diff options
Diffstat (limited to 'gdb/nat/linux-osdata.c')
| -rw-r--r-- | gdb/nat/linux-osdata.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/gdb/nat/linux-osdata.c b/gdb/nat/linux-osdata.c index 6ffabe9..4812bc7 100644 --- a/gdb/nat/linux-osdata.c +++ b/gdb/nat/linux-osdata.c @@ -52,6 +52,10 @@ typedef long long TIME_T; #define MAX_PID_T_STRLEN (sizeof ("-9223372036854775808") - 1) +/* Index of fields of interest in /proc/PID/stat, from procfs(5) man page. */ +#define LINUX_PROC_STAT_STATE 3 +#define LINUX_PROC_STAT_PROCESSOR 39 + /* Returns the CPU core that thread PTID is currently running on. */ /* Compute and return the processor core of a given thread. */ @@ -74,10 +78,9 @@ linux_common_core_of_thread (ptid_t ptid) if (pos == std::string::npos) return -1; - /* If the first field after program name has index 0, then core number is - the field with index 36 (so, the 37th). There's no constant for that - anywhere. */ - for (int i = 0; i < 37; ++i) + /* The first field after program name is LINUX_PROC_STAT_STATE, and we are + interested in field LINUX_PROC_STAT_PROCESSOR. */ + for (int i = LINUX_PROC_STAT_STATE; i <= LINUX_PROC_STAT_PROCESSOR; ++i) { /* Find separator. */ pos = content->find_first_of (' ', pos); |