1 files changed, 67 insertions, 0 deletions
diff --git a/community/qt5-qtwebkit/musl-mcontext.patch b/community/qt5-qtwebkit/musl-mcontext.patch
new file mode 100644
index 0000000000..20100ca6e7
--- /dev/null
+++ b/community/qt5-qtwebkit/musl-mcontext.patch
@@ -0,0 +1,67 @@
+diff --git a/Source/JavaScriptCore/heap/MachineStackMarker.cpp b/Source/JavaScriptCore/heap/MachineStackMarker.cpp
+index 883914fd3d1..9c0209ad2f3 100644
+--- a/Source/JavaScriptCore/heap/MachineStackMarker.cpp
++++ b/Source/JavaScriptCore/heap/MachineStackMarker.cpp
+@@ -683,7 +683,19 @@ void* MachineThreads::Thread::Registers::framePointer() const
+ #endif
+ 
+ #else
+-#error Need a way to get the frame pointer for another thread on this platform
++
++// The following sequence depends on musl libc's sys/ucontext.h.
++#if CPU(X86)
++    return reinterpret_cast<void*>((uintptr_t) regs.machineContext.gregs[REG_EBP]);
++#elif CPU(X86_64)
++    return reinterpret_cast<void*>((uintptr_t) regs.machineContext.gregs[REG_RBP]);
++#elif CPU(ARM)
++    return reinterpret_cast<void*>((uintptr_t) regs.machineContext.arm_fp);
++#elif CPU(ARM64)
++    return reinterpret_cast<void*>((uintptr_t) regs.machineContext.regs[29]);
++#elif CPU(MIPS) 
++    return reinterpret_cast<void*>((uintptr_t) regs.machineContext.gregs[30]);
++#endif
+ #endif
+ }
+ 
+@@ -765,7 +777,19 @@ void* MachineThreads::Thread::Registers::instructionPointer() const
+ #endif
+ 
+ #else
+-#error Need a way to get the instruction pointer for another thread on this platform
++
++// The following sequence depends on musl libc's sys/ucontext.h.
++#if CPU(X86)
++    return reinterpret_cast<void*>((uintptr_t) regs.machineContext.gregs[REG_EIP]);
++#elif CPU(X86_64)
++    return reinterpret_cast<void*>((uintptr_t) regs.machineContext.gregs[REG_RIP]);
++#elif CPU(ARM)
++    return reinterpret_cast<void*>((uintptr_t) regs.machineContext.arm_pc);
++#elif CPU(ARM64)
++    return reinterpret_cast<void*>((uintptr_t) regs.machineContext.pc);
++#elif CPU(MIPS) 
++    return reinterpret_cast<void *>((uintptr_t)regs.machineContext.pc);
++#endif
+ #endif
+ }
+ void* MachineThreads::Thread::Registers::llintPC() const
+@@ -856,7 +880,19 @@ void* MachineThreads::Thread::Registers::llintPC() const
+ #endif
+ 
+ #else
+-#error Need a way to get the LLIntPC for another thread on this platform
++
++// The following sequence depends on musl libc's sys/ucontext.h.
++#if CPU(X86)
++    return reinterpret_cast<void*>((uintptr_t) regs.machineContext.gregs[REG_ESI]);
++#elif CPU(X86_64)
++    return reinterpret_cast<void*>((uintptr_t) regs.machineContext.gregs[REG_R8]);
++#elif CPU(ARM)
++    return reinterpret_cast<void*>((uintptr_t) regs.machineContext.arm_r8);
++#elif CPU(ARM64)
++    return reinterpret_cast<void*>((uintptr_t) regs.machineContext.regs[4]);
++#elif CPU(MIPS)
++    return reinterpret_cast<void*>((uintptr_t) regs.machineContext.gregs[12]);
++#endif
+ #endif
+ }
+ #endif // ENABLE(SAMPLING_PROFILER)