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* [glibc] elf: Disable some subtests of ifuncmain1, ifuncmain5 for !PIE
@ 2022-11-04 18:50 Florian Weimer
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From: Florian Weimer @ 2022-11-04 18:50 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=9cc9d61ee12f2f8620d8e0ea3c42af02bf07fe1e
commit 9cc9d61ee12f2f8620d8e0ea3c42af02bf07fe1e
Author: Florian Weimer <fweimer@redhat.com>
Date: Fri Nov 4 18:37:16 2022 +0100
elf: Disable some subtests of ifuncmain1, ifuncmain5 for !PIE
Diff:
---
elf/ifuncmain1.c | 13 +++++++++++++
elf/ifuncmain5.c | 9 +++++++++
2 files changed, 22 insertions(+)
diff --git a/elf/ifuncmain1.c b/elf/ifuncmain1.c
index 747fc02648..6effce3d77 100644
--- a/elf/ifuncmain1.c
+++ b/elf/ifuncmain1.c
@@ -19,7 +19,14 @@ typedef int (*foo_p) (void);
#endif
foo_p foo_ptr = foo;
+
+/* Address-significant access to protected symbols is not supported in
+ position-dependent mode on several architectures because GCC
+ generates relocations that assume that the address is local to the
+ main program. */
+#ifdef __PIE__
foo_p foo_procted_ptr = foo_protected;
+#endif
extern foo_p get_foo_p (void);
extern foo_p get_foo_hidden_p (void);
@@ -37,12 +44,16 @@ main (void)
if ((*foo_ptr) () != -1)
abort ();
+#ifdef __PIE__
if (foo_procted_ptr != foo_protected)
abort ();
+#endif
if (foo_protected () != 0)
abort ();
+#ifdef __PIE__
if ((*foo_procted_ptr) () != 0)
abort ();
+#endif
p = get_foo_p ();
if (p != foo)
@@ -55,8 +66,10 @@ main (void)
abort ();
p = get_foo_protected_p ();
+#ifdef __PIE__
if (p != foo_protected)
abort ();
+#endif
if (ret_foo_protected != 0 || (*p) () != ret_foo_protected)
abort ();
diff --git a/elf/ifuncmain5.c b/elf/ifuncmain5.c
index f398085cb4..6fda768fb6 100644
--- a/elf/ifuncmain5.c
+++ b/elf/ifuncmain5.c
@@ -14,12 +14,19 @@ get_foo (void)
return foo;
}
+
+/* Address-significant access to protected symbols is not supported in
+ position-dependent mode on several architectures because GCC
+ generates relocations that assume that the address is local to the
+ main program. */
+#ifdef __PIE__
foo_p
__attribute__ ((noinline))
get_foo_protected (void)
{
return foo_protected;
}
+#endif
int
main (void)
@@ -30,9 +37,11 @@ main (void)
if ((*p) () != -1)
abort ();
+#ifdef __PIE__
p = get_foo_protected ();
if ((*p) () != 0)
abort ();
+#endif
return 0;
}
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2022-11-04 18:50 [glibc] elf: Disable some subtests of ifuncmain1, ifuncmain5 for !PIE Florian Weimer
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