LibELF: Move ELF classes into namespace ELF

This is for consistency with other namespace changes that were made a while back to the other libraries :)
2025-05-31 19:08:10 +00:00 · 2020-04-11 12:24:07 -06:00 · 2020-04-11 12:24:07 -06:00 · 21b5909dc6
commit 21b5909dc6
parent 6b0f47683c
18 changed files with 203 additions and 169 deletions
--- a/Libraries/LibELF/Loader.h
+++ b/Libraries/LibELF/Loader.h
@ -0,0 +1,101 @@
+/*
+ * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#pragma once
+
+#include <AK/Function.h>
+#include <AK/HashMap.h>
+#include <AK/OwnPtr.h>
+#include <AK/StringView.h>
+#include <AK/Vector.h>
+#include <LibELF/Image.h>
+
+#ifdef KERNEL
+#    include <LibBareMetal/Memory/VirtualAddress.h>
+namespace Kernel {
+class Region;
+}
+#endif
+
+namespace ELF {
+
+class Loader {
+public:
+    explicit Loader(const u8*, size_t);
+    ~Loader();
+
+    bool load();
+#if defined(KERNEL)
+    Function<void*(VirtualAddress, size_t, size_t, bool, bool, const String&)> alloc_section_hook;
+    Function<void*(size_t, size_t)> tls_section_hook;
+    Function<void*(VirtualAddress, size_t, size_t, size_t, bool r, bool w, bool x, const String&)> map_section_hook;
+    VirtualAddress entry() const { return m_image.entry(); }
+#endif
+    char* symbol_ptr(const char* name);
+
+    bool has_symbols() const { return m_symbol_count; }
+
+    String symbolicate(u32 address, u32* offset = nullptr) const;
+    Optional<Image::Symbol> find_symbol(u32 address, u32* offset = nullptr) const;
+
+private:
+    bool layout();
+    bool perform_relocations();
+    void* lookup(const ELF::Image::Symbol&);
+    char* area_for_section(const ELF::Image::Section&);
+    char* area_for_section_name(const char*);
+
+    struct PtrAndSize {
+        PtrAndSize() {}
+        PtrAndSize(char* p, unsigned s)
+            : ptr(p)
+            , size(s)
+        {
+        }
+
+        char* ptr { nullptr };
+        unsigned size { 0 };
+    };
+    Image m_image;
+
+    size_t m_symbol_count { 0 };
+
+    struct SortedSymbol {
+        u32 address;
+        StringView name;
+#ifndef KERNEL
+        String demangled_name;
+        Optional<Image::Symbol> symbol;
+#endif
+    };
+#ifdef KERNEL
+    mutable OwnPtr<Kernel::Region> m_sorted_symbols_region;
+#else
+    mutable Vector<SortedSymbol> m_sorted_symbols;
+#endif
+};
+
+} // end namespace ELF