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85 lines
3.0 KiB
85 lines
3.0 KiB
commit 7a02cfade80b2b6ed2562e74105bebfee90a87ec |
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Author: Mike Frysinger <vapier@gentoo.org> |
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Date: Tue Dec 24 04:31:22 2013 -0500 |
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s390: implement sotruss support |
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See commit 41b1792698a335d3a85381921a84a16e9635f36a for testcase. |
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Note: while this works on s390x, the s390 code hangs when using -e. |
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But it hangs regardless of this code (the hang seems to occur before |
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the exit func is even called). I didn't look too closely at it as |
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it seems to be an issue external to this file, so this code shouldn't |
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make the situation any worse. |
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Reviewed-by: Carlos O'Donell <carlos@redhat.com> |
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Signed-off-by: Mike Frysinger <vapier@gentoo.org> |
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diff --git a/sysdeps/s390/sotruss-lib.c b/sysdeps/s390/sotruss-lib.c |
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new file mode 100644 |
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index 0000000000000000..ded98db08dcf525b |
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--- /dev/null |
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+++ b/sysdeps/s390/sotruss-lib.c |
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@@ -0,0 +1,62 @@ |
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+/* Override generic sotruss-lib.c to define actual functions for s390. |
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+ Copyright (C) 2012-2014 Free Software Foundation, Inc. |
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+ |
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+ This file is part of the GNU C Library. |
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+ |
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+ The GNU C Library is free software; you can redistribute it and/or |
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+ modify it under the terms of the GNU Lesser General Public |
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+ License as published by the Free Software Foundation; either |
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+ version 2.1 of the License, or (at your option) any later version. |
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+ |
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+ The GNU C Library is distributed in the hope that it will be useful, |
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of |
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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+ Lesser General Public License for more details. |
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+ |
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+ You should have received a copy of the GNU Lesser General Public |
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+ License along with the GNU C Library. If not, see |
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+ <http://www.gnu.org/licenses/>. */ |
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+ |
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+#define HAVE_ARCH_PLTENTER |
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+#define HAVE_ARCH_PLTEXIT |
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+ |
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+#include <elf/sotruss-lib.c> |
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+ |
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+#if __ELF_NATIVE_CLASS == 32 |
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+# define la_s390_gnu_pltenter la_s390_32_gnu_pltenter |
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+# define la_s390_gnu_pltexit la_s390_32_gnu_pltexit |
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+# define La_s390_regs La_s390_32_regs |
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+# define La_s390_retval La_s390_32_retval |
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+#else |
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+# define la_s390_gnu_pltenter la_s390_64_gnu_pltenter |
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+# define la_s390_gnu_pltexit la_s390_64_gnu_pltexit |
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+# define La_s390_regs La_s390_64_regs |
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+# define La_s390_retval La_s390_64_retval |
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+#endif |
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+ |
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+ElfW(Addr) |
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+la_s390_gnu_pltenter (ElfW(Sym) *sym, |
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+ unsigned int ndx __attribute__ ((unused)), |
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+ uintptr_t *refcook, uintptr_t *defcook, |
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+ La_s390_regs *regs, unsigned int *flags, |
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+ const char *symname, long int *framesizep) |
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+{ |
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+ print_enter (refcook, defcook, symname, |
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+ regs->lr_r2, regs->lr_r3, regs->lr_r4, *flags); |
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+ |
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+ /* No need to copy anything, we will not need the parameters in any case. */ |
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+ *framesizep = 0; |
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+ |
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+ return sym->st_value; |
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+} |
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+ |
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+unsigned int |
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+la_s390_gnu_pltexit (ElfW(Sym) *sym, unsigned int ndx, uintptr_t *refcook, |
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+ uintptr_t *defcook, |
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+ const struct La_s390_regs *inregs, |
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+ struct La_s390_retval *outregs, const char *symname) |
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+{ |
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+ print_exit (refcook, defcook, symname, outregs->lrv_r2); |
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+ |
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+ return 0; |
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+}
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