If GCC is tested with a sysroot which doesn't contain a Python
installation (e.g., with a command such as
"make check-gcc-c FLAGS_UNDER_TEST="--sysroot=/some/path"), but there's
a python3-config in $PATH, then the testsuite will pick up the host's
Python.h which can't actually be used:
Executing on host: python3-config --includes (timeout = 300)
spawn -ignore SIGHUP python3-config --includes
-I/usr/include/python3.10 -I/usr/include/python3.10
Executing on host: /some/sysroot/bin/aarch64-unknown-linux-gnu-gcc
--sysroot=/some/sysroot/libc
-Wl,-dynamic-linker=/some/sysroot/libc/lib/ld-linux-aarch64.so.1
-Wl,-rpath=/some/sysroot/libc/lib
/some/src/gcc.git/gcc/testsuite/gcc.dg/plugin/cpython-plugin-test-2.c
-fdiagnostics-plain-output -fplugin=./analyzer_cpython_plugin.so -fanalyzer
-I/usr/include/python3.10 -I/usr/include/python3.10 -S -o
cpython-plugin-test-2.s (timeout = 600)
spawn -ignore SIGHUP /some/sysroot/bin/aarch64-unknown-linux-gnu-gcc
--sysroot=/some/sysroot/libc
-Wl,-dynamic-linker=/some/sysroot/libc/lib/ld-linux-aarch64.so.1
-Wl,-rpath=/some/sysroot/libc/lib
/some/src/gcc.git/gcc/testsuite/gcc.dg/plugin/cpython-plugin-test-2.c
-fdiagnostics-plain-output -fplugin=./analyzer_cpython_plugin.so -fanalyzer
-I/usr/include/python3.10 -I/usr/include/python3.10 -S -o
cpython-plugin-test-2.s
In file included from /usr/include/python3.10/Python.h:8,
from
/some/src/gcc.git/gcc/testsuite/gcc.dg/plugin/cpython-plugin-test-2.c:8:
/usr/include/python3.10/pyconfig.h:9:12: fatal error:
aarch64-linux-gnu/python3.10/pyconfig.h: No such file or directory
compilation terminated.
compiler exited with status 1
This problem causes these testsuite failures:
FAIL: gcc.dg/plugin/cpython-plugin-test-2.c
-fplugin=./analyzer_cpython_plugin.so (test for warnings, line 17)
FAIL: gcc.dg/plugin/cpython-plugin-test-2.c
-fplugin=./analyzer_cpython_plugin.so (test for warnings, line 18)
FAIL: gcc.dg/plugin/cpython-plugin-test-2.c
-fplugin=./analyzer_cpython_plugin.so (test for warnings, line 21)
FAIL: gcc.dg/plugin/cpython-plugin-test-2.c
-fplugin=./analyzer_cpython_plugin.so (test for warnings, line 31)
FAIL: gcc.dg/plugin/cpython-plugin-test-2.c
-fplugin=./analyzer_cpython_plugin.so (test for warnings, line 32)
FAIL: gcc.dg/plugin/cpython-plugin-test-2.c
-fplugin=./analyzer_cpython_plugin.so (test for warnings, line 35)
FAIL: gcc.dg/plugin/cpython-plugin-test-2.c
-fplugin=./analyzer_cpython_plugin.so (test for warnings, line 45)
FAIL: gcc.dg/plugin/cpython-plugin-test-2.c
-fplugin=./analyzer_cpython_plugin.so (test for warnings, line 55)
FAIL: gcc.dg/plugin/cpython-plugin-test-2.c
-fplugin=./analyzer_cpython_plugin.so (test for warnings, line 63)
FAIL: gcc.dg/plugin/cpython-plugin-test-2.c
-fplugin=./analyzer_cpython_plugin.so (test for warnings, line 66)
FAIL: gcc.dg/plugin/cpython-plugin-test-2.c
-fplugin=./analyzer_cpython_plugin.so (test for warnings, line 68)
FAIL: gcc.dg/plugin/cpython-plugin-test-2.c
-fplugin=./analyzer_cpython_plugin.so (test for warnings, line 69)
FAIL: gcc.dg/plugin/cpython-plugin-test-2.c
-fplugin=./analyzer_cpython_plugin.so (test for excess errors)
Excess errors:
/usr/include/python3.10/pyconfig.h:9:12: fatal error:
aarch64-linux-gnu/python3.10/pyconfig.h: No such file or directory
compilation terminated.
So try to compile a test file so that the testcase can be marked as
unsupported instead.
gcc/testsuite/ChangeLog:
* gcc/testsuite/lib/target-supports.exp (dg-require-python-h): Test
whether Python.h can really be used.
---
gcc/testsuite/lib/target-supports.exp | 14 ++++++++++++--
1 file changed, 12 insertions(+), 2 deletions(-)
diff --git a/gcc/testsuite/lib/target-supports.exp
b/gcc/testsuite/lib/target-supports.exp
index 92b6f69730e9..5b5f86551844 100644
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -12570,11 +12570,21 @@ proc dg-require-python-h { args } {
verbose "ENTER dg-require-python-h" 2
+ set supported 0
set result [remote_exec host "python3-config --includes"]
set status [lindex $result 0]
if { $status == 0 } {
- set python_flags [lindex $result 1]
- } else {
+ # Remove trailing newline from python3-config output.
+ set python_flags [string trim [lindex $result 1]]
+ if [check_no_compiler_messages python_h assembly {
+ #include <Python.h>
+ int main (void) { return 0; }
+ } $python_flags] {
+ set supported 1
+ }
+ }
+
+ if { $supported == 0 } {
verbose "Python.h not supported" 2
upvar dg-do-what dg-do-what
set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"]
base-commit: 1eb2433ff9e85008a289db03ff7eb802d51c42a8
