19 lines
762 B
Diff
19 lines
762 B
Diff
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--- a/mysys/my_context.c
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+++ b/mysys/my_context.c
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@@ -206,15 +206,6 @@ my_context_spawn(struct my_context *c, void (*f)(void *), void *d)
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(
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"movq %%rsp, (%[save])\n\t"
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"movq %[stack], %%rsp\n\t"
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-#if __GNUC__ >= 4 && __GNUC_MINOR__ >= 4 && !defined(__INTEL_COMPILER)
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- /*
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- This emits a DWARF DW_CFA_undefined directive to make the return address
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- undefined. This indicates that this is the top of the stack frame, and
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- helps tools that use DWARF stack unwinding to obtain stack traces.
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- (I use numeric constant to avoid a dependency on libdwarf includes).
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- */
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- ".cfi_escape 0x07, 16\n\t"
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-#endif
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"movq %%rbp, 8(%[save])\n\t"
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"movq %%rbx, 16(%[save])\n\t"
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"movq %%r12, 24(%[save])\n\t"
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