static void
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arch_sigreturn(struct tcb *tcp)
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{
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/*
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* On i386, sigcontext is followed on stack by struct fpstate
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* and after it an additional u32 extramask which holds
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* upper half of the mask.
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*/
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struct {
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uint32_t struct_sigcontext_padding1[20];
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uint32_t oldmask;
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uint32_t struct_sigcontext_padding2;
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uint32_t struct_fpstate_padding[156];
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uint32_t extramask;
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} frame;
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if (umove(tcp, *i386_esp_ptr, &frame) < 0) {
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tprintf("{mask=%#lx}", (unsigned long) *i386_esp_ptr);
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} else {
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uint32_t mask[2] = { frame.oldmask, frame.extramask };
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tprintsigmask_addr("{mask=", mask);
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tprints("}");
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}
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}
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