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authorDavid S. Miller <davem@davemloft.net>2008-04-29 05:38:50 -0400
committerDavid S. Miller <davem@davemloft.net>2008-04-29 05:38:50 -0400
commite2fdd7fd99dd68b77caaf2a2272b75b5da890de7 (patch)
treed2b6d3a9b50e4d2ced793430d2b1414f790666a3 /include/asm-sparc64/system.h
parent4d7ffa49909a830f5f926a3280731d01e29f31fb (diff)
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-sparc64/system.h')
-rw-r--r--include/asm-sparc64/system.h5
1 files changed, 3 insertions, 2 deletions
diff --git a/include/asm-sparc64/system.h b/include/asm-sparc64/system.h
index 53eae091a171..6897ac31be41 100644
--- a/include/asm-sparc64/system.h
+++ b/include/asm-sparc64/system.h
@@ -180,12 +180,13 @@ do { if (test_thread_flag(TIF_PERFCTR)) { \
180 "ldx [%%sp + 2047 + 0x70], %%i6\n\t" \ 180 "ldx [%%sp + 2047 + 0x70], %%i6\n\t" \
181 "ldx [%%sp + 2047 + 0x78], %%i7\n\t" \ 181 "ldx [%%sp + 2047 + 0x78], %%i7\n\t" \
182 "ldx [%%g6 + %9], %%g4\n\t" \ 182 "ldx [%%g6 + %9], %%g4\n\t" \
183 "brz,pt %%o7, 1f\n\t" \ 183 "brz,pt %%o7, switch_to_pc\n\t" \
184 " mov %%g7, %0\n\t" \ 184 " mov %%g7, %0\n\t" \
185 "sethi %%hi(ret_from_syscall), %%g1\n\t" \ 185 "sethi %%hi(ret_from_syscall), %%g1\n\t" \
186 "jmpl %%g1 + %%lo(ret_from_syscall), %%g0\n\t" \ 186 "jmpl %%g1 + %%lo(ret_from_syscall), %%g0\n\t" \
187 " nop\n\t" \ 187 " nop\n\t" \
188 "1:\n\t" \ 188 ".globl switch_to_pc\n\t" \
189 "switch_to_pc:\n\t" \
189 : "=&r" (last), "=r" (current), "=r" (current_thread_info_reg), \ 190 : "=&r" (last), "=r" (current), "=r" (current_thread_info_reg), \
190 "=r" (__local_per_cpu_offset) \ 191 "=r" (__local_per_cpu_offset) \
191 : "0" (task_thread_info(next)), \ 192 : "0" (task_thread_info(next)), \