diff options
Diffstat (limited to 'src/libstd/sys/windows/backtrace.rs')
| -rw-r--r-- | src/libstd/sys/windows/backtrace.rs | 297 |
1 files changed, 42 insertions, 255 deletions
diff --git a/src/libstd/sys/windows/backtrace.rs b/src/libstd/sys/windows/backtrace.rs index b562e772b9c..d106bc3285c 100644 --- a/src/libstd/sys/windows/backtrace.rs +++ b/src/libstd/sys/windows/backtrace.rs @@ -27,12 +27,13 @@ use io::prelude::*; use dynamic_lib::DynamicLibrary; -use intrinsics; use io; -use libc; +use libc::c_void; +use mem; use path::Path; use ptr; use sync::StaticMutex; +use sys::c; macro_rules! sym{ ($lib:expr, $e:expr, $t:ident) => (unsafe { let lib = $lib; @@ -50,264 +51,50 @@ mod printing; #[path = "printing/gnu.rs"] mod printing; -#[allow(non_snake_case)] -extern "system" { - fn GetCurrentProcess() -> libc::HANDLE; - fn GetCurrentThread() -> libc::HANDLE; - fn RtlCaptureContext(ctx: *mut arch::CONTEXT); -} - type SymFromAddrFn = - extern "system" fn(libc::HANDLE, u64, *mut u64, - *mut SYMBOL_INFO) -> libc::BOOL; + extern "system" fn(c::HANDLE, u64, *mut u64, + *mut c::SYMBOL_INFO) -> c::BOOL; type SymGetLineFromAddr64Fn = - extern "system" fn(libc::HANDLE, u64, *mut u32, - *mut IMAGEHLP_LINE64) -> libc::BOOL; + extern "system" fn(c::HANDLE, u64, *mut u32, + *mut c::IMAGEHLP_LINE64) -> c::BOOL; type SymInitializeFn = - extern "system" fn(libc::HANDLE, *mut libc::c_void, - libc::BOOL) -> libc::BOOL; + extern "system" fn(c::HANDLE, *mut c_void, + c::BOOL) -> c::BOOL; type SymCleanupFn = - extern "system" fn(libc::HANDLE) -> libc::BOOL; + extern "system" fn(c::HANDLE) -> c::BOOL; type StackWalk64Fn = - extern "system" fn(libc::DWORD, libc::HANDLE, libc::HANDLE, - *mut STACKFRAME64, *mut arch::CONTEXT, - *mut libc::c_void, *mut libc::c_void, - *mut libc::c_void, *mut libc::c_void) -> libc::BOOL; - -const MAX_SYM_NAME: usize = 2000; -const IMAGE_FILE_MACHINE_I386: libc::DWORD = 0x014c; -const IMAGE_FILE_MACHINE_IA64: libc::DWORD = 0x0200; -const IMAGE_FILE_MACHINE_AMD64: libc::DWORD = 0x8664; - -#[repr(C)] -struct SYMBOL_INFO { - SizeOfStruct: libc::c_ulong, - TypeIndex: libc::c_ulong, - Reserved: [u64; 2], - Index: libc::c_ulong, - Size: libc::c_ulong, - ModBase: u64, - Flags: libc::c_ulong, - Value: u64, - Address: u64, - Register: libc::c_ulong, - Scope: libc::c_ulong, - Tag: libc::c_ulong, - NameLen: libc::c_ulong, - MaxNameLen: libc::c_ulong, - // note that windows has this as 1, but it basically just means that - // the name is inline at the end of the struct. For us, we just bump - // the struct size up to MAX_SYM_NAME. - Name: [libc::c_char; MAX_SYM_NAME], -} - -#[repr(C)] -struct IMAGEHLP_LINE64 { - SizeOfStruct: u32, - Key: *const libc::c_void, - LineNumber: u32, - Filename: *const libc::c_char, - Address: u64, -} - -#[repr(C)] -enum ADDRESS_MODE { - AddrMode1616, - AddrMode1632, - AddrModeReal, - AddrModeFlat, -} - -struct ADDRESS64 { - Offset: u64, - Segment: u16, - Mode: ADDRESS_MODE, -} - -pub struct STACKFRAME64 { - AddrPC: ADDRESS64, - AddrReturn: ADDRESS64, - AddrFrame: ADDRESS64, - AddrStack: ADDRESS64, - AddrBStore: ADDRESS64, - FuncTableEntry: *mut libc::c_void, - Params: [u64; 4], - Far: libc::BOOL, - Virtual: libc::BOOL, - Reserved: [u64; 3], - KdHelp: KDHELP64, -} - -struct KDHELP64 { - Thread: u64, - ThCallbackStack: libc::DWORD, - ThCallbackBStore: libc::DWORD, - NextCallback: libc::DWORD, - FramePointer: libc::DWORD, - KiCallUserMode: u64, - KeUserCallbackDispatcher: u64, - SystemRangeStart: u64, - KiUserExceptionDispatcher: u64, - StackBase: u64, - StackLimit: u64, - Reserved: [u64; 5], -} + extern "system" fn(c::DWORD, c::HANDLE, c::HANDLE, + *mut c::STACKFRAME64, *mut c::CONTEXT, + *mut c_void, *mut c_void, + *mut c_void, *mut c_void) -> c::BOOL; #[cfg(target_arch = "x86")] -mod arch { - use libc; - - const MAXIMUM_SUPPORTED_EXTENSION: usize = 512; - - #[repr(C)] - pub struct CONTEXT { - ContextFlags: libc::DWORD, - Dr0: libc::DWORD, - Dr1: libc::DWORD, - Dr2: libc::DWORD, - Dr3: libc::DWORD, - Dr6: libc::DWORD, - Dr7: libc::DWORD, - FloatSave: FLOATING_SAVE_AREA, - SegGs: libc::DWORD, - SegFs: libc::DWORD, - SegEs: libc::DWORD, - SegDs: libc::DWORD, - Edi: libc::DWORD, - Esi: libc::DWORD, - Ebx: libc::DWORD, - Edx: libc::DWORD, - Ecx: libc::DWORD, - Eax: libc::DWORD, - Ebp: libc::DWORD, - Eip: libc::DWORD, - SegCs: libc::DWORD, - EFlags: libc::DWORD, - Esp: libc::DWORD, - SegSs: libc::DWORD, - ExtendedRegisters: [u8; MAXIMUM_SUPPORTED_EXTENSION], - } - - #[repr(C)] - pub struct FLOATING_SAVE_AREA { - ControlWord: libc::DWORD, - StatusWord: libc::DWORD, - TagWord: libc::DWORD, - ErrorOffset: libc::DWORD, - ErrorSelector: libc::DWORD, - DataOffset: libc::DWORD, - DataSelector: libc::DWORD, - RegisterArea: [u8; 80], - Cr0NpxState: libc::DWORD, - } - - pub fn init_frame(frame: &mut super::STACKFRAME64, - ctx: &CONTEXT) -> libc::DWORD { - frame.AddrPC.Offset = ctx.Eip as u64; - frame.AddrPC.Mode = super::ADDRESS_MODE::AddrModeFlat; - frame.AddrStack.Offset = ctx.Esp as u64; - frame.AddrStack.Mode = super::ADDRESS_MODE::AddrModeFlat; - frame.AddrFrame.Offset = ctx.Ebp as u64; - frame.AddrFrame.Mode = super::ADDRESS_MODE::AddrModeFlat; - super::IMAGE_FILE_MACHINE_I386 - } +pub fn init_frame(frame: &mut c::STACKFRAME64, + ctx: &c::CONTEXT) -> c::DWORD { + frame.AddrPC.Offset = ctx.Eip as u64; + frame.AddrPC.Mode = c::ADDRESS_MODE::AddrModeFlat; + frame.AddrStack.Offset = ctx.Esp as u64; + frame.AddrStack.Mode = c::ADDRESS_MODE::AddrModeFlat; + frame.AddrFrame.Offset = ctx.Ebp as u64; + frame.AddrFrame.Mode = c::ADDRESS_MODE::AddrModeFlat; + c::IMAGE_FILE_MACHINE_I386 } #[cfg(target_arch = "x86_64")] -mod arch { - #![allow(deprecated)] - - use libc::{c_longlong, c_ulonglong}; - use libc::types::os::arch::extra::{WORD, DWORD, DWORDLONG}; - use simd; - - #[repr(C)] - pub struct CONTEXT { - _align_hack: [simd::u64x2; 0], // FIXME align on 16-byte - P1Home: DWORDLONG, - P2Home: DWORDLONG, - P3Home: DWORDLONG, - P4Home: DWORDLONG, - P5Home: DWORDLONG, - P6Home: DWORDLONG, - - ContextFlags: DWORD, - MxCsr: DWORD, - - SegCs: WORD, - SegDs: WORD, - SegEs: WORD, - SegFs: WORD, - SegGs: WORD, - SegSs: WORD, - EFlags: DWORD, - - Dr0: DWORDLONG, - Dr1: DWORDLONG, - Dr2: DWORDLONG, - Dr3: DWORDLONG, - Dr6: DWORDLONG, - Dr7: DWORDLONG, - - Rax: DWORDLONG, - Rcx: DWORDLONG, - Rdx: DWORDLONG, - Rbx: DWORDLONG, - Rsp: DWORDLONG, - Rbp: DWORDLONG, - Rsi: DWORDLONG, - Rdi: DWORDLONG, - R8: DWORDLONG, - R9: DWORDLONG, - R10: DWORDLONG, - R11: DWORDLONG, - R12: DWORDLONG, - R13: DWORDLONG, - R14: DWORDLONG, - R15: DWORDLONG, - - Rip: DWORDLONG, - - FltSave: FLOATING_SAVE_AREA, - - VectorRegister: [M128A; 26], - VectorControl: DWORDLONG, - - DebugControl: DWORDLONG, - LastBranchToRip: DWORDLONG, - LastBranchFromRip: DWORDLONG, - LastExceptionToRip: DWORDLONG, - LastExceptionFromRip: DWORDLONG, - } - - #[repr(C)] - pub struct M128A { - _align_hack: [simd::u64x2; 0], // FIXME align on 16-byte - Low: c_ulonglong, - High: c_longlong - } - - #[repr(C)] - pub struct FLOATING_SAVE_AREA { - _align_hack: [simd::u64x2; 0], // FIXME align on 16-byte - _Dummy: [u8; 512] // FIXME: Fill this out - } - - pub fn init_frame(frame: &mut super::STACKFRAME64, - ctx: &CONTEXT) -> DWORD { - frame.AddrPC.Offset = ctx.Rip as u64; - frame.AddrPC.Mode = super::ADDRESS_MODE::AddrModeFlat; - frame.AddrStack.Offset = ctx.Rsp as u64; - frame.AddrStack.Mode = super::ADDRESS_MODE::AddrModeFlat; - frame.AddrFrame.Offset = ctx.Rbp as u64; - frame.AddrFrame.Mode = super::ADDRESS_MODE::AddrModeFlat; - super::IMAGE_FILE_MACHINE_AMD64 - } +pub fn init_frame(frame: &mut c::STACKFRAME64, + ctx: &c::CONTEXT) -> c::DWORD { + frame.AddrPC.Offset = ctx.Rip as u64; + frame.AddrPC.Mode = c::ADDRESS_MODE::AddrModeFlat; + frame.AddrStack.Offset = ctx.Rsp as u64; + frame.AddrStack.Mode = c::ADDRESS_MODE::AddrModeFlat; + frame.AddrFrame.Offset = ctx.Rbp as u64; + frame.AddrFrame.Mode = c::ADDRESS_MODE::AddrModeFlat; + c::IMAGE_FILE_MACHINE_AMD64 } struct Cleanup { - handle: libc::HANDLE, + handle: c::HANDLE, SymCleanup: SymCleanupFn, } @@ -335,16 +122,16 @@ pub fn write(w: &mut Write) -> io::Result<()> { let StackWalk64 = sym!(&dbghelp, "StackWalk64", StackWalk64Fn); // Allocate necessary structures for doing the stack walk - let process = unsafe { GetCurrentProcess() }; - let thread = unsafe { GetCurrentThread() }; - let mut context: arch::CONTEXT = unsafe { intrinsics::init() }; - unsafe { RtlCaptureContext(&mut context); } - let mut frame: STACKFRAME64 = unsafe { intrinsics::init() }; - let image = arch::init_frame(&mut frame, &context); + let process = unsafe { c::GetCurrentProcess() }; + let thread = unsafe { c::GetCurrentThread() }; + let mut context: c::CONTEXT = unsafe { mem::zeroed() }; + unsafe { c::RtlCaptureContext(&mut context); } + let mut frame: c::STACKFRAME64 = unsafe { mem::zeroed() }; + let image = init_frame(&mut frame, &context); // Initialize this process's symbols - let ret = SymInitialize(process, ptr::null_mut(), libc::TRUE); - if ret != libc::TRUE { return Ok(()) } + let ret = SymInitialize(process, ptr::null_mut(), c::TRUE); + if ret != c::TRUE { return Ok(()) } let _c = Cleanup { handle: process, SymCleanup: SymCleanup }; // And now that we're done with all the setup, do the stack walking! @@ -356,7 +143,7 @@ pub fn write(w: &mut Write) -> io::Result<()> { ptr::null_mut(), ptr::null_mut(), ptr::null_mut(), - ptr::null_mut()) == libc::TRUE{ + ptr::null_mut()) == c::TRUE { let addr = frame.AddrPC.Offset; if addr == frame.AddrReturn.Offset || addr == 0 || frame.AddrReturn.Offset == 0 { break } |