forked from mirrors/linux
49ec9177b8
Certain architecture specific operating modes (e.g., in powerpc machine check handler that is unable to access vmalloc memory), the search_exception_tables cannot be called because it also searches the module exception tables if entry is not found in the kernel exception table. Signed-off-by: Santosh Sivaraj <santosh@fossix.org> Reviewed-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20190820081352.8641-5-santosh@fossix.org
36 lines
1.1 KiB
C
36 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _LINUX_EXTABLE_H
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#define _LINUX_EXTABLE_H
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#include <linux/stddef.h> /* for NULL */
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#include <linux/types.h>
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struct module;
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struct exception_table_entry;
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const struct exception_table_entry *
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search_extable(const struct exception_table_entry *base,
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const size_t num,
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unsigned long value);
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void sort_extable(struct exception_table_entry *start,
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struct exception_table_entry *finish);
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void sort_main_extable(void);
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void trim_init_extable(struct module *m);
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/* Given an address, look for it in the exception tables */
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const struct exception_table_entry *search_exception_tables(unsigned long add);
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const struct exception_table_entry *
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search_kernel_exception_table(unsigned long addr);
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#ifdef CONFIG_MODULES
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/* For extable.c to search modules' exception tables. */
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const struct exception_table_entry *search_module_extables(unsigned long addr);
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#else
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static inline const struct exception_table_entry *
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search_module_extables(unsigned long addr)
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{
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return NULL;
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}
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#endif /*CONFIG_MODULES*/
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#endif /* _LINUX_EXTABLE_H */
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