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authorRichard Henderson <richard.henderson@linaro.org>2023-02-15 19:45:16 -1000
committerLaurent Vivier <laurent@vivier.eu>2023-03-10 20:45:47 +0100
commite64c6d42b652b4acf10d83e1bc86d4fd4ce28ef2 (patch)
treea5f737cfc024437c8609a15c2b6d1a1e991f3317
parent4ea3af392f85dc2e66059855266b3817b321dc90 (diff)
downloadfocaccia-qemu-e64c6d42b652b4acf10d83e1bc86d4fd4ce28ef2.tar.gz
focaccia-qemu-e64c6d42b652b4acf10d83e1bc86d4fd4ce28ef2.zip
linux-user/sparc: Handle tag overflow traps
This trap is raised by taddcctv and tsubcctv insns.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230216054516.1267305-16-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
-rw-r--r--linux-user/sparc/cpu_loop.c3
-rw-r--r--linux-user/sparc/target_signal.h2
-rw-r--r--linux-user/syscall_defs.h5
3 files changed, 9 insertions, 1 deletions
diff --git a/linux-user/sparc/cpu_loop.c b/linux-user/sparc/cpu_loop.c
index 5a8a71e976..b36bb2574b 100644
--- a/linux-user/sparc/cpu_loop.c
+++ b/linux-user/sparc/cpu_loop.c
@@ -328,6 +328,9 @@ void cpu_loop (CPUSPARCState *env)
         case TT_PRIV_INSN:
             force_sig_fault(TARGET_SIGILL, TARGET_ILL_PRVOPC, env->pc);
             break;
+        case TT_TOVF:
+            force_sig_fault(TARGET_SIGEMT, TARGET_EMT_TAGOVF, env->pc);
+            break;
 #ifdef TARGET_SPARC64
         case TT_PRIV_ACT:
             /* Note do_privact defers to do_privop. */
diff --git a/linux-user/sparc/target_signal.h b/linux-user/sparc/target_signal.h
index 87757f0c4e..f223eb4af6 100644
--- a/linux-user/sparc/target_signal.h
+++ b/linux-user/sparc/target_signal.h
@@ -8,7 +8,7 @@
 #define TARGET_SIGTRAP           5
 #define TARGET_SIGABRT           6
 #define TARGET_SIGIOT            6
-#define TARGET_SIGSTKFLT         7 /* actually EMT */
+#define TARGET_SIGEMT            7
 #define TARGET_SIGFPE            8
 #define TARGET_SIGKILL           9
 #define TARGET_SIGBUS           10
diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h
index 77864de57f..614a1cbc8e 100644
--- a/linux-user/syscall_defs.h
+++ b/linux-user/syscall_defs.h
@@ -717,6 +717,11 @@ typedef struct target_siginfo {
 #define TARGET_TRAP_HWBKPT      (4)     /* hardware breakpoint/watchpoint */
 #define TARGET_TRAP_UNK         (5)     /* undiagnosed trap */
 
+/*
+ * SIGEMT si_codes
+ */
+#define TARGET_EMT_TAGOVF      1       /* tag overflow */
+
 #include "target_resource.h"
 
 struct target_pollfd {