qapi: Fix compilation failure on MIPS and SPARC

Commit 86f4b687 broke compilation on MIPS and SPARC, which have a
preprocessor pollution of '#define mips 1' and '#define sparc 1',
respectively.  Treat it the same way as we do for the pollution with
'unix', so that QMP remains backwards compatible and only the C code
needs to use the alternative 'q_mips', 'q_sparc' spelling.

CC: James Hogan <james.hogan@imgtec.com>
CC: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: NEric Blake <eblake@redhat.com>
Tested-by: NJames Hogan <james.hogan@imgtec.com>
Signed-off-by: NMarkus Armbruster <armbru@redhat.com>

cpus.c

@@ -1576,13 +1576,13 @@ CpuInfoList *qmp_query_cpus(Error **errp)
         info->value->u.ppc->nip = env->nip;
 #elif defined(TARGET_SPARC)
         info->value->arch = CPU_INFO_ARCH_SPARC;
-        info->value->u.sparc = g_new0(CpuInfoSPARC, 1);
-        info->value->u.sparc->pc = env->pc;
-        info->value->u.sparc->npc = env->npc;
+        info->value->u.q_sparc = g_new0(CpuInfoSPARC, 1);
+        info->value->u.q_sparc->pc = env->pc;
+        info->value->u.q_sparc->npc = env->npc;
 #elif defined(TARGET_MIPS)
         info->value->arch = CPU_INFO_ARCH_MIPS;
-        info->value->u.mips = g_new0(CpuInfoMIPS, 1);
-        info->value->u.mips->PC = env->active_tc.PC;
+        info->value->u.q_mips = g_new0(CpuInfoMIPS, 1);
+        info->value->u.q_mips->PC = env->active_tc.PC;
 #elif defined(TARGET_TRICORE)
         info->value->arch = CPU_INFO_ARCH_TRICORE;
         info->value->u.tricore = g_new0(CpuInfoTricore, 1);

hmp.c

@@ -319,11 +319,13 @@ void hmp_info_cpus(Monitor *mon, const QDict *qdict)
             monitor_printf(mon, " nip=0x%016" PRIx64, cpu->value->u.ppc->nip);
             break;
         case CPU_INFO_ARCH_SPARC:
-            monitor_printf(mon, " pc=0x%016" PRIx64, cpu->value->u.sparc->pc);
-            monitor_printf(mon, " npc=0x%016" PRIx64, cpu->value->u.sparc->npc);
+            monitor_printf(mon, " pc=0x%016" PRIx64,
+                           cpu->value->u.q_sparc->pc);
+            monitor_printf(mon, " npc=0x%016" PRIx64,
+                           cpu->value->u.q_sparc->npc);
             break;
         case CPU_INFO_ARCH_MIPS:
-            monitor_printf(mon, " PC=0x%016" PRIx64, cpu->value->u.mips->PC);
+            monitor_printf(mon, " PC=0x%016" PRIx64, cpu->value->u.q_mips->PC);
             break;
         case CPU_INFO_ARCH_TRICORE:
             monitor_printf(mon, " PC=0x%016" PRIx64, cpu->value->u.tricore->PC);

scripts/qapi.py

@@ -1482,7 +1482,7 @@ def c_name(name, protect=True):
                      'and', 'and_eq', 'bitand', 'bitor', 'compl', 'not',
                      'not_eq', 'or', 'or_eq', 'xor', 'xor_eq'])
     # namespace pollution:
-    polluted_words = set(['unix', 'errno'])
+    polluted_words = set(['unix', 'errno', 'mips', 'sparc'])
     name = name.translate(c_name_trans)
     if protect and (name in c89_words | c99_words | c11_words | gcc_words
                     | cpp_words | polluted_words):