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author | Eric Paris <eparis@redhat.com> | 2014-03-07 11:41:32 -0500 |
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committer | Eric Paris <eparis@redhat.com> | 2014-03-07 11:41:32 -0500 |
commit | b7d3622a39fde7658170b7f3cf6c6889bb8db30d (patch) | |
tree | 64f4e781ecb2a85d675e234072b988560bcd25f1 /kernel/gcov/gcc_3_4.c | |
parent | f3411cb2b2e396a41ed3a439863f028db7140a34 (diff) | |
parent | d8ec26d7f8287f5788a494f56e8814210f0e64be (diff) | |
download | linux-stable-b7d3622a39fde7658170b7f3cf6c6889bb8db30d.tar.gz linux-stable-b7d3622a39fde7658170b7f3cf6c6889bb8db30d.tar.bz2 linux-stable-b7d3622a39fde7658170b7f3cf6c6889bb8db30d.zip |
Merge tag 'v3.13' into for-3.15
Linux 3.13
Conflicts:
include/net/xfrm.h
Simple merge where v3.13 removed 'extern' from definitions and the audit
tree did s/u32/unsigned int/ to the same definitions.
Diffstat (limited to 'kernel/gcov/gcc_3_4.c')
-rw-r--r-- | kernel/gcov/gcc_3_4.c | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/kernel/gcov/gcc_3_4.c b/kernel/gcov/gcc_3_4.c index ae5bb4260033..27bc88a35013 100644 --- a/kernel/gcov/gcc_3_4.c +++ b/kernel/gcov/gcc_3_4.c @@ -21,6 +21,121 @@ #include <linux/vmalloc.h> #include "gcov.h" +#define GCOV_COUNTERS 5 + +static struct gcov_info *gcov_info_head; + +/** + * struct gcov_fn_info - profiling meta data per function + * @ident: object file-unique function identifier + * @checksum: function checksum + * @n_ctrs: number of values per counter type belonging to this function + * + * This data is generated by gcc during compilation and doesn't change + * at run-time. + */ +struct gcov_fn_info { + unsigned int ident; + unsigned int checksum; + unsigned int n_ctrs[0]; +}; + +/** + * struct gcov_ctr_info - profiling data per counter type + * @num: number of counter values for this type + * @values: array of counter values for this type + * @merge: merge function for counter values of this type (unused) + * + * This data is generated by gcc during compilation and doesn't change + * at run-time with the exception of the values array. + */ +struct gcov_ctr_info { + unsigned int num; + gcov_type *values; + void (*merge)(gcov_type *, unsigned int); +}; + +/** + * struct gcov_info - profiling data per object file + * @version: gcov version magic indicating the gcc version used for compilation + * @next: list head for a singly-linked list + * @stamp: time stamp + * @filename: name of the associated gcov data file + * @n_functions: number of instrumented functions + * @functions: function data + * @ctr_mask: mask specifying which counter types are active + * @counts: counter data per counter type + * + * This data is generated by gcc during compilation and doesn't change + * at run-time with the exception of the next pointer. + */ +struct gcov_info { + unsigned int version; + struct gcov_info *next; + unsigned int stamp; + const char *filename; + unsigned int n_functions; + const struct gcov_fn_info *functions; + unsigned int ctr_mask; + struct gcov_ctr_info counts[0]; +}; + +/** + * gcov_info_filename - return info filename + * @info: profiling data set + */ +const char *gcov_info_filename(struct gcov_info *info) +{ + return info->filename; +} + +/** + * gcov_info_version - return info version + * @info: profiling data set + */ +unsigned int gcov_info_version(struct gcov_info *info) +{ + return info->version; +} + +/** + * gcov_info_next - return next profiling data set + * @info: profiling data set + * + * Returns next gcov_info following @info or first gcov_info in the chain if + * @info is %NULL. + */ +struct gcov_info *gcov_info_next(struct gcov_info *info) +{ + if (!info) + return gcov_info_head; + + return info->next; +} + +/** + * gcov_info_link - link/add profiling data set to the list + * @info: profiling data set + */ +void gcov_info_link(struct gcov_info *info) +{ + info->next = gcov_info_head; + gcov_info_head = info; +} + +/** + * gcov_info_unlink - unlink/remove profiling data set from the list + * @prev: previous profiling data set + * @info: profiling data set + */ +void gcov_info_unlink(struct gcov_info *prev, struct gcov_info *info) +{ + if (prev) + prev->next = info->next; + else + gcov_info_head = info->next; +} + /* Symbolic links to be created for each profiling data file. */ const struct gcov_link gcov_link[] = { { OBJ_TREE, "gcno" }, /* Link to .gcno file in $(objtree). */ |