diff options
| author | Ingo Molnar <mingo@kernel.org> | 2012-10-24 10:20:57 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2012-10-24 10:20:57 +0200 |
| commit | ef8c029fa793423439e67ef0416b220d3fa3321a (patch) | |
| tree | 4199cefa6e1dcad1783040755246a14371f029af /kernel/debug/kdb/kdb_io.c | |
| parent | 6fcdb1ed2ef3548d5a9428d6ae60158ddd46a608 (diff) | |
| parent | c13d38e4a1fd5dd07135403c613c8091af444169 (diff) | |
Merge branch 'perf/urgent' into perf/core
Pick up v3.7-rc2 and fixes before applying more patches.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/debug/kdb/kdb_io.c')
| -rw-r--r-- | kernel/debug/kdb/kdb_io.c | 33 |
1 files changed, 28 insertions, 5 deletions
diff --git a/kernel/debug/kdb/kdb_io.c b/kernel/debug/kdb/kdb_io.c index 0a69d2adc4f..14ff4849262 100644 --- a/kernel/debug/kdb/kdb_io.c +++ b/kernel/debug/kdb/kdb_io.c @@ -552,6 +552,7 @@ int vkdb_printf(const char *fmt, va_list ap) { int diag; int linecount; + int colcount; int logging, saved_loglevel = 0; int saved_trap_printk; int got_printf_lock = 0; @@ -584,6 +585,10 @@ int vkdb_printf(const char *fmt, va_list ap) if (diag || linecount <= 1) linecount = 24; + diag = kdbgetintenv("COLUMNS", &colcount); + if (diag || colcount <= 1) + colcount = 80; + diag = kdbgetintenv("LOGGING", &logging); if (diag) logging = 0; @@ -690,7 +695,7 @@ kdb_printit: gdbstub_msg_write(kdb_buffer, retlen); } else { if (dbg_io_ops && !dbg_io_ops->is_console) { - len = strlen(kdb_buffer); + len = retlen; cp = kdb_buffer; while (len--) { dbg_io_ops->write_char(*cp); @@ -709,11 +714,29 @@ kdb_printit: printk(KERN_INFO "%s", kdb_buffer); } - if (KDB_STATE(PAGER) && strchr(kdb_buffer, '\n')) - kdb_nextline++; + if (KDB_STATE(PAGER)) { + /* + * Check printed string to decide how to bump the + * kdb_nextline to control when the more prompt should + * show up. + */ + int got = 0; + len = retlen; + while (len--) { + if (kdb_buffer[len] == '\n') { + kdb_nextline++; + got = 0; + } else if (kdb_buffer[len] == '\r') { + got = 0; + } else { + got++; + } + } + kdb_nextline += got / (colcount + 1); + } /* check for having reached the LINES number of printed lines */ - if (kdb_nextline == linecount) { + if (kdb_nextline >= linecount) { char buf1[16] = ""; /* Watch out for recursion here. Any routine that calls @@ -765,7 +788,7 @@ kdb_printit: kdb_grepping_flag = 0; kdb_printf("\n"); } else if (buf1[0] == ' ') { - kdb_printf("\n"); + kdb_printf("\r"); suspend_grep = 1; /* for this recursion */ } else if (buf1[0] == '\n') { kdb_nextline = linecount - 1; |