run rustfmt on libpanic_unwind
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16eeeac783
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1cc1dcce7d
4 changed files with 20 additions and 21 deletions
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@ -182,12 +182,8 @@ unsafe fn read_encoded_pointer(reader: &mut DwarfReader,
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assert!(context.func_start != 0);
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assert!(context.func_start != 0);
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context.func_start
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context.func_start
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}
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}
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DW_EH_PE_textrel => {
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DW_EH_PE_textrel => (*context.get_text_start)(),
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(*context.get_text_start)()
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DW_EH_PE_datarel => (*context.get_data_start)(),
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}
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DW_EH_PE_datarel => {
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(*context.get_data_start)()
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}
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_ => panic!(),
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_ => panic!(),
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};
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};
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@ -57,13 +57,10 @@ unsafe extern "C" fn rust_eh_personality(version: c_int,
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exception_object: *mut uw::_Unwind_Exception,
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exception_object: *mut uw::_Unwind_Exception,
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context: *mut uw::_Unwind_Context)
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context: *mut uw::_Unwind_Context)
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-> uw::_Unwind_Reason_Code {
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-> uw::_Unwind_Reason_Code {
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__gxx_personality_v0(version, actions,
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__gxx_personality_v0(version, actions, exception_class, exception_object, context)
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exception_class,
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exception_object,
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context)
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}
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}
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extern {
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extern "C" {
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fn __cxa_allocate_exception(thrown_size: libc::size_t) -> *mut libc::c_void;
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fn __cxa_allocate_exception(thrown_size: libc::size_t) -> *mut libc::c_void;
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fn __cxa_free_exception(thrown_exception: *mut libc::c_void);
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fn __cxa_free_exception(thrown_exception: *mut libc::c_void);
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fn __cxa_throw(thrown_exception: *mut libc::c_void,
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fn __cxa_throw(thrown_exception: *mut libc::c_void,
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@ -156,14 +156,16 @@ unsafe extern "C" fn rust_eh_personality(version: c_int,
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let eh_action = find_eh_action(context);
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let eh_action = find_eh_action(context);
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if actions as i32 & uw::_UA_SEARCH_PHASE as i32 != 0 {
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if actions as i32 & uw::_UA_SEARCH_PHASE as i32 != 0 {
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match eh_action {
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match eh_action {
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EHAction::None | EHAction::Cleanup(_) => return uw::_URC_CONTINUE_UNWIND,
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EHAction::None |
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EHAction::Cleanup(_) => return uw::_URC_CONTINUE_UNWIND,
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EHAction::Catch(_) => return uw::_URC_HANDLER_FOUND,
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EHAction::Catch(_) => return uw::_URC_HANDLER_FOUND,
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EHAction::Terminate => return uw::_URC_FATAL_PHASE1_ERROR,
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EHAction::Terminate => return uw::_URC_FATAL_PHASE1_ERROR,
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}
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}
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} else {
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} else {
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match eh_action {
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match eh_action {
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EHAction::None => return uw::_URC_CONTINUE_UNWIND,
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EHAction::None => return uw::_URC_CONTINUE_UNWIND,
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EHAction::Cleanup(lpad) | EHAction::Catch(lpad) => {
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EHAction::Cleanup(lpad) |
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EHAction::Catch(lpad) => {
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uw::_Unwind_SetGR(context, UNWIND_DATA_REG.0, exception_object as uintptr_t);
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uw::_Unwind_SetGR(context, UNWIND_DATA_REG.0, exception_object as uintptr_t);
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uw::_Unwind_SetGR(context, UNWIND_DATA_REG.1, 0);
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uw::_Unwind_SetGR(context, UNWIND_DATA_REG.1, 0);
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uw::_Unwind_SetIP(context, lpad);
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uw::_Unwind_SetIP(context, lpad);
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@ -191,7 +193,7 @@ unsafe extern "C" fn rust_eh_personality(state: uw::_Unwind_State,
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// we want to continue unwinding the stack, otherwise all our backtraces
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// we want to continue unwinding the stack, otherwise all our backtraces
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// would end at __rust_try
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// would end at __rust_try
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if state & uw::_US_FORCE_UNWIND as c_int != 0 {
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if state & uw::_US_FORCE_UNWIND as c_int != 0 {
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return continue_unwind(exception_object, context)
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return continue_unwind(exception_object, context);
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}
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}
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true
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true
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} else if action == uw::_US_UNWIND_FRAME_STARTING as c_int {
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} else if action == uw::_US_UNWIND_FRAME_STARTING as c_int {
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@ -207,7 +209,9 @@ unsafe extern "C" fn rust_eh_personality(state: uw::_Unwind_State,
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// To preserve signatures of functions like _Unwind_GetLanguageSpecificData(), which
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// To preserve signatures of functions like _Unwind_GetLanguageSpecificData(), which
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// take only the context pointer, GCC personality routines stash a pointer to exception_object
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// take only the context pointer, GCC personality routines stash a pointer to exception_object
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// in the context, using location reserved for ARM's "scratch register" (r12).
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// in the context, using location reserved for ARM's "scratch register" (r12).
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uw::_Unwind_SetGR(context, uw::UNWIND_POINTER_REG, exception_object as uw::_Unwind_Ptr);
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uw::_Unwind_SetGR(context,
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uw::UNWIND_POINTER_REG,
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exception_object as uw::_Unwind_Ptr);
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// ...A more principled approach would be to provide the full definition of ARM's
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// ...A more principled approach would be to provide the full definition of ARM's
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// _Unwind_Context in our libunwind bindings and fetch the required data from there directly,
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// _Unwind_Context in our libunwind bindings and fetch the required data from there directly,
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// bypassing DWARF compatibility functions.
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// bypassing DWARF compatibility functions.
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@ -223,7 +227,8 @@ unsafe extern "C" fn rust_eh_personality(state: uw::_Unwind_State,
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} else {
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} else {
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match eh_action {
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match eh_action {
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EHAction::None => return continue_unwind(exception_object, context),
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EHAction::None => return continue_unwind(exception_object, context),
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EHAction::Cleanup(lpad) | EHAction::Catch(lpad) => {
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EHAction::Cleanup(lpad) |
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EHAction::Catch(lpad) => {
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uw::_Unwind_SetGR(context, UNWIND_DATA_REG.0, exception_object as uintptr_t);
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uw::_Unwind_SetGR(context, UNWIND_DATA_REG.0, exception_object as uintptr_t);
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uw::_Unwind_SetGR(context, UNWIND_DATA_REG.1, 0);
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uw::_Unwind_SetGR(context, UNWIND_DATA_REG.1, 0);
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uw::_Unwind_SetIP(context, lpad);
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uw::_Unwind_SetIP(context, lpad);
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@ -129,7 +129,8 @@ unsafe fn find_landing_pad(dc: &c::DISPATCHER_CONTEXT) -> Option<usize> {
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};
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};
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match find_eh_action(dc.HandlerData, &eh_ctx) {
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match find_eh_action(dc.HandlerData, &eh_ctx) {
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EHAction::None => None,
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EHAction::None => None,
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EHAction::Cleanup(lpad) | EHAction::Catch(lpad) => Some(lpad),
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EHAction::Cleanup(lpad) |
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EHAction::Catch(lpad) => Some(lpad),
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EHAction::Terminate => intrinsics::abort(),
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EHAction::Terminate => intrinsics::abort(),
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}
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}
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}
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}
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