a33ccfc7af
This adds support for ptype/o to the Rust language code. By default, the Rust compiler reorders fields to reduce padding. So, the Rust language code sorts the fields by offset before printing. This may yield somewhat odd-looking results, but it is faithful to "what really happens", and might be useful when doing lower-level debugging. The reordering can be disabled using #[repr(c)]; ptype/o might be more useful in this case. gdb/ChangeLog 2018-06-26 Tom Tromey <tom@tromey.com> PR rust/22574: * typeprint.c (whatis_exp): Allow ptype/o for Rust. * rust-lang.c (rust_print_struct_def): Add podata parameter. Update. (rust_internal_print_type): Add podata parameter. (rust_print_type): Update. gdb/testsuite/ChangeLog 2018-06-26 Tom Tromey <tom@tromey.com> PR rust/22574: * gdb.rust/simple.exp (test_one_slice): Add ptype/o tests. * gdb.rust/simple.rs (struct SimpleLayout): New.
312 lines
10 KiB
Plaintext
312 lines
10 KiB
Plaintext
# Copyright (C) 2016-2018 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"
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gdb_test "print c += 3" " = \\(\\)"
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gdb_test "print c" " = 90"
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gdb_test "print c -= 90" " = \\(\\)"
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gdb_test "print c" " = 0"
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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 "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" " = \\(u8 \\(\\*\\)\\\[6\\\]\\) $hex b\"hi bob\""
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gdb_test "ptype g" " = 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: 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: 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: 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_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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gdb_test "print k" " = simple::SpaceSaver::Nothing"
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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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gdb_test "print str_some" \
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" = core::option::Option<\[a-z\]+::string::String>::Some\\(\[a-z\]+::string::String .*"
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gdb_test "print str_none" " = core::option::Option<\[a-z\]+::string::String>::None"
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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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gdb_test "print custom_some" \
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" = simple::NonZeroOptimized::Value\\(\[a-z\]+::string::String .*"
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gdb_test "print custom_none" " = simple::NonZeroOptimized::Empty"
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proc test_one_slice {svar length base 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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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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" = \\(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 "print u" " = simple::Union {f1: -1, f2: 255}"
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gdb_test_sequence "ptype/o Union" "" {
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"/\\* offset | size \\*/ type = union simple::Union {"
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"/\\* 1 \\*/ f1: i8,"
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"/\\* 1 \\*/ f2: u8,"
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""
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" /\\* total size \\(bytes\\): 1 \\*/"
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" }"
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}
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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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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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