cache_pc
indirect_linkstub_target(dcontext_t *dcontext, fragment_t *f, linkstub_t *l)
{
// COMPLETEDD #495 indirect_linkstub_target
printf("Starting indirect_linkstub_target\n");
ASSERT(LINKSTUB_INDIRECT(l->flags));
ASSERT(!TESTANY(LINK_NI_SYSCALL_ALL, l->flags));
#ifdef WINDOWS
if (EXIT_TARGETS_SHARED_SYSCALL(l->flags)) {
/* currently this is the only way to distinguish shared_syscall
* exit from other indirect exits and from other exits in
* a fragment containing ignorable or non-ignorable syscalls
*/
ASSERT(TEST(FRAG_HAS_SYSCALL, f->flags));
return shared_syscall_routine_ex(dcontext
_IF_X64(MODE_OVERRIDE(FRAG_IS_32(f->flags))));
}
#endif
if (TEST(FRAG_COARSE_GRAIN, f->flags)) {
/* Need to target the ibl prefix. Passing in cti works as well as stub,
* and avoids a circular dependence where linkstub_unlink_entry_offset()
* call this routine to get the target and then this routine asks for
* the stub which calls linkstub_unlink_entry_offset()...
*/
return get_coarse_ibl_prefix(dcontext, EXIT_CTI_PC(f, l),
extract_branchtype(l->flags));
} else {
return get_ibl_routine_ex(dcontext,
IF_X64(TEST(LINK_TRACE_CMP, l->flags) ? IBL_TRACE_CMP :)
IBL_LINKED,
get_source_fragment_type(dcontext, f->flags),
extract_branchtype(l->flags)
_IF_X64(MODE_OVERRIDE(FRAG_IS_32(f->flags))));
}
}
/* case 4344 - verify we can recreate app pc in fragment, returns the pc of
* the last instruction in the body of f */
static cache_pc
get_last_fragment_body_instr_pc(dcontext_t *dcontext, fragment_t *f)
{
cache_pc body_last_inst_pc;
linkstub_t *l;
/* Assumption : the last exit stub exit cti is the last instruction in the
* body. PR 215217 enforces this for CLIENT_INTERFACE as well. */
l = FRAGMENT_EXIT_STUBS(f);
/* never called on future fragments, so a stub should exist */
while (!LINKSTUB_FINAL(l))
l = LINKSTUB_NEXT_EXIT(l);
body_last_inst_pc = EXIT_CTI_PC(f, l);
return body_last_inst_pc;
}
