[v6] tcg-plugins: add hooks for discontinuities

[PATCH v6 21/25] target/tricore: call plugin trap callbacks

Julian Ganz posted 25 patches 1 day, 18 hours ago

Diff against v3 v5
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Maintainers: "Alex Bennée" <alex.bennee@linaro.org>, Alexandre Iooss <erdnaxe@crans.org>, Mahmoud Mandour <ma.mandourr@gmail.com>, Pierrick Bouvier <pierrick.bouvier@linaro.org>, Richard Henderson <richard.henderson@linaro.org>, Peter Maydell <peter.maydell@linaro.org>, Michael Rolnik <mrolnik@gmail.com>, Helge Deller <deller@gmx.de>, Paolo Bonzini <pbonzini@redhat.com>, Eduardo Habkost <eduardo@habkost.net>, Song Gao <gaosong@loongson.cn>, Laurent Vivier <laurent@vivier.eu>, "Edgar E. Iglesias" <edgar.iglesias@gmail.com>, "Philippe Mathieu-Daudé" <philmd@linaro.org>, Aurelien Jarno <aurelien@aurel32.net>, Jiaxun Yang <jiaxun.yang@flygoat.com>, Aleksandar Rikalo <arikalo@gmail.com>, Stafford Horne <shorne@gmail.com>, Nicholas Piggin <npiggin@gmail.com>, Chinmay Rath <rathc@linux.ibm.com>, Palmer Dabbelt <palmer@dabbelt.com>, Alistair Francis <alistair.francis@wdc.com>, Weiwei Li <liwei1518@gmail.com>, Daniel Henrique Barboza <dbarboza@ventanamicro.com>, Liu Zhiwei <zhiwei_liu@linux.alibaba.com>, Yoshinori Sato <yoshinori.sato@nifty.com>, David Hildenbrand <david@redhat.com>, Ilya Leoshkevich <iii@linux.ibm.com>, Thomas Huth <thuth@redhat.com>, Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>, Artyom Tarasenko <atar4qemu@gmail.com>, Bastian Koppelmann <kbastian@mail.uni-paderborn.de>, Max Filippov <jcmvbkbc@gmail.com>

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[PATCH v6 21/25] target/tricore: call plugin trap callbacks

Posted by Julian Ganz 1 day, 18 hours ago

We recently introduced API for registering callbacks for trap related
events as well as the corresponding hook functions. Due to differences
between architectures, the latter need to be called from target specific
code.

This change places an exception hook for TriCore targets. Interrupts are
not implemented for this target and it has no host calls.

Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Julian Ganz <neither@nut.email>
---
 target/tricore/op_helper.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/target/tricore/op_helper.c b/target/tricore/op_helper.c
index 9910c13f4b..9bd6ce55d1 100644
--- a/target/tricore/op_helper.c
+++ b/target/tricore/op_helper.c
@@ -19,6 +19,7 @@
 #include "qemu/host-utils.h"
 #include "exec/helper-proto.h"
 #include "accel/tcg/cpu-ldst.h"
+#include "qemu/plugin.h"
 #include <zlib.h> /* for crc32 */
 
 
@@ -29,8 +30,11 @@ void raise_exception_sync_internal(CPUTriCoreState *env, uint32_t class, int tin
                                    uintptr_t pc, uint32_t fcd_pc)
 {
     CPUState *cs = env_cpu(env);
+    uint64_t last_pc;
+
     /* in case we come from a helper-call we need to restore the PC */
     cpu_restore_state(cs, pc);
+    last_pc = env->PC;
 
     /* Tin is loaded into d[15] */
     env->gpr_d[15] = tin;
@@ -90,6 +94,7 @@ void raise_exception_sync_internal(CPUTriCoreState *env, uint32_t class, int tin
     /* Update PC using the trap vector table */
     env->PC = env->BTV | (class << 5);
 
+    qemu_plugin_vcpu_exception_cb(cs, last_pc);
     cpu_loop_exit(cs);
 }
 
-- 
2.49.1