forked from M-Labs/libfringe
parent
84d6cef719
commit
809215921b
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@ -41,6 +41,7 @@
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// * The 1st init trampoline tells the unwinder to restore r2 and r9
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// * The 1st init trampoline tells the unwinder to restore r2 and r9
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// from the stack frame at r2 (in the parent stack), thus continuing
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// from the stack frame at r2 (in the parent stack), thus continuing
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// unwinding at the swap call site instead of falling off the end of context stack.
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// unwinding at the swap call site instead of falling off the end of context stack.
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use core::mem;
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use stack::Stack;
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use stack::Stack;
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pub const STACK_ALIGNMENT: usize = 4;
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pub const STACK_ALIGNMENT: usize = 4;
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@ -101,11 +102,11 @@ pub unsafe fn init(stack: &Stack, f: unsafe extern "C" fn(usize, StackPointer) -
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# doesn't point to the start of the symbol. This confuses gdb's backtraces,
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# doesn't point to the start of the symbol. This confuses gdb's backtraces,
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# causing them to think the parent function is trampoline_1 instead of
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# causing them to think the parent function is trampoline_1 instead of
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# trampoline_2.
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# trampoline_2.
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nop
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l.nop
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# Call the provided function.
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# Call the provided function.
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l.lwz r4, 8(r1)
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l.lwz r5, 8(r1)
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l.jalr r4
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l.jalr r5
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l.nop
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l.nop
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"#
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"#
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: : : : "volatile")
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: : : : "volatile")
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