mirror of
https://gitlab.alpinelinux.org/alpine/aports.git
synced 2025-07-26 04:35:39 +03:00
67 lines
2.6 KiB
Diff
67 lines
2.6 KiB
Diff
diff --git a/Source/JavaScriptCore/heap/MachineStackMarker.cpp b/Source/JavaScriptCore/heap/MachineStackMarker.cpp
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index 883914fd3d1..9c0209ad2f3 100644
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--- a/Source/JavaScriptCore/heap/MachineStackMarker.cpp
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+++ b/Source/JavaScriptCore/heap/MachineStackMarker.cpp
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@@ -683,7 +683,19 @@ void* MachineThreads::Thread::Registers::framePointer() const
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#endif
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#else
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-#error Need a way to get the frame pointer for another thread on this platform
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+
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+// The following sequence depends on musl libc's sys/ucontext.h.
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+#if CPU(X86)
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+ return reinterpret_cast<void*>((uintptr_t) regs.machineContext.gregs[REG_EBP]);
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+#elif CPU(X86_64)
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+ return reinterpret_cast<void*>((uintptr_t) regs.machineContext.gregs[REG_RBP]);
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+#elif CPU(ARM)
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+ return reinterpret_cast<void*>((uintptr_t) regs.machineContext.arm_fp);
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+#elif CPU(ARM64)
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+ return reinterpret_cast<void*>((uintptr_t) regs.machineContext.regs[29]);
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+#elif CPU(MIPS)
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+ return reinterpret_cast<void*>((uintptr_t) regs.machineContext.gregs[30]);
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+#endif
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#endif
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}
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@@ -765,7 +777,19 @@ void* MachineThreads::Thread::Registers::instructionPointer() const
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#endif
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#else
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-#error Need a way to get the instruction pointer for another thread on this platform
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+
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+// The following sequence depends on musl libc's sys/ucontext.h.
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+#if CPU(X86)
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+ return reinterpret_cast<void*>((uintptr_t) regs.machineContext.gregs[REG_EIP]);
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+#elif CPU(X86_64)
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+ return reinterpret_cast<void*>((uintptr_t) regs.machineContext.gregs[REG_RIP]);
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+#elif CPU(ARM)
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+ return reinterpret_cast<void*>((uintptr_t) regs.machineContext.arm_pc);
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+#elif CPU(ARM64)
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+ return reinterpret_cast<void*>((uintptr_t) regs.machineContext.pc);
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+#elif CPU(MIPS)
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+ return reinterpret_cast<void *>((uintptr_t)regs.machineContext.pc);
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+#endif
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#endif
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}
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void* MachineThreads::Thread::Registers::llintPC() const
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@@ -856,7 +880,19 @@ void* MachineThreads::Thread::Registers::llintPC() const
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#endif
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#else
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-#error Need a way to get the LLIntPC for another thread on this platform
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+
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+// The following sequence depends on musl libc's sys/ucontext.h.
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+#if CPU(X86)
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+ return reinterpret_cast<void*>((uintptr_t) regs.machineContext.gregs[REG_ESI]);
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+#elif CPU(X86_64)
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+ return reinterpret_cast<void*>((uintptr_t) regs.machineContext.gregs[REG_R8]);
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+#elif CPU(ARM)
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+ return reinterpret_cast<void*>((uintptr_t) regs.machineContext.arm_r8);
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+#elif CPU(ARM64)
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+ return reinterpret_cast<void*>((uintptr_t) regs.machineContext.regs[4]);
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+#elif CPU(MIPS)
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+ return reinterpret_cast<void*>((uintptr_t) regs.machineContext.gregs[12]);
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+#endif
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#endif
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}
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#endif // ENABLE(SAMPLING_PROFILER)
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