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/*
The function for switching to the C stack. It is called
__morestack because gdb allows any frame with that name to
move the stack pointer to a different stack, which it usually
considers an error.
*/
#include "regs.h"
#define ARG0 RUSTRT_ARG0_S
#define ARG1 RUSTRT_ARG1_S
#define ARG2 RUSTRT_ARG2_S
.text
#if defined(__APPLE__) || defined(_WIN32)
.globl ___morestack
.private_extern MORESTACK
___morestack:
#else
.globl __morestack
.hidden __morestack
__morestack:
#endif
#if defined(__linux__) || defined(__APPLE__) || defined(__FreeBSD__)
.cfi_startproc
#endif
push %rbp
#if defined(__linux__) || defined(__APPLE__) || defined(__FreeBSD__)
.cfi_def_cfa_offset 16
.cfi_offset %rbp, -16
#endif
mov %rsp,%rbp // save rsp
#if defined(__linux__) || defined(__APPLE__) || defined(__FreeBSD__)
.cfi_def_cfa_register %rbp
#endif
mov ARG2,%rsp // switch stack
call *ARG1 // invoke target address
mov %rbp,%rsp
pop %rbp
ret
#if defined(__linux__) || defined(__APPLE__) || defined(__FreeBSD__)
.cfi_endproc
#endif
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