forked from OSchip/llvm-project
Clear up the documentation for the "container-regs" and "invalidate-regs" key/value pair responses for qRegisterInfo with examples of single and multiple registers for each.
llvm-svn: 173107
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@ -377,9 +377,17 @@ container-regs
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This specifies that this register is contained in other concrete
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register values. For example "eax" is in the lower 32 bits of the
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"rax" register value for x86_64, so "eax" could specify that it is
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contained in "rax" by specifying the register number for "rax".
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contained in "rax" by specifying the register number for "rax" (whose
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register number is 0x00)
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"container-regs:00,0a,3b;"
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"container-regs:00;"
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If a register is comprised of one or more registers, like "d0" is ARM
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which is a 64 bit register, it might be made up of "s0" and "s1". If
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the register number for "s0" is 0x20, and the register number of "s1"
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is "0x21", the "container-regs" key/value pair would be:
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"container-regs:20,21;"
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This is handy for defining what GDB used to call "pseudo" registers.
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These registers are never requested by LLDB via the register read
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@ -391,9 +399,17 @@ invalidate-regs
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leading "0x") register numbers.
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This specifies which register values should be invalidated when this
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register is modified.
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register is modified. For example if modifying "eax" would cause "rax",
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"eax", "ax", "ah", and "al" to be modified where rax is 0x0, eax is 15,
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ax is 0x25, ah is 0x35, and al is 0x39, the "invalidate-regs" key/value
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pair would be:
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"invalidate-regs:01,0b,1e;"
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"invalidate-regs:0,15,25,35,39;"
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If there is a single register that gets invalidated, then omit the comma
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and just list a single register:
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"invalidate-regs:0;"
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This is handy when modifying a specific register can cause other
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register values to change. For example, when debugging an ARM target,
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