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authorPeter Maydell <peter.maydell@linaro.org>2021-05-27 19:17:42 +0100
committerPeter Maydell <peter.maydell@linaro.org>2021-05-27 19:17:42 +0100
commit7258034ab40e6927acbd005feb295eb3acf972bb (patch)
tree2f30a06432f7049429f41ccea808c5f683a94eba /target/m68k/cpu.h
parentc8616fc7670b884de5f74d2767aade224c1c5c3a (diff)
parent5e50c6c72bf8575f124ec9397411f4a2ff0d0206 (diff)
downloadfocaccia-qemu-7258034ab40e6927acbd005feb295eb3acf972bb.tar.gz
focaccia-qemu-7258034ab40e6927acbd005feb295eb3acf972bb.zip
Merge remote-tracking branch 'remotes/vivier/tags/m68k-for-6.1-pull-request' into staging
m68k pull request 20210526

implement m68k "any instruction" trace mode

# gpg: Signature made Wed 26 May 2021 20:56:58 BST
# gpg:                using RSA key CD2F75DDC8E3A4DC2E4F5173F30C38BD3F2FBE3C
# gpg:                issuer "laurent@vivier.eu"
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [full]
# gpg:                 aka "Laurent Vivier <laurent@vivier.eu>" [full]
# gpg:                 aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" [full]
# Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F  5173 F30C 38BD 3F2F BE3C

* remotes/vivier/tags/m68k-for-6.1-pull-request:
  target/m68k: implement m68k "any instruction" trace mode
  target/m68k: introduce gen_singlestep_exception() function
  target/m68k: call gen_raise_exception() directly if single-stepping in gen_jmp_tb()
  target/m68k: introduce is_singlestepping() function

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target/m68k/cpu.h')
-rw-r--r--target/m68k/cpu.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/target/m68k/cpu.h b/target/m68k/cpu.h
index 402c86c876..997d588911 100644
--- a/target/m68k/cpu.h
+++ b/target/m68k/cpu.h
@@ -230,6 +230,9 @@ typedef enum {
 #define SR_T_SHIFT 14
 #define SR_T  0xc000
 
+#define M68K_SR_TRACE(sr) ((sr & SR_T) >> SR_T_SHIFT)
+#define M68K_SR_TRACE_ANY_INS 0x2
+
 #define M68K_SSP    0
 #define M68K_USP    1
 #define M68K_ISP    2
@@ -590,6 +593,8 @@ typedef M68kCPU ArchCPU;
 #define TB_FLAGS_SFC_S          (1 << TB_FLAGS_SFC_S_BIT)
 #define TB_FLAGS_DFC_S_BIT      15
 #define TB_FLAGS_DFC_S          (1 << TB_FLAGS_DFC_S_BIT)
+#define TB_FLAGS_TRACE          16
+#define TB_FLAGS_TRACE_BIT      (1 << TB_FLAGS_TRACE)
 
 static inline void cpu_get_tb_cpu_state(CPUM68KState *env, target_ulong *pc,
                                         target_ulong *cs_base, uint32_t *flags)
@@ -602,6 +607,9 @@ static inline void cpu_get_tb_cpu_state(CPUM68KState *env, target_ulong *pc,
         *flags |= (env->sfc << (TB_FLAGS_SFC_S_BIT - 2)) & TB_FLAGS_SFC_S;
         *flags |= (env->dfc << (TB_FLAGS_DFC_S_BIT - 2)) & TB_FLAGS_DFC_S;
     }
+    if (M68K_SR_TRACE(env->sr) == M68K_SR_TRACE_ANY_INS) {
+        *flags |= TB_FLAGS_TRACE;
+    }
 }
 
 void dump_mmu(CPUM68KState *env);