91bf695596
This is copied from arm64. Instead of using runtime generated signal trampoline offsets, get offsets at buildtime. If the said trampoline doesn't exist, build will fail. So no need to check whether the trampoline exists or not in the VDSO. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/f8bfd6812c3e3678b1cdb4d55a52f9eb022b40d3.1601197618.git.christophe.leroy@csgroup.eu
69 lines
1.3 KiB
C
69 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __PPC64_VDSO_H__
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#define __PPC64_VDSO_H__
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#ifdef __KERNEL__
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/* Default link addresses for the vDSOs */
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#define VDSO32_LBASE 0x0
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#define VDSO64_LBASE 0x0
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/* Default map addresses for 32bit vDSO */
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#define VDSO32_MBASE 0x100000
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#define VDSO_VERSION_STRING LINUX_2.6.15
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#ifndef __ASSEMBLY__
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#ifdef CONFIG_PPC64
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#include <generated/vdso64-offsets.h>
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#endif
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#ifdef CONFIG_VDSO32
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#include <generated/vdso32-offsets.h>
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#endif
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#define VDSO64_SYMBOL(base, name) ((unsigned long)(base) + (vdso64_offset_##name))
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#define VDSO32_SYMBOL(base, name) ((unsigned long)(base) + (vdso32_offset_##name))
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/* Offsets relative to thread->vdso_base */
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extern unsigned long vdso64_rt_sigtramp;
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extern unsigned long vdso32_sigtramp;
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extern unsigned long vdso32_rt_sigtramp;
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int vdso_getcpu_init(void);
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#else /* __ASSEMBLY__ */
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#ifdef __VDSO64__
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#define V_FUNCTION_BEGIN(name) \
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.globl name; \
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name: \
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#define V_FUNCTION_END(name) \
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.size name,.-name;
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#define V_LOCAL_FUNC(name) (name)
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#endif /* __VDSO64__ */
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#ifdef __VDSO32__
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#define V_FUNCTION_BEGIN(name) \
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.globl name; \
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.type name,@function; \
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name: \
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#define V_FUNCTION_END(name) \
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.size name,.-name;
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#define V_LOCAL_FUNC(name) (name)
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#endif /* __VDSO32__ */
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#endif /* __ASSEMBLY__ */
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#endif /* __KERNEL__ */
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#endif /* __PPC64_VDSO_H__ */
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