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authorDavid S. Miller <davem@davemloft.net>2008-04-29 13:38:50 +0400
committerDavid S. Miller <davem@davemloft.net>2008-04-29 13:38:50 +0400
commite2fdd7fd99dd68b77caaf2a2272b75b5da890de7 (patch)
treed2b6d3a9b50e4d2ced793430d2b1414f790666a3 /include/asm-sparc/head.h
parent4d7ffa49909a830f5f926a3280731d01e29f31fb (diff)
downloadlinux-e2fdd7fd99dd68b77caaf2a2272b75b5da890de7.tar.xz
sparc: Add kgdb support.
Current limitations: 1) On SMP single stepping has some fundamental issues, shared with other sw single-step architectures such as mips and arm. 2) On 32-bit sparc we don't support SMP kgdb yet. That requires some reworking of the IPI mechanisms and infrastructure on that platform. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/asm-sparc/head.h')
-rw-r--r--include/asm-sparc/head.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/include/asm-sparc/head.h b/include/asm-sparc/head.h
index fcdba5116339..e6532c3e09c9 100644
--- a/include/asm-sparc/head.h
+++ b/include/asm-sparc/head.h
@@ -52,6 +52,17 @@
nop; \
nop;
+#ifdef CONFIG_KGDB
+#define KGDB_TRAP(num) \
+ b kgdb_trap_low; \
+ rd %psr,%l0; \
+ nop; \
+ nop;
+#else
+#define KGDB_TRAP(num) \
+ BAD_TRAP(num)
+#endif
+
/* The Get Condition Codes software trap for userland. */
#define GETCC_TRAP \
b getcc_trap_handler; mov %psr, %l0; nop; nop;