diff options
Diffstat (limited to 'tools/perf/util/util.c')
| -rw-r--r-- | tools/perf/util/util.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c index 99664598bc1a..805d1f52c5b4 100644 --- a/tools/perf/util/util.c +++ b/tools/perf/util/util.c @@ -10,6 +10,10 @@ /* * XXX We need to find a better place for these things... */ +unsigned int page_size; + +bool test_attr__enabled; + bool perf_host = true; bool perf_guest = false; @@ -164,6 +168,39 @@ size_t hex_width(u64 v) return n; } +static int hex(char ch) +{ + if ((ch >= '0') && (ch <= '9')) + return ch - '0'; + if ((ch >= 'a') && (ch <= 'f')) + return ch - 'a' + 10; + if ((ch >= 'A') && (ch <= 'F')) + return ch - 'A' + 10; + return -1; +} + +/* + * While we find nice hex chars, build a long_val. + * Return number of chars processed. + */ +int hex2u64(const char *ptr, u64 *long_val) +{ + const char *p = ptr; + *long_val = 0; + + while (*p) { + const int hex_val = hex(*p); + + if (hex_val < 0) + break; + + *long_val = (*long_val << 4) | hex_val; + p++; + } + + return p - ptr; +} + /* Obtain a backtrace and print it to stdout. */ #ifdef BACKTRACE_SUPPORT void dump_stack(void) @@ -183,3 +220,25 @@ void dump_stack(void) #else void dump_stack(void) {} #endif + +void get_term_dimensions(struct winsize *ws) +{ + char *s = getenv("LINES"); + + if (s != NULL) { + ws->ws_row = atoi(s); + s = getenv("COLUMNS"); + if (s != NULL) { + ws->ws_col = atoi(s); + if (ws->ws_row && ws->ws_col) + return; + } + } +#ifdef TIOCGWINSZ + if (ioctl(1, TIOCGWINSZ, ws) == 0 && + ws->ws_row && ws->ws_col) + return; +#endif + ws->ws_row = 25; + ws->ws_col = 80; +} |