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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-21 11:10:41 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-21 11:10:41 -0700 |
| commit | ac3ee84c604502240122c47b52f0542ec8774f15 (patch) | |
| tree | fa74b50e310af6cef3298a052514b2d42b260d6b /arch/x86/kernel/early_printk.c | |
| parent | 90b9a32d8f441369b2f97a765d2d957b531eb653 (diff) | |
| parent | 4fe1da4ebc18c4c42fa56c228447f68033fce5f0 (diff) | |
| download | kernel_samsung_smdk4412-ac3ee84c604502240122c47b52f0542ec8774f15.tar.gz kernel_samsung_smdk4412-ac3ee84c604502240122c47b52f0542ec8774f15.tar.bz2 kernel_samsung_smdk4412-ac3ee84c604502240122c47b52f0542ec8774f15.zip | |
Merge branch 'dbg-early-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb
* 'dbg-early-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb:
echi-dbgp: Add kernel debugger support for the usb debug port
earlyprintk,vga,kdb: Fix \b and \r for earlyprintk=vga with kdb
kgdboc: Add ekgdboc for early use of the kernel debugger
x86,early dr regs,kgdb: Allow kernel debugger early dr register access
x86,kgdb: Implement early hardware breakpoint debugging
x86, kgdb, init: Add early and late debug states
x86, kgdb: early trap init for early debug
Diffstat (limited to 'arch/x86/kernel/early_printk.c')
| -rw-r--r-- | arch/x86/kernel/early_printk.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/x86/kernel/early_printk.c b/arch/x86/kernel/early_printk.c index b9c830c12b4..fa99bae75ac 100644 --- a/arch/x86/kernel/early_printk.c +++ b/arch/x86/kernel/early_printk.c @@ -41,6 +41,14 @@ static void early_vga_write(struct console *con, const char *str, unsigned n) writew(0x720, VGABASE + 2*(max_xpos*j + i)); current_ypos = max_ypos-1; } +#ifdef CONFIG_KGDB_KDB + if (c == '\b') { + if (current_xpos > 0) + current_xpos--; + } else if (c == '\r') { + current_xpos = 0; + } else +#endif if (c == '\n') { current_xpos = 0; current_ypos++; |