#ifndef __UNWIND_H
#define __UNWIND_H

#include <linux/types.h>
#include "event.h"
#include "symbol.h"
#include "thread.h"

struct unwind_entry {
	struct map	*map;
	struct symbol	*sym;
	u64		ip;
};

typedef int (*unwind_entry_cb_t)(struct unwind_entry *entry, void *arg);

struct unwind_libunwind_ops {
	int (*prepare_access)(struct thread *thread);
	void (*flush_access)(struct thread *thread);
	void (*finish_access)(struct thread *thread);
	int (*get_entries)(unwind_entry_cb_t cb, void *arg,
			   struct thread *thread,
			   struct perf_sample *data, int max_stack);
};

#ifdef HAVE_DWARF_UNWIND_SUPPORT
int unwind__get_entries(unwind_entry_cb_t cb, void *arg,
			struct thread *thread,
			struct perf_sample *data, int max_stack);
/* libunwind specific */
#ifdef HAVE_LIBUNWIND_SUPPORT
#ifndef LIBUNWIND__ARCH_REG_ID
#define LIBUNWIND__ARCH_REG_ID(regnum) libunwind__arch_reg_id(regnum)
#endif

#ifndef LIBUNWIND__ARCH_REG_SP
#define LIBUNWIND__ARCH_REG_SP PERF_REG_SP
#endif

#ifndef LIBUNWIND__ARCH_REG_IP
#define LIBUNWIND__ARCH_REG_IP PERF_REG_IP
#endif

int LIBUNWIND__ARCH_REG_ID(int regnum);
int unwind__prepare_access(struct thread *thread, struct map *map,
			   bool *initialized);
void unwind__flush_access(struct thread *thread);
void unwind__finish_access(struct thread *thread);
#else
static inline int unwind__prepare_access(struct thread *thread __maybe_unused,
					 struct map *map __maybe_unused,
					 bool *initialized __maybe_unused)
{
	return 0;
}

static inline void unwind__flush_access(struct thread *thread __maybe_unused) {}
static inline void unwind__finish_access(struct thread *thread __maybe_unused) {}
#endif
#else
static inline int
unwind__get_entries(unwind_entry_cb_t cb __maybe_unused,
		    void *arg __maybe_unused,
		    struct thread *thread __maybe_unused,
		    struct perf_sample *data __maybe_unused,
		    int max_stack __maybe_unused)
{
	return 0;
}

static inline int unwind__prepare_access(struct thread *thread __maybe_unused,
					 struct map *map __maybe_unused,
					 bool *initialized __maybe_unused)
{
	return 0;
}

static inline void unwind__flush_access(struct thread *thread __maybe_unused) {}
static inline void unwind__finish_access(struct thread *thread __maybe_unused) {}
#endif /* HAVE_DWARF_UNWIND_SUPPORT */
#endif /* __UNWIND_H */
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<tr><th>author</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-02-02 13:20:23 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-02-02 13:20:23 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/wusbcore/crypto.c?id=c67b42f3a3f03e68bf915f32c8f7be0b726fec1a'>c67b42f3a3f03e68bf915f32c8f7be0b726fec1a</a> (<a href='/cgit.cgi/linux/net-next.git/patch/drivers/usb/wusbcore/crypto.c?id=c67b42f3a3f03e68bf915f32c8f7be0b726fec1a'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=c67b42f3a3f03e68bf915f32c8f7be0b726fec1a'>9abf8c8a276cd5e8119e5c50f53afc220648008e</a> /<a href='/cgit.cgi/linux/net-next.git/tree/drivers/usb/wusbcore/crypto.c?id=c67b42f3a3f03e68bf915f32c8f7be0b726fec1a'>drivers/usb/wusbcore/crypto.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/wusbcore/crypto.c?id=027eb72cbcf81561867a764074964e2ce9828398'>027eb72cbcf81561867a764074964e2ce9828398</a> (<a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/wusbcore/crypto.c?id=c67b42f3a3f03e68bf915f32c8f7be0b726fec1a&amp;id2=027eb72cbcf81561867a764074964e2ce9828398'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/wusbcore/crypto.c?id=c8f325a59cfc718d13a50fbc746ed9b415c25e92'>c8f325a59cfc718d13a50fbc746ed9b415c25e92</a> (<a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/wusbcore/crypto.c?id=c67b42f3a3f03e68bf915f32c8f7be0b726fec1a&amp;id2=c8f325a59cfc718d13a50fbc746ed9b415c25e92'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge branch 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip</div><div class='commit-msg'>Pull EFI fixes from Ingo Molnar:
 "Two EFI boot fixes, one for arm64 and one for x86 systems with certain
  firmware versions"

* 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  efi/fdt: Avoid FDT manipulation after ExitBootServices()
  x86/efi: Always map the first physical page into the EFI pagetables
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=c67b42f3a3f03e68bf915f32c8f7be0b726fec1a'>Diffstat</a> (limited to 'drivers/usb/wusbcore/crypto.c')</div><table summary='diffstat' class='diffstat'>