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#![allow(unused_imports)]
use core::intrinsics;
#[cfg(all(windows, target_env = "gnu", not(feature = "mangled-names")))]
#[naked]
#[no_mangle]
pub unsafe fn ___chkstk_ms() {
llvm_asm!("
push %rcx
push %rax
cmp $$0x1000,%rax
lea 24(%rsp),%rcx
jb 1f
2:
sub $$0x1000,%rcx
test %rcx,(%rcx)
sub $$0x1000,%rax
cmp $$0x1000,%rax
ja 2b
1:
sub %rax,%rcx
test %rcx,(%rcx)
pop %rax
pop %rcx
ret" ::: "memory" : "volatile");
intrinsics::unreachable();
}
#[cfg(all(windows, target_env = "gnu", not(feature = "mangled-names")))]
#[naked]
#[no_mangle]
pub unsafe fn __alloca() {
llvm_asm!("mov %rcx,%rax // x64 _alloca is a normal function with parameter in rcx
jmp ___chkstk // Jump to ___chkstk since fallthrough may be unreliable"
::: "memory" : "volatile");
intrinsics::unreachable();
}
#[cfg(all(windows, target_env = "gnu", not(feature = "mangled-names")))]
#[naked]
#[no_mangle]
pub unsafe fn ___chkstk() {
llvm_asm!(
"
push %rcx
cmp $$0x1000,%rax
lea 16(%rsp),%rcx // rsp before calling this routine -> rcx
jb 1f
2:
sub $$0x1000,%rcx
test %rcx,(%rcx)
sub $$0x1000,%rax
cmp $$0x1000,%rax
ja 2b
1:
sub %rax,%rcx
test %rcx,(%rcx)
lea 8(%rsp),%rax // load pointer to the return address into rax
mov %rcx,%rsp // install the new top of stack pointer into rsp
mov -8(%rax),%rcx // restore rcx
push (%rax) // push return address onto the stack
sub %rsp,%rax // restore the original value in rax
ret"
::: "memory" : "volatile"
);
intrinsics::unreachable();
}
#[no_mangle]
#[used]
#[cfg(target_os = "uefi")]
static _fltused: i32 = 0;