONS_H
+
+#include <asm-generic/sections.h>
+
+extern char __binary_start;
+extern int __syscall_stub_start, __syscall_stub_end;
+
+#endif
diff --git a/arch/um/kernel/physmem.c b/arch/um/kernel/physmem.c
index 30fdd5d0067b..db05c067665a 100644
--- a/arch/um/kernel/physmem.c
+++ b/arch/um/kernel/physmem.c
@@ -8,6 +8,7 @@
#include <linux/mm.h>
#include <linux/pfn.h>
#include <asm/page.h>
+#include <asm/sections.h>
#include <as-layout.h>
#include <init.h>
#include <kern.h>
@@ -75,8 +76,6 @@ void map_memory(unsigned long virt, unsigned long phys, unsigned long len,
}
}

-extern int __syscall_stub_start;
-
void __init setup_physmem(unsigned long start, unsigned long reserve_end,
unsigned long len, unsigned long long highmem)
{
diff --git a/arch/um/kernel/skas/mmu.c b/arch/um/kernel/skas/mmu.c
index 007d5503f49b..d2a0a4c0cd91 100644
--- a/arch/um/kernel/skas/mmu.c
+++ b/arch/um/kernel/skas/mmu.c
@@ -8,12 +8,11 @@
#include <linux/slab.h>
#include <asm/pgalloc.h>
#include <asm/pgtable.h>
+#include <asm/sections.h>
#include <as-layout.h>
#include <os.h>
#include <skas.h>

-extern int __syscall_stub_start;
-
static int init_stub_pte(struct mm_struct *mm, unsigned long proc,
unsigned long kernel)
{
diff --git a/arch/um/kernel/um_arch.c b/arch/um/kernel/um_arch.c
index 016adf0985d5..02c21f6e0983 100644
--- a/arch/um/kernel/um_arch.c
+++ b/arch/um/kernel/um_arch.c
@@ -259,8 +259,6 @@ EXPORT_SYMBOL(end_iomem);

#define MIN_VMALLOC (32 * 1024 * 1024)

-extern char __binary_start;
-
int __init linux_main(int argc, char **argv)
{
unsigned long avail, diff;
--
2.1.1


\
 
 \ /
  Last update: 2014-10-12 13:41    [W:0.186 / U:0.224 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site