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authorLluís Vilanova <vilanova@ac.upc.edu>2016-06-09 19:31:47 +0200
committerStefan Hajnoczi <stefanha@redhat.com>2016-06-20 17:21:56 +0100
commitdcdaadb6ea873159487aa2fdbee2c4aa7779e02d (patch)
tree767536fb99ccab715bbd47af0587c1e356a9621a /tcg
parent7c2550432abe62f53e6df878ceba6ceaf71f0e7e (diff)
trace: [all] Add "guest_mem_before" event
The event is described in "trace-events". Note that the "MO_AMASK" flag is not traced, since it does not seem to affect the visible semantics of instructions. [s/inline inline/inline/ to fix clang build. --Stefan] Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Reviewed-by: Richard Henderson <rth@twiddle.net> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 146549350711.18437.726780393247474362.stgit@fimbulvetr.bsc.es Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'tcg')
-rw-r--r--tcg/tcg-op.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/tcg/tcg-op.c b/tcg/tcg-op.c
index 54c02777c5..569cdc642e 100644
--- a/tcg/tcg-op.c
+++ b/tcg/tcg-op.c
@@ -28,6 +28,8 @@
#include "exec/exec-all.h"
#include "tcg.h"
#include "tcg-op.h"
+#include "trace-tcg.h"
+#include "trace/mem.h"
/* Reduce the number of ifdefs below. This assumes that all uses of
TCGV_HIGH and TCGV_LOW are properly protected by a conditional that
@@ -1910,12 +1912,16 @@ static void gen_ldst_i64(TCGOpcode opc, TCGv_i64 val, TCGv addr,
void tcg_gen_qemu_ld_i32(TCGv_i32 val, TCGv addr, TCGArg idx, TCGMemOp memop)
{
memop = tcg_canonicalize_memop(memop, 0, 0);
+ trace_guest_mem_before_tcg(tcg_ctx.cpu, tcg_ctx.tcg_env,
+ addr, trace_mem_get_info(memop, 0));
gen_ldst_i32(INDEX_op_qemu_ld_i32, val, addr, memop, idx);
}
void tcg_gen_qemu_st_i32(TCGv_i32 val, TCGv addr, TCGArg idx, TCGMemOp memop)
{
memop = tcg_canonicalize_memop(memop, 0, 1);
+ trace_guest_mem_before_tcg(tcg_ctx.cpu, tcg_ctx.tcg_env,
+ addr, trace_mem_get_info(memop, 1));
gen_ldst_i32(INDEX_op_qemu_st_i32, val, addr, memop, idx);
}
@@ -1932,6 +1938,8 @@ void tcg_gen_qemu_ld_i64(TCGv_i64 val, TCGv addr, TCGArg idx, TCGMemOp memop)
}
memop = tcg_canonicalize_memop(memop, 1, 0);
+ trace_guest_mem_before_tcg(tcg_ctx.cpu, tcg_ctx.tcg_env,
+ addr, trace_mem_get_info(memop, 0));
gen_ldst_i64(INDEX_op_qemu_ld_i64, val, addr, memop, idx);
}
@@ -1943,5 +1951,7 @@ void tcg_gen_qemu_st_i64(TCGv_i64 val, TCGv addr, TCGArg idx, TCGMemOp memop)
}
memop = tcg_canonicalize_memop(memop, 1, 1);
+ trace_guest_mem_before_tcg(tcg_ctx.cpu, tcg_ctx.tcg_env,
+ addr, trace_mem_get_info(memop, 1));
gen_ldst_i64(INDEX_op_qemu_st_i64, val, addr, memop, idx);
}