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08cc37dd04
LLVM 8.0 introduced some changes to let the Rust compiler emit DWARF variant parts. Before this change, the compiler would emit two types with the same name, and unfortunately gdb happens to pick the wrong one. So, this patch disables the test when using an older version of LLVM. gdb/testsuite/ChangeLog 2020-09-15 Tom Tromey <tromey@adacore.com> PR rust/26197: * lib/rust-support.exp (rust_llvm_version): New proc. * gdb.rust/simple.exp: Check rust_llvm_version.
389 lines
13 KiB
Plaintext
389 lines
13 KiB
Plaintext
# Copyright (C) 2016-2020 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# Test expression parsing and evaluation that requires Rust compiler.
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load_lib rust-support.exp
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if {[skip_rust_tests]} {
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continue
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}
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standard_testfile .rs
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if {[prepare_for_testing "failed to prepare" $testfile $srcfile {debug rust}]} {
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return -1
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}
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set line [gdb_get_line_number "set breakpoint here"]
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if {![runto ${srcfile}:$line]} {
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untested "could not run to breakpoint"
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return -1
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}
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gdb_test "print a" " = \\(\\)"
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gdb_test "ptype a" " = \\(\\)"
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gdb_test "print sizeof(a)" " = 0"
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gdb_test "print b" " = \\\[\\\]"
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gdb_test "ptype b" " = \\\[i32; 0\\\]"
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gdb_test "print *(&b as *const \[i32; 0\])" " = \\\[\\\]"
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gdb_test "print *(&b as *const \[i32; 0_0\])" " = \\\[\\\]"
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gdb_test "print c" " = 99"
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gdb_test "ptype c" " = i32"
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gdb_test "print sizeof(c)" " = 4"
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gdb_test "print c = 87" " = \\(\\)"
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gdb_test "print c" " = 87" "print after assignment"
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gdb_test "print c += 3" " = \\(\\)"
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gdb_test "print c" " = 90" "print after plus assignment"
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gdb_test "print c -= 90" " = \\(\\)"
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gdb_test "print c" " = 0" "print after minus assignment"
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gdb_test "print *&c" " = 0"
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gdb_test "print *(&c as &i32)" " = 0"
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gdb_test "print *(&c as *const i32)" " = 0"
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gdb_test "print *(&c as *mut i32)" " = 0"
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gdb_test "ptype &c as *mut i32" "\\*mut i32"
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gdb_test "print/c f\[0\]" " = 104 'h'"
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gdb_test "print j" " = simple::Unit"
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gdb_test "ptype j" " = struct simple::Unit"
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gdb_test "print j2" " = simple::Unit"
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gdb_test "ptype j2" " = struct simple::Unit"
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gdb_test "print simple::Unit" " = simple::Unit"
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gdb_test "print simple::Unit{}" " = simple::Unit"
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gdb_test "print f" " = \"hi bob\""
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gdb_test "print fslice" " = \"bob\""
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gdb_test "print &f\[3..\]" " = \"bob\""
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gdb_test "print g" " = \\(\\*mut \\\[u8; 6\\\]\\) $hex b\"hi bob\""
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gdb_test "ptype g" " = \\*mut \\\[u8; 6\\\]"
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gdb_test "print v" " = simple::Something::Three"
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gdb_test_sequence "ptype v" "" {
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" = enum simple::Something \\{"
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" One,"
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" Two,"
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" Three,"
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"\\}"
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}
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gdb_test "print w" " = \\\[1, 2, 3, 4\\\]"
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gdb_test "ptype w" " = \\\[i32; 4\\\]"
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gdb_test "print w\[2\]" " = 3"
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gdb_test "print w\[2\] @ 2" " = \\\[3, 4\\\]"
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gdb_test "print w_ptr\[2\]" " = 3"
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gdb_test "print fromslice" " = 3"
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gdb_test "print slice\[0\]" " = 3"
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gdb_test "print slice as &\[i32\]\[0\]" " = 3"
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gdb_test_sequence "ptype slice" "" {
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" = struct &\\\[i32\\\] \\{"
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" data_ptr: \\*mut i32,"
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" length: usize,"
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"\\}"
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}
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gdb_test_sequence "ptype &slice\[..\]" "" {
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" = struct &\\\[i32\\\] \\{"
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" data_ptr: \\*mut i32,"
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" length: usize,"
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"\\}"
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}
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gdb_test_sequence "ptype &b\[..\]" "" {
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" = struct &\\\[\\*gdb\\*\\\] \\{"
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" data_ptr: \\*mut i32,"
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" length: usize,"
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"\\}"
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}
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gdb_test "print x" " = \\(23, 25\\.5\\)"
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gdb_test "ptype x" " = \\(i32, f64\\)"
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gdb_test "print x as (i32,f64)" " = \\(23, 25\\.5\\)"
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gdb_test "print y" " = simple::HiBob \\{field1: 7, field2: 8\\}"
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gdb_test_sequence "ptype y" "" {
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" = struct simple::HiBob \\{"
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" field1: i32,"
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" field2: u64,"
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"\\}"
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}
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gdb_test "print y.field2" " = 8"
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gdb_test "print z" " = simple::ByeBob \\(7, 8\\)"
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gdb_test_sequence "ptype z" "" {
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" = struct simple::ByeBob \\("
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" i32,"
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" u64,"
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"\\)"
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}
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gdb_test "print z.1" " = 8"
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gdb_test "print univariant" " = simple::Univariant::Foo{a: 1}"
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gdb_test "print univariant.a" " = 1"
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gdb_test "print univariant_anon" " = simple::UnivariantAnon::Foo\\(1\\)"
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gdb_test "print univariant_anon.0" " = 1"
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gdb_test "print univariant_anon.sss" \
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"Attempting to access named field sss of tuple variant simple::UnivariantAnon::Foo, which has only anonymous fields"
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gdb_test_sequence "ptype simple::Univariant" "" {
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"type = enum simple::Univariant \\{"
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" Foo\\{a: u8\\},"
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"\\}"
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}
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gdb_test_sequence "ptype simple::UnivariantAnon" "" {
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"type = enum simple::UnivariantAnon \\{"
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" Foo\\(u8\\),"
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"\\}"
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}
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gdb_test_sequence "ptype simple::ByeBob" "" {
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" = struct simple::ByeBob \\("
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" i32,"
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" u64,"
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"\\)"
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}
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gdb_test "print simple::ByeBob(0xff, 5)" \
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" = simple::ByeBob \\(255, 5\\)"
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gdb_test "print simple::ByeBob\{field1: 0xff, field2:5\}" \
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"Struct expression applied to non-struct type"
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gdb_test "print simple::HiBob(0xff, 5)" \
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"Type simple::HiBob is not a tuple struct"
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gdb_test "print sizeof(simple::HiBob)" " = \[0-9\]+"
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gdb_test "print simple::HiBob + 5" \
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"Found type 'simple::HiBob', which can't be evaluated in this context"
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gdb_test "print nosuchsymbol" \
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"No symbol 'nosuchsymbol' in current context"
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gdb_test "print simple::HiBob{field1, field2}" \
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" = simple::HiBob \\{field1: 77, field2: 88\\}"
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gdb_test "print simple::HiBob{field1: 99, .. y}" \
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" = simple::HiBob \\{field1: 99, field2: 8\\}"
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gdb_test "print e" " = simple::MoreComplicated::Two\\(73\\)"
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gdb_test "print e2" \
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" = simple::MoreComplicated::Four\\{this: true, is: 8, a: 109 'm', struct_: 100, variant: 10\\}"
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gdb_test "print sizeof(e)" " = 24"
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gdb_test_sequence "ptype e" "" {
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" = enum simple::MoreComplicated \\{"
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" One,"
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" Two\\(i32\\),"
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" Three\\(simple::HiBob\\),"
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" Four\\{this: bool, is: u8, a: char, struct_: u64, variant: u32\\},"
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"\\}"
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}
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gdb_test "print e.0" " = 73"
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gdb_test "print e.1" \
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"Cannot access field 1 of variant simple::MoreComplicated::Two, there are only 1 fields"
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gdb_test "print e.foo" \
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"Attempting to access named field foo of tuple variant simple::MoreComplicated::Two, which has only anonymous fields"
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gdb_test "print e2.variant" " = 10"
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gdb_test "print e2.notexist" \
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"Could not find field notexist of struct variant simple::MoreComplicated::Four"
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gdb_test "print e2.0" \
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"Variant simple::MoreComplicated::Four is not a tuple variant"
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set pass_pattern " = simple::SpaceSaver::Nothing"
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set xfail_pattern " = simple::SpaceSaver::Thebox\\($decimal, 0x0\\)"
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gdb_test_multiple "print k" "" {
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-re "\[\r\n\]*(?:$pass_pattern)\[\r\n\]+$gdb_prompt $" {
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pass $gdb_test_name
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}
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-re "\[\r\n\]*(?:$xfail_pattern)\[\r\n\]+$gdb_prompt $" {
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xfail $gdb_test_name
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}
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}
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gdb_test "print l" " = simple::SpaceSaver::Thebox\\(9, $hex\\)"
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gdb_test "print *l.1" " = 1729"
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gdb_test "print diff2(3, 7)" " = -4"
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gdb_test "print self::diff2(8, 9)" " = -1"
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gdb_test "print ::diff2(23, -23)" " = 46"
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gdb_test "ptype diff2" "fn \\(i32, i32\\) -> i32"
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gdb_test "ptype empty" "fn \\(\\)"
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gdb_test "print (diff2 as fn(i32, i32) -> i32)(19, -2)" " = 21"
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gdb_test "print \"hello rust\"" " = \"hello rust.*\""
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gdb_test "print \"hello" "Unexpected EOF in string"
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gdb_test "print r##\"hello \" rust\"##" " = \"hello \\\\\" rust.*\""
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gdb_test "print r\"hello" "Unexpected EOF in string"
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gdb_test "print r###\"###hello\"" "Unexpected EOF in string"
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gdb_test "print r###\"###hello\"##" "Unexpected EOF in string"
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gdb_test "print r###\"hello###" "Unexpected EOF in string"
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gdb_test "print 0..5" " = .*::ops::Range.* \\{start: 0, end: 5\\}"
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gdb_test "print 0..=5" " = .*::ops::RangeInclusive.* \\{start: 0, end: 5\\}"
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gdb_test "print ..5" " = .*::ops::RangeTo.* \\{end: 5\\}"
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gdb_test "print ..=5" " = .*::ops::RangeToInclusive.* \\{end: 5\\}"
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gdb_test "print 5.." " = .*::ops::RangeFrom.* \\{start: 5\\}"
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gdb_test "print .." " = .*::ops::RangeFull"
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set pass_pattern \
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" = core::option::Option<\[a-z\]+::string::String>::Some\\(\[a-z\]+::string::String .*"
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set xfail_pattern \
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"( = <error reading variable>|That operation is not available on .*)"
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gdb_test_multiple "print str_some" "" {
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-re "\[\r\n\]*(?:$pass_pattern)\[\r\n\]+$gdb_prompt $" {
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pass $gdb_test_name
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}
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-re "\[\r\n\]*(?:$xfail_pattern)\[\r\n\]+$gdb_prompt $" {
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xfail $gdb_test_name
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}
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}
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set pass_pattern " = core::option::Option<\[a-z\]+::string::String>::None"
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gdb_test_multiple "print str_none" "" {
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-re "\[\r\n\]*(?:$pass_pattern)\[\r\n\]+$gdb_prompt $" {
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pass $gdb_test_name
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}
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-re "\[\r\n\]*(?:$xfail_pattern)\[\r\n\]+$gdb_prompt $" {
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xfail $gdb_test_name
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}
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}
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gdb_test "print int_some" " = core::option::Option<u8>::Some\\(1\\)"
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gdb_test "print int_none" " = core::option::Option<u8>::None"
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gdb_test "print box_some" " = core::option::Option<\[a-z:\]*Box<u8>>::Some\\(.*\\)"
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gdb_test "print box_none" " = core::option::Option<\[a-z:\]*Box<u8>>::None"
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set pass_pattern \
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" = simple::NonZeroOptimized::Value\\(\[a-z\]+::string::String .*"
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gdb_test_multiple "print custom_some" "" {
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-re "\[\r\n\]*(?:$pass_pattern)\[\r\n\]+$gdb_prompt $" {
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pass $gdb_test_name
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}
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-re "\[\r\n\]*(?:$xfail_pattern)\[\r\n\]+$gdb_prompt $" {
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xfail $gdb_test_name
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}
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}
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set pass_pattern " = simple::NonZeroOptimized::Empty"
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gdb_test_multiple "print custom_none" "" {
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-re "\[\r\n\]*(?:$pass_pattern)\[\r\n\]+$gdb_prompt $" {
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pass $gdb_test_name
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}
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-re "\[\r\n\]*(?:$xfail_pattern)\[\r\n\]+$gdb_prompt $" {
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xfail $gdb_test_name
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}
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}
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gdb_test "print st" \
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" = simple::StringAtOffset {field1: \"hello\", field2: 1, field3: \"world\"}"
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proc test_one_slice {svar length base range} {
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with_test_prefix $range {
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global hex
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set result " = &\\\[.*\\\] \\{data_ptr: $hex, length: $length\\}"
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gdb_test "print $svar" $result
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gdb_test "print &${base}\[${range}\]" $result
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}
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}
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test_one_slice slice 1 w 2..3
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test_one_slice slice 1 w 2..=2
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test_one_slice slice2 1 slice 0..1
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test_one_slice slice2 1 slice 0..=0
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test_one_slice all1 4 w ..
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test_one_slice all2 1 slice ..
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test_one_slice from1 3 w 1..
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test_one_slice from2 0 slice 1..
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test_one_slice to1 3 w ..3
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test_one_slice to1 3 w ..=2
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test_one_slice to2 1 slice ..1
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test_one_slice to2 1 slice ..=0
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gdb_test "print w\[2..3\]" "Can't take slice of array without '&'"
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gdb_test_sequence "complete print y.f" "" \
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{"print y.field1" "print y.field2"}
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gdb_test_sequence "complete print y." "" \
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{"print y.field1" "print y.field2"}
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# Unimplemented, but we can at least test the parser productions.
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gdb_test "print (1,2,3)" "Tuple expressions not supported yet"
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gdb_test "print (1,)" "Tuple expressions not supported yet"
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gdb_test "print (1)" " = 1"
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gdb_test "print 23..97.0" "Range expression with different types"
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gdb_test "print (*parametrized.next.val)" \
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" = simple::ParametrizedStruct<i32> {next: simple::ParametrizedEnum<\[a-z:\]*Box<simple::ParametrizedStruct<i32>>>::Empty, value: 1}"
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gdb_test "print parametrized.next.val" \
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" = \\(\\*mut simple::ParametrizedStruct<i32>\\) $hex"
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gdb_test "print parametrized" \
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" = simple::ParametrizedStruct<i32> \\{next: simple::ParametrizedEnum<\[a-z:\]*Box<simple::ParametrizedStruct<i32>>>::Val\\{val: $hex\\}, value: 0\\}"
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gdb_test_sequence "ptype/o SimpleLayout" "" {
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"/\\* offset | size \\*/ type = struct simple::SimpleLayout {"
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"/\\* 0 | 2 \\*/ f1: u16,"
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"/\\* 2 | 2 \\*/ f2: u16,"
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""
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" /\\* total size \\(bytes\\): 4 \\*/"
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" }"
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}
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gdb_test "print nonzero_offset" " = simple::EnumWithNonzeroOffset {a: core::option::Option<u8>::Some\\(1\\), b: core::option::Option<u8>::None}"
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# PR rust/23626 - this used to crash. Note that the results are
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# fairly lax because most existing versions of Rust (those before the
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# DW_TAG_variant patches) do not emit what gdb wants here; and there
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# was little point fixing gdb to cope with these cases as the fixed
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# compilers will be available soon
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gdb_test "print empty_enum_value" \
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" = simple::EmptyEnum.*"
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gdb_test "ptype empty_enum_value" "simple::EmptyEnum.*"
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# Just make sure these don't crash, for the same reason.
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gdb_test "print empty_enum_value.0" ""
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gdb_test "print empty_enum_value.something" ""
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load_lib gdb-python.exp
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if {[skip_python_tests]} {
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continue
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}
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gdb_test "python print(gdb.lookup_type('simple::HiBob'))" "simple::HiBob"
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gdb_test_no_output "python e = gdb.parse_and_eval('e')" \
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"get value of e for python"
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gdb_test "python print(len(e.type.fields()))" "2"
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gdb_test "python print(e.type.fields()\[0\].artificial)" "True"
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gdb_test "python print(e.type.fields()\[1\].name)" "Two"
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gdb_test "python print(e.type.dynamic)" "False"
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# Before LLVM 8, the rust compiler would emit two types named
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# "simple::MoreComplicated" -- the C-like "underlying" enum type and
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# the Rust enum. lookup_type seems to get the former, which isn't
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# very useful. With later versions of LLVM, this test works
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# correctly.
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set v [split [rust_llvm_version] .]
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if {[lindex $v 0] >= 8} {
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gdb_test "python print(gdb.lookup_type('simple::MoreComplicated').dynamic)" \
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"True"
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}
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