mirror of
https://github.com/jart/cosmopolitan.git
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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
53 lines
1.6 KiB
Makefile
53 lines
1.6 KiB
Makefile
#-*-mode:makefile-gmake;indent-tabs-mode:t;tab-width:8;coding:utf-8-*-┐
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#───vi: set et ft=make ts=8 tw=8 fenc=utf-8 :vi───────────────────────┘
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#
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# SYNOPSIS
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#
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# Universally Linkable Weak Functions
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#
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# DESCRIPTION
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#
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# This package contains no-op implementations for (1) synthetic
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# compiler surprises and (2) mission-critical core functions, e.g.
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# abort(). These functions are designed to work in all addressing
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# modes, including real mode. Every package links this. It's at the
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# base of the topological order of things.
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PKGS += LIBC_STUBS
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LIBC_STUBS_ARTIFACTS += LIBC_STUBS_A
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LIBC_STUBS = $(LIBC_STUBS_A)
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LIBC_STUBS_A = o/$(MODE)/libc/stubs/stubs.a
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LIBC_STUBS_A_FILES := $(wildcard libc/stubs/*.S)
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LIBC_STUBS_A_HDRS = \
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$(filter %.h,$(LIBC_STUBS_A_FILES))
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LIBC_STUBS_A_SRCS = \
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$(filter %.S,$(LIBC_STUBS_A_FILES))
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LIBC_STUBS_A_OBJS = \
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$(LIBC_STUBS_A_SRCS:%=o/$(MODE)/%.zip.o) \
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$(LIBC_STUBS_A_SRCS:%.S=o/$(MODE)/%.o)
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LIBC_STUBS_A_CHECKS = \
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$(LIBC_STUBS_A).pkg \
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$(LIBC_STUBS_A_HDRS:%=o/%.ok)
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$(LIBC_STUBS_A): \
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libc/stubs/ \
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$(LIBC_STUBS_A).pkg \
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$(LIBC_STUBS_A_OBJS)
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$(LIBC_STUBS_A).pkg: \
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$(LIBC_STUBS_A_OBJS) \
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$(foreach x,$(LIBC_STUBS_A_DIRECTDEPS),$($(x)_A).pkg)
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LIBC_STUBS_LIBS = $(foreach x,$(LIBC_STUBS_ARTIFACTS),$($(x)))
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LIBC_STUBS_SRCS = $(foreach x,$(LIBC_STUBS_ARTIFACTS),$($(x)_SRCS))
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LIBC_STUBS_CHECKS = $(foreach x,$(LIBC_STUBS_ARTIFACTS),$($(x)_CHECKS))
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LIBC_STUBS_OBJS = $(foreach x,$(LIBC_STUBS_ARTIFACTS),$($(x)_OBJS))
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.PHONY: o/$(MODE)/libc/stubs
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o/$(MODE)/libc/stubs: \
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$(LIBC_STUBS_CHECKS)
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