From 68e65dd6025fadb612d807b919326ce1756d63a1 Mon Sep 17 00:00:00 2001
From: Alex <enderice2@users.noreply.github.com>
Date: Mon, 7 Nov 2022 08:34:02 +0200
Subject: [PATCH] Update libc

---
 .vscode/c_boilerplates.code-snippets | 28 ++++++++++++++++++++++++++++
 .vscode/c_cpp_properties.json        | 26 ++++++++++++++++++++++++++
 Fennix Userspace.code-workspace      |  3 ++-
 Makefile                             |  1 +
 libc/Makefile                        |  1 +
 libc/include/dlfcn.h                 | 11 +++++++++++
 libc/include/types.h                 |  6 ++++++
 libc/runtime/crti.c                  |  0
 libc/runtime/crtn.c                  |  0
 libc/src/dlfcn.c                     | 23 +++++++++++++++++++++++
 10 files changed, 98 insertions(+), 1 deletion(-)
 create mode 100644 .vscode/c_boilerplates.code-snippets
 create mode 100644 .vscode/c_cpp_properties.json
 create mode 100644 libc/include/dlfcn.h
 create mode 100644 libc/runtime/crti.c
 create mode 100644 libc/runtime/crtn.c
 create mode 100644 libc/src/dlfcn.c

diff --git a/.vscode/c_boilerplates.code-snippets b/.vscode/c_boilerplates.code-snippets
new file mode 100644
index 00000000..ef558a13
--- /dev/null
+++ b/.vscode/c_boilerplates.code-snippets
@@ -0,0 +1,28 @@
+{
+	"Fennix Kernel Header": {
+		"prefix": [
+			"head",
+		],
+		"body": [
+			"#ifndef __FENNIX_LIBC_${2:header}_H__",
+			"#define __FENNIX_LIBC_${2:header}_H__",
+			"",
+			"#include <types.h>",
+			"",
+			"$0",
+			"",
+			"#endif // !__FENNIX_LIBC_${2:header}_H__",
+			""
+		],
+		"description": "Create kernel header."
+	},
+	"Fennix Kernel brief": {
+		"prefix": [
+			"brief",
+		],
+		"body": [
+			"/** @brief $0 */"
+		],
+		"description": "Create kernel documentation brief."
+	}
+}
\ No newline at end of file
diff --git a/.vscode/c_cpp_properties.json b/.vscode/c_cpp_properties.json
new file mode 100644
index 00000000..ef225a0d
--- /dev/null
+++ b/.vscode/c_cpp_properties.json
@@ -0,0 +1,26 @@
+{
+    "configurations": [
+        {
+            "name": "Linux",
+            "includePath": [
+                "${workspaceFolder}/libc/include/**",
+                "${workspaceFolder}/out/system/include**"
+            ],
+            "defines": [
+                "__debug_vscode__",
+                "GIT_COMMIT=\"0000000000000000000000000000000000000000\"",
+                "GIT_COMMIT_SHORT=\"0000000\"",
+                "DEBUG=\"1\""
+            ],
+            "compilerPath": "/usr/bin/gcc",
+            "cStandard": "c17",
+            "cppStandard": "c++20",
+            "intelliSenseMode": "gcc-x64",
+            "configurationProvider": "ms-vscode.makefile-tools",
+            "compilerArgs": [
+                "-pipe",
+            ]
+        }
+    ],
+    "version": 4
+}
\ No newline at end of file
diff --git a/Fennix Userspace.code-workspace b/Fennix Userspace.code-workspace
index 22148c5d..8508b496 100644
--- a/Fennix Userspace.code-workspace	
+++ b/Fennix Userspace.code-workspace	
@@ -7,7 +7,8 @@
 	"settings": {
 		"debug.allowBreakpointsEverywhere": true,
 		"files.associations": {
-			"fex.hpp": "c"
+			"fex.hpp": "c",
+			"types.h": "c"
 		}
 	}
 }
\ No newline at end of file
diff --git a/Makefile b/Makefile
index 5fb33edd..e12a3e3c 100644
--- a/Makefile
+++ b/Makefile
@@ -2,6 +2,7 @@ build:
 	mkdir -p out
 	mkdir -p out/system
 	mkdir -p out/system/lib
+	mkdir -p out/system/include
 	make --quiet -C libc build
 	make --quiet -C apps build
 
diff --git a/libc/Makefile b/libc/Makefile
index a595fa35..0906be25 100644
--- a/libc/Makefile
+++ b/libc/Makefile
@@ -1,4 +1,5 @@
 build:
+	cp include/* ../out/system/include
 	make --quiet -C runtime build
 	make --quiet -C libgcc build
 	make --quiet -C src build
diff --git a/libc/include/dlfcn.h b/libc/include/dlfcn.h
new file mode 100644
index 00000000..49752100
--- /dev/null
+++ b/libc/include/dlfcn.h
@@ -0,0 +1,11 @@
+#ifndef __FENNIX_LIBC_DLFCN_H__
+#define __FENNIX_LIBC_DLFCN_H__
+
+#include <types.h>
+
+void *dlopen(const char *filename, int flags);
+void *dlsym(void *handle, const char *symbol);
+int dlclose(void *handle);
+char *dlerror(void);
+
+#endif // !__FENNIX_LIBC_DLFCN_H__
diff --git a/libc/include/types.h b/libc/include/types.h
index e69de29b..5ec3064f 100644
--- a/libc/include/types.h
+++ b/libc/include/types.h
@@ -0,0 +1,6 @@
+#ifndef __FENNIX_LIBC_TYPES_H__
+#define __FENNIX_LIBC_TYPES_H__
+
+#define NULL ((void *)0)
+
+#endif // !__FENNIX_LIBC_TYPES_H__
diff --git a/libc/runtime/crti.c b/libc/runtime/crti.c
new file mode 100644
index 00000000..e69de29b
diff --git a/libc/runtime/crtn.c b/libc/runtime/crtn.c
new file mode 100644
index 00000000..e69de29b
diff --git a/libc/src/dlfcn.c b/libc/src/dlfcn.c
new file mode 100644
index 00000000..5866c5f3
--- /dev/null
+++ b/libc/src/dlfcn.c
@@ -0,0 +1,23 @@
+#include <dlfcn.h>
+
+static char *error = "Not implemented";
+
+__attribute__((weak)) void *dlopen(const char *filename, int flags)
+{
+    return NULL;
+}
+
+__attribute__((weak)) void *dlsym(void *handle, const char *symbol)
+{
+    return NULL;
+}
+
+__attribute__((weak)) int dlclose(void *handle)
+{
+    return -1;
+}
+
+__attribute__((weak)) char *dlerror(void)
+{
+    return error;
+}