git subrepo clone https://github.com/pcercuei/lightrec.git deps/lightrec

subrepo:
  subdir:   "deps/lightrec"
  merged:   "6c69e10"
upstream:
  origin:   "https://github.com/pcercuei/lightrec.git"
  branch:   "master"
  commit:   "6c69e10"
git-subrepo:
  version:  "0.4.1"
  origin:   "https://github.com/ingydotnet/git-subrepo.git"
  commit:   "a04d8c2"

1 files changed, 130 insertions, 0 deletions

diff --git a/deps/lightrec/memmanager.c b/deps/lightrec/memmanager.c
new file mode 100644
index 0000000..2e6b99b
--- /dev/null
+++ b/deps/lightrec/memmanager.c
@@ -0,0 +1,130 @@
+/*
+ * Copyright (C) 2019-2020 Paul Cercueil <paul@crapouillou.net>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ */
+
+#include "config.h"
+#include "lightrec-private.h"
+#include "memmanager.h"
+
+#include <stdlib.h>
+#if ENABLE_TINYMM
+#include <tinymm.h>
+#endif
+
+#ifdef ENABLE_THREADED_COMPILER
+#include <stdatomic.h>
+
+static atomic_uint lightrec_bytes[MEM_TYPE_END];
+
+void lightrec_register(enum mem_type type, unsigned int len)
+{
+	atomic_fetch_add(&lightrec_bytes[type], len);
+}
+
+void lightrec_unregister(enum mem_type type, unsigned int len)
+{
+	atomic_fetch_sub(&lightrec_bytes[type], len);
+}
+
+unsigned int lightrec_get_mem_usage(enum mem_type type)
+{
+	return atomic_load(&lightrec_bytes[type]);
+}
+
+#else /* ENABLE_THREADED_COMPILER */
+
+static unsigned int lightrec_bytes[MEM_TYPE_END];
+
+void lightrec_register(enum mem_type type, unsigned int len)
+{
+	lightrec_bytes[type] += len;
+}
+
+void lightrec_unregister(enum mem_type type, unsigned int len)
+{
+	lightrec_bytes[type] -= len;
+}
+
+unsigned int lightrec_get_mem_usage(enum mem_type type)
+{
+	return lightrec_bytes[type];
+}
+#endif /* ENABLE_THREADED_COMPILER */
+
+unsigned int lightrec_get_total_mem_usage(void)
+{
+	unsigned int i, count;
+
+	for (i = 0, count = 0; i < MEM_TYPE_END; i++)
+		count += lightrec_get_mem_usage((enum mem_type)i);
+
+	return count;
+}
+
+void * lightrec_malloc(struct lightrec_state *state,
+		       enum mem_type type, unsigned int len)
+{
+	void *ptr;
+
+#if ENABLE_TINYMM
+	if (type == MEM_FOR_IR)
+		ptr = tinymm_malloc(state->tinymm, len);
+	else
+#endif
+		ptr = malloc(len);
+	if (!ptr)
+		return NULL;
+
+	lightrec_register(type, len);
+
+	return ptr;
+}
+
+void * lightrec_calloc(struct lightrec_state *state,
+		       enum mem_type type, unsigned int len)
+{
+	void *ptr;
+
+#if ENABLE_TINYMM
+	if (type == MEM_FOR_IR)
+		ptr = tinymm_zalloc(state->tinymm, len);
+	else
+#endif
+		ptr = calloc(1, len);
+	if (!ptr)
+		return NULL;
+
+	lightrec_register(type, len);
+
+	return ptr;
+}
+
+void lightrec_free(struct lightrec_state *state,
+		   enum mem_type type, unsigned int len, void *ptr)
+{
+	lightrec_unregister(type, len);
+#if ENABLE_TINYMM
+	if (type == MEM_FOR_IR)
+		tinymm_free(state->tinymm, ptr);
+	else
+#endif
+		free(ptr);
+}
+
+float lightrec_get_average_ipi(void)
+{
+	unsigned int code_mem = lightrec_get_mem_usage(MEM_FOR_CODE);
+	unsigned int native_mem = lightrec_get_mem_usage(MEM_FOR_MIPS_CODE);
+
+	return native_mem ? (float)code_mem / (float)native_mem : 0.0f;
+}