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/*
* Copyright (C) 2021 Igalia S.L.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "MacroAssembler.h"
#if ENABLE(ASSEMBLER) && CPU(RISCV64)
#include "OperationResult.h"
#include "ProbeContext.h"
#include <wtf/InlineASM.h>
namespace JSC {
JSC_DECLARE_NOEXCEPT_JIT_OPERATION(ctiMasmProbeTrampoline, void, ());
JSC_ANNOTATE_JIT_OPERATION_PROBE(ctiMasmProbeTrampoline);
using namespace RISCV64Registers;
#define PTR_SIZE 8
#define GPREG_SIZE 8
#define FPREG_SIZE 8
#define PROBE_PROBE_FUNCTION_OFFSET (0 * PTR_SIZE)
#define PROBE_ARG_OFFSET (1 * PTR_SIZE)
#define PROBE_INITIALIZE_STACK_FUNCTION_OFFSET (2 * PTR_SIZE)
#define PROBE_INITIALIZE_STACK_ARG_OFFSET (3 * PTR_SIZE)
#define PROBE_CONTEXT_STATE_SIZE (4 * PTR_SIZE)
#define PROBE_FIRST_GPREG_OFFSET PROBE_CONTEXT_STATE_SIZE
#define PROBE_CPU_X0_OFFSET (PROBE_FIRST_GPREG_OFFSET + (0 * GPREG_SIZE))
#define PROBE_CPU_X1_OFFSET (PROBE_FIRST_GPREG_OFFSET + (1 * GPREG_SIZE))
#define PROBE_CPU_X2_OFFSET (PROBE_FIRST_GPREG_OFFSET + (2 * GPREG_SIZE))
#define PROBE_CPU_X3_OFFSET (PROBE_FIRST_GPREG_OFFSET + (3 * GPREG_SIZE))
#define PROBE_CPU_X4_OFFSET (PROBE_FIRST_GPREG_OFFSET + (4 * GPREG_SIZE))
#define PROBE_CPU_X5_OFFSET (PROBE_FIRST_GPREG_OFFSET + (5 * GPREG_SIZE))
#define PROBE_CPU_X6_OFFSET (PROBE_FIRST_GPREG_OFFSET + (6 * GPREG_SIZE))
#define PROBE_CPU_X7_OFFSET (PROBE_FIRST_GPREG_OFFSET + (7 * GPREG_SIZE))
#define PROBE_CPU_X8_OFFSET (PROBE_FIRST_GPREG_OFFSET + (8 * GPREG_SIZE))
#define PROBE_CPU_X9_OFFSET (PROBE_FIRST_GPREG_OFFSET + (9 * GPREG_SIZE))
#define PROBE_CPU_X10_OFFSET (PROBE_FIRST_GPREG_OFFSET + (10 * GPREG_SIZE))
#define PROBE_CPU_X11_OFFSET (PROBE_FIRST_GPREG_OFFSET + (11 * GPREG_SIZE))
#define PROBE_CPU_X12_OFFSET (PROBE_FIRST_GPREG_OFFSET + (12 * GPREG_SIZE))
#define PROBE_CPU_X13_OFFSET (PROBE_FIRST_GPREG_OFFSET + (13 * GPREG_SIZE))
#define PROBE_CPU_X14_OFFSET (PROBE_FIRST_GPREG_OFFSET + (14 * GPREG_SIZE))
#define PROBE_CPU_X15_OFFSET (PROBE_FIRST_GPREG_OFFSET + (15 * GPREG_SIZE))
#define PROBE_CPU_X16_OFFSET (PROBE_FIRST_GPREG_OFFSET + (16 * GPREG_SIZE))
#define PROBE_CPU_X17_OFFSET (PROBE_FIRST_GPREG_OFFSET + (17 * GPREG_SIZE))
#define PROBE_CPU_X18_OFFSET (PROBE_FIRST_GPREG_OFFSET + (18 * GPREG_SIZE))
#define PROBE_CPU_X19_OFFSET (PROBE_FIRST_GPREG_OFFSET + (19 * GPREG_SIZE))
#define PROBE_CPU_X20_OFFSET (PROBE_FIRST_GPREG_OFFSET + (20 * GPREG_SIZE))
#define PROBE_CPU_X21_OFFSET (PROBE_FIRST_GPREG_OFFSET + (21 * GPREG_SIZE))
#define PROBE_CPU_X22_OFFSET (PROBE_FIRST_GPREG_OFFSET + (22 * GPREG_SIZE))
#define PROBE_CPU_X23_OFFSET (PROBE_FIRST_GPREG_OFFSET + (23 * GPREG_SIZE))
#define PROBE_CPU_X24_OFFSET (PROBE_FIRST_GPREG_OFFSET + (24 * GPREG_SIZE))
#define PROBE_CPU_X25_OFFSET (PROBE_FIRST_GPREG_OFFSET + (25 * GPREG_SIZE))
#define PROBE_CPU_X26_OFFSET (PROBE_FIRST_GPREG_OFFSET + (26 * GPREG_SIZE))
#define PROBE_CPU_X27_OFFSET (PROBE_FIRST_GPREG_OFFSET + (27 * GPREG_SIZE))
#define PROBE_CPU_X28_OFFSET (PROBE_FIRST_GPREG_OFFSET + (28 * GPREG_SIZE))
#define PROBE_CPU_X29_OFFSET (PROBE_FIRST_GPREG_OFFSET + (29 * GPREG_SIZE))
#define PROBE_CPU_X30_OFFSET (PROBE_FIRST_GPREG_OFFSET + (30 * GPREG_SIZE))
#define PROBE_CPU_X31_OFFSET (PROBE_FIRST_GPREG_OFFSET + (31 * GPREG_SIZE))
#define PROBE_CPU_GPREG_ARRAY_SIZE (32 * GPREG_SIZE)
#define PROBE_FIRST_SPREG_OFFSET PROBE_CONTEXT_STATE_SIZE + PROBE_CPU_GPREG_ARRAY_SIZE
#define PROBE_CPU_PC_OFFSET (PROBE_FIRST_SPREG_OFFSET + (0 * GPREG_SIZE))
#define PROBE_CPU_SPREG_ARRAY_SIZE (1 * GPREG_SIZE)
#define PROBE_FIRST_FPREG_OFFSET PROBE_CONTEXT_STATE_SIZE + PROBE_CPU_GPREG_ARRAY_SIZE + PROBE_CPU_SPREG_ARRAY_SIZE
#define PROBE_CPU_F0_OFFSET (PROBE_FIRST_FPREG_OFFSET + (0 * FPREG_SIZE))
#define PROBE_CPU_F1_OFFSET (PROBE_FIRST_FPREG_OFFSET + (1 * FPREG_SIZE))
#define PROBE_CPU_F2_OFFSET (PROBE_FIRST_FPREG_OFFSET + (2 * FPREG_SIZE))
#define PROBE_CPU_F3_OFFSET (PROBE_FIRST_FPREG_OFFSET + (3 * FPREG_SIZE))
#define PROBE_CPU_F4_OFFSET (PROBE_FIRST_FPREG_OFFSET + (4 * FPREG_SIZE))
#define PROBE_CPU_F5_OFFSET (PROBE_FIRST_FPREG_OFFSET + (5 * FPREG_SIZE))
#define PROBE_CPU_F6_OFFSET (PROBE_FIRST_FPREG_OFFSET + (6 * FPREG_SIZE))
#define PROBE_CPU_F7_OFFSET (PROBE_FIRST_FPREG_OFFSET + (7 * FPREG_SIZE))
#define PROBE_CPU_F8_OFFSET (PROBE_FIRST_FPREG_OFFSET + (8 * FPREG_SIZE))
#define PROBE_CPU_F9_OFFSET (PROBE_FIRST_FPREG_OFFSET + (9 * FPREG_SIZE))
#define PROBE_CPU_F10_OFFSET (PROBE_FIRST_FPREG_OFFSET + (10 * FPREG_SIZE))
#define PROBE_CPU_F11_OFFSET (PROBE_FIRST_FPREG_OFFSET + (11 * FPREG_SIZE))
#define PROBE_CPU_F12_OFFSET (PROBE_FIRST_FPREG_OFFSET + (12 * FPREG_SIZE))
#define PROBE_CPU_F13_OFFSET (PROBE_FIRST_FPREG_OFFSET + (13 * FPREG_SIZE))
#define PROBE_CPU_F14_OFFSET (PROBE_FIRST_FPREG_OFFSET + (14 * FPREG_SIZE))
#define PROBE_CPU_F15_OFFSET (PROBE_FIRST_FPREG_OFFSET + (15 * FPREG_SIZE))
#define PROBE_CPU_F16_OFFSET (PROBE_FIRST_FPREG_OFFSET + (16 * FPREG_SIZE))
#define PROBE_CPU_F17_OFFSET (PROBE_FIRST_FPREG_OFFSET + (17 * FPREG_SIZE))
#define PROBE_CPU_F18_OFFSET (PROBE_FIRST_FPREG_OFFSET + (18 * FPREG_SIZE))
#define PROBE_CPU_F19_OFFSET (PROBE_FIRST_FPREG_OFFSET + (19 * FPREG_SIZE))
#define PROBE_CPU_F20_OFFSET (PROBE_FIRST_FPREG_OFFSET + (20 * FPREG_SIZE))
#define PROBE_CPU_F21_OFFSET (PROBE_FIRST_FPREG_OFFSET + (21 * FPREG_SIZE))
#define PROBE_CPU_F22_OFFSET (PROBE_FIRST_FPREG_OFFSET + (22 * FPREG_SIZE))
#define PROBE_CPU_F23_OFFSET (PROBE_FIRST_FPREG_OFFSET + (23 * FPREG_SIZE))
#define PROBE_CPU_F24_OFFSET (PROBE_FIRST_FPREG_OFFSET + (24 * FPREG_SIZE))
#define PROBE_CPU_F25_OFFSET (PROBE_FIRST_FPREG_OFFSET + (25 * FPREG_SIZE))
#define PROBE_CPU_F26_OFFSET (PROBE_FIRST_FPREG_OFFSET + (26 * FPREG_SIZE))
#define PROBE_CPU_F27_OFFSET (PROBE_FIRST_FPREG_OFFSET + (27 * FPREG_SIZE))
#define PROBE_CPU_F28_OFFSET (PROBE_FIRST_FPREG_OFFSET + (28 * FPREG_SIZE))
#define PROBE_CPU_F29_OFFSET (PROBE_FIRST_FPREG_OFFSET + (29 * FPREG_SIZE))
#define PROBE_CPU_F30_OFFSET (PROBE_FIRST_FPREG_OFFSET + (30 * FPREG_SIZE))
#define PROBE_CPU_F31_OFFSET (PROBE_FIRST_FPREG_OFFSET + (31 * FPREG_SIZE))
#define PROBE_CPU_FPREG_ARRAY_SIZE (32 * FPREG_SIZE)
#define PROBE_SIZE (PROBE_CONTEXT_STATE_SIZE + PROBE_CPU_GPREG_ARRAY_SIZE + PROBE_CPU_SPREG_ARRAY_SIZE + PROBE_CPU_FPREG_ARRAY_SIZE)
#define PROBE_SAVED_RETURN_PC_OFFSET PROBE_SIZE
#define PROBE_SAVED_RETURN_PC_SIZE (1 * GPREG_SIZE)
#define PROBE_OFFSETOF(x) offsetof(struct Probe::State, x)
static_assert(PROBE_OFFSETOF(probeFunction) == PROBE_PROBE_FUNCTION_OFFSET);
static_assert(PROBE_OFFSETOF(arg) == PROBE_ARG_OFFSET);
static_assert(PROBE_OFFSETOF(initializeStackFunction) == PROBE_INITIALIZE_STACK_FUNCTION_OFFSET);
static_assert(PROBE_OFFSETOF(initializeStackArg) == PROBE_INITIALIZE_STACK_ARG_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.gprs[RISCV64Registers::x0]) == PROBE_CPU_X0_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.gprs[RISCV64Registers::x1]) == PROBE_CPU_X1_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.gprs[RISCV64Registers::x2]) == PROBE_CPU_X2_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.gprs[RISCV64Registers::x3]) == PROBE_CPU_X3_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.gprs[RISCV64Registers::x4]) == PROBE_CPU_X4_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.gprs[RISCV64Registers::x5]) == PROBE_CPU_X5_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.gprs[RISCV64Registers::x6]) == PROBE_CPU_X6_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.gprs[RISCV64Registers::x7]) == PROBE_CPU_X7_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.gprs[RISCV64Registers::x8]) == PROBE_CPU_X8_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.gprs[RISCV64Registers::x9]) == PROBE_CPU_X9_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.gprs[RISCV64Registers::x10]) == PROBE_CPU_X10_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.gprs[RISCV64Registers::x11]) == PROBE_CPU_X11_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.gprs[RISCV64Registers::x12]) == PROBE_CPU_X12_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.gprs[RISCV64Registers::x13]) == PROBE_CPU_X13_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.gprs[RISCV64Registers::x14]) == PROBE_CPU_X14_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.gprs[RISCV64Registers::x15]) == PROBE_CPU_X15_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.gprs[RISCV64Registers::x16]) == PROBE_CPU_X16_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.gprs[RISCV64Registers::x17]) == PROBE_CPU_X17_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.gprs[RISCV64Registers::x18]) == PROBE_CPU_X18_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.gprs[RISCV64Registers::x19]) == PROBE_CPU_X19_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.gprs[RISCV64Registers::x20]) == PROBE_CPU_X20_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.gprs[RISCV64Registers::x21]) == PROBE_CPU_X21_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.gprs[RISCV64Registers::x22]) == PROBE_CPU_X22_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.gprs[RISCV64Registers::x23]) == PROBE_CPU_X23_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.gprs[RISCV64Registers::x24]) == PROBE_CPU_X24_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.gprs[RISCV64Registers::x25]) == PROBE_CPU_X25_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.gprs[RISCV64Registers::x26]) == PROBE_CPU_X26_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.gprs[RISCV64Registers::x27]) == PROBE_CPU_X27_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.gprs[RISCV64Registers::x28]) == PROBE_CPU_X28_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.gprs[RISCV64Registers::x29]) == PROBE_CPU_X29_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.gprs[RISCV64Registers::x30]) == PROBE_CPU_X30_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.gprs[RISCV64Registers::x31]) == PROBE_CPU_X31_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.sprs[RISCV64Registers::pc]) == PROBE_CPU_PC_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.fprs.fprs[RISCV64Registers::f0]) == PROBE_CPU_F0_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.fprs.fprs[RISCV64Registers::f1]) == PROBE_CPU_F1_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.fprs.fprs[RISCV64Registers::f2]) == PROBE_CPU_F2_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.fprs.fprs[RISCV64Registers::f3]) == PROBE_CPU_F3_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.fprs.fprs[RISCV64Registers::f4]) == PROBE_CPU_F4_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.fprs.fprs[RISCV64Registers::f5]) == PROBE_CPU_F5_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.fprs.fprs[RISCV64Registers::f6]) == PROBE_CPU_F6_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.fprs.fprs[RISCV64Registers::f7]) == PROBE_CPU_F7_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.fprs.fprs[RISCV64Registers::f8]) == PROBE_CPU_F8_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.fprs.fprs[RISCV64Registers::f9]) == PROBE_CPU_F9_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.fprs.fprs[RISCV64Registers::f10]) == PROBE_CPU_F10_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.fprs.fprs[RISCV64Registers::f11]) == PROBE_CPU_F11_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.fprs.fprs[RISCV64Registers::f12]) == PROBE_CPU_F12_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.fprs.fprs[RISCV64Registers::f13]) == PROBE_CPU_F13_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.fprs.fprs[RISCV64Registers::f14]) == PROBE_CPU_F14_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.fprs.fprs[RISCV64Registers::f15]) == PROBE_CPU_F15_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.fprs.fprs[RISCV64Registers::f16]) == PROBE_CPU_F16_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.fprs.fprs[RISCV64Registers::f17]) == PROBE_CPU_F17_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.fprs.fprs[RISCV64Registers::f18]) == PROBE_CPU_F18_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.fprs.fprs[RISCV64Registers::f19]) == PROBE_CPU_F19_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.fprs.fprs[RISCV64Registers::f20]) == PROBE_CPU_F20_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.fprs.fprs[RISCV64Registers::f21]) == PROBE_CPU_F21_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.fprs.fprs[RISCV64Registers::f22]) == PROBE_CPU_F22_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.fprs.fprs[RISCV64Registers::f23]) == PROBE_CPU_F23_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.fprs.fprs[RISCV64Registers::f24]) == PROBE_CPU_F24_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.fprs.fprs[RISCV64Registers::f25]) == PROBE_CPU_F25_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.fprs.fprs[RISCV64Registers::f26]) == PROBE_CPU_F26_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.fprs.fprs[RISCV64Registers::f27]) == PROBE_CPU_F27_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.fprs.fprs[RISCV64Registers::f28]) == PROBE_CPU_F28_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.fprs.fprs[RISCV64Registers::f29]) == PROBE_CPU_F29_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.fprs.fprs[RISCV64Registers::f30]) == PROBE_CPU_F30_OFFSET);
static_assert(PROBE_OFFSETOF(cpu.fprs.fprs[RISCV64Registers::f31]) == PROBE_CPU_F31_OFFSET);
static_assert(sizeof(Probe::State) == PROBE_SIZE);
#define PROBE_ALIGNED_STACK_SIZE (PROBE_SIZE + PROBE_SAVED_RETURN_PC_SIZE)
static_assert(!(PROBE_ALIGNED_STACK_SIZE & 0xf));
struct IncomingProbeRecord {
UCPURegister x1;
UCPURegister x25;
UCPURegister x26;
UCPURegister x27;
};
#define IN_X1_OFFSET (0 * GPREG_SIZE)
#define IN_X25_OFFSET (1 * GPREG_SIZE)
#define IN_X26_OFFSET (2 * GPREG_SIZE)
#define IN_X27_OFFSET (3 * GPREG_SIZE)
#define IN_SIZE (4 * GPREG_SIZE)
static_assert(offsetof(IncomingProbeRecord, x1) == IN_X1_OFFSET);
static_assert(offsetof(IncomingProbeRecord, x25) == IN_X25_OFFSET);
static_assert(offsetof(IncomingProbeRecord, x26) == IN_X26_OFFSET);
static_assert(offsetof(IncomingProbeRecord, x27) == IN_X27_OFFSET);
static_assert(sizeof(IncomingProbeRecord) == IN_SIZE);
static_assert(!(IN_SIZE & 0xf));
struct OutgoingProbeRecord {
UCPURegister x25;
UCPURegister x26;
UCPURegister x27;
UCPURegister x8;
UCPURegister x1;
UCPURegister padding;
};
#define OUT_X25_OFFSET (0 * GPREG_SIZE)
#define OUT_X26_OFFSET (1 * GPREG_SIZE)
#define OUT_X27_OFFSET (2 * GPREG_SIZE)
#define OUT_X8_OFFSET (3 * GPREG_SIZE)
#define OUT_X1_OFFSET (4 * GPREG_SIZE)
#define OUT_SIZE (6 * GPREG_SIZE)
static_assert(offsetof(OutgoingProbeRecord, x25) == OUT_X25_OFFSET);
static_assert(offsetof(OutgoingProbeRecord, x26) == OUT_X26_OFFSET);
static_assert(offsetof(OutgoingProbeRecord, x27) == OUT_X27_OFFSET);
static_assert(offsetof(OutgoingProbeRecord, x8) == OUT_X8_OFFSET);
static_assert(offsetof(OutgoingProbeRecord, x1) == OUT_X1_OFFSET);
static_assert(sizeof(OutgoingProbeRecord) == OUT_SIZE);
static_assert(!(OUT_SIZE & 0xf));
struct RARestorationRecord {
UCPURegister ra;
UCPURegister padding;
};
#define RA_RESTORATION_RA_OFFSET (0 * GPREG_SIZE)
#define RA_RESTORATION_SIZE (2 * GPREG_SIZE)
static_assert(offsetof(RARestorationRecord, ra) == RA_RESTORATION_RA_OFFSET);
static_assert(sizeof(RARestorationRecord) == RA_RESTORATION_SIZE);
static_assert(!(RA_RESTORATION_SIZE & 0xf));
asm(
".text" "\n"
".globl " SYMBOL_STRING(ctiMasmProbeTrampoline) "\n"
".attribute arch, \"rv64gc\"" "\n"
HIDE_SYMBOL(ctiMasmProbeTrampoline) "\n"
SYMBOL_STRING(ctiMasmProbeTrampoline) ":" "\n"
"mv x27, sp" "\n"
"addi sp, sp, " STRINGIZE_VALUE_OF(-(PROBE_ALIGNED_STACK_SIZE + OUT_SIZE)) "\n"
"sd x25, " STRINGIZE_VALUE_OF(PROBE_PROBE_FUNCTION_OFFSET) "(sp)" "\n"
"sd x26, " STRINGIZE_VALUE_OF(PROBE_ARG_OFFSET) "(sp)" "\n"
"addi x26, x27, " STRINGIZE_VALUE_OF(IN_SIZE) "\n"
// Move over the link register
"ld x25, " STRINGIZE_VALUE_OF(IN_X1_OFFSET) "(x27)" "\n"
"sd x25, " STRINGIZE_VALUE_OF(PROBE_CPU_X1_OFFSET) "(sp)" "\n"
// Insert the original sp value
"sd x26, " STRINGIZE_VALUE_OF(PROBE_CPU_X2_OFFSET) "(sp)" "\n"
// Also handle x25, x26 and x27
"ld x25, " STRINGIZE_VALUE_OF(IN_X25_OFFSET) "(x27)" "\n"
"sd x25, " STRINGIZE_VALUE_OF(PROBE_CPU_X25_OFFSET) "(sp)" "\n"
"ld x25, " STRINGIZE_VALUE_OF(IN_X26_OFFSET) "(x27)" "\n"
"sd x25, " STRINGIZE_VALUE_OF(PROBE_CPU_X26_OFFSET) "(sp)" "\n"
"ld x25, " STRINGIZE_VALUE_OF(IN_X27_OFFSET) "(x27)" "\n"
"sd x25, " STRINGIZE_VALUE_OF(PROBE_CPU_X27_OFFSET) "(sp)" "\n"
// x0 -- zero register, stored for completeness
"sd x0, " STRINGIZE_VALUE_OF(PROBE_CPU_X0_OFFSET) "(sp)" "\n"
// x1 -- return address register, handled above
// x2 -- stack pointer register, handled above
// x3 -- global pointer, not stored
// x4 -- thread pointer, not stored
"sd x5, " STRINGIZE_VALUE_OF(PROBE_CPU_X5_OFFSET) "(sp)" "\n"
"sd x6, " STRINGIZE_VALUE_OF(PROBE_CPU_X6_OFFSET) "(sp)" "\n"
"sd x7, " STRINGIZE_VALUE_OF(PROBE_CPU_X7_OFFSET) "(sp)" "\n"
"sd x8, " STRINGIZE_VALUE_OF(PROBE_CPU_X8_OFFSET) "(sp)" "\n"
"sd x9, " STRINGIZE_VALUE_OF(PROBE_CPU_X9_OFFSET) "(sp)" "\n"
"sd x10, " STRINGIZE_VALUE_OF(PROBE_CPU_X10_OFFSET) "(sp)" "\n"
"sd x11, " STRINGIZE_VALUE_OF(PROBE_CPU_X11_OFFSET) "(sp)" "\n"
"sd x12, " STRINGIZE_VALUE_OF(PROBE_CPU_X12_OFFSET) "(sp)" "\n"
"sd x13, " STRINGIZE_VALUE_OF(PROBE_CPU_X13_OFFSET) "(sp)" "\n"
"sd x14, " STRINGIZE_VALUE_OF(PROBE_CPU_X14_OFFSET) "(sp)" "\n"
"sd x15, " STRINGIZE_VALUE_OF(PROBE_CPU_X15_OFFSET) "(sp)" "\n"
"sd x16, " STRINGIZE_VALUE_OF(PROBE_CPU_X16_OFFSET) "(sp)" "\n"
"sd x17, " STRINGIZE_VALUE_OF(PROBE_CPU_X17_OFFSET) "(sp)" "\n"
"sd x18, " STRINGIZE_VALUE_OF(PROBE_CPU_X18_OFFSET) "(sp)" "\n"
"sd x19, " STRINGIZE_VALUE_OF(PROBE_CPU_X19_OFFSET) "(sp)" "\n"
"sd x20, " STRINGIZE_VALUE_OF(PROBE_CPU_X20_OFFSET) "(sp)" "\n"
"sd x21, " STRINGIZE_VALUE_OF(PROBE_CPU_X21_OFFSET) "(sp)" "\n"
"sd x22, " STRINGIZE_VALUE_OF(PROBE_CPU_X22_OFFSET) "(sp)" "\n"
"sd x23, " STRINGIZE_VALUE_OF(PROBE_CPU_X23_OFFSET) "(sp)" "\n"
"sd x24, " STRINGIZE_VALUE_OF(PROBE_CPU_X24_OFFSET) "(sp)" "\n"
// x25 -- incoming probe member, handled above
// x26 -- incoming probe member, handled above
// x27 -- incoming probe member, handled above
"sd x28, " STRINGIZE_VALUE_OF(PROBE_CPU_X28_OFFSET) "(sp)" "\n"
"sd x29, " STRINGIZE_VALUE_OF(PROBE_CPU_X29_OFFSET) "(sp)" "\n"
"sd x30, " STRINGIZE_VALUE_OF(PROBE_CPU_X30_OFFSET) "(sp)" "\n"
"sd x31, " STRINGIZE_VALUE_OF(PROBE_CPU_X31_OFFSET) "(sp)" "\n"
"fsd f0, " STRINGIZE_VALUE_OF(PROBE_CPU_F0_OFFSET) "(sp)" "\n"
"fsd f1, " STRINGIZE_VALUE_OF(PROBE_CPU_F1_OFFSET) "(sp)" "\n"
"fsd f2, " STRINGIZE_VALUE_OF(PROBE_CPU_F2_OFFSET) "(sp)" "\n"
"fsd f3, " STRINGIZE_VALUE_OF(PROBE_CPU_F3_OFFSET) "(sp)" "\n"
"fsd f4, " STRINGIZE_VALUE_OF(PROBE_CPU_F4_OFFSET) "(sp)" "\n"
"fsd f5, " STRINGIZE_VALUE_OF(PROBE_CPU_F5_OFFSET) "(sp)" "\n"
"fsd f6, " STRINGIZE_VALUE_OF(PROBE_CPU_F6_OFFSET) "(sp)" "\n"
"fsd f7, " STRINGIZE_VALUE_OF(PROBE_CPU_F7_OFFSET) "(sp)" "\n"
"fsd f8, " STRINGIZE_VALUE_OF(PROBE_CPU_F8_OFFSET) "(sp)" "\n"
"fsd f9, " STRINGIZE_VALUE_OF(PROBE_CPU_F9_OFFSET) "(sp)" "\n"
"fsd f10, " STRINGIZE_VALUE_OF(PROBE_CPU_F10_OFFSET) "(sp)" "\n"
"fsd f11, " STRINGIZE_VALUE_OF(PROBE_CPU_F11_OFFSET) "(sp)" "\n"
"fsd f12, " STRINGIZE_VALUE_OF(PROBE_CPU_F12_OFFSET) "(sp)" "\n"
"fsd f13, " STRINGIZE_VALUE_OF(PROBE_CPU_F13_OFFSET) "(sp)" "\n"
"fsd f14, " STRINGIZE_VALUE_OF(PROBE_CPU_F14_OFFSET) "(sp)" "\n"
"fsd f15, " STRINGIZE_VALUE_OF(PROBE_CPU_F15_OFFSET) "(sp)" "\n"
"fsd f16, " STRINGIZE_VALUE_OF(PROBE_CPU_F16_OFFSET) "(sp)" "\n"
"fsd f17, " STRINGIZE_VALUE_OF(PROBE_CPU_F17_OFFSET) "(sp)" "\n"
"fsd f18, " STRINGIZE_VALUE_OF(PROBE_CPU_F18_OFFSET) "(sp)" "\n"
"fsd f19, " STRINGIZE_VALUE_OF(PROBE_CPU_F19_OFFSET) "(sp)" "\n"
"fsd f20, " STRINGIZE_VALUE_OF(PROBE_CPU_F20_OFFSET) "(sp)" "\n"
"fsd f21, " STRINGIZE_VALUE_OF(PROBE_CPU_F21_OFFSET) "(sp)" "\n"
"fsd f22, " STRINGIZE_VALUE_OF(PROBE_CPU_F22_OFFSET) "(sp)" "\n"
"fsd f23, " STRINGIZE_VALUE_OF(PROBE_CPU_F23_OFFSET) "(sp)" "\n"
"fsd f24, " STRINGIZE_VALUE_OF(PROBE_CPU_F24_OFFSET) "(sp)" "\n"
"fsd f25, " STRINGIZE_VALUE_OF(PROBE_CPU_F25_OFFSET) "(sp)" "\n"
"fsd f26, " STRINGIZE_VALUE_OF(PROBE_CPU_F26_OFFSET) "(sp)" "\n"
"fsd f27, " STRINGIZE_VALUE_OF(PROBE_CPU_F27_OFFSET) "(sp)" "\n"
"fsd f28, " STRINGIZE_VALUE_OF(PROBE_CPU_F28_OFFSET) "(sp)" "\n"
"fsd f29, " STRINGIZE_VALUE_OF(PROBE_CPU_F29_OFFSET) "(sp)" "\n"
"fsd f30, " STRINGIZE_VALUE_OF(PROBE_CPU_F30_OFFSET) "(sp)" "\n"
"fsd f31, " STRINGIZE_VALUE_OF(PROBE_CPU_F31_OFFSET) "(sp)" "\n"
"sd ra, " STRINGIZE_VALUE_OF(PROBE_SAVED_RETURN_PC_OFFSET) "(sp)" "\n"
"sd ra, " STRINGIZE_VALUE_OF(PROBE_CPU_PC_OFFSET) "(sp)" "\n"
"mv x27, sp" "\n"
"mv x10, sp" "\n"
"la ra, " SYMBOL_STRING(executeJSCJITProbe) "\n"
"jalr ra" "\n"
"ld x25, " STRINGIZE_VALUE_OF(PROBE_CPU_X2_OFFSET) "(x27)" "\n"
"addi x26, x27, " STRINGIZE_VALUE_OF(PROBE_ALIGNED_STACK_SIZE + OUT_SIZE) "\n"
"bge x25, x26, " LOCAL_LABEL_STRING(ctiMasmProbeTrampolineProbeStateIsSafe) "\n"
"addi x25, x25, " STRINGIZE_VALUE_OF(-(PROBE_ALIGNED_STACK_SIZE + OUT_SIZE)) "\n"
"andi x25, x25, -16" "\n"
"mv sp, x25" "\n"
"mv x28, x27" "\n"
"mv x29, x25" "\n"
"addi x30, x28, " STRINGIZE_VALUE_OF(PROBE_ALIGNED_STACK_SIZE) "\n"
LOCAL_LABEL_STRING(ctiMasmProbeTrampolineCopyLoop) ":" "\n"
"ld x31, 0(x28)" "\n"
"sd x31, 0(x29)" "\n"
"addi x28, x28, " STRINGIZE_VALUE_OF(GPREG_SIZE) "\n"
"addi x29, x29, " STRINGIZE_VALUE_OF(GPREG_SIZE) "\n"
"blt x28, x30, " LOCAL_LABEL_STRING(ctiMasmProbeTrampolineCopyLoop) "\n"
"mv x27, x25" "\n"
LOCAL_LABEL_STRING(ctiMasmProbeTrampolineProbeStateIsSafe) ":" "\n"
// Call initializeStackFunction, if present
"ld x26, " STRINGIZE_VALUE_OF(PROBE_INITIALIZE_STACK_FUNCTION_OFFSET) "(x27)" "\n"
"beqz x26, " LOCAL_LABEL_STRING(ctiMasmProbeTrampolineRestoreRegisters) "\n"
"mv x10, x27" "\n"
"jalr x26" "\n"
LOCAL_LABEL_STRING(ctiMasmProbeTrampolineRestoreRegisters) ":" "\n"
"mv sp, x27" "\n"
"fld f0, " STRINGIZE_VALUE_OF(PROBE_CPU_F0_OFFSET) "(sp)" "\n"
"fld f1, " STRINGIZE_VALUE_OF(PROBE_CPU_F1_OFFSET) "(sp)" "\n"
"fld f2, " STRINGIZE_VALUE_OF(PROBE_CPU_F2_OFFSET) "(sp)" "\n"
"fld f3, " STRINGIZE_VALUE_OF(PROBE_CPU_F3_OFFSET) "(sp)" "\n"
"fld f4, " STRINGIZE_VALUE_OF(PROBE_CPU_F4_OFFSET) "(sp)" "\n"
"fld f5, " STRINGIZE_VALUE_OF(PROBE_CPU_F5_OFFSET) "(sp)" "\n"
"fld f6, " STRINGIZE_VALUE_OF(PROBE_CPU_F6_OFFSET) "(sp)" "\n"
"fld f7, " STRINGIZE_VALUE_OF(PROBE_CPU_F7_OFFSET) "(sp)" "\n"
"fld f8, " STRINGIZE_VALUE_OF(PROBE_CPU_F8_OFFSET) "(sp)" "\n"
"fld f9, " STRINGIZE_VALUE_OF(PROBE_CPU_F9_OFFSET) "(sp)" "\n"
"fld f10, " STRINGIZE_VALUE_OF(PROBE_CPU_F10_OFFSET) "(sp)" "\n"
"fld f11, " STRINGIZE_VALUE_OF(PROBE_CPU_F11_OFFSET) "(sp)" "\n"
"fld f12, " STRINGIZE_VALUE_OF(PROBE_CPU_F12_OFFSET) "(sp)" "\n"
"fld f13, " STRINGIZE_VALUE_OF(PROBE_CPU_F13_OFFSET) "(sp)" "\n"
"fld f14, " STRINGIZE_VALUE_OF(PROBE_CPU_F14_OFFSET) "(sp)" "\n"
"fld f15, " STRINGIZE_VALUE_OF(PROBE_CPU_F15_OFFSET) "(sp)" "\n"
"fld f16, " STRINGIZE_VALUE_OF(PROBE_CPU_F16_OFFSET) "(sp)" "\n"
"fld f17, " STRINGIZE_VALUE_OF(PROBE_CPU_F17_OFFSET) "(sp)" "\n"
"fld f18, " STRINGIZE_VALUE_OF(PROBE_CPU_F18_OFFSET) "(sp)" "\n"
"fld f19, " STRINGIZE_VALUE_OF(PROBE_CPU_F19_OFFSET) "(sp)" "\n"
"fld f20, " STRINGIZE_VALUE_OF(PROBE_CPU_F20_OFFSET) "(sp)" "\n"
"fld f21, " STRINGIZE_VALUE_OF(PROBE_CPU_F21_OFFSET) "(sp)" "\n"
"fld f22, " STRINGIZE_VALUE_OF(PROBE_CPU_F22_OFFSET) "(sp)" "\n"
"fld f23, " STRINGIZE_VALUE_OF(PROBE_CPU_F23_OFFSET) "(sp)" "\n"
"fld f24, " STRINGIZE_VALUE_OF(PROBE_CPU_F24_OFFSET) "(sp)" "\n"
"fld f25, " STRINGIZE_VALUE_OF(PROBE_CPU_F25_OFFSET) "(sp)" "\n"
"fld f26, " STRINGIZE_VALUE_OF(PROBE_CPU_F26_OFFSET) "(sp)" "\n"
"fld f27, " STRINGIZE_VALUE_OF(PROBE_CPU_F27_OFFSET) "(sp)" "\n"
"fld f28, " STRINGIZE_VALUE_OF(PROBE_CPU_F28_OFFSET) "(sp)" "\n"
"fld f29, " STRINGIZE_VALUE_OF(PROBE_CPU_F29_OFFSET) "(sp)" "\n"
"fld f30, " STRINGIZE_VALUE_OF(PROBE_CPU_F30_OFFSET) "(sp)" "\n"
"fld f31, " STRINGIZE_VALUE_OF(PROBE_CPU_F31_OFFSET) "(sp)" "\n"
// x0 -- zero register, loaded for completeness
"ld x0, " STRINGIZE_VALUE_OF(PROBE_CPU_X0_OFFSET) "(sp)" "\n"
// x1 -- return address register, loaded at the end
// x2 -- stack pointer register, loaded at the end
// x3 -- global pointer, not loaded
// x4 -- thread pointer, not loaded
"ld x5, " STRINGIZE_VALUE_OF(PROBE_CPU_X5_OFFSET) "(sp)" "\n"
"ld x6, " STRINGIZE_VALUE_OF(PROBE_CPU_X6_OFFSET) "(sp)" "\n"
"ld x7, " STRINGIZE_VALUE_OF(PROBE_CPU_X7_OFFSET) "(sp)" "\n"
"ld x8, " STRINGIZE_VALUE_OF(PROBE_CPU_X8_OFFSET) "(sp)" "\n"
"ld x9, " STRINGIZE_VALUE_OF(PROBE_CPU_X9_OFFSET) "(sp)" "\n"
"ld x10, " STRINGIZE_VALUE_OF(PROBE_CPU_X10_OFFSET) "(sp)" "\n"
"ld x11, " STRINGIZE_VALUE_OF(PROBE_CPU_X11_OFFSET) "(sp)" "\n"
"ld x12, " STRINGIZE_VALUE_OF(PROBE_CPU_X12_OFFSET) "(sp)" "\n"
"ld x13, " STRINGIZE_VALUE_OF(PROBE_CPU_X13_OFFSET) "(sp)" "\n"
"ld x14, " STRINGIZE_VALUE_OF(PROBE_CPU_X14_OFFSET) "(sp)" "\n"
"ld x15, " STRINGIZE_VALUE_OF(PROBE_CPU_X15_OFFSET) "(sp)" "\n"
"ld x16, " STRINGIZE_VALUE_OF(PROBE_CPU_X16_OFFSET) "(sp)" "\n"
"ld x17, " STRINGIZE_VALUE_OF(PROBE_CPU_X17_OFFSET) "(sp)" "\n"
"ld x18, " STRINGIZE_VALUE_OF(PROBE_CPU_X18_OFFSET) "(sp)" "\n"
"ld x19, " STRINGIZE_VALUE_OF(PROBE_CPU_X19_OFFSET) "(sp)" "\n"
"ld x20, " STRINGIZE_VALUE_OF(PROBE_CPU_X20_OFFSET) "(sp)" "\n"
"ld x21, " STRINGIZE_VALUE_OF(PROBE_CPU_X21_OFFSET) "(sp)" "\n"
"ld x22, " STRINGIZE_VALUE_OF(PROBE_CPU_X22_OFFSET) "(sp)" "\n"
"ld x23, " STRINGIZE_VALUE_OF(PROBE_CPU_X23_OFFSET) "(sp)" "\n"
"ld x24, " STRINGIZE_VALUE_OF(PROBE_CPU_X24_OFFSET) "(sp)" "\n"
"ld x28, " STRINGIZE_VALUE_OF(PROBE_CPU_X28_OFFSET) "(sp)" "\n"
"ld x29, " STRINGIZE_VALUE_OF(PROBE_CPU_X29_OFFSET) "(sp)" "\n"
"ld x30, " STRINGIZE_VALUE_OF(PROBE_CPU_X30_OFFSET) "(sp)" "\n"
"ld x31, " STRINGIZE_VALUE_OF(PROBE_CPU_X31_OFFSET) "(sp)" "\n"
"ld x25, " STRINGIZE_VALUE_OF(PROBE_CPU_X2_OFFSET) "(sp)" "\n"
"ld x26, " STRINGIZE_VALUE_OF(PROBE_SAVED_RETURN_PC_OFFSET) "(sp)" "\n"
"ld x27, " STRINGIZE_VALUE_OF(PROBE_CPU_PC_OFFSET) "(sp)" "\n"
"bne x26, x27, " LOCAL_LABEL_STRING(ctiMasmProbeTrampolineEnd) "\n"
"addi x25, x25, " STRINGIZE_VALUE_OF(-RA_RESTORATION_SIZE) "\n"
"ld x27, " STRINGIZE_VALUE_OF(PROBE_CPU_X1_OFFSET) "(sp)" "\n"
"sd x27, " STRINGIZE_VALUE_OF(RA_RESTORATION_RA_OFFSET) "(x25)" "\n"
LOCAL_LABEL_STRING(ctiMasmProbeTrampolineEnd) ":" "\n"
"addi x25, x25, " STRINGIZE_VALUE_OF(-OUT_SIZE) "\n"
"ld x27, " STRINGIZE_VALUE_OF(PROBE_CPU_X25_OFFSET) "(sp)" "\n"
"sd x27, " STRINGIZE_VALUE_OF(OUT_X25_OFFSET) "(x25)" "\n"
"ld x27, " STRINGIZE_VALUE_OF(PROBE_CPU_X26_OFFSET) "(sp)" "\n"
"sd x27, " STRINGIZE_VALUE_OF(OUT_X26_OFFSET) "(x25)" "\n"
"ld x27, " STRINGIZE_VALUE_OF(PROBE_CPU_X27_OFFSET) "(sp)" "\n"
"sd x27, " STRINGIZE_VALUE_OF(OUT_X27_OFFSET) "(x25)" "\n"
"ld x27, " STRINGIZE_VALUE_OF(PROBE_CPU_X8_OFFSET) "(sp)" "\n"
"sd x27, " STRINGIZE_VALUE_OF(OUT_X8_OFFSET) "(x25)" "\n"
"ld x27, " STRINGIZE_VALUE_OF(PROBE_CPU_PC_OFFSET) "(sp)" "\n"
"sd x27, " STRINGIZE_VALUE_OF(OUT_X1_OFFSET) "(x25)" "\n"
"mv sp, x25" "\n"
"ld x25, " STRINGIZE_VALUE_OF(OUT_X25_OFFSET) "(sp)" "\n"
"ld x26, " STRINGIZE_VALUE_OF(OUT_X26_OFFSET) "(sp)" "\n"
"ld x27, " STRINGIZE_VALUE_OF(OUT_X27_OFFSET) "(sp)" "\n"
"ld ra, " STRINGIZE_VALUE_OF(OUT_X1_OFFSET) "(sp)" "\n"
"addi sp, sp, " STRINGIZE_VALUE_OF(OUT_SIZE) "\n"
"ret" "\n");
void MacroAssembler::probe(Probe::Function function, void* arg, SavedFPWidth)
{
sub64(TrustedImm32(sizeof(IncomingProbeRecord)), sp);
store64(ra, Address(sp, offsetof(IncomingProbeRecord, x1)));
store64(x25, Address(sp, offsetof(IncomingProbeRecord, x25)));
store64(x26, Address(sp, offsetof(IncomingProbeRecord, x26)));
store64(x27, Address(sp, offsetof(IncomingProbeRecord, x27)));
move(TrustedImmPtr(tagCFunction<OperationPtrTag>(ctiMasmProbeTrampoline)), x27);
move(TrustedImmPtr(reinterpret_cast<void*>(function)), x25);
move(TrustedImmPtr(arg), x26);
call(x27, OperationPtrTag);
load64(Address(sp, offsetof(RARestorationRecord, ra)), ra);
add64(TrustedImm32(sizeof(RARestorationRecord)), sp);
}
} // namespace JSC
#endif // ENABLE(ASSEMBLER) && CPU(RISCV64)
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