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author | kenistoj <kenistoj> | 2007-10-10 23:31:37 +0000 |
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committer | kenistoj <kenistoj> | 2007-10-10 23:31:37 +0000 |
commit | 4d3b883963b7ba3452ac641b633c89dcb92f0ef1 (patch) | |
tree | 4925aca604996e464c2ee8e292dc96071ee7dfec /runtime/uprobes/uprobes_ppc64.c | |
parent | ff0232d1767c1a2ef4bdfbf58d84ef8f6787be55 (diff) | |
download | systemtap-steved-4d3b883963b7ba3452ac641b633c89dcb92f0ef1.tar.gz systemtap-steved-4d3b883963b7ba3452ac641b633c89dcb92f0ef1.tar.xz systemtap-steved-4d3b883963b7ba3452ac641b633c89dcb92f0ef1.zip |
* runtime/uprobes/uprobes_ppc64.[ch]: Added
* runtime/uprobes/uprobes_s390.[ch]: Added
Diffstat (limited to 'runtime/uprobes/uprobes_ppc64.c')
-rw-r--r-- | runtime/uprobes/uprobes_ppc64.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/runtime/uprobes/uprobes_ppc64.c b/runtime/uprobes/uprobes_ppc64.c new file mode 100644 index 00000000..d80676e9 --- /dev/null +++ b/runtime/uprobes/uprobes_ppc64.c @@ -0,0 +1,36 @@ +/* + * Userspace Probes (UProbes) for PowerPC + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + * Copyright IBM Corporation, 2007 + */ +/* + * In versions of uprobes built in the SystemTap runtime, this file + * is #included at the end of uprobes.c. + */ + +/* + * Replace the return address with the trampoline address. Returns + * the original return address. + */ +static +unsigned long arch_hijack_uret_addr(unsigned long trampoline_address, + struct pt_regs *regs, struct uprobe_task *utask) +{ + unsigned long orig_ret_addr = regs->link; + regs->link = trampoline_address; + return orig_ret_addr; +} |