option.c revision 3f54fd611f536639ec30dd53c48e5ec1897cc7d9
/***********************************************************************
* *
* This software is part of the ast package *
* Copyright (c) 1984-2012 AT&T Intellectual Property *
* and is licensed under the *
* Eclipse Public License, Version 1.0 *
* by AT&T Intellectual Property *
* *
* A copy of the License is available at *
* http://www.eclipse.org/org/documents/epl-v10.html *
* (with md5 checksum b35adb5213ca9657e911e9befb180842) *
* *
* Information and Software Systems Research *
* AT&T Research *
* Florham Park NJ *
* *
* Glenn Fowler <gsf@research.att.com> *
* *
***********************************************************************/
#pragma prototyped
/*
* Glenn Fowler
* AT&T Research
*
* make options support
*
* option name mappings are here
* option flag mappings are in options.h
*/
#include "make.h"
#include "options.h"
#define OPT_OFFSET 10
#define OPT_NON '-'
#define OPT_SEP ';'
static const char usage1[] =
"+"
"[-?%s\n]"
USAGE_LICENSE
"[+NAME?nmake - configure, manage and update file hierarchies]"
"[+DESCRIPTION?\bnmake\b reads input \amakefiles\a and triggers shell"
" actions to build target files that are out of date with prerequisite"
" files. Most information used to build targets is contained in"
" the global \abase rules\a that are augmented by user \amakefiles\a."
" Each operand may be an option, script, or target. An option operand"
" is preceded by \b-\b or \b+\b. A script operand contains at least"
" one of \bspace\b, \btab\b, \bnewline\b, \b:\b, \b=\b, \b\"\b, or"
" \b\\\b and is parsed as a separate, complete makefile. Otherwise"
" the operand is a \atarget\a that is generated according to the"
" \amakefile\a and \aglobal\a rules. \atarget\a operands are made"
" in order from left to right and override the default targets.]"
"[+?Command line options, scripts and targets may appear in any order,"
" with the exception that no option operand may appear after a"
" \b--\b operand.]"
"[+?Options are qualified by the base name of the makefile that defined"
" them. Unqualified options are defined by \bnmake\b itself.]"
;
static Option_t options[] = /* option table */
{
{ "accept", OPT_accept, (char*)&state.accept, 0,
"Accept filesystem timestamps of existing targets." },
{ "alias", OPT_alias, (char*)&state.alias, 0,
"Enable directory aliasing." },
{ "base", OPT_base, (char*)&state.base, 0,
"Compile base or global rules." },
{ "believe", OPT_believe, (char*)&state.believe, 0,
"Believe the state file time of files lower than view level"
" \alevel-1\a. The file system time will be checked for files with"
" no state or files in views equal to or higher than \alevel\a."
" \alevel=0\a causes the file system time to be checked for"
" files on all view levels. The top view is level 0.", "level:=0" },
{ "compatibility",OPT_compatibility,(char*)&state.compatibility,0,
"Disable compatibility messages." },
{ "compile", OPT_compile, (char*)&state.compileonly, 0,
"Compile the input makefile and exit." },
{ "corrupt",OPT_corrupt, (char*)&state.corrupt, 0,
"\aaction\a determines the action to take for corrupt or invalid"
" top view state files. The top view default is \berror\b and the"
" lower view default is \baccept\b. \aaction\a may be one of:",
"[action:!accept]"
"{"
" [+accept?print a warning and set \b--accept\b]"
" [+error?print a diagnostic and exit]"
" [+ignore?print a warning and set \b--noreadstate\b]"
"}" },
{ "cross", OPT_cross, (char*)&state.cross, 0,
"Don't run generated executables." },
{ "debug", OPT_debug, 0, 0,
"Set the debug trace level to \alevel\a. Higher levels produce"
" more output.", "level" },
{ "errorid", OPT_errorid, (char*)&state.errorid, 0,
"Add \aid\a to the error message command identifier.", "id:=make" },
{ "exec", OPT_exec, (char*)&state.exec, 0,
"Enable shell action execution. \b--noexec\b"
" disables all but \b.ALWAYS\b shell actions and also disables"
" make object and state file generation/updates." },
{ "expandview", OPT_expandview, (char*)&state.expandview, 0,
"Expand \a3d\a filesystem paths." },
{ "explain", OPT_explain, (char*)&state.explain, 0,
"Explain each action." },
{ "file", OPT_file, (char*)&internal.makefiles, 0,
"Read the makefile \afile\a. If \b--file\b is not specified then"
" the makefile names specified by \b$(MAKEFILES)\b are attempted in"
" order from left to right. The file \b-\b is equivalent"
" to \b/dev/null\b.", "file" },
{ "force", OPT_force, (char*)&state.force, 0,
"Force all targets to be out of date." },
{ "global", OPT_global, (char*)&internal.globalfiles, 0,
"Read the global makefile \afile\a. The \b--file\b search is not"
" affected.", "file" },
{ "ignore", OPT_ignore, (char*)&state.ignore, 0,
"Ignore shell action errors." },
{ "ignorelock", OPT_ignorelock, (char*)&state.ignorelock, 0,
"Ignore state file locks." },
{ "include", OPT_include, 0, 0,
"Add \adirectory\a to the makefile search list.", "directory" },
{ "intermediate", OPT_intermediate,(char*)&state.intermediate, 0,
"Force intermediate target generation." },
{ "jobs", OPT_jobs, (char*)&state.jobs, 0,
"Set the shell action concurrency level to \alevel\a."
" Level \b1\b allows dependency checking while an action is"
" executing; level \b0\b stops all activity while an action"
" is executing.", "level:=${" CO_ENV_PROC "::-1}" },
{ "keepgoing", OPT_keepgoing, (char*)&state.keepgoing, 0,
"Continue after error with sibling prerequisites." },
{ "list", OPT_list, (char*)&state.list, 0,
"List the current rules and variables on the standard output in"
" makefile form." },
{ "mam", OPT_mam, (char*)&state.mam.options, 0,
"Write \amake abstract machine\a output to \afile\a if specified or"
" to the standard output otherwise. See \bmam\b(5) for details on"
" the \amake abstract machine\a language. If \aparent\a !=0 then it is"
" the process id of a parent \amam\a process. \adirectory\a is"
" the working directory of the current \amam\a process relative"
" to the root \amam\a process, \b.\b if not specified. \atype\a"
" must be one of:",
"[type[,subtype]][::file[::parent[::directory]]]]]]]"
"{"
"[+dynamic?\amam\a trace of an actual build]"
"[+regress?\amam\a for regression testing; labels, path"
" names and time stamps are canonicalized for easy comparison]"
"[+static?\amam\a representation of the makefile assertions;"
" used for makefile conversion]"
"[+----?0 or more comma separated subtypes ----]"
"[+port?used by the base rules to generate portable"
" makefiles; some paths are parameterized; on by default]"
"[+----?mam options ----]"
"[+[no]]hold?\bhold\b \amam\a output until nested \bnohold\b]"
"}" },
{ "never", OPT_never, (char*)&state.never, 0,
"Don't execute any shell actions. \b--noexec\b executes \b.ALWAYS\b"
" shell actions." },
{ "option", OPT_option, 0, 0,
"Define a new option. The definition is a delimiter separated field"
" list. Any non-alpha-numeric delimiter other than \b-\b may be used."
" \b;\b is used in this description. Makefile \bset option\b"
" definitions must be '...' quoted. Two adjacent delimiters specifies"
" the literal delimiter character and a \b-\b field value specifies an"
" empty field. \achar\a is the single character option name, \aname\a"
" is the long option name, \aset\a is an optional \b.FUNCTION\b that"
" is called when the option value is changed by \bset\b, \avalues\a is"
" an \boptget\b(3) value list, and \aflags\a are a combination of:",
"['char;name;flags;set;description;values']"
"{"
" [+a?multiple values appended]"
" [+b?boolean value]"
" [+i?internal value inverted]"
" [+n?numeric value]"
" [+o?\a-char\a means \b--no\b\aname\a]"
" [+p?.mo probe prerequisite]"
" [+s?string value]"
" [+v?optional option argument]"
" [+x?not expanded in \b$(-)\b]"
"}" },
{ "override", OPT_override, (char*)&state.override, 0,
"Implicit rules or metarules override explicit rules." },
{ "questionable", OPT_questionable,(char*)&state.questionable, 0,
"Enable questionable features defined by \amask\a. Questionable"
" features are artifacts of previous implementations (\bnmake\b has"
" been around since 1984-11-01) that will eventually be dropped."
" The questionable \amask\a registry is in the \bmain.c\b \bnmake\b"
" source file.", "mask" },
{ "readonly", OPT_readonly, (char*)&state.readonly, 0,
"Current assignments and assertions will be marked \breadonly\b." },
{ "readstate", OPT_readstate, (char*)&state.readstate, 0,
"Ignore state files lower than view level \alevel\a. \alevel=0\a"
" ignores state files on all view levels. The top view is level 0.",
"level:=0" },
{ "regress", OPT_regress, (char*)&state.regress, 0,
"Massage output for regression testing. \aaction\a may be one of:",
"[action:!message]"
"{"
" [+message?alter messages only]"
" [+sync?sync 1-second clocks if necessary and alter messages]"
"}" },
{ "reread", OPT_reread, (char*)&state.reread, 0,
"Ignore any previously generated \b.mo\b files and re-read all"
" input makefiles." },
{ "ruledump", OPT_ruledump, (char*)&state.ruledump, 0,
"Dump rule information in tabular form on the standard"
" error when \bnmake\b exits." },
{ "scan", OPT_scan, (char*)&state.scan, 0,
"Scan for and/or check implicit file prerequisites. On by default." },
{ "serialize", OPT_serialize, (char*)&state.serialize, 0,
"Serialize concurrent output by caching job stdout and stderr"
" output until job completion." },
{ "silent", OPT_silent, (char*)&state.silent, 0,
"Do not trace shell actions as they are executed." },
{ "strictview", OPT_strictview, (char*)&state.strictview, 0,
"Set \bVPATH\b \b.SOURCE\b rule interpretation to follow strict"
" \a3d\a filesystem semantics, where directories in the top views"
" take precedence. On by default when running in \a2d\a with"
" \bVPATH\b defined, off by default otherwise." },
{ "target-context",OPT_targetcontext,(char*)&state.targetcontext, 0,
"Expand and execute shell actions in the target directory context."
" This allows a single makefile to control a directory tree while"
" generating target files at the source file directory level. By"
" default target files are generated in the current directory." },
{ "target-prefix", OPT_targetprefix,(char*)&state.targetprefix, 0,
"Allow metarules to match \aseparator\a in the target to \b/\b"
" in the source. Used to disambiguate source file base name clashes"
" when target files are generated in the current directory."
" \aseparator\a must not contain metarule or shell pattern characters.",
"separator" },
{ "test", OPT_test, (char*)&state.test, 0,
"Enable test code defined by \amask\a. Test code is implementation"
" specific. The test \amask\a registry is in the \bmain.c\b \bnmake\b"
" source file.", "mask" },
{ "tolerance", OPT_tolerance, (char*)&state.tolerance, 0,
"Set the time comparison tolerance to \aseconds\a. Times within"
" the tolerance range compare equal. Useful on systems that can't"
" quite get the file system and local clocks in sync. A tolerance"
" of more that 5 seconds soon becomes intolerable.", "seconds" },
{ "touch", OPT_touch, (char*)&state.touch, 0,
"Touch the time stamps of out of date targets rather than execute"
" the shell action." },
{ "vardump", OPT_vardump, (char*)&state.vardump, 0,
"Dump variable information in tabular form on the standard"
" error when \bnmake\b exits." },
{ "warn", OPT_warn, (char*)&state.warn, 0,
"Enable verbose warning messages." },
{ "writeobject", OPT_writeobject,(char*)&state.writeobject, 0,
"Generate a \b.mo\b make object file in \afile\a that can be read"
" instead of the input makefiles on the next \bnmake\b invocation."
" On by default. \b--nowriteobject\b prevents the generation."
" The default name is used if \afile\a is omitted or \b-\b."
" If \afile\a is a directory then the default is placed in that"
" directory.",
"file:=$(MAKEFILE::B::S=.mo)" },
{ "writestate", OPT_writestate, (char*)&state.writestate, 0,
"Generate a \b.ms\b make state file in \afile\a when \bnmake\b exits."
"The state contains the time stamps of all prerequisites and targets"
" that have been accessed since the state file was first generated."
" On by default. \b--nowritestate\b prevents the generation."
" The default name is used if \afile\a is omitted or \b-\b."
" If \afile\a is a directory then the default is placed in that"
" directory.",
"file:=$(MAKEFILE::B::S=.ms)" },
{ "byname", OPT_byname, 0, 0,
"(obsolete) Set options by name.", "name[=value]]" },
{ "define", OPT_define, 0, 0,
"(obsolete) Pass macro definition to the makefile preprocessor.",
"name[=value]]" },
{ "preprocess", OPT_preprocess, 0, 0,
"(obsolete) Preprocess all makefiles." },
{ "undef", OPT_undef, 0, 0,
"(obsolete) Pass macro deletion to the makefile preprocessor.",
"name" },
};
static const char usage2[] =
"\n"
"[ script ... ] [ target ... ]\n"
"\n"
"[+DIAGNOSTICS?Diagnostic messages are printed on the standard error and are"
" classified by levels. The level determines if the diagnostic"
" is printed, if it causes \bnmake\b to exit, and if it affects"
" the \bnmake\b exit status. The levels are:]{"
" [+<0?Debug message, enabled when the absolute value of"
" \alevel\a is greater than or equal to the"
" \b--debug\b level. Debug diagnostics are prefixed"
" by \bdebug\b-\alevel\a\b:\b.]"
" [+1?Warning message, disabled by \b--silent\b. Warning"
" diagnostics are prefixed by \bwarning\a\b:\b]"
" [+2?Non-fatal error message. Processing continues after"
" the diagnostic, but the eventual \bnmake\b exit"
" status will be non-zero.]"
" [+>2?Fatal error message. \bnmake\b exits after the"
" diagnostic (and internal cleanup) with exit"
" status \alevel\a-2.]"
"}"
"[+SEE ALSO?\b3d\b(1), \bar\b(1), \bcc\b(1), \bcoshell\b(1), \bcpp\b(1),"
" \bprobe\b(1), \bsh\b(1)]"
;
struct Oplist_s; typedef struct Oplist_s Oplist_t;
struct Oplist_s /* linked option list */
{
char* option; /* option value for set() */
Oplist_t* next; /* next in list */
};
typedef struct Optstate_s /* option state */
{
Oplist_t* hidden; /* options hidden by cmd line */
Oplist_t* lasthidden; /* tail of hidden */
Oplist_t* delayed; /* delayed unknown options */
Oplist_t* lastdelayed; /* tail of delayed */
Option_t* head; /* head of external option list */
Option_t* tail; /* tail of external option list */
Hash_table_t* table;
Sfio_t* usage; /* generated optget() usage */
int usageindex; /* next user index */
} Optstate_t;
static Optstate_t opt;
static Option_t*
getoption(const char* name)
{
register Option_t* op;
register int c;
if (!(op = (Option_t*)hashget(opt.table, name)) && (strchr(name, '-') || strchr(name, '_')))
{
while (c = *name++)
if (c != '-' && c != '_')
sfputc(internal.tmp, c);
op = (Option_t*)hashget(opt.table, sfstruse(internal.tmp));
}
return op;
}
static void
putoption(register Option_t* op, int index)
{
register char* s;
register int c;
char buf[16];
hashput(opt.table, op->name, (char*)op);
if (strchr(op->name, '-') || strchr(op->name, '_'))
{
s = op->name;
while (c = *s++)
if (c != '-' && c != '_')
sfputc(internal.tmp, c);
hashput(opt.table, strdup(sfstruse(internal.tmp)), (char*)op);
}
if (op->flags & Of)
sfsprintf(buf, sizeof(buf), "+%d", OPT(op->flags));
else
{
buf[0] = '-';
buf[1] = OPT(op->flags);
buf[2] = 0;
}
hashput(opt.table, strdup(buf), (char*)op);
if (index >= elementsof(options))
{
sfsprintf(buf, sizeof(buf), "-%d", index);
hashput(opt.table, strdup(buf), (char*)op);
}
}
/*
* initialize the option hash table
*/
void
optinit(void)
{
register int i;
opt.table = hashalloc(NiL, HASH_name, "options", 0);
for (i = 0; i < elementsof(options); i++)
{
options[i].flags |= Om;
switch (OPT(options[i].flags))
{
case OPT(OPT_debug):
options[i].value = (char*)&error_info.trace;
break;
}
putoption(&options[i], i);
if (opt.tail)
opt.tail->next = &options[i];
else
opt.head = &options[i];
opt.tail = &options[i];
}
}
/*
* return option table entry given OPT_[a-z]+ flag
* type==0 panics if not in table
*/
Option_t*
optflag(register int flag)
{
register Option_t* op;
char buf[8];
if (flag & Of)
sfsprintf(buf, sizeof(buf), "+%d", OPT(flag));
else
{
buf[0] = '-';
buf[1] = OPT(flag);
buf[2] = 0;
}
if (!(op = getoption(buf)) && (flag & ~((1<<8)-1)))
error(ERROR_PANIC, "%s: unknown option flag", buf);
return op;
}
/*
* call op->set with new value
*/
static void
setcall(register Option_t* op, int readonly)
{
Rule_t* r;
char* oset;
int oreadonly;
char buf[16];
if (op->set && (r = getrule(op->set)))
{
oset = op->set;
op->set = 0;
oreadonly = state.readonly;
state.readonly = readonly;
switch (op->flags & (Ob|On|Os))
{
case Ob:
call(r, *((unsigned char*)op->value) ? "1" : null);
break;
case On:
sfsprintf(buf, sizeof(buf), "%d", *((int*)op->value));
call(r, buf);
break;
case Os:
call(r, *((char**)op->value));
break;
}
state.readonly = oreadonly;
op->set = oset;
}
}
/*
* copy a declare() string entry s to sp
*/
static void
declarestr(register Sfio_t* sp, register const char* s)
{
register int c;
if (s && *s)
while (c = *s++)
{
if (c == OPT_SEP)
sfputc(sp, c);
sfputc(sp, c);
}
else
sfputc(sp, OPT_NON);
sfputc(sp, OPT_SEP);
}
/*
* generate external option declaration
*/
static void
declare(Sfio_t* sp, register Option_t* op)
{
if (!(op->flags & Of))
sfputc(internal.tmp, OPT(op->flags));
sfputc(internal.tmp, OPT_SEP);
declarestr(internal.tmp, op->name);
if (op->flags & Oa)
sfputc(internal.tmp, 'a');
if (op->flags & Ob)
sfputc(internal.tmp, 'b');
if (op->flags & On)
sfputc(internal.tmp, 'n');
if (op->flags & Oo)
sfputc(internal.tmp, 'o');
if (op->flags & Op)
sfputc(internal.tmp, 'p');
if (op->flags & Os)
sfputc(internal.tmp, 's');
if (op->flags & Ov)
sfputc(internal.tmp, 'v');
if (op->flags & Ox)
sfputc(internal.tmp, 'x');
sfputc(internal.tmp, OPT_SEP);
declarestr(internal.tmp, op->set);
declarestr(internal.tmp, op->description);
declarestr(internal.tmp, op->arg);
shquote(sp, fmtesc(sfstruse(internal.tmp)));
}
/*
* generate optget() usage for op
*/
static void
genusage(register Option_t* op, int index, int last)
{
long pos;
if (op)
{
sfputc(opt.usage, '[');
if (!(op->flags & Of))
{
sfputc(opt.usage, OPT(op->flags));
if (op->flags & Oo)
sfputc(opt.usage, '!');
sfputc(opt.usage, '=');
}
sfprintf(opt.usage, "%d:%s?%s]", index + OPT_OFFSET, op->name, op->description);
if (op->arg)
{
if (op->flags & On)
sfputc(opt.usage, '#');
else
sfputc(opt.usage, ':');
if (op->flags & Ov)
sfputc(opt.usage, '?');
if (*op->arg != '[')
sfputc(opt.usage, '[');
sfputr(opt.usage, op->arg, -1);
if (*op->arg != '[')
sfputc(opt.usage, ']');
}
sfputc(opt.usage, '\n');
}
pos = sfstrtell(opt.usage);
if (last)
sfprintf(opt.usage, usage2, version);
else
sfputc(opt.usage, 0);
sfstrseek(opt.usage, pos, SEEK_SET);
}
/*
* mam output discipline to parameterize local paths
*/
static ssize_t
mamwrite(Sfio_t* fp, const void* buf, size_t n, Sfdisc_t* dp)
{
char* s;
size_t z;
static char* tmp;
static int siz;
z = n;
if (n > 1 && ((char*)buf)[n-1] == '\n')
{
if (n >= siz)
{
siz = roundof(n + 1, 1024);
tmp = newof(tmp, char, siz, 0);
}
memcpy(tmp, buf, n);
tmp[n-1] = 0;
if (s = call(makerule(external.mamaction), tmp))
{
z = strlen(s);
if (z >= siz)
{
siz = roundof(z + 1, 1024);
tmp = newof(tmp, char, siz, 0);
}
memcpy(tmp, s, z);
tmp[z++] = '\n';
buf = (const char*)tmp;
}
}
return sfwr(fp, buf, z, dp) == z ? n : -1;
}
/*
* make sure the current time is > the start time
* to differentiate strtime() "recent" vs. "current"
* if the clock or filesystem doesn't support subsecond
* granularity then we sleep until the next integral
* second ticks off
*
* the filesystem checks assume that file time stamp
* subseconds==0 rarely happens by chance -- the penalty
* for a wrong guess is slightly slower but still correct
* regression tests
*
* this also assumes that regression tests run faster than
* the disk inode flush frequency on systems where the
* cache time resolution is higher than the disk
*/
static void
regressinit(const char* type)
{
Stat_t st;
Time_t t;
int i;
error_info.version = 0;
if (*type == 's')
{
t = CURTIME;
if (i = tmxnsec(t) && !stat(".", &st) && !tmxnsec(tmxgetatime(&st)) && !tmxnsec(tmxgetmtime(&st)))
state.start = tmxsns(tmxsec(t)+1, 0);
while (state.start >= (t = CURTIME))
tmsleep(0L, 100000000L);
if (!i)
state.start = t;
}
}
/*
* return option name and details
*/
static char*
showop(register Option_t* op)
{
sfprintf(internal.tmp, "%s,", op->name);
sfprintf(internal.tmp, (op->flags & Of) ? "%03o," : "'%c',", op->flags & ((1<<8) - 1));
if (op->flags & Oa)
sfprintf(internal.tmp, "|a");
if (op->flags & Ob)
sfprintf(internal.tmp, "|b");
if (op->flags & Of)
sfprintf(internal.tmp, "|f");
if (op->flags & Oi)
sfprintf(internal.tmp, "|i");
if (op->flags & On)
sfprintf(internal.tmp, "|n");
if (op->flags & Oo)
sfprintf(internal.tmp, "|o");
if (op->flags & Op)
sfprintf(internal.tmp, "|p");
if (op->flags & Os)
sfprintf(internal.tmp, "|s");
if (op->flags & Ov)
sfprintf(internal.tmp, "|v");
if (op->flags & Ox)
sfprintf(internal.tmp, "|x");
if (op->flags & OPT_COMPILE)
sfprintf(internal.tmp, "|COMPILE");
if (op->flags & OPT_DECLARE)
sfprintf(internal.tmp, "|DECLARE");
if (op->flags & OPT_DEFAULT)
sfprintf(internal.tmp, "|DEFAULT");
if (op->flags & OPT_EXTERNAL)
sfprintf(internal.tmp, "|EXTERNAL");
if (op->flags & OPT_READONLY)
sfprintf(internal.tmp, "|READONLY");
if (op->flags & OPT_SET)
sfprintf(internal.tmp, "|SET");
sfputc(internal.tmp, '|');
return sfstruse(internal.tmp);
}
/*
* return next option definition field
*/
static char*
field(char** p, int sep, int app, int lenient)
{
register char* s;
register char* t;
char* v;
register int c;
if (!(c = *(s = *p)) || c == app)
return 0;
if (c == sep)
{
*p = s + 1;
return 0;
}
v = t = s;
for (;;)
{
if (!(c = *t++ = *s++))
{
s--;
t--;
break;
}
else if (c == sep)
{
if (lenient || !*s)
{
t--;
s--;
break;
}
if (*s == OPT_NON && (!*(s + 1) || *(s + 1) == sep))
{
t--;
s++;
break;
}
if (*s != c)
{
t--;
s--;
break;
}
s++;
}
}
if (*s)
s++;
*p = s;
if (*t)
*t = 0;
if (!*v || lenient && *v == OPT_NON && !*(v + 1))
return 0;
return v;
}
/*
* set an option given its pointer
*/
static void
setop(register Option_t* op, register int n, char* s, int type)
{
char* t;
Rule_t* r;
int readonly;
readonly = state.readonly;
if (OPT(op->flags) != OPT(OPT_option))
{
if (type == ':' && (op->flags & OPT_SET))
return;
if (readonly)
op->flags |= OPT_READONLY;
else if (!state.user && (op->flags & OPT_READONLY))
{
Oplist_t* x;
/*
* save for listops(*,'@')
*/
sfprintf(internal.tmp, "%s", op->name);
if (type == ':' && !(op->flags & OPT_SET))
sfputc(internal.tmp, ':');
if (!s)
sfprintf(internal.tmp, "=%d", n);
else if (!strchr(s, ' ') && !strchr(s, '\t'))
sfprintf(internal.tmp, "=%s", s);
else if (!strchr(s, '\''))
sfprintf(internal.tmp, "='%s'", s);
else
sfprintf(internal.tmp, "=\"%s\"", s);
n = sfstrtell(internal.tmp) + 1;
s = sfstruse(internal.tmp);
x = newof(0, Oplist_t, 1, n);
x->option = strcpy((char*)(x + 1), s);
if (opt.lasthidden)
opt.lasthidden = opt.lasthidden->next = x;
else
opt.hidden = opt.lasthidden = x;
return;
}
if (error_info.trace <= -3)
error(-3, "option(%s,%d,\"%s\")", showop(op), n, s ? s : null);
}
if (type != ':')
{
op->flags |= OPT_SET;
op->flags &= ~OPT_DEFAULT;
}
else if (!(op->flags & OPT_SET))
{
op->flags |= OPT_DEFAULT;
if (!state.loading)
op->flags |= OPT_COMPILE;
}
if (state.reading)
op->flags |= OPT_COMPILE;
if (op->flags & Oi)
{
if (op->flags & On)
n = -n;
else
n = !n;
}
else if (op->flags & Ob)
n = n != 0;
else if ((op->flags & (Os|Ov)) == Os && n && !s)
error(3, "-%c: option argument expected", OPT(op->flags));
if (!n)
s = 0;
switch (OPT(op->flags))
{
case OPT(OPT_believe):
if (state.compile < COMPILED)
state.believe = n;
else
error(2, "%s: option must be set before %s", op->name, external.makeinit);
return;
case OPT(OPT_byname):
if (s)
set(s, 1, NiL);
return;
case OPT(OPT_corrupt):
if (!s)
s = "-";
if ((*s == *(state.corrupt = "accept") || *s == '-') && (!*(s + 1) || !strcmp(s, state.corrupt)))
;
else if (*s == *(state.corrupt = "error") && (!*(s + 1) || !strcmp(s, state.corrupt)))
state.corrupt = 0;
else if (*s == *(state.corrupt = "ignore") && (!*(s + 1) || !strcmp(s, state.corrupt)))
;
else
{
state.corrupt = 0;
error(2, "%s: invalid corrupt action", s);
}
return;
case OPT(OPT_global):
if (!s)
{
if (n)
{
state.pushed = 1;
state.push_global = state.global;
state.global = 1;
state.push_user = state.user;
state.user = 0;
}
else if (state.pushed)
{
state.pushed = 0;
state.global = state.push_global;
state.user = state.push_user;
}
return;
}
break;
case OPT(OPT_include):
addprereq(catrule(internal.source->name, external.source, NiL, 1), makerule(s), PREREQ_APPEND);
if (!(op->flags & OPT_READONLY))
break;
/*FALLTHROUGH*/
case OPT(OPT_define):
case OPT(OPT_undef):
if (s)
{
sfprintf(internal.tmp, "-%c%s", OPT(op->flags), s);
if (!(r = getrule(sfstruse(internal.tmp))))
r = makerule(NiL);
addprereq(internal.preprocess, r, PREREQ_APPEND);
}
return;
case OPT(OPT_preprocess):
if (!state.preprocess)
{
state.preprocess = 1;
if (!state.compatibility)
error(1, "makefile preprocessing is obsolete -- use make statements");
}
return;
case OPT(OPT_errorid):
if (s && *s)
{
if (state.errorid)
sfprintf(internal.tmp, "%s/", state.errorid);
sfprintf(internal.tmp, "%s", s);
state.errorid = strdup(sfstruse(internal.tmp));
sfprintf(internal.tmp, "%s [%s]", idname, state.errorid);
error_info.id = strdup(sfstruse(internal.tmp));
}
else
{
op->flags &= ~OPT_SET;
error_info.id = idname;
}
return;
case OPT(OPT_jobs):
if (n >= MAXJOBS)
n = MAXJOBS - 1;
if (n < 1)
n = 0;
state.jobs = n;
return;
case OPT(OPT_mam):
if (t = s)
{
if (t[0] == 'n' && t[1] == 'o')
t += 2;
if (streq(t, "hold"))
{
if (t == s)
state.mam.hold++;
else
state.mam.hold--;
return;
}
}
if (state.mam.label != null)
{
if (state.mam.label)
free(state.mam.label);
state.mam.label = null;
}
if (state.mam.options)
{
free(state.mam.options);
state.mam.options = 0;
}
if (state.mam.root)
{
free(state.mam.root);
state.mam.root = 0;
}
if (state.mam.out)
{
if (state.mam.out != sfstdout && state.mam.out != sfstderr)
sfclose(state.mam.out);
state.mam.out = 0;
}
state.mam.dontcare = state.mam.dynamic = state.mam.regress = state.mam.statix = state.mam.parent = 0;
state.mam.port = 1;
if (s)
{
char* o;
char* u;
Sfio_t* tmp;
tmp = sfstropen();
sfputr(tmp, s, 0);
s = sfstruse(tmp);
if (t = strchr(s, ':'))
*t++ = 0;
if (o = strchr(s, ','))
*o++ = 0;
if (*s == *(state.mam.type = "dynamic") && (!*(s + 1) || !strcmp(s, state.mam.type)))
state.mam.dynamic = 1;
else if (*s == *(state.mam.type = "regress") && (!*(s + 1) || !strcmp(s, state.mam.type)))
{
state.regress = "sync";
state.mam.regress = 1;
state.silent = 1;
if (!table.regress)
table.regress = hashalloc(table.rule, HASH_name, "regress-paths", 0);
regressinit(state.regress);
}
else if (*s == *(state.mam.type = "static") && (!*(s + 1) || !strcmp(s, state.mam.type)))
state.mam.statix = 1;
else
error(3, "%s: invalid mam type: {dynamic,regress,static} expected", s);
while (s = o)
{
if (o = strchr(s, ','))
*o++ = 0;
if (*s == 'n' && *(s + 1) == 'o')
{
s += 2;
n = 0;
}
else
n = 1;
if (*s == *(u = "dontcare") && (!*(s + 1) || !strcmp(s, u)))
state.mam.dontcare = n;
else if (*s == *(u = "port") && (!*(s + 1) || !strcmp(s, u)))
state.mam.port = n;
else
error(3, "%s: invalid mam option: [no]{dontcare,port} expected", s);
}
if (t)
{
s = t;
if (t = strchr(s, ':'))
{
*t++ = 0;
if (isdigit(*t))
{
while (isdigit(*t))
state.mam.parent = state.mam.parent * 10 + *t++ - '0';
if (!state.mam.regress)
{
sfprintf(internal.tmp, "%05d ", state.pid);
state.mam.label = strdup(sfstruse(internal.tmp));
}
}
if (*t)
{
if (*t != ':')
error(3, "%s: mam label expected", t);
t++;
}
if (!*t)
t = 0;
}
}
else s = null;
if (!*s || streq(s, "-") || streq(s, "/dev/fd/1") || streq(s, "/dev/stdout"))
{
s = "/dev/stdout";
state.mam.out = sfstdout;
}
else if (streq(s, "/dev/fd/2") || streq(s, "/dev/stderr"))
state.mam.out = sfstderr;
else if (!(state.mam.out = sfopen(NiL, s, state.mam.parent ? "ae" : "we")))
error(ERROR_SYSTEM|3, "%s: cannot write mam output file", s);
sfset(state.mam.out, SF_LINE, 1);
state.mam.disc.writef = mamwrite;
if (sfdisc(state.mam.out, &state.mam.disc) != &state.mam.disc)
error(3, "%s: cannot push mam output discipline", s);
sfprintf(internal.tmp, "%s", state.mam.type);
if (state.mam.dontcare)
sfprintf(internal.tmp, ",dontcare");
sfprintf(internal.tmp, ",%sport", state.mam.port ? null : "no");
sfprintf(internal.tmp, ":");
if (*s != '/')
sfprintf(internal.tmp, "%s/", internal.pwd);
sfprintf(internal.tmp, "%s:%d", s, state.pid);
if (t)
{
sfprintf(internal.nam, "$(\"%s\":P=A)", t);
expand(tmp, sfstruse(internal.nam));
state.mam.root = strdup(sfstruse(tmp));
state.mam.rootlen = strlen(state.mam.root);
sfprintf(internal.tmp, ":%s", state.mam.root);
}
state.mam.options = strdup(sfstruse(internal.tmp));
sfstrclose(tmp);
}
return;
case OPT(OPT_option):
s = strdup(s);
while (*s)
{
char* name;
char* func;
char* desc;
char* args;
Option_t* nop;
int app;
int sep;
char buf[16];
sep = *s;
if (isalpha(sep))
{
n = sep|Ob;
sep = *++s;
}
else
{
n = '?'|Of|Ob;
if (sep == OPT_NON)
sep = *++s;
}
app = (sep == ':') ? ';' : ':';
s++;
if (!(name = field(&s, sep, app, 1)))
{
if (n & Of)
error(2, "option flag and name omitted");
else
error(2, "-%c: option name omitted", OPT(n));
break;
}
if (t = field(&s, sep, app, 1))
{
for (;;)
{
switch (*t++)
{
case 0:
break;
case 'a':
n |= Oa;
continue;
case 'b':
n &= ~(On|Os);
n |= Ob;
continue;
case 'n':
n &= ~(Ob|Os);
n |= On;
continue;
case 'o':
n |= Oo;
continue;
case 'p':
n |= Op;
continue;
case 's':
n &= ~(Ob|On);
n |= Os;
continue;
case 'v':
n |= Ov;
continue;
case 'x':
n |= Ox;
continue;
/* no complaints here for future extensions */
}
break;
}
}
func = field(&s, sep, app, 1);
desc = field(&s, sep, app, 0);
args = field(&s, sep, app, 0);
if (!(n & Of))
{
for (nop = &options[0]; nop < &options[elementsof(options)]; nop++)
if (OPT(nop->flags) == OPT(n))
break;
if (nop < &options[elementsof(options)])
{
error(2, "--%s: -%c conflicts with --%s", s, OPT(n), nop->name);
return;
}
buf[0] = '-';
buf[1] = OPT(n);
buf[2] = 0;
nop = getoption(buf);
}
else
nop = 0;
if (nop)
{
if (n & On)
*((int*)nop->value) = *((unsigned char*)nop->value);
else if (n & Os)
*((char**)nop->value) = 0;
nop->flags = n;
set_insert:
nop->name = name;
nop->set = func;
if ((n & (Os|Oa)) == (Os|Oa) && !op->value)
*((Rule_t**)nop->value) = catrule(".OPTION.", nop->name, ".LIST.", 1);
if (!desc)
desc = "option.";
if (*desc != '(')
{
sfputc(internal.tmp, '(');
if ((t = parsefile()) && *t)
edit(internal.tmp, t, DELETE, KEEP, DELETE);
else
sfputr(internal.tmp, state.base ? "rules" : state.global ? "global" : "user", -1);
sfprintf(internal.tmp, ") %s", desc);
desc = strdup(sfstruse(internal.tmp));
}
nop->description = desc;
if (!args && (nop->flags & (On|Os)))
args = (nop->flags & On) ? "number" : "string";
if (args && (nop->flags & Ob))
{
nop->flags &= ~Ob;
nop->flags |= Os;
}
nop->arg = args;
putoption(nop, opt.usageindex);
genusage(nop, opt.usageindex++, 1);
if (nop->set && (nop->flags & OPT_SET))
readonly = 1;
}
else if (!(nop = getoption(name)))
{
nop = newof(0, Option_t, 1, sizeof(char*));
nop->value = (char*)(nop + 1);
nop->flags = n|OPT_EXTERNAL;
if (!state.loading)
nop->flags |= OPT_DECLARE;
if (opt.tail)
opt.tail->next = nop;
else
opt.head = nop;
opt.tail = nop;
goto set_insert;
}
else if (!(nop->flags & OPT_EXTERNAL))
error(1, "--%s is an internal option", nop->name);
else
{
if (nop->flags & Of)
{
if ((n & (Ob|On|Os)) != (nop->flags & (Ob|On|Os)))
{
if (n & Os)
*((char**)nop->value) = 0;
else if ((n & On) && (nop->flags & Ob))
*((int*)nop->value) = *((unsigned char*)nop->value);
else if ((n & Ob) && (nop->flags & On))
*((unsigned char*)nop->value) = *((int*)nop->value) != 0;
}
nop->flags = n;
}
else if (OPT(nop->flags) != OPT(n))
error(1, "--%s: option flag -%c conflicts with -%c", nop->name, OPT(n), OPT(nop->flags));
if ((nop->flags & (Ob|On|Os)) != (n & (Ob|On|Os)))
error(1, "--%s: option is %s", nop->name, (nop->flags & Ob) ? "boolean" : (nop->flags & On) ? "numeric" : "string valued");
}
/*
* skip the remaining fields for future extensions
* and consume the append char if specified
*/
while (field(&s, sep, app, 0));
if (*s == app)
s++;
}
optcheck(0);
return;
case OPT(OPT_never):
if (state.never = n)
state.exec = 0;
return;
case OPT(OPT_regress):
if (n)
{
if (!s)
s = "-";
if ((*s == *(state.regress = "message") || *s == '-') && (!*(s + 1) || !strcmp(s, state.regress)))
;
else if (*s == *(state.regress = "sync") && (!*(s + 1) || !strcmp(s, state.regress)))
;
else
{
state.regress = 0;
error(2, "%s: invalid regress action", s);
}
if (state.regress)
regressinit(state.regress);
}
else
state.regress = 0;
return;
case OPT(OPT_reread):
if (state.reread = n)
state.forceread = 1;
return;
case OPT(OPT_silent):
if (state.silent = n)
{
if (!error_info.trace)
error_info.trace = 2;
}
else
if (error_info.trace > 0)
error_info.trace = 0;
return;
case OPT(OPT_targetprefix):
if (!n)
s = 0;
else if (s)
s = strdup(s);
if (state.targetprefix = s)
for (;;)
{
switch (*s++)
{
case 0:
break;
case '%':
case '*':
case '?':
case '&':
case '"':
case '\'':
case '\\':
error(3, "--%s: %s: value must not contain metarule or shell pattern characters", op->name, state.targetprefix);
break;
default:
continue;
}
break;
}
return;
case OPT(OPT_tolerance):
if ((state.tolerance = n) > 60)
error(1, "the time comparison tolerance should probably be less than a minute");
return;
case OPT(OPT_writeobject):
if (!n)
s = 0;
else if (state.makefile)
{
error(1, "%s: object file name cannot change after %s read", op->name, state.makefile);
return;
}
else if (!s)
s = "-";
else
s = strdup(s);
state.writeobject = s;
return;
case OPT(OPT_writestate):
if (!n)
s = 0;
else if (!s)
s = "-";
else
s = strdup(s);
state.writestate = s;
if (state.statefile)
{
free(state.statefile);
state.statefile = 0;
}
return;
}
if (op->value)
{
if (op->flags & Ob)
{
switch (type)
{
case '^':
*((unsigned char*)op->value) ^= n;
break;
default:
*((unsigned char*)op->value) = n != 0;
break;
}
}
else if (op->flags & On)
{
switch (type)
{
case '+':
*((int*)op->value) += n;
break;
case '-':
*((int*)op->value) -= n;
break;
case '|':
*((int*)op->value) |= n;
break;
case '&':
*((int*)op->value) &= n;
break;
case '^':
*((int*)op->value) ^= n;
break;
default:
*((int*)op->value) = n;
break;
}
}
else if (op->flags & Os)
{
if (op->flags & Oa)
{
if (s)
{
/*
* s is a ':' list
*/
for (;;)
{
if (t = strchr(s, ':'))
*t = 0;
addprereq((*(Rule_t**)op->value), makerule(s), PREREQ_APPEND);
if (!t)
break;
*t++ = ':';
s = t;
}
}
else
{
freelist((*(Rule_t**)op->value)->prereqs);
(*(Rule_t**)op->value)->prereqs = 0;
}
}
else
*((char**)op->value) = s ? strdup(s) : 0;
}
}
if (op->set)
setcall(op, readonly);
if ((op->flags & Op) && !state.reading && !state.user)
{
if ((op->flags & Os) && s)
{
sfprintf(internal.tmp, "--%s=%s", op->name, s);
if (!(r = getrule(sfstruse(internal.tmp))))
r = makerule(NiL);
addprereq(internal.preprocess, r, PREREQ_APPEND);
}
else if ((op->flags & (Ob|On)) && n)
{
if (!n)
sfprintf(internal.tmp, "--no%s", op->name);
else if (n != 1)
sfprintf(internal.tmp, "--%s=%d", op->name, n);
else
sfprintf(internal.tmp, "--%s", op->name);
if (!(r = getrule(sfstruse(internal.tmp))))
r = makerule(NiL);
addprereq(internal.preprocess, r, PREREQ_APPEND);
}
}
}
/*
* generate a single option setting in sp given the option pointer
* setting:
* 0 only the value is generated, "" if option not set
* '+' only the value is generated, "" if Os option not set, 0 for Ob|Oi not set
* '-' option name and value suitable for set()
* '?' 1 if OPT_SET, "" otherwise
* '#' table attributes with the current value
* flag!=0 if relative to option flag rather than option name
*/
static void
genop(register Sfio_t* sp, register Option_t* op, int setting, int flag)
{
register long n;
char* v;
List_t* p;
switch (setting)
{
case '?':
if (op->flags & OPT_SET)
sfprintf(sp, "1");
return;
case '#':
sfprintf(sp, "%s=", showop(op));
break;
case 0:
break;
default:
flag &= ~Oi;
break;
}
switch (op->flags & (Ob|On|Os))
{
case Ob:
if (op->value)
n = *((unsigned char*)op->value);
else
n = 0;
if ((op->flags & Oi) ^ (flag & Oi))
n = !n;
if ((flag & Of) && (op->flags & Oo))
n = !n;
switch (setting)
{
case 0:
if (!n)
return;
/*FALLTHROUGH*/
case '+':
case '#':
break;
default:
if (op->flags & OPT_DEFAULT)
sfprintf(sp, "--%s:=", op->name);
else if (n)
{
sfprintf(sp, "--%s", op->name);
return;
}
else
{
sfprintf(sp, "--no%s", op->name);
return;
}
break;
}
sfputc(sp, n ? '1' : '0');
break;
case On:
if (op->value)
n = *((int*)op->value);
else
n = 0;
if (op->flags & Oi)
n = -n;
if (flag & Oi)
n = !n;
switch (setting)
{
case 0:
if (!n)
return;
/*FALLTHROUGH*/
case '+':
case '#':
break;
default:
if (op->flags & OPT_DEFAULT)
sfprintf(sp, "--%s:=", op->name);
else if (n)
sfprintf(sp, "--%s=", op->name);
else
{
sfprintf(sp, "--no%s", op->name);
return;
}
break;
}
sfprintf(sp, (op->flags & Oa) ? "0x%08lx" : "%ld", n);
break;
case Os:
if ((op->flags & Oa) && op->value && !(flag & Oi))
{
p = (*(Rule_t**)op->value)->prereqs;
switch (setting)
{
case 0:
if (!p)
return;
/*FALLTHROUGH*/
case '+':
case '#':
break;
default:
if (op->flags & OPT_DEFAULT)
sfprintf(sp, "--%s:=", op->name);
else if (p)
sfprintf(sp, "--%s=", op->name);
else
{
sfprintf(sp, "--no%s", op->name);
return;
}
break;
}
if (p)
for (;;)
{
shquote(sp, fmtesc(p->rule->name));
if (!(p = p->next))
break;
sfputc(sp, ':');
}
}
else
{
if (op->value && !(flag & Oi))
v = *((char**)op->value);
else
v = 0;
switch (setting)
{
case 0:
case '#':
if (!v)
return;
setting = 0;
break;
case '+':
break;
default:
if (op->flags & OPT_DEFAULT)
sfprintf(sp, "--%s:=", op->name);
else if (v)
sfprintf(sp, "--%s=", op->name);
else
{
sfprintf(sp, "--no%s", op->name);
return;
}
break;
}
if (v)
{
if (setting)
shquote(sp, fmtesc(v));
else
sfputr(sp, v, -1);
}
}
break;
#if DEBUG
default:
error(PANIC, "%s: option has%s%s%s", op->name, (op->flags & Ob) ? " Ob" : null, (op->flags & On) ? " On" : null, (op->flags & Os) ? " Os" : null);
break;
#endif
}
}
/*
* check and set delayed options
* this gives base, global and local makefiles a chance to
* define the options via --option=definition
*/
void
optcheck(int must)
{
Oplist_t* x;
int errors;
if (must)
{
errors = error_info.errors;
while (x = opt.delayed)
{
opt.delayed = x->next;
if (*x->option)
set(x->option, 1, NiL);
free(x);
}
if (error_info.errors != errors)
finish(2);
}
else
for (x = opt.delayed; x; x = x->next)
if (!set(x->option, 0, NiL))
*x->option = 0;
}
/*
* generate option setting list in sp suitable for set()
* setting:
* 0 non-Ox OPT_SET options
* '+' non-Om non-Ox OPT_SET options
* '-' all
* '?' non-Ox OPT_DEFAULT
* '#' table attributes with the current value
* '@' internal object file dump
*/
void
listops(register Sfio_t* sp, int setting)
{
register Option_t* op;
register Oplist_t* x;
int sc;
int sep;
long mask;
long test;
long clear;
sep = 0;
sc = ' ';
clear = 0;
switch (setting)
{
case '-':
mask = 0;
test = 0;
break;
case '+':
setting = '-';
mask = Om|Ox|OPT_SET;
test = Om|OPT_SET;
break;
case '?':
setting = '-';
mask = Ox|OPT_DEFAULT;
test = OPT_DEFAULT;
break;
case '#':
sc = '\n';
mask = 0;
test = 0;
break;
case '@':
setting = '-';
mask = Ox|OPT_COMPILE;
test = OPT_COMPILE;
clear = ~OPT_COMPILE;
for (op = opt.head; op; op = op->next)
if (op->flags & OPT_DECLARE)
{
op->flags &= ~OPT_DECLARE;
if (sep)
sfputc(sp, ':');
else
{
sep = 1;
sfprintf(sp, "--%s=", optflag(OPT_option)->name);
}
declare(sp, op);
}
while (x = opt.hidden)
{
opt.hidden = x->next;
if (sep)
sfputc(sp, sc);
else
sep = 1;
sfputr(sp, x->option, -1);
free(x);
}
break;
default:
setting = '-';
mask = Ox|OPT_SET;
test = OPT_SET;
break;
}
for (op = opt.head; op; op = op->next)
if ((op->flags & mask) == test)
{
if (sep)
sfputc(sp, sc);
else
sep = 1;
genop(sp, op, setting, 0);
if (clear)
op->flags &= clear;
}
}
/*
* generate a single option setting in sp given the option name
* setting passed to genop()
* end of s is returned
*/
void
getop(register Sfio_t* sp, char* name, int setting)
{
register Option_t* op;
int flag;
if ((op = getoption(name)) && !(flag = 0) || name[0] == 'n' && name[1] == 'o' && (op = getoption(&name[2])) && (flag = Oi) || name[0] && !name[1] && (op = optflag(name[0])) && (flag = Of))
genop(sp, op, setting, flag);
}
/*
* set an option by its optget()/optstr() index
*/
static void
optset(int i, char* v, Sfio_t* scope)
{
register char* s;
int n;
Option_t* op;
Oplist_t* x;
char buf[16];
if (i > 0)
{
if (state.readonly && !state.interpreter)
{
if (strchr(v, ' ') || strchr(v, '\t'))
{
while (*v && *v != '=')
sfputc(internal.tmp, *v++);
if (*v)
{
sfputc(internal.tmp, *v++);
if (!strchr(v, '\"'))
sfprintf(internal.tmp, "\"%s\"", v);
else
sfprintf(internal.tmp, "'%s'", v);
}
n = sfstrtell(internal.tmp);
v = sfstruse(internal.tmp);
}
else
n = strlen(v);
x = newof(0, Oplist_t, 1, n + 1);
x->option = strcpy((char*)(x + 1), v);
if (opt.lastdelayed)
opt.lastdelayed = opt.lastdelayed->next = x;
else
opt.delayed = opt.lastdelayed = x;
}
else
error((i == '?' && opt_info.option[0] == '-' && opt_info.option[1] != '?') ? (ERROR_USAGE|(state.interpreter ? 2 : 4)) : 2, "%s", opt_info.arg);
}
else
{
if ((i = -OPT_OFFSET - i) < elementsof(options))
op = &options[i];
else
{
sfsprintf(buf, sizeof(buf), "-%d", i);
op = getoption(buf);
}
n = (op->flags & On) ? (opt_info.arg ? opt_info.num : 0) : (op->flags & Ob) ? (opt_info.num != 0) : (opt_info.num != 0) == !(op->flags & Oi);
if (*opt_info.option == '+')
n = !n;
if ((s = opt_info.arg) && (!*s || !(op->flags & Os)))
s = 0;
if (scope)
genop(scope, op, '-', 0);
setop(op, n, s, opt_info.assignment);
}
}
/*
* set options by name
*/
int
set(char* s, int must, Sfio_t* scope)
{
register int i;
int r;
int oreadonly;
Opt_t info;
r = 0;
info = opt_info;
while (i = optstr(s, sfstrbase(opt.usage)))
{
if (i > 0 && !must)
{
r = -1;
break;
}
s += opt_info.offset;
if (!must)
{
oreadonly = state.readonly;
state.readonly = 1;
}
optset(i, opt_info.argv[1], scope);
if (!must)
state.readonly = oreadonly;
}
opt_info = info;
return r;
}
/*
* set command line options with optget(3)
* options may appear in any position before --
* read command line assignments
* mark the command line scripts and targets
* index of the first command line script or target is returned
*/
int
scanargs(int argc, char** argv, int* argf)
{
register int i;
register char* s;
register int c;
int args;
int done;
char* e;
/*
* generate the optget() usage string from options[]
*/
if (!(opt.usage = sfstropen()))
error(ERROR_SYSTEM|3, "out of space [usage]");
sfprintf(opt.usage, usage1, version);
for (i = 0; i < elementsof(options); i++)
genusage(options + i, i, 0);
genusage(NiL, 0, 1);
opt.usageindex = i;
args = 0;
done = 0;
again:
while (i = optget(argv, sfstrbase(opt.usage)))
optset(i, argv[opt_info.index - (opt_info.offset == 0)], NiL);
if (!done && streq(argv[opt_info.index - 1], "--"))
done = 1;
for (i = opt_info.index; i < argc; i++)
{
s = argv[i];
while (isspace(*s))
s++;
if (!done && (*s == '-' || *s == '+') && *(s + 1))
{
opt_info.index = i;
opt_info.offset = 0;
goto again;
}
if (*s)
{
for (e = s; c = *s; s++)
if (c == ',')
{
s = null;
break;
}
else if (istype(c, C_TERMINAL) && c != '+' && c != '&')
{
while (isspace(*s))
s++;
if (*s == '=' || *(s + 1) == '=')
{
argf[i] |= ARG_ASSIGN;
state.reading = 1;
parse(NiL, e, "command line assignment", NiL);
state.reading = 0;
}
else
{
argf[i] |= ARG_SCRIPT;
if (!args)
args = i;
}
break;
}
if (!*s)
{
argf[i] |= ARG_TARGET;
if (!args)
args = i;
}
}
}
return error_info.errors ? -1 : args ? args : argc;
}
/*
* please reboot your program to finish setup ...
*
* old!=0 execs external.old for backwards compatibility
* otherwise re-exec forcing input files to be read
*/
void
punt(int old)
{
register char* s;
register char** av;
int i;
List_t* p;
Oplist_t* x;
Sfio_t* vec;
if (state.reread > 1)
error(PANIC, "makefile prerequisites cause unbounded make exec recursion");
vec = sfstropen();
if (old)
{
expand(internal.tmp, getval(external.old, VAL_PRIMARY));
putptr(vec, strdup(sfstruse(internal.tmp)));
/*
* this chunk must track external.old options
*/
sfputc(internal.tmp, '-');
/*
* options with same flag and meaning
*/
if (error_info.trace < -3)
sfputc(internal.tmp, 'd');
if (state.ignore)
sfputc(internal.tmp, 'i');
if (state.keepgoing)
sfputc(internal.tmp, 'k');
if (!state.mam.options && !state.exec)
sfputc(internal.tmp, 'n');
if (state.silent)
sfputc(internal.tmp, 's');
if (state.touch)
sfputc(internal.tmp, 't');
/*
* options with different flag but same meaning
*/
if (state.vardump)
sfputc(internal.tmp, 'p');
if (!state.mam.options && state.force)
sfputc(internal.tmp, 'u');
/*
* options with different flag and meaning
* the external.old meaning prevails
*/
if (state.base)
sfputc(internal.tmp, 'b');
if (state.explain)
sfputc(internal.tmp, 'e');
if (state.ruledump)
sfputc(internal.tmp, 'r');
s = sfstruse(internal.tmp);
if (s[1])
putptr(vec, strdup(s));
/*
* mam arguments -- assume oldmake knows mam
*/
if (state.mam.options)
{
sfputc(internal.tmp, '-');
if (state.never)
sfputc(internal.tmp, 'N');
else if (!state.exec)
sfputc(internal.tmp, 'n');
if (state.force)
sfputc(internal.tmp, 'F');
sfputc(internal.tmp, 'M');
sfputr(internal.tmp, state.mam.options, -1);
putptr(vec, strdup(sfstruse(internal.tmp)));
}
/*
* delayed (unknown) options
*/
for (x = opt.delayed; x; x = x->next)
putptr(vec, x->option);
/*
* makefile arguments
*/
if (!(p = internal.makefiles->prereqs))
{
putptr(vec, "-f");
putptr(vec, state.makefile);
}
else for (; p; p = p->next)
{
putptr(vec, "-f");
putptr(vec, p->rule->name);
}
/*
* variable assignment arguments
*/
for (i = 1; i < state.argc; i++)
if (state.argf[i] & (ARG_ASSIGN|ARG_TARGET))
putptr(vec, state.argv[i]);
if (!state.silent)
{
/*
* echo the exec action external.old style
*/
#if !__sun__ && !sun
sfprintf(sfstderr, "\t");
#endif
putptr(vec, 0);
av = (char**)sfstrbase(vec);
while (*av)
sfprintf(sfstderr, "%s ", *av++);
sfprintf(sfstderr, "\n");
}
}
else
{
/*
* copy the original argv adding OPT_reread
* and possibly OPT_preprocess
*/
for (av = state.argv; *av; putptr(vec, *av++));
sfprintf(internal.tmp, "--%s=%d", optflag(OPT_reread)->name, state.reread + 1);
if (state.preprocess)
sfprintf(internal.tmp, "--%s", optflag(OPT_preprocess)->name);
putptr(vec, sfstruse(internal.tmp));
}
putptr(vec, 0);
/*
* tidy up
*/
sfsync(sfstdout);
sfsync(sfstderr);
if (internal.openfile)
close(internal.openfd);
/*
* start fresh
*/
av = (char**)sfstrbase(vec);
execvp(av[0], av);
error(3, "cannot exec %s", av[0]);
}
/*
* return 1 if name is an option
*/
int
isoption(const char* name)
{
return getoption(name) != 0 || name[0] == 'n' && name[1] == 'o' && getoption(&name[2]) != 0;
}