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| author | Tim Moore <timoore@redhat.com> | 2009-12-16 18:00:34 +0100 |
|---|---|---|
| committer | Tim Moore <timoore@redhat.com> | 2009-12-16 18:00:34 +0100 |
| commit | 2e7f844220b9419b2f05234b07c56bcdedf7afb2 (patch) | |
| tree | 77375674011c24b8510437afcde5758c13104192 /runtime/uprobes2/uprobes.h | |
| parent | 5e562a69a5432566c6ae78344ae51b80ced7f15b (diff) | |
| download | systemtap-steved-2e7f844220b9419b2f05234b07c56bcdedf7afb2.tar.gz systemtap-steved-2e7f844220b9419b2f05234b07c56bcdedf7afb2.tar.xz systemtap-steved-2e7f844220b9419b2f05234b07c56bcdedf7afb2.zip | |
function to translate from the uretprobe trampoline back to the original
return address
* runtime/uprobes2/uprobes.c (uprobe_get_pc): new function
Diffstat (limited to 'runtime/uprobes2/uprobes.h')
| -rw-r--r-- | runtime/uprobes2/uprobes.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/runtime/uprobes2/uprobes.h b/runtime/uprobes2/uprobes.h index ae0692f0..5d2a826e 100644 --- a/runtime/uprobes2/uprobes.h +++ b/runtime/uprobes2/uprobes.h @@ -88,6 +88,14 @@ extern void unregister_uretprobe(struct uretprobe *rp); /* For PRs 9940, 6852... */ extern void unmap_uprobe(struct uprobe *u); extern void unmap_uretprobe(struct uretprobe *rp); +/* + * Given a program counter, translate it back to the original address + * if it is the address of the trampoline. sp is the stack pointer for + * the frame that corresponds to the address. + */ +extern unsigned long uprobe_get_pc(struct uretprobe_instance *ri, + unsigned long pc, + unsigned long sp); #ifdef UPROBES_IMPLEMENTATION |