forked from AbleOS/ableos
Merge pull request 'Migrated to asm! macro and updated to fork of cpuio (which uses asm! instead of llvm_asm! too)' (#8) from assembly-fixes into master
Reviewed-on: https://git.ablecorp.us:443/able/ableos/pulls/8
This commit is contained in:
commit
016e94fedf
4
ableos/Cargo.lock
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4
ableos/Cargo.lock
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@ -150,8 +150,8 @@ dependencies = [
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[[package]]
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name = "cpuio"
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version = "0.3.0"
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source = "git+https://github.com/anyusernameworks/cpuio.git#3908ecab79df80670ee1c5121870fc131f07627b"
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version = "0.3.2"
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source = "git+https://git.ablecorp.us/ondra05/cpuio.git#093cc103101b4ba4abd02d77c884113a376cdc64"
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[[package]]
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name = "crunchy"
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@ -100,7 +100,7 @@ git = "https://git.ablecorp.us:443/able/externc-libm.git"
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[target.'cfg(target_arch = "x86_64")'.dependencies]
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bootloader = { version = "0.9.8", features = ["map_physical_memory"] }
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cpuio = { git = "https://github.com/anyusernameworks/cpuio.git" }
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cpuio = { git = "https://git.ablecorp.us/ondra05/cpuio.git" }
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pic8259 = "0.10.1"
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uart_16550 = "0.2.0"
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volatile = "0.2.6"
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@ -18,6 +18,7 @@
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//! }
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//! ```
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use core::arch::asm;
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use core::ops::Deref;
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use core::{fmt, slice, str};
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@ -39,28 +40,27 @@ pub enum RequestType {
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}
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pub fn cpuid(code: RequestType) -> (u32, u32, u32, u32) {
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let res1;
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let res2;
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let res3;
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let res4;
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let eax;
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let ebx;
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let ecx;
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let edx;
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unsafe {
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llvm_asm!("cpuid"
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: // output operands
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"={eax}"(res1),
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"={ebx}"(res2),
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"={ecx}"(res3),
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"={edx}"(res4)
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: // input operands
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"{eax}"(code as u32),
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"{ecx}"(0 as u32)
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: // clobbers
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: // options
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asm!(
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"movq %rbx, {0:r}",
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"cpuid",
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"xchgq %rbx, {0:r}",
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lateout(reg) ebx,
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inlateout("eax") code as u32 => eax,
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inlateout("ecx") 0 => ecx,
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lateout("edx") edx,
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options(nostack, preserves_flags, att_syntax),
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);
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}
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(res1, res2, res3, res4)
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(eax, ebx, ecx, edx)
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}
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/// The main entrypoint to the CPU information
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#[cfg(any(target_arch = "x86_64", target_arch = "x86"))]
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pub fn master() -> Option<Master> {
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@ -6,17 +6,14 @@
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#![no_std]
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#![feature(
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abi_x86_interrupt,
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// asm,
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asm_sym,
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alloc_error_handler,
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core_intrinsics,
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// global_asm,
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exclusive_range_pattern,
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lang_items,
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llvm_asm,
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naked_functions
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naked_functions,
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slice_pattern,
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)]
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#![feature(exclusive_range_pattern)]
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#![feature(slice_pattern)]
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/// Contains architecture specific code for aarch64.
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#[cfg(target_arch = "aarch64")]
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