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# Copyright (C) 1993-2018 Free Software Foundation, Inc.
#
# This file is part of the GNU Binutils.
#
# This file 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, write to the Free Software
# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
# MA 02110-1301, USA.
# True if the object format is known to be ELF.
#
proc is_elf_format {} {
# config.sub for these targets curiously transforms a target doublet
# ending in -elf to -none. eg. m68hc12-elf to m68hc12-unknown-none
# They are always elf.
if { [istarget m68hc1*-*] || [istarget s12z*-*] || [istarget xgate-*] } {
return 1;
}
# vxworks (and windiss) excluded due to number of ELF tests that need
# modifying to pass on those targets.
# && ![istarget *-*-vxworks*]
# && ![istarget *-*-windiss*]
if { ![istarget *-*-chorus*]
&& ![istarget *-*-cloudabi*]
&& ![istarget *-*-eabi*]
&& ![istarget *-*-*elf*]
&& ![istarget *-*-*freebsd*]
&& ![istarget *-*-fuchsia*]
&& ![istarget *-*-gnu*]
&& ![istarget *-*-irix5*]
&& ![istarget *-*-irix6*]
&& ![istarget *-*-kaos*]
&& ![istarget *-*-*linux*]
&& ![istarget *-*-lynxos*]
&& ![istarget *-*-nacl*]
&& ![istarget *-*-netbsd*]
&& ![istarget *-*-nto*]
&& ![istarget *-*-openbsd*]
&& ![istarget *-*-rtems*]
&& ![istarget *-*-solaris2*]
&& ![istarget *-*-sysv4*]
&& ![istarget *-*-unixware*]
&& ![istarget *-*-wasm32*]
&& ![istarget avr-*-*]
&& ![istarget hppa*64*-*-hpux*]
&& ![istarget ia64-*-hpux*] } {
return 0
}
if { [istarget *-*-linux*ecoff*]
|| [istarget *-*-rtemscoff*] } {
return 0
}
if { ![istarget *-*-netbsdelf*]
&& ( [istarget vax-*-netbsd*]
|| [istarget ns32k-*-netbsd*]) } {
return 0
}
if { [istarget arm-*-openbsd*]
|| [istarget ns32k-*-openbsd*]
|| [istarget vax-*-openbsd*] } {
return 0
}
return 1
}
# True if the object format is known to be a.out.
#
proc is_aout_format {} {
if { [istarget *-*-*aout*]
|| [istarget *-*-bsd*]
|| [istarget *-*-msdos*]
|| [istarget ns32k-*-*]
|| [istarget pdp11-*-*]
|| [istarget vax-*-netbsd] } {
return 1
}
return 0
}
# True if the object format is known to be PE COFF.
#
proc is_pecoff_format {} {
if { ![istarget *-*-mingw*]
&& ![istarget *-*-cygwin*]
&& ![istarget *-*-cegcc*]
&& ![istarget *-*-pe*] } {
return 0
}
return 1
}
# True if the object format is known to be 64-bit ELF.
#
proc is_elf64 { binary_file } {
global READELF
global READELFFLAGS
set readelf_size ""
catch "exec $READELF $READELFFLAGS -h $binary_file > readelf.out" got
if ![string match "" $got] then {
return 0
}
if { ![regexp "\n\[ \]*Class:\[ \]*ELF(\[0-9\]+)\n" \
[file_contents readelf.out] nil readelf_size] } {
return 0
}
if { $readelf_size == "64" } {
return 1
}
return 0
}
# True if the target matches TARGET, specified as a TCL procedure if
# in square brackets or as machine triplet otherwise.
#
proc match_target { target } {
if [string match {\[*\]} $target] {
return $target
} else {
return [istarget $target]
}
}
# True if the ELF target supports STB_GNU_UNIQUE with the ELF header's
# OSABI field set to ELFOSABI_GNU.
#
# This generally depends on the target OS only, however there are a
# number of exceptions for bare metal targets as follows. The MSP430
# and Visium targets set OSABI to ELFOSABI_STANDALONE and cannot
# support STB_GNU_UNIQUE. Likewise non-EABI ARM targets set OSABI to
# ELFOSABI_ARM, and TI C6X targets to ELFOSABI_C6000_*. Finally
# rather than `bfd_elf_final_link' AM33/2.0, D30V, DLX, and
# picoJava targets use `_bfd_generic_final_link', which does not
# support STB_GNU_UNIQUE symbol binding causing assertion failures.
#
proc supports_gnu_unique {} {
if { [istarget *-*-gnu*]
|| [istarget *-*-linux*]
|| [istarget *-*-nacl*] } {
return 1
}
if { [istarget "arm*-*-*eabi*"] } {
return 1
}
if { [istarget "wasm32*-*-*"] } {
return 1
}
if { ![istarget "*-*-elf*"] } {
return 0
}
if { [istarget "arm*-*-*"]
|| [istarget "msp430-*-*"]
|| [istarget "tic6x-*-*"]
|| [istarget "visium-*-*"] } {
return 0
}
if { [istarget "am33_2.0-*-*"]
|| [istarget "d30v-*-*"]
|| [istarget "dlx-*-*"]
|| [istarget "pj*-*-*"] } {
return 0
}
return 1
}
# True for targets that do not sort .symtab as per the ELF standard.
# ie. any that have mips_elf32_be_vec, mips_elf32_le_vec,
# mips_elf32_n_be_vec or mips_elf32_n_le_vec as the primary bfd target
# vector in config.bfd. When syncing with config.bfd, don't forget that
# earlier case-matches trump later ones.
proc is_bad_symtab {} {
if { ![istarget "mips*-*-*"] } {
return 0;
}
if { [istarget "*-*-chorus*"]
|| [istarget "*-*-irix5*"]
|| [istarget "*-*-irix6*"]
|| [istarget "*-*-none"]
|| [istarget "*-*-rtems*"]
|| [istarget "*-*-windiss"] } {
return 1;
}
if { [istarget "*-*-elf*"]
&& ![istarget "*-sde-*"]
&& ![istarget "*-mti-*"]
&& ![istarget "*-img-*"] } {
return 1;
}
if { [istarget "*-*-openbsd*"]
&& ![istarget "mips64*-*-*"] } {
return 1;
}
return 0;
}
# Compare two files line-by-line. FILE_1 is the actual output and FILE_2
# is the expected output. Ignore blank lines in either file.
#
# FILE_2 is a series of regexps, comments and # directives. The directives
# are:
#
# #pass
# Treat the test as a PASS if everything up till this point has
# matched. Ignore any remaining lines in either FILE_1 or FILE_2.
#
# #failif
# Reverse the sense of the test: expect differences to exist.
#
# #...
# REGEXP
# Skip all lines in FILE_1 until the first that matches REGEXP.
#
# Other # lines are comments. Regexp lines starting with the `!' character
# specify inverse matching (use `\!' for literal matching against a leading
# `!'). Skip empty lines in both files.
#
# The first optional argument is a list of regexp substitutions of the form:
#
# EXP1 SUBSPEC1 EXP2 SUBSPEC2 ...
#
# This tells the function to apply each regexp substitution EXPi->SUBSPECi
# in order to every line of FILE_2.
#
# Return nonzero if differences exist.
proc regexp_diff { file_1 file_2 args } {
set eof -1
set end_1 0
set end_2 0
set differences 0
set diff_pass 0
set fail_if_match 0
set ref_subst ""
if { [llength $args] > 0 } {
set ref_subst [lindex $args 0]
}
if { [llength $args] > 1 } {
perror "Too many arguments to regexp_diff"
return 1
}
if [file exists $file_1] then {
set file_a [open $file_1 r]
} else {
perror "$file_1 doesn't exist"
return 1
}
if [file exists $file_2] then {
set file_b [open $file_2 r]
} else {
perror "$file_2 doesn't exist"
close $file_a
return 1
}
verbose " Regexp-diff'ing: $file_1 $file_2" 2
while { 1 } {
set line_a ""
set line_b ""
while { [string length $line_a] == 0 } {
# Ignore blank line in FILE_1.
if { [gets $file_a line_a] == $eof } {
set end_1 1
break
}
}
while { [string length $line_b] == 0 || [string match "#*" $line_b] } {
if { [string match "#pass" $line_b] } {
set end_2 1
set diff_pass 1
break
} elseif { [string match "#failif" $line_b] } {
send_log "fail if no difference\n"
verbose "fail if no difference" 3
set fail_if_match 1
} elseif { [string match "#..." $line_b] } {
if { [gets $file_b line_b] == $eof } {
set end_2 1
set diff_pass 1
break
}
set negated [expr { [string index $line_b 0] == "!" }]
set line_bx [string range $line_b $negated end]
set n [expr { $negated ? "! " : "" }]
# Substitute on the reference.
foreach {name value} $ref_subst {
regsub -- $name $line_bx $value line_bx
}
verbose "looking for $n\"^$line_bx$\"" 3
while { [expr [regexp "^$line_bx$" "$line_a"] == $negated] } {
verbose "skipping \"$line_a\"" 3
if { [gets $file_a line_a] == $eof } {
set end_1 1
break
}
}
break
}
if { [gets $file_b line_b] == $eof } {
set end_2 1
break
}
}
if { $diff_pass } {
break
} elseif { $end_1 && $end_2 } {
break
} elseif { $end_1 } {
send_log "extra regexps in $file_2 starting with \"^$line_b$\"\nEOF from $file_1\n"
verbose "extra regexps in $file_2 starting with \"^$line_b$\"\nEOF from $file_1" 3
set differences 1
break
} elseif { $end_2 } {
send_log "extra lines in $file_1 starting with \"^$line_a$\"\nEOF from $file_2\n"
verbose "extra lines in $file_1 starting with \"^$line_a$\"\nEOF from $file_2\n" 3
set differences 1
break
} else {
set negated [expr { [string index $line_b 0] == "!" }]
set line_bx [string range $line_b $negated end]
set n [expr { $negated ? "! " : "" }]
set s [expr { $negated ? " " : "" }]
# Substitute on the reference.
foreach {name value} $ref_subst {
regsub -- $name $line_bx $value line_bx
}
verbose "regexp $n\"^$line_bx$\"\nline \"$line_a\"" 3
if { [expr [regexp "^$line_bx$" "$line_a"] == $negated] } {
send_log "regexp_diff match failure\n"
send_log "regexp $n\"^$line_bx$\"\nline $s\"$line_a\"\n"
verbose "regexp_diff match failure\n" 3
set differences 1
}
}
}
if { $differences == 0 && !$diff_pass && [eof $file_a] != [eof $file_b] } {
send_log "$file_1 and $file_2 are different lengths\n"
verbose "$file_1 and $file_2 are different lengths" 3
set differences 1
}
if { $fail_if_match } {
if { $differences == 0 } {
set differences 1
} else {
set differences 0
}
}
close $file_a
close $file_b
return $differences
}
|