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Add x86_64-linux-gnu emulator

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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
This commit is contained in:
Justine Tunney 2020-08-25 04:23:25 -07:00
parent 467504308a
commit f4f4caab0e
1052 changed files with 65667 additions and 7825 deletions
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12
libc/sysv/syscalls.sh
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@ -184,8 +184,6 @@ scall settimeofday 0x0044007a207a00a4 globl
scall mount 0x0015001520a700a5 globl
scall reboot 0x00370037203700a9 globl
scall quotactl 0x0094009420a500b3 globl
scall 'utime$sysv' 0xffffffffffff0084 globl hidden
scall 'utimes$sysv' 0x004c008a208a00eb globl hidden
scall setfsuid 0xffffffffffff007a globl
scall setfsgid 0xffffffffffff007b globl
scall capget 0xffffffffffff007d globl
@ -282,7 +280,11 @@ scall inotify_rm_watch 0xffffffffffff00ff globl
scall 'openat$sysv' 0x014101f321cf0101 globl hidden # Linux 2.6.16+ (c. 2007)
scall 'mkdirat$sysv' 0x013e01f021db0102 globl hidden
scall 'fchownat$sysv' 0x013b01eb21d40104 globl hidden # @asyncsignalsafe
scall futimesat 0xffff01eeffff0105 globl hidden # @asyncsignalsafe
scall 'utime$sysv' 0xffffffffffff0084 globl hidden
scall 'utimes$sysv' 0x004c008a208a00eb globl hidden
scall 'futimesat$sysv' 0xffff01eeffff0105 globl hidden # @asyncsignalsafe
scall 'futimes$sysv' 0x004d00ce208bffff globl hidden
scall 'futimens$sysv' 0x00550222ffffffff globl hidden
scall '__fstatat$sysv' 0x002a022821d60106 globl hidden # a.k.a. newfstatat(); FreeBSD 12+; needs stat2linux()
scall 'unlinkat$sysv' 0x014501f721d80107 globl hidden
scall 'renameat$sysv' 0x014301f521d10108 globl hidden
@ -301,7 +303,7 @@ scall move_pages 0xffffffffffff0117 globl # NOTE: We view Red Hat versio
#──────────────────────RHEL 5.0 LIMIT──────────────────────── # ←┬─ last gplv2 distro w/ sysv init was rhel5 c. 2007
scall '__preadv$sysv' 0x010b0121ffff0127 globl hidden # ├─ cosmopolitan at minimum requires rhel5
scall '__pwritev$sysv' 0x010c0122ffff0128 globl hidden # ├─ python modules need to work on this (pep513)
scall utimensat 0x00540223ffff0118 globl hidden # └─ end of life 2020-11-30 (extended)
scall '__utimensat$sysv' 0x00540223ffff0118 globl hidden # └─ end of life 2020-11-30 (extended)
scall 'fallocate$sysv' 0xffffffffffff011d globl hidden
scall 'posix_fallocate$sysv' 0xffff0212ffffffff globl hidden
scall '__accept4$sysv' 0x005d021dffff0120 globl hidden # Linux 2.6.28+
@ -380,7 +382,6 @@ scall getfh 0x00a100a120a1ffff globl
scall chflags 0x002200222022ffff globl
scall getfsstat 0x003e022d215bffff globl
scall nfssvc 0x009b009b209bffff globl
scall futimes 0x004d00ce208bffff globl
scall adjtime 0x008c008c208cffff globl
scall fchflags 0x002300232023ffff globl
scall '__seteuid$bsd' 0x00b700b720b7ffff globl hidden # wrapped via setreuid()
@ -424,7 +425,6 @@ scall auditon 0xffff01be215fffff globl
scall msgsys 0xffff00aa20fcffff globl
scall shmsys 0xffff00ab20fdffff globl
#─────────────────────FREEBSD & OPENBSD──────────────────────
scall futimens 0x00550222ffffffff globl
scall fhstat 0x01260229ffffffff globl
scall chflagsat 0x006b021cffffffff globl
scall profil 0x002c002cffffffff globl