mirror of
https://github.com/espressif/binutils-gdb.git
synced 2025-07-28 12:24:04 +08:00
ea17b3d59f
On openSUSE Tumbleweed I ran into: ... (gdb) ptype outstring_func.part^M No symbol "outstring_func" in current context.^M (gdb) FAIL: gdb.fortran/call-no-debug.exp: ptype outstring_func.part ... while on openSUSE Leap 15.2 I have instead: ... (gdb) ptype string_func_^M type = <unknown return type> ()^M (gdb) PASS: gdb.fortran/call-no-debug.exp: ptype string_func_ ... The difference is caused by the result for "info function string_func", which is this for the latter: ... (gdb) info function string_func^M All functions matching regular expression "string_func":^M ^M Non-debugging symbols:^M 0x000000000040089c string_func_^M ... but this for the former: ... (gdb) info function string_func^M All functions matching regular expression "string_func":^M ^M Non-debugging symbols:^M 0x00000000004012bb string_func_^M 0x00007ffff7bac5b0 outstring_func.part^M 0x00007ffff7bb1a00 outstring_func.part^M ... The extra symbols are part of glibc: ... $ nm /lib64/libc.so.6 | grep string_func 00000000000695b0 t outstring_func.part.0 000000000006ea00 t outstring_func.part.0 ... If glibc debug info is installed, we get instead: ... (gdb) info function string_func^M All functions matching regular expression "string_func":^M ^M File /usr/src/debug/glibc-2.33-9.1.x86_64/stdio-common/vfprintf-internal.c:^M 236: static int outstring_func(int, size_t, const unsigned int *, FILE *);^M ^M File vfprintf-internal.c:^M 236: static int outstring_func(int, size_t, const unsigned char *, FILE *);^M ^M Non-debugging symbols:^M 0x00000000004012bb string_func_^M ... and the FAIL doesn't trigger. Fix this by calling "info function string_func" before starting the exec, such that only symbols of the exec are taken into account. Tested on x86_64-linux. gdb/testsuite/ChangeLog: 2021-09-01 Tom de Vries <tdevries@suse.de> * gdb.fortran/call-no-debug.exp: Avoid shared lib symbols for find_mangled_name calls.
108 lines
3.7 KiB
Plaintext
108 lines
3.7 KiB
Plaintext
# Copyright 2020-2021 Free Software Foundation, Inc.
|
|
|
|
# This program is free software; you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation; either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/> .
|
|
|
|
# Test calling Fortran functions that are compiled without debug
|
|
# information.
|
|
|
|
if {[skip_fortran_tests]} { return -1 }
|
|
|
|
standard_testfile call-no-debug-prog.f90 call-no-debug-func.f90
|
|
load_lib fortran.exp
|
|
|
|
if {[prepare_for_testing_full "failed to prepare" \
|
|
[list ${binfile} [list debug f90] \
|
|
$srcfile [list debug f90] \
|
|
$srcfile2 [list nodebug f90]]]} {
|
|
return -1
|
|
}
|
|
|
|
# Find a possibly mangled version of NAME, a function we want to call
|
|
# that has no debug information available. We hope that the mangled
|
|
# version of NAME contains the pattern NAME, and so we use 'info
|
|
# functions' to find a possible suitable symbol.
|
|
#
|
|
# If no suitable function is found then return the empty string.
|
|
proc find_mangled_name { name } {
|
|
global hex gdb_prompt
|
|
|
|
set into_non_debug_symbols false
|
|
set symbol_name "*unknown*"
|
|
gdb_test_multiple "info function $name" "" {
|
|
-re ".*Non-debugging symbols:\r\n" {
|
|
set into_non_debug_symbols true
|
|
exp_continue
|
|
}
|
|
-re "$hex.*\[ \t\]+(\[^\r\n\]+)\r\n" {
|
|
set symbol_name $expect_out(1,string)
|
|
exp_continue
|
|
}
|
|
-re "^$gdb_prompt $" {
|
|
# Done.
|
|
}
|
|
}
|
|
|
|
# If we couldn't find a suitable symbol name return the empty
|
|
# string.
|
|
if { $symbol_name == "*unknown*" } {
|
|
return ""
|
|
}
|
|
|
|
return $symbol_name
|
|
}
|
|
|
|
# Sample before before starting the exec, in order to avoid picking up symbols
|
|
# from shared libs.
|
|
set some_func [find_mangled_name "some_func"]
|
|
set string_func [find_mangled_name "string_func"]
|
|
|
|
if ![fortran_runto_main] {
|
|
untested "could not run to main"
|
|
return -1
|
|
}
|
|
|
|
# Call the function SOME_FUNC, that takes a single integer and returns
|
|
# an integer. As the function has no debug information then we have
|
|
# to pass the integer argument as '&1' so that GDB will send the
|
|
# address of an integer '1' (as Fortran arguments are pass by
|
|
# reference).
|
|
set symbol_name $some_func
|
|
if { $symbol_name == "" } {
|
|
untested "couldn't find suitable name for 'some_func'"
|
|
} else {
|
|
gdb_test "ptype ${symbol_name}" "type = <unknown return type> \\(\\)"
|
|
gdb_test "print ${symbol_name} (&1)" \
|
|
"'${symbol_name}' has unknown return type; cast the call to its declared return type"
|
|
gdb_test "print (integer) ${symbol_name} (&1)" " = 2"
|
|
}
|
|
|
|
# Call the function STRING_FUNC which takes an assumed shape character
|
|
# array (i.e. a string), and returns an integer.
|
|
#
|
|
# At least for gfortran, passing the string will pass both the data
|
|
# pointer and an artificial argument, the length of the string.
|
|
#
|
|
# The compiled program is expecting the address of the string, so we
|
|
# prefix that argument with '&', but the artificial length parameter
|
|
# is pass by value, so there's no need for '&' in that case.
|
|
set symbol_name $string_func
|
|
if { $symbol_name == "" } {
|
|
untested "couldn't find suitable name for 'string_func'"
|
|
} else {
|
|
gdb_test "ptype ${symbol_name}" "type = <unknown return type> \\(\\)"
|
|
gdb_test "print ${symbol_name} (&'abcdefg', 3)" \
|
|
"'${symbol_name}' has unknown return type; cast the call to its declared return type"
|
|
gdb_test "call (integer) ${symbol_name} (&'abcdefg', 3)" " abc\r\n\\\$\\d+ = 0"
|
|
}
|