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| author | Andy Lutomirski <luto@MIT.EDU> | 2011-08-03 15:31:50 +0200 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2011-08-05 01:13:35 +0200 |
| commit | 9c40818da5b39fca236029059ab839857b1ef56c (patch) | |
| tree | bfeb2ee130ff5b583aa26c541ea36f8bbad6cbf7 /arch/x86/kernel/vmlinux.lds.S | |
| parent | x86-64: Pad vDSO to a page boundary (diff) | |
| download | linux-9c40818da5b39fca236029059ab839857b1ef56c.tar.xz linux-9c40818da5b39fca236029059ab839857b1ef56c.zip | |
x86-64: Move the "user" vsyscall segment out of the data segment.
The kernel's loader doesn't seem to care, but gold complains.
Signed-off-by: Andy Lutomirski <luto@mit.edu>
Link: http://lkml.kernel.org/r/f0716870c297242a841b949953d80c0d87bf3d3f.1312378163.git.luto@mit.edu
Reported-by: Arkadiusz Miskiewicz <a.miskiewicz@gmail.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to '')
| -rw-r--r-- | arch/x86/kernel/vmlinux.lds.S | 36 |
1 files changed, 18 insertions, 18 deletions
diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S index 4aa9c54a9b76..e79fb3951fce 100644 --- a/arch/x86/kernel/vmlinux.lds.S +++ b/arch/x86/kernel/vmlinux.lds.S @@ -154,6 +154,24 @@ SECTIONS #ifdef CONFIG_X86_64 + . = ALIGN(PAGE_SIZE); + __vvar_page = .; + + .vvar : AT(ADDR(.vvar) - LOAD_OFFSET) { + + /* Place all vvars at the offsets in asm/vvar.h. */ +#define EMIT_VVAR(name, offset) \ + . = offset; \ + *(.vvar_ ## name) +#define __VVAR_KERNEL_LDS +#include <asm/vvar.h> +#undef __VVAR_KERNEL_LDS +#undef EMIT_VVAR + + } :data + + . = ALIGN(__vvar_page + PAGE_SIZE, PAGE_SIZE); + #define VSYSCALL_ADDR (-10*1024*1024) #define VLOAD_OFFSET (VSYSCALL_ADDR - __vsyscall_0 + LOAD_OFFSET) @@ -162,7 +180,6 @@ SECTIONS #define VVIRT_OFFSET (VSYSCALL_ADDR - __vsyscall_0) #define VVIRT(x) (ADDR(x) - VVIRT_OFFSET) - . = ALIGN(4096); __vsyscall_0 = .; . = VSYSCALL_ADDR; @@ -185,23 +202,6 @@ SECTIONS #undef VVIRT_OFFSET #undef VVIRT - __vvar_page = .; - - .vvar : AT(ADDR(.vvar) - LOAD_OFFSET) { - - /* Place all vvars at the offsets in asm/vvar.h. */ -#define EMIT_VVAR(name, offset) \ - . = offset; \ - *(.vvar_ ## name) -#define __VVAR_KERNEL_LDS -#include <asm/vvar.h> -#undef __VVAR_KERNEL_LDS -#undef EMIT_VVAR - - } :data - - . = ALIGN(__vvar_page + PAGE_SIZE, PAGE_SIZE); - #endif /* CONFIG_X86_64 */ /* Init code and data - will be freed after init */ |