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Tom Tromey
8bbb62f849
Bug #52452 notes some debuginfo test regressions when moving to gdb 8.1. This series will also cause versions of gdb before 8.2 to fail when a recent LLVM is used -- DW_TAG_variant_part support was not added until 8.2. This patch updates one of the builders to a later version of Ubuntu, which comes with gdb 8.2. It updates the relevant tests to require both a new-enough LLVM and a new-enough gdb; the subsequent patch arranges to continue testing the fallback mode. The "gdbg" results are removed from these tests because the tests now require a rust-enabled gdb. If you read closely, you'll see that some of the lldb results in this patch still look a bit strange. This will be addressed in a subsequent patch; I believe the fix is to disable the Python pretty-printers when lldb is rust-enabled.
90 lines
3.0 KiB
Rust
90 lines
3.0 KiB
Rust
// Copyright 2013-2014 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// ignore-tidy-linelength
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// Require LLVM with DW_TAG_variant_part and a gdb and lldb that can
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// read it.
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// min-system-llvm-version: 7.0
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// min-gdb-version: 8.2
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// rust-lldb
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// compile-flags:-g
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// === GDB TESTS ===================================================================================
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// gdb-command:run
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// gdb-command:print *the_a
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// gdbr-check:$1 = unique_enum::ABC::TheA{x: 0, y: 8970181431921507452}
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// gdb-command:print *the_b
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// gdbr-check:$2 = unique_enum::ABC::TheB(0, 286331153, 286331153)
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// gdb-command:print *univariant
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// gdbr-check:$3 = unique_enum::Univariant::TheOnlyCase(123234)
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// === LLDB TESTS ==================================================================================
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// lldb-command:run
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// lldb-command:print *the_a
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// lldbr-check:(unique_enum::ABC::TheA) *the_a = TheA { TheA: 0, TheB: 8970181431921507452 }
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// lldb-command:print *the_b
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// lldbr-check:(unique_enum::ABC::TheB) *the_b = { = 0 = 286331153 = 286331153 }
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// lldb-command:print *univariant
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// lldbr-check:(unique_enum::Univariant) *univariant = { TheOnlyCase = { = 123234 } }
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#![allow(unused_variables)]
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#![feature(box_syntax)]
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#![feature(omit_gdb_pretty_printer_section)]
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#![omit_gdb_pretty_printer_section]
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// The first element is to ensure proper alignment, irrespective of the machines word size. Since
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// the size of the discriminant value is machine dependent, this has be taken into account when
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// datatype layout should be predictable as in this case.
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enum ABC {
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TheA { x: i64, y: i64 },
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TheB (i64, i32, i32),
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}
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// This is a special case since it does not have the implicit discriminant field.
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enum Univariant {
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TheOnlyCase(i64)
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}
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fn main() {
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// In order to avoid endianness trouble all of the following test values consist of a single
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// repeated byte. This way each interpretation of the union should look the same, no matter if
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// this is a big or little endian machine.
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// 0b0111110001111100011111000111110001111100011111000111110001111100 = 8970181431921507452
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// 0b01111100011111000111110001111100 = 2088533116
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// 0b0111110001111100 = 31868
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// 0b01111100 = 124
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let the_a: Box<_> = box ABC::TheA { x: 0, y: 8970181431921507452 };
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// 0b0001000100010001000100010001000100010001000100010001000100010001 = 1229782938247303441
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// 0b00010001000100010001000100010001 = 286331153
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// 0b0001000100010001 = 4369
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// 0b00010001 = 17
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let the_b: Box<_> = box ABC::TheB (0, 286331153, 286331153);
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let univariant: Box<_> = box Univariant::TheOnlyCase(123234);
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zzz(); // #break
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}
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fn zzz() {()}
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