Hi!
On 2022-10-10T16:31:26+0100, Gaius Mulley via Gcc-patches
<gcc-patches@gcc.gnu.org> wrote:
> Here are the dejagnu expect library scripts for the gm2
> testsuite.
This (or some variant thereof; haven't checked), became part of
commit r13-4704-g1eee94d351774cdc2efc8ee508b82d065184c6ee
"Merge modula-2 front end onto gcc".
For build-tree testing ('$gccpath != ""'; such as standard 'make check'),
'gm2_link_flags' takes care to set up paths to a number of libraries that
may be necessary:
> --- /dev/null 2022-08-24 16:22:16.888000070 +0100
> +++ gcc-git-devel-modula2/gcc/testsuite/lib/gm2.exp 2022-10-07
> 20:21:18.718097775 +0100
> +set gm2_link_libraries "m2pim m2iso";
> +# gm2_link_flags - detects the whereabouts of libraries (-lstdc++).
> +#
> +
> +proc gm2_link_flags { paths } {
> + global srcdir;
> + global ld_library_path;
> + global gccpath;
> + global gm2_link_libraries;
> +
> + set gccpath ${paths}
> + set libio_dir ""
> + set flags ""
> + set ld_library_path "."
> +
> + set shlib_ext [get_shlib_extension]
> + verbose "shared lib extension: $shlib_ext"
> +
> + if { $gccpath == "" } {
> + global tool_root_dir
> +
> + set libstdcpp [lookfor_file ${tool_root_dir} libstdc++]
> + if { $libstdcpp != "" } {
> + append flags "-L${libstdcpp} "
> + append ld_library_path ":${libstdcpp}"
> + }
> + } else {
> + if [file exists "${gccpath}/lib/libstdc++.a"] {
> + append ld_library_path ":${gccpath}/lib"
> + }
> + if [file exists "${gccpath}/libstdc++/libstdc++.a"] {
> + append flags "-L${gccpath}/libstdc++ "
> + append ld_library_path ":${gccpath}/libstdc++"
> + }
> + if [file exists "${gccpath}/libstdc++-v3/src/.libs/libstdc++.a"] {
> + append flags " -L${gccpath}/libstdc++-v3/src/.libs "
> + append ld_library_path ":${gccpath}/libstdc++-v3/src/.libs"
> + }
> + # Look for libstdc++.${shlib_ext}.
> + if [file exists
> "${gccpath}/libstdc++-v3/src/.libs/libstdc++.${shlib_ext}"] {
> + append flags " -L${gccpath}/libstdc++-v3/src/.libs "
> + append ld_library_path ":${gccpath}/libstdc++-v3/src/.libs"
> + }
> +
> + # puts stderr "${gm2_link_libraries} before foreach"
> + foreach d [list {*}${gm2_link_libraries}] {
> + # puts stderr "${d} XXXX"
> + send_log "ld_library_path was ${ld_library_path}\n"
> + send_log "looking for ${gccpath}/lib${d}/.libs/lib${d}.a\n"
> + if [file exists "${gccpath}/libgm2/lib${d}/.libs/lib${d}.a"] {
> + send_log "good found
> ${gccpath}/libgm2/lib${d}/.libs/lib${d}.a\n"
> + # append flags " -L${gccpath}/libgm2/lib${d}/.libs -l${d}"
> + append flags " ${gccpath}/libgm2/lib${d}/.libs/lib${d}.a"
> + append ld_library_path ":${gccpath}/libgm2/lib${d}/.libs"
> + }
> + send_log "ld_library_path is ${ld_library_path}\n"
> + }
> + }
> +
> + set_ld_library_path_env_vars
> + return "$flags"
> +}
However, this misses compiler libraries (such as libgcc, which libstdc++
may depend on). For example, I see my x86_64-pc-linux-gnu '-m32' testing
not pick up the build-tree libgcc, but instead some random system one,
which (expectedly) doesn't satisfy requirements of other build-tree
libraries:
[...]/build-gcc/gcc/testsuite/gm225/m.x0:
/lib/i386-linux-gnu/libgcc_s.so.1: version `GCC_7.0.0' not found (required by
[...]/build-gcc/x86_64-pc-linux-gnu/32/libstdc++-v3/src/.libs/libstdc++.so.6)
..., and thus a lot of execution FAILs.
To cure that, OK to push the attached
"For Modula-2 build-tree testing, also set up paths to compiler libraries"?
Grüße
Thomas
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>From 5d9c8bf1a5352317fc7fd3fffe66ba690d412a4f Mon Sep 17 00:00:00 2001
From: Thomas Schwinge <tho...@codesourcery.com>
Date: Tue, 31 Jan 2023 11:38:15 +0100
Subject: [PATCH] For Modula-2 build-tree testing, also set up paths to
compiler libraries
Currently, 'gcc/testsuite/lib/gm2.exp:gm2_link_flags' doesn't set up
paths to compiler libraries (such as libgcc, which libstdc++
may depend on). For example, I see my x86_64-pc-linux-gnu '-m32' testing
not pick up the build-tree libgcc, but instead some random system one,
which (expectedly) doesn't satisfy requirements of other build-tree
libraries:
[...]/build-gcc/gcc/testsuite/gm225/m.x0: /lib/i386-linux-gnu/libgcc_s.so.1: version `GCC_7.0.0' not found (required by [...]/build-gcc/x86_64-pc-linux-gnu/32/libstdc++-v3/src/.libs/libstdc++.so.6)
..., and thus a lot of execution FAILs.
As seen in a number of other '[...]_link_flags' procedures, the standard idiom
seems to be to also consider 'gcc-set-multilib-library-path' for
'ld_library_path'.
gcc/testsuite/
* lib/gm2.exp (gm2_link_flags) [$gccpath != ""]: Also consider
'gcc-set-multilib-library-path' for 'ld_library_path'.
---
gcc/testsuite/lib/gm2.exp | 3 +++
1 file changed, 3 insertions(+)
diff --git a/gcc/testsuite/lib/gm2.exp b/gcc/testsuite/lib/gm2.exp
index 15e3729e5a3..560cb719a15 100644
--- a/gcc/testsuite/lib/gm2.exp
+++ b/gcc/testsuite/lib/gm2.exp
@@ -316,6 +316,9 @@ proc gm2_link_flags { paths } {
}
send_log "ld_library_path is ${ld_library_path}\n"
}
+
+ global GCC_UNDER_TEST
+ append ld_library_path [gcc-set-multilib-library-path $GCC_UNDER_TEST]
}
set_ld_library_path_env_vars
--
2.25.1
