diff options
Diffstat (limited to 'REORG.TODO/sysdeps/mach/hurd/errnos.awk')
| -rw-r--r-- | REORG.TODO/sysdeps/mach/hurd/errnos.awk | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/mach/hurd/errnos.awk b/REORG.TODO/sysdeps/mach/hurd/errnos.awk new file mode 100644 index 0000000000..1cd2a0ac96 --- /dev/null +++ b/REORG.TODO/sysdeps/mach/hurd/errnos.awk @@ -0,0 +1,165 @@ +# Copyright (C) 1991-2017 Free Software Foundation, Inc. +# This file is part of the GNU C Library. + +# The GNU C Library is free software; you can redistribute it and/or +# modify it under the terms of the GNU Lesser General Public +# License as published by the Free Software Foundation; either +# version 2.1 of the License, or (at your option) any later version. + +# The GNU C Library is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# Lesser General Public License for more details. + +# You should have received a copy of the GNU Lesser General Public +# License along with the GNU C Library; if not, see +# <http://www.gnu.org/licenses/>. + +# errno.texinfo contains lines like: +# @errno{ENOSYS, 123, Function not implemented} + +BEGIN { + print "/* This file generated by errnos.awk. */"; + print ""; + print "/* The Hurd uses Mach error system 0x10, currently only subsystem 0. */"; + print "#ifndef _HURD_ERRNO"; + print "#define _HURD_ERRNO(n)\t((0x10 << 26) | ((n) & 0x3fff))"; + print "#endif"; + print ""; + print "#ifdef _ERRNO_H\n"; + print "enum __error_t_codes\n{"; + print "\t/* The value zero always means success and it is perfectly fine for"; + print "\t code to use 0 explicitly (or implicitly, e.g. via Boolean coercion)."; + print "\t Having an enum entry for zero both makes the debugger print the name"; + print "\t for error_t-typed zero values, and prevents the compiler from"; + print "\t issuing warnings about 'case 0:' in a switch on an error_t-typed"; + print "\t value. */"; + print "\tESUCCESS = 0," + print ""; + maxerrno = 0; + in_mach_errors = ""; + in_math = 0; + edom = erange = ""; + print "#undef EDOM\n#undef ERANGE"; + lno = 0; + } + +/^@errno\{/ \ + { + etext = ""; + for (i = 3; i <= NF; ++i) + etext = etext " " $i; + etext = substr(etext, 1, length(etext)-1) + + e = substr($1, 8, length($1)-8) + if (e == "EWOULDBLOCK") + { + lines[lno++]="#define EWOULDBLOCK EAGAIN /* Operation would block */"; + next; + } + + errno = substr($2, 1, length($2)-1) + 0 + if (errno == 0) + next; + if (errno > maxerrno) maxerrno = errno; + x = sprintf ("%-40s/*%s */", sprintf ("%-24s%s", "#define\t" e, + "_HURD_ERRNO (" errno ")"), + etext); + if (e == "EDOM") + edom = x; + else if (e == "ERANGE") + erange = x; + comma[lno] = 1; + lines[lno++] = sprintf("\t%-16s= _HURD_ERRNO (%d)", e, errno); + lines[lno++] = x; + next; + } + +NF == 3 && $1 == "#define" && $2 == "MACH_SEND_IN_PROGRESS" \ + { + in_mach_errors = FILENAME; + lines[lno++] = "\n\t/* Errors from <mach/message.h>. */"; + } +NF == 3 && $1 == "#define" && $2 == "KERN_SUCCESS" \ + { + in_mach_errors = FILENAME; + lines[lno++] = "\n\t/* Errors from <mach/kern_return.h>. */"; + next; + } + +in_mach_errors != "" && $2 == "MACH_IPC_COMPAT" \ + { + in_mach_errors = ""; + } + +in_mach_errors == FILENAME && NF == 3 && $1 == "#define" \ + { + comma[lno] = 1; + lines[lno++] = sprintf("\t%-32s= %s", "E" $2, $3); + } + +$1 == "#define" && $2 == "_MACH_MIG_ERRORS_H_" \ + { + in_mig_errors = 1; + lines[lno++] = "\n\t/* Errors from <mach/mig_errors.h>. */"; + next; + } +in_mig_errors && $1 == "#endif" && $3 == "_MACH_MIG_ERRORS_H_" \ + { + in_mig_errors = 0; + } + +(in_mig_errors && $1 == "#define" && $3 <= -300) || \ +(in_device_errors && $1 == "#define" && /D_/ && NF > 3) \ + { + comment = ""; + for (i = 4; i <= NF; ++i) + comment = comment " " $i; + comma[lno] = 1; + lines[lno++] = sprintf("%-32s", sprintf ("\t%-24s= %s", "E" $2, $3)) comment; + } + +$1 == "#define" && $2 == "D_SUCCESS" \ + { + in_device_errors = 1; + lines[lno++] = "\n\t/* Errors from <device/device_types.h>. */"; + next; + } +in_device_errors && $1 == "#endif" \ + { + in_device_errors = 0; + } + + +END \ + { + for (i = 0; i < lno - 1; ++i) + printf "%s%s\n", lines[i], (comma[i] ? "," : ""); + print lines[i]; + print ""; + print "};"; + print ""; + printf "#define\t_HURD_ERRNOS\t%d\n", maxerrno+1; + print ""; + print "\ +/* User-visible type of error codes. It is ok to use `int' or\n\ + `kern_return_t' for these, but with `error_t' the debugger prints\n\ + symbolic values. */"; + print "#ifdef __USE_GNU"; + print "typedef enum __error_t_codes error_t;" + print "#define __error_t_defined\t1" + print "#endif"; + print ""; + print "\ +/* Return the current thread's location for `errno'.\n\ + The syntax of this function allows redeclarations like `int errno'. */\n\ +extern int *__errno_location (void) __THROW __attribute__ ((__const__));\n\ +\n\ +#define errno (*__errno_location ())\n\ +"; + print "#endif /* <errno.h> included. */"; + print ""; + print "#if !defined (_ERRNO_H) && defined (__need_Emath)"; + print edom; print erange; + print "#endif /* <errno.h> not included and need math error codes. */"; + } |