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f4f4caab0e
I wanted a tiny scriptable meltdown proof way to run userspace programs and visualize how program execution impacts memory. It helps to explain how things like Actually Portable Executable works. It can show you how the GCC generated code is going about manipulating matrices and more. I didn't feel fully comfortable with Qemu and Bochs because I'm not smart enough to understand them. I wanted something like gVisor but with much stronger levels of assurances. I wanted a single binary that'll run, on all major operating systems with an embedded GPL barrier ZIP filesystem that is tiny enough to transpile to JavaScript and run in browsers too. https://justine.storage.googleapis.com/emulator625.mp4
21 lines
566 B
C
21 lines
566 B
C
#ifndef COSMOPOLITAN_TOOL_BUILD_LIB_LOADER_H_
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#define COSMOPOLITAN_TOOL_BUILD_LIB_LOADER_H_
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#include "libc/elf/struct/ehdr.h"
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#include "tool/build/lib/machine.h"
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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COSMOPOLITAN_C_START_
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struct Elf {
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const char *prog;
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Elf64_Ehdr *ehdr;
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size_t size;
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int64_t base;
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};
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void LoadProgram(struct Machine *, const char *, char **, char **,
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struct Elf *);
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void LoadDebugSymbols(struct Elf *);
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COSMOPOLITAN_C_END_
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* COSMOPOLITAN_TOOL_BUILD_LIB_LOADER_H_ */
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