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| author |   David S. Miller <davem@davemloft.net> | 2008-04-29 02:38:50 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-04-29 02:38:50 -0700 |
| commit | e2fdd7fd99dd68b77caaf2a2272b75b5da890de7 (patch) | |
| tree | d2b6d3a9b50e4d2ced793430d2b1414f790666a3 /arch/sparc64/kernel/misctrap.S | |
| parent | kgdbts: Sparc needs sstep emulation. (diff) | |
| download | linux-dev-e2fdd7fd99dd68b77caaf2a2272b75b5da890de7.tar.xz linux-dev-e2fdd7fd99dd68b77caaf2a2272b75b5da890de7.zip | |
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 'arch/sparc64/kernel/misctrap.S')
| -rw-r--r-- | arch/sparc64/kernel/misctrap.S | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/sparc64/kernel/misctrap.S b/arch/sparc64/kernel/misctrap.S index b257497ddde1..753b4f031bfb 100644 --- a/arch/sparc64/kernel/misctrap.S +++ b/arch/sparc64/kernel/misctrap.S @@ -1,3 +1,13 @@ +#ifdef CONFIG_KGDB + .globl arch_kgdb_breakpoint + .type arch_kgdb_breakpoint,#function +arch_kgdb_breakpoint: + ta 0x72 + retl + nop + .size arch_kgdb_breakpoint,.-arch_kgdb_breakpoint +#endif + .type __do_privact,#function __do_privact: mov TLB_SFSR, %g3 |