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https://gitee.com/bianbu-linux/linux-6.6
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0dc690e4ef
We have three architectures using function descriptors, each with its own type and name. Add a common typedef that can be used in generic code. Also add a stub typedef for architecture without function descriptors, to avoid a forest of #ifdefs. It replaces the similar 'func_desc_t' previously defined in arch/powerpc/kernel/module_64.c Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Reviewed-by: Kees Cook <keescook@chromium.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Helge Deller <deller@gmx.de> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/f1f91b142b3c1082bdc1586ce71c9bac1e75213c.1644928018.git.christophe.leroy@csgroup.eu
24 lines
548 B
C
24 lines
548 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _PARISC_SECTIONS_H
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#define _PARISC_SECTIONS_H
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#ifdef CONFIG_HAVE_FUNCTION_DESCRIPTORS
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#include <asm/elf.h>
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typedef Elf64_Fdesc func_desc_t;
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#endif
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/* nothing to see, move along */
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#include <asm-generic/sections.h>
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extern char __alt_instructions[], __alt_instructions_end[];
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#ifdef CONFIG_64BIT
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#undef dereference_function_descriptor
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void *dereference_function_descriptor(void *);
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#undef dereference_kernel_function_descriptor
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void *dereference_kernel_function_descriptor(void *);
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#endif
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#endif
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