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-rw-r--r--erts/emulator/hipe/hipe_gc.c119
-rw-r--r--erts/emulator/hipe/hipe_risc_gc.h13
-rw-r--r--erts/emulator/hipe/hipe_stack.h3
-rw-r--r--erts/emulator/hipe/hipe_x86_gc.h17
4 files changed, 152 insertions, 0 deletions
diff --git a/erts/emulator/hipe/hipe_gc.c b/erts/emulator/hipe/hipe_gc.c
index 566c65882e..68c65dea27 100644
--- a/erts/emulator/hipe/hipe_gc.c
+++ b/erts/emulator/hipe/hipe_gc.c
@@ -237,3 +237,122 @@ void gensweep_nstack(Process *p, Eterm **ptr_old_htop, Eterm **ptr_n_htop)
}
abort();
}
+
+Eterm *sweep_literals_nstack(Process *p, Eterm *old_htop, char *area,
+ Uint area_size)
+{
+ /* known nstack walk state */
+ Eterm *nsp;
+ Eterm *nsp_end;
+ const struct sdesc *sdesc;
+ /* arch-specific nstack walk state */
+ struct nstack_walk_state walk_state;
+
+ ASSERT(!p->hipe.gc_is_unsafe);
+
+ if (!p->hipe.nstack) {
+ ASSERT(!p->hipe.nsp && !p->hipe.nstend);
+ return old_htop;
+ }
+ if (!nstack_walk_init_check(p))
+ return old_htop;
+
+ ASSERT(p->hipe.nsp && p->hipe.nstend);
+ nsp = nstack_walk_nsp_begin(p);
+ nsp_end = nstack_walk_nsp_end(p);
+ sdesc = nstack_walk_init_sdesc_ignore_trap(p, &walk_state);
+
+ while (!nstack_walk_nsp_reached_end(nsp, nsp_end)) {
+ unsigned long ra;
+ unsigned sdesc_size = nstack_walk_frame_size(sdesc);
+ unsigned i = 0;
+ unsigned mask = sdesc->livebits[0];
+ for (;;) {
+ if (mask & 1) {
+ Eterm *nsp_i = nstack_walk_frame_index(nsp, i);
+ Eterm gval = *nsp_i;
+ if (is_boxed(gval)) {
+ Eterm *ptr = boxed_val(gval);
+ Eterm val = *ptr;
+ if (IS_MOVED_BOXED(val)) {
+ ASSERT(is_boxed(val));
+ *nsp_i = val;
+ } else if (ErtsInArea(ptr, area, area_size)) {
+ MOVE_BOXED(ptr, val, old_htop, nsp_i);
+ }
+ } else if (is_list(gval)) {
+ Eterm *ptr = list_val(gval);
+ Eterm val = *ptr;
+ if (IS_MOVED_CONS(val)) {
+ *nsp_i = ptr[1];
+ } else if (ErtsInArea(ptr, area, area_size)) {
+ MOVE_CONS(ptr, val, old_htop, nsp_i);
+ }
+ }
+ }
+ if (++i >= sdesc_size)
+ break;
+ if (i & 31)
+ mask >>= 1;
+ else
+ mask = sdesc->livebits[i >> 5];
+ }
+ ra = nstack_walk_frame_ra(nsp, sdesc);
+ if (ra == (unsigned long)nbif_stack_trap_ra)
+ ra = (unsigned long)p->hipe.ngra;
+ sdesc = hipe_find_sdesc(ra);
+ nsp = nstack_walk_next_frame(nsp, sdesc_size);
+ }
+ return old_htop;
+}
+
+int
+nstack_any_heap_ref_ptrs(Process *rp, char* mod_start, Uint mod_size)
+{
+ Eterm *nsp;
+ Eterm *nsp_end;
+ const struct sdesc *sdesc;
+ /* arch-specific nstack walk state */
+ struct nstack_walk_state walk_state;
+
+ ASSERT(!rp->hipe.gc_is_unsafe);
+
+ if (!rp->hipe.nstack || !nstack_walk_init_check(rp)) return 0;
+ ASSERT(rp->hipe.nsp && rp->hipe.nstend);
+ nsp = nstack_walk_nsp_begin(rp);
+ nsp_end = nstack_walk_nsp_end(rp);
+ sdesc = nstack_walk_init_sdesc_ignore_trap(rp, &walk_state);
+
+ while (!nstack_walk_nsp_reached_end(nsp, nsp_end)) {
+ unsigned long ra;
+ unsigned sdesc_size = nstack_walk_frame_size(sdesc);
+ unsigned i = 0;
+ unsigned mask = sdesc->livebits[0];
+ for (;;) {
+ if (mask & 1) {
+ Eterm *nsp_i = nstack_walk_frame_index(nsp, i);
+ Eterm val = *nsp_i;
+ switch (primary_tag(val)) {
+ case TAG_PRIMARY_BOXED:
+ case TAG_PRIMARY_LIST:
+ if (ErtsInArea(val, mod_start, mod_size)) {
+ return 1;
+ }
+ break;
+ }
+ }
+ if (++i >= sdesc_size)
+ break;
+ if (i & 31)
+ mask >>= 1;
+ else
+ mask = sdesc->livebits[i >> 5];
+ }
+ ra = nstack_walk_frame_ra(nsp, sdesc);
+ if (ra == (unsigned long)nbif_stack_trap_ra)
+ ra = (unsigned long)rp->hipe.ngra;
+ sdesc = hipe_find_sdesc(ra);
+ nsp = nstack_walk_next_frame(nsp, sdesc_size);
+ }
+ return 0;
+}
diff --git a/erts/emulator/hipe/hipe_risc_gc.h b/erts/emulator/hipe/hipe_risc_gc.h
index 315f8e7f9f..09568c140e 100644
--- a/erts/emulator/hipe/hipe_risc_gc.h
+++ b/erts/emulator/hipe/hipe_risc_gc.h
@@ -51,6 +51,19 @@ nstack_walk_init_sdesc(const Process *p, struct nstack_walk_state *state)
return sdesc;
}
+static inline const struct sdesc*
+nstack_walk_init_sdesc_ignore_trap(const Process *p,
+ struct nstack_walk_state *state)
+{
+ unsigned long ra = (unsigned long)p->hipe.nra;
+ const struct sdesc *sdesc;
+ if (ra == (unsigned long)&nbif_stack_trap_ra)
+ ra = (unsigned long)p->hipe.ngra;
+ sdesc = hipe_find_sdesc(ra);
+ state->sdesc0 = sdesc;
+ return sdesc;
+}
+
static inline void nstack_walk_update_trap(Process *p, const struct sdesc *sdesc0)
{
Eterm *nsp = p->hipe.nsp;
diff --git a/erts/emulator/hipe/hipe_stack.h b/erts/emulator/hipe/hipe_stack.h
index 4ea7d5c031..afa0ed4256 100644
--- a/erts/emulator/hipe/hipe_stack.h
+++ b/erts/emulator/hipe/hipe_stack.h
@@ -131,5 +131,8 @@ static __inline__ void hipe_check_nstack(Process *p, unsigned nwords)
*/
extern Eterm *fullsweep_nstack(Process *p, Eterm *n_htop);
extern void gensweep_nstack(Process *p, Eterm **ptr_old_htop, Eterm **ptr_n_htop);
+extern Eterm *sweep_literals_nstack(Process *p, Eterm *n_htop, char *area,
+ Uint area_size);
+extern int nstack_any_heap_ref_ptrs(Process *, char* mod_start, Uint mod_size);
#endif /* HIPE_STACK_H */
diff --git a/erts/emulator/hipe/hipe_x86_gc.h b/erts/emulator/hipe/hipe_x86_gc.h
index c22b28c2d5..00fe03d8f9 100644
--- a/erts/emulator/hipe/hipe_x86_gc.h
+++ b/erts/emulator/hipe/hipe_x86_gc.h
@@ -81,6 +81,23 @@ nstack_walk_init_sdesc(const Process *p, struct nstack_walk_state *state)
#endif
}
+static inline const struct sdesc*
+nstack_walk_init_sdesc_ignore_trap(const Process *p,
+ struct nstack_walk_state *state)
+{
+#ifdef SKIP_YOUNGEST_FRAME
+ unsigned long ra = p->hipe.nsp[0];
+ const struct sdesc *sdesc;
+ if (ra == (unsigned long)nbif_stack_trap_ra)
+ ra = (unsigned long)p->hipe.ngra;
+ sdesc = hipe_find_sdesc(ra);
+ state->sdesc0 = sdesc;
+ return sdesc;
+#else
+ return nstack_walk_init_sdesc(p, state);
+#endif
+}
+
static inline void nstack_walk_update_trap(Process *p, const struct sdesc *sdesc0)
{
#ifdef SKIP_YOUNGEST_FRAME
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-08 04:47:19 +0000