diff options
Diffstat (limited to 'runtime/regs.c')
| -rw-r--r-- | runtime/regs.c | 37 |
1 files changed, 0 insertions, 37 deletions
diff --git a/runtime/regs.c b/runtime/regs.c index 2f7c741d..e963affa 100644 --- a/runtime/regs.c +++ b/runtime/regs.c @@ -23,43 +23,6 @@ * @{ */ - -/** Get the current return address. - * Call from kprobes (not jprobes). - * @param regs The pt_regs saved by the kprobe. - * @return The return address saved in the stack pointer. - * @note i386 and x86_64 only so far. - */ - -static unsigned long _stp_ret_addr (struct pt_regs *regs) -{ -#if defined (STAPCONF_X86_UNIREGS) && (defined (__x86_64__) || defined (__i386__)) - unsigned long *ra = (unsigned long *)regs->sp; - if (ra) - return *ra; - else - return 0; -#elif defined (__x86_64__) - unsigned long *ra = (unsigned long *)regs->rsp; - if (ra) - return *ra; - else - return 0; -#elif defined (__i386__) - return regs->esp; -#elif defined (__powerpc64__) || defined (__arm__) - return REG_LINK(regs); -#elif defined (__ia64__) - return regs->b0; -#elif defined (__s390__) || defined (__s390x__) - return regs->gprs[14]; -#elif defined (__arm__) - return regs->ARM_r0; -#else - #error Unimplemented architecture -#endif -} - /** Get the current return address for a return probe. * Call from kprobe return probe. * @param ri Pointer to the struct kretprobe_instance. |