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Lectures/multifile_compilation.md

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+# Բազմաֆայլ Կոմպիլացիա
+
+
+1947թ
+As early as 1947, programmers started to use primitive loaders that could
+take program routines stored on separate tapes and combine and relocate
+them into one program. By the early 1960s, these loaders had evolved into
+full-fledged linkage editors.
+
+Since program memory remained expensive
+and limited and computers were (by modern standards) slow, these linkers
+contained complex features for creating complex memory overlay structures to cram large programs into small memory, and for re-editing previously linked programs to save the time needed to rebuild a program from
+scratch.
+During the 1970s and 1980s there was little progress in linking technology. Linkers tended to become even simpler, as virtual memory moved
+much of the job of storage management away from applications and overlays, into the operating system, and as computers became faster and disks
+larger, it became easier to recreate a linked program from scratch to replace a few modules rather than to re-link just the changes. In the 1990s
+linkers have again become more complex, adding support for modern features including dynamically linked shared libraries and the unusual demands of C++. Radical new processor architectures with wide instruction
+words and compiler-scheduled memory accesses, such as the Intel IA64,
+will also put new demands on linkers to ensure that the complex requirements of the code are met in linked prograsm
+
+
+- Միաֆայլ-ծրագիր
+    - Դժվար է գրել/խնամել մեծ ծրագրեր
+- Բազմաֆայլ ծրագիր
+   - Հարմարավետություն
+   - Պրցեդուրաի բազմակի օգտագործում <գրադարան>
+   - Կոմպիլացի մեկ անգամ, բազմակի կիրառում 
+
+- Պատմական ակնարկ
+- Օբյեկտային ֆայլ
+
+- Loading vs Linking
+
+- Program loading
+- Relocation
+- Symbol Resolution
+
+# Object File
+- Object code
+- Debug symbols
+- Symbol Table
+
+- Segments
+
+- Անունների ֆորմատը (Name mangling)
+
+
+
+Հղումներ
+Linking and Loading
+