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| author | Daniel Thompson <daniel.thompson@linaro.org> | 2017-07-30 08:09:38 +0100 |
|---|---|---|
| committer | Daniel Thompson <daniel.thompson@linaro.org> | 2017-07-31 16:50:09 +0100 |
| commit | 7fbc575a1109d08637ac56d2cbabc599487f0e3b (patch) | |
| tree | 537c44c36921b37ca1109dde6bfcea0d26e0e38c | |
| parent | 84442326b5dadb8b7b06bdc04b55c2004c8c9d1e (diff) | |
kernel: debug: kdb: RDA support
| -rw-r--r-- | kernel/debug/kdb/kdb_io.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/kernel/debug/kdb/kdb_io.c b/kernel/debug/kdb/kdb_io.c index 14ff4849262c..4b0fb2fb779c 100644 --- a/kernel/debug/kdb/kdb_io.c +++ b/kernel/debug/kdb/kdb_io.c @@ -216,7 +216,7 @@ static char *kdb_read(char *buffer, size_t bufsize) int i; int diag, dtab_count; int key; - + static int last_crlf; diag = kdbgetintenv("DTABCOUNT", &dtab_count); if (diag) @@ -237,6 +237,9 @@ poll_again: return buffer; if (key != 9) tab = 0; + if (key != 10 && key != 13) + last_crlf = 0; + switch (key) { case 8: /* backspace */ if (cp > buffer) { @@ -254,7 +257,12 @@ poll_again: *cp = tmp; } break; - case 13: /* enter */ + case 10: /* new line */ + case 13: /* carriage return */ + /* handle \n after \r */ + if (last_crlf && last_crlf != key) + break; + last_crlf = key; *lastchar++ = '\n'; *lastchar++ = '\0'; if (!KDB_STATE(KGDB_TRANS)) { |