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Fix musl compatibility issues.

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This commit is contained in:
losfair
2020-01-29 00:38:39 +08:00
parent 5476994c90
commit 8845e1104b
2 changed files with 42 additions and 36 deletions
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60
lib/runtime-core/src/fault.rs
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@ -570,13 +570,13 @@ pub unsafe fn get_fault_info(siginfo: *const c_void, ucontext: *mut c_void) -> F
#[cfg(all(target_os = "linux", target_arch = "x86_64"))]
/// Get fault info from siginfo and ucontext.
pub unsafe fn get_fault_info(siginfo: *const c_void, ucontext: *mut c_void) -> FaultInfo {
use crate::state::x64::XMM;
use libc::{
_libc_xmmreg, ucontext_t, REG_R10, REG_R11, REG_R12, REG_R13, REG_R14, REG_R15, REG_R8,
ucontext_t, REG_R10, REG_R11, REG_R12, REG_R13, REG_R14, REG_R15, REG_R8,
REG_R9, REG_RAX, REG_RBP, REG_RBX, REG_RCX, REG_RDI, REG_RDX, REG_RIP, REG_RSI, REG_RSP,
};
fn read_xmm(reg: &_libc_xmmreg) -> u64 {
#[cfg(not(target_env = "musl"))]
fn read_xmm(reg: &libc::_libc_xmmreg) -> u64 {
(reg.element[0] as u64) | ((reg.element[1] as u64) << 32)
}
@ -615,30 +615,36 @@ pub unsafe fn get_fault_info(siginfo: *const c_void, ucontext: *mut c_void) -> F
known_registers[X64Register::GPR(GPR::RBP).to_index().0] = Some(gregs[REG_RBP as usize] as _);
known_registers[X64Register::GPR(GPR::RSP).to_index().0] = Some(gregs[REG_RSP as usize] as _);
if !(*ucontext).uc_mcontext.fpregs.is_null() {
let fpregs = &*(*ucontext).uc_mcontext.fpregs;
known_registers[X64Register::XMM(XMM::XMM0).to_index().0] = Some(read_xmm(&fpregs._xmm[0]));
known_registers[X64Register::XMM(XMM::XMM1).to_index().0] = Some(read_xmm(&fpregs._xmm[1]));
known_registers[X64Register::XMM(XMM::XMM2).to_index().0] = Some(read_xmm(&fpregs._xmm[2]));
known_registers[X64Register::XMM(XMM::XMM3).to_index().0] = Some(read_xmm(&fpregs._xmm[3]));
known_registers[X64Register::XMM(XMM::XMM4).to_index().0] = Some(read_xmm(&fpregs._xmm[4]));
known_registers[X64Register::XMM(XMM::XMM5).to_index().0] = Some(read_xmm(&fpregs._xmm[5]));
known_registers[X64Register::XMM(XMM::XMM6).to_index().0] = Some(read_xmm(&fpregs._xmm[6]));
known_registers[X64Register::XMM(XMM::XMM7).to_index().0] = Some(read_xmm(&fpregs._xmm[7]));
known_registers[X64Register::XMM(XMM::XMM8).to_index().0] = Some(read_xmm(&fpregs._xmm[8]));
known_registers[X64Register::XMM(XMM::XMM9).to_index().0] = Some(read_xmm(&fpregs._xmm[9]));
known_registers[X64Register::XMM(XMM::XMM10).to_index().0] =
Some(read_xmm(&fpregs._xmm[10]));
known_registers[X64Register::XMM(XMM::XMM11).to_index().0] =
Some(read_xmm(&fpregs._xmm[11]));
known_registers[X64Register::XMM(XMM::XMM12).to_index().0] =
Some(read_xmm(&fpregs._xmm[12]));
known_registers[X64Register::XMM(XMM::XMM13).to_index().0] =
Some(read_xmm(&fpregs._xmm[13]));
known_registers[X64Register::XMM(XMM::XMM14).to_index().0] =
Some(read_xmm(&fpregs._xmm[14]));
known_registers[X64Register::XMM(XMM::XMM15).to_index().0] =
Some(read_xmm(&fpregs._xmm[15]));
// Skip reading floating point registers when building with musl libc.
// FIXME: Depends on https://github.com/rust-lang/libc/pull/1646
#[cfg(not(target_env = "musl"))]
{
use crate::state::x64::XMM;
if !(*ucontext).uc_mcontext.fpregs.is_null() {
let fpregs = &*(*ucontext).uc_mcontext.fpregs;
known_registers[X64Register::XMM(XMM::XMM0).to_index().0] = Some(read_xmm(&fpregs._xmm[0]));
known_registers[X64Register::XMM(XMM::XMM1).to_index().0] = Some(read_xmm(&fpregs._xmm[1]));
known_registers[X64Register::XMM(XMM::XMM2).to_index().0] = Some(read_xmm(&fpregs._xmm[2]));
known_registers[X64Register::XMM(XMM::XMM3).to_index().0] = Some(read_xmm(&fpregs._xmm[3]));
known_registers[X64Register::XMM(XMM::XMM4).to_index().0] = Some(read_xmm(&fpregs._xmm[4]));
known_registers[X64Register::XMM(XMM::XMM5).to_index().0] = Some(read_xmm(&fpregs._xmm[5]));
known_registers[X64Register::XMM(XMM::XMM6).to_index().0] = Some(read_xmm(&fpregs._xmm[6]));
known_registers[X64Register::XMM(XMM::XMM7).to_index().0] = Some(read_xmm(&fpregs._xmm[7]));
known_registers[X64Register::XMM(XMM::XMM8).to_index().0] = Some(read_xmm(&fpregs._xmm[8]));
known_registers[X64Register::XMM(XMM::XMM9).to_index().0] = Some(read_xmm(&fpregs._xmm[9]));
known_registers[X64Register::XMM(XMM::XMM10).to_index().0] =
Some(read_xmm(&fpregs._xmm[10]));
known_registers[X64Register::XMM(XMM::XMM11).to_index().0] =
Some(read_xmm(&fpregs._xmm[11]));
known_registers[X64Register::XMM(XMM::XMM12).to_index().0] =
Some(read_xmm(&fpregs._xmm[12]));
known_registers[X64Register::XMM(XMM::XMM13).to_index().0] =
Some(read_xmm(&fpregs._xmm[13]));
known_registers[X64Register::XMM(XMM::XMM14).to_index().0] =
Some(read_xmm(&fpregs._xmm[14]));
known_registers[X64Register::XMM(XMM::XMM15).to_index().0] =
Some(read_xmm(&fpregs._xmm[15]));
}
}
FaultInfo {