MIPS: Redefine value of BRK_BUG.

The BRK_BUG value is used in the BUG and __BUG_ON inline macros. For
standard MIPS cores the code in the 'tne' instruction is 10-bits long.
In microMIPS, the 'tne' instruction is recoded and the code can only be
4-bits long. We change the value to 12 instead of 512 so that both classic
and microMIPS kernels build.

[ralf@linux-mips.org: Many of the break codes starting from 0 are used
across many MIPS UNIX variants.  Codes starting from 512 are operating
system specific additions.  1023 again is also used by other operating
systems]

Signed-off-by: Steven J. Hill <sjhill@mips.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --git a/arch/mips/include/uapi/asm/break.h b/arch/mips/include/uapi/asm/break.h
index e5fa7b5..73455e9 100644 (file)
--- a/arch/mips/include/uapi/asm/break.h
+++ b/arch/mips/include/uapi/asm/break.h
@@ -27,7 +27,7 @@
 #define BRK_STACKOVERFLOW 9    /* For Ada stackchecking */
 #define BRK_NORLD      10      /* No rld found - not used by Linux/MIPS */
 #define _BRK_THREADBP  11      /* For threads, user bp (used by debuggers) */
-#define BRK_BUG                512     /* Used by BUG() */
+#define BRK_BUG                12      /* Used by BUG() */
 #define BRK_KDB                513     /* Used in KDB_ENTER() */
 #define BRK_MEMU       514     /* Used by FPU emulator */
 #define BRK_KPROBE_BP  515     /* Kprobe break */