| /* |
| * Copyright (C) 2013 Apple Inc. All rights reserved. |
| * |
| * 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. |
| */ |
| |
| #ifndef JITStubsX86Common_h |
| #define JITStubsX86Common_h |
| |
| #include "MacroAssembler.h" |
| |
| #if !CPU(X86) && !CPU(X86_64) |
| #error "JITStubsX86Common.h should only be #included if CPU(X86) || CPU(X86_64)" |
| #endif |
| |
| namespace JSC { |
| |
| #if COMPILER(GCC) |
| |
| #if USE(MASM_PROBE) |
| // The following are offsets for MacroAssembler::ProbeContext fields accessed |
| // by the ctiMasmProbeTrampoline stub. |
| |
| #if CPU(X86) |
| #define PTR_SIZE 4 |
| #else // CPU(X86_64) |
| #define PTR_SIZE 8 |
| #endif |
| |
| #define PROBE_PROBE_FUNCTION_OFFSET (0 * PTR_SIZE) |
| #define PROBE_ARG1_OFFSET (1 * PTR_SIZE) |
| #define PROBE_ARG2_OFFSET (2 * PTR_SIZE) |
| |
| #define PROBE_CPU_EAX_OFFSET (4 * PTR_SIZE) |
| #define PROBE_CPU_EBX_OFFSET (5 * PTR_SIZE) |
| #define PROBE_CPU_ECX_OFFSET (6 * PTR_SIZE) |
| #define PROBE_CPU_EDX_OFFSET (7 * PTR_SIZE) |
| #define PROBE_CPU_ESI_OFFSET (8 * PTR_SIZE) |
| #define PROBE_CPU_EDI_OFFSET (9 * PTR_SIZE) |
| #define PROBE_CPU_EBP_OFFSET (10 * PTR_SIZE) |
| #define PROBE_CPU_ESP_OFFSET (11 * PTR_SIZE) |
| |
| #if CPU(X86) |
| #define PROBE_FIRST_SPECIAL_OFFSET (12 * PTR_SIZE) |
| #else // CPU(X86_64) |
| #define PROBE_CPU_R8_OFFSET (12 * PTR_SIZE) |
| #define PROBE_CPU_R9_OFFSET (13 * PTR_SIZE) |
| #define PROBE_CPU_R10_OFFSET (14 * PTR_SIZE) |
| #define PROBE_CPU_R11_OFFSET (15 * PTR_SIZE) |
| #define PROBE_CPU_R12_OFFSET (16 * PTR_SIZE) |
| #define PROBE_CPU_R13_OFFSET (17 * PTR_SIZE) |
| #define PROBE_CPU_R14_OFFSET (18 * PTR_SIZE) |
| #define PROBE_CPU_R15_OFFSET (19 * PTR_SIZE) |
| #define PROBE_FIRST_SPECIAL_OFFSET (20 * PTR_SIZE) |
| #endif // CPU(X86_64) |
| |
| #define PROBE_CPU_EIP_OFFSET (PROBE_FIRST_SPECIAL_OFFSET + (0 * PTR_SIZE)) |
| #define PROBE_CPU_EFLAGS_OFFSET (PROBE_FIRST_SPECIAL_OFFSET + (1 * PTR_SIZE)) |
| |
| #if CPU(X86) |
| #define PROBE_FIRST_XMM_OFFSET (PROBE_FIRST_SPECIAL_OFFSET + (4 * PTR_SIZE)) // After padding. |
| #else // CPU(X86_64) |
| #define PROBE_FIRST_XMM_OFFSET (PROBE_FIRST_SPECIAL_OFFSET + (2 * PTR_SIZE)) // After padding. |
| #endif // CPU(X86_64) |
| |
| #define XMM_SIZE 16 |
| #define PROBE_CPU_XMM0_OFFSET (PROBE_FIRST_XMM_OFFSET + (0 * XMM_SIZE)) |
| #define PROBE_CPU_XMM1_OFFSET (PROBE_FIRST_XMM_OFFSET + (1 * XMM_SIZE)) |
| #define PROBE_CPU_XMM2_OFFSET (PROBE_FIRST_XMM_OFFSET + (2 * XMM_SIZE)) |
| #define PROBE_CPU_XMM3_OFFSET (PROBE_FIRST_XMM_OFFSET + (3 * XMM_SIZE)) |
| #define PROBE_CPU_XMM4_OFFSET (PROBE_FIRST_XMM_OFFSET + (4 * XMM_SIZE)) |
| #define PROBE_CPU_XMM5_OFFSET (PROBE_FIRST_XMM_OFFSET + (5 * XMM_SIZE)) |
| #define PROBE_CPU_XMM6_OFFSET (PROBE_FIRST_XMM_OFFSET + (6 * XMM_SIZE)) |
| #define PROBE_CPU_XMM7_OFFSET (PROBE_FIRST_XMM_OFFSET + (7 * XMM_SIZE)) |
| |
| #define PROBE_SIZE (PROBE_CPU_XMM7_OFFSET + XMM_SIZE) |
| |
| // These ASSERTs remind you that if you change the layout of ProbeContext, |
| // you need to change ctiMasmProbeTrampoline offsets above to match. |
| #define PROBE_OFFSETOF(x) offsetof(struct MacroAssembler::ProbeContext, x) |
| COMPILE_ASSERT(PROBE_OFFSETOF(probeFunction) == PROBE_PROBE_FUNCTION_OFFSET, ProbeContext_probeFunction_offset_matches_ctiMasmProbeTrampoline); |
| COMPILE_ASSERT(PROBE_OFFSETOF(arg1) == PROBE_ARG1_OFFSET, ProbeContext_arg1_offset_matches_ctiMasmProbeTrampoline); |
| COMPILE_ASSERT(PROBE_OFFSETOF(arg2) == PROBE_ARG2_OFFSET, ProbeContext_arg2_offset_matches_ctiMasmProbeTrampoline); |
| |
| COMPILE_ASSERT(PROBE_OFFSETOF(cpu.eax) == PROBE_CPU_EAX_OFFSET, ProbeContext_cpu_eax_offset_matches_ctiMasmProbeTrampoline); |
| COMPILE_ASSERT(PROBE_OFFSETOF(cpu.ecx) == PROBE_CPU_ECX_OFFSET, ProbeContext_cpu_ecx_offset_matches_ctiMasmProbeTrampoline); |
| COMPILE_ASSERT(PROBE_OFFSETOF(cpu.edx) == PROBE_CPU_EDX_OFFSET, ProbeContext_cpu_edx_offset_matches_ctiMasmProbeTrampoline); |
| COMPILE_ASSERT(PROBE_OFFSETOF(cpu.ebx) == PROBE_CPU_EBX_OFFSET, ProbeContext_cpu_ebx_offset_matches_ctiMasmProbeTrampoline); |
| COMPILE_ASSERT(PROBE_OFFSETOF(cpu.esp) == PROBE_CPU_ESP_OFFSET, ProbeContext_cpu_esp_offset_matches_ctiMasmProbeTrampoline); |
| COMPILE_ASSERT(PROBE_OFFSETOF(cpu.ebp) == PROBE_CPU_EBP_OFFSET, ProbeContext_cpu_ebp_offset_matches_ctiMasmProbeTrampoline); |
| COMPILE_ASSERT(PROBE_OFFSETOF(cpu.esi) == PROBE_CPU_ESI_OFFSET, ProbeContext_cpu_esi_offset_matches_ctiMasmProbeTrampoline); |
| COMPILE_ASSERT(PROBE_OFFSETOF(cpu.edi) == PROBE_CPU_EDI_OFFSET, ProbeContext_cpu_edi_offset_matches_ctiMasmProbeTrampoline); |
| COMPILE_ASSERT(PROBE_OFFSETOF(cpu.eip) == PROBE_CPU_EIP_OFFSET, ProbeContext_cpu_eip_offset_matches_ctiMasmProbeTrampoline); |
| COMPILE_ASSERT(PROBE_OFFSETOF(cpu.eflags) == PROBE_CPU_EFLAGS_OFFSET, ProbeContext_cpu_eflags_offset_matches_ctiMasmProbeTrampoline); |
| |
| #if CPU(X86_64) |
| COMPILE_ASSERT(PROBE_OFFSETOF(cpu.r8) == PROBE_CPU_R8_OFFSET, ProbeContext_cpu_r8_offset_matches_ctiMasmProbeTrampoline); |
| COMPILE_ASSERT(PROBE_OFFSETOF(cpu.r9) == PROBE_CPU_R9_OFFSET, ProbeContext_cpu_r9_offset_matches_ctiMasmProbeTrampoline); |
| COMPILE_ASSERT(PROBE_OFFSETOF(cpu.r10) == PROBE_CPU_R10_OFFSET, ProbeContext_cpu_r10_offset_matches_ctiMasmProbeTrampoline); |
| COMPILE_ASSERT(PROBE_OFFSETOF(cpu.r11) == PROBE_CPU_R11_OFFSET, ProbeContext_cpu_r11_offset_matches_ctiMasmProbeTrampoline); |
| COMPILE_ASSERT(PROBE_OFFSETOF(cpu.r12) == PROBE_CPU_R12_OFFSET, ProbeContext_cpu_r12_offset_matches_ctiMasmProbeTrampoline); |
| COMPILE_ASSERT(PROBE_OFFSETOF(cpu.r13) == PROBE_CPU_R13_OFFSET, ProbeContext_cpu_r13_offset_matches_ctiMasmProbeTrampoline); |
| COMPILE_ASSERT(PROBE_OFFSETOF(cpu.r14) == PROBE_CPU_R14_OFFSET, ProbeContext_cpu_r14_offset_matches_ctiMasmProbeTrampoline); |
| COMPILE_ASSERT(PROBE_OFFSETOF(cpu.r15) == PROBE_CPU_R15_OFFSET, ProbeContext_cpu_r15_offset_matches_ctiMasmProbeTrampoline); |
| #endif // CPU(X86_64) |
| |
| COMPILE_ASSERT(PROBE_OFFSETOF(cpu.xmm0) == PROBE_CPU_XMM0_OFFSET, ProbeContext_cpu_xmm0_offset_matches_ctiMasmProbeTrampoline); |
| COMPILE_ASSERT(PROBE_OFFSETOF(cpu.xmm1) == PROBE_CPU_XMM1_OFFSET, ProbeContext_cpu_xmm1_offset_matches_ctiMasmProbeTrampoline); |
| COMPILE_ASSERT(PROBE_OFFSETOF(cpu.xmm2) == PROBE_CPU_XMM2_OFFSET, ProbeContext_cpu_xmm2_offset_matches_ctiMasmProbeTrampoline); |
| COMPILE_ASSERT(PROBE_OFFSETOF(cpu.xmm3) == PROBE_CPU_XMM3_OFFSET, ProbeContext_cpu_xmm3_offset_matches_ctiMasmProbeTrampoline); |
| COMPILE_ASSERT(PROBE_OFFSETOF(cpu.xmm4) == PROBE_CPU_XMM4_OFFSET, ProbeContext_cpu_xmm4_offset_matches_ctiMasmProbeTrampoline); |
| COMPILE_ASSERT(PROBE_OFFSETOF(cpu.xmm5) == PROBE_CPU_XMM5_OFFSET, ProbeContext_cpu_xmm5_offset_matches_ctiMasmProbeTrampoline); |
| COMPILE_ASSERT(PROBE_OFFSETOF(cpu.xmm6) == PROBE_CPU_XMM6_OFFSET, ProbeContext_cpu_xmm6_offset_matches_ctiMasmProbeTrampoline); |
| COMPILE_ASSERT(PROBE_OFFSETOF(cpu.xmm7) == PROBE_CPU_XMM7_OFFSET, ProbeContext_cpu_xmm7_offset_matches_ctiMasmProbeTrampoline); |
| |
| COMPILE_ASSERT(sizeof(MacroAssembler::ProbeContext) == PROBE_SIZE, ProbeContext_size_matches_ctiMasmProbeTrampoline); |
| |
| // Also double check that the xmm registers are 16 byte (128-bit) aligned as |
| // required by the movdqa instruction used in the trampoline. |
| COMPILE_ASSERT(!(PROBE_OFFSETOF(cpu.xmm0) % 16), ProbeContext_xmm0_offset_not_aligned_properly); |
| #undef PROBE_OFFSETOF |
| |
| #endif // USE(MASM_PROBE) |
| |
| #endif // COMPILER(GCC) |
| |
| } // namespace JSC |
| |
| #endif // JITStubsX86Common |
