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| author | Richard Henderson <rth@twiddle.net> | 2020-02-15 21:40:01 -0800 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2020-02-28 10:58:41 -0800 |
| commit | d6fa50f536b2e4422f3065b6a11c4f8e42676f47 (patch) | |
| tree | bde73f3e469f42a8357e5b586d8bb9051f8885b0 /tcg | |
| parent | b59ea3640cc03f1f609fc5155605be71f43bcd2e (diff) | |
| download | qemu-d6fa50f536b2e4422f3065b6a11c4f8e42676f47.zip qemu-d6fa50f536b2e4422f3065b6a11c4f8e42676f47.tar.gz qemu-d6fa50f536b2e4422f3065b6a11c4f8e42676f47.tar.bz2 | |
tcg/arm: Split out tcg_out_epilogue
We will shortly use this function from tcg_out_op as well.
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'tcg')
| -rw-r--r-- | tcg/arm/tcg-target.inc.c | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/tcg/arm/tcg-target.inc.c b/tcg/arm/tcg-target.inc.c index fffb661..e1aa740 100644 --- a/tcg/arm/tcg-target.inc.c +++ b/tcg/arm/tcg-target.inc.c @@ -1746,6 +1746,7 @@ static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, bool is64) } static tcg_insn_unit *tb_ret_addr; +static void tcg_out_epilogue(TCGContext *s); static inline void tcg_out_op(TCGContext *s, TCGOpcode opc, const TCGArg *args, const int *const_args) @@ -2284,19 +2285,17 @@ static void tcg_out_nop_fill(tcg_insn_unit *p, int count) + TCG_TARGET_STACK_ALIGN - 1) \ & -TCG_TARGET_STACK_ALIGN) +#define STACK_ADDEND (FRAME_SIZE - PUSH_SIZE) + static void tcg_target_qemu_prologue(TCGContext *s) { - int stack_addend; - /* Calling convention requires us to save r4-r11 and lr. */ /* stmdb sp!, { r4 - r11, lr } */ tcg_out32(s, (COND_AL << 28) | 0x092d4ff0); /* Reserve callee argument and tcg temp space. */ - stack_addend = FRAME_SIZE - PUSH_SIZE; - tcg_out_dat_rI(s, COND_AL, ARITH_SUB, TCG_REG_CALL_STACK, - TCG_REG_CALL_STACK, stack_addend, 1); + TCG_REG_CALL_STACK, STACK_ADDEND, 1); tcg_set_frame(s, TCG_REG_CALL_STACK, TCG_STATIC_CALL_ARGS_SIZE, CPU_TEMP_BUF_NLONGS * sizeof(long)); @@ -2310,11 +2309,15 @@ static void tcg_target_qemu_prologue(TCGContext *s) */ s->code_gen_epilogue = s->code_ptr; tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R0, 0); - - /* TB epilogue */ tb_ret_addr = s->code_ptr; + tcg_out_epilogue(s); +} + +static void tcg_out_epilogue(TCGContext *s) +{ + /* Release local stack frame. */ tcg_out_dat_rI(s, COND_AL, ARITH_ADD, TCG_REG_CALL_STACK, - TCG_REG_CALL_STACK, stack_addend, 1); + TCG_REG_CALL_STACK, STACK_ADDEND, 1); /* ldmia sp!, { r4 - r11, pc } */ tcg_out32(s, (COND_AL << 28) | 0x08bd8ff0); |