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[PATCH v3 07/60] target/arm: Extend store_cpu_offset to take field size
From: |
Richard Henderson |
Subject: |
[PATCH v3 07/60] target/arm: Extend store_cpu_offset to take field size |
Date: |
Sun, 17 Apr 2022 10:43:33 -0700 |
Currently we assume all fields are 32-bit.
Prepare for fields of a single byte, using sizeof.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
target/arm/translate-a32.h | 13 +++++--------
target/arm/translate.c | 21 ++++++++++++++++++++-
2 files changed, 25 insertions(+), 9 deletions(-)
diff --git a/target/arm/translate-a32.h b/target/arm/translate-a32.h
index 5be4b9b834..f593740a88 100644
--- a/target/arm/translate-a32.h
+++ b/target/arm/translate-a32.h
@@ -61,17 +61,14 @@ static inline TCGv_i32 load_cpu_offset(int offset)
#define load_cpu_field(name) load_cpu_offset(offsetof(CPUARMState, name))
-static inline void store_cpu_offset(TCGv_i32 var, int offset)
-{
- tcg_gen_st_i32(var, cpu_env, offset);
- tcg_temp_free_i32(var);
-}
+void store_cpu_offset(TCGv_i32 var, int offset, int size);
-#define store_cpu_field(var, name) \
- store_cpu_offset(var, offsetof(CPUARMState, name))
+#define store_cpu_field(var, name) \
+ store_cpu_offset(var, offsetof(CPUARMState, name), \
+ sizeof(((CPUARMState *)NULL)->name))
#define store_cpu_field_constant(val, name) \
- tcg_gen_st_i32(tcg_constant_i32(val), cpu_env, offsetof(CPUARMState, name))
+ store_cpu_field(tcg_constant_i32(val), name)
/* Create a new temporary and set it to the value of a CPU register. */
static inline TCGv_i32 load_reg(DisasContext *s, int reg)
diff --git a/target/arm/translate.c b/target/arm/translate.c
index 480e58f49e..c745b7fc91 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -180,6 +180,25 @@ typedef enum ISSInfo {
ISSIs16Bit = (1 << 8),
} ISSInfo;
+/*
+ * Store var into env + offset to a member with size bytes.
+ * Free var after use.
+ */
+void store_cpu_offset(TCGv_i32 var, int offset, int size)
+{
+ switch (size) {
+ case 1:
+ tcg_gen_st8_i32(var, cpu_env, offset);
+ break;
+ case 4:
+ tcg_gen_st_i32(var, cpu_env, offset);
+ break;
+ default:
+ g_assert_not_reached();
+ }
+ tcg_temp_free_i32(var);
+}
+
/* Save the syndrome information for a Data Abort */
static void disas_set_da_iss(DisasContext *s, MemOp memop, ISSInfo issinfo)
{
@@ -4852,7 +4871,7 @@ static void do_coproc_insn(DisasContext *s, int cpnum,
int is64,
tcg_temp_free_i32(tmp);
} else {
TCGv_i32 tmp = load_reg(s, rt);
- store_cpu_offset(tmp, ri->fieldoffset);
+ store_cpu_offset(tmp, ri->fieldoffset, 4);
}
}
}
--
2.25.1
- Re: [PATCH v3 08/60] target/arm: Change DisasContext.thumb to bool, (continued)
[PATCH v3 09/60] target/arm: Change CPUArchState.thumb to bool, Richard Henderson, 2022/04/17
[PATCH v3 19/60] target/arm: Use tcg_constant in translate-neon.c, Richard Henderson, 2022/04/17
[PATCH v3 16/60] target/arm: Simplify aa32 DISAS_WFI, Richard Henderson, 2022/04/17
[PATCH v3 15/60] target/arm: Simplify gen_sar, Richard Henderson, 2022/04/17
[PATCH v3 07/60] target/arm: Extend store_cpu_offset to take field size,
Richard Henderson <=
[PATCH v3 11/60] target/arm: Split out set_btype_raw, Richard Henderson, 2022/04/17
[PATCH v3 14/60] target/arm: Simplify GEN_SHIFT in translate.c, Richard Henderson, 2022/04/17
[PATCH v3 10/60] target/arm: Remove fpexc32_access, Richard Henderson, 2022/04/17
[PATCH v3 12/60] target/arm: Split out gen_rebuild_hflags, Richard Henderson, 2022/04/17