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[PATCH] x86_64: allow unwinder to build without module support
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Add proper conditionals to be able to build with CONFIG_MODULES=n.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Jan Beulich authored and Linus Torvalds committed Jun 26, 2006
1 parent c33bd9a commit 83f4fcc
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Showing 2 changed files with 12 additions and 0 deletions.
8 changes: 8 additions & 0 deletions include/linux/unwind.h
Original file line number Diff line number Diff line change
Expand Up @@ -29,12 +29,16 @@ struct module;
*/
extern void unwind_init(void);

#ifdef CONFIG_MODULES

extern void *unwind_add_table(struct module *,
const void *table_start,
unsigned long table_size);

extern void unwind_remove_table(void *handle, int init_only);

#endif

extern int unwind_init_frame_info(struct unwind_frame_info *,
struct task_struct *,
/*const*/ struct pt_regs *);
Expand Down Expand Up @@ -72,13 +76,17 @@ struct unwind_frame_info {};

static inline void unwind_init(void) {}

#ifdef CONFIG_MODULES

static inline void *unwind_add_table(struct module *mod,
const void *table_start,
unsigned long table_size)
{
return NULL;
}

#endif

static inline void unwind_remove_table(void *handle, int init_only)
{
}
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4 changes: 4 additions & 0 deletions kernel/unwind.c
Original file line number Diff line number Diff line change
Expand Up @@ -172,6 +172,8 @@ void __init unwind_init(void)
__start_unwind, __end_unwind - __start_unwind);
}

#ifdef CONFIG_MODULES

/* Must be called with module_mutex held. */
void *unwind_add_table(struct module *module,
const void *table_start,
Expand Down Expand Up @@ -253,6 +255,8 @@ void unwind_remove_table(void *handle, int init_only)
kfree(table);
}

#endif /* CONFIG_MODULES */

static uleb128_t get_uleb128(const u8 **pcur, const u8 *end)
{
const u8 *cur = *pcur;
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