Basic support for ppc32

This commit applies a set of patches from: nodejs#30323 (comment)
barracuda156 · Nov 5, 2023 · 3a4f6d9 · 3a4f6d9
1 parent a3d2837
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diff --git a/deps/v8/AUTHORS b/deps/v8/AUTHORS
@@ -191,6 +191,7 @@ Vladimir Krivosheev <[email protected]>
 Vladimir Shutoff <[email protected]>
 Wenlu Wang <[email protected]>
 Wiktor Garbacz <[email protected]>
+Wouter Vermeiren <[email protected]>
 Xiaoyin Liu <[email protected]>
 Yannic Bonenberger <[email protected]>
 Yong Wang <[email protected]>

diff --git a/deps/v8/BUILD.gn b/deps/v8/BUILD.gn
@@ -606,8 +606,9 @@ config("toolchain") {
     }
   }
   if (v8_current_cpu == "ppc" || v8_current_cpu == "ppc64") {
-    defines += [ "V8_TARGET_ARCH_PPC" ]
-    if (v8_current_cpu == "ppc64") {
+    if (v8_current_cpu == "ppc") {
+      defines += [ "V8_TARGET_ARCH_PPC" ]
+    } else if (v8_current_cpu == "ppc64") {
       defines += [ "V8_TARGET_ARCH_PPC64" ]
     }
     if (host_byteorder == "little") {
@@ -1605,11 +1606,16 @@ v8_source_set("v8_initializers") {
       ### gcmole(arch:mips64el) ###
       "src/builtins/mips64/builtins-mips64.cc",
     ]
-  } else if (v8_current_cpu == "ppc" || v8_current_cpu == "ppc64") {
+  } else if (v8_current_cpu == "ppc") {
     sources += [
       ### gcmole(arch:ppc) ###
       "src/builtins/ppc/builtins-ppc.cc",
     ]
+  } else if (v8_current_cpu == "ppc64") {
+    sources += [
+      ### gcmole(arch:ppc64) ###
+      "src/builtins/ppc/builtins-ppc.cc",
+    ]
   } else if (v8_current_cpu == "s390" || v8_current_cpu == "s390x") {
     sources += [
       ### gcmole(arch:s390) ###
@@ -3190,7 +3196,7 @@ v8_source_set("v8_base_without_compiler") {
       "src/regexp/mips64/regexp-macro-assembler-mips64.h",
       "src/wasm/baseline/mips64/liftoff-assembler-mips64.h",
     ]
-  } else if (v8_current_cpu == "ppc" || v8_current_cpu == "ppc64") {
+  } else if (v8_current_cpu == "ppc") {
     sources += [  ### gcmole(arch:ppc) ###
       "src/codegen/ppc/assembler-ppc-inl.h",
       "src/codegen/ppc/assembler-ppc.cc",
@@ -3206,9 +3212,42 @@ v8_source_set("v8_base_without_compiler") {
       "src/compiler/backend/ppc/instruction-codes-ppc.h",
       "src/compiler/backend/ppc/instruction-scheduler-ppc.cc",
       "src/compiler/backend/ppc/instruction-selector-ppc.cc",
+      "src/compiler/backend/ppc/unwinding-info-writer-ppc.cc",
+      "src/compiler/backend/ppc/unwinding-info-writer-ppc.h",
+      "src/debug/ppc/debug-ppc.cc",
+      "src/deoptimizer/ppc/deoptimizer-ppc.cc",
+      "src/diagnostics/ppc/disasm-ppc.cc",
+      "src/diagnostics/ppc/eh-frame-ppc.cc",
+      "src/execution/ppc/frame-constants-ppc.cc",
+      "src/execution/ppc/frame-constants-ppc.h",
+      "src/execution/ppc/simulator-ppc.cc",
+      "src/execution/ppc/simulator-ppc.h",
+      "src/regexp/ppc/regexp-macro-assembler-ppc.cc",
+      "src/regexp/ppc/regexp-macro-assembler-ppc.h",
+      "src/wasm/baseline/ppc/liftoff-assembler-ppc.h",
+    ]
+  } else if (v8_current_cpu == "ppc64") {
+    sources += [  ### gcmole(arch:ppc64) ###
+      "src/codegen/ppc/assembler-ppc-inl.h",
+      "src/codegen/ppc/assembler-ppc.cc",
+      "src/codegen/ppc/assembler-ppc.h",
+      "src/codegen/ppc/constants-ppc.cc",
+      "src/codegen/ppc/constants-ppc.h",
+      "src/codegen/ppc/cpu-ppc.cc",
+      "src/codegen/ppc/interface-descriptors-ppc.cc",
+      "src/codegen/ppc/macro-assembler-ppc.cc",
+      "src/codegen/ppc/macro-assembler-ppc.h",
+      "src/codegen/ppc/register-ppc.h",
+      "src/compiler/backend/ppc/code-generator-ppc.cc",
+      "src/compiler/backend/ppc/instruction-codes-ppc.h",
+      "src/compiler/backend/ppc/instruction-scheduler-ppc.cc",
+      "src/compiler/backend/ppc/instruction-selector-ppc.cc",
+      "src/compiler/backend/ppc/unwinding-info-writer-ppc.cc",
+      "src/compiler/backend/ppc/unwinding-info-writer-ppc.h",
       "src/debug/ppc/debug-ppc.cc",
       "src/deoptimizer/ppc/deoptimizer-ppc.cc",
       "src/diagnostics/ppc/disasm-ppc.cc",
+      "src/diagnostics/ppc/eh-frame-ppc.cc",
       "src/execution/ppc/frame-constants-ppc.cc",
       "src/execution/ppc/frame-constants-ppc.h",
       "src/execution/ppc/simulator-ppc.cc",

diff --git a/deps/v8/gni/snapshot_toolchain.gni b/deps/v8/gni/snapshot_toolchain.gni
@@ -89,6 +89,10 @@ if (v8_snapshot_toolchain == "") {
       }
     } else if (v8_current_cpu == "arm" || v8_current_cpu == "mipsel") {
       _cpus = "x86_v8_${v8_current_cpu}"
+    } else if (v8_current_cpu == "ppc") {
+      # reset clang to use gcc toolchain
+      _clang = ""
+      _cpus = "${v8_current_cpu}"
     } else {
       # This branch should not be reached; leave _cpus blank so the assert
       # below will fail.

diff --git a/deps/v8/src/base/build_config.h b/deps/v8/src/base/build_config.h
@@ -33,13 +33,12 @@
 #elif defined(__MIPSEB__) || defined(__MIPSEL__)
 #define V8_HOST_ARCH_MIPS 1
 #define V8_HOST_ARCH_32_BIT 1
+#elif defined(__PPC64__) || defined(_ARCH_PPC64)
+#define V8_HOST_ARCH_PPC64 1
+#define V8_HOST_ARCH_64_BIT 1
 #elif defined(__PPC__) || defined(_ARCH_PPC)
 #define V8_HOST_ARCH_PPC 1
-#if defined(__PPC64__) || defined(_ARCH_PPC64)
-#define V8_HOST_ARCH_64_BIT 1
-#else
 #define V8_HOST_ARCH_32_BIT 1
-#endif
 #elif defined(__s390__) || defined(__s390x__)
 #define V8_HOST_ARCH_S390 1
 #if defined(__s390x__)
@@ -78,7 +77,7 @@
 // environment as presented by the compiler.
 #if !V8_TARGET_ARCH_X64 && !V8_TARGET_ARCH_IA32 && !V8_TARGET_ARCH_ARM &&      \
     !V8_TARGET_ARCH_ARM64 && !V8_TARGET_ARCH_MIPS && !V8_TARGET_ARCH_MIPS64 && \
-    !V8_TARGET_ARCH_PPC && !V8_TARGET_ARCH_S390
+    !V8_TARGET_ARCH_PPC && !V8_TARGET_ARCH_PPC64 && !V8_TARGET_ARCH_S390
 #if defined(_M_X64) || defined(__x86_64__)
 #define V8_TARGET_ARCH_X64 1
 #elif defined(_M_IX86) || defined(__i386__)
@@ -91,6 +90,8 @@
 #define V8_TARGET_ARCH_MIPS64 1
 #elif defined(__MIPSEB__) || defined(__MIPSEL__)
 #define V8_TARGET_ARCH_MIPS 1
+#elif defined(_ARCH_PPC64)
+#define V8_TARGET_ARCH_PPC64 1
 #elif defined(_ARCH_PPC)
 #define V8_TARGET_ARCH_PPC 1
 #else
@@ -118,11 +119,9 @@
 #elif V8_TARGET_ARCH_MIPS64
 #define V8_TARGET_ARCH_64_BIT 1
 #elif V8_TARGET_ARCH_PPC
-#if V8_TARGET_ARCH_PPC64
-#define V8_TARGET_ARCH_64_BIT 1
-#else
 #define V8_TARGET_ARCH_32_BIT 1
-#endif
+#elif V8_TARGET_ARCH_PPC64
+#define V8_TARGET_ARCH_64_BIT 1
 #elif V8_TARGET_ARCH_S390
 #if V8_TARGET_ARCH_S390X
 #define V8_TARGET_ARCH_64_BIT 1

diff --git a/deps/v8/src/base/cpu.cc b/deps/v8/src/base/cpu.cc
@@ -16,7 +16,7 @@
 #if V8_OS_QNX
 #include <sys/syspage.h>  // cpuinfo
 #endif
-#if V8_OS_LINUX && V8_HOST_ARCH_PPC
+#if (V8_OS_LINUX && (V8_HOST_ARCH_PPC || V8_HOST_ARCH_PPC64))
 #include <elf.h>
 #endif
 #if V8_OS_AIX
@@ -607,7 +607,7 @@ CPU::CPU()
 #elif V8_HOST_ARCH_ARM64
 // Implementer, variant and part are currently unused under ARM64.
 
-#elif V8_HOST_ARCH_PPC
+#elif V8_HOST_ARCH_PPC || V8_HOST_ARCH_PPC64
 
 #ifndef USE_SIMULATOR
 #if V8_OS_LINUX
@@ -659,6 +659,8 @@ CPU::CPU()
       part_ = PPC_G5;
     } else if (strcmp(auxv_cpu_type, "ppc7450") == 0) {
       part_ = PPC_G4;
+    } else if (strcmp(auxv_cpu_type, "ppc440") == 0) {
+      part_ = PPC_G4;
     } else if (strcmp(auxv_cpu_type, "pa6t") == 0) {
       part_ = PPC_PA6T;
     }
@@ -687,7 +689,7 @@ CPU::CPU()
   }
 #endif  // V8_OS_AIX
 #endif  // !USE_SIMULATOR
-#endif  // V8_HOST_ARCH_PPC
+#endif  // V8_HOST_ARCH_PPC || V8_HOST_ARCH_PPC64
 }
 
 }  // namespace base

diff --git a/deps/v8/src/base/debug/stack_trace_posix.cc b/deps/v8/src/base/debug/stack_trace_posix.cc
@@ -25,7 +25,7 @@
 #include <string>
 #include <vector>
 
-#if V8_LIBC_GLIBC || V8_LIBC_BSD || V8_LIBC_UCLIBC || V8_OS_SOLARIS
+#if V8_LIBC_GLIBC || V8_LIBC_BSD || ( V8_LIBC_UCLIBC && __UCLIBC_HAS_BACKTRACE__ ) || V8_OS_SOLARIS
 #define HAVE_EXECINFO_H 1
 #endif
 

diff --git a/deps/v8/src/base/platform/platform-posix.cc b/deps/v8/src/base/platform/platform-posix.cc
@@ -419,7 +419,7 @@ void OS::DebugBreak() {
   asm("break");
 #elif V8_HOST_ARCH_MIPS64
   asm("break");
-#elif V8_HOST_ARCH_PPC
+#elif V8_HOST_ARCH_PPC || V8_HOST_ARCH_PPC64
   asm("twge 2,2");
 #elif V8_HOST_ARCH_IA32
   asm("int $3");

diff --git a/deps/v8/src/builtins/ppc/builtins-ppc.cc b/deps/v8/src/builtins/ppc/builtins-ppc.cc
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#if V8_TARGET_ARCH_PPC
+#if V8_TARGET_ARCH_PPC || V8_TARGET_ARCH_PPC64
 
 #include "src/api/api-arguments.h"
 #include "src/codegen/code-factory.h"
@@ -2807,7 +2807,7 @@ void Builtins::Generate_CEntry(MacroAssembler* masm, int result_size,
 }
 
 void Builtins::Generate_DoubleToI(MacroAssembler* masm) {
-  Label out_of_range, only_low, negate, done, fastpath_done;
+  Label out_of_range, only_low, negate, done, fastpath_done, conv_inv, conv_ok;
   Register result_reg = r3;
 
   HardAbortScope hard_abort(masm);  // Avoid calls to Abort.
@@ -2818,7 +2818,11 @@ void Builtins::Generate_DoubleToI(MacroAssembler* masm) {
   Register scratch_high =
       GetRegisterThatIsNotOneOf(result_reg, scratch, scratch_low);
   DoubleRegister double_scratch = kScratchDoubleReg;
-
+#if !V8_TARGET_ARCH_PPC64
+  CRegister cr = cr7;
+  int crbit = v8::internal::Assembler::encode_crbit(
+      cr, static_cast<CRBit>(VXCVI % CRWIDTH));
+#endif
   __ Push(result_reg, scratch);
   // Account for saved regs.
   int argument_offset = 2 * kPointerSize;
@@ -2827,17 +2831,20 @@ void Builtins::Generate_DoubleToI(MacroAssembler* masm) {
   __ lfd(double_scratch, MemOperand(sp, argument_offset));
 
   // Do fast-path convert from double to int.
-  __ ConvertDoubleToInt64(double_scratch,
 #if !V8_TARGET_ARCH_PPC64
-                          scratch,
-#endif
-                          result_reg, d0);
-
-// Test for overflow
-#if V8_TARGET_ARCH_PPC64
-  __ TestIfInt32(result_reg, r0);
+  __ mtfsb0(VXCVI);
+  __ ConvertDoubleToInt32NoPPC64(double_scratch, result_reg, scratch);
+  __ mcrfs(cr, VXCVI);
+  __ bc(__ branch_offset(&conv_inv), BT, crbit);
+  __ addi(scratch, result_reg, Operand(0));
+  __ b(&conv_ok);
+  __ bind(&conv_inv);
+  __ addi(scratch, result_reg, Operand(1));
+  __ bind(&conv_ok);
+  __ cmp(scratch, result_reg, cr);
 #else
-  __ TestIfInt32(scratch, result_reg, r0);
+  __ ConvertDoubleToInt64(double_scratch, result_reg, d0);
+  __ TestIfInt32(result_reg, r0);
 #endif
   __ beq(&fastpath_done);
 
@@ -3337,4 +3344,4 @@ void Builtins::Generate_DirectCEntry(MacroAssembler* masm) {
 }  // namespace internal
 }  // namespace v8
 
-#endif  // V8_TARGET_ARCH_PPC
+#endif  // V8_TARGET_ARCH_PPC64 || V8_TARGET_ARCH_PPC64
diff --git a/deps/v8/src/codegen/assembler-arch.h b/deps/v8/src/codegen/assembler-arch.h
@@ -15,7 +15,7 @@
 #include "src/codegen/arm64/assembler-arm64.h"
 #elif V8_TARGET_ARCH_ARM
 #include "src/codegen/arm/assembler-arm.h"
-#elif V8_TARGET_ARCH_PPC
+#elif V8_TARGET_ARCH_PPC || V8_TARGET_ARCH_PPC64
 #include "src/codegen/ppc/assembler-ppc.h"
 #elif V8_TARGET_ARCH_MIPS
 #include "src/codegen/mips/assembler-mips.h"

diff --git a/deps/v8/src/codegen/assembler-inl.h b/deps/v8/src/codegen/assembler-inl.h
@@ -15,7 +15,7 @@
 #include "src/codegen/arm64/assembler-arm64-inl.h"
 #elif V8_TARGET_ARCH_ARM
 #include "src/codegen/arm/assembler-arm-inl.h"
-#elif V8_TARGET_ARCH_PPC
+#elif V8_TARGET_ARCH_PPC || V8_TARGET_ARCH_PPC64
 #include "src/codegen/ppc/assembler-ppc-inl.h"
 #elif V8_TARGET_ARCH_MIPS
 #include "src/codegen/mips/assembler-mips-inl.h"

diff --git a/deps/v8/src/codegen/constant-pool.cc b/deps/v8/src/codegen/constant-pool.cc
@@ -9,7 +9,7 @@
 namespace v8 {
 namespace internal {
 
-#if defined(V8_TARGET_ARCH_PPC)
+#if defined(V8_TARGET_ARCH_PPC) || defined(V8_TARGET_ARCH_PPC64)
 
 ConstantPoolBuilder::ConstantPoolBuilder(int ptr_reach_bits,
                                          int double_reach_bits) {
@@ -209,7 +209,7 @@ int ConstantPoolBuilder::Emit(Assembler* assm) {
   return !empty ? (assm->pc_offset() - emitted_label_.pos()) : 0;
 }
 
-#endif  // defined(V8_TARGET_ARCH_PPC)
+#endif  // defined(V8_TARGET_ARCH_PPC) || defined(V8_TARGET_ARCH_PPC64)
 
 #if defined(V8_TARGET_ARCH_ARM64)
 

diff --git a/deps/v8/src/codegen/constant-pool.h b/deps/v8/src/codegen/constant-pool.h
@@ -81,7 +81,7 @@ class ConstantPoolEntry {
   enum { SHARING_PROHIBITED = -2, SHARING_ALLOWED = -1 };
 };
 
-#if defined(V8_TARGET_ARCH_PPC)
+#if defined(V8_TARGET_ARCH_PPC) || defined(V8_TARGET_ARCH_PPC64)
 
 // -----------------------------------------------------------------------------
 // Embedded constant pool support
@@ -162,7 +162,7 @@ class ConstantPoolBuilder {
   PerTypeEntryInfo info_[ConstantPoolEntry::NUMBER_OF_TYPES];
 };
 
-#endif  // defined(V8_TARGET_ARCH_PPC)
+#endif  // defined(V8_TARGET_ARCH_PPC) || defined(V8_TARGET_ARCH_PPC64)
 
 #if defined(V8_TARGET_ARCH_ARM64)
 

diff --git a/deps/v8/src/codegen/constants-arch.h b/deps/v8/src/codegen/constants-arch.h
@@ -15,7 +15,7 @@
 #include "src/codegen/mips/constants-mips.h"  // NOLINT
 #elif V8_TARGET_ARCH_MIPS64
 #include "src/codegen/mips64/constants-mips64.h"  // NOLINT
-#elif V8_TARGET_ARCH_PPC
+#elif V8_TARGET_ARCH_PPC || V8_TARGET_ARCH_PPC64
 #include "src/codegen/ppc/constants-ppc.h"  // NOLINT
 #elif V8_TARGET_ARCH_S390
 #include "src/codegen/s390/constants-s390.h"  // NOLINT

diff --git a/deps/v8/src/codegen/external-reference.cc b/deps/v8/src/codegen/external-reference.cc
@@ -469,7 +469,7 @@ ExternalReference ExternalReference::invoke_accessor_getter_callback() {
 #define re_stack_check_func RegExpMacroAssemblerARM64::CheckStackGuardState
 #elif V8_TARGET_ARCH_ARM
 #define re_stack_check_func RegExpMacroAssemblerARM::CheckStackGuardState
-#elif V8_TARGET_ARCH_PPC
+#elif V8_TARGET_ARCH_PPC || V8_TARGET_ARCH_PPC64
 #define re_stack_check_func RegExpMacroAssemblerPPC::CheckStackGuardState
 #elif V8_TARGET_ARCH_MIPS
 #define re_stack_check_func RegExpMacroAssemblerMIPS::CheckStackGuardState

diff --git a/deps/v8/src/codegen/macro-assembler.h b/deps/v8/src/codegen/macro-assembler.h
@@ -40,7 +40,7 @@ enum AllocationFlags {
 #elif V8_TARGET_ARCH_ARM
 #include "src/codegen/arm/constants-arm.h"
 #include "src/codegen/arm/macro-assembler-arm.h"
-#elif V8_TARGET_ARCH_PPC
+#elif V8_TARGET_ARCH_PPC || V8_TARGET_ARCH_PPC64
 #include "src/codegen/ppc/constants-ppc.h"
 #include "src/codegen/ppc/macro-assembler-ppc.h"
 #elif V8_TARGET_ARCH_MIPS