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gdb/testsuite: Use -J option when compiling Fortran tests

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When compiling Fortran tests (e.g. gdb.fortran/info-modules.exp), the
Fotran compile produces .mod files.  These files contain details of
compiled modules that are then consumed by the compiler when compiling
other files that USE a module.

Currently the compiler writes the .mod files into its current
directory, so for us this turns out to be 'build/gdb/testsuite/'.
This means that .mod files can be shared between tests, which seems
against the spirit of the GDB testsuite; source files should be
compiled fresh for each test.

This commit adds the -J option to the compiler flags whenever we
compile a Fortran file, this option tells the compiler where to write,
and look for, .mod files.

After this commit there was one Fortran test that needed fixing, with
that fix in place all of the Fortran tests pass again, but now the
.mod files are now produced in the per-test output directories.

gdb/testsuite/ChangeLog:

	* lib/gdb.exp (gdb_compile): Add -J compiler option when building
	Fortran tests.
	* gdb.mi/mi-fortran-modules.exp: Compile source files in correct
	order.

Change-Id: I99444cf22d80e320093d3f3ed9abb8825f378e0b
This commit is contained in:
Andrew Burgess 2019-11-27 21:51:35 +00:00
parent 36c8fb93c9
commit 8d70a9f093
3 changed files with 18 additions and 1 deletions
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7
gdb/testsuite/ChangeLog
View file

@ -1,3 +1,10 @@
2019-12-04 Andrew Burgess <andrew.burgess@embecosm.com>
* lib/gdb.exp (gdb_compile): Add -J compiler option when building
Fortran tests.
* gdb.mi/mi-fortran-modules.exp: Compile source files in correct
order.
2019-12-04 Andrew Burgess <andrew.burgess@embecosm.com>
* gdb.fortran/type-kinds.exp (test_cast_1_to_type_kind): Handle

2
gdb/testsuite/gdb.mi/mi-fortran-modules.exp
View file

@ -22,7 +22,7 @@ set MIFLAGS "-i=mi"
standard_testfile "mi-fortran-modules.f90" "mi-fortran-modules-2.f90"
if {[prepare_for_testing "failed to prepare" ${testfile} \
[list $srcfile $srcfile2] {debug f90}]} {
[list $srcfile2 $srcfile] {debug f90}]} {
return -1
}

10
gdb/testsuite/lib/gdb.exp
View file

@ -3719,6 +3719,16 @@ proc gdb_compile {source dest type options} {
} else {
set new_options [universal_compile_options]
}
# Place (and look for) Fortran `.mod` files in the output
# directory for this specific test.
if {[lsearch -exact $options f77] != -1 \
|| [lsearch -exact $options f90] != -1 } {
# Fortran compile.
set mod_path [standard_output_file ""]
lappend new_options "additional_flags=-J${mod_path}"
}
set shlib_found 0
set shlib_load 0
set getting_compiler_info 0