Fix a problem with the libffi testsuite using a method to determine the
compiler to use resulting in the tool being different from one the
library has been built with, and causing a catastrophic failure from the
inability to actually choose any compiler at all in a cross-compilation
configuration.
Address this problem by providing a DejaGNU configuration file defining
the compiler to use, via the GCC_UNDER_TEST TCL variable, set from $CC
by autoconf, which will have all the required options set for the target
compiler to build executables in the environment configured, removing
failures like:
FAIL: libffi.call/closure_fn0.c -W -Wall -Wno-psabi -O0 (test for excess errors)
Excess errors:
default_target_compile: No compiler to compile with
UNRESOLVED: libffi.call/closure_fn0.c -W -Wall -Wno-psabi -O0 compilation
failed to produce executable
and bringing overall test results for the `riscv64-linux-gnu' target
(here with the `x86_64-linux-gnu' host and RISC-V QEMU in the Linux user
emulation mode as the target board) from:
=== libffi Summary ===
# of unexpected failures 708
# of unresolved testcases 708
# of unsupported tests 30
to:
=== libffi Summary ===
# of expected passes 1934
# of unsupported tests 28
Also respect the TOOL_EXECUTABLE TCL variable for a standalone run via
`runtest' and remove an unused TOOL_OPTIONS TCL variable instance.
libffi/
* configure.ac: Add testsuite/libffi-site-extra.exp to output
files.
* configure: Regenerate.
* testsuite/libffi-site-extra.exp.in: New file.
* testsuite/Makefile.am (EXTRA_DEJAGNU_SITE_CONFIG): New
variable.
* testsuite/Makefile.in: Regenerate.
* testsuite/lib/libffi.exp (libffi-init): Handle GCC_UNDER_TEST.
(libffi_target_compile): Likewise.
---
Changes from v2:
- Revert to v1.
- Rename testsuite/libffi-test-support.exp.in to
testsuite/libffi-site-extra.exp.in.
Changes from v1:
- Remove testsuite/libffi-test-support.exp.in and the associated changes.
- Pass $(CC) via `--tool_exec' in $(AM_RUNTESTFLAGS).
---
libffi/configure | 3 ++-
libffi/configure.ac | 2 +-
libffi/testsuite/Makefile.am | 2 ++
libffi/testsuite/Makefile.in | 5 ++++-
libffi/testsuite/lib/libffi.exp | 16 ++++++++++++++--
libffi/testsuite/libffi-site-extra.exp.in | 1 +
6 files changed, 24 insertions(+), 5 deletions(-)
gcc-test-libffi-gcc-under-test.diff
Index: gcc/libffi/configure
===================================================================
--- gcc.orig/libffi/configure
+++ gcc/libffi/configure
@@ -16662,7 +16662,7 @@ ac_config_commands="$ac_config_commands
ac_config_links="$ac_config_links
include/ffitarget.h:src/$TARGETDIR/ffitarget.h"
-ac_config_files="$ac_config_files include/Makefile include/ffi.h Makefile
testsuite/Makefile man/Makefile libffi.pc"
+ac_config_files="$ac_config_files include/Makefile include/ffi.h Makefile
testsuite/Makefile testsuite/libffi-site-extra.exp man/Makefile libffi.pc"
cat >confcache <<\_ACEOF
@@ -17829,6 +17829,7 @@ do
"include/ffi.h") CONFIG_FILES="$CONFIG_FILES include/ffi.h" ;;
"Makefile") CONFIG_FILES="$CONFIG_FILES Makefile" ;;
"testsuite/Makefile") CONFIG_FILES="$CONFIG_FILES testsuite/Makefile" ;;
+ "testsuite/libffi-site-extra.exp") CONFIG_FILES="$CONFIG_FILES
testsuite/libffi-site-extra.exp" ;;
"man/Makefile") CONFIG_FILES="$CONFIG_FILES man/Makefile" ;;
"libffi.pc") CONFIG_FILES="$CONFIG_FILES libffi.pc" ;;
Index: gcc/libffi/configure.ac
===================================================================
--- gcc.orig/libffi/configure.ac
+++ gcc/libffi/configure.ac
@@ -377,6 +377,6 @@ test -d src/$TARGETDIR || mkdir src/$TAR
AC_CONFIG_LINKS(include/ffitarget.h:src/$TARGETDIR/ffitarget.h)
-AC_CONFIG_FILES(include/Makefile include/ffi.h Makefile testsuite/Makefile
man/Makefile libffi.pc)
+AC_CONFIG_FILES(include/Makefile include/ffi.h Makefile testsuite/Makefile
testsuite/libffi-site-extra.exp man/Makefile libffi.pc)
AC_OUTPUT
Index: gcc/libffi/testsuite/Makefile.am
===================================================================
--- gcc.orig/libffi/testsuite/Makefile.am
+++ gcc/libffi/testsuite/Makefile.am
@@ -11,6 +11,8 @@ RUNTEST = `if [ -f $(top_srcdir)/../deja
echo $(top_srcdir)/../dejagnu/runtest ; \
else echo runtest; fi`
+EXTRA_DEJAGNU_SITE_CONFIG = libffi-site-extra.exp
+
AM_RUNTESTFLAGS =
CLEANFILES = *.exe core* *.log *.sum
Index: gcc/libffi/testsuite/Makefile.in
===================================================================
--- gcc.orig/libffi/testsuite/Makefile.in
+++ gcc/libffi/testsuite/Makefile.in
@@ -106,7 +106,7 @@ am__configure_deps = $(am__aclocal_m4_de
DIST_COMMON = $(srcdir)/Makefile.am
mkinstalldirs = $(SHELL) $(top_srcdir)/../mkinstalldirs
CONFIG_HEADER = $(top_builddir)/fficonfig.h
-CONFIG_CLEAN_FILES =
+CONFIG_CLEAN_FILES = libffi-site-extra.exp
CONFIG_CLEAN_VPATH_FILES =
AM_V_P = $(am__v_P_@AM_V@)
am__v_P_ = $(am__v_P_@AM_DEFAULT_V@)
@@ -279,6 +279,7 @@ RUNTEST = `if [ -f $(top_srcdir)/../deja
echo $(top_srcdir)/../dejagnu/runtest ; \
else echo runtest; fi`
+EXTRA_DEJAGNU_SITE_CONFIG = libffi-site-extra.exp
CLEANFILES = *.exe core* *.log *.sum
EXTRA_DIST = config/default.exp libffi.call/cls_19byte.c \
libffi.call/cls_align_longdouble_split.c \
@@ -390,6 +391,8 @@ $(top_srcdir)/configure: @MAINTAINER_MOD
$(ACLOCAL_M4): @MAINTAINER_MODE_TRUE@ $(am__aclocal_m4_deps)
cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
$(am__aclocal_m4_deps):
+libffi-site-extra.exp: $(top_builddir)/config.status
$(srcdir)/libffi-site-extra.exp.in
+ cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@
mostlyclean-libtool:
-rm -f *.lo
Index: gcc/libffi/testsuite/lib/libffi.exp
===================================================================
--- gcc.orig/libffi/testsuite/lib/libffi.exp
+++ gcc/libffi/testsuite/lib/libffi.exp
@@ -99,7 +99,8 @@ proc libffi-init { args } {
global blddirffi
global objdir
global blddircxx
- global TOOL_OPTIONS
+ global TOOL_EXECUTABLE
+ global GCC_UNDER_TEST
global tool
global libffi_include
global libffi_link_flags
@@ -123,7 +124,15 @@ proc libffi-init { args } {
set ld_library_path "."
append ld_library_path ":${gccdir}"
- set compiler "${gccdir}/xgcc"
+ if ![info exists GCC_UNDER_TEST] then {
+ if [info exists TOOL_EXECUTABLE] {
+ set GCC_UNDER_TEST $TOOL_EXECUTABLE
+ } else {
+ set GCC_UNDER_TEST "[find_gcc]"
+ }
+ }
+
+ set compiler [lindex $GCC_UNDER_TEST 0]
if { [is_remote host] == 0 && [which $compiler] != 0 } {
foreach i "[exec $compiler --print-multi-lib]" {
set mldir ""
@@ -175,11 +184,14 @@ proc libffi_target_compile { source dest
global srcdir
global blddirffi
global TOOL_OPTIONS
+ global GCC_UNDER_TEST
global libffi_link_flags
global libffi_include
global target_triplet
+ lappend options "compiler=$GCC_UNDER_TEST"
+
if { [target_info needs_status_wrapper]!="" && [info exists gluefile] } {
lappend options "libs=${gluefile}"
lappend options "ldflags=$wrap_flags"
Index: gcc/libffi/testsuite/libffi-site-extra.exp.in
===================================================================
--- /dev/null
+++ gcc/libffi/testsuite/libffi-site-extra.exp.in
@@ -0,0 +1 @@
+set GCC_UNDER_TEST {@CC@}
