kbuild.c@ 2129

Last change on this file since 2129 was 2124, checked in by bird, 16 years ago
kbuild.c: more warnings.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 94.2 KB

Line
1	/* $Id: kbuild.c 2124 2008-12-25 14:19:59Z bird $ */
2	/** @file
3	* kBuild specific make functionality.
4	*/
5
6	/*
7	* Copyright (c) 2006-2008 knut st. osmundsen <[email protected]>
8	*
9	* This file is part of kBuild.
10	*
11	* kBuild is free software; you can redistribute it and/or modify
12	* it under the terms of the GNU General Public License as published by
13	* the Free Software Foundation; either version 3 of the License, or
14	* (at your option) any later version.
15	*
16	* kBuild is distributed in the hope that it will be useful,
17	* but WITHOUT ANY WARRANTY; without even the implied warranty of
18	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19	* GNU General Public License for more details.
20	*
21	* You should have received a copy of the GNU General Public License
22	* along with kBuild. If not, see <http://www.gnu.org/licenses/>
23	*
24	*/
25
26	/* No GNU coding style here! */
27
28	/*******************************************************************************
29	* Header Files *
30	*******************************************************************************/
31	#include "make.h"
32	#include "filedef.h"
33	#include "variable.h"
34	#include "dep.h"
35	#include "debug.h"
36	#ifdef WINDOWS32
37	# include "pathstuff.h"
38	# include <Windows.h>
39	#endif
40	#if defined(__APPLE__)
41	# include <mach-o/dyld.h>
42	#endif
43
44	#include "kbuild.h"
45
46	#include <assert.h>
47
48
49	/*******************************************************************************
50	* Defined Constants And Macros *
51	*******************************************************************************/
52	/** Helper for passing a string constant to kbuild_get_variable_n. */
53	#define ST(strconst) strconst, sizeof(strconst) - 1
54
55	#if 1
56	# define my_memcpy(dst, src, len) \
57	do { \
58	if (len > 8) \
59	memcpy(dst, src, len); \
60	else \
61	switch (len) \
62	{ \
63	case 8: dst[7] = src[7]; \
64	case 7: dst[6] = src[6]; \
65	case 6: dst[5] = src[5]; \
66	case 5: dst[4] = src[4]; \
67	case 4: dst[3] = src[3]; \
68	case 3: dst[2] = src[2]; \
69	case 2: dst[1] = src[1]; \
70	case 1: dst[0] = src[0]; \
71	case 0: break; \
72	} \
73	} while (0)
74	#elif defined(__GNUC__)
75	# define my_memcpy __builtin_memcpy
76	#elif defined(_MSC_VER)
77	# pragma instrinic(memcpy)
78	# define my_memcpy memcpy
79	#endif
80
81
82	/*******************************************************************************
83	* Global Variables *
84	*******************************************************************************/
85	/** The argv[0] passed to main. */
86	static const char *g_pszExeName;
87	/** The initial working directory. */
88	static char *g_pszInitialCwd;
89
90
91	/**
92	* Initialize kBuild stuff.
93	*
94	* @param argc Number of arguments to main().
95	* @param argv The main() argument vector.
96	*/
97	void init_kbuild(int argc, char **argv)
98	{
99	int rc;
100	PATH_VAR(szTmp);
101
102	/*
103	* Get the initial cwd for use in my_abspath.
104	*/
105	#ifdef WINDOWS32
106	if (getcwd_fs(szTmp, GET_PATH_MAX) != 0)
107	#else
108	if (getcwd(szTmp, GET_PATH_MAX) != 0)
109	#endif
110	g_pszInitialCwd = xstrdup(szTmp);
111	else
112	fatal(NILF, _("getcwd failed"));
113
114	/*
115	* Determin the executable name.
116	*/
117	rc = -1;
118	#if defined(__APPLE__)
119	{
120	const char *pszImageName = _dyld_get_image_name(0);
121	if (pszImageName)
122	{
123	size_t cchImageName = strlen(pszImageName);
124	if (cchImageName < GET_PATH_MAX)
125	{
126	memcpy(szTmp, pszImageName, cchImageName + 1);
127	rc = 0;
128	}
129	}
130	}
131
132	#elif defined(__FreeBSD__)
133	rc = readlink("/proc/curproc/file", szTmp, GET_PATH_MAX - 1);
134	if (rc < 0 \|\| rc == GET_PATH_MAX - 1)
135	rc = -1;
136	else
137	szTmp[rc] = '\0';
138
139	#elif defined(__gnu_linux__) /** @todo find proper define... */
140	rc = readlink("/proc/self/exe", szTmp, GET_PATH_MAX - 1);
141	if (rc < 0 \|\| rc == GET_PATH_MAX - 1)
142	rc = -1;
143	else
144	szTmp[rc] = '\0';
145
146	#elif defined(__OS2__)
147	_execname(szTmp, GET_PATH_MAX);
148	rc = 0;
149
150	#elif defined(__sun__)
151	{
152	char szTmp2[64];
153	snprintf(szTmp2, sizeof(szTmp2), "/proc/%ld/path/a.out", (long)getpid());
154	rc = readlink(szTmp2, szTmp, GET_PATH_MAX - 1);
155	if (rc < 0 \|\| rc == GET_PATH_MAX - 1)
156	rc = -1;
157	else
158	szTmp[rc] = '\0';
159	}
160
161	#elif defined(WINDOWS32)
162	if (GetModuleFileName(GetModuleHandle(NULL), szTmp, GET_PATH_MAX))
163	rc = 0;
164
165	#endif
166
167	#if !defined(__OS2__) && !defined(WINDOWS32)
168	/* fallback, try use the path to locate the binary. */
169	if ( rc < 0
170	&& access(argv[0], X_OK))
171	{
172	size_t cchArgv0 = strlen(argv[0]);
173	const char *pszPath = getenv("PATH");
174	char *pszCopy = xstrdup(pszPath ? pszPath : ".");
175	char *psz = pszCopy;
176	while (*psz)
177	{
178	size_t cch;
179	char *pszEnd = strchr(psz, PATH_SEPARATOR_CHAR);
180	if (!pszEnd)
181	pszEnd = strchr(psz, '\0');
182	cch = pszEnd - psz;
183	if (cch + cchArgv0 + 2 <= GET_PATH_MAX)
184	{
185	memcpy(szTmp, psz, cch);
186	szTmp[cch] = '/';
187	memcpy(&szTmp[cch + 1], argv[0], cchArgv0 + 1);
188	if (!access(szTmp, X_OK))
189	{
190	rc = 0;
191	break;
192	}
193	}
194
195	/* next */
196	psz = pszEnd;
197	while (*psz == PATH_SEPARATOR_CHAR)
198	psz++;
199	}
200	free(pszCopy);
201	}
202	#endif
203
204	if (rc < 0)
205	g_pszExeName = argv[0];
206	else
207	g_pszExeName = xstrdup(szTmp);
208
209	(void)argc;
210	}
211
212
213	/**
214	* Wrapper that ensures correct starting_directory.
215	*/
216	static char my_abspath(const char pszIn, char *pszOut)
217	{
218	char pszSaved, pszRet;
219
220	pszSaved = starting_directory;
221	starting_directory = g_pszInitialCwd;
222	pszRet = abspath(pszIn, pszOut);
223	starting_directory = pszSaved;
224
225	return pszRet;
226	}
227
228
229	/**
230	* Determin the KBUILD_PATH value.
231	*
232	* @returns Pointer to static a buffer containing the value (consider it read-only).
233	*/
234	const char *get_kbuild_path(void)
235	{
236	static const char *s_pszPath = NULL;
237	if (!s_pszPath)
238	{
239	PATH_VAR(szTmpPath);
240	const char *pszEnvVar = getenv("KBUILD_PATH");
241	if ( !pszEnvVar
242	\|\| !my_abspath(pszEnvVar, szTmpPath))
243	{
244	pszEnvVar = getenv("PATH_KBUILD");
245	if ( !pszEnvVar
246	\|\| !my_abspath(pszEnvVar, szTmpPath))
247	{
248	#ifdef KBUILD_PATH
249	return s_pszPath = KBUILD_PATH;
250	#else
251	/* $(abspath $(KBUILD_BIN_PATH)/../..)*/
252	size_t cch = strlen(get_kbuild_bin_path());
253	char *pszTmp2 = alloca(cch + sizeof("/../.."));
254	strcat(strcpy(pszTmp2, get_kbuild_bin_path()), "/../..");
255	if (!my_abspath(pszTmp2, szTmpPath))
256	fatal(NILF, _("failed to determin KBUILD_PATH"));
257	#endif
258	}
259	}
260	s_pszPath = xstrdup(szTmpPath);
261	}
262	return s_pszPath;
263	}
264
265
266	/**
267	* Determin the KBUILD_BIN_PATH value.
268	*
269	* @returns Pointer to static a buffer containing the value (consider it read-only).
270	*/
271	const char *get_kbuild_bin_path(void)
272	{
273	static const char *s_pszPath = NULL;
274	if (!s_pszPath)
275	{
276	PATH_VAR(szTmpPath);
277
278	const char *pszEnvVar = getenv("KBUILD_BIN_PATH");
279	if ( !pszEnvVar
280	\|\| !my_abspath(pszEnvVar, szTmpPath))
281	{
282	pszEnvVar = getenv("PATH_KBUILD_BIN");
283	if ( !pszEnvVar
284	\|\| !my_abspath(pszEnvVar, szTmpPath))
285	{
286	#ifdef KBUILD_PATH
287	return s_pszPath = KBUILD_BIN_PATH;
288	#else
289	/* $(abspath $(dir $(ARGV0)).) */
290	size_t cch = strlen(g_pszExeName);
291	char *pszTmp2 = alloca(cch + sizeof("."));
292	char *pszSep = pszTmp2 + cch - 1;
293	memcpy(pszTmp2, g_pszExeName, cch);
294	# ifdef HAVE_DOS_PATHS
295	while (pszSep >= pszTmp2 && pszSep != '/' && pszSep != '\\' && *pszSep != ':')
296	# else
297	while (pszSep >= pszTmp2 && *pszSep != '/')
298	# endif
299	pszSep--;
300	if (pszSep >= pszTmp2)
301	strcpy(pszSep + 1, ".");
302	else
303	strcpy(pszTmp2, ".");
304
305	if (!my_abspath(pszTmp2, szTmpPath))
306	fatal(NILF, _("failed to determin KBUILD_BIN_PATH (pszTmp2=%s szTmpPath=%s)"), pszTmp2, szTmpPath);
307	#endif /* !KBUILD_PATH */
308	}
309	}
310	s_pszPath = xstrdup(szTmpPath);
311	}
312	return s_pszPath;
313	}
314
315
316	/**
317	* Determin the location of default kBuild shell.
318	*
319	* @returns Pointer to static a buffer containing the location (consider it read-only).
320	*/
321	const char *get_default_kbuild_shell(void)
322	{
323	static char *s_pszDefaultShell = NULL;
324	if (!s_pszDefaultShell)
325	{
326	#if defined(__OS2__) \|\| defined(_WIN32) \|\| defined(WINDOWS32)
327	static const char s_szShellName[] = "/kmk_ash.exe";
328	#else
329	static const char s_szShellName[] = "/kmk_ash";
330	#endif
331	const char *pszBin = get_kbuild_bin_path();
332	size_t cchBin = strlen(pszBin);
333	s_pszDefaultShell = xmalloc(cchBin + sizeof(s_szShellName));
334	memcpy(s_pszDefaultShell, pszBin, cchBin);
335	memcpy(&s_pszDefaultShell[cchBin], s_szShellName, sizeof(s_szShellName));
336	}
337	return s_pszDefaultShell;
338	}
339
340	#ifdef KMK_HELPERS
341
342	/**
343	* Applies the specified default path to any relative paths in *ppsz.
344	*
345	* @param pDefPath The default path.
346	* @param ppsz Pointer to the string pointer. If we expand anything, *ppsz
347	* will be replaced and the caller is responsible for calling free() on it.
348	* @param pcch IN: *pcch contains the current string length.
349	* OUT: *pcch contains the new string length.
350	* @param pcchAlloc *pcchAlloc contains the length allocated for the string. Can be NULL.
351	* @param fCanFree Whether *ppsz should be freed when we replace it.
352	*/
353	static void
354	kbuild_apply_defpath(struct variable pDefPath, char ppsz, unsigned int pcch, unsigned int *pcchAlloc, int fCanFree)
355	{
356	const char *pszIterator;
357	const char *pszInCur;
358	unsigned int cchInCur;
359	unsigned int cRelativePaths;
360
361	/*
362	* The first pass, count the relative paths.
363	*/
364	cRelativePaths = 0;
365	pszIterator = *ppsz;
366	while ((pszInCur = find_next_token(&pszIterator, &cchInCur)))
367	{
368	/* is relative? */
369	#ifdef HAVE_DOS_PATHS
370	if (pszInCur[0] != '/' && pszInCur[0] != '\\' && (cchInCur < 2 \|\| pszInCur[1] != ':'))
371	#else
372	if (pszInCur[0] != '/')
373	#endif
374	cRelativePaths++;
375	}
376
377	/*
378	* The second pass construct the new string.
379	*/
380	if (cRelativePaths)
381	{
382	const size_t cchOut = pcch + cRelativePaths (pDefPath->value_length + 1) + 1;
383	char *pszOut = xmalloc(cchOut);
384	char *pszOutCur = pszOut;
385	const char pszInNextCopy = ppsz;
386
387	cRelativePaths = 0;
388	pszIterator = *ppsz;
389	while ((pszInCur = find_next_token(&pszIterator, &cchInCur)))
390	{
391	/* is relative? */
392	#ifdef HAVE_DOS_PATHS
393	if (pszInCur[0] != '/' && pszInCur[0] != '\\' && (cchInCur < 2 \|\| pszInCur[1] != ':'))
394	#else
395	if (pszInCur[0] != '/')
396	#endif
397	{
398	PATH_VAR(szAbsPathIn);
399	PATH_VAR(szAbsPathOut);
400
401	if (pDefPath->value_length + cchInCur + 1 >= GET_PATH_MAX)
402	continue;
403
404	/* Create the abspath input. */
405	memcpy(szAbsPathIn, pDefPath->value, pDefPath->value_length);
406	szAbsPathIn[pDefPath->value_length] = '/';
407	memcpy(&szAbsPathIn[pDefPath->value_length + 1], pszInCur, cchInCur);
408	szAbsPathIn[pDefPath->value_length + 1 + cchInCur] = '\0';
409
410	if (abspath(szAbsPathIn, szAbsPathOut) != NULL)
411	{
412	const size_t cchAbsPathOut = strlen(szAbsPathOut);
413	assert(cchAbsPathOut <= pDefPath->value_length + 1 + cchInCur);
414
415	/* copy leading input */
416	if (pszInCur != pszInNextCopy)
417	{
418	const size_t cchCopy = pszInCur - pszInNextCopy;
419	memcpy(pszOutCur, pszInNextCopy, cchCopy);
420	pszOutCur += cchCopy;
421	}
422	pszInNextCopy = pszInCur + cchInCur;
423
424	/* copy out the abspath. */
425	memcpy(pszOutCur, szAbsPathOut, cchAbsPathOut);
426	pszOutCur += cchAbsPathOut;
427	}
428	}
429	}
430	/* the final copy (includes the nil). */
431	cchInCur = ppsz + pcch - pszInNextCopy;
432	memcpy(pszOutCur, pszInNextCopy, cchInCur);
433	pszOutCur += cchInCur;
434	*pszOutCur = '\0';
435	assert((size_t)(pszOutCur - pszOut) < cchOut);
436
437	/* set return values */
438	if (fCanFree)
439	free(*ppsz);
440	*ppsz = pszOut;
441	*pcch = pszOutCur - pszOut;
442	if (pcchAlloc)
443	*pcchAlloc = cchOut;
444	}
445	}
446
447	/**
448	* Gets a variable that must exist.
449	* Will cause a fatal failure if the variable doesn't exist.
450	*
451	* @returns Pointer to the variable.
452	* @param pszName The variable name.
453	* @param cchName The name length.
454	*/
455	MY_INLINE struct variable *
456	kbuild_get_variable_n(const char *pszName, size_t cchName)
457	{
458	struct variable *pVar = lookup_variable(pszName, cchName);
459	if (!pVar)
460	fatal(NILF, _("variable `%.*s' isn't defined!"), (int)cchName, pszName);
461	if (pVar->recursive)
462	fatal(NILF, _("variable `%.*s' is defined as `recursive' instead of `simple'!"), (int)cchName, pszName);
463
464	MY_ASSERT_MSG(strlen(pVar->value) == pVar->value_length,
465	("%u != %u %.*s\n", pVar->value_length, (unsigned int)strlen(pVar->value), (int)cchName, pVar->name));
466	return pVar;
467	}
468
469
470	/**
471	* Gets a variable that must exist and can be recursive.
472	* Will cause a fatal failure if the variable doesn't exist.
473	*
474	* @returns Pointer to the variable.
475	* @param pszName The variable name.
476	*/
477	static struct variable *
478	kbuild_get_recursive_variable(const char *pszName)
479	{
480	struct variable *pVar = lookup_variable(pszName, strlen(pszName));
481	if (!pVar)
482	fatal(NILF, _("variable `%s' isn't defined!"), pszName);
483
484	MY_ASSERT_MSG(strlen(pVar->value) == pVar->value_length,
485	("%u != %u %s\n", pVar->value_length, (unsigned int)strlen(pVar->value), pVar->name));
486	return pVar;
487	}
488
489
490	/**
491	* Gets a variable that doesn't have to exit, but if it does can be recursive.
492	*
493	* @returns Pointer to the variable.
494	* NULL if not found.
495	* @param pszName The variable name. Doesn't need to be terminated.
496	* @param cchName The name length.
497	*/
498	static struct variable *
499	kbuild_query_recursive_variable_n(const char *pszName, size_t cchName)
500	{
501	struct variable *pVar = lookup_variable(pszName, cchName);
502	MY_ASSERT_MSG(!pVar \|\| strlen(pVar->value) == pVar->value_length,
503	("%u != %u %.*s\n", pVar->value_length, (unsigned int)strlen(pVar->value), (int)cchName, pVar->name));
504	return pVar;
505	}
506
507
508	/**
509	* Gets a variable that doesn't have to exit, but if it does can be recursive.
510	*
511	* @returns Pointer to the variable.
512	* NULL if not found.
513	* @param pszName The variable name.
514	*/
515	static struct variable *
516	kbuild_query_recursive_variable(const char *pszName)
517	{
518	return kbuild_query_recursive_variable_n(pszName, strlen(pszName));
519	}
520
521
522	/**
523	* Converts the specified variable into a 'simple' one.
524	* @returns pVar.
525	* @param pVar The variable.
526	*/
527	static struct variable *
528	kbuild_simplify_variable(struct variable *pVar)
529	{
530	if (memchr(pVar->value, '$', pVar->value_length))
531	{
532	unsigned int value_len;
533	char *pszExpanded = allocated_variable_expand_2(pVar->value, pVar->value_length, &value_len);
534	#ifdef CONFIG_WITH_RDONLY_VARIABLE_VALUE
535	if (pVar->rdonly_val)
536	pVar->rdonly_val = 0;
537	else
538	#endif
539	free(pVar->value);
540	assert(pVar->origin != o_automatic);
541	pVar->value = pszExpanded;
542	pVar->value_length = value_len;
543	pVar->value_alloc_len = value_len + 1;
544	}
545	pVar->recursive = 0;
546	return pVar;
547	}
548
549
550	/**
551	* Looks up a variable.
552	* The value_length field is valid upon successful return.
553	*
554	* @returns Pointer to the variable. NULL if not found.
555	* @param pszName The variable name.
556	* @param cchName The name length.
557	*/
558	MY_INLINE struct variable *
559	kbuild_lookup_variable_n(const char *pszName, size_t cchName)
560	{
561	struct variable *pVar = lookup_variable(pszName, cchName);
562	if (pVar)
563	{
564	MY_ASSERT_MSG(strlen(pVar->value) == pVar->value_length,
565	("%u != %u %.*s\n", pVar->value_length, (unsigned int)strlen(pVar->value), (int)cchName, pVar->name));
566
567	/* Make sure the variable is simple, convert it if necessary. */
568	if (pVar->recursive)
569	kbuild_simplify_variable(pVar);
570	}
571	return pVar;
572	}
573
574
575	/**
576	* Looks up a variable.
577	* The value_length field is valid upon successful return.
578	*
579	* @returns Pointer to the variable. NULL if not found.
580	* @param pszName The variable name.
581	*/
582	MY_INLINE struct variable *
583	kbuild_lookup_variable(const char *pszName)
584	{
585	return kbuild_lookup_variable_n(pszName, strlen(pszName));
586	}
587
588
589	/**
590	* Looks up a variable and applies default a path to all relative paths.
591	* The value_length field is valid upon successful return.
592	*
593	* @returns Pointer to the variable. NULL if not found.
594	* @param pDefPath The default path.
595	* @param pszName The variable name.
596	* @param cchName The name length.
597	*/
598	MY_INLINE struct variable *
599	kbuild_lookup_variable_defpath_n(struct variable pDefPath, const char pszName, size_t cchName)
600	{
601	struct variable *pVar = kbuild_lookup_variable_n(pszName, cchName);
602	if (pVar && pDefPath)
603	{
604	assert(pVar->origin != o_automatic);
605	#ifdef CONFIG_WITH_RDONLY_VARIABLE_VALUE
606	assert(!pVar->rdonly_val);
607	#endif
608	kbuild_apply_defpath(pDefPath, &pVar->value, &pVar->value_length, &pVar->value_alloc_len, 1);
609	}
610	return pVar;
611	}
612
613
614	/**
615	* Looks up a variable and applies default a path to all relative paths.
616	* The value_length field is valid upon successful return.
617	*
618	* @returns Pointer to the variable. NULL if not found.
619	* @param pDefPath The default path.
620	* @param pszName The variable name.
621	*/
622	MY_INLINE struct variable *
623	kbuild_lookup_variable_defpath(struct variable pDefPath, const char pszName)
624	{
625	struct variable *pVar = kbuild_lookup_variable(pszName);
626	if (pVar && pDefPath)
627	{
628	assert(pVar->origin != o_automatic);
629	#ifdef CONFIG_WITH_RDONLY_VARIABLE_VALUE
630	assert(!pVar->rdonly_val);
631	#endif
632	kbuild_apply_defpath(pDefPath, &pVar->value, &pVar->value_length, &pVar->value_alloc_len, 1);
633	}
634	return pVar;
635	}
636
637
638	/**
639	* Gets the first defined property variable.
640	*/
641	static struct variable *
642	kbuild_first_prop(struct variable pTarget, struct variable pSource,
643	struct variable pTool, struct variable pType,
644	struct variable pBldTrg, struct variable pBldTrgArch,
645	const char *pszPropF1, char cchPropF1,
646	const char *pszPropF2, char cchPropF2,
647	const char *pszVarName)
648	{
649	struct variable *pVar;
650	size_t cchBuf;
651	char *pszBuf;
652	char psz, psz1, psz2, psz3, psz4, pszEnd;
653
654	/* calc and allocate a too big name buffer. */
655	cchBuf = cchPropF2 + 1
656	+ cchPropF1 + 1
657	+ pTarget->value_length + 1
658	+ pSource->value_length + 1
659	+ (pTool ? pTool->value_length + 1 : 0)
660	+ pType->value_length + 1
661	+ pBldTrg->value_length + 1
662	+ pBldTrgArch->value_length + 1;
663	pszBuf = xmalloc(cchBuf);
664
665	#define ADD_VAR(pVar) do { my_memcpy(psz, (pVar)->value, (pVar)->value_length); psz += (pVar)->value_length; } while (0)
666	#define ADD_STR(pszStr, cchStr) do { my_memcpy(psz, (pszStr), (cchStr)); psz += (cchStr); } while (0)
667	#define ADD_CSTR(pszStr) do { my_memcpy(psz, pszStr, sizeof(pszStr) - 1); psz += sizeof(pszStr) - 1; } while (0)
668	#define ADD_CH(ch) do { *psz++ = (ch); } while (0)
669
670	/*
671	* $(target)_$(source)_$(type)$(propf2).$(bld_trg).$(bld_trg_arch)
672	*/
673	psz = pszBuf;
674	ADD_VAR(pTarget);
675	ADD_CH('_');
676	ADD_VAR(pSource);
677	ADD_CH('_');
678	psz2 = psz;
679	ADD_VAR(pType);
680	ADD_STR(pszPropF2, cchPropF2);
681	psz3 = psz;
682	ADD_CH('.');
683	ADD_VAR(pBldTrg);
684	psz4 = psz;
685	ADD_CH('.');
686	ADD_VAR(pBldTrgArch);
687	pVar = kbuild_lookup_variable_n(pszBuf, psz - pszBuf);
688
689	/* $(target)_$(source)_$(type)$(propf2).$(bld_trg) */
690	if (!pVar)
691	pVar = kbuild_lookup_variable_n(pszBuf, psz4 - pszBuf);
692
693	/* $(target)_$(source)_$(type)$(propf2) */
694	if (!pVar)
695	pVar = kbuild_lookup_variable_n(pszBuf, psz3 - pszBuf);
696
697	/*
698	* $(target)_$(source)_$(propf2).$(bld_trg).$(bld_trg_arch)
699	*/
700	if (!pVar)
701	{
702	psz = psz2;
703	ADD_STR(pszPropF2, cchPropF2);
704	psz3 = psz;
705	ADD_CH('.');
706	ADD_VAR(pBldTrg);
707	psz4 = psz;
708	ADD_CH('.');
709	ADD_VAR(pBldTrgArch);
710	pVar = kbuild_lookup_variable_n(pszBuf, psz - pszBuf);
711
712	/* $(target)_$(source)_$(propf2).$(bld_trg) */
713	if (!pVar)
714	pVar = kbuild_lookup_variable_n(pszBuf, psz4 - pszBuf);
715
716	/* $(target)_$(source)_$(propf2) */
717	if (!pVar)
718	pVar = kbuild_lookup_variable_n(pszBuf, psz3 - pszBuf);
719	}
720
721
722	/*
723	* $(source)_$(type)$(propf2).$(bld_trg).$(bld_trg_arch)
724	*/
725	if (!pVar)
726	{
727	psz = pszBuf;
728	ADD_VAR(pSource);
729	ADD_CH('_');
730	psz2 = psz;
731	ADD_VAR(pType);
732	ADD_STR(pszPropF2, cchPropF2);
733	psz3 = psz;
734	ADD_CH('.');
735	ADD_VAR(pBldTrg);
736	psz4 = psz;
737	ADD_CH('.');
738	ADD_VAR(pBldTrgArch);
739	pVar = kbuild_lookup_variable_n(pszBuf, psz - pszBuf);
740
741	/* $(source)_$(type)$(propf2).$(bld_trg) */
742	if (!pVar)
743	pVar = kbuild_lookup_variable_n(pszBuf, psz4 - pszBuf);
744
745	/* $(source)_$(type)$(propf2) */
746	if (!pVar)
747	pVar = kbuild_lookup_variable_n(pszBuf, psz3 - pszBuf);
748
749	/*
750	* $(source)_$(propf2).$(bld_trg).$(bld_trg_arch)
751	*/
752	if (!pVar)
753	{
754	psz = psz2;
755	ADD_STR(pszPropF2, cchPropF2);
756	psz3 = psz;
757	ADD_CH('.');
758	ADD_VAR(pBldTrg);
759	psz4 = psz;
760	ADD_CH('.');
761	ADD_VAR(pBldTrgArch);
762	pVar = kbuild_lookup_variable_n(pszBuf, psz - pszBuf);
763
764	/* $(source)_$(propf2).$(bld_trg) */
765	if (!pVar)
766	pVar = kbuild_lookup_variable_n(pszBuf, psz4 - pszBuf);
767
768	/* $(source)_$(propf2) */
769	if (!pVar)
770	pVar = kbuild_lookup_variable_n(pszBuf, psz3 - pszBuf);
771	}
772	}
773
774	/*
775	* $(target)_$(type)$(propf2).$(bld_trg).$(bld_trg_arch)
776	*/
777	if (!pVar)
778	{
779	psz = pszBuf;
780	ADD_VAR(pTarget);
781	ADD_CH('_');
782	psz2 = psz;
783	ADD_VAR(pType);
784	ADD_STR(pszPropF2, cchPropF2);
785	psz3 = psz;
786	ADD_CH('.');
787	ADD_VAR(pBldTrg);
788	psz4 = psz;
789	ADD_CH('.');
790	ADD_VAR(pBldTrgArch);
791	pVar = kbuild_lookup_variable_n(pszBuf, psz - pszBuf);
792
793	/* $(target)_$(type)$(propf2).$(bld_trg) */
794	if (!pVar)
795	pVar = kbuild_lookup_variable_n(pszBuf, psz4 - pszBuf);
796
797	/* $(target)_$(type)$(propf2) */
798	if (!pVar)
799	pVar = kbuild_lookup_variable_n(pszBuf, psz3 - pszBuf);
800
801	/* $(target)_$(propf2).$(bld_trg).$(bld_trg_arch) */
802	if (!pVar)
803	{
804	psz = psz2;
805	ADD_STR(pszPropF2, cchPropF2);
806	psz3 = psz;
807	ADD_CH('.');
808	ADD_VAR(pBldTrg);
809	psz4 = psz;
810	ADD_CH('.');
811	ADD_VAR(pBldTrgArch);
812	pVar = kbuild_lookup_variable_n(pszBuf, psz - pszBuf);
813	}
814
815	/* $(target)_$(propf2).$(bld_trg) */
816	if (!pVar)
817	pVar = kbuild_lookup_variable_n(pszBuf, psz4 - pszBuf);
818
819	/* $(target)_$(propf2) */
820	if (!pVar)
821	pVar = kbuild_lookup_variable_n(pszBuf, psz3 - pszBuf);
822	}
823
824	/*
825	* TOOL_$(tool)_$(type)$(propf2).$(bld_trg).$(bld_trg_arch)
826	*/
827	if (!pVar && pTool)
828	{
829	psz = pszBuf;
830	ADD_CSTR("TOOL_");
831	ADD_VAR(pTool);
832	ADD_CH('_');
833	psz2 = psz;
834	ADD_VAR(pType);
835	ADD_STR(pszPropF2, cchPropF2);
836	psz3 = psz;
837	ADD_CH('.');
838	ADD_VAR(pBldTrg);
839	psz4 = psz;
840	ADD_CH('.');
841	ADD_VAR(pBldTrgArch);
842	pVar = kbuild_lookup_variable_n(pszBuf, psz - pszBuf);
843
844	/* TOOL_$(tool)_$(type)$(propf2).$(bld_trg) */
845	if (!pVar)
846	pVar = kbuild_lookup_variable_n(pszBuf, psz4 - pszBuf);
847
848	/* TOOL_$(tool)_$(type)$(propf2) */
849	if (!pVar)
850	pVar = kbuild_lookup_variable_n(pszBuf, psz3 - pszBuf);
851
852	/* TOOL_$(tool)_$(propf2).$(bld_trg).$(bld_trg_arch) */
853	if (!pVar)
854	{
855	psz = psz2;
856	ADD_STR(pszPropF2, cchPropF2);
857	psz3 = psz;
858	ADD_CH('.');
859	ADD_VAR(pBldTrg);
860	psz4 = psz;
861	ADD_CH('.');
862	ADD_VAR(pBldTrgArch);
863	pVar = kbuild_lookup_variable_n(pszBuf, psz - pszBuf);
864
865	/* TOOL_$(tool)_$(propf2).$(bld_trg) */
866	if (!pVar)
867	pVar = kbuild_lookup_variable_n(pszBuf, psz4 - pszBuf);
868
869	/* TOOL_$(tool)_$(propf2) */
870	if (!pVar)
871	pVar = kbuild_lookup_variable_n(pszBuf, psz3 - pszBuf);
872	}
873	}
874
875	/*
876	* $(type)$(propf1).$(bld_trg).$(bld_trg_arch)
877	*/
878	if (!pVar)
879	{
880	psz = pszBuf;
881	ADD_VAR(pType);
882	ADD_STR(pszPropF1, cchPropF1);
883	psz3 = psz;
884	ADD_CH('.');
885	ADD_VAR(pBldTrg);
886	psz4 = psz;
887	ADD_CH('.');
888	ADD_VAR(pBldTrgArch);
889	pVar = kbuild_lookup_variable_n(pszBuf, psz - pszBuf);
890
891	/* $(type)$(propf1).$(bld_trg) */
892	if (!pVar)
893	pVar = kbuild_lookup_variable_n(pszBuf, psz4 - pszBuf);
894
895	/* $(type)$(propf1) */
896	if (!pVar)
897	pVar = kbuild_lookup_variable_n(pszBuf, psz3 - pszBuf);
898
899	/*
900	* $(propf1).$(bld_trg).$(bld_trg_arch)
901	*/
902	if (!pVar)
903	{
904	psz1 = pszBuf + pType->value_length;
905	pVar = kbuild_lookup_variable_n(psz1, psz - psz1);
906
907	/* $(propf1).$(bld_trg) */
908	if (!pVar)
909	pVar = kbuild_lookup_variable_n(psz1, psz4 - psz1);
910
911	/* $(propf1) */
912	if (!pVar)
913	pVar = kbuild_lookup_variable_n(pszPropF1, cchPropF1);
914	}
915	}
916	free(pszBuf);
917	#undef ADD_VAR
918	#undef ADD_STR
919	#undef ADD_CSTR
920	#undef ADD_CH
921
922	if (pVar)
923	{
924	/* strip it */
925	psz = pVar->value;
926	pszEnd = psz + pVar->value_length;
927	while (isblank((unsigned char)*psz))
928	psz++;
929	while (pszEnd > psz && isblank((unsigned char)pszEnd[-1]))
930	pszEnd--;
931	if (pszEnd > psz)
932	{
933	char chSaved = *pszEnd;
934	*pszEnd = '\0';
935	pVar = define_variable_vl(pszVarName, strlen(pszVarName), psz, pszEnd - psz,
936	1 /* duplicate /, o_local, 0 / !recursive */);
937	*pszEnd = chSaved;
938	if (pVar)
939	return pVar;
940	}
941	}
942	return NULL;
943	}
944
945
946	/*
947	_SOURCE_TOOL = $(strip $(firstword \
948	$($(target)_$(source)_$(type)TOOL.$(bld_trg).$(bld_trg_arch)) \
949	$($(target)_$(source)_$(type)TOOL.$(bld_trg)) \
950	$($(target)_$(source)_$(type)TOOL) \
951	$($(target)_$(source)_TOOL.$(bld_trg).$(bld_trg_arch)) \
952	$($(target)_$(source)_TOOL.$(bld_trg)) \
953	$($(target)_$(source)_TOOL) \
954	$($(source)_$(type)TOOL.$(bld_trg).$(bld_trg_arch)) \
955	$($(source)_$(type)TOOL.$(bld_trg)) \
956	$($(source)_$(type)TOOL) \
957	$($(source)_TOOL.$(bld_trg).$(bld_trg_arch)) \
958	$($(source)_TOOL.$(bld_trg)) \
959	$($(source)_TOOL) \
960	$($(target)_$(type)TOOL.$(bld_trg).$(bld_trg_arch)) \
961	$($(target)_$(type)TOOL.$(bld_trg)) \
962	$($(target)_$(type)TOOL) \
963	$($(target)_TOOL.$(bld_trg).$(bld_trg_arch)) \
964	$($(target)_TOOL.$(bld_trg)) \
965	$($(target)_TOOL) \
966	$($(type)TOOL.$(bld_trg).$(bld_trg_arch)) \
967	$($(type)TOOL.$(bld_trg)) \
968	$($(type)TOOL) \
969	$(TOOL.$(bld_trg).$(bld_trg_arch)) \
970	$(TOOL.$(bld_trg)) \
971	$(TOOL) ))
972	*/
973	static struct variable *
974	kbuild_get_source_tool(struct variable pTarget, struct variable pSource, struct variable *pType,
975	struct variable pBldTrg, struct variable pBldTrgArch, const char *pszVarName)
976	{
977	struct variable *pVar = kbuild_first_prop(pTarget, pSource, NULL, pType, pBldTrg, pBldTrgArch,
978	"TOOL", sizeof("TOOL") - 1,
979	"TOOL", sizeof("TOOL") - 1,
980	pszVarName);
981	if (!pVar)
982	fatal(NILF, _("no tool for source `%s' in target `%s'!"), pSource->value, pTarget->value);
983	return pVar;
984	}
985
986
987	/* Implements _SOURCE_TOOL. */
988	char *
989	func_kbuild_source_tool(char o, char argv, const char pszFuncName)
990	{
991	struct variable *pVar = kbuild_get_source_tool(kbuild_get_variable_n(ST("target")),
992	kbuild_get_variable_n(ST("source")),
993	kbuild_get_variable_n(ST("type")),
994	kbuild_get_variable_n(ST("bld_trg")),
995	kbuild_get_variable_n(ST("bld_trg_arch")),
996	argv[0]);
997	if (pVar)
998	o = variable_buffer_output(o, pVar->value, pVar->value_length);
999	(void)pszFuncName;
1000	return o;
1001
1002	}
1003
1004
1005	/* This has been extended a bit, it's now identical to _SOURCE_TOOL.
1006	$(firstword \
1007	$($(target)_$(source)_OBJSUFF.$(bld_trg).$(bld_trg_arch))\
1008	$($(target)_$(source)_OBJSUFF.$(bld_trg))\
1009	$($(target)_$(source)_OBJSUFF)\
1010	$($(source)_OBJSUFF.$(bld_trg).$(bld_trg_arch))\
1011	$($(source)_OBJSUFF.$(bld_trg))\
1012	$($(source)_OBJSUFF)\
1013	$($(target)_OBJSUFF.$(bld_trg).$(bld_trg_arch))\
1014	$($(target)_OBJSUFF.$(bld_trg))\
1015	$($(target)_OBJSUFF)\
1016	$(TOOL_$(tool)_$(type)OBJSUFF.$(bld_trg).$(bld_trg_arch))\
1017	$(TOOL_$(tool)_$(type)OBJSUFF.$(bld_trg))\
1018	$(TOOL_$(tool)_$(type)OBJSUFF)\
1019	$(SUFF_OBJ))
1020	*/
1021	static struct variable *
1022	kbuild_get_object_suffix(struct variable pTarget, struct variable pSource,
1023	struct variable pTool, struct variable pType,
1024	struct variable pBldTrg, struct variable pBldTrgArch, const char *pszVarName)
1025	{
1026	struct variable *pVar = kbuild_first_prop(pTarget, pSource, pTool, pType, pBldTrg, pBldTrgArch,
1027	"SUFF_OBJ", sizeof("SUFF_OBJ") - 1,
1028	"OBJSUFF", sizeof("OBJSUFF") - 1,
1029	pszVarName);
1030	if (!pVar)
1031	fatal(NILF, _("no OBJSUFF attribute or SUFF_OBJ default for source `%s' in target `%s'!"), pSource->value, pTarget->value);
1032	return pVar;
1033	}
1034
1035
1036	/* */
1037	char *
1038	func_kbuild_object_suffix(char o, char argv, const char pszFuncName)
1039	{
1040	struct variable *pVar = kbuild_get_object_suffix(kbuild_get_variable_n(ST("target")),
1041	kbuild_get_variable_n(ST("source")),
1042	kbuild_get_variable_n(ST("tool")),
1043	kbuild_get_variable_n(ST("type")),
1044	kbuild_get_variable_n(ST("bld_trg")),
1045	kbuild_get_variable_n(ST("bld_trg_arch")),
1046	argv[0]);
1047	if (pVar)
1048	o = variable_buffer_output(o, pVar->value, pVar->value_length);
1049	(void)pszFuncName;
1050	return o;
1051
1052	}
1053
1054
1055	/*
1056	## Figure out where to put object files.
1057	# @param $1 source file
1058	# @param $2 normalized main target
1059	# @remark There are two major hacks here:
1060	# 1. Source files in the output directory are translated into a gen/ subdir.
1061	# 2. Catch anyone specifying $(PATH_SUB_CURRENT)/sourcefile.c.
1062	_OBJECT_BASE = $(PATH_TARGET)/$(2)/$(call no-root-slash,$(call no-drive,$(basename \
1063	$(patsubst $(PATH_ROOT)/%,%,$(patsubst $(PATH_SUB_CURRENT)/%,%,$(patsubst $(PATH_TARGET)/$(2)/%,gen/%,$(1)))))))
1064	*/
1065	static struct variable *
1066	kbuild_get_object_base(struct variable pTarget, struct variable pSource, const char *pszVarName)
1067	{
1068	struct variable *pPathTarget = kbuild_get_variable_n(ST("PATH_TARGET"));
1069	struct variable *pPathRoot = kbuild_get_variable_n(ST("PATH_ROOT"));
1070	struct variable *pPathSubCur = kbuild_get_variable_n(ST("PATH_SUB_CURRENT"));
1071	const char *pszSrcPrefix = NULL;
1072	size_t cchSrcPrefix = 0;
1073	size_t cchSrc = 0;
1074	const char *pszSrcEnd;
1075	char *pszSrc;
1076	char *pszResult;
1077	char *psz;
1078	char *pszDot;
1079	size_t cch;
1080
1081	/*
1082	* Strip the source filename of any uncessary leading path and root specs.
1083	*/
1084	/* */
1085	if ( pSource->value_length > pPathTarget->value_length
1086	&& !strncmp(pSource->value, pPathTarget->value, pPathTarget->value_length))
1087	{
1088	pszSrc = pSource->value + pPathTarget->value_length;
1089	pszSrcPrefix = "gen/";
1090	cchSrcPrefix = sizeof("gen/") - 1;
1091	if ( *pszSrc == '/'
1092	&& !strncmp(pszSrc + 1, pTarget->value, pTarget->value_length)
1093	&& ( pszSrc[pTarget->value_length + 1] == '/'
1094	\|\| pszSrc[pTarget->value_length + 1] == '\0'))
1095	pszSrc += 1 + pTarget->value_length;
1096	}
1097	else if ( pSource->value_length > pPathRoot->value_length
1098	&& !strncmp(pSource->value, pPathRoot->value, pPathRoot->value_length))
1099	{
1100	pszSrc = pSource->value + pPathRoot->value_length;
1101	if ( *pszSrc == '/'
1102	&& !strncmp(pszSrc + 1, pPathSubCur->value, pPathSubCur->value_length)
1103	&& ( pszSrc[pPathSubCur->value_length + 1] == '/'
1104	\|\| pszSrc[pPathSubCur->value_length + 1] == '\0'))
1105	pszSrc += 1 + pPathSubCur->value_length;
1106	}
1107	else
1108	pszSrc = pSource->value;
1109
1110	/* skip root specification */
1111	#ifdef HAVE_DOS_PATHS
1112	if (isalpha(pszSrc[0]) && pszSrc[1] == ':')
1113	pszSrc += 2;
1114	#endif
1115	while (*pszSrc == '/'
1116	#ifdef HAVE_DOS_PATHS
1117	\|\| *pszSrc == '\\'
1118	#endif
1119	)
1120	pszSrc++;
1121
1122	/* drop the source extension. */
1123	pszSrcEnd = pSource->value + pSource->value_length;
1124	for (;;)
1125	{
1126	pszSrcEnd--;
1127	if ( pszSrcEnd <= pszSrc
1128	\|\| *pszSrcEnd == '/'
1129	#ifdef HAVE_DOS_PATHS
1130	\|\| *pszSrcEnd == '\\'
1131	\|\| *pszSrcEnd == ':'
1132	#endif
1133	)
1134	{
1135	pszSrcEnd = pSource->value + pSource->value_length;
1136	break;
1137	}
1138	if (*pszSrcEnd == '.')
1139	break;
1140	}
1141
1142	/*
1143	* Assemble the string on the heap and define the objbase variable
1144	* which we then return.
1145	*/
1146	cchSrc = pszSrcEnd - pszSrc;
1147	cch = pPathTarget->value_length
1148	+ 1 /* slash */
1149	+ pTarget->value_length
1150	+ 1 /* slash */
1151	+ cchSrcPrefix
1152	+ cchSrc
1153	+ 1;
1154	psz = pszResult = xmalloc(cch);
1155
1156	memcpy(psz, pPathTarget->value, pPathTarget->value_length); psz += pPathTarget->value_length;
1157	*psz++ = '/';
1158	memcpy(psz, pTarget->value, pTarget->value_length); psz += pTarget->value_length;
1159	*psz++ = '/';
1160	if (pszSrcPrefix)
1161	{
1162	memcpy(psz, pszSrcPrefix, cchSrcPrefix);
1163	psz += cchSrcPrefix;
1164	}
1165	pszDot = psz;
1166	memcpy(psz, pszSrc, cchSrc); psz += cchSrc;
1167	*psz = '\0';
1168
1169	/* convert '..' path elements in the source to 'dt'. */
1170	while ((pszDot = memchr(pszDot, '.', psz - pszDot)) != NULL)
1171	{
1172	if ( pszDot[1] == '.'
1173	&& ( pszDot == psz
1174	\|\| pszDot[-1] == '/'
1175	#ifdef HAVE_DOS_PATHS
1176	\|\| pszDot[-1] == '\\'
1177	\|\| pszDot[-1] == ':'
1178	#endif
1179	)
1180	&& ( !pszDot[2]
1181	\|\| pszDot[2] == '/'
1182	#ifdef HAVE_DOS_PATHS
1183	\|\| pszDot[2] == '\\'
1184	\|\| pszDot[2] == ':'
1185	#endif
1186	)
1187	)
1188	{
1189	*pszDot++ = 'd';
1190	*pszDot++ = 't';
1191	}
1192	else
1193	pszDot++;
1194	}
1195
1196	/*
1197	* Define the variable in the current set and return it.
1198	*/
1199	return define_variable_vl(pszVarName, strlen(pszVarName), pszResult, cch - 1,
1200	0 /* use pszResult /, o_local, 0 / !recursive */);
1201	}
1202
1203
1204	/* Implements _OBJECT_BASE. */
1205	char *
1206	func_kbuild_object_base(char o, char argv, const char pszFuncName)
1207	{
1208	struct variable *pVar = kbuild_get_object_base(kbuild_lookup_variable("target"),
1209	kbuild_lookup_variable("source"),
1210	argv[0]);
1211	if (pVar)
1212	o = variable_buffer_output(o, pVar->value, pVar->value_length);
1213	(void)pszFuncName;
1214	return o;
1215
1216	}
1217
1218
1219	struct kbuild_sdks
1220	{
1221	char *apsz[4];
1222	struct variable *pa;
1223	unsigned c;
1224	unsigned iGlobal;
1225	unsigned cGlobal;
1226	unsigned iTarget;
1227	unsigned cTarget;
1228	unsigned iSource;
1229	unsigned cSource;
1230	unsigned iTargetSource;
1231	unsigned cTargetSource;
1232	unsigned int cchMax;
1233	};
1234
1235
1236	/* Fills in the SDK struct (remember to free it). */
1237	static void
1238	kbuild_get_sdks(struct kbuild_sdks pSdks, struct variable pTarget, struct variable *pSource,
1239	struct variable pBldType, struct variable pBldTrg, struct variable *pBldTrgArch)
1240	{
1241	unsigned i;
1242	unsigned j;
1243	size_t cchTmp, cch;
1244	char *pszTmp;
1245	unsigned cchCur;
1246	char *pszCur;
1247	const char *pszIterator;
1248
1249	/** @todo rewrite this to avoid sprintf and allocated_varaible_expand_2. */
1250
1251	/* basic init. */
1252	pSdks->cchMax = 0;
1253	pSdks->pa = NULL;
1254	pSdks->c = 0;
1255	i = 0;
1256
1257	/* determin required tmp variable name space. */
1258	cchTmp = sizeof("$(__SDKS) $(__SDKS.) $(__SDKS.) $(__SDKS.) $(__SDKS..)")
1259	+ (pTarget->value_length + pSource->value_length) * 5
1260	+ pBldType->value_length
1261	+ pBldTrg->value_length
1262	+ pBldTrgArch->value_length
1263	+ pBldTrg->value_length + pBldTrgArch->value_length;
1264	pszTmp = alloca(cchTmp);
1265
1266	/* the global sdks. */
1267	pSdks->iGlobal = i;
1268	pSdks->cGlobal = 0;
1269	cch = sprintf(pszTmp, "$(SDKS) $(SDKS.%s) $(SDKS.%s) $(SDKS.%s) $(SDKS.%s.%s)",
1270	pBldType->value,
1271	pBldTrg->value,
1272	pBldTrgArch->value,
1273	pBldTrg->value, pBldTrgArch->value);
1274	pszIterator = pSdks->apsz[0] = allocated_variable_expand_2(pszTmp, cch, NULL);
1275	while ((pszCur = find_next_token(&pszIterator, &cchCur)) != 0)
1276	pSdks->cGlobal++;
1277	i += pSdks->cGlobal;
1278
1279	/* the target sdks.*/
1280	pSdks->iTarget = i;
1281	pSdks->cTarget = 0;
1282	cch = sprintf(pszTmp, "$(%s_SDKS) $(%s_SDKS.%s) $(%s_SDKS.%s) $(%s_SDKS.%s) $(%s_SDKS.%s.%s)",
1283	pTarget->value,
1284	pTarget->value, pBldType->value,
1285	pTarget->value, pBldTrg->value,
1286	pTarget->value, pBldTrgArch->value,
1287	pTarget->value, pBldTrg->value, pBldTrgArch->value);
1288	pszIterator = pSdks->apsz[1] = allocated_variable_expand_2(pszTmp, cch, NULL);
1289	while ((pszCur = find_next_token(&pszIterator, &cchCur)) != 0)
1290	pSdks->cTarget++;
1291	i += pSdks->cTarget;
1292
1293	/* the source sdks.*/
1294	pSdks->iSource = i;
1295	pSdks->cSource = 0;
1296	cch = sprintf(pszTmp, "$(%s_SDKS) $(%s_SDKS.%s) $(%s_SDKS.%s) $(%s_SDKS.%s) $(%s_SDKS.%s.%s)",
1297	pSource->value,
1298	pSource->value, pBldType->value,
1299	pSource->value, pBldTrg->value,
1300	pSource->value, pBldTrgArch->value,
1301	pSource->value, pBldTrg->value, pBldTrgArch->value);
1302	pszIterator = pSdks->apsz[2] = allocated_variable_expand_2(pszTmp, cch, NULL);
1303	while ((pszCur = find_next_token(&pszIterator, &cchCur)) != 0)
1304	pSdks->cSource++;
1305	i += pSdks->cSource;
1306
1307	/* the target + source sdks. */
1308	pSdks->iTargetSource = i;
1309	pSdks->cTargetSource = 0;
1310	cch = sprintf(pszTmp, "$(%s_%s_SDKS) $(%s_%s_SDKS.%s) $(%s_%s_SDKS.%s) $(%s_%s_SDKS.%s) $(%s_%s_SDKS.%s.%s)",
1311	pTarget->value, pSource->value,
1312	pTarget->value, pSource->value, pBldType->value,
1313	pTarget->value, pSource->value, pBldTrg->value,
1314	pTarget->value, pSource->value, pBldTrgArch->value,
1315	pTarget->value, pSource->value, pBldTrg->value, pBldTrgArch->value);
1316	assert(cch < cchTmp); (void)cch;
1317	pszIterator = pSdks->apsz[3] = allocated_variable_expand_2(pszTmp, cch, NULL);
1318	while ((pszCur = find_next_token(&pszIterator, &cchCur)) != 0)
1319	pSdks->cTargetSource++;
1320	i += pSdks->cTargetSource;
1321
1322	pSdks->c = i;
1323	if (!i)
1324	return;
1325
1326	/*
1327	* Allocate the variable array and create the variables.
1328	*/
1329	pSdks->pa = (struct variable )xmalloc(sizeof(pSdks->pa[0]) i);
1330	memset(pSdks->pa, 0, sizeof(pSdks->pa[0]) * i);
1331	for (i = j = 0; j < sizeof(pSdks->apsz) / sizeof(pSdks->apsz[0]); j++)
1332	{
1333	pszIterator = pSdks->apsz[j];
1334	while ((pszCur = find_next_token(&pszIterator, &cchCur)) != 0)
1335	{
1336	pSdks->pa[i].value = pszCur;
1337	pSdks->pa[i].value_length = cchCur;
1338	i++;
1339	}
1340	}
1341	assert(i == pSdks->c);
1342
1343	/* terminate them (find_next_token won't work if we terminate them in the previous loop). */
1344	while (i-- > 0)
1345	{
1346	pSdks->pa[i].value[pSdks->pa[i].value_length] = '\0';
1347
1348	/* calc the max variable length too. */
1349	if (pSdks->cchMax < (unsigned int)pSdks->pa[i].value_length)
1350	pSdks->cchMax = pSdks->pa[i].value_length;
1351	}
1352	}
1353
1354
1355	/* releases resources allocated in the kbuild_get_sdks. */
1356	static void
1357	kbuild_put_sdks(struct kbuild_sdks *pSdks)
1358	{
1359	unsigned j;
1360	for (j = 0; j < sizeof(pSdks->apsz) / sizeof(pSdks->apsz[0]); j++)
1361	free(pSdks->apsz[j]);
1362	free(pSdks->pa);
1363	}
1364
1365
1366	/* this kind of stuff:
1367
1368	defs := $(kb-src-exp defs)
1369	$(TOOL_$(tool)_DEFS)\
1370	$(TOOL_$(tool)_DEFS.$(bld_type))\
1371	$(TOOL_$(tool)_DEFS.$(bld_trg))\
1372	$(TOOL_$(tool)_DEFS.$(bld_trg_arch))\
1373	$(TOOL_$(tool)_DEFS.$(bld_trg).$(bld_trg_arch))\
1374	$(TOOL_$(tool)_DEFS.$(bld_trg_cpu))\
1375	$(TOOL_$(tool)_$(type)DEFS)\
1376	$(TOOL_$(tool)_$(type)DEFS.$(bld_type))\
1377	$(foreach sdk, $(SDKS.$(bld_trg)) \
1378	$(SDKS.$(bld_trg).$(bld_trg_arch)) \
1379	$(SDKS.$(bld_type)) \
1380	$(SDKS),\
1381	$(SDK_$(sdk)_DEFS)\
1382	$(SDK_$(sdk)_DEFS.$(bld_type))\
1383	$(SDK_$(sdk)_DEFS.$(bld_trg))\
1384	$(SDK_$(sdk)_DEFS.$(bld_trg_arch))\
1385	$(SDK_$(sdk)_DEFS.$(bld_trg).$(bld_trg_arch))\
1386	$(SDK_$(sdk)_DEFS.$(bld_trg_cpu))\
1387	$(SDK_$(sdk)_$(type)DEFS)\
1388	$(SDK_$(sdk)_$(type)DEFS.$(bld_type))\
1389	$(SDK_$(sdk)_$(type)DEFS.$(bld_trg))\
1390	$(SDK_$(sdk)_$(type)DEFS.$(bld_trg_arch))\
1391	$(SDK_$(sdk)_$(type)DEFS.$(bld_trg).$(bld_trg_arch))\
1392	$(SDK_$(sdk)_$(type)DEFS.$(bld_trg_cpu)))\
1393	$(DEFS)\
1394	$(DEFS.$(bld_type))\
1395	$(DEFS.$(bld_trg))\
1396	$(DEFS.$(bld_trg_arch))\
1397	$(DEFS.$(bld_trg).$(bld_trg_arch))\
1398	$(DEFS.$(bld_trg_cpu))\
1399	$($(type)DEFS)\
1400	$($(type)DEFS.$(bld_type))\
1401	$($(type)DEFS.$(bld_trg))\
1402	$($(type)DEFS.$(bld_trg_arch))\
1403	$($(type)DEFS.$(bld_trg).$(bld_trg_arch))\
1404	$($(type)DEFS.$(bld_trg_cpu))\
1405	$(foreach sdk, $($(target)_SDKS.$(bld_trg)) \
1406	$($(target)_SDKS.$(bld_trg).$(bld_trg_arch)) \
1407	$($(target)_SDKS.$(bld_type)) \
1408	$($(target)_SDKS),\
1409	$(SDK_$(sdk)_DEFS)\
1410	$(SDK_$(sdk)_DEFS.$(bld_type))\
1411	$(SDK_$(sdk)_DEFS.$(bld_trg))\
1412	$(SDK_$(sdk)_DEFS.$(bld_trg_arch))\
1413	$(SDK_$(sdk)_DEFS.$(bld_trg).$(bld_trg_arch))\
1414	$(SDK_$(sdk)_DEFS.$(bld_trg_cpu))\
1415	$(SDK_$(sdk)_$(type)DEFS)\
1416	$(SDK_$(sdk)_$(type)DEFS.$(bld_type))\
1417	$(SDK_$(sdk)_$(type)DEFS.$(bld_trg))\
1418	$(SDK_$(sdk)_$(type)DEFS.$(bld_trg_arch))\
1419	$(SDK_$(sdk)_$(type)DEFS.$(bld_trg).$(bld_trg_arch))\
1420	$(SDK_$(sdk)_$(type)DEFS.$(bld_trg_cpu)))\
1421	$($(target)_DEFS)\
1422	$($(target)_DEFS.$(bld_type))\
1423	$($(target)_DEFS.$(bld_trg))\
1424	$($(target)_DEFS.$(bld_trg_arch))\
1425	$($(target)_DEFS.$(bld_trg).$(bld_trg_arch))\
1426	$($(target)_DEFS.$(bld_trg_cpu))\
1427	$($(target)_$(type)DEFS)\
1428	$($(target)_$(type)DEFS.$(bld_type))\
1429	$($(target)_$(type)DEFS.$(bld_trg))\
1430	$($(target)_$(type)DEFS.$(bld_trg_arch))\
1431	$($(target)_$(type)DEFS.$(bld_trg).$(bld_trg_arch))\
1432	$($(target)_$(type)DEFS.$(bld_trg_cpu))\
1433	$(foreach sdk, $($(source)_SDKS.$(bld_trg)) \
1434	$($(source)_SDKS.$(bld_trg).$(bld_trg_arch)) \
1435	$($(source)_SDKS.$(bld_type)) \
1436	$($(source)_SDKS),\
1437	$(SDK_$(sdk)_DEFS)\
1438	$(SDK_$(sdk)_DEFS.$(bld_type))\
1439	$(SDK_$(sdk)_DEFS.$(bld_trg))\
1440	$(SDK_$(sdk)_DEFS.$(bld_trg_arch))\
1441	$(SDK_$(sdk)_DEFS.$(bld_trg).$(bld_trg_arch))\
1442	$(SDK_$(sdk)_DEFS.$(bld_trg_cpu))\
1443	$(SDK_$(sdk)_$(type)DEFS)\
1444	$(SDK_$(sdk)_$(type)DEFS.$(bld_type))\
1445	$(SDK_$(sdk)_$(type)DEFS.$(bld_trg))\
1446	$(SDK_$(sdk)_$(type)DEFS.$(bld_trg_arch))\
1447	$(SDK_$(sdk)_$(type)DEFS.$(bld_trg).$(bld_trg_arch))\
1448	$(SDK_$(sdk)_$(type)DEFS.$(bld_trg_cpu)))\
1449	$($(source)_DEFS)\
1450	$($(source)_DEFS.$(bld_type))\
1451	$($(source)_DEFS.$(bld_trg))\
1452	$($(source)_DEFS.$(bld_trg_arch))\
1453	$($(source)_DEFS.$(bld_trg).$(bld_trg_arch))\
1454	$($(source)_DEFS.$(bld_trg_cpu))\
1455	$($(source)_$(type)DEFS)\
1456	$($(source)_$(type)DEFS.$(bld_type))\
1457	$($(source)_$(type)DEFS.$(bld_trg))\
1458	$($(source)_$(type)DEFS.$(bld_trg_arch))\
1459	$($(source)_$(type)DEFS.$(bld_trg).$(bld_trg_arch))\
1460	$($(source)_$(type)DEFS.$(bld_trg_cpu))\
1461	$(foreach sdk, $($(target)_$(source)_SDKS.$(bld_trg)) \
1462	$($(target)_$(source)_SDKS.$(bld_trg).$(bld_trg_arch)) \
1463	$($(target)_$(source)_SDKS.$(bld_type)) \
1464	$($(target)_$(source)_SDKS),\
1465	$(SDK_$(sdk)_DEFS)\
1466	$(SDK_$(sdk)_DEFS.$(bld_type))\
1467	$(SDK_$(sdk)_DEFS.$(bld_trg))\
1468	$(SDK_$(sdk)_DEFS.$(bld_trg_arch))\
1469	$(SDK_$(sdk)_DEFS.$(bld_trg).$(bld_trg_arch))\
1470	$(SDK_$(sdk)_DEFS.$(bld_trg_cpu))\
1471	$(SDK_$(sdk)_$(type)DEFS)\
1472	$(SDK_$(sdk)_$(type)DEFS.$(bld_type))\
1473	$(SDK_$(sdk)_$(type)DEFS.$(bld_trg))\
1474	$(SDK_$(sdk)_$(type)DEFS.$(bld_trg_arch))\
1475	$(SDK_$(sdk)_$(type)DEFS.$(bld_trg).$(bld_trg_arch))\
1476	$(SDK_$(sdk)_$(type)DEFS.$(bld_trg_cpu)))\
1477	$($(target)_$(source)_DEFS)\
1478	$($(target)_$(source)_DEFS.$(bld_type))\
1479	$($(target)_$(source)_DEFS.$(bld_trg))\
1480	$($(target)_$(source)_DEFS.$(bld_trg_arch))\
1481	$($(target)_$(source)_DEFS.$(bld_trg).$(bld_trg_arch))\
1482	$($(target)_$(source)_DEFS.$(bld_trg_cpu))\
1483	$($(target)_$(source)_$(type)DEFS)\
1484	$($(target)_$(source)_$(type)DEFS.$(bld_type))\
1485	$($(target)_$(source)_$(type)DEFS.$(bld_trg))\
1486	$($(target)_$(source)_$(type)DEFS.$(bld_trg_arch))\
1487	$($(target)_$(source)_$(type)DEFS.$(bld_trg).$(bld_trg_arch))\
1488	$($(target)_$(source)_$(type)DEFS.$(bld_trg_cpu))
1489	*/
1490	static struct variable *
1491	kbuild_collect_source_prop(struct variable pTarget, struct variable pSource,
1492	struct variable pTool, struct kbuild_sdks pSdks,
1493	struct variable pType, struct variable pBldType,
1494	struct variable pBldTrg, struct variable pBldTrgArch, struct variable *pBldTrgCpu,
1495	struct variable *pDefPath,
1496	const char *pszProp, size_t cchProp,
1497	const char *pszVarName, size_t cchVarName,
1498	int iDirection)
1499	{
1500	struct variable *pVar;
1501	unsigned iSdk, iSdkEnd;
1502	int cVars, iVar;
1503	size_t cchTotal, cchBuf;
1504	char pszResult, pszBuf, psz, psz2, *psz3;
1505	struct
1506	{
1507	struct variable *pVar;
1508	unsigned int cchExp;
1509	char *pszExp;
1510	} *paVars;
1511
1512	assert(iDirection == 1 \|\| iDirection == -1);
1513
1514	/*
1515	* Calc and allocate a too big name buffer.
1516	*/
1517	cchBuf = cchProp + 1
1518	+ pTarget->value_length + 1
1519	+ pSource->value_length + 1
1520	+ pSdks->cchMax + 1
1521	+ (pTool ? pTool->value_length + 1 : 0)
1522	+ pType->value_length + 1
1523	+ pBldTrg->value_length + 1
1524	+ pBldTrgArch->value_length + 1
1525	+ pBldTrgCpu->value_length + 1
1526	+ pBldType->value_length + 1;
1527	pszBuf = xmalloc(cchBuf);
1528
1529	/*
1530	* Get the variables.
1531	*
1532	* The compiler will get a heart attack when it sees this code ... ;-)
1533	*/
1534	cVars = 12 * (pSdks->c + 5);
1535	paVars = alloca(cVars * sizeof(paVars[0]));
1536
1537	iVar = 0;
1538	cchTotal = 0;
1539
1540	#define ADD_VAR(pVar) do { my_memcpy(psz, (pVar)->value, (pVar)->value_length); psz += (pVar)->value_length; } while (0)
1541	#define ADD_STR(pszStr, cchStr) do { my_memcpy(psz, (pszStr), (cchStr)); psz += (cchStr); } while (0)
1542	#define ADD_CSTR(pszStr) do { my_memcpy(psz, pszStr, sizeof(pszStr) - 1); psz += sizeof(pszStr) - 1; } while (0)
1543	#define ADD_CH(ch) do { *psz++ = (ch); } while (0)
1544	#define DO_VAR_LOOKUP() \
1545	do { \
1546	pVar = kbuild_lookup_variable_n(pszBuf, psz - pszBuf); \
1547	if (pVar) \
1548	{ \
1549	paVars[iVar].pVar = pVar; \
1550	if ( !pVar->recursive \
1551	\|\| !memchr(pVar->value, '$', pVar->value_length)) \
1552	{ \
1553	paVars[iVar].pszExp = pVar->value; \
1554	paVars[iVar].cchExp = pVar->value_length; \
1555	if (pDefPath && paVars[iVar].cchExp) \
1556	kbuild_apply_defpath(pDefPath, &paVars[iVar].pszExp, &paVars[iVar].cchExp, NULL, 0); \
1557	if (paVars[iVar].cchExp) \
1558	{ \
1559	cchTotal += paVars[iVar].cchExp + 1; \
1560	iVar++; \
1561	} \
1562	} \
1563	else \
1564	{ \
1565	paVars[iVar].pszExp = allocated_variable_expand_2(pVar->value, pVar->value_length, &paVars[iVar].cchExp); \
1566	if (pDefPath && paVars[iVar].cchExp) \
1567	kbuild_apply_defpath(pDefPath, &paVars[iVar].pszExp, &paVars[iVar].cchExp, NULL, 1); \
1568	if (paVars[iVar].cchExp) \
1569	{ \
1570	cchTotal += paVars[iVar].cchExp + 1; \
1571	iVar++; \
1572	} \
1573	else \
1574	free(paVars[iVar].pszExp); \
1575	} \
1576	} \
1577	} while (0)
1578	#define DO_SINGLE_PSZ3_VARIATION() \
1579	do { \
1580	DO_VAR_LOOKUP(); \
1581	\
1582	ADD_CH('.'); \
1583	psz3 = psz; \
1584	ADD_VAR(pBldType); \
1585	DO_VAR_LOOKUP(); \
1586	\
1587	psz = psz3; \
1588	ADD_VAR(pBldTrg); \
1589	DO_VAR_LOOKUP(); \
1590	\
1591	psz = psz3; \
1592	ADD_VAR(pBldTrgArch); \
1593	DO_VAR_LOOKUP(); \
1594	\
1595	psz = psz3; \
1596	ADD_VAR(pBldTrg); \
1597	ADD_CH('.'); \
1598	ADD_VAR(pBldTrgArch); \
1599	DO_VAR_LOOKUP(); \
1600	\
1601	psz = psz3; \
1602	ADD_VAR(pBldTrgCpu); \
1603	DO_VAR_LOOKUP(); \
1604	} while (0)
1605
1606	#define DO_DOUBLE_PSZ2_VARIATION() \
1607	do { \
1608	psz2 = psz; \
1609	ADD_STR(pszProp, cchProp); \
1610	DO_SINGLE_PSZ3_VARIATION(); \
1611	\
1612	/* add prop before type */ \
1613	psz = psz2; \
1614	ADD_VAR(pType); \
1615	ADD_STR(pszProp, cchProp); \
1616	DO_SINGLE_PSZ3_VARIATION(); \
1617	} while (0)
1618
1619	/* the tool (lowest priority). */
1620	psz = pszBuf;
1621	ADD_CSTR("TOOL_");
1622	ADD_VAR(pTool);
1623	ADD_CH('_');
1624	DO_DOUBLE_PSZ2_VARIATION();
1625
1626
1627	/* the global sdks. */
1628	iSdkEnd = iDirection == 1 ? pSdks->iGlobal + pSdks->cGlobal : pSdks->iGlobal - 1;
1629	for (iSdk = iDirection == 1 ? pSdks->iGlobal : pSdks->iGlobal + pSdks->cGlobal - 1;
1630	iSdk != iSdkEnd;
1631	iSdk += iDirection)
1632	{
1633	struct variable *pSdk = &pSdks->pa[iSdk];
1634	psz = pszBuf;
1635	ADD_CSTR("SDK_");
1636	ADD_VAR(pSdk);
1637	ADD_CH('_');
1638	DO_DOUBLE_PSZ2_VARIATION();
1639	}
1640
1641	/* the globals. */
1642	psz = pszBuf;
1643	DO_DOUBLE_PSZ2_VARIATION();
1644
1645
1646	/* the target sdks. */
1647	iSdkEnd = iDirection == 1 ? pSdks->iTarget + pSdks->cTarget : pSdks->iTarget - 1;
1648	for (iSdk = iDirection == 1 ? pSdks->iTarget : pSdks->iTarget + pSdks->cTarget - 1;
1649	iSdk != iSdkEnd;
1650	iSdk += iDirection)
1651	{
1652	struct variable *pSdk = &pSdks->pa[iSdk];
1653	psz = pszBuf;
1654	ADD_CSTR("SDK_");
1655	ADD_VAR(pSdk);
1656	ADD_CH('_');
1657	DO_DOUBLE_PSZ2_VARIATION();
1658	}
1659
1660	/* the target. */
1661	psz = pszBuf;
1662	ADD_VAR(pTarget);
1663	ADD_CH('_');
1664	DO_DOUBLE_PSZ2_VARIATION();
1665
1666	/* the source sdks. */
1667	iSdkEnd = iDirection == 1 ? pSdks->iSource + pSdks->cSource : pSdks->iSource - 1;
1668	for (iSdk = iDirection == 1 ? pSdks->iSource : pSdks->iSource + pSdks->cSource - 1;
1669	iSdk != iSdkEnd;
1670	iSdk += iDirection)
1671	{
1672	struct variable *pSdk = &pSdks->pa[iSdk];
1673	psz = pszBuf;
1674	ADD_CSTR("SDK_");
1675	ADD_VAR(pSdk);
1676	ADD_CH('_');
1677	DO_DOUBLE_PSZ2_VARIATION();
1678	}
1679
1680	/* the source. */
1681	psz = pszBuf;
1682	ADD_VAR(pSource);
1683	ADD_CH('_');
1684	DO_DOUBLE_PSZ2_VARIATION();
1685
1686	/* the target + source sdks. */
1687	iSdkEnd = iDirection == 1 ? pSdks->iTargetSource + pSdks->cTargetSource : pSdks->iTargetSource - 1;
1688	for (iSdk = iDirection == 1 ? pSdks->iTargetSource : pSdks->iTargetSource + pSdks->cTargetSource - 1;
1689	iSdk != iSdkEnd;
1690	iSdk += iDirection)
1691	{
1692	struct variable *pSdk = &pSdks->pa[iSdk];
1693	psz = pszBuf;
1694	ADD_CSTR("SDK_");
1695	ADD_VAR(pSdk);
1696	ADD_CH('_');
1697	DO_DOUBLE_PSZ2_VARIATION();
1698	}
1699
1700	/* the target + source. */
1701	psz = pszBuf;
1702	ADD_VAR(pTarget);
1703	ADD_CH('_');
1704	ADD_VAR(pSource);
1705	ADD_CH('_');
1706	DO_DOUBLE_PSZ2_VARIATION();
1707
1708	free(pszBuf);
1709
1710	assert(iVar <= cVars);
1711	cVars = iVar;
1712
1713	/*
1714	* Construct the result value.
1715	*/
1716	if (!cVars \|\| !cchTotal)
1717	pVar = define_variable_vl(pszVarName, cchVarName, "", 0,
1718	1 /* duplicate value / , o_local, 0 / !recursive */);
1719	else
1720	{
1721	psz = pszResult = xmalloc(cchTotal + 1);
1722	if (iDirection == 1)
1723	{
1724	for (iVar = 0; iVar < cVars; iVar++)
1725	{
1726	my_memcpy(psz, paVars[iVar].pszExp, paVars[iVar].cchExp);
1727	psz += paVars[iVar].cchExp;
1728	*psz++ = ' ';
1729	if (paVars[iVar].pszExp != paVars[iVar].pVar->value)
1730	free(paVars[iVar].pszExp);
1731	}
1732	}
1733	else
1734	{
1735	iVar = cVars;
1736	while (iVar-- > 0)
1737	{
1738	my_memcpy(psz, paVars[iVar].pszExp, paVars[iVar].cchExp);
1739	psz += paVars[iVar].cchExp;
1740	*psz++ = ' ';
1741	if (paVars[iVar].pszExp != paVars[iVar].pVar->value)
1742	free(paVars[iVar].pszExp);
1743	}
1744
1745	}
1746	assert(psz != pszResult);
1747	assert(cchTotal == (size_t)(psz - pszResult));
1748	psz[-1] = '\0';
1749	cchTotal--;
1750
1751	pVar = define_variable_vl(pszVarName, cchVarName, pszResult, cchTotal,
1752	0 /* take pszResult / , o_local, 0 / !recursive */);
1753	}
1754
1755	return pVar;
1756
1757	#undef ADD_VAR
1758	#undef ADD_STR
1759	#undef ADD_CSTR
1760	#undef ADD_CH
1761	#undef DO_VAR_LOOKUP
1762	#undef DO_DOUBLE_PSZ2_VARIATION
1763	#undef DO_SINGLE_PSZ3_VARIATION
1764	}
1765
1766
1767	/* get a source property. */
1768	char *
1769	func_kbuild_source_prop(char o, char argv, const char pszFuncName)
1770	{
1771	struct variable *pTarget = kbuild_get_variable_n(ST("target"));
1772	struct variable *pSource = kbuild_get_variable_n(ST("source"));
1773	struct variable *pDefPath = NULL;
1774	struct variable *pType = kbuild_get_variable_n(ST("type"));
1775	struct variable *pTool = kbuild_get_variable_n(ST("tool"));
1776	struct variable *pBldType = kbuild_get_variable_n(ST("bld_type"));
1777	struct variable *pBldTrg = kbuild_get_variable_n(ST("bld_trg"));
1778	struct variable *pBldTrgArch = kbuild_get_variable_n(ST("bld_trg_arch"));
1779	struct variable *pBldTrgCpu = kbuild_get_variable_n(ST("bld_trg_cpu"));
1780	struct variable *pVar;
1781	struct kbuild_sdks Sdks;
1782	int iDirection;
1783	if (!strcmp(argv[2], "left-to-right"))
1784	iDirection = 1;
1785	else if (!strcmp(argv[2], "right-to-left"))
1786	iDirection = -1;
1787	else
1788	fatal(NILF, _("incorrect direction argument `%s'!"), argv[2]);
1789	if (argv[3])
1790	{
1791	const char *psz = argv[3];
1792	while (isspace(*psz))
1793	psz++;
1794	if (*psz)
1795	pDefPath = kbuild_get_variable_n(ST("defpath"));
1796	}
1797
1798	kbuild_get_sdks(&Sdks, pTarget, pSource, pBldType, pBldTrg, pBldTrgArch);
1799
1800	pVar = kbuild_collect_source_prop(pTarget, pSource, pTool, &Sdks, pType,
1801	pBldType, pBldTrg, pBldTrgArch, pBldTrgCpu,
1802	pDefPath,
1803	argv[0], strlen(argv[0]),
1804	argv[1], strlen(argv[1]),
1805	iDirection);
1806	if (pVar)
1807	o = variable_buffer_output(o, pVar->value, pVar->value_length);
1808
1809	kbuild_put_sdks(&Sdks);
1810	(void)pszFuncName;
1811	return o;
1812	}
1813
1814
1815	/*
1816	dep := $(obj)$(SUFF_DEP)
1817	obj := $(outbase)$(objsuff)
1818	dirdep := $(call DIRDEP,$(dir $(outbase)))
1819	PATH_$(target)_$(source) := $(patsubst %/,%,$(dir $(outbase)))
1820	*/
1821	static struct variable *
1822	kbuild_set_object_name_and_dep_and_dirdep_and_PATH_target_source(struct variable pTarget, struct variable pSource,
1823	struct variable pOutBase, struct variable pObjSuff,
1824	const char pszVarName, struct variable *ppDep,
1825	struct variable **ppDirDep)
1826	{
1827	struct variable *pDepSuff = kbuild_get_variable_n(ST("SUFF_DEP"));
1828	struct variable *pObj;
1829	size_t cch = pOutBase->value_length + pObjSuff->value_length + pDepSuff->value_length + 1;
1830	char *pszResult = alloca(cch);
1831	char pszName, psz;
1832
1833	/*
1834	* dep.
1835	*/
1836	psz = pszResult;
1837	memcpy(psz, pOutBase->value, pOutBase->value_length); psz += pOutBase->value_length;
1838	memcpy(psz, pObjSuff->value, pObjSuff->value_length); psz += pObjSuff->value_length;
1839	memcpy(psz, pDepSuff->value, pDepSuff->value_length + 1);
1840	ppDep = define_variable_vl("dep", 3, pszResult, cch - 1, 1 /dup/, o_local, 0 / !recursive */);
1841
1842	/*
1843	* obj
1844	*/
1845	*psz = '\0';
1846	pObj = define_variable_vl(pszVarName, strlen(pszVarName), pszResult, psz - pszResult,
1847	1/* dup /, o_local, 0 / !recursive */);
1848
1849	/*
1850	* PATH_$(target)_$(source) - this is global!
1851	*/
1852	/* calc variable name. */
1853	cch = sizeof("PATH_")-1 + pTarget->value_length + sizeof("_")-1 + pSource->value_length;
1854	psz = pszName = alloca(cch + 1);
1855	memcpy(psz, "PATH_", sizeof("PATH_") - 1); psz += sizeof("PATH_") - 1;
1856	memcpy(psz, pTarget->value, pTarget->value_length); psz += pTarget->value_length;
1857	*psz++ = '_';
1858	memcpy(psz, pSource->value, pSource->value_length + 1);
1859
1860	/* strip off the filename. */
1861	psz = pszResult + pOutBase->value_length;
1862	for (;;)
1863	{
1864	psz--;
1865	if (psz <= pszResult)
1866	fatal(NULL, "whut!?! no path? result=`%s'", pszResult);
1867	#ifdef HAVE_DOS_PATHS
1868	if (*psz == ':')
1869	{
1870	psz++;
1871	break;
1872	}
1873	#endif
1874	if ( *psz == '/'
1875	#ifdef HAVE_DOS_PATHS
1876	\|\| *psz == '\\'
1877	#endif
1878	)
1879	{
1880	while ( psz - 1 > pszResult
1881	&& psz[-1] == '/'
1882	#ifdef HAVE_DOS_PATHS
1883	\|\| psz[-1] == '\\'
1884	#endif
1885	)
1886	psz--;
1887	#ifdef HAVE_DOS_PATHS
1888	if (psz == pszResult + 2 && pszResult[1] == ':')
1889	psz++;
1890	#endif
1891	break;
1892	}
1893	}
1894	*psz = '\0';
1895
1896	/* set global variable */
1897	define_variable_vl_global(pszName, cch, pszResult, psz - pszResult, 1/dup/, o_file, 0 /* !recursive */, NILF);
1898
1899	/*
1900	* dirdep
1901	*/
1902	if ( psz[-1] != '/'
1903	#ifdef HAVE_DOS_PATHS
1904	&& psz[-1] != '\\'
1905	&& psz[-1] != ':'
1906	#endif
1907	)
1908	{
1909	*psz++ = '/';
1910	*psz = '\0';
1911	}
1912	ppDirDep = define_variable_vl("dirdep", 6, pszResult, psz - pszResult, 1/dup/, o_local, 0 / !recursive */);
1913
1914	return pObj;
1915	}
1916
1917
1918	/* setup the base variables for def_target_source_c_cpp_asm_new:
1919
1920	X := $(kb-src-tool tool)
1921	x := $(kb-obj-base outbase)
1922	x := $(kb-obj-suff objsuff)
1923	obj := $(outbase)$(objsuff)
1924	PATH_$(target)_$(source) := $(patsubst %/,%,$(dir $(outbase)))
1925
1926	x := $(kb-src-prop DEFS,defs,left-to-right)
1927	x := $(kb-src-prop INCS,incs,right-to-left)
1928	x := $(kb-src-prop FLAGS,flags,right-to-left)
1929
1930	x := $(kb-src-prop DEPS,deps,left-to-right)
1931	dirdep := $(call DIRDEP,$(dir $(outbase)))
1932	dep := $(obj)$(SUFF_DEP)
1933	*/
1934	char *
1935	func_kbuild_source_one(char o, char argv, const char pszFuncName)
1936	{
1937	static int s_fNoCompileCmdsDepsDefined = -1;
1938	struct variable *pTarget = kbuild_get_variable_n(ST("target"));
1939	struct variable *pSource = kbuild_get_variable_n(ST("source"));
1940	struct variable *pDefPath = kbuild_get_variable_n(ST("defpath"));
1941	struct variable *pType = kbuild_get_variable_n(ST("type"));
1942	struct variable *pBldType = kbuild_get_variable_n(ST("bld_type"));
1943	struct variable *pBldTrg = kbuild_get_variable_n(ST("bld_trg"));
1944	struct variable *pBldTrgArch= kbuild_get_variable_n(ST("bld_trg_arch"));
1945	struct variable *pBldTrgCpu = kbuild_get_variable_n(ST("bld_trg_cpu"));
1946	struct variable *pTool = kbuild_get_source_tool(pTarget, pSource, pType, pBldTrg, pBldTrgArch, "tool");
1947	struct variable *pOutBase = kbuild_get_object_base(pTarget, pSource, "outbase");
1948	struct variable *pObjSuff = kbuild_get_object_suffix(pTarget, pSource, pTool, pType, pBldTrg, pBldTrgArch, "objsuff");
1949	struct variable pDefs, pIncs, pFlags, pDeps, pOrderDeps, pDirDep, pDep, pVar, pOutput, pOutputMaybe;
1950	struct variable *pObj = kbuild_set_object_name_and_dep_and_dirdep_and_PATH_target_source(pTarget, pSource, pOutBase, pObjSuff, "obj", &pDep, &pDirDep);
1951	int fInstallOldVars = 0;
1952	char pszDstVar, pszDst, pszSrcVar, pszSrc, pszVal, psz;
1953	char *pszSavedVarBuf;
1954	unsigned cchSavedVarBuf;
1955	size_t cch;
1956	struct kbuild_sdks Sdks;
1957	int iVer;
1958
1959	/*
1960	* argv[0] is the function version. Prior to r1792 (early 0.1.5) this
1961	* was undefined and footer.kmk always passed an empty string.
1962	*
1963	* Version 2, as implemented in r1797, will make use of the async
1964	* includedep queue feature. This means the files will be read by one or
1965	* more background threads, leaving the eval'ing to be done later on by
1966	* the main thread (in snap_deps).
1967	*/
1968	if (!argv[0][0])
1969	iVer = 0;
1970	else
1971	switch (argv[0][0] \| (argv[0][1] << 8))
1972	{
1973	case '2': iVer = 2; break;
1974	case '3': iVer = 3; break;
1975	case '4': iVer = 4; break;
1976	case '5': iVer = 5; break;
1977	case '6': iVer = 6; break;
1978	case '7': iVer = 7; break;
1979	case '8': iVer = 8; break;
1980	case '9': iVer = 9; break;
1981	case '0': iVer = 0; break;
1982	case '1': iVer = 1; break;
1983	default:
1984	iVer = 0;
1985	psz = argv[0];
1986	while (isblank((unsigned char)*psz))
1987	psz++;
1988	if (*psz)
1989	iVer = atoi(psz);
1990	break;
1991	}
1992
1993	/*
1994	* Gather properties.
1995	*/
1996	kbuild_get_sdks(&Sdks, pTarget, pSource, pBldType, pBldTrg, pBldTrgArch);
1997
1998	if (pDefPath && !pDefPath->value_length)
1999	pDefPath = NULL;
2000	pDefs = kbuild_collect_source_prop(pTarget, pSource, pTool, &Sdks, pType, pBldType, pBldTrg, pBldTrgArch, pBldTrgCpu, NULL,
2001	ST("DEFS"), ST("defs"), 1/* left-to-right */);
2002	pIncs = kbuild_collect_source_prop(pTarget, pSource, pTool, &Sdks, pType, pBldType, pBldTrg, pBldTrgArch, pBldTrgCpu, pDefPath,
2003	ST("INCS"), ST("incs"), -1/* right-to-left */);
2004	pFlags = kbuild_collect_source_prop(pTarget, pSource, pTool, &Sdks, pType, pBldType, pBldTrg, pBldTrgArch, pBldTrgCpu, NULL,
2005	ST("FLAGS"), ST("flags"), 1/* left-to-right */);
2006	pDeps = kbuild_collect_source_prop(pTarget, pSource, pTool, &Sdks, pType, pBldType, pBldTrg, pBldTrgArch, pBldTrgCpu, pDefPath,
2007	ST("DEPS"), ST("deps"), 1/* left-to-right */);
2008	pOrderDeps = kbuild_collect_source_prop(pTarget, pSource, pTool, &Sdks, pType, pBldType, pBldTrg, pBldTrgArch, pBldTrgCpu, pDefPath,
2009	ST("ORDERDEPS"), ST("orderdeps"), 1/* left-to-right */);
2010
2011	/*
2012	* If we've got a default path, we must expand the source now.
2013	* If we do this too early, "<source>_property = stuff" won't work becuase
2014	* our 'source' value isn't what the user expects.
2015	*/
2016	if (pDefPath)
2017	{
2018	/** @todo assert(pSource->origin != o_automatic); We're changing 'source'
2019	* from the foreach loop! */
2020	#ifdef CONFIG_WITH_RDONLY_VARIABLE_VALUE
2021	assert(!pSource->rdonly_val);
2022	#endif
2023	kbuild_apply_defpath(pDefPath, &pSource->value, &pSource->value_length, &pSource->value_alloc_len, 1 /* can free */);
2024	}
2025
2026	/*
2027	# dependencies
2028	ifndef NO_COMPILE_CMDS_DEPS
2029	_DEPFILES_INCLUDED += $(dep)
2030	$(if $(wildcard $(dep)),$(eval include $(dep)))
2031	endif
2032	*/
2033	if (s_fNoCompileCmdsDepsDefined == -1)
2034	s_fNoCompileCmdsDepsDefined = kbuild_lookup_variable_n(ST("NO_COMPILE_CMDS_DEPS")) != NULL;
2035	if (!s_fNoCompileCmdsDepsDefined)
2036	{
2037	pVar = kbuild_query_recursive_variable_n("_DEPFILES_INCLUDED", sizeof("_DEPFILES_INCLUDED") - 1);
2038	if (pVar)
2039	{
2040	if (pVar->recursive)
2041	pVar = kbuild_simplify_variable(pVar);
2042	append_string_to_variable(pVar, pDep->value, pDep->value_length, 1 /* append */);
2043	}
2044	else
2045	define_variable_vl_global("_DEPFILES_INCLUDED", sizeof("_DEPFILES_INCLUDED") - 1,
2046	pDep->value, pDep->value_length,
2047	1 /* duplicate_value */,
2048	o_file,
2049	0 /* recursive */,
2050	NULL /* flocp */);
2051
2052	eval_include_dep(pDep->value, NILF, iVer >= 2 ? incdep_queue : incdep_read_it);
2053	}
2054
2055	/*
2056	# call the tool
2057	$(target)_$(source)_CMDS_ := $(TOOL_$(tool)_COMPILE_$(type)_CMDS)
2058	$(target)_$(source)_OUTPUT_ := $(TOOL_$(tool)_COMPILE_$(type)_OUTPUT)
2059	$(target)_$(source)_OUTPUT_MAYBE_ := $(TOOL_$(tool)_COMPILE_$(type)_OUTPUT_MAYBE)
2060	$(target)_$(source)_DEPEND_ := $(TOOL_$(tool)_COMPILE_$(type)_DEPEND) $(deps) $(source)
2061	$(target)_$(source)_DEPORD_ := $(TOOL_$(tool)_COMPILE_$(type)_DEPORD) $(dirdep)
2062	*/
2063	cch = sizeof("TOOL_") + pTool->value_length + sizeof("_COMPILE_") + pType->value_length + sizeof("_OUTPUT_MAYBE");
2064	if (cch < pTarget->value_length + sizeof("$(_2_OBJS)"))
2065	cch = pTarget->value_length + sizeof("$(_2_OBJS)");
2066	psz = pszSrcVar = alloca(cch);
2067	memcpy(psz, "TOOL_", sizeof("TOOL_") - 1); psz += sizeof("TOOL_") - 1;
2068	memcpy(psz, pTool->value, pTool->value_length); psz += pTool->value_length;
2069	memcpy(psz, "_COMPILE_", sizeof("_COMPILE_") - 1); psz += sizeof("_COMPILE_") - 1;
2070	memcpy(psz, pType->value, pType->value_length); psz += pType->value_length;
2071	pszSrc = psz;
2072
2073	cch = pTarget->value_length + 1 + pSource->value_length + sizeof("_OUTPUT_MAYBE_");
2074	psz = pszDstVar = alloca(cch);
2075	memcpy(psz, pTarget->value, pTarget->value_length); psz += pTarget->value_length;
2076	*psz++ = '_';
2077	memcpy(psz, pSource->value, pSource->value_length); psz += pSource->value_length;
2078	pszDst = psz;
2079
2080	memcpy(pszSrc, "_CMDS", sizeof("_CMDS"));
2081	memcpy(pszDst, "_CMDS_", sizeof("_CMDS_"));
2082	pVar = kbuild_get_recursive_variable(pszSrcVar);
2083	do_variable_definition_2(NILF, pszDstVar, pVar->value, pVar->value_length,
2084	!pVar->recursive, 0, o_file, f_simple, 0 /* !target_var */);
2085
2086	memcpy(pszSrc, "_OUTPUT", sizeof("_OUTPUT"));
2087	memcpy(pszDst, "_OUTPUT_", sizeof("_OUTPUT_"));
2088	pVar = kbuild_get_recursive_variable(pszSrcVar);
2089	pOutput = do_variable_definition_2(NILF, pszDstVar, pVar->value, pVar->value_length,
2090	!pVar->recursive, 0, o_file, f_simple, 0 /* !target_var */);
2091
2092	memcpy(pszSrc, "_OUTPUT_MAYBE", sizeof("_OUTPUT_MAYBE"));
2093	memcpy(pszDst, "_OUTPUT_MAYBE_", sizeof("_OUTPUT_MAYBE_"));
2094	pVar = kbuild_query_recursive_variable(pszSrcVar);
2095	if (pVar)
2096	pOutputMaybe = do_variable_definition_2(NILF, pszDstVar, pVar->value, pVar->value_length,
2097	!pVar->recursive, 0, o_file, f_simple, 0 /* !target_var */);
2098	else
2099	pOutputMaybe = do_variable_definition_2(NILF, pszDstVar, "", 0, 1, 0, o_file, f_simple, 0 /* !target_var */);
2100
2101	memcpy(pszSrc, "_DEPEND", sizeof("_DEPEND"));
2102	memcpy(pszDst, "_DEPEND_", sizeof("_DEPEND_"));
2103	pVar = kbuild_get_recursive_variable(pszSrcVar);
2104	psz = pszVal = xmalloc(pVar->value_length + 1 + pDeps->value_length + 1 + pSource->value_length + 1);
2105	memcpy(psz, pVar->value, pVar->value_length); psz += pVar->value_length;
2106	*psz++ = ' ';
2107	memcpy(psz, pDeps->value, pDeps->value_length); psz += pDeps->value_length;
2108	*psz++ = ' ';
2109	memcpy(psz, pSource->value, pSource->value_length + 1);
2110	do_variable_definition_2(NILF, pszDstVar, pszVal, pVar->value_length + 1 + pDeps->value_length + 1 + pSource->value_length,
2111	!pVar->recursive && !pDeps->recursive && !pSource->recursive,
2112	pszVal, o_file, f_simple, 0 /* !target_var */);
2113
2114	memcpy(pszSrc, "_DEPORD", sizeof("_DEPORD"));
2115	memcpy(pszDst, "_DEPORD_", sizeof("_DEPORD_"));
2116	pVar = kbuild_get_recursive_variable(pszSrcVar);
2117	psz = pszVal = xmalloc(pVar->value_length + 1 + pDirDep->value_length + 1 + pOrderDeps->value_length + 1);
2118	memcpy(psz, pVar->value, pVar->value_length); psz += pVar->value_length;
2119	*psz++ = ' ';
2120	memcpy(psz, pDirDep->value, pDirDep->value_length); psz += pDirDep->value_length;
2121	*psz++ = ' ';
2122	memcpy(psz, pOrderDeps->value, pOrderDeps->value_length + 1);
2123	do_variable_definition_2(NILF, pszDstVar, pszVal,
2124	pVar->value_length + 1 + pDirDep->value_length + 1 + pOrderDeps->value_length,
2125	!pVar->recursive && !pDirDep->recursive && !pOrderDeps->recursive,
2126	pszVal, o_file, f_simple, 0 /* !target_var */);
2127
2128	/*
2129	_OUT_FILES += $($(target)_$(source)_OUTPUT_) $($(target)_$(source)_OUTPUT_MAYBE_)
2130	*/
2131	pVar = kbuild_get_variable_n(ST("_OUT_FILES"));
2132	append_string_to_variable(pVar, pOutput->value, pOutput->value_length, 1 /* append */);
2133	if (pOutputMaybe->value_length)
2134	append_string_to_variable(pVar, pOutputMaybe->value, pOutputMaybe->value_length, 1 /* append */);
2135
2136	/*
2137	$(target)_2_OBJS += $(obj)
2138	*/
2139	memcpy(pszDstVar + pTarget->value_length, "_2_OBJS", sizeof("_2_OBJS"));
2140	pVar = kbuild_query_recursive_variable_n(pszDstVar, pTarget->value_length + sizeof("_2_OBJS") - 1);
2141	fInstallOldVars \|= iVer <= 2 && (!pVar \|\| !pVar->value_length);
2142	if (pVar)
2143	{
2144	if (pVar->recursive)
2145	pVar = kbuild_simplify_variable(pVar);
2146	append_string_to_variable(pVar, pObj->value, pObj->value_length, 1 /* append */);
2147	}
2148	else
2149	define_variable_vl_global(pszDstVar, pTarget->value_length + sizeof("_2_OBJS") - 1,
2150	pObj->value, pObj->value_length,
2151	1 /* duplicate_value */,
2152	o_file,
2153	0 /* recursive */,
2154	NULL /* flocp */);
2155
2156	/*
2157	* Install legacy variables.
2158	*/
2159	if (fInstallOldVars)
2160	{
2161	/* $(target)_OBJS_ = $($(target)_2_OBJS)*/
2162	memcpy(pszDstVar + pTarget->value_length, "_OBJS_", sizeof("_OBJS_"));
2163
2164	pszSrcVar[0] = '$';
2165	pszSrcVar[1] = '(';
2166	memcpy(pszSrcVar + 2, pTarget->value, pTarget->value_length);
2167	psz = pszSrcVar + 2 + pTarget->value_length;
2168	memcpy(psz, "_2_OBJS)", sizeof("_2_OBJS)"));
2169
2170	define_variable_vl_global(pszDstVar, pTarget->value_length + sizeof("_OBJS_") - 1,
2171	pszSrcVar, pTarget->value_length + sizeof("$(_2_OBJS)") - 1,
2172	1 /* duplicate_value */,
2173	o_file,
2174	1 /* recursive */,
2175	NULL /* flocp */);
2176	}
2177
2178	/*
2179	$(eval $(def_target_source_rule))
2180	*/
2181	pVar = kbuild_get_recursive_variable("def_target_source_rule");
2182	pszVal = variable_expand_string_2 (o, pVar->value, pVar->value_length, &psz);
2183	assert(!((size_t)pszVal & 3));
2184
2185	install_variable_buffer(&pszSavedVarBuf, &cchSavedVarBuf);
2186	eval_buffer(pszVal, psz);
2187	restore_variable_buffer(pszSavedVarBuf, cchSavedVarBuf);
2188
2189	kbuild_put_sdks(&Sdks);
2190	(void)pszFuncName;
2191
2192	*pszVal = '\0';
2193	return pszVal;
2194	}
2195
2196	/*
2197
2198	## Inherit one template property in a non-accumulative manner.
2199	# @param $(prop) Property name
2200	# @param $(target) Target name
2201	# @todo fix the precedence order for some properties.
2202	define def_inherit_template_one
2203	ifdef TEMPLATE_$($(target)_TEMPLATE)_$(prop)
2204	ifndef $(target)_$(prop)
2205	$(target)_$(prop) := $(TEMPLATE_$($(target)_TEMPLATE)_$(prop))
2206	endif
2207	endif
2208	ifdef TEMPLATE_$($(target)_TEMPLATE)_$(prop).$(bld_trg)
2209	ifndef $(target)_$(prop).$(bld_trg)
2210	$(target)_$(prop).$(bld_trg) := $(TEMPLATE_$($(target)_TEMPLATE)_$(prop).$(bld_trg))
2211	endif
2212	endif
2213	ifdef TEMPLATE_$($(target)_TEMPLATE)_$(prop).$(bld_trg).$(bld_trg_arch)
2214	ifndef $(target)_$(prop).$(bld_trg).$(bld_trg_arch)
2215	$(target)_$(prop).$(bld_trg).$(bld_trg_arch) := $(TEMPLATE_$($(target)_TEMPLATE)_$(prop).$(bld_trg).$(bld_trg_arch))
2216	endif
2217	endif
2218	ifdef TEMPLATE_$($(target)_TEMPLATE)_$(prop).$(bld_trg_arch)
2219	ifndef $(target)_$(prop).$(bld_trg_arch)
2220	$(target)_$(prop).$(bld_trg_arch) := $(TEMPLATE_$($(target)_TEMPLATE)_$(prop).$(bld_trg_arch))
2221	endif
2222	endif
2223	ifdef TEMPLATE_$($(target)_TEMPLATE)_$(prop).$(bld_trg_cpu)
2224	ifndef $(target)_$(prop).$(bld_trg_cpu)
2225	$(target)_$(prop).$(bld_trg_cpu) := $(TEMPLATE_$($(target)_TEMPLATE)_$(prop).$(bld_trg_cpu))
2226	endif
2227	endif
2228	endef
2229
2230	## Inherit one template property in a non-accumulative manner, deferred expansion.
2231	# @param 1: $(prop) Property name
2232	# @param 2: $(target) Target name
2233	# @todo fix the precedence order for some properties.
2234	# @remark this define relies on double evaluation
2235	define def_inherit_template_one_deferred
2236	ifdef TEMPLATE_$($(target)_TEMPLATE)_$(prop)
2237	ifndef $(target)_$(prop)
2238	$(target)_$(prop) = $$(TEMPLATE_$($(target)_TEMPLATE)_$(prop))
2239	endif
2240	endif
2241	ifdef TEMPLATE_$($(target)_TEMPLATE)_$(prop).$(bld_trg)
2242	ifndef $(target)_$(prop).$(bld_trg)
2243	$(target)_$(prop).$(bld_trg) = $$(TEMPLATE_$($(target)_TEMPLATE)_$(prop).$(bld_trg))
2244	endif
2245	endif
2246	ifdef TEMPLATE_$($(target)_TEMPLATE)_$(prop).$(bld_trg).$(bld_trg_arch)
2247	ifndef $(target)_$(prop).$(bld_trg).$(bld_trg_arch)
2248	$(target)_$(prop).$(bld_trg).$(bld_trg_arch) = $$(TEMPLATE_$($(target)_TEMPLATE)_$(prop).$(bld_trg).$(bld_trg_arch))
2249	endif
2250	endif
2251	ifdef TEMPLATE_$($(target)_TEMPLATE)_$(prop).$(bld_trg_arch)
2252	ifndef $(target)_$(prop).$(bld_trg_arch)
2253	$(target)_$(prop).$(bld_trg_arch) = $$(TEMPLATE_$($(target)_TEMPLATE)_$(prop).$(bld_trg_arch))
2254	endif
2255	endif
2256	ifdef TEMPLATE_$($(target)_TEMPLATE)_$(prop).$(bld_trg_cpu)
2257	ifndef $(target)_$(prop).$(bld_trg_cpu)
2258	$(target)_$(prop).$(bld_trg_cpu) = $$(TEMPLATE_$($(target)_TEMPLATE)_$(prop).$(bld_trg_cpu))
2259	endif
2260	endif
2261	endef
2262
2263	## Inherit one acculumlative template property where the 'most significant' items are at the left end.
2264	# @param $(prop) Property name
2265	# @param $(target) Target name
2266	define def_inherit_template_one_accumulate_l
2267	ifdef TEMPLATE_$($(target)_TEMPLATE)_$(prop)
2268	ifeq ($$(flavor $(target)_$(prop)),simple)
2269	$$(evalcall2 def_simple_2_recursive,$(target)_$(prop))
2270	endif
2271	$(target)_$(prop) += $$(TEMPLATE_$($(target)_TEMPLATE)_$(prop))
2272	endif
2273	ifdef TEMPLATE_$($(target)_TEMPLATE)_$(prop).$(KBUILD_TYPE)
2274	ifeq ($$(flavor $(target)_$(prop).$(KBUILD_TYPE)),simple)
2275	$$(evalcall2 def_simple_2_recursive,$(target)_$(prop).$(KBUILD_TYPE))
2276	endif
2277	$(target)_$(prop).$(KBUILD_TYPE) += $$(TEMPLATE_$($(target)_TEMPLATE)_$(prop).$(KBUILD_TYPE))
2278	endif
2279	ifdef TEMPLATE_$($(target)_TEMPLATE)_$(prop).$(bld_trg)
2280	ifeq ($$(flavor $(target)_$(prop).$(bld_trg)),simple)
2281	$$(evalcall2 def_simple_2_recursive,$(target)_$(prop).$(bld_trg))
2282	endif
2283	$(target)_$(prop).$(bld_trg) += $$(TEMPLATE_$($(target)_TEMPLATE)_$(prop).$(bld_trg))
2284	endif
2285	ifdef TEMPLATE_$($(target)_TEMPLATE)_$(prop).$(bld_trg).$(bld_trg_arch)
2286	ifeq ($$(flavor $(target)_$(prop).$(bld_trg).$(bld_trg_arch)),simple)
2287	$$(evalcall2 def_simple_2_recursive,$(target)_$(prop).$(bld_trg).$(bld_trg_arch))
2288	endif
2289	$(target)_$(prop).$(bld_trg).$(bld_trg_arch) += $$(TEMPLATE_$($(target)_TEMPLATE)_$(prop).$(bld_trg).$(bld_trg_arch))
2290	endif
2291	ifdef TEMPLATE_$($(target)_TEMPLATE)_$(prop).$(bld_trg_cpu)
2292	ifeq ($$(flavor $(target)_$(prop).$(bld_trg_cpu)),simple)
2293	$$(evalcall2 def_simple_2_recursive,$(target)_$(prop).$(bld_trg_cpu))
2294	endif
2295	$(target)_$(prop).$(bld_trg_cpu) += $$(TEMPLATE_$($(target)_TEMPLATE)_$(prop).$(bld_trg_cpu))
2296	endif
2297	ifdef TEMPLATE_$($(target)_TEMPLATE)_$(prop).$(bld_trg_arch)
2298	ifeq ($$(flavor $(target)_$(prop).$(bld_trg_arch)),simple)
2299	$$(evalcall2 def_simple_2_recursive,$(target)_$(prop).$(bld_trg_arch))
2300	endif
2301	$(target)_$(prop).$(bld_trg_arch) += $$(TEMPLATE_$($(target)_TEMPLATE)_$(prop).$(bld_trg_arch))
2302	endif
2303	endef
2304
2305	## Inherit one acculumlative template property where the 'most significant' items are at the right end.
2306	# @param $(prop) Property name
2307	# @param $(target) Target name
2308	define def_inherit_template_one_accumulate_r
2309	ifdef TEMPLATE_$($(target)_TEMPLATE)_$(prop)
2310	ifeq ($$(flavor $(target)_$(prop)),simple)
2311	$$(evalcall2 def_simple_2_recursive,$(target)_$(prop))
2312	endif
2313	$(target)_$(prop) <=$$(TEMPLATE_$($(target)_TEMPLATE)_$(prop))
2314	endif
2315	ifdef TEMPLATE_$($(target)_TEMPLATE)_$(prop).$(KBUILD_TYPE)
2316	ifeq ($$(flavor $(target)_$(prop).$(KBUILD_TYPE)),simple)
2317	$$(evalcall2 def_simple_2_recursive,$(target)_$(prop).$(KBUILD_TYPE))
2318	endif
2319	$(target)_$(prop).$(KBUILD_TYPE) <=$$(TEMPLATE_$($(target)_TEMPLATE)_$(prop).$(KBUILD_TYPE))
2320	endif
2321	ifdef TEMPLATE_$($(target)_TEMPLATE)_$(prop).$(bld_trg)
2322	ifeq ($$(flavor $(target)_$(prop).$(bld_trg)),simple)
2323	$$(evalcall2 def_simple_2_recursive,$(target)_$(prop).$(bld_trg))
2324	endif
2325	$(target)_$(prop).$(bld_trg) <=$$(TEMPLATE_$($(target)_TEMPLATE)_$(prop).$(bld_trg))
2326	endif
2327	ifdef TEMPLATE_$($(target)_TEMPLATE)_$(prop).$(bld_trg).$(bld_trg_arch)
2328	ifeq ($$(flavor $(target)_$(prop).$(bld_trg).$(bld_trg_arch)),simple)
2329	$$(evalcall2 def_simple_2_recursive,$(target)_$(prop).$(bld_trg).$(bld_trg_arch))
2330	endif
2331	$(target)_$(prop).$(bld_trg).$(bld_trg_arch) <=$$(TEMPLATE_$($(target)_TEMPLATE)_$(prop).$(bld_trg).$(bld_trg_arch))
2332	endif
2333	ifdef TEMPLATE_$($(target)_TEMPLATE)_$(prop).$(bld_trg_cpu)
2334	ifeq ($$(flavor $(target)_$(prop).$(bld_trg_cpu)),simple)
2335	$$(evalcall2 def_simple_2_recursive,$(target)_$(prop).$(bld_trg_cpu))
2336	endif
2337	$(target)_$(prop).$(bld_trg_cpu) <=$$(TEMPLATE_$($(target)_TEMPLATE)_$(prop).$(bld_trg_cpu))
2338	endif
2339	ifdef TEMPLATE_$($(target)_TEMPLATE)_$(prop).$(bld_trg_arch)
2340	ifeq ($$(flavor $(target)_$(prop).$(bld_trg_arch)),simple)
2341	$$(evalcall2 def_simple_2_recursive,$(target)_$(prop).$(bld_trg_arch))
2342	endif
2343	$(target)_$(prop).$(bld_trg_arch) <=$$(TEMPLATE_$($(target)_TEMPLATE)_$(prop).$(bld_trg_arch))
2344	endif
2345	endef
2346
2347
2348	## Inherit template properties for on target.
2349	# @param $(target) Target name.
2350	define def_inherit_template
2351	# sanity check.
2352	ifdef _$(target)_ALREADY_PROCESSED
2353	$(error kBuild: The target $(target) appears more than once in the target lists! Please correct the makefile(s))
2354	endif
2355	_$(target)_ALREADY_PROCESSED := 1
2356
2357	# Inherit any default template.
2358	ifdef TEMPLATE
2359	ifeq ($($(target)_TEMPLATE),)
2360	$(eval $(target)_TEMPLATE:=$(TEMPLATE))
2361	endif
2362	endif
2363	# Expand the template if specified.
2364	ifneq ($($(target)_TEMPLATE),)
2365	$(foreach prop,$(PROPS_SINGLE),$(evalval def_inherit_template_one))
2366	$(foreach prop,$(PROPS_DEFERRED),$(eval $(def_inherit_template_one_deferred))) # exploits the 2 evaluation, so no value!
2367	$(foreach prop,$(PROPS_ACCUMULATE_L),$(eval $(def_inherit_template_one_accumulate_l))) # += works fine without value
2368	$(foreach prop,$(PROPS_ACCUMULATE_R),$(eval $(def_inherit_template_one_accumulate_r))) # use <= (kmk addition)
2369	endif
2370	endef
2371
2372
2373	Invoked like this:
2374	$(kb-exp-tmpl 1,$(_ALL_TARGET_TARGETS),$(KBUILD_TARGET),$(KBUILD_TARGET_ARCH),$(KBUILD_TARGET_CPU),$(KBUILD_TYPE))
2375	*/
2376	char *
2377	func_kbuild_expand_template(char o, char argv, const char pszFuncName)
2378	{
2379	const char *pszVersion = argv[0];
2380	const char *pszBldTrg = argv[2];
2381	const char *pszBldTrgArch = argv[3];
2382	const char *pszBldTrgCpu = argv[4];
2383	const char *pszBldType = argv[5];
2384	size_t cchBldTrg = strlen(pszBldTrg);
2385	size_t cchBldTrgArch = strlen(pszBldTrgArch);
2386	size_t cchBldTrgCpu = strlen(pszBldTrgCpu);
2387	size_t cchBldType = strlen(pszBldType);
2388	size_t cchMaxBld = cchBldTrg + cchBldTrgArch + cchBldTrgCpu + cchBldType; /* too big, but so what. */
2389	struct kbet_key
2390	{
2391	unsigned int cch;
2392	char *psz;
2393	} aKeys[6];
2394	unsigned int const cKeys = 6;
2395	unsigned int iKey;
2396	struct variable *pDefTemplate;
2397	struct variable *pProps;
2398	struct kbet_prop
2399	{
2400	const char *pch;
2401	unsigned int cch;
2402	enum kbet_prop_enum { kPropSingle, kPropDeferred, kPropAccumulateL, kPropAccumulateR }
2403	enmType;
2404	} *paProps;
2405	unsigned int cProps;
2406	unsigned int iProp;
2407	size_t cchMaxProp;
2408	struct variable *pVarTrg;
2409	struct variable *pVarSrc;
2410	const char *pszIter;
2411	const char *pszTarget;
2412	unsigned int cchTarget;
2413	char *pszSrc = 0;
2414	char *pszSrcRef = 0;
2415	char *pszSrcBuf = 0;
2416	size_t cchSrcBuf = 0;
2417	char *pszTrg = 0;
2418	size_t cchTrg = 0;
2419
2420	/*
2421	* Validate input.
2422	*/
2423	if (pszVersion[0] != '1' \|\| pszVersion[1])
2424	fatal(NULL, "%s: Unsupported version `%s'", pszFuncName, pszVersion);
2425
2426	if (!cchBldTrg)
2427	fatal(NULL, "%s: missing bldtrg", pszFuncName);
2428
2429	if (!cchBldTrgArch)
2430	fatal(NULL, "%s: missing bld_trg_arch", pszFuncName);
2431
2432	if (!cchBldTrgCpu)
2433	fatal(NULL, "%s: missing bld_trg_cpu", pszFuncName);
2434
2435	if (!cchBldType)
2436	fatal(NULL, "%s: missing bld_type", pszFuncName);
2437
2438	/*
2439	* Prepare the keywords, prepending dots for quicker copying.
2440	* This allows for an inner loop when processing properties, saving code
2441	* at the expense of a few xmallocs.
2442	*/
2443	/* the first entry is empty. */
2444	aKeys[0].cch = 0;
2445	aKeys[0].psz = NULL;
2446
2447	aKeys[1].cch = cchBldType + 1;
2448	aKeys[1].psz = xmalloc (aKeys[1].cch + 1);
2449	aKeys[1].psz[0] = '.';
2450	memcpy(aKeys[1].psz + 1, pszBldType, cchBldType + 1);
2451
2452	aKeys[2].cch = cchBldTrg + 1;
2453	aKeys[2].psz = xmalloc (aKeys[2].cch + 1);
2454	aKeys[2].psz[0] = '.';
2455	memcpy(aKeys[2].psz + 1, pszBldTrg, cchBldTrg + 1);
2456
2457	aKeys[3].cch = cchBldTrg + 1 + cchBldTrgArch + 1;
2458	aKeys[3].psz = xmalloc (aKeys[3].cch + 1);
2459	aKeys[3].psz[0] = '.';
2460	memcpy(aKeys[3].psz + 1, pszBldTrg, cchBldTrg);
2461	aKeys[3].psz[1 + cchBldTrg] = '.';
2462	memcpy(aKeys[3].psz + 1 + cchBldTrg + 1, pszBldTrgArch, cchBldTrgArch + 1);
2463
2464	aKeys[4].cch = cchBldTrgCpu + 1;
2465	aKeys[4].psz = xmalloc (aKeys[4].cch + 1);
2466	aKeys[4].psz[0] = '.';
2467	memcpy(aKeys[4].psz + 1, pszBldTrgCpu, cchBldTrgCpu + 1);
2468
2469	aKeys[5].cch = cchBldTrgArch + 1;
2470	aKeys[5].psz = xmalloc (aKeys[5].cch + 1);
2471	aKeys[5].psz[0] = '.';
2472	memcpy(aKeys[5].psz + 1, pszBldTrgArch, cchBldTrgArch + 1);
2473
2474
2475	/*
2476	* Prepare the properties, folding them into an array.
2477	* This way we won't have to reparse them for each an every target, though
2478	* it comes at the expense of one or more heap calls.
2479	*/
2480	#define PROP_ALLOC_INC 128
2481	iProp = 0;
2482	cProps = PROP_ALLOC_INC;
2483	paProps = xmalloc(sizeof(pProps) cProps);
2484
2485	pProps = kbuild_get_variable_n(ST("PROPS_SINGLE"));
2486	pszIter = pProps->value;
2487	while ((paProps[iProp].pch = find_next_token(&pszIter, &paProps[iProp].cch)))
2488	{
2489	paProps[iProp].enmType = kPropSingle;
2490	if (++iProp >= cProps)
2491	{
2492	cProps += PROP_ALLOC_INC;
2493	paProps = xrealloc(paProps, sizeof(paProps) cProps);
2494	}
2495
2496	}
2497
2498	pProps = kbuild_get_variable_n(ST("PROPS_DEFERRED"));
2499	pszIter = pProps->value;
2500	while ((paProps[iProp].pch = find_next_token(&pszIter, &paProps[iProp].cch)))
2501	{
2502	paProps[iProp].enmType = kPropDeferred;
2503	if (++iProp >= cProps)
2504	{
2505	cProps += PROP_ALLOC_INC;
2506	paProps = xrealloc(paProps, sizeof(paProps) cProps);
2507	}
2508	}
2509
2510	pProps = kbuild_get_variable_n(ST("PROPS_ACCUMULATE_L"));
2511	pszIter = pProps->value;
2512	while ((paProps[iProp].pch = find_next_token(&pszIter, &paProps[iProp].cch)))
2513	{
2514	paProps[iProp].enmType = kPropAccumulateL;
2515	if (++iProp >= cProps)
2516	{
2517	cProps += PROP_ALLOC_INC;
2518	paProps = xrealloc(paProps, sizeof(paProps) cProps);
2519	}
2520	}
2521
2522	pProps = kbuild_get_variable_n(ST("PROPS_ACCUMULATE_R"));
2523	pszIter = pProps->value;
2524	while ((paProps[iProp].pch = find_next_token(&pszIter, &paProps[iProp].cch)))
2525	{
2526	paProps[iProp].enmType = kPropAccumulateR;
2527	if (++iProp >= cProps)
2528	{
2529	cProps += PROP_ALLOC_INC;
2530	paProps = xrealloc(paProps, sizeof(paProps) cProps);
2531	}
2532	}
2533	#undef PROP_ALLOC_INC
2534	cProps = iProp;
2535
2536	/* find the max prop length. */
2537	cchMaxProp = paProps[0].cch;
2538	while (--iProp > 0)
2539	if (paProps[iProp].cch > cchMaxProp)
2540	cchMaxProp = paProps[iProp].cch;
2541
2542	/*
2543	* Query and prepare (strip) the default template
2544	* (given by the TEMPLATE variable).
2545	*/
2546	pDefTemplate = kbuild_lookup_variable_n(ST("TEMPLATE"));
2547	if (pDefTemplate)
2548	{
2549	if ( pDefTemplate->value_length
2550	&& ( isspace(pDefTemplate->value[0])
2551	\|\| isspace(pDefTemplate->value[pDefTemplate->value_length - 1])))
2552	{
2553	unsigned int off;
2554	if (pDefTemplate->rdonly_val)
2555	fatal(NULL, "%s: TEMPLATE is read-only", pszFuncName);
2556
2557	/* head */
2558	for (off = 0; isspace(pDefTemplate->value[off]); off++)
2559	/* nothing */;
2560	if (off)
2561	{
2562	pDefTemplate->value_length -= off;
2563	memmove(pDefTemplate->value, pDefTemplate->value + off, pDefTemplate->value_length + 1);
2564	}
2565
2566	/* tail */
2567	off = pDefTemplate->value_length;
2568	while (off > 0 && isspace(pDefTemplate->value[off - 1]))
2569	off--;
2570	pDefTemplate->value_length = off;
2571	pDefTemplate->value[off] = '\0';
2572	}
2573
2574	if (!pDefTemplate->value_length)
2575	pDefTemplate = NULL;
2576	}
2577
2578	/*
2579	* Iterate the target list.
2580	*/
2581	pszIter = argv[1];
2582	while ((pszTarget = find_next_token(&pszIter, &cchTarget)))
2583	{
2584	char pszTrgProp, pszSrcProp;
2585	char pszTrgKey, pszSrcKey;
2586	struct variable *pTmpl;
2587	const char *pszTmpl;
2588	size_t cchTmpl, cchMax;
2589
2590	/* resize the target buffer. */
2591	cchMax = cchTarget + cchMaxProp + cchMaxBld + 10;
2592	if (cchTrg < cchMax)
2593	{
2594	cchTrg = (cchMax + 31U) & ~(size_t)31;
2595	pszTrg = xrealloc(pszTrg, cchTrg);
2596	}
2597
2598	/*
2599	* Query the TEMPLATE property, if not found or zero-length fall back on the default.
2600	*/
2601	memcpy(pszTrg, pszTarget, cchTarget);
2602	pszTrgProp = pszTrg + cchTarget;
2603	memcpy(pszTrgProp, "_TEMPLATE", sizeof("_TEMPLATE"));
2604	pszTrgProp++; /* after '_'. */
2605
2606	/** @todo Change this to a recursive lookup with simplification below. That
2607	* will allow target_TEMPLATE = $(NO_SUCH_TEMPLATE) instead of having
2608	* to use target_TEMPLATE = DUMMY */
2609	pTmpl = kbuild_lookup_variable_n(pszTrg, cchTarget + sizeof("_TEMPLATE") - 1);
2610	if (!pTmpl \|\| !pTmpl->value_length)
2611	{
2612	if (!pDefTemplate)
2613	continue; /* no template */
2614	pszTmpl = pDefTemplate->value;
2615	cchTmpl = pDefTemplate->value_length;
2616	}
2617	else
2618	{
2619	pszTmpl = pTmpl->value;
2620	cchTmpl = pTmpl->value_length;
2621	while (isspace(*pszTmpl))
2622	cchTmpl--, pszTmpl++;
2623	if (!cchTmpl)
2624	continue; /* no template */
2625	}
2626
2627	/* resize the source buffer. */
2628	cchMax = sizeof("TEMPLATE_") + cchTmpl + cchMaxProp + cchMaxBld + 10 + sizeof(void *);
2629	if (cchSrcBuf < cchMax)
2630	{
2631	cchSrcBuf = (cchMax + 31U) & ~(size_t)31;
2632	pszSrcBuf = xrealloc(pszSrcBuf, cchSrcBuf);
2633	pszSrc = pszSrcBuf + sizeof(void ); assert(sizeof(void ) >= 2);
2634	pszSrcRef = pszSrc - 2;
2635	pszSrcRef[0] = '$';
2636	pszSrcRef[1] = '(';
2637	}
2638
2639	/* prepare the source buffer */
2640	memcpy(pszSrc, "TEMPLATE_", sizeof("TEMPLATE_") - 1);
2641	pszSrcProp = pszSrc + sizeof("TEMPLATE_") - 1;
2642	memcpy(pszSrcProp, pszTmpl, cchTmpl);
2643	pszSrcProp += cchTmpl;
2644	*pszSrcProp++ = '_';
2645
2646	/*
2647	* Process properties.
2648	* Note! The single and deferred are handled in the same way now.
2649	*/
2650	#define BY_REF_LIMIT 64 /(cchSrcVar 4 > 64 ? cchSrcVar * 4 : 64)*/
2651
2652	for (iProp = 0; iProp < cProps; iProp++)
2653	{
2654	memcpy(pszTrgProp, paProps[iProp].pch, paProps[iProp].cch);
2655	pszTrgKey = pszTrgProp + paProps[iProp].cch;
2656
2657	memcpy(pszSrcProp, paProps[iProp].pch, paProps[iProp].cch);
2658	pszSrcKey = pszSrcProp + paProps[iProp].cch;
2659
2660	for (iKey = 0; iKey < cKeys; iKey++)
2661	{
2662	char *pszTrgEnd;
2663	size_t cchSrcVar;
2664
2665	/* lookup source, skip ahead if it doesn't exist. */
2666	memcpy(pszSrcKey, aKeys[iKey].psz, aKeys[iKey].cch);
2667	cchSrcVar = pszSrcKey - pszSrc + aKeys[iKey].cch;
2668	pszSrc[cchSrcVar] = '\0';
2669	pVarSrc = kbuild_query_recursive_variable_n(pszSrc, cchSrcVar);
2670	if (!pVarSrc)
2671	continue;
2672
2673	/* lookup target, skip ahead if it exists. */
2674	memcpy(pszTrgKey, aKeys[iKey].psz, aKeys[iKey].cch);
2675	pszTrgEnd = pszTrgKey + aKeys[iKey].cch;
2676	*pszTrgEnd = '\0';
2677	pVarTrg = kbuild_query_recursive_variable_n(pszTrg, pszTrgEnd - pszTrg);
2678
2679	switch (paProps[iProp].enmType)
2680	{
2681	case kPropAccumulateL:
2682	case kPropAccumulateR:
2683	if (pVarTrg)
2684	{
2685	/* Append to existing variable. If the source is recursive,
2686	or we append by reference, we'll have to make sure the
2687	target is recusive as well. */
2688	if ( !pVarTrg->recursive
2689	&& ( pVarSrc->value_length >= BY_REF_LIMIT
2690	\|\| pVarSrc->recursive))
2691	pVarTrg->recursive = 1;
2692
2693	if (pVarSrc->value_length < BY_REF_LIMIT)
2694	append_string_to_variable(pVarTrg, pVarSrc->value, pVarSrc->value_length,
2695	paProps[iProp].enmType == kPropAccumulateL /* append */);
2696	else
2697	{
2698	pszSrc[cchSrcVar] = ')';
2699	pszSrc[cchSrcVar + 1] = '\0';
2700	append_string_to_variable(pVarTrg, pszSrcRef, 2 + cchSrcVar + 1,
2701	paProps[iProp].enmType == kPropAccumulateL /* append */);
2702	}
2703	break;
2704	}
2705	/* else: the target variable doesn't exist, create it. */
2706	/* fall thru */
2707
2708	case kPropSingle:
2709	case kPropDeferred:
2710	if (pVarTrg)
2711	continue; /* skip ahead if it already exists. */
2712
2713	/* copy the variable if its short, otherwise reference it. */
2714	if (pVarSrc->value_length < BY_REF_LIMIT)
2715	define_variable_vl_global(pszTrg, pszTrgEnd - pszTrg,
2716	pVarSrc->value, pVarSrc->value_length,
2717	1 /* duplicate_value */,
2718	o_file,
2719	pVarSrc->recursive,
2720	NULL /* flocp */);
2721	else
2722	{
2723	pszSrc[cchSrcVar] = ')';
2724	pszSrc[cchSrcVar + 1] = '\0';
2725	define_variable_vl_global(pszTrg, pszTrgEnd - pszTrg,
2726	pszSrcRef, 2 + cchSrcVar + 1,
2727	1 /* duplicate_value */,
2728	o_file,
2729	1 /* recursive */,
2730	NULL /* flocp */);
2731	}
2732	break;
2733
2734	}
2735
2736	} /* foreach key */
2737	} /* foreach prop */
2738	#undef BY_REF_LIMIT
2739	} /* foreach target */
2740
2741	/*
2742	* Cleanup.
2743	*/
2744	free(pszSrcBuf);
2745	free(pszTrg);
2746	free(paProps);
2747	for (iKey = 1; iKey < cKeys; iKey++)
2748	free(aKeys[iKey].psz);
2749
2750	return o;
2751	}
2752
2753	#endif /* KMK_HELPERS */
2754

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source: kBuild/trunk/src/kmk/kbuild.c@ 2129

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