auto merge of #8175 : brson/rust/nodbg, r=graydon

This stuff is ancient, unused, and tied to oldsched

3 files changed, 0 insertions, 112 deletions

diff --git a/src/rt/rust_builtin.cpp b/src/rt/rust_builtin.cpp
index e6517b3639a..d77a9f58a38 100644
--- a/src/rt/rust_builtin.cpp
+++ b/src/rt/rust_builtin.cpp
@@ -150,93 +150,6 @@ debug_static_mut_check_four() {
     assert(debug_static_mut == 4);
 }
 
-/* Debug builtins for std::dbg. */
-
-static void
-debug_tydesc_helper(type_desc *t)
-{
-    rust_task *task = rust_get_current_task();
-    LOG(task, stdlib, "  size %" PRIdPTR ", align %" PRIdPTR,
-        t->size, t->align);
-}
-
-extern "C" CDECL void
-debug_tydesc(type_desc *t) {
-    rust_task *task = rust_get_current_task();
-    LOG(task, stdlib, "debug_tydesc");
-    debug_tydesc_helper(t);
-}
-
-extern "C" CDECL void
-debug_opaque(type_desc *t, uint8_t *front) {
-    rust_task *task = rust_get_current_task();
-    LOG(task, stdlib, "debug_opaque");
-    debug_tydesc_helper(t);
-    // Account for alignment. `front` may not indeed be the
-    // front byte of the passed-in argument
-    if (((uintptr_t)front % t->align) != 0) {
-        front = (uint8_t *)align_to((uintptr_t)front, (size_t)t->align);
-    }
-    for (uintptr_t i = 0; i < t->size; ++front, ++i) {
-        LOG(task, stdlib, "  byte %" PRIdPTR ": 0x%" PRIx8, i, *front);
-    }
-}
-
-extern "C" CDECL void
-debug_box(type_desc *t, rust_opaque_box *box) {
-    rust_task *task = rust_get_current_task();
-    LOG(task, stdlib, "debug_box(0x%" PRIxPTR ")", box);
-    debug_tydesc_helper(t);
-    LOG(task, stdlib, "  refcount %" PRIdPTR,
-        box->ref_count - 1);  // -1 because we ref'ed for this call
-    uint8_t *data = (uint8_t *)box_body(box);
-    for (uintptr_t i = 0; i < t->size; ++i) {
-        LOG(task, stdlib, "  byte %" PRIdPTR ": 0x%" PRIx8, i, data[i]);
-    }
-}
-
-struct rust_tag {
-    uintptr_t discriminant;
-    uint8_t variant[];
-};
-
-extern "C" CDECL void
-debug_tag(type_desc *t, rust_tag *tag) {
-    rust_task *task = rust_get_current_task();
-
-    LOG(task, stdlib, "debug_tag");
-    debug_tydesc_helper(t);
-    LOG(task, stdlib, "  discriminant %" PRIdPTR, tag->discriminant);
-
-    for (uintptr_t i = 0; i < t->size - sizeof(tag->discriminant); ++i)
-        LOG(task, stdlib, "  byte %" PRIdPTR ": 0x%" PRIx8, i,
-            tag->variant[i]);
-}
-
-extern "C" CDECL void
-debug_fn(type_desc *t, fn_env_pair *fn) {
-    rust_task *task = rust_get_current_task();
-    LOG(task, stdlib, "debug_fn");
-    debug_tydesc_helper(t);
-    LOG(task, stdlib, " fn at 0x%" PRIxPTR, fn->f);
-    LOG(task, stdlib, "  env at 0x%" PRIxPTR, fn->env);
-    if (fn->env) {
-        LOG(task, stdlib, "    refcount %" PRIdPTR, fn->env->ref_count);
-    }
-}
-
-extern "C" CDECL void *
-debug_ptrcast(type_desc *from_ty,
-              type_desc *to_ty,
-              void *ptr) {
-    rust_task *task = rust_get_current_task();
-    LOG(task, stdlib, "debug_ptrcast from");
-    debug_tydesc_helper(from_ty);
-    LOG(task, stdlib, "to");
-    debug_tydesc_helper(to_ty);
-    return ptr;
-}
-
 extern "C" CDECL void *
 debug_get_stk_seg() {
     rust_task *task = rust_get_current_task();
@@ -583,11 +496,6 @@ rust_should_log_console() {
     return (uintptr_t)should_log_console();
 }
 
-extern "C" CDECL void
-rust_dbg_breakpoint() {
-    BREAKPOINT_AWESOME;
-}
-
 extern "C" CDECL rust_sched_id
 rust_osmain_sched_id() {
     rust_task *task = rust_get_current_task();
diff --git a/src/rt/rust_debug.h b/src/rt/rust_debug.h
index 7f025bb908e..951d2c36cb8 100644
--- a/src/rt/rust_debug.h
+++ b/src/rt/rust_debug.h
@@ -17,19 +17,6 @@
 #include <string>
 #include <cstdlib>
 
-#ifndef _WIN32
-
-#include <signal.h>
-#define BREAKPOINT_AWESOME                      \
-    do {                                        \
-        signal(SIGTRAP, SIG_IGN);               \
-        raise(SIGTRAP);                         \
-    } while (0)
-
-#else
-#define BREAKPOINT_AWESOME
-#endif
-
 struct rust_task;
 
 namespace debug {
diff --git a/src/rt/rustrt.def.in b/src/rt/rustrt.def.in
index 7b438849751..75e02d0a103 100644
--- a/src/rt/rustrt.def.in
+++ b/src/rt/rustrt.def.in
@@ -1,9 +1,3 @@
-debug_box
-debug_fn
-debug_opaque
-debug_ptrcast
-debug_tag
-debug_tydesc
 debug_get_stk_seg
 debug_abi_1
 debug_abi_2
@@ -178,7 +172,6 @@ rust_dbg_lock_wait
 rust_dbg_lock_signal
 rust_dbg_call
 rust_dbg_do_nothing
-rust_dbg_breakpoint
 rust_osmain_sched_id
 rust_task_inhibit_kill
 rust_task_allow_kill