diff options
author | Mike Frysinger <vapier@gentoo.org> | 2013-12-24 04:31:22 -0500 |
---|---|---|
committer | Mike Frysinger <vapier@gentoo.org> | 2014-01-16 15:10:14 -0500 |
commit | 7a02cfade80b2b6ed2562e74105bebfee90a87ec (patch) | |
tree | 0a1cb4e023dc9db46f67f286839c0f222928caf4 /sysdeps | |
parent | 0daf33f7d5c370968aca47a2bf75068c93432d5c (diff) | |
download | glibc-7a02cfade80b2b6ed2562e74105bebfee90a87ec.tar glibc-7a02cfade80b2b6ed2562e74105bebfee90a87ec.tar.gz glibc-7a02cfade80b2b6ed2562e74105bebfee90a87ec.tar.bz2 glibc-7a02cfade80b2b6ed2562e74105bebfee90a87ec.zip |
s390: implement sotruss support
See commit 41b1792698a335d3a85381921a84a16e9635f36a for testcase.
Note: while this works on s390x, the s390 code hangs when using -e.
But it hangs regardless of this code (the hang seems to occur before
the exit func is even called). I didn't look too closely at it as
it seems to be an issue external to this file, so this code shouldn't
make the situation any worse.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'sysdeps')
-rw-r--r-- | sysdeps/s390/sotruss-lib.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/sysdeps/s390/sotruss-lib.c b/sysdeps/s390/sotruss-lib.c new file mode 100644 index 0000000000..ded98db08d --- /dev/null +++ b/sysdeps/s390/sotruss-lib.c @@ -0,0 +1,62 @@ +/* Override generic sotruss-lib.c to define actual functions for s390. + Copyright (C) 2012-2014 Free Software Foundation, Inc. + + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library. If not, see + <http://www.gnu.org/licenses/>. */ + +#define HAVE_ARCH_PLTENTER +#define HAVE_ARCH_PLTEXIT + +#include <elf/sotruss-lib.c> + +#if __ELF_NATIVE_CLASS == 32 +# define la_s390_gnu_pltenter la_s390_32_gnu_pltenter +# define la_s390_gnu_pltexit la_s390_32_gnu_pltexit +# define La_s390_regs La_s390_32_regs +# define La_s390_retval La_s390_32_retval +#else +# define la_s390_gnu_pltenter la_s390_64_gnu_pltenter +# define la_s390_gnu_pltexit la_s390_64_gnu_pltexit +# define La_s390_regs La_s390_64_regs +# define La_s390_retval La_s390_64_retval +#endif + +ElfW(Addr) +la_s390_gnu_pltenter (ElfW(Sym) *sym, + unsigned int ndx __attribute__ ((unused)), + uintptr_t *refcook, uintptr_t *defcook, + La_s390_regs *regs, unsigned int *flags, + const char *symname, long int *framesizep) +{ + print_enter (refcook, defcook, symname, + regs->lr_r2, regs->lr_r3, regs->lr_r4, *flags); + + /* No need to copy anything, we will not need the parameters in any case. */ + *framesizep = 0; + + return sym->st_value; +} + +unsigned int +la_s390_gnu_pltexit (ElfW(Sym) *sym, unsigned int ndx, uintptr_t *refcook, + uintptr_t *defcook, + const struct La_s390_regs *inregs, + struct La_s390_retval *outregs, const char *symname) +{ + print_exit (refcook, defcook, symname, outregs->lrv_r2); + + return 0; +} |