Fork us on GitHub Follow us on Facebook Follow us on Twitter

Changeset da52547 in mainline for kernel/generic/src/console/console.c


Ignore:
Timestamp:
2010-07-02T10:16:38Z (12 years ago)
Author:
Martin Decky <martin@…>
Branches:
lfn, master
Children:
b5382d4f
Parents:
ad8f03d2
Message:

add early_putchar() which can be used to do early kernel console output for debugging purposes
(the availability of this feature depends on each platform and specific configuration, currently it works only on ia32/amd64 with EGA and no framebuffer)
instrument more kernel functions
mark some functions as no_instrument (context_restore(), overlaps(), main_bsp())

File:
1 edited

Legend:

Unmodified
Added
Removed
  • kernel/generic/src/console/console.c

    rad8f03d2 rda52547  
    294294                stdout->op->write(stdout, ch, silent);
    295295        else {
    296                 /* The character is just in the kernel log */
     296                /*
     297                 * No standard output routine defined yet.
     298                 * The character is still stored in the kernel log
     299                 * for possible future output.
     300                 *
     301                 * The early_putchar() function is used to output
     302                 * the character for low-level debugging purposes.
     303                 * Note that the early_putc() function might be
     304                 * a no-op on certain hardware configurations.
     305                 *
     306                 */
     307                early_putchar(ch);
     308               
    297309                if (klog_stored < klog_len)
    298310                        klog_stored++;
Note: See TracChangeset for help on using the changeset viewer.