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-rw-r--r--src/rt/circular_buffer.cpp16
-rw-r--r--src/rt/rust.cpp4
-rw-r--r--src/rt/rust_builtin.cpp54
-rw-r--r--src/rt/rust_chan.cpp10
-rw-r--r--src/rt/rust_crate.cpp2
-rw-r--r--src/rt/rust_crate_cache.cpp42
-rw-r--r--src/rt/rust_crate_reader.cpp55
-rw-r--r--src/rt/rust_dom.cpp45
-rw-r--r--src/rt/rust_dom.h5
-rw-r--r--src/rt/rust_kernel.cpp27
-rw-r--r--src/rt/rust_log.cpp5
-rw-r--r--src/rt/rust_log.h20
-rw-r--r--src/rt/rust_port.cpp14
-rw-r--r--src/rt/rust_task.cpp60
-rw-r--r--src/rt/rust_task_list.cpp4
-rw-r--r--src/rt/rust_timer.cpp6
-rw-r--r--src/rt/rust_upcall.cpp118
-rw-r--r--src/rt/rust_util.h4
18 files changed, 254 insertions, 237 deletions
diff --git a/src/rt/circular_buffer.cpp b/src/rt/circular_buffer.cpp
index a466724702c..d5ba8e13c54 100644
--- a/src/rt/circular_buffer.cpp
+++ b/src/rt/circular_buffer.cpp
@@ -14,7 +14,7 @@ circular_buffer::circular_buffer(rust_dom *dom, size_t unit_sz) :
 
     A(dom, unit_sz, "Unit size must be larger than zero.");
 
-    dom->log(rust_log::MEM | rust_log::COMM,
+    DLOG(dom, rust_log::MEM | rust_log::COMM,
              "new circular_buffer(buffer_sz=%d, unread=%d)"
              "-> circular_buffer=0x%" PRIxPTR,
              _buffer_sz, _unread, this);
@@ -23,7 +23,7 @@ circular_buffer::circular_buffer(rust_dom *dom, size_t unit_sz) :
 }
 
 circular_buffer::~circular_buffer() {
-    dom->log(rust_log::MEM, "~circular_buffer 0x%" PRIxPTR, this);
+    DLOG(dom, rust_log::MEM, "~circular_buffer 0x%" PRIxPTR, this);
     I(dom, _buffer);
     W(dom, _unread == 0,
       "freeing circular_buffer with %d unread bytes", _unread);
@@ -79,7 +79,7 @@ circular_buffer::enqueue(void *src) {
         grow();
     }
 
-    dom->log(rust_log::MEM | rust_log::COMM,
+    DLOG(dom, rust_log::MEM | rust_log::COMM,
              "circular_buffer enqueue "
              "unread: %d, next: %d, buffer_sz: %d, unit_sz: %d",
              _unread, _next, _buffer_sz, unit_sz);
@@ -101,7 +101,7 @@ circular_buffer::enqueue(void *src) {
     memcpy(&_buffer[dst_idx], src, unit_sz);
     _unread += unit_sz;
 
-    dom->log(rust_log::MEM | rust_log::COMM,
+    DLOG(dom, rust_log::MEM | rust_log::COMM,
              "circular_buffer pushed data at index: %d", dst_idx);
 }
 
@@ -117,7 +117,7 @@ circular_buffer::dequeue(void *dst) {
     I(dom, _unread <= _buffer_sz);
     I(dom, _buffer);
 
-    dom->log(rust_log::MEM | rust_log::COMM,
+    DLOG(dom, rust_log::MEM | rust_log::COMM,
              "circular_buffer dequeue "
              "unread: %d, next: %d, buffer_sz: %d, unit_sz: %d",
              _unread, _next, _buffer_sz, unit_sz);
@@ -126,7 +126,7 @@ circular_buffer::dequeue(void *dst) {
     if (dst != NULL) {
         memcpy(dst, &_buffer[_next], unit_sz);
     }
-    dom->log(rust_log::MEM | rust_log::COMM,
+    DLOG(dom, rust_log::MEM | rust_log::COMM,
              "shifted data from index %d", _next);
     _unread -= unit_sz;
     _next += unit_sz;
@@ -144,7 +144,7 @@ void
 circular_buffer::grow() {
     size_t new_buffer_sz = _buffer_sz * 2;
     I(dom, new_buffer_sz <= MAX_CIRCULAR_BUFFER_SIZE);
-    dom->log(rust_log::MEM | rust_log::COMM,
+    DLOG(dom, rust_log::MEM | rust_log::COMM,
              "circular_buffer is growing to %d bytes", new_buffer_sz);
     void *new_buffer = dom->malloc(new_buffer_sz);
     transfer(new_buffer);
@@ -158,7 +158,7 @@ void
 circular_buffer::shrink() {
     size_t new_buffer_sz = _buffer_sz / 2;
     I(dom, initial_size() <= new_buffer_sz);
-    dom->log(rust_log::MEM | rust_log::COMM,
+    DLOG(dom, rust_log::MEM | rust_log::COMM,
              "circular_buffer is shrinking to %d bytes", new_buffer_sz);
     void *new_buffer = dom->malloc(new_buffer_sz);
     transfer(new_buffer);
diff --git a/src/rt/rust.cpp b/src/rt/rust.cpp
index 46fcb22ea0b..9600b4d519b 100644
--- a/src/rt/rust.cpp
+++ b/src/rt/rust.cpp
@@ -87,10 +87,10 @@ rust_start(uintptr_t main_fn, rust_crate const *crate, int argc,
     rust_dom *dom = handle->referent();
     command_line_args *args = new (dom) command_line_args(dom, argc, argv);
 
-    dom->log(rust_log::DOM, "startup: %d args in 0x%" PRIxPTR,
+    DLOG(dom, rust_log::DOM, "startup: %d args in 0x%" PRIxPTR,
              args->argc, (uintptr_t)args->args);
     for (int i = 0; i < args->argc; i++) {
-        dom->log(rust_log::DOM,
+        DLOG(dom, rust_log::DOM,
             "startup: arg[%d] = '%s'", i, args->argv[i]);
     }
 
diff --git a/src/rt/rust_builtin.cpp b/src/rt/rust_builtin.cpp
index e20cadeae49..9ef05ce0fec 100644
--- a/src/rt/rust_builtin.cpp
+++ b/src/rt/rust_builtin.cpp
@@ -6,7 +6,7 @@
 extern "C" CDECL rust_str*
 last_os_error(rust_task *task) {
     rust_dom *dom = task->dom;
-    task->log(rust_log::TASK, "last_os_error()");
+    LOG(task, rust_log::TASK, "last_os_error()");
 
 #if defined(__WIN32__)
     LPTSTR buf;
@@ -91,7 +91,7 @@ extern "C" CDECL rust_vec*
 vec_alloc(rust_task *task, type_desc *t, type_desc *elem_t, size_t n_elts)
 {
     rust_dom *dom = task->dom;
-    task->log(rust_log::MEM | rust_log::STDLIB,
+    LOG(task, rust_log::MEM | rust_log::STDLIB,
               "vec_alloc %" PRIdPTR " elements of size %" PRIdPTR,
               n_elts, elem_t->size);
     size_t fill = n_elts * elem_t->size;
@@ -126,7 +126,7 @@ vec_len(rust_task *task, type_desc *ty, rust_vec *v)
 extern "C" CDECL void
 vec_len_set(rust_task *task, type_desc *ty, rust_vec *v, size_t len)
 {
-    task->log(rust_log::STDLIB,
+    LOG(task, rust_log::STDLIB,
               "vec_len_set(0x%" PRIxPTR ", %" PRIdPTR ") on vec with "
               "alloc = %" PRIdPTR
               ", fill = %" PRIdPTR
@@ -139,7 +139,7 @@ vec_len_set(rust_task *task, type_desc *ty, rust_vec *v, size_t len)
 extern "C" CDECL void
 vec_print_debug_info(rust_task *task, type_desc *ty, rust_vec *v)
 {
-    task->log(rust_log::STDLIB,
+    LOG(task, rust_log::STDLIB,
               "vec_print_debug_info(0x%" PRIxPTR ")"
               " with tydesc 0x%" PRIxPTR
               " (size = %" PRIdPTR ", align = %" PRIdPTR ")"
@@ -154,7 +154,7 @@ vec_print_debug_info(rust_task *task, type_desc *ty, rust_vec *v)
               v->fill / ty->size);
 
     for (size_t i = 0; i < v->fill; ++i) {
-        task->log(rust_log::STDLIB,
+        LOG(task, rust_log::STDLIB,
                   "  %" PRIdPTR ":    0x%" PRIxPTR,
                   i, v->data[i]);
     }
@@ -306,7 +306,7 @@ task_sleep(rust_task *task, size_t time_in_us) {
 static void
 debug_tydesc_helper(rust_task *task, type_desc *t)
 {
-    task->log(rust_log::STDLIB,
+    LOG(task, rust_log::STDLIB,
               "  size %" PRIdPTR ", align %" PRIdPTR
               ", stateful %" PRIdPTR ", first_param 0x%" PRIxPTR,
               t->size, t->align, t->is_stateful, t->first_param);
@@ -315,19 +315,19 @@ debug_tydesc_helper(rust_task *task, type_desc *t)
 extern "C" CDECL void
 debug_tydesc(rust_task *task, type_desc *t)
 {
-    task->log(rust_log::STDLIB, "debug_tydesc");
+    LOG(task, rust_log::STDLIB, "debug_tydesc");
     debug_tydesc_helper(task, t);
 }
 
 extern "C" CDECL void
 debug_opaque(rust_task *task, type_desc *t, uint8_t *front)
 {
-    task->log(rust_log::STDLIB, "debug_opaque");
+    LOG(task, rust_log::STDLIB, "debug_opaque");
     debug_tydesc_helper(task, t);
     // FIXME may want to actually account for alignment.  `front` may not
     // indeed be the front byte of the passed-in argument.
     for (uintptr_t i = 0; i < t->size; ++front, ++i) {
-        task->log(rust_log::STDLIB,
+        LOG(task, rust_log::STDLIB,
                   "  byte %" PRIdPTR ": 0x%" PRIx8, i, *front);
     }
 }
@@ -340,14 +340,14 @@ struct rust_box : rc_base<rust_box> {
 extern "C" CDECL void
 debug_box(rust_task *task, type_desc *t, rust_box *box)
 {
-    task->log(rust_log::STDLIB, "debug_box(0x%" PRIxPTR ")", box);
+    LOG(task, rust_log::STDLIB, "debug_box(0x%" PRIxPTR ")", box);
     debug_tydesc_helper(task, t);
-    task->log(rust_log::STDLIB, "  refcount %" PRIdPTR,
+    LOG(task, rust_log::STDLIB, "  refcount %" PRIdPTR,
               box->ref_count == CONST_REFCOUNT
               ? CONST_REFCOUNT
               : box->ref_count - 1);  // -1 because we ref'ed for this call
     for (uintptr_t i = 0; i < t->size; ++i) {
-        task->log(rust_log::STDLIB,
+        LOG(task, rust_log::STDLIB,
                   "  byte %" PRIdPTR ": 0x%" PRIx8, i, box->data[i]);
     }
 }
@@ -360,13 +360,13 @@ struct rust_tag {
 extern "C" CDECL void
 debug_tag(rust_task *task, type_desc *t, rust_tag *tag)
 {
-    task->log(rust_log::STDLIB, "debug_tag");
+    LOG(task, rust_log::STDLIB, "debug_tag");
     debug_tydesc_helper(task, t);
-    task->log(rust_log::STDLIB,
+    LOG(task, rust_log::STDLIB,
               "  discriminant %" PRIdPTR, tag->discriminant);
 
     for (uintptr_t i = 0; i < t->size - sizeof(tag->discriminant); ++i)
-        task->log(rust_log::STDLIB,
+        LOG(task, rust_log::STDLIB,
                   "  byte %" PRIdPTR ": 0x%" PRIx8, i, tag->variant[i]);
 }
 
@@ -379,17 +379,17 @@ extern "C" CDECL void
 debug_obj(rust_task *task, type_desc *t, rust_obj *obj,
           size_t nmethods, size_t nbytes)
 {
-    task->log(rust_log::STDLIB,
+    LOG(task, rust_log::STDLIB,
               "debug_obj with %" PRIdPTR " methods", nmethods);
     debug_tydesc_helper(task, t);
-    task->log(rust_log::STDLIB, "  vtbl at 0x%" PRIxPTR, obj->vtbl);
-    task->log(rust_log::STDLIB, "  body at 0x%" PRIxPTR, obj->body);
+    LOG(task, rust_log::STDLIB, "  vtbl at 0x%" PRIxPTR, obj->vtbl);
+    LOG(task, rust_log::STDLIB, "  body at 0x%" PRIxPTR, obj->body);
 
     for (uintptr_t *p = obj->vtbl; p < obj->vtbl + nmethods; ++p)
-        task->log(rust_log::STDLIB, "  vtbl word: 0x%" PRIxPTR, *p);
+        LOG(task, rust_log::STDLIB, "  vtbl word: 0x%" PRIxPTR, *p);
 
     for (uintptr_t i = 0; i < nbytes; ++i)
-        task->log(rust_log::STDLIB,
+        LOG(task, rust_log::STDLIB,
                   "  body byte %" PRIdPTR ": 0x%" PRIxPTR,
                   i, obj->body->data[i]);
 }
@@ -402,12 +402,12 @@ struct rust_fn {
 extern "C" CDECL void
 debug_fn(rust_task *task, type_desc *t, rust_fn *fn)
 {
-    task->log(rust_log::STDLIB, "debug_fn");
+    LOG(task, rust_log::STDLIB, "debug_fn");
     debug_tydesc_helper(task, t);
-    task->log(rust_log::STDLIB, "  thunk at 0x%" PRIxPTR, fn->thunk);
-    task->log(rust_log::STDLIB, "  closure at 0x%" PRIxPTR, fn->closure);
+    LOG(task, rust_log::STDLIB, "  thunk at 0x%" PRIxPTR, fn->thunk);
+    LOG(task, rust_log::STDLIB, "  closure at 0x%" PRIxPTR, fn->closure);
     if (fn->closure) {
-        task->log(rust_log::STDLIB, "    refcount %" PRIdPTR,
+        LOG(task, rust_log::STDLIB, "    refcount %" PRIdPTR,
                   fn->closure->ref_count);
     }
 }
@@ -418,9 +418,9 @@ debug_ptrcast(rust_task *task,
               type_desc *to_ty,
               void *ptr)
 {
-    task->log(rust_log::STDLIB, "debug_ptrcast from");
+    LOG(task, rust_log::STDLIB, "debug_ptrcast from");
     debug_tydesc_helper(task, from_ty);
-    task->log(rust_log::STDLIB, "to");
+    LOG(task, rust_log::STDLIB, "to");
     debug_tydesc_helper(task, to_ty);
     return ptr;
 }
@@ -428,7 +428,7 @@ debug_ptrcast(rust_task *task,
 extern "C" CDECL void
 debug_trap(rust_task *task, rust_str *s)
 {
-    task->log(rust_log::STDLIB, "trapping: %s", s->data);
+    LOG(task, rust_log::STDLIB, "trapping: %s", s->data);
     // FIXME: x86-ism.
     __asm__("int3");
 }
diff --git a/src/rt/rust_chan.cpp b/src/rt/rust_chan.cpp
index 9a6664535cf..a88579607c4 100644
--- a/src/rt/rust_chan.cpp
+++ b/src/rt/rust_chan.cpp
@@ -13,14 +13,14 @@ rust_chan::rust_chan(rust_task *task,
     if (port) {
         associate(port);
     }
-    task->log(rust_log::MEM | rust_log::COMM,
+    LOG(task, rust_log::MEM | rust_log::COMM,
               "new rust_chan(task=0x%" PRIxPTR
               ", port=0x%" PRIxPTR ") -> chan=0x%" PRIxPTR,
               (uintptr_t) task, (uintptr_t) port, (uintptr_t) this);
 }
 
 rust_chan::~rust_chan() {
-    task->log(rust_log::MEM | rust_log::COMM,
+    LOG(task, rust_log::MEM | rust_log::COMM,
               "del rust_chan(task=0x%" PRIxPTR ")", (uintptr_t) this);
 
     A(task->dom, is_associated() == false,
@@ -33,7 +33,7 @@ rust_chan::~rust_chan() {
 void rust_chan::associate(maybe_proxy<rust_port> *port) {
     this->port = port;
     if (port->is_proxy() == false) {
-        task->log(rust_log::TASK,
+        LOG(task, rust_log::TASK,
             "associating chan: 0x%" PRIxPTR " with port: 0x%" PRIxPTR,
             this, port);
         this->port->referent()->chans.push(this);
@@ -51,7 +51,7 @@ void rust_chan::disassociate() {
     A(task->dom, is_associated(), "Channel must be associated with a port.");
 
     if (port->is_proxy() == false) {
-        task->log(rust_log::TASK,
+        LOG(task, rust_log::TASK,
             "disassociating chan: 0x%" PRIxPTR " from port: 0x%" PRIxPTR,
             this, port->referent());
         port->referent()->chans.swap_delete(this);
@@ -84,7 +84,7 @@ void rust_chan::send(void *sptr) {
     } else {
         rust_port *target_port = port->referent();
         if (target_port->task->blocked_on(target_port)) {
-            dom->log(rust_log::COMM, "dequeued in rendezvous_ptr");
+            DLOG(dom, rust_log::COMM, "dequeued in rendezvous_ptr");
             buffer.dequeue(target_port->task->rendezvous_ptr);
             target_port->task->rendezvous_ptr = 0;
             target_port->task->wakeup(target_port);
diff --git a/src/rt/rust_crate.cpp b/src/rt/rust_crate.cpp
index ced6aaf46a7..23f01c0747f 100644
--- a/src/rt/rust_crate.cpp
+++ b/src/rt/rust_crate.cpp
@@ -41,7 +41,7 @@ rust_crate::mem_area::mem_area(rust_dom *dom, uintptr_t pos, size_t sz)
     base(pos),
     lim(pos + sz)
 {
-  dom->log(rust_log::MEM, "new mem_area [0x%" PRIxPTR ",0x%" PRIxPTR "]",
+  DLOG(dom, rust_log::MEM, "new mem_area [0x%" PRIxPTR ",0x%" PRIxPTR "]",
            base, lim);
 }
 
diff --git a/src/rt/rust_crate_cache.cpp b/src/rt/rust_crate_cache.cpp
index 9fc1ae1856d..f9cc400d76b 100644
--- a/src/rt/rust_crate_cache.cpp
+++ b/src/rt/rust_crate_cache.cpp
@@ -10,12 +10,12 @@ rust_crate_cache::lib::lib(rust_dom *dom, char const *name)
 #else
     handle = (uintptr_t)dlopen(name, RTLD_GLOBAL|RTLD_LAZY);
 #endif
-    dom->log(rust_log::CACHE, "loaded library '%s' as 0x%"  PRIxPTR,
+    DLOG(dom, rust_log::CACHE, "loaded library '%s' as 0x%"  PRIxPTR,
              name, handle);
 }
 
 rust_crate_cache::lib::~lib() {
-    dom->log(rust_log::CACHE, "~rust_crate_cache::lib(0x%" PRIxPTR ")",
+    DLOG(dom, rust_log::CACHE, "~rust_crate_cache::lib(0x%" PRIxPTR ")",
              handle);
     if (handle) {
 #if defined(__WIN32__)
@@ -46,17 +46,17 @@ rust_crate_cache::c_sym::c_sym(rust_dom *dom, lib *library, char const *name)
 #else
         val = (uintptr_t)dlsym((void*)handle, name);
 #endif
-        dom->log(rust_log::CACHE, "resolved symbol '%s' to 0x%"  PRIxPTR,
+        DLOG(dom, rust_log::CACHE, "resolved symbol '%s' to 0x%"  PRIxPTR,
                  name, val);
     } else {
-        dom->log(rust_log::CACHE | rust_log::ERR,
+        DLOG(dom, rust_log::CACHE | rust_log::ERR,
                  "unresolved symbol '%s', null lib handle",
                  name);
     }
 }
 
 rust_crate_cache::c_sym::~c_sym() {
-    dom->log(rust_log::CACHE,
+    DLOG(dom, rust_log::CACHE,
             "~rust_crate_cache::c_sym(0x%" PRIxPTR ")", val);
     library->deref();
 }
@@ -80,7 +80,7 @@ rust_crate_cache::rust_sym::rust_sym(rust_dom *dom,
     typedef rust_crate_reader::die die;
     rust_crate const *crate = (rust_crate*)crate_sym->get_val();
     if (!crate) {
-        dom->log(rust_log::CACHE | rust_log::ERR,
+        DLOG(dom, rust_log::CACHE | rust_log::ERR,
                  "failed to resolve symbol, null crate symbol");
         return;
     }
@@ -98,15 +98,15 @@ rust_crate_cache::rust_sym::rust_sym(rust_dom *dom,
               && !t1.is_null()
               && t1.find_child_by_name(crate_rel(curr_crate, *c), t2));
              ++c, t1=t2) {
-            dom->log(rust_log::DWARF|rust_log::CACHE,
+            DLOG(dom, rust_log::DWARF|rust_log::CACHE,
                     "matched die <0x%"  PRIxPTR
                     ">, child '%s' = die<0x%" PRIxPTR ">",
                     t1.off, crate_rel(curr_crate, *c), t2.off);
             found_root = found_root || true;
             if (!*(c+1) && t2.find_num_attr(DW_AT_low_pc, val)) {
-                dom->log(rust_log::DWARF|rust_log::CACHE,
+                DLOG(dom, rust_log::DWARF|rust_log::CACHE,
                          "found relative address: 0x%"  PRIxPTR, val);
-                dom->log(rust_log::DWARF|rust_log::CACHE,
+                DLOG(dom, rust_log::DWARF|rust_log::CACHE,
                          "plus image-base 0x%"  PRIxPTR,
                          crate->get_image_base());
                 val += crate->get_image_base();
@@ -118,15 +118,15 @@ rust_crate_cache::rust_sym::rust_sym(rust_dom *dom,
             break;
     }
     if (found_leaf) {
-        dom->log(rust_log::CACHE, "resolved symbol to 0x%"  PRIxPTR, val);
+        DLOG(dom, rust_log::CACHE, "resolved symbol to 0x%"  PRIxPTR, val);
     } else {
-        dom->log(rust_log::CACHE | rust_log::ERR,
+        DLOG(dom, rust_log::CACHE | rust_log::ERR,
                  "failed to resolve symbol");
     }
 }
 
 rust_crate_cache::rust_sym::~rust_sym() {
-    dom->log(rust_log::CACHE,
+    DLOG(dom, rust_log::CACHE,
              "~rust_crate_cache::rust_sym(0x%" PRIxPTR ")", val);
     crate_sym->deref();
 }
@@ -155,7 +155,7 @@ rust_crate_cache::get_c_sym(size_t n, lib *library, char const *name)
 {
     I(dom, n < crate->n_c_syms);
     c_sym *sym = c_syms[n];
-    dom->log(rust_log::CACHE, "cached C symbol %s = 0x%" PRIxPTR, name, sym);
+    DLOG(dom, rust_log::CACHE, "cached C symbol %s = 0x%" PRIxPTR, name, sym);
     if (!sym) {
         sym = new (dom) c_sym(dom, library, name);
         c_syms[n] = sym;
@@ -199,10 +199,10 @@ rust_crate_cache::get_type_desc(size_t size,
     size_t keysz = n_descs * sizeof(type_desc*);
     HASH_FIND(hh, this->type_descs, descs, keysz, td);
     if (td) {
-        dom->log(rust_log::CACHE, "rust_crate_cache::get_type_desc hit");
+        DLOG(dom, rust_log::CACHE, "rust_crate_cache::get_type_desc hit");
         return td;
     }
-    dom->log(rust_log::CACHE, "rust_crate_cache::get_type_desc miss");
+    DLOG(dom, rust_log::CACHE, "rust_crate_cache::get_type_desc miss");
     td = (type_desc*) dom->malloc(sizeof(type_desc) + keysz);
     if (!td)
         return NULL;
@@ -214,7 +214,7 @@ rust_crate_cache::get_type_desc(size_t size,
     td->size = size;
     td->align = align;
     for (size_t i = 0; i < n_descs; ++i) {
-        dom->log(rust_log::CACHE,
+        DLOG(dom, rust_log::CACHE,
                  "rust_crate_cache::descs[%" PRIdPTR "] = 0x%" PRIxPTR,
                  i, descs[i]);
         td->descs[i] = descs[i];
@@ -249,11 +249,11 @@ rust_crate_cache::rust_crate_cache(rust_dom *dom,
 
 void
 rust_crate_cache::flush() {
-    dom->log(rust_log::CACHE, "rust_crate_cache::flush()");
+    DLOG(dom, rust_log::CACHE, "rust_crate_cache::flush()");
     for (size_t i = 0; i < crate->n_rust_syms; ++i) {
         rust_sym *s = rust_syms[i];
         if (s) {
-            dom->log(rust_log::CACHE,
+            DLOG(dom, rust_log::CACHE,
                      "rust_crate_cache::flush() deref rust_sym %"
                      PRIdPTR " (rc=%" PRIdPTR ")", i, s->ref_count);
             s->deref();
@@ -264,7 +264,7 @@ rust_crate_cache::flush() {
     for (size_t i = 0; i < crate->n_c_syms; ++i) {
         c_sym *s = c_syms[i];
         if (s) {
-            dom->log(rust_log::CACHE,
+            DLOG(dom, rust_log::CACHE,
                      "rust_crate_cache::flush() deref c_sym %"
                      PRIdPTR " (rc=%" PRIdPTR ")", i, s->ref_count);
             s->deref();
@@ -275,7 +275,7 @@ rust_crate_cache::flush() {
     for (size_t i = 0; i < crate->n_libs; ++i) {
         lib *l = libs[i];
         if (l) {
-            dom->log(rust_log::CACHE, "rust_crate_cache::flush() deref lib %"
+            DLOG(dom, rust_log::CACHE, "rust_crate_cache::flush() deref lib %"
                      PRIdPTR " (rc=%" PRIdPTR ")", i, l->ref_count);
             l->deref();
         }
@@ -285,7 +285,7 @@ rust_crate_cache::flush() {
     while (type_descs) {
         type_desc *d = type_descs;
         HASH_DEL(type_descs, d);
-        dom->log(rust_log::MEM,
+        DLOG(dom, rust_log::MEM,
                  "rust_crate_cache::flush() tydesc %" PRIxPTR, d);
         dom->free(d);
     }
diff --git a/src/rt/rust_crate_reader.cpp b/src/rt/rust_crate_reader.cpp
index f0e6fa934cc..edad0c2eeee 100644
--- a/src/rt/rust_crate_reader.cpp
+++ b/src/rt/rust_crate_reader.cpp
@@ -92,7 +92,7 @@ rust_crate_reader::mem_reader::adv(size_t amt)
     ok = false;
   if (!ok)
     return;
-  // mem.dom->log(rust_log::MEM, "adv %d bytes", amt);
+  // mem.DLOG(dom, rust_log::MEM, "adv %d bytes", amt);
   pos += amt;
   ok &= !at_end();
   I(mem.dom, at_end() || (mem.base <= pos && pos < mem.lim));
@@ -120,7 +120,7 @@ rust_crate_reader::abbrev_reader::abbrev_reader
   rust_dom *dom = mem.dom;
   while (is_ok() && !at_end()) {
 
-    // dom->log(rust_log::DWARF, "reading new abbrev at 0x%" PRIxPTR,
+    // DLOG(dom, rust_log::DWARF, "reading new abbrev at 0x%" PRIxPTR,
     //          tell_off());
 
     uintptr_t idx, tag;
@@ -133,13 +133,13 @@ rust_crate_reader::abbrev_reader::abbrev_reader
     size_t body_off = tell_off();
     while (is_ok() && step_attr_form_pair(attr, form));
 
-    // dom->log(rust_log::DWARF,
+    // DLOG(dom, rust_log::DWARF,
     //         "finished scanning attr/form pairs, pos=0x%"
     //         PRIxPTR ", lim=0x%" PRIxPTR ", is_ok=%d, at_end=%d",
     //        pos, mem.lim, is_ok(), at_end());
 
     if (is_ok() || at_end()) {
-      dom->log(rust_log::DWARF, "read abbrev: %" PRIdPTR, idx);
+      DLOG(dom, rust_log::DWARF, "read abbrev: %" PRIdPTR, idx);
       I(dom, idx = abbrevs.length() + 1);
       abbrevs.push(new (dom) abbrev(dom, body_off,
                                     tell_off() - body_off,
@@ -162,11 +162,11 @@ rust_crate_reader::abbrev_reader::step_attr_form_pair(uintptr_t &attr,
 {
   attr = 0;
   form = 0;
-  // mem.dom->log(rust_log::DWARF, "reading attr/form pair at 0x%" PRIxPTR,
+  // mem.DLOG(dom, rust_log::DWARF, "reading attr/form pair at 0x%" PRIxPTR,
   //              tell_off());
   get_uleb(attr);
   get_uleb(form);
-  // mem.dom->log(rust_log::DWARF, "attr 0x%" PRIxPTR ", form 0x%" PRIxPTR,
+  // mem.DLOG(dom, rust_log::DWARF, "attr 0x%" PRIxPTR ", form 0x%" PRIxPTR,
   //              attr, form);
   return ! (attr == 0 && form == 0);
 }
@@ -254,18 +254,19 @@ rust_crate_reader::die::die(die_reader *rdr, uintptr_t off)
   rdr->get_uleb(ab_idx);
   if (!ab_idx) {
     ab = NULL;
-    dom->log(rust_log::DWARF, "DIE <0x%" PRIxPTR "> (null)", off);
-    dom->get_log().outdent();
+    DLOG(dom, rust_log::DWARF, "DIE <0x%" PRIxPTR "> (null)", off);
+    if (dom->get_log().is_tracing(rust_log::DWARF))
+        dom->get_log().outdent();
   } else {
     ab = rdr->abbrevs.get_abbrev(ab_idx);
     if (!ab) {
-        dom->log(rust_log::DWARF, "  bad abbrev number: 0x%"
+        DLOG(dom, rust_log::DWARF, "  bad abbrev number: 0x%"
                  PRIxPTR, ab_idx);
         rdr->fail();
     } else {
-        dom->log(rust_log::DWARF, "DIE <0x%" PRIxPTR "> abbrev 0x%"
+        DLOG(dom, rust_log::DWARF, "DIE <0x%" PRIxPTR "> abbrev 0x%"
                  PRIxPTR, off, ab_idx);
-        dom->log(rust_log::DWARF, "  tag 0x%x, has children: %d",
+        DLOG(dom, rust_log::DWARF, "  tag 0x%x, has children: %d",
                  ab->tag, ab->has_children);
     }
   }
@@ -353,7 +354,7 @@ rust_crate_reader::die::step_attr(attr &a) const
       break;
 
     default:
-      rdr->mem.dom->log(rust_log::DWARF, "  unknown dwarf form: 0x%"
+      DLOG(rdr->mem.dom, rust_log::DWARF, "  unknown dwarf form: 0x%"
                         PRIxPTR, a.form);
       rdr->fail();
       break;
@@ -473,16 +474,16 @@ rust_crate_reader::die::next() const
         while (step_attr(a)) {
             I(dom, !(a.is_numeric() && a.is_string()));
             if (a.is_numeric())
-                dom->log(rust_log::DWARF, "  attr num: 0x%"
+                DLOG(dom, rust_log::DWARF, "  attr num: 0x%"
                          PRIxPTR, a.get_num(dom));
             else if (a.is_string())
-                dom->log(rust_log::DWARF, "  attr str: %s",
+                DLOG(dom, rust_log::DWARF, "  attr str: %s",
                          a.get_str(dom));
             else
-                dom->log(rust_log::DWARF, "  attr ??:");
+                DLOG(dom, rust_log::DWARF, "  attr ??:");
         }
     }
-    if (has_children())
+    if (has_children() && dom->get_log().is_tracing(rust_log::DWARF))
         dom->get_log().indent();
   }
   return die(rdr, rdr->tell_off());
@@ -493,12 +494,12 @@ rust_crate_reader::die::next_sibling() const
 {
   // FIXME: use DW_AT_sibling, when present.
   if (has_children()) {
-    // rdr->mem.dom->log(rust_log::DWARF, "+++ children of die 0x%"
+    // DLOG(rdr->mem.dom, rust_log::DWARF, "+++ children of die 0x%"
     //                   PRIxPTR, off);
     die child = next();
     while (!child.is_null())
       child = child.next_sibling();
-    // rdr->mem.dom->log(rust_log::DWARF, "--- children of die 0x%"
+    // DLOG(rdr->mem.dom, rust_log::DWARF, "--- children of die 0x%"
     //                   PRIxPTR, off);
     return child.next();
   } else {
@@ -553,16 +554,16 @@ rust_crate_reader::die_reader::die_reader(rust_crate::mem_area &die_mem,
   get(sizeof_addr);
 
   if (is_ok()) {
-    dom->log(rust_log::DWARF, "new root CU at 0x%" PRIxPTR, die_mem.base);
-    dom->log(rust_log::DWARF, "CU unit length: %" PRId32, cu_unit_length);
-    dom->log(rust_log::DWARF, "dwarf version: %" PRId16, dwarf_vers);
-    dom->log(rust_log::DWARF, "CU abbrev off: %" PRId32, cu_abbrev_off);
-    dom->log(rust_log::DWARF, "size of address: %" PRId8, sizeof_addr);
+    DLOG(dom, rust_log::DWARF, "new root CU at 0x%" PRIxPTR, die_mem.base);
+    DLOG(dom, rust_log::DWARF, "CU unit length: %" PRId32, cu_unit_length);
+    DLOG(dom, rust_log::DWARF, "dwarf version: %" PRId16, dwarf_vers);
+    DLOG(dom, rust_log::DWARF, "CU abbrev off: %" PRId32, cu_abbrev_off);
+    DLOG(dom, rust_log::DWARF, "size of address: %" PRId8, sizeof_addr);
     I(dom, sizeof_addr == sizeof(uintptr_t));
     I(dom, dwarf_vers >= 2);
     I(dom, cu_base + cu_unit_length == die_mem.lim - die_mem.base);
   } else {
-    dom->log(rust_log::DWARF, "failed to read root CU header");
+    DLOG(dom, rust_log::DWARF, "failed to read root CU header");
   }
 }
 
@@ -579,9 +580,9 @@ rust_crate_reader::rust_crate_reader(rust_dom *dom,
     die_mem(crate->get_debug_info(dom)),
     dies(die_mem, abbrevs)
 {
-  dom->log(rust_log::MEM, "crate_reader on crate: 0x%" PRIxPTR, this);
-  dom->log(rust_log::MEM, "debug_abbrev: 0x%" PRIxPTR, abbrev_mem.base);
-  dom->log(rust_log::MEM, "debug_info: 0x%" PRIxPTR, die_mem.base);
+  DLOG(dom, rust_log::MEM, "crate_reader on crate: 0x%" PRIxPTR, this);
+  DLOG(dom, rust_log::MEM, "debug_abbrev: 0x%" PRIxPTR, abbrev_mem.base);
+  DLOG(dom, rust_log::MEM, "debug_info: 0x%" PRIxPTR, die_mem.base);
   // For now, perform diagnostics only.
   dies.dump();
 }
diff --git a/src/rt/rust_dom.cpp b/src/rt/rust_dom.cpp
index 356e9fe49ba..9512eeaa3cc 100644
--- a/src/rt/rust_dom.cpp
+++ b/src/rt/rust_dom.cpp
@@ -23,7 +23,7 @@ rust_dom::rust_dom(rust_kernel *kernel,
     kernel(kernel),
     message_queue(message_queue)
 {
-    logptr("new dom", (uintptr_t)this);
+    LOGPTR(this, "new dom", (uintptr_t)this);
     isaac_init(this, &rctx);
 #ifndef __WIN32__
     pthread_attr_init(&attr);
@@ -34,8 +34,8 @@ rust_dom::rust_dom(rust_kernel *kernel,
 }
 
 rust_dom::~rust_dom() {
-    log(rust_log::MEM | rust_log::DOM,
-        "~rust_dom %s @0x%" PRIxPTR, name, (uintptr_t)this);
+    DLOG(this, rust_log::MEM | rust_log::DOM,
+         "~rust_dom %s @0x%" PRIxPTR, name, (uintptr_t)this);
     newborn_tasks.delete_all();
     running_tasks.delete_all();
     blocked_tasks.delete_all();
@@ -79,11 +79,6 @@ rust_dom::log(uint32_t type_bits, char const *fmt, ...) {
     }
 }
 
-rust_log &
-rust_dom::get_log() {
-    return _log;
-}
-
 void
 rust_dom::logptr(char const *msg, uintptr_t ptrval) {
     log(rust_log::MEM, "%s 0x%" PRIxPTR, msg, ptrval);
@@ -156,7 +151,7 @@ rust_dom::free(void *mem) {
 
 void
 rust_dom::free(void *mem, memory_region::memory_region_type type) {
-    log(rust_log::MEM, "rust_dom::free(0x%" PRIxPTR ")", mem);
+    DLOG(this, rust_log::MEM, "rust_dom::free(0x%" PRIxPTR ")", mem);
     if (type == memory_region::LOCAL) {
         local_region.free(mem);
     } else if (type == memory_region::SYNCHRONIZED) {
@@ -177,7 +172,8 @@ rust_dom::win32_require(LPCTSTR fn, BOOL ok) {
                       NULL, err,
                       MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
                       (LPTSTR) &buf, 0, NULL );
-        log(rust_log::ERR, "%s failed with error %ld: %s", fn, err, buf);
+        DLOG(this, rust_log::ERR, "%s failed with error %ld: %s",
+             fn, err, buf);
         LocalFree((HLOCAL)buf);
         I(this, ok);
     }
@@ -199,7 +195,7 @@ rust_dom::reap_dead_tasks() {
         if (task->ref_count == 0) {
             I(this, task->tasks_waiting_to_join.is_empty());
             dead_tasks.remove(task);
-            log(rust_log::TASK,
+            DLOG(this, rust_log::TASK,
                 "deleting unreferenced dead task %s @0x%" PRIxPTR,
                 task->name, task);
             delete task;
@@ -215,7 +211,7 @@ rust_dom::reap_dead_tasks() {
 void rust_dom::drain_incoming_message_queue(bool process) {
     rust_message *message;
     while (message_queue->dequeue(&message)) {
-        log(rust_log::COMM, "<== receiving \"%s\" " PTR,
+        DLOG(this, rust_log::COMM, "<== receiving \"%s\" " PTR,
             message->label, message);
         if (process) {
             message->process();
@@ -292,8 +288,8 @@ rust_dom::start_main_loop() {
     // Make sure someone is watching, to pull us out of infinite loops.
     rust_timer timer(this);
 
-    log(rust_log::DOM, "started domain loop");
-    log(rust_log::DOM | rust_log::MEM,
+    DLOG(this, rust_log::DOM, "started domain loop");
+    DLOG(this, rust_log::DOM | rust_log::MEM,
         "activate glue: " PTR ", exit glue: " PTR,
         root_crate->get_activate_glue(), root_crate->get_exit_task_glue());
 
@@ -312,17 +308,17 @@ rust_dom::start_main_loop() {
             if (_log.is_tracing(rust_log::TASK)) {
                 log_state();
             }
-            log(rust_log::TASK,
+            DLOG(this, rust_log::TASK,
                 "all tasks are blocked, scheduler yielding ...");
             sync::sleep(100);
-            log(rust_log::TASK,
+            DLOG(this, rust_log::TASK,
                 "scheduler resuming ...");
             continue;
         }
 
         I(this, scheduled_task->running());
 
-        log(rust_log::TASK,
+        DLOG(this, rust_log::TASK,
             "activating task %s 0x%" PRIxPTR
             ", sp=0x%" PRIxPTR
             ", ref_count=%d"
@@ -337,7 +333,7 @@ rust_dom::start_main_loop() {
 
         activate(scheduled_task);
 
-        log(rust_log::TASK,
+        DLOG(this, rust_log::TASK,
                  "returned from task %s @0x%" PRIxPTR
                  " in state '%s', sp=0x%" PRIxPTR,
                  scheduled_task->name,
@@ -352,11 +348,12 @@ rust_dom::start_main_loop() {
         reap_dead_tasks();
     }
 
-    log(rust_log::DOM, "terminated scheduler loop, reaping dead tasks ...");
+    DLOG(this, rust_log::DOM,
+         "terminated scheduler loop, reaping dead tasks ...");
 
     while (dead_tasks.length() > 0) {
         if (message_queue->is_empty()) {
-            log(rust_log::DOM,
+            DLOG(this, rust_log::DOM,
                 "waiting for %d dead tasks to become dereferenced, "
                 "scheduler yielding ...",
                 dead_tasks.length());
@@ -370,14 +367,14 @@ rust_dom::start_main_loop() {
         reap_dead_tasks();
     }
 
-    log(rust_log::DOM, "finished main-loop (dom.rval = %d)", rval);
+    DLOG(this, rust_log::DOM, "finished main-loop (dom.rval = %d)", rval);
     return rval;
 }
 
 
 rust_crate_cache *
 rust_dom::get_cache(rust_crate const *crate) {
-    log(rust_log::CACHE,
+    DLOG(this, rust_log::CACHE,
         "looking for crate-cache for crate 0x%" PRIxPTR, crate);
     rust_crate_cache *cache = NULL;
     for (size_t i = 0; i < caches.length(); ++i) {
@@ -388,7 +385,7 @@ rust_dom::get_cache(rust_crate const *crate) {
         }
     }
     if (!cache) {
-        log(rust_log::CACHE,
+        DLOG(this, rust_log::CACHE,
             "making new crate-cache for crate 0x%" PRIxPTR, crate);
         cache = new (this) rust_crate_cache(this, crate);
         caches.push(cache);
@@ -401,7 +398,7 @@ rust_task *
 rust_dom::create_task(rust_task *spawner, const char *name) {
     rust_task *task =
         new (this) rust_task (this, &newborn_tasks, spawner, name);
-    log(rust_log::TASK, "created task: " PTR ", spawner: %s, name: %s",
+    DLOG(this, rust_log::TASK, "created task: " PTR ", spawner: %s, name: %s",
                         task, spawner ? spawner->name : "null", name);
     newborn_tasks.append(task);
     return task;
diff --git a/src/rt/rust_dom.h b/src/rt/rust_dom.h
index 8aa24192747..be3ca2f9f18 100644
--- a/src/rt/rust_dom.h
+++ b/src/rt/rust_dom.h
@@ -88,6 +88,11 @@ struct rust_dom : public kernel_owned<rust_dom>, rc_base<rust_dom>
     rust_task *create_task(rust_task *spawner, const char *name);
 };
 
+inline rust_log &
+rust_dom::get_log() {
+    return _log;
+}
+
 //
 // Local Variables:
 // mode: C++
diff --git a/src/rt/rust_kernel.cpp b/src/rt/rust_kernel.cpp
index df6b655a45b..9b8347bc1f8 100644
--- a/src/rt/rust_kernel.cpp
+++ b/src/rt/rust_kernel.cpp
@@ -1,5 +1,10 @@
 #include "rust_internal.h"
 
+#define KLOG(...)                                 \
+  if (_log.is_tracing(rust_log::KERN)) {          \
+      log(rust_log::KERN, __VA_ARGS__);           \
+  } else
+
 rust_kernel::rust_kernel(rust_srv *srv) :
     _region(&srv->local_region),
     _log(srv, NULL),
@@ -20,9 +25,8 @@ rust_kernel::create_domain(const rust_crate *crate, const char *name) {
     message_queue->associate(handle);
     domains.append(dom);
     message_queues.append(message_queue);
-    log(rust_log::KERN | rust_log::TASK,
-        "created domain: " PTR ", name: %s, index: %d, domains %d",
-        dom, name, dom->list_index, domains.length());
+    KLOG("created domain: " PTR ", name: %s, index: %d, domains %d",
+         dom, name, dom->list_index, domains.length());
     _kernel_lock.signal_all();
     _kernel_lock.unlock();
     return handle;
@@ -31,8 +35,7 @@ rust_kernel::create_domain(const rust_crate *crate, const char *name) {
 void
 rust_kernel::destroy_domain(rust_dom *dom) {
     _kernel_lock.lock();
-    log(rust_log::KERN,
-        "deleting domain: " PTR ", name: %s, index: %d, domains %d",
+    KLOG("deleting domain: " PTR ", name: %s, index: %d, domains %d",
         dom, dom->name, dom->list_index, domains.length());
     domains.remove(dom);
     dom->message_queue->disassociate();
@@ -98,12 +101,12 @@ rust_kernel::join_all_domains() {
         _kernel_lock.wait();
     }
     _kernel_lock.unlock();
-    log(rust_log::KERN, "joined domains");
+    KLOG("joined domains");
 }
 
 void
 rust_kernel::log_all_domain_state() {
-    log(rust_log::KERN, "log_all_domain_state: %d domains", domains.length());
+    KLOG("log_all_domain_state: %d domains", domains.length());
     for (uint32_t i = 0; i < domains.length(); i++) {
         domains[i]->log_state();
     }
@@ -155,14 +158,14 @@ rust_kernel::start_kernel_loop() {
 
 void
 rust_kernel::run() {
-    log(rust_log::KERN, "started kernel loop");
+    KLOG("started kernel loop");
     start_kernel_loop();
-    log(rust_log::KERN, "finished kernel loop");
+    KLOG("finished kernel loop");
 }
 
 void
 rust_kernel::terminate_kernel_loop() {
-    log(rust_log::KERN, "terminating kernel loop");
+    KLOG("terminating kernel loop");
     _interrupt_kernel_loop = true;
     signal_kernel_lock();
     join();
@@ -181,13 +184,13 @@ rust_kernel::~rust_kernel() {
     // messages.
     pump_message_queues();
 
-    log(rust_log::KERN, "freeing handles");
+    KLOG("freeing handles");
 
     free_handles(_task_handles);
     free_handles(_port_handles);
     free_handles(_dom_handles);
 
-    log(rust_log::KERN, "freeing queues");
+    KLOG("freeing queues");
 
     rust_message_queue *queue = NULL;
     while (message_queues.pop(&queue)) {
diff --git a/src/rt/rust_log.cpp b/src/rt/rust_log.cpp
index bcd40c364b5..3017b549263 100644
--- a/src/rt/rust_log.cpp
+++ b/src/rt/rust_log.cpp
@@ -204,11 +204,6 @@ rust_log::trace_ln(rust_task *task, ansi_color color,
     }
 }
 
-bool
-rust_log::is_tracing(uint32_t type_bits) {
-    return type_bits & _type_bit_mask;
-}
-
 void
 rust_log::indent() {
     _indent++;
diff --git a/src/rt/rust_log.h b/src/rt/rust_log.h
index 59aa504f694..8d3d4bcb9ca 100644
--- a/src/rt/rust_log.h
+++ b/src/rt/rust_log.h
@@ -1,6 +1,21 @@
 #ifndef RUST_LOG_H
 #define RUST_LOG_H
 
+#define DLOG(dom, mask, ...)                      \
+  if ((dom)->get_log().is_tracing(mask)) {        \
+      (dom)->log(mask, __VA_ARGS__);              \
+  } else
+#define LOG(task, mask, ...)                      \
+  DLOG((task)->dom, mask, __VA_ARGS__)
+#define LOG_I(task, mask, ...)                    \
+  if ((task)->dom->get_log().is_tracing(mask)) {  \
+      (task)->dom->get_log().reset_indent(0);     \
+      (task)->dom->log(mask, __VA_ARGS__);        \
+      (task)->dom->get_log().indent();            \
+  } else
+#define LOGPTR(dom, msg, ptrval)                  \
+  DLOG(dom, rust_log::MEM, "%s 0x%" PRIxPTR, msg, ptrval)
+
 class rust_dom;
 class rust_task;
 
@@ -65,4 +80,9 @@ private:
     void trace_ln(rust_task *task, char *message);
 };
 
+inline bool
+rust_log::is_tracing(uint32_t type_bits) {
+    return type_bits & _type_bit_mask;
+}
+
 #endif /* RUST_LOG_H */
diff --git a/src/rt/rust_port.cpp b/src/rt/rust_port.cpp
index 82054687f2f..178b46a702b 100644
--- a/src/rt/rust_port.cpp
+++ b/src/rt/rust_port.cpp
@@ -5,7 +5,7 @@ rust_port::rust_port(rust_task *task, size_t unit_sz) :
                      maybe_proxy<rust_port>(this), task(task),
                      unit_sz(unit_sz), writers(task->dom), chans(task->dom) {
 
-    task->log(rust_log::MEM | rust_log::COMM,
+    LOG(task, rust_log::MEM | rust_log::COMM,
               "new rust_port(task=0x%" PRIxPTR ", unit_sz=%d) -> port=0x%"
               PRIxPTR, (uintptr_t)task, unit_sz, (uintptr_t)this);
 
@@ -14,10 +14,10 @@ rust_port::rust_port(rust_task *task, size_t unit_sz) :
 }
 
 rust_port::~rust_port() {
-    task->log(rust_log::COMM | rust_log::MEM,
+    LOG(task, rust_log::COMM | rust_log::MEM,
               "~rust_port 0x%" PRIxPTR, (uintptr_t) this);
 
-    log_state();
+    //    log_state();
 
     // Disassociate channels from this port.
     while (chans.is_empty() == false) {
@@ -25,7 +25,7 @@ rust_port::~rust_port() {
         chan->disassociate();
 
         if (chan->ref_count == 0) {
-            task->log(rust_log::COMM,
+            LOG(task, rust_log::COMM,
                 "chan: 0x%" PRIxPTR " is dormant, freeing", chan);
             delete chan;
         }
@@ -39,7 +39,7 @@ bool rust_port::receive(void *dptr) {
         rust_chan *chan = chans[i];
         if (chan->buffer.is_empty() == false) {
             chan->buffer.dequeue(dptr);
-            task->log(rust_log::COMM, "<=== read data ===");
+            LOG(task, rust_log::COMM, "<=== read data ===");
             return true;
         }
     }
@@ -47,12 +47,12 @@ bool rust_port::receive(void *dptr) {
 }
 
 void rust_port::log_state() {
-    task->log(rust_log::COMM,
+    LOG(task, rust_log::COMM,
               "rust_port: 0x%" PRIxPTR ", associated channel(s): %d",
               this, chans.length());
     for (uint32_t i = 0; i < chans.length(); i++) {
         rust_chan *chan = chans[i];
-        task->log(rust_log::COMM,
+        LOG(task, rust_log::COMM,
             "\tchan: 0x%" PRIxPTR ", size: %d, remote: %s",
             chan,
             chan->buffer.size(),
diff --git a/src/rt/rust_task.cpp b/src/rt/rust_task.cpp
index df7dd2a3531..4f7bbda61c6 100644
--- a/src/rt/rust_task.cpp
+++ b/src/rt/rust_task.cpp
@@ -24,10 +24,10 @@ new_stk(rust_dom *dom, size_t minsz)
         minsz = min_stk_bytes;
     size_t sz = sizeof(stk_seg) + minsz;
     stk_seg *stk = (stk_seg *)dom->malloc(sz);
-    dom->logptr("new stk", (uintptr_t)stk);
+    LOGPTR(dom, "new stk", (uintptr_t)stk);
     memset(stk, 0, sizeof(stk_seg));
     stk->limit = (uintptr_t) &stk->data[minsz];
-    dom->logptr("stk limit", stk->limit);
+    LOGPTR(dom, "stk limit", stk->limit);
     stk->valgrind_id =
         VALGRIND_STACK_REGISTER(&stk->data[0],
                                 &stk->data[minsz]);
@@ -38,7 +38,7 @@ static void
 del_stk(rust_dom *dom, stk_seg *stk)
 {
     VALGRIND_STACK_DEREGISTER(stk->valgrind_id);
-    dom->logptr("freeing stk segment", (uintptr_t)stk);
+    LOGPTR(dom, "freeing stk segment", (uintptr_t)stk);
     dom->free(stk);
 }
 
@@ -93,7 +93,7 @@ rust_task::rust_task(rust_dom *dom, rust_task_list *state,
     alarm(this),
     handle(NULL)
 {
-    dom->logptr("new task", (uintptr_t)this);
+    LOGPTR(dom, "new task", (uintptr_t)this);
 
     if (spawner == NULL) {
         ref_count = 0;
@@ -102,24 +102,24 @@ rust_task::rust_task(rust_dom *dom, rust_task_list *state,
 
 rust_task::~rust_task()
 {
-    dom->log(rust_log::MEM|rust_log::TASK,
+    DLOG(dom, rust_log::MEM|rust_log::TASK,
              "~rust_task %s @0x%" PRIxPTR ", refcnt=%d",
              name, (uintptr_t)this, ref_count);
 
     /*
       for (uintptr_t fp = get_fp(); fp; fp = get_previous_fp(fp)) {
       frame_glue_fns *glue_fns = get_frame_glue_fns(fp);
-      dom->log(rust_log::MEM|rust_log::TASK,
+      DLOG(dom, rust_log::MEM|rust_log::TASK,
       "~rust_task, frame fp=0x%" PRIxPTR ", glue_fns=0x%" PRIxPTR,
       fp, glue_fns);
       if (glue_fns) {
-      dom->log(rust_log::MEM|rust_log::TASK,
+      DLOG(dom, rust_log::MEM|rust_log::TASK,
                "~rust_task, mark_glue=0x%" PRIxPTR,
                glue_fns->mark_glue);
-      dom->log(rust_log::MEM|rust_log::TASK,
+      DLOG(dom, rust_log::MEM|rust_log::TASK,
                "~rust_task, drop_glue=0x%" PRIxPTR,
                glue_fns->drop_glue);
-      dom->log(rust_log::MEM|rust_log::TASK,
+      DLOG(dom, rust_log::MEM|rust_log::TASK,
                "~rust_task, reloc_glue=0x%" PRIxPTR,
                glue_fns->reloc_glue);
       }
@@ -143,8 +143,8 @@ rust_task::start(uintptr_t exit_task_glue,
                  uintptr_t args,
                  size_t callsz)
 {
-    dom->logptr("exit-task glue", exit_task_glue);
-    dom->logptr("from spawnee", spawnee_fn);
+    LOGPTR(dom, "exit-task glue", exit_task_glue);
+    LOGPTR(dom, "from spawnee", spawnee_fn);
 
     // Set sp to last uintptr_t-sized cell of segment
     rust_sp -= sizeof(uintptr_t);
@@ -266,7 +266,7 @@ rust_task::grow(size_t n_frame_bytes)
     uintptr_t old_bottom = (uintptr_t) &old_stk->data[0];
     uintptr_t rust_sp_disp = old_top - this->rust_sp;
     size_t ssz = old_top - old_bottom;
-    dom->log(rust_log::MEM|rust_log::TASK|rust_log::UPCALL,
+    DLOG(dom, rust_log::MEM|rust_log::TASK|rust_log::UPCALL,
              "upcall_grow_task(%" PRIdPTR
              "), old size %" PRIdPTR
              " bytes (old lim: 0x%" PRIxPTR ")",
@@ -276,13 +276,13 @@ rust_task::grow(size_t n_frame_bytes)
         ssz = n_frame_bytes;
     ssz = next_power_of_two(ssz);
 
-    dom->log(rust_log::MEM|rust_log::TASK, "upcall_grow_task growing stk 0x%"
+    DLOG(dom, rust_log::MEM|rust_log::TASK, "upcall_grow_task growing stk 0x%"
              PRIxPTR " to %d bytes", old_stk, ssz);
 
     stk_seg *nstk = new_stk(dom, ssz);
     uintptr_t new_top = (uintptr_t) &nstk->data[ssz];
     size_t n_copy = old_top - old_bottom;
-    dom->log(rust_log::MEM|rust_log::TASK,
+    DLOG(dom, rust_log::MEM|rust_log::TASK,
              "copying %d bytes of stack from [0x%" PRIxPTR ", 0x%" PRIxPTR "]"
              " to [0x%" PRIxPTR ", 0x%" PRIxPTR "]",
              n_copy,
@@ -296,7 +296,7 @@ rust_task::grow(size_t n_frame_bytes)
     this->stk = nstk;
     this->rust_sp = new_top - rust_sp_disp;
 
-    dom->log(rust_log::MEM|rust_log::TASK, "processing relocations");
+    DLOG(dom, rust_log::MEM|rust_log::TASK, "processing relocations");
 
     // FIXME (issue #32): this is the most ridiculously crude
     // relocation scheme ever. Try actually, you know, writing out
@@ -305,16 +305,16 @@ rust_task::grow(size_t n_frame_bytes)
     for (uintptr_t* p = (uintptr_t*)(new_top - n_copy);
          p < (uintptr_t*)new_top; ++p) {
         if (old_bottom <= *p && *p < old_top) {
-            //dom->log(rust_log::MEM, "relocating pointer 0x%" PRIxPTR
+            //DLOG(dom, rust_log::MEM, "relocating pointer 0x%" PRIxPTR
             //        " by %d bytes", *p, (new_top - old_top));
             n_relocs++;
             *p += (new_top - old_top);
         }
     }
-    dom->log(rust_log::MEM|rust_log::TASK,
+    DLOG(dom, rust_log::MEM|rust_log::TASK,
              "processed %d relocations", n_relocs);
     del_stk(dom, old_stk);
-    dom->logptr("grown stk limit", new_top);
+    LOGPTR(dom, "grown stk limit", new_top);
 #endif
 }
 
@@ -342,7 +342,7 @@ rust_task::run_after_return(size_t nargs, uintptr_t glue)
     sp = align_down(sp - nargs * sizeof(uintptr_t));
 
     uintptr_t *retpc = ((uintptr_t *) sp) - 1;
-    dom->log(rust_log::TASK|rust_log::MEM,
+    DLOG(dom, rust_log::TASK|rust_log::MEM,
              "run_after_return: overwriting retpc=0x%" PRIxPTR
              " @ runtime_sp=0x%" PRIxPTR
              " with glue=0x%" PRIxPTR,
@@ -363,7 +363,7 @@ rust_task::run_on_resume(uintptr_t glue)
     // Inject glue as resume address in the suspended frame.
     uintptr_t* rsp = (uintptr_t*) rust_sp;
     rsp += n_callee_saves;
-    dom->log(rust_log::TASK|rust_log::MEM,
+    DLOG(dom, rust_log::TASK|rust_log::MEM,
              "run_on_resume: overwriting retpc=0x%" PRIxPTR
              " @ rust_sp=0x%" PRIxPTR
              " with glue=0x%" PRIxPTR,
@@ -415,7 +415,7 @@ rust_task::kill() {
 void
 rust_task::fail(size_t nargs) {
     // See note in ::kill() regarding who should call this.
-    dom->log(rust_log::TASK, "task %s @0x%" PRIxPTR " failing", name, this);
+    DLOG(dom, rust_log::TASK, "task %s @0x%" PRIxPTR " failing", name, this);
     backtrace();
     // Unblock the task so it can unwind.
     unblock();
@@ -423,7 +423,7 @@ rust_task::fail(size_t nargs) {
         dom->fail();
     run_after_return(nargs, dom->root_crate->get_unwind_glue());
     if (supervisor) {
-        dom->log(rust_log::TASK,
+        DLOG(dom, rust_log::TASK,
                  "task %s @0x%" PRIxPTR
                  " propagating failure to supervisor %s @0x%" PRIxPTR,
                  name, this, supervisor->name, supervisor);
@@ -434,7 +434,7 @@ rust_task::fail(size_t nargs) {
 void
 rust_task::gc(size_t nargs)
 {
-    dom->log(rust_log::TASK|rust_log::MEM,
+    DLOG(dom, rust_log::TASK|rust_log::MEM,
              "task %s @0x%" PRIxPTR " garbage collecting", name, this);
     run_after_return(nargs, dom->root_crate->get_gc_glue());
 }
@@ -442,7 +442,7 @@ rust_task::gc(size_t nargs)
 void
 rust_task::unsupervise()
 {
-    dom->log(rust_log::TASK,
+    DLOG(dom, rust_log::TASK,
              "task %s @0x%" PRIxPTR
              " disconnecting from supervisor %s @0x%" PRIxPTR,
              name, this, supervisor->name, supervisor);
@@ -551,7 +551,7 @@ rust_task::malloc(size_t sz, type_desc *td)
         return mem;
     if (td) {
         gc_alloc *gcm = (gc_alloc*) mem;
-        dom->log(rust_log::TASK|rust_log::MEM|rust_log::GC,
+        DLOG(dom, rust_log::TASK|rust_log::MEM|rust_log::GC,
                  "task %s @0x%" PRIxPTR
                  " allocated %d GC bytes = 0x%" PRIxPTR,
                  name, (uintptr_t)this, sz, gcm);
@@ -575,7 +575,7 @@ rust_task::realloc(void *data, size_t sz, bool is_gc)
         unlink_gc(gcm);
         sz += sizeof(gc_alloc);
         gcm = (gc_alloc*) dom->realloc((void*)gcm, sz);
-        dom->log(rust_log::TASK|rust_log::MEM|rust_log::GC,
+        DLOG(dom, rust_log::TASK|rust_log::MEM|rust_log::GC,
                  "task %s @0x%" PRIxPTR
                  " reallocated %d GC bytes = 0x%" PRIxPTR,
                  name, (uintptr_t)this, sz, gcm);
@@ -598,7 +598,7 @@ rust_task::free(void *p, bool is_gc)
     if (is_gc) {
         gc_alloc *gcm = (gc_alloc*)(((char *)p) - sizeof(gc_alloc));
         unlink_gc(gcm);
-        dom->log(rust_log::TASK|rust_log::MEM|rust_log::GC,
+        DLOG(dom, rust_log::TASK|rust_log::MEM|rust_log::GC,
                  "task %s @0x%" PRIxPTR " freeing GC memory = 0x%" PRIxPTR,
                  name, (uintptr_t)this, gcm);
         dom->free(gcm);
@@ -610,7 +610,7 @@ rust_task::free(void *p, bool is_gc)
 void
 rust_task::transition(rust_task_list *src, rust_task_list *dst) {
     I(dom, state == src);
-    dom->log(rust_log::TASK,
+    DLOG(dom, rust_log::TASK,
              "task %s " PTR " state change '%s' -> '%s'",
              name, (uintptr_t)this, src->name, dst->name);
     src->remove(this);
@@ -658,14 +658,14 @@ rust_crate_cache *
 rust_task::get_crate_cache(rust_crate const *curr_crate)
 {
     if (cache && cache->crate != curr_crate) {
-        dom->log(rust_log::TASK, "switching task crate-cache to crate 0x%"
+        DLOG(dom, rust_log::TASK, "switching task crate-cache to crate 0x%"
                  PRIxPTR, curr_crate);
         cache->deref();
         cache = NULL;
     }
 
     if (!cache) {
-        dom->log(rust_log::TASK, "fetching cache for current crate");
+        DLOG(dom, rust_log::TASK, "fetching cache for current crate");
         cache = dom->get_cache(curr_crate);
     }
     return cache;
diff --git a/src/rt/rust_task_list.cpp b/src/rt/rust_task_list.cpp
index 635ee13667d..dd6aaeb59af 100644
--- a/src/rt/rust_task_list.cpp
+++ b/src/rt/rust_task_list.cpp
@@ -7,10 +7,10 @@ rust_task_list::rust_task_list (rust_dom *dom, const char* name) :
 
 void
 rust_task_list::delete_all() {
-    dom->log(rust_log::TASK, "deleting all %s tasks", name);
+    DLOG(dom, rust_log::TASK, "deleting all %s tasks", name);
     while (is_empty() == false) {
         rust_task *task = pop_value();
-        dom->log(rust_log::TASK, "deleting task " PTR, task);
+        DLOG(dom, rust_log::TASK, "deleting task " PTR, task);
         delete task;
     }
 }
diff --git a/src/rt/rust_timer.cpp b/src/rt/rust_timer.cpp
index e4fbd6a94f8..40044e03678 100644
--- a/src/rt/rust_timer.cpp
+++ b/src/rt/rust_timer.cpp
@@ -30,7 +30,7 @@ timer_loop(void *ptr) {
     // We were handed the rust_timer that owns us.
     rust_timer *timer = (rust_timer *)ptr;
     rust_dom *dom = timer->dom;
-    dom->log(rust_log::TIMER, "in timer 0x%" PRIxPTR, (uintptr_t)timer);
+    DLOG(dom, rust_log::TIMER, "in timer 0x%" PRIxPTR, (uintptr_t)timer);
     size_t ms = TIME_SLICE_IN_MS;
 
     while (!timer->exit_flag) {
@@ -39,7 +39,7 @@ timer_loop(void *ptr) {
 #else
         usleep(ms * 1000);
 #endif
-        dom->log(rust_log::TIMER, "timer 0x%" PRIxPTR
+        DLOG(dom, rust_log::TIMER, "timer 0x%" PRIxPTR
         " interrupting domain 0x%" PRIxPTR, (uintptr_t) timer,
                  (uintptr_t) dom);
         dom->interrupt_flag = 1;
@@ -54,7 +54,7 @@ timer_loop(void *ptr) {
 
 rust_timer::rust_timer(rust_dom *dom) :
     dom(dom), exit_flag(0) {
-    dom->log(rust_log::TIMER, "creating timer for domain 0x%" PRIxPTR, dom);
+    DLOG(dom, rust_log::TIMER, "creating timer for domain 0x%" PRIxPTR, dom);
 #if defined(__WIN32__)
     thread = CreateThread(NULL, 0, timer_loop, this, 0, NULL);
     dom->win32_require("CreateThread", thread != NULL);
diff --git a/src/rt/rust_upcall.cpp b/src/rt/rust_upcall.cpp
index f5fa00f98bb..6318b6e249d 100644
--- a/src/rt/rust_upcall.cpp
+++ b/src/rt/rust_upcall.cpp
@@ -4,23 +4,19 @@
 
 #ifdef __GNUC__
 #define LOG_UPCALL_ENTRY(task)                              \
-    (task)->dom->get_log().reset_indent(0);                 \
-    (task)->log(rust_log::UPCALL,                           \
-                "> UPCALL %s - task: %s 0x%" PRIxPTR        \
-                " retpc: x%" PRIxPTR                        \
-                " ref_count: %d",                           \
-                __FUNCTION__,                               \
-                (task)->name, (task),                       \
-                __builtin_return_address(0),                \
-                (task->ref_count));                         \
-    (task)->dom->get_log().indent();
+    LOG_I(task, rust_log::UPCALL,                           \
+          "> UPCALL %s - task: %s 0x%" PRIxPTR              \
+          " retpc: x%" PRIxPTR                              \
+          " ref_count: %d",                                 \
+          __FUNCTION__,                                     \
+          (task)->name, (task),                             \
+          __builtin_return_address(0),                      \
+          (task->ref_count));
 #else
 #define LOG_UPCALL_ENTRY(task)                              \
-    (task)->dom->get_log().reset_indent(0);                 \
-    (task)->log(rust_log::UPCALL,                           \
-                "> UPCALL task: %s @x%" PRIxPTR,            \
-                (task)->name, (task));                      \
-    (task)->dom->get_log().indent();
+    LOG_I(task, rust_log::UPCALL,                           \
+          "> UPCALL task: %s @x%" PRIxPTR,                  \
+          (task)->name, (task));
 #endif
 
 extern "C" CDECL char const *
@@ -35,21 +31,21 @@ upcall_grow_task(rust_task *task, size_t n_frame_bytes) {
 extern "C" CDECL
 void upcall_log_int(rust_task *task, int32_t i) {
     LOG_UPCALL_ENTRY(task);
-    task->log(rust_log::UPCALL | rust_log::ULOG,
-              "rust: %" PRId32 " (0x%" PRIx32 ")", i, i);
+    LOG(task, rust_log::UPCALL | rust_log::ULOG,
+        "rust: %" PRId32 " (0x%" PRIx32 ")", i, i);
 }
 
 extern "C" CDECL
 void upcall_log_float(rust_task *task, float f) {
     LOG_UPCALL_ENTRY(task);
-    task->log(rust_log::UPCALL | rust_log::ULOG,
-              "rust: %12.12f", f);
+    LOG(task, rust_log::UPCALL | rust_log::ULOG,
+        "rust: %12.12f", f);
 }
 
 extern "C" CDECL
 void upcall_log_double(rust_task *task, double *f) {
     LOG_UPCALL_ENTRY(task);
-    task->log(rust_log::UPCALL | rust_log::ULOG,
+    LOG(task, rust_log::UPCALL | rust_log::ULOG,
               "rust: %12.12f", *f);
 }
 
@@ -57,27 +53,27 @@ extern "C" CDECL void
 upcall_log_str(rust_task *task, rust_str *str) {
     LOG_UPCALL_ENTRY(task);
     const char *c = str_buf(task, str);
-    task->log(rust_log::UPCALL | rust_log::ULOG, "rust: %s", c);
+    LOG(task, rust_log::UPCALL | rust_log::ULOG, "rust: %s", c);
 }
 
 extern "C" CDECL void
 upcall_trace_word(rust_task *task, uintptr_t i) {
     LOG_UPCALL_ENTRY(task);
-    task->log(rust_log::UPCALL | rust_log::TRACE, "trace: 0x%" PRIxPTR "", i,
+    LOG(task, rust_log::UPCALL | rust_log::TRACE, "trace: 0x%" PRIxPTR "", i,
               i, (char) i);
 }
 
 extern "C" CDECL void
 upcall_trace_str(rust_task *task, char const *c) {
     LOG_UPCALL_ENTRY(task);
-    task->log(rust_log::UPCALL | rust_log::TRACE, "trace: %s", c);
+    LOG(task, rust_log::UPCALL | rust_log::TRACE, "trace: %s", c);
 }
 
 extern "C" CDECL rust_port*
 upcall_new_port(rust_task *task, size_t unit_sz) {
     LOG_UPCALL_ENTRY(task);
     rust_dom *dom = task->dom;
-    task->log(rust_log::UPCALL | rust_log::MEM | rust_log::COMM,
+    LOG(task, rust_log::UPCALL | rust_log::MEM | rust_log::COMM,
               "upcall_new_port(task=0x%" PRIxPTR " (%s), unit_sz=%d)",
               (uintptr_t) task, task->name, unit_sz);
     return new (dom) rust_port(task, unit_sz);
@@ -86,7 +82,7 @@ upcall_new_port(rust_task *task, size_t unit_sz) {
 extern "C" CDECL void
 upcall_del_port(rust_task *task, rust_port *port) {
     LOG_UPCALL_ENTRY(task);
-    task->log(rust_log::UPCALL | rust_log::MEM | rust_log::COMM,
+    LOG(task, rust_log::UPCALL | rust_log::MEM | rust_log::COMM,
               "upcall del_port(0x%" PRIxPTR ")", (uintptr_t) port);
     I(task->dom, !port->ref_count);
     delete port;
@@ -99,7 +95,7 @@ extern "C" CDECL rust_chan*
 upcall_new_chan(rust_task *task, rust_port *port) {
     LOG_UPCALL_ENTRY(task);
     rust_dom *dom = task->dom;
-    task->log(rust_log::UPCALL | rust_log::MEM | rust_log::COMM,
+    LOG(task, rust_log::UPCALL | rust_log::MEM | rust_log::COMM,
               "upcall_new_chan("
               "task=0x%" PRIxPTR " (%s), port=0x%" PRIxPTR ")",
               (uintptr_t) task, task->name, port);
@@ -128,7 +124,7 @@ extern "C" CDECL
 void upcall_del_chan(rust_task *task, rust_chan *chan) {
     LOG_UPCALL_ENTRY(task);
 
-    task->log(rust_log::UPCALL | rust_log::MEM | rust_log::COMM,
+    LOG(task, rust_log::UPCALL | rust_log::MEM | rust_log::COMM,
               "upcall del_chan(0x%" PRIxPTR ")", (uintptr_t) chan);
 
     A(task->dom, chan->ref_count == 0,
@@ -179,7 +175,7 @@ upcall_clone_chan(rust_task *task, maybe_proxy<rust_task> *target,
         rust_handle<rust_port> *handle =
             task->dom->kernel->get_port_handle(port->as_referent());
         maybe_proxy<rust_port> *proxy = new rust_proxy<rust_port> (handle);
-        task->log(rust_log::MEM, "new proxy: " PTR, proxy);
+        LOG(task, rust_log::MEM, "new proxy: " PTR, proxy);
         port = proxy;
         target_task = target->as_proxy()->handle()->referent();
     }
@@ -189,16 +185,16 @@ upcall_clone_chan(rust_task *task, maybe_proxy<rust_task> *target,
 extern "C" CDECL void
 upcall_yield(rust_task *task) {
     LOG_UPCALL_ENTRY(task);
-    task->log(rust_log::UPCALL | rust_log::COMM, "upcall yield()");
+    LOG(task, rust_log::UPCALL | rust_log::COMM, "upcall yield()");
     task->yield(1);
 }
 
 extern "C" CDECL void
 upcall_sleep(rust_task *task, size_t time_in_us) {
     LOG_UPCALL_ENTRY(task);
-    task->log(rust_log::UPCALL | rust_log::TASK, "elapsed %d",
+    LOG(task, rust_log::UPCALL | rust_log::TASK, "elapsed %d",
               task->yield_timer.get_elapsed_time());
-    task->log(rust_log::UPCALL | rust_log::TASK, "sleep %d us", time_in_us);
+    LOG(task, rust_log::UPCALL | rust_log::TASK, "sleep %d us", time_in_us);
     task->yield(2, time_in_us);
 }
 
@@ -232,13 +228,13 @@ extern "C" CDECL void
 upcall_send(rust_task *task, rust_chan *chan, void *sptr) {
     LOG_UPCALL_ENTRY(task);
     chan->send(sptr);
-    task->log(rust_log::COMM, "=== sent data ===>");
+    LOG(task, rust_log::COMM, "=== sent data ===>");
 }
 
 extern "C" CDECL void
 upcall_recv(rust_task *task, uintptr_t *dptr, rust_port *port) {
     LOG_UPCALL_ENTRY(task);
-    task->log(rust_log::UPCALL | rust_log::COMM,
+    LOG(task, rust_log::UPCALL | rust_log::COMM,
               "port: 0x%" PRIxPTR ", dptr: 0x%" PRIxPTR
               ", size: 0x%" PRIxPTR ", chan_no: %d",
               (uintptr_t) port, (uintptr_t) dptr, port->unit_sz,
@@ -252,7 +248,7 @@ upcall_recv(rust_task *task, uintptr_t *dptr, rust_port *port) {
     // on the port. Remember the rendezvous location so that any sender
     // task can write to it before waking up this task.
 
-    task->log(rust_log::COMM, "<=== waiting for rendezvous data ===");
+    LOG(task, rust_log::COMM, "<=== waiting for rendezvous data ===");
     task->rendezvous_ptr = dptr;
     task->block(port, "waiting for rendezvous data");
     task->yield(3);
@@ -264,7 +260,7 @@ upcall_fail(rust_task *task,
             char const *file,
             size_t line) {
     LOG_UPCALL_ENTRY(task);
-    task->log(rust_log::UPCALL | rust_log::ERR,
+    LOG(task, rust_log::UPCALL | rust_log::ERR,
               "upcall fail '%s', %s:%" PRIdPTR, expr, file, line);
     task->fail(4);
     if (getenv("RUST_TRAP_FAILURE")) {
@@ -296,7 +292,7 @@ upcall_kill(rust_task *task, maybe_proxy<rust_task> *target) {
 extern "C" CDECL void
 upcall_exit(rust_task *task) {
     LOG_UPCALL_ENTRY(task);
-    task->log(rust_log::UPCALL | rust_log::TASK,
+    LOG(task, rust_log::UPCALL | rust_log::TASK,
               "task ref_count: %d", task->ref_count);
     A(task->dom, task->ref_count >= 0,
       "Task ref_count should not be negative on exit!");
@@ -309,12 +305,12 @@ extern "C" CDECL uintptr_t
 upcall_malloc(rust_task *task, size_t nbytes, type_desc *td) {
     LOG_UPCALL_ENTRY(task);
 
-    task->dom->log(rust_log::UPCALL|rust_log::MEM,
+    LOG(task, rust_log::UPCALL|rust_log::MEM,
                    "upcall malloc(%" PRIdPTR ", 0x%" PRIxPTR ")"
                    " with gc-chain head = 0x%" PRIxPTR,
                    nbytes, td, task->gc_alloc_chain);
     void *p = task->malloc(nbytes, td);
-    task->dom->log(rust_log::UPCALL|rust_log::MEM,
+    LOG(task, rust_log::UPCALL|rust_log::MEM,
                    "upcall malloc(%" PRIdPTR ", 0x%" PRIxPTR
                    ") = 0x%" PRIxPTR
                    " with gc-chain head = 0x%" PRIxPTR,
@@ -329,7 +325,7 @@ extern "C" CDECL void
 upcall_free(rust_task *task, void* ptr, uintptr_t is_gc) {
     LOG_UPCALL_ENTRY(task);
     rust_dom *dom = task->dom;
-    dom->log(rust_log::UPCALL|rust_log::MEM,
+    DLOG(dom, rust_log::UPCALL|rust_log::MEM,
              "upcall free(0x%" PRIxPTR ", is_gc=%" PRIdPTR ")",
              (uintptr_t)ptr, is_gc);
     task->free(ptr, (bool) is_gc);
@@ -343,7 +339,7 @@ upcall_mark(rust_task *task, void* ptr) {
     if (ptr) {
         gc_alloc *gcm = (gc_alloc*) (((char*)ptr) - sizeof(gc_alloc));
         uintptr_t marked = (uintptr_t) gcm->mark();
-        dom->log(rust_log::UPCALL|rust_log::MEM|rust_log::GC,
+        DLOG(dom, rust_log::UPCALL|rust_log::MEM|rust_log::GC,
                  "upcall mark(0x%" PRIxPTR ") = %" PRIdPTR,
                  (uintptr_t)gcm, marked);
         return marked;
@@ -362,7 +358,7 @@ upcall_new_str(rust_task *task, char const *s, size_t fill) {
         return NULL;
     }
     rust_str *st = new (mem) rust_str(dom, alloc, fill, (uint8_t const *) s);
-    task->log(rust_log::UPCALL | rust_log::MEM,
+    LOG(task, rust_log::UPCALL | rust_log::MEM,
               "upcall new_str('%s', %" PRIdPTR ") = 0x%" PRIxPTR,
               s, fill, st);
     return st;
@@ -372,7 +368,7 @@ extern "C" CDECL rust_vec *
 upcall_new_vec(rust_task *task, size_t fill, type_desc *td) {
     LOG_UPCALL_ENTRY(task);
     rust_dom *dom = task->dom;
-    dom->log(rust_log::UPCALL|rust_log::MEM,
+    DLOG(dom, rust_log::UPCALL|rust_log::MEM,
              "upcall new_vec(%" PRIdPTR ")",
              fill);
     size_t alloc = next_power_of_two(sizeof(rust_vec) + fill);
@@ -382,7 +378,7 @@ upcall_new_vec(rust_task *task, size_t fill, type_desc *td) {
         return NULL;
     }
     rust_vec *v = new (mem) rust_vec(dom, alloc, 0, NULL);
-    task->log(rust_log::UPCALL | rust_log::MEM,
+    LOG(task, rust_log::UPCALL | rust_log::MEM,
               "upcall new_vec(%" PRIdPTR ") = 0x%" PRIxPTR, fill, v);
     return v;
 }
@@ -396,7 +392,7 @@ upcall_vec_grow(rust_task *task,
 {
     LOG_UPCALL_ENTRY(task);
     rust_dom *dom = task->dom;
-    task->log(rust_log::UPCALL | rust_log::MEM,
+    LOG(task, rust_log::UPCALL | rust_log::MEM,
               "upcall vec_grow(0x%" PRIxPTR ", %" PRIdPTR
               "), alloc=%" PRIdPTR ", fill=%" PRIdPTR
               ", need_copy=0x%" PRIxPTR,
@@ -409,12 +405,12 @@ upcall_vec_grow(rust_task *task,
 
         // Fastest path: already large enough.
         if (v->alloc >= alloc) {
-            task->log(rust_log::UPCALL | rust_log::MEM, "no-growth path");
+            LOG(task, rust_log::UPCALL | rust_log::MEM, "no-growth path");
             return v;
         }
 
         // Second-fastest path: can at least realloc.
-        task->log(rust_log::UPCALL | rust_log::MEM, "realloc path");
+        LOG(task, rust_log::UPCALL | rust_log::MEM, "realloc path");
         v = (rust_vec*) task->realloc(v, alloc, td->is_stateful);
         if (!v) {
             task->fail(4);
@@ -436,7 +432,7 @@ upcall_vec_grow(rust_task *task,
          * need_copy outparam flag to indicate to our caller (vec-copy glue)
          * that we need the copies performed for us.
          */
-        task->log(rust_log::UPCALL | rust_log::MEM, "new vec path");
+        LOG(task, rust_log::UPCALL | rust_log::MEM, "new vec path");
         void *mem = task->malloc(alloc, td);
         if (!mem) {
             task->fail(4);
@@ -476,23 +472,23 @@ upcall_require_rust_sym(rust_task *task,
     LOG_UPCALL_ENTRY(task);
     rust_dom *dom = task->dom;
 
-    task->log(rust_log::UPCALL | rust_log::CACHE,
+    LOG(task, rust_log::UPCALL | rust_log::CACHE,
               "upcall require rust sym: lib #%" PRIdPTR
               " = %s, c_sym #%" PRIdPTR
               ", rust_sym #%" PRIdPTR
               ", curr_crate = 0x%" PRIxPTR, lib_num, library, c_sym_num,
               rust_sym_num, curr_crate);
     for (char const **c = crate_rel(curr_crate, path); *c; ++c) {
-        task->log(rust_log::UPCALL, " + %s", crate_rel(curr_crate, *c));
+        LOG(task, rust_log::UPCALL, " + %s", crate_rel(curr_crate, *c));
     }
 
-    task->log(rust_log::UPCALL | rust_log::CACHE,
+    LOG(task, rust_log::UPCALL | rust_log::CACHE,
               "require C symbol 'rust_crate' from lib #%" PRIdPTR, lib_num);
     rust_crate_cache::c_sym *c =
             fetch_c_sym(task, curr_crate, lib_num, c_sym_num, library,
                         "rust_crate");
 
-    task->log(rust_log::UPCALL | rust_log::CACHE,
+    LOG(task, rust_log::UPCALL | rust_log::CACHE,
               "require rust symbol inside crate");
     rust_crate_cache::rust_sym *s = task->cache->get_rust_sym(rust_sym_num,
                                                               dom,
@@ -501,10 +497,10 @@ upcall_require_rust_sym(rust_task *task,
 
     uintptr_t addr = s->get_val();
     if (addr) {
-        task->log(rust_log::UPCALL | rust_log::CACHE,
+        LOG(task, rust_log::UPCALL | rust_log::CACHE,
                   "found-or-cached addr: 0x%" PRIxPTR, addr);
     } else {
-        task->log(rust_log::UPCALL | rust_log::CACHE | rust_log::ERR,
+        LOG(task, rust_log::UPCALL | rust_log::CACHE | rust_log::ERR,
                   "failed to resolve symbol");
         task->fail(7);
     }
@@ -520,7 +516,7 @@ upcall_require_c_sym(rust_task *task,
                      char const *symbol) {
     LOG_UPCALL_ENTRY(task);
 
-    task->log(rust_log::UPCALL | rust_log::CACHE,
+    LOG(task, rust_log::UPCALL | rust_log::CACHE,
               "upcall require c sym: lib #%" PRIdPTR
               " = %s, c_sym #%" PRIdPTR
               " = %s"
@@ -532,10 +528,10 @@ upcall_require_c_sym(rust_task *task,
 
     uintptr_t addr = c->get_val();
     if (addr) {
-        task->log(rust_log::UPCALL | rust_log::CACHE,
+        LOG(task, rust_log::UPCALL | rust_log::CACHE,
                   "found-or-cached addr: 0x%" PRIxPTR, addr);
     } else {
-        task->log(rust_log::UPCALL | rust_log::CACHE | rust_log::ERR,
+        LOG(task, rust_log::UPCALL | rust_log::CACHE | rust_log::ERR,
                   "failed to resolve symbol %s in %s", symbol, library);
         task->fail(6);
     }
@@ -550,13 +546,13 @@ upcall_get_type_desc(rust_task *task,
                      size_t n_descs,
                      type_desc const **descs) {
     LOG_UPCALL_ENTRY(task);
-    task->log(rust_log::UPCALL | rust_log::CACHE,
+    LOG(task, rust_log::UPCALL | rust_log::CACHE,
               "upcall get_type_desc with size=%" PRIdPTR
               ", align=%" PRIdPTR ", %" PRIdPTR " descs", size, align,
               n_descs);
     rust_crate_cache *cache = task->get_crate_cache(curr_crate);
     type_desc *td = cache->get_type_desc(size, align, n_descs, descs);
-    task->log(rust_log::UPCALL | rust_log::CACHE,
+    LOG(task, rust_log::UPCALL | rust_log::CACHE,
               "returning tydesc 0x%" PRIxPTR, td);
     return td;
 }
@@ -579,7 +575,7 @@ upcall_start_task(rust_task *spawner,
     LOG_UPCALL_ENTRY(spawner);
 
     rust_dom *dom = spawner->dom;
-    dom->log(rust_log::UPCALL | rust_log::MEM | rust_log::TASK,
+    DLOG(dom, rust_log::UPCALL | rust_log::MEM | rust_log::TASK,
              "upcall start_task(task %s @0x%" PRIxPTR
              " exit_task_glue 0x%" PRIxPTR
              ", spawnee 0x%" PRIxPTR
@@ -602,7 +598,7 @@ upcall_new_thread(rust_task *task, const char *name) {
         kernel->create_domain(parent_dom->root_crate, name);
     rust_handle<rust_task> *child_task_handle =
         kernel->get_task_handle(child_dom_handle->referent()->root_task);
-    task->log(rust_log::UPCALL | rust_log::MEM,
+    LOG(task, rust_log::UPCALL | rust_log::MEM,
               "child name: %s, child_dom_handle: " PTR
               ", child_task_handle: " PTR,
               name, child_dom_handle, child_task_handle);
@@ -645,7 +641,7 @@ upcall_start_thread(rust_task *task,
     LOG_UPCALL_ENTRY(task);
     rust_dom *parenet_dom = task->dom;
     rust_handle<rust_task> *child_task_handle = child_task_proxy->handle();
-    task->log(rust_log::UPCALL | rust_log::MEM | rust_log::TASK,
+    LOG(task, rust_log::UPCALL | rust_log::MEM | rust_log::TASK,
               "exit_task_glue: " PTR ", spawnee_fn " PTR
               ", callsz %" PRIdPTR ")",
               exit_task_glue, spawnee_fn, callsz);
diff --git a/src/rt/rust_util.h b/src/rt/rust_util.h
index 14a865bd3a4..b36b776372a 100644
--- a/src/rt/rust_util.h
+++ b/src/rt/rust_util.h
@@ -24,7 +24,7 @@ ptr_vec<T>::ptr_vec(rust_dom *dom) :
     data(new (dom) T*[alloc])
 {
     I(dom, data);
-    dom->log(rust_log::MEM,
+    DLOG(dom, rust_log::MEM,
              "new ptr_vec(data=0x%" PRIxPTR ") -> 0x%" PRIxPTR,
              (uintptr_t)data, (uintptr_t)this);
 }
@@ -33,7 +33,7 @@ template <typename T>
 ptr_vec<T>::~ptr_vec()
 {
     I(dom, data);
-    dom->log(rust_log::MEM,
+    DLOG(dom, rust_log::MEM,
              "~ptr_vec 0x%" PRIxPTR ", data=0x%" PRIxPTR,
              (uintptr_t)this, (uintptr_t)data);
     I(dom, fill == 0);