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From: Florian Weimer <fw@sourceware.org> To: glibc-cvs@sourceware.org Subject: [glibc] elf: Disable some subtests of ifuncmain1, ifuncmain5 for !PIE Date: Fri, 4 Nov 2022 18:50:07 +0000 (GMT) [thread overview] Message-ID: <20221104185007.74B863858407@sourceware.org> (raw) 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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