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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2026-09-05 11:59:05 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2026-09-05 11:59:05 -0700 |
| commit | 9f0346dcbea363787186c94ef94dd01aaa215afa (patch) | |
| tree | b81c168f4d0dbe4c7f4750f4598d48a6deb72094 /tools/perf/util/block-range.h | |
| download | linux-stable-9f0346dcbea363787186c94ef94dd01aaa215afa.tar.gz linux-stable-9f0346dcbea363787186c94ef94dd01aaa215afa.zip | |
Merge tag 'driver-core-7.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-coregrafted
Pull driver core fixes from Danilo Krummrich:
- Fix kernfs listxattr() not returning security xattr names (e.g.
SELinux labels) when the kernfs node has no allocated kernfs_iattrs
- Fix silent truncation of IRQ vector indices in the Rust PCI
abstractions
- Don't select OF from DRIVER_PE_KUNIT_TEST; skip the test when OF is
disabled instead of silently enabling extra kernel functionality
- Russ Weight is retiring from kernel development; update the Firmware
Loader sysfs contact to the driver-core mailing list, add a CREDITS
entry for Firmware Upload, and update MAINTAINERS accordingly
* tag 'driver-core-7.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core:
MAINTAINERS: Remove Russ Weight from Firmware Loader
CREDITS: Add CREDITS entry for Firmware Upload
firmware_loader: Change contact for sysfs nodes
rust: pci: reject IRQ vector indices that do not fit in u32
kernfs: preserve security xattrs without allocating iattrs
drivers: base: test: DRIVER_PE_KUNIT_TEST should not select OF
Diffstat (limited to 'tools/perf/util/block-range.h')
| -rw-r--r-- | tools/perf/util/block-range.h | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/tools/perf/util/block-range.h b/tools/perf/util/block-range.h new file mode 100644 index 000000000..ec0fb534b --- /dev/null +++ b/tools/perf/util/block-range.h @@ -0,0 +1,76 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __PERF_BLOCK_RANGE_H +#define __PERF_BLOCK_RANGE_H + +#include <stdbool.h> +#include <linux/rbtree.h> +#include <linux/types.h> + +struct symbol; + +/* + * struct block_range - non-overlapping parts of basic blocks + * @node: treenode + * @start: inclusive start of range + * @end: inclusive end of range + * @is_target: @start is a jump target + * @is_branch: @end is a branch instruction + * @coverage: number of blocks that cover this range + * @taken: number of times the branch is taken (requires @is_branch) + * @pred: number of times the taken branch was predicted + */ +struct block_range { + struct rb_node node; + + struct symbol *sym; + + u64 start; + u64 end; + + int is_target, is_branch; + + u64 coverage; + u64 entry; + u64 taken; + u64 pred; +}; + +static inline struct block_range *block_range__next(struct block_range *br) +{ + struct rb_node *n = rb_next(&br->node); + if (!n) + return NULL; + return rb_entry(n, struct block_range, node); +} + +struct block_range_iter { + struct block_range *start; + struct block_range *end; +}; + +static inline struct block_range *block_range_iter(struct block_range_iter *iter) +{ + return iter->start; +} + +static inline bool block_range_iter__next(struct block_range_iter *iter) +{ + if (iter->start == iter->end) + return false; + + iter->start = block_range__next(iter->start); + return true; +} + +static inline bool block_range_iter__valid(struct block_range_iter *iter) +{ + if (!iter->start || !iter->end) + return false; + return true; +} + +extern struct block_range *block_range__find(u64 addr); +extern struct block_range_iter block_range__create(u64 start, u64 end); +extern double block_range__coverage(struct block_range *br); + +#endif /* __PERF_BLOCK_RANGE_H */ |
