Prefer asm! in std - all in sgx module
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4e3eb52493
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@ -21,8 +21,15 @@ extern "C" {
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#[inline(always)]
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#[inline(always)]
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#[unstable(feature = "sgx_platform", issue = "56975")]
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#[unstable(feature = "sgx_platform", issue = "56975")]
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pub fn image_base() -> u64 {
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pub fn image_base() -> u64 {
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let base;
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let base: u64;
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unsafe { llvm_asm!("lea IMAGE_BASE(%rip),$0":"=r"(base)) };
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unsafe {
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asm!(
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"lea IMAGE_BASE(%rip), {}",
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lateout(reg) base,
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// NOTE(#76738): ATT syntax is used to support LLVM 8 and 9.
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options(att_syntax, nostack, preserves_flags, nomem, pure),
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)
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};
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base
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base
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}
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}
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@ -31,13 +31,13 @@ pub fn egetkey(request: &Align512<[u8; 512]>) -> Result<Align16<[u8; 16]>, u32>
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let mut out = MaybeUninit::uninit();
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let mut out = MaybeUninit::uninit();
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let error;
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let error;
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llvm_asm!(
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asm!(
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"enclu"
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"enclu",
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: "={eax}"(error)
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inlateout("eax") ENCLU_EGETKEY => error,
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: "{eax}"(ENCLU_EGETKEY),
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in("rbx") request,
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"{rbx}"(request),
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in("rcx") out.as_mut_ptr(),
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"{rcx}"(out.as_mut_ptr())
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// NOTE(#76738): ATT syntax is used to support LLVM 8 and 9.
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: "flags"
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options(att_syntax, nostack),
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);
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);
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match error {
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match error {
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@ -60,13 +60,14 @@ pub fn ereport(
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unsafe {
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unsafe {
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let mut report = MaybeUninit::uninit();
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let mut report = MaybeUninit::uninit();
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llvm_asm!(
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asm!(
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"enclu"
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"enclu",
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: /* no output registers */
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in("eax") ENCLU_EREPORT,
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: "{eax}"(ENCLU_EREPORT),
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in("rbx") targetinfo,
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"{rbx}"(targetinfo),
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in("rcx") reportdata,
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"{rcx}"(reportdata),
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in("rdx") report.as_mut_ptr(),
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"{rdx}"(report.as_mut_ptr())
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// NOTE(#76738): ATT syntax is used to support LLVM 8 and 9.
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options(att_syntax, preserves_flags, nostack),
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);
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);
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report.assume_init()
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report.assume_init()
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