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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
28 lines
722 B
C
28 lines
722 B
C
#ifndef COSMOPOLITAN_LIBC_CALLS_STRUCT_SIGACTION_XNU_H_
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#define COSMOPOLITAN_LIBC_CALLS_STRUCT_SIGACTION_XNU_H_
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#include "libc/calls/internal.h"
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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struct __darwin_ucontext;
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struct __darwin_siginfo;
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struct sigset$xnu {
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uint32_t sig[1];
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};
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struct sigaction$xnu_in {
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intptr_t sa_handler;
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void (*sa_restorer)(void *, int, int, const struct __darwin_siginfo *,
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const struct __darwin_ucontext *);
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struct sigset$xnu sa_mask;
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int32_t sa_flags;
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};
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struct sigaction$xnu_out {
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intptr_t sa_handler;
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struct sigset$xnu sa_mask;
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int32_t sa_flags;
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};
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* COSMOPOLITAN_LIBC_CALLS_STRUCT_SIGACTION_XNU_H_ */
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