Author: Armin Rigo <ar...@tunes.org>
Branch:
Changeset: r78890:7f61ec8c3fd6
Date: 2015-08-11 13:50 +0100
http://bitbucket.org/pypy/pypy/changeset/7f61ec8c3fd6/
Log: Allow compilation on older Linux systems
diff --git a/rpython/rlib/debug.py b/rpython/rlib/debug.py
--- a/rpython/rlib/debug.py
+++ b/rpython/rlib/debug.py
@@ -442,19 +442,26 @@
eci = ExternalCompilationInfo(includes=['string.h', 'assert.h',
'sys/prctl.h'],
post_include_bits=["""
+/* If we have an old Linux kernel (or compile with old system headers),
+ the following two macros are not defined. But we would still like
+ a pypy translated on such a system to run on a more modern system. */
+#ifndef PR_SET_PTRACER
+# define PR_SET_PTRACER 0x59616d61
+#endif
+#ifndef PR_SET_PTRACER_ANY
+# define PR_SET_PTRACER_ANY ((unsigned long)-1)
+#endif
static void pypy__allow_attach(void) {
prctl(PR_SET_PTRACER, PR_SET_PTRACER_ANY);
- return;
}
"""])
+ allow_attach = rffi.llexternal(
+ "pypy__allow_attach", [], lltype.Void,
+ compilation_info=eci, _nowrapper=True)
else:
# Do nothing, there's no prctl
- eci = ExternalCompilationInfo(post_include_bits=[
- "static void pypy__allow_attach(void) { return; }"])
-
- allow_attach = rffi.llexternal(
- "pypy__allow_attach", [], lltype.Void,
- compilation_info=eci, _nowrapper=True)
+ def allow_attach():
+ pass
def impl_attach_gdb():
import os
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