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author | Ingo Molnar | 2009-02-13 09:49:38 +0100 |
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committer | Ingo Molnar | 2009-02-13 09:49:38 +0100 |
commit | b1864e9a1afef41709886072c6e6248def0386f4 (patch) | |
tree | 2fe749209cf860c1dd10efd1bd2ad8df572bd66e /include/asm-generic/vmlinux.lds.h | |
parent | Merge branch 'linus' into perfcounters/core (diff) | |
parent | Merge branches 'x86/paravirt', 'x86/pat', 'x86/setup-v2', 'x86/subarch', 'x86... (diff) | |
download | kernel-qcow2-linux-b1864e9a1afef41709886072c6e6248def0386f4.tar.gz kernel-qcow2-linux-b1864e9a1afef41709886072c6e6248def0386f4.tar.xz kernel-qcow2-linux-b1864e9a1afef41709886072c6e6248def0386f4.zip |
Merge branch 'x86/core' into perfcounters/core
Conflicts:
arch/x86/Kconfig
arch/x86/kernel/apic.c
arch/x86/kernel/setup_percpu.c
Diffstat (limited to 'include/asm-generic/vmlinux.lds.h')
-rw-r--r-- | include/asm-generic/vmlinux.lds.h | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index 53e21f36a802..5406e70aba86 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -445,10 +445,9 @@ * section in the linker script will go there too. @phdr should have * a leading colon. * - * This macro defines three symbols, __per_cpu_load, __per_cpu_start - * and __per_cpu_end. The first one is the vaddr of loaded percpu - * init data. __per_cpu_start equals @vaddr and __per_cpu_end is the - * end offset. + * Note that this macros defines __per_cpu_load as an absolute symbol. + * If there is no need to put the percpu section at a predetermined + * address, use PERCPU(). */ #define PERCPU_VADDR(vaddr, phdr) \ VMLINUX_SYMBOL(__per_cpu_load) = .; \ @@ -470,7 +469,20 @@ * Align to @align and outputs output section for percpu area. This * macro doesn't maniuplate @vaddr or @phdr and __per_cpu_load and * __per_cpu_start will be identical. + * + * This macro is equivalent to ALIGN(align); PERCPU_VADDR( , ) except + * that __per_cpu_load is defined as a relative symbol against + * .data.percpu which is required for relocatable x86_32 + * configuration. */ #define PERCPU(align) \ . = ALIGN(align); \ - PERCPU_VADDR( , ) + .data.percpu : AT(ADDR(.data.percpu) - LOAD_OFFSET) { \ + VMLINUX_SYMBOL(__per_cpu_load) = .; \ + VMLINUX_SYMBOL(__per_cpu_start) = .; \ + *(.data.percpu.first) \ + *(.data.percpu.page_aligned) \ + *(.data.percpu) \ + *(.data.percpu.shared_aligned) \ + VMLINUX_SYMBOL(__per_cpu_end) = .; \ + } |