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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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53
third_party/regex/regex.h vendored
View file

@ -10,50 +10,51 @@ COSMOPOLITAN_C_START_
#endif
#define REG_EXTENDED 1
#define REG_ICASE 2
#define REG_NEWLINE 4
#define REG_NOSUB 8
#define REG_ICASE 2
#define REG_NEWLINE 4
#define REG_NOSUB 8
#define REG_NOTBOL 1
#define REG_NOTEOL 2
#define REG_OK 0
#define REG_NOMATCH 1
#define REG_BADPAT 2
#define REG_OK 0
#define REG_NOMATCH 1
#define REG_BADPAT 2
#define REG_ECOLLATE 3
#define REG_ECTYPE 4
#define REG_EESCAPE 5
#define REG_ESUBREG 6
#define REG_EBRACK 7
#define REG_EPAREN 8
#define REG_EBRACE 9
#define REG_BADBR 10
#define REG_ERANGE 11
#define REG_ESPACE 12
#define REG_BADRPT 13
#define REG_ECTYPE 4
#define REG_EESCAPE 5
#define REG_ESUBREG 6
#define REG_EBRACK 7
#define REG_EPAREN 8
#define REG_EBRACE 9
#define REG_BADBR 10
#define REG_ERANGE 11
#define REG_ESPACE 12
#define REG_BADRPT 13
#define REG_ENOSYS -1
typedef long regoff_t;
typedef struct re_pattern_buffer {
struct Regex {
size_t re_nsub;
void *__opaque, *__padding[4];
size_t __nsub2;
char __padding2;
} regex_t;
};
typedef struct {
struct RegexMatch {
regoff_t rm_so;
regoff_t rm_eo;
} regmatch_t;
};
int regcomp(regex_t *preg, const char *regex, int flags);
int regexec(const regex_t *preg, const char *string, size_t nmatch,
regmatch_t pmatch[], int eflags);
void regfree(regex_t *preg);
size_t regerror(int errcode, const regex_t *preg, char *errbuf,
size_t errbufsize);
typedef struct Regex regex_t;
typedef struct RegexMatch regmatch_t;
int regcomp(regex_t *, const char *, int);
int regexec(const regex_t *, const char *, size_t, regmatch_t *, int);
size_t regerror(int, const regex_t *, char *, size_t);
void regfree(regex_t *);
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */