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debuginfo: Emit different autotest debugger scripts depending on GDB version.

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This commit is contained in:
Michael Woerister 2014-08-20 12:53:50 +02:00
parent 6974b4f1b5
commit 849ae5d881
9 changed files with 210 additions and 35 deletions
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7
configure vendored
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@ -515,6 +515,13 @@ probe CFG_LUALATEX lualatex
probe CFG_GDB gdb
probe CFG_LLDB lldb
if [ ! -z "$CFG_GDB" ]
then
# Extract the version
CFG_GDB_VERSION=$($CFG_GDB --version 2>/dev/null | head -1)
putvar CFG_GDB_VERSION
fi
if [ ! -z "$CFG_LLDB" ]
then
# If CFG_LLDB_PYTHON_DIR is not already set from the outside and valid, try to read it from

1
mk/tests.mk
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@ -623,6 +623,7 @@ CTEST_COMMON_ARGS$(1)-T-$(2)-H-$(3) := \
--stage-id stage$(1)-$(2) \
--target $(2) \
--host $(3) \
--gdb-version="$(CFG_GDB_VERSION)" \
--android-cross-path=$(CFG_ANDROID_CROSS_PATH) \
--adb-path=$(CFG_ADB) \
--adb-test-dir=$(CFG_ADB_TEST_DIR) \

3
src/compiletest/common.rs
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@ -130,6 +130,9 @@ pub struct Config {
// Host triple for the compiler being invoked
pub host: String,
// Version of GDB
pub gdb_version: Option<String>,
// Path to the android tools
pub android_cross_path: Path,

19
src/compiletest/compiletest.rs
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@ -81,6 +81,7 @@ pub fn parse_config(args: Vec<String> ) -> Config {
optflag("", "jit", "run tests under the JIT"),
optopt("", "target", "the target to build for", "TARGET"),
optopt("", "host", "the host to build for", "HOST"),
optopt("", "gdb-version", "the version of GDB used", "MAJOR.MINOR"),
optopt("", "android-cross-path", "Android NDK standalone path", "PATH"),
optopt("", "adb-path", "path to the android debugger", "PATH"),
optopt("", "adb-test-dir", "path to tests for the android debugger", "PATH"),
@ -157,6 +158,7 @@ fn opt_path(m: &getopts::Matches, nm: &str) -> Path {
jit: matches.opt_present("jit"),
target: opt_str2(matches.opt_str("target")),
host: opt_str2(matches.opt_str("host")),
gdb_version: extract_gdb_version(matches.opt_str("gdb-version")),
android_cross_path: opt_path(matches, "android-cross-path"),
adb_path: opt_str2(matches.opt_str("adb-path")),
adb_test_dir: opt_str2(matches.opt_str("adb-test-dir")),
@ -376,3 +378,20 @@ pub fn make_metrics_test_closure(config: &Config, testfile: &Path) -> test::Test
runtest::run_metrics(config, testfile, mm)
})
}
fn extract_gdb_version(full_version_line: Option<String>) -> Option<String> {
match full_version_line {
Some(full_version_line) => {
let full_version_line = full_version_line.as_slice().trim();
let re = Regex::new(r"[^0-9]([0-9]\.[0-9])([^0-9]|$)").unwrap();
match re.captures(full_version_line) {
Some(captures) => {
Some(captures.at(1).to_string())
}
None => None
}
},
None => None
}
}

69
src/compiletest/header.rs
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@ -12,6 +12,8 @@
use common;
use util;
use std::from_str::FromStr;
pub struct TestProps {
// Lines that should be expected, in order, on standard out
pub error_patterns: Vec<String> ,
@ -142,23 +144,42 @@ fn ignore_stage(config: &Config) -> String {
format!("ignore-{}",
config.stage_id.as_slice().split('-').next().unwrap())
}
fn ignore_gdb(config: &Config, line: &str) -> bool {
if config.mode != common::DebugInfoGdb {
return false;
}
if parse_name_directive(line, "ignore-gdb") {
return true;
}
match config.gdb_version {
Some(ref actual_version) => {
if line.contains("min-gdb-version") {
let min_version = line.trim()
.split(' ')
.last()
.expect("Malformed GDB version directive");
// Ignore if actual version is smaller the minimum required
// version
gdb_version_to_int(actual_version.as_slice()) <
gdb_version_to_int(min_version.as_slice())
} else {
false
}
}
None => false
}
}
let val = iter_header(testfile, |ln| {
if parse_name_directive(ln, "ignore-test") {
false
} else if parse_name_directive(ln, ignore_target(config).as_slice()) {
false
} else if parse_name_directive(ln, ignore_stage(config).as_slice()) {
false
} else if config.mode == common::Pretty &&
parse_name_directive(ln, "ignore-pretty") {
false
} else if config.target != config.host &&
parse_name_directive(ln, "ignore-cross-compile") {
false
} else {
true
}
!parse_name_directive(ln, "ignore-test") &&
!parse_name_directive(ln, ignore_target(config).as_slice()) &&
!parse_name_directive(ln, ignore_stage(config).as_slice()) &&
!(config.mode == common::Pretty && parse_name_directive(ln, "ignore-pretty")) &&
!(config.target != config.host && parse_name_directive(ln, "ignore-cross-compile")) &&
!ignore_gdb(config, ln) &&
!(config.mode == common::DebugInfoLldb && parse_name_directive(ln, "ignore-lldb"))
});
!val
@ -278,3 +299,21 @@ pub fn parse_name_value_directive(line: &str, directive: &str)
None => None
}
}
pub fn gdb_version_to_int(version_string: &str) -> int {
let error_string = format!(
"Encountered GDB version string with unexpected format: {}",
version_string);
let error_string = error_string.as_slice();
let components: Vec<&str> = version_string.trim().split('.').collect();
if components.len() != 2 {
fail!("{}", error_string);
}
let major: int = FromStr::from_str(components[0]).expect(error_string);
let minor: int = FromStr::from_str(components[1]).expect(error_string);
return major * 1000 + minor;
}

48
src/compiletest/runtest.rs
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@ -466,11 +466,39 @@ fn run_debuginfo_gdb_test(config: &Config, props: &TestProps, testfile: &Path) {
.unwrap()
.to_string();
// write debugger script
let script_str = [
"set charset UTF-8".to_string(),
cmds,
"quit\n".to_string()
].connect("\n");
let mut script_str = String::with_capacity(2048);
script_str.push_str("set charset UTF-8\n");
script_str.push_str("show version\n");
match config.gdb_version {
Some(ref version) => {
if header::gdb_version_to_int(version.as_slice()) >
header::gdb_version_to_int("7.4") {
// Add the directory containing the pretty printers to
// GDB's script auto loading safe path ...
script_str.push_str(
format!("add-auto-load-safe-path {}\n",
rust_pp_module_abs_path.as_slice())
.as_slice());
// ... and also the test directory
script_str.push_str(
format!("add-auto-load-safe-path {}\n",
config.build_base.as_str().unwrap())
.as_slice());
}
}
_ => { /* nothing to do */ }
}
// Load the target executable
script_str.push_str(format!("file {}\n",
exe_file.as_str().unwrap())
.as_slice());
script_str.push_str(cmds.as_slice());
script_str.push_str("quit\n");
debug!("script_str = {}", script_str);
dump_output_file(config,
testfile,
@ -500,15 +528,7 @@ fn debugger() -> String {
vec!("-quiet".to_string(),
"-batch".to_string(),
"-nx".to_string(),
// Add the directory containing the pretty printers to
// GDB's script auto loading safe path ...
format!("-iex=add-auto-load-safe-path {}",
rust_pp_module_abs_path.as_slice()),
// ... and also the test directory
format!("-iex=add-auto-load-safe-path {}",
config.build_base.as_str().unwrap()),
format!("-command={}", debugger_script.as_str().unwrap()),
exe_file.as_str().unwrap().to_string());
format!("-command={}", debugger_script.as_str().unwrap()));
let proc_args = ProcArgs {
prog: debugger(),

16
src/etc/gdb_rust_pretty_printing.py
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@ -80,8 +80,7 @@ def rust_pretty_printer_lookup_function(val):
discriminant_name, discriminant_val = extract_discriminant_value(val)
return rust_pretty_printer_lookup_function(val[enum_members[discriminant_val]])
# No pretty printer has been found
return None
#=------------------------------------------------------------------------------
@ -99,10 +98,17 @@ class RustStructPrinter:
def children(self):
cs = []
for field in self.val.type.fields():
field_name = field.name;
field_name = field.name
# Normally the field name is used as a key to access the field value,
# because that's also supported in older versions of GDB...
field_key = field_name
if field_name == None:
field_name = ""
name_value_tuple = ( field_name, self.val[field] )
# ... but for fields without a name (as in tuples), we have to fall back
# to the newer method of using the field object directly as key. In
# older versions of GDB, this will just fail.
field_key = field
name_value_tuple = ( field_name, self.val[field_key] )
cs.append( name_value_tuple )
if self.hide_first_field:
@ -222,4 +228,4 @@ def get_field_at_index(val, index):
for field in val.type.fields():
if i == index:
return field
return None
return None

75
src/test/debuginfo/gdb-pretty-struct-and-enums-pre-gdb-7-7.rs Normal file
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@ -0,0 +1,75 @@
// Copyright 2013-2014 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
// This test uses only GDB Python API features which should be available in
// older versions of GDB too. A more extensive test can be found in
// gdb-pretty-struct-and-enums.rs
// ignore-tidy-linelength
// ignore-lldb
// ignore-android: FIXME(#10381)
// compile-flags:-g
// gdb-use-pretty-printer
// The following line actually doesn't have to do anything with pretty printing,
// it just tells GDB to print values on one line:
// gdb-command: set print pretty off
// gdb-command: rbreak zzz
// gdb-command: run
// gdb-command: finish
// gdb-command: print regular_struct
// gdb-check:$1 = RegularStruct = {the_first_field = 101, the_second_field = 102.5, the_third_field = false}
// gdb-command: print empty_struct
// gdb-check:$2 = EmptyStruct
// gdb-command: print c_style_enum1
// gdb-check:$3 = CStyleEnumVar1
// gdb-command: print c_style_enum2
// gdb-check:$4 = CStyleEnumVar2
// gdb-command: print c_style_enum3
// gdb-check:$5 = CStyleEnumVar3
struct RegularStruct {
the_first_field: int,
the_second_field: f64,
the_third_field: bool,
}
struct EmptyStruct;
enum CStyleEnum {
CStyleEnumVar1,
CStyleEnumVar2,
CStyleEnumVar3,
}
fn main() {
let regular_struct = RegularStruct {
the_first_field: 101,
the_second_field: 102.5,
the_third_field: false
};
let empty_struct = EmptyStruct;
let c_style_enum1 = CStyleEnumVar1;
let c_style_enum2 = CStyleEnumVar2;
let c_style_enum3 = CStyleEnumVar3;
zzz();
}
fn zzz() { () }

7
src/test/debuginfo/gdb-pretty-struct-and-enums.rs
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@ -14,6 +14,11 @@
// compile-flags:-g
// gdb-use-pretty-printer
// This test uses some GDB Python API features (e.g. accessing anonymous fields)
// which are only available in newer GDB version. The following directive will
// case the test runner to ignore this test if an older GDB version is used:
// min-gdb-version 7.7
// The following line actually doesn't have to do anything with pretty printing,
// it just tells GDB to print values on one line:
// gdb-command: set print pretty off
@ -164,4 +169,4 @@ fn main() {
zzz();
}
fn zzz() { () }
fn zzz() { () }