21 lines
471 B
C
21 lines
471 B
C
#include <socks/machine/thread.h>
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struct thread_ctx {
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uint64_t r15, r14, r13, r12, r11, r10, r9, r8;
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uint64_t rdi, rsi, rbp, unused_rsp, rbx, rdx, rcx, rax;
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uint64_t rfl;
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} __packed;
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void prepare_stack(uintptr_t ip, uintptr_t *sp)
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{
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(*sp) -= sizeof(uintptr_t);
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uintptr_t *dest_ip = (uintptr_t *)(*sp);
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*dest_ip = ip;
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(*sp) -= sizeof(struct thread_ctx);
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struct thread_ctx *ctx = (struct thread_ctx *)(*sp);
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memset(ctx, 0x0, sizeof *ctx);
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ctx->rfl = 0x202;
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}
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