diff options
Diffstat (limited to 'include/asm-x86/ptrace-abi.h')
| -rw-r--r-- | include/asm-x86/ptrace-abi.h | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/include/asm-x86/ptrace-abi.h b/include/asm-x86/ptrace-abi.h index 32fe137822b..bcf67044754 100644 --- a/include/asm-x86/ptrace-abi.h +++ b/include/asm-x86/ptrace-abi.h @@ -99,13 +99,15 @@ struct ptrace_bts_config { #define PTRACE_BTS_CONFIG 40 /* Configure branch trace recording. - DATA is ignored, ADDR points to a struct ptrace_bts_config. + ADDR points to a struct ptrace_bts_config. + DATA gives the size of that buffer. A new buffer is allocated, iff the size changes. + Returns the number of bytes read. */ #define PTRACE_BTS_STATUS 41 -/* Return the current configuration. - DATA is ignored, ADDR points to a struct ptrace_bts_config - that will contain the result. +/* Return the current configuration in a struct ptrace_bts_config + pointed to by ADDR; DATA gives the size of that buffer. + Returns the number of bytes written. */ #define PTRACE_BTS_SIZE 42 /* Return the number of available BTS records. @@ -123,8 +125,8 @@ struct ptrace_bts_config { */ #define PTRACE_BTS_DRAIN 45 /* Read all available BTS records and clear the buffer. - DATA is ignored. ADDR points to an array of struct bts_struct of - suitable size. + ADDR points to an array of struct bts_struct. + DATA gives the size of that buffer. BTS records are read from oldest to newest. Returns number of BTS records drained. */ |