diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/perf_event.h | 35 | ||||
| -rw-r--r-- | include/linux/perf_regs.h | 6 |
2 files changed, 38 insertions, 3 deletions
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index 7602ccb3f40e..3d4d84745f07 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -130,8 +130,9 @@ enum perf_event_sample_format { PERF_SAMPLE_STREAM_ID = 1U << 9, PERF_SAMPLE_RAW = 1U << 10, PERF_SAMPLE_BRANCH_STACK = 1U << 11, + PERF_SAMPLE_REGS_USER = 1U << 12, - PERF_SAMPLE_MAX = 1U << 12, /* non-ABI */ + PERF_SAMPLE_MAX = 1U << 13, /* non-ABI */ }; /* @@ -163,6 +164,15 @@ enum perf_branch_sample_type { PERF_SAMPLE_BRANCH_HV) /* + * Values to determine ABI of the registers dump. + */ +enum perf_sample_regs_abi { + PERF_SAMPLE_REGS_ABI_NONE = 0, + PERF_SAMPLE_REGS_ABI_32 = 1, + PERF_SAMPLE_REGS_ABI_64 = 2, +}; + +/* * The format of the data returned by read() on a perf event fd, * as specified by attr.read_format: * @@ -194,6 +204,7 @@ enum perf_event_read_format { #define PERF_ATTR_SIZE_VER0 64 /* sizeof first published struct */ #define PERF_ATTR_SIZE_VER1 72 /* add: config2 */ #define PERF_ATTR_SIZE_VER2 80 /* add: branch_sample_type */ +#define PERF_ATTR_SIZE_VER3 88 /* add: sample_regs_user */ /* * Hardware event_id to monitor via a performance monitoring event: @@ -271,7 +282,13 @@ struct perf_event_attr { __u64 bp_len; __u64 config2; /* extension of config1 */ }; - __u64 branch_sample_type; /* enum branch_sample_type */ + __u64 branch_sample_type; /* enum perf_branch_sample_type */ + + /* + * Defines set of user regs to dump on samples. + * See asm/perf_regs.h for details. + */ + __u64 sample_regs_user; }; /* @@ -548,6 +565,9 @@ enum perf_event_type { * char data[size];}&& PERF_SAMPLE_RAW * * { u64 from, to, flags } lbr[nr];} && PERF_SAMPLE_BRANCH_STACK + * + * { u64 abi; # enum perf_sample_regs_abi + * u64 regs[weight(mask)]; } && PERF_SAMPLE_REGS_USER * }; */ PERF_RECORD_SAMPLE = 9, @@ -609,6 +629,7 @@ struct perf_guest_info_callbacks { #include <linux/static_key.h> #include <linux/atomic.h> #include <linux/sysfs.h> +#include <linux/perf_regs.h> #include <asm/local.h> struct perf_callchain_entry { @@ -654,6 +675,11 @@ struct perf_branch_stack { struct perf_branch_entry entries[0]; }; +struct perf_regs_user { + __u64 abi; + struct pt_regs *regs; +}; + struct task_struct; /* @@ -1133,6 +1159,7 @@ struct perf_sample_data { struct perf_callchain_entry *callchain; struct perf_raw_record *raw; struct perf_branch_stack *br_stack; + struct perf_regs_user regs_user; }; static inline void perf_sample_data_init(struct perf_sample_data *data, @@ -1142,7 +1169,9 @@ static inline void perf_sample_data_init(struct perf_sample_data *data, data->addr = addr; data->raw = NULL; data->br_stack = NULL; - data->period = period; + data->period = period; + data->regs_user.abi = PERF_SAMPLE_REGS_ABI_NONE; + data->regs_user.regs = NULL; } extern void perf_output_sample(struct perf_output_handle *handle, diff --git a/include/linux/perf_regs.h b/include/linux/perf_regs.h index a2f1a98f7839..3c73d5fe18be 100644 --- a/include/linux/perf_regs.h +++ b/include/linux/perf_regs.h @@ -5,6 +5,7 @@ #include <asm/perf_regs.h> u64 perf_reg_value(struct pt_regs *regs, int idx); int perf_reg_validate(u64 mask); +u64 perf_reg_abi(struct task_struct *task); #else static inline u64 perf_reg_value(struct pt_regs *regs, int idx) { @@ -15,5 +16,10 @@ static inline int perf_reg_validate(u64 mask) { return mask ? -ENOSYS : 0; } + +static inline u64 perf_reg_abi(struct task_struct *task) +{ + return PERF_SAMPLE_REGS_ABI_NONE; +} #endif /* CONFIG_HAVE_PERF_REGS */ #endif /* _LINUX_PERF_REGS_H */ |
