[PATCH/committed] ia64: implement sotruss support

[Mike Frysinger <vapier at gentoo dot org>]

Tested with:
	$ cat test.c
	main(){close(0x1024, 2, 3);}
	$ gcc test.c
	$ sotruss -e ./a.out
		a.out -> libc.so.6.1    : __libc_start_main(0x4000000000000950, 0x1, 0x60000fffffb56bc8)
		a.out -> libc.so.6.1    : close(0x1024, 0x2, 0x3)
		a.out -> libc.so.6.1    : close - 0xffffffffffffffff

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
---
 ports/ChangeLog.ia64             |  4 ++++
 ports/sysdeps/ia64/sotruss-lib.c | 50 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 54 insertions(+)
 create mode 100644 ports/sysdeps/ia64/sotruss-lib.c

diff --git a/ports/ChangeLog.ia64 b/ports/ChangeLog.ia64
index 1a2c5b8..756664c 100644
--- a/ports/ChangeLog.ia64
+++ b/ports/ChangeLog.ia64
@@ -1,5 +1,9 @@
 2013-12-24  Mike Frysinger  <vapier@gentoo.org>
 
+	* sysdeps/ia64/sotruss-lib.c: New file.
+
+2013-12-24  Mike Frysinger  <vapier@gentoo.org>
+
 	* sysdeps/ia64/bits/link.h: Fix whitespace.
 
 2013-11-28  Joseph Myers  <joseph@codesourcery.com>
diff --git a/ports/sysdeps/ia64/sotruss-lib.c b/ports/sysdeps/ia64/sotruss-lib.c
new file mode 100644
index 0000000..8150c8b
--- /dev/null
+++ b/ports/sysdeps/ia64/sotruss-lib.c
@@ -0,0 +1,50 @@
+/* Override generic sotruss-lib.c to define actual functions for ia64.
+   Copyright (C) 2012-2013 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>
+
+ElfW(Addr)
+la_ia64_gnu_pltenter (ElfW(Sym) *sym __attribute__ ((unused)),
+		      unsigned int ndx __attribute__ ((unused)),
+		      uintptr_t *refcook, uintptr_t *defcook,
+		      La_ia64_regs *regs, unsigned int *flags,
+		      const char *symname, long int *framesizep)
+{
+  print_enter (refcook, defcook, symname,
+	       regs->lr_gr[0], regs->lr_gr[1], regs->lr_gr[2], *flags);
+
+  /* No need to copy anything, we will not need the parameters in any case.  */
+  *framesizep = 0;
+
+  return sym->st_value;
+}
+
+unsigned int
+la_ia64_gnu_pltexit (ElfW(Sym) *sym, unsigned int ndx, uintptr_t *refcook,
+		     uintptr_t *defcook,
+		     const struct La_ia64_regs *inregs,
+		     struct La_ia64_retval *outregs, const char *symname)
+{
+  print_exit (refcook, defcook, symname, outregs->lrv_r8);
+
+  return 0;
+}
-- 
1.8.4.3