boot2

Playing with the boostrap
git clone https://git.ryansepassi.com/git/boot2.git
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unified-libc.c (4658B)

      1 /* unified-libc.c — single translation unit gathering every vendored
      2  * mes-libc .c plus boot2-syscall.c. The host preprocessor flattens
      3  * the whole thing to libc.flat.c, which cc.scm compiles to libc.P1pp.
      4  *
      5  * Order matters in a few specific places:
      6  *   1. boot2-syscall.c declares the extern sys_* P1pp labels and
      7  *      defines _read / _write / _open3 / close / lseek / brk / unlink /
      8  *      _exit. It comes early so later layers see the prototypes.
      9  *   2. mes/globals.c defines errno / __stdin etc. as tentative
     10  *      definitions; mes/mes_open.c later assigns them initial values.
     11  *      Tentative-then-initialized is a standard C resolution; cc.scm
     12  *      follows the C linkage rule (commit 6488cca).
     13  *   3. linux/malloc.c provides the allocator and the __brk pointer
     14  *      that posix/sbrk.c re-exports.
     15  *
     16  * Everything else is order-independent — each mes .c is a self-contained
     17  * function or two with its own header includes.
     18  */
     19 
     20 #include <mes/lib.h>
     21 
     22 /* ---- low-level: P1pp syscall wrappers + thin posix glue --------- */
     23 #include "boot2-syscall.c"
     24 
     25 /* ---- ctype ------------------------------------------------------ */
     26 #include "ctype/isalnum.c"
     27 #include "ctype/isalpha.c"
     28 #include "ctype/isascii.c"
     29 #include "ctype/iscntrl.c"
     30 #include "ctype/isdigit.c"
     31 #include "ctype/isgraph.c"
     32 #include "ctype/islower.c"
     33 #include "ctype/isnumber.c"
     34 #include "ctype/isprint.c"
     35 #include "ctype/ispunct.c"
     36 #include "ctype/isspace.c"
     37 #include "ctype/isupper.c"
     38 #include "ctype/isxdigit.c"
     39 #include "ctype/tolower.c"
     40 #include "ctype/toupper.c"
     41 
     42 /* ---- string ----------------------------------------------------- */
     43 /* memcpy/memmove/memset/memcmp are compiler-builtin runtime supplied
     44    by libp1pp (see P1/P1pp.P1pp). Omit mes-libc's copies so the
     45    symbols are not duplicated at hex2++ link time. */
     46 #include "string/memchr.c"
     47 #include "string/memmem.c"
     48 #include "string/strcat.c"
     49 #include "string/strchr.c"
     50 #include "string/strcmp.c"
     51 #include "string/strcpy.c"
     52 #include "string/strcspn.c"
     53 #include "string/strdup.c"
     54 #include "string/strerror.c"
     55 #include "string/strlen.c"
     56 #include "string/strncat.c"
     57 #include "string/strncmp.c"
     58 #include "string/strncpy.c"
     59 #include "string/strpbrk.c"
     60 #include "string/strrchr.c"
     61 #include "string/strspn.c"
     62 #include "string/strstr.c"
     63 #include "string/strupr.c"
     64 
     65 /* ---- mes runtime ------------------------------------------------ */
     66 #include "mes/globals.c"
     67 #include "mes/cast.c"
     68 #include "mes/__assert_fail.c"
     69 #include "mes/abtol.c"
     70 #include "mes/dtoab.c"
     71 #include "mes/eputc.c"
     72 #include "mes/eputs.c"
     73 #include "mes/fdgetc.c"
     74 #include "mes/fdgets.c"
     75 #include "mes/fdputc.c"
     76 #include "mes/fdputs.c"
     77 #include "mes/fdungetc.c"
     78 #include "mes/__buffered_read.c"
     79 #include "mes/__init_io.c"
     80 #include "mes/__mes_debug.c"
     81 #include "mes/itoa.c"
     82 #include "mes/ltoa.c"
     83 #include "mes/ltoab.c"
     84 #include "mes/mes_open.c"
     85 #include "mes/ntoab.c"
     86 #include "mes/oputc.c"
     87 #include "mes/oputs.c"
     88 #include "mes/search-path.c"
     89 #include "mes/ultoa.c"
     90 #include "mes/utoa.c"
     91 
     92 /* ---- stdlib ----------------------------------------------------- */
     93 #include "stdlib/__exit.c"
     94 #include "stdlib/abort.c"
     95 #include "stdlib/atoi.c"
     96 #include "stdlib/atol.c"
     97 #include "stdlib/calloc.c"
     98 #include "stdlib/exit.c"
     99 #include "stdlib/free.c"
    100 #include "stdlib/puts.c"
    101 #include "stdlib/qsort.c"
    102 #include "stdlib/realloc.c"
    103 #include "stdlib/strtof.c"
    104 #include "stdlib/strtol.c"
    105 #include "stdlib/strtoll.c"
    106 #include "stdlib/strtoul.c"
    107 #include "stdlib/strtoull.c"
    108 
    109 /* ---- linux (allocator only; the rest replaced by boot2-syscall.c) */
    110 #include "linux/malloc.c"
    111 
    112 /* ---- posix ------------------------------------------------------ */
    113 #include "posix/buffered-read.c"
    114 #include "posix/execvp.c"
    115 #include "posix/getcwd.c"
    116 #include "posix/getenv.c"
    117 #include "posix/open.c"
    118 #include "posix/sbrk.c"
    119 #include "posix/write.c"
    120 
    121 /* ---- stdio ------------------------------------------------------ */
    122 #include "stdio/clearerr.c"
    123 #include "stdio/fclose.c"
    124 #include "stdio/fdopen.c"
    125 #include "stdio/feof.c"
    126 #include "stdio/ferror.c"
    127 #include "stdio/fflush.c"
    128 #include "stdio/fgetc.c"
    129 #include "stdio/fgets.c"
    130 #include "stdio/fileno.c"
    131 #include "stdio/fopen.c"
    132 #include "stdio/fprintf.c"
    133 #include "stdio/fputc.c"
    134 #include "stdio/fputs.c"
    135 #include "stdio/fread.c"
    136 #include "stdio/fseek.c"
    137 #include "stdio/ftell.c"
    138 #include "stdio/fwrite.c"
    139 #include "stdio/getc.c"
    140 #include "stdio/perror.c"
    141 #include "stdio/printf.c"
    142 #include "stdio/putc.c"
    143 #include "stdio/remove.c"
    144 #include "stdio/snprintf.c"
    145 #include "stdio/sprintf.c"
    146 #include "stdio/ungetc.c"
    147 #include "stdio/vfprintf.c"
    148 #include "stdio/vprintf.c"
    149 #include "stdio/vsnprintf.c"
    150 #include "stdio/vsprintf.c"