minimal-bootstrap.ln-boot: init at unstable-2023-05-01

pkgs/os-specific/linux/minimal-bootstrap/default.nix

@@ -15,5 +15,7 @@ lib.makeScope newScope (self: with self; {
   nyacc = callPackage ./mes/nyacc.nix { };
   mes = callPackage ./mes { };
 
+  ln-boot = callPackage ./ln-boot { };
+
   tinycc-with-mes-libc = callPackage ./tinycc/default.nix { };
 })

pkgs/os-specific/linux/minimal-bootstrap/ln-boot/default.nix

@@ -0,0 +1,27 @@
+{ lib
+, runCommand
+, mes
+}:
+let
+  pname = "ln-boot";
+  version = "unstable-2023-05-01";
+
+  src = ./ln.c;
+in
+runCommand "${pname}-${version}" {
+  inherit pname version;
+
+  meta = with lib; {
+    description = "Basic tool for creating symbolic links";
+    license = licenses.mit;
+    maintainers = with maintainers; [ emilytrau ];
+    mainProgram = "ln";
+    platforms = platforms.unix;
+  };
+} ''
+  mkdir -p ''${out}/bin
+  ${mes}/bin/mes --no-auto-compile -e main ${mes}/bin/mescc.scm -- \
+    -lc+tcc \
+    -o ''${out}/bin/ln \
+    ${src}
+''

pkgs/os-specific/linux/minimal-bootstrap/ln-boot/ln.c

@@ -0,0 +1,17 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+
+int main(int argc, char** argv)
+{
+  if (argc != 4 || strcmp(argv[1], "-s")) {
+    fputs("Usage: ", stdout);
+    fputs(argv[0], stdout);
+    fputs("ln -s TARGET LINK_NAME\n", stdout);
+    exit(EXIT_FAILURE);
+  }
+
+  symlink(argv[2], argv[3]);
+  exit(EXIT_SUCCESS);
+}

pkgs/os-specific/linux/minimal-bootstrap/mes/default.nix

@@ -66,20 +66,24 @@ let
     + "lib/linux/waitpid.c lib/linux/x86-mes-${cc}/syscall.c lib/linux/getpid.c "
     + "lib/linux/kill.c");
   libc_tcc_SOURCES = cc: lib.splitString " " (
-    "lib/ctype/islower.c lib/ctype/isupper.c lib/ctype/tolower.c lib/ctype/toupper.c "
-    + "lib/mes/abtod.c lib/mes/dtoab.c lib/mes/search-path.c lib/posix/execvp.c "
-    + "lib/stdio/fclose.c lib/stdio/fdopen.c lib/stdio/ferror.c lib/stdio/fflush.c "
-    + "lib/stdio/fopen.c lib/stdio/fprintf.c lib/stdio/fread.c lib/stdio/fseek.c "
-    + "lib/stdio/ftell.c lib/stdio/fwrite.c lib/stdio/printf.c lib/stdio/remove.c "
-    + "lib/stdio/snprintf.c lib/stdio/sprintf.c lib/stdio/sscanf.c lib/stdio/vfprintf.c "
-    + "lib/stdio/vprintf.c lib/stdio/vsnprintf.c lib/stdio/vsprintf.c lib/stdio/vsscanf.c "
-    + "lib/stdlib/calloc.c lib/stdlib/qsort.c lib/stdlib/strtod.c lib/stdlib/strtof.c "
-    + "lib/stdlib/strtol.c lib/stdlib/strtold.c lib/stdlib/strtoll.c lib/stdlib/strtoul.c "
-    + "lib/stdlib/strtoull.c lib/string/memmem.c lib/string/strcat.c lib/string/strchr.c "
-    + "lib/string/strlwr.c lib/string/strncpy.c lib/string/strrchr.c lib/string/strstr.c "
-    + "lib/string/strupr.c lib/stub/sigaction.c lib/stub/ldexp.c lib/stub/mprotect.c "
-    + "lib/stub/localtime.c lib/stub/sigemptyset.c lib/x86-mes-${cc}/setjmp.c "
-    + "lib/linux/close.c lib/linux/rmdir.c lib/linux/stat.c");
+      "lib/ctype/islower.c lib/ctype/isupper.c lib/ctype/tolower.c lib/ctype/toupper.c "
+      + "lib/mes/abtod.c lib/mes/dtoab.c lib/mes/search-path.c lib/posix/execvp.c "
+      + "lib/stdio/fclose.c lib/stdio/fdopen.c lib/stdio/ferror.c lib/stdio/fflush.c "
+      + "lib/stdio/fopen.c lib/stdio/fprintf.c lib/stdio/fread.c lib/stdio/fseek.c "
+      + "lib/stdio/ftell.c lib/stdio/fwrite.c lib/stdio/printf.c lib/stdio/remove.c "
+      + "lib/stdio/snprintf.c lib/stdio/sprintf.c lib/stdio/sscanf.c lib/stdio/vfprintf.c "
+      + "lib/stdio/vprintf.c lib/stdio/vsnprintf.c lib/stdio/vsprintf.c lib/stdio/vsscanf.c "
+      + "lib/stdlib/calloc.c lib/stdlib/qsort.c lib/stdlib/strtod.c lib/stdlib/strtof.c "
+      + "lib/stdlib/strtol.c lib/stdlib/strtold.c lib/stdlib/strtoll.c lib/stdlib/strtoul.c "
+      + "lib/stdlib/strtoull.c lib/string/memmem.c lib/string/strcat.c lib/string/strchr.c "
+      + "lib/string/strlwr.c lib/string/strncpy.c lib/string/strrchr.c lib/string/strstr.c "
+      + "lib/string/strupr.c lib/stub/sigaction.c lib/stub/ldexp.c lib/stub/mprotect.c "
+      + "lib/stub/localtime.c lib/stub/sigemptyset.c lib/x86-mes-${cc}/setjmp.c "
+      + "lib/linux/close.c lib/linux/rmdir.c lib/linux/stat.c"
+    ) ++ [
+      # add symlink() to libc+tcc so we can use it in ln-boot
+      "lib/linux/symlink.c"
+    ];
   libc_gnu_SOURCES = cc: libc_tcc_SOURCES cc ++ lib.splitString " " (
     "lib/ctype/isalnum.c lib/ctype/isalpha.c lib/ctype/isascii.c lib/ctype/iscntrl.c "
     + "lib/ctype/isgraph.c lib/ctype/isprint.c lib/ctype/ispunct.c lib/dirent/__getdirentries.c "