VBoxDef2LazyLoad.cpp@ 105352

Last change on this file since 105352 was 104213, checked in by vboxsync, 7 months ago
bldprogs/VBoxDef2LazyLoad: Get it working on linux.arm64/ELF, bugref:10391
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1	/* $Id: VBoxDef2LazyLoad.cpp 104213 2024-04-07 16:29:33Z vboxsync $ */
2	/** @file
3	* VBoxDef2LazyLoad - Lazy Library Loader Generator.
4	*
5	* @note Only tested on win.amd64 & darwin.amd64.
6	*/
7
8	/*
9	* Copyright (C) 2013-2023 Oracle and/or its affiliates.
10	*
11	* This file is part of VirtualBox base platform packages, as
12	* available from https://www.virtualbox.org.
13	*
14	* This program is free software; you can redistribute it and/or
15	* modify it under the terms of the GNU General Public License
16	* as published by the Free Software Foundation, in version 3 of the
17	* License.
18	*
19	* This program is distributed in the hope that it will be useful, but
20	* WITHOUT ANY WARRANTY; without even the implied warranty of
21	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
22	* General Public License for more details.
23	*
24	* You should have received a copy of the GNU General Public License
25	* along with this program; if not, see <https://www.gnu.org/licenses>.
26	*
27	* SPDX-License-Identifier: GPL-3.0-only
28	*/
29
30
31	/*********************************************************************************************************************************
32	* Header Files *
33	*********************************************************************************************************************************/
34	#include <ctype.h>
35	#include <stdio.h>
36	#include <string.h>
37	#include <stdlib.h>
38	#include <iprt/types.h>
39	#include <iprt/ldr.h> /* For RTLDRARCH. */
40
41
42	/*********************************************************************************************************************************
43	* Structures and Typedefs *
44	*********************************************************************************************************************************/
45	typedef struct MYEXPORT
46	{
47	struct MYEXPORT *pNext;
48	/** Pointer to unmangled name for stdcall (after szName), NULL if not. */
49	char *pszUnstdcallName;
50	/** Pointer to the exported name. */
51	char const *pszExportedNm;
52	unsigned uOrdinal;
53	/** NONAME. */
54	bool fNoName;
55	/** DATA symbol if true, otherwise function. */
56	bool fData;
57	char szName[1];
58	} MYEXPORT;
59	typedef MYEXPORT *PMYEXPORT;
60
61
62	/*********************************************************************************************************************************
63	* Global Variables *
64	*********************************************************************************************************************************/
65	/** @name Options
66	* @{ */
67	static const char *g_pszOutput = NULL;
68	static const char *g_pszLibrary = NULL;
69	static const char *g_apszInputs[8] = { NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL };
70	static unsigned g_cInputs = 0;
71	static bool g_fIgnoreData = true;
72	static bool g_fWithExplictLoadFunction = false;
73	static bool g_fSystemLibrary = false;
74	#if defined(RT_ARCH_AMD64)
75	static RTLDRARCH g_enmTarget = RTLDRARCH_AMD64;
76	#elif defined(RT_ARCH_X86)
77	static RTLDRARCH g_enmTarget = RTLDRARCH_X86_32;
78	#elif defined(RT_ARCH_ARM64)
79	static RTLDRARCH g_enmTarget = RTLDRARCH_ARM64;
80	#else
81	# error "Port me!"
82	#endif
83	/** @} */
84
85	/** Pointer to the export name list head. */
86	static PMYEXPORT g_pExpHead = NULL;
87	/** Pointer to the next pointer for insertion. */
88	static PMYEXPORT *g_ppExpNext = &g_pExpHead;
89
90
91
92	#if 0 /* unused */
93	static const char leftStrip(const char psz)
94	{
95	while (isspace(*psz))
96	psz++;
97	return psz;
98	}
99	#endif
100
101
102	static char leftStrip(char psz)
103	{
104	while (isspace(*psz))
105	psz++;
106	return psz;
107	}
108
109
110	static unsigned wordLength(const char *pszWord)
111	{
112	unsigned off = 0;
113	char ch;
114	while ( (ch = pszWord[off]) != '\0'
115	&& ch != '='
116	&& ch != ','
117	&& ch != ':'
118	&& !isspace(ch) )
119	off++;
120	return off;
121	}
122
123
124	/**
125	* Parses the module definition file, collecting export information.
126	*
127	* @returns RTEXITCODE_SUCCESS or RTEXITCODE_FAILURE, in the latter case full
128	* details has been displayed.
129	* @param pInput The input stream.
130	*/
131	static RTEXITCODE parseInputInner(FILE pInput, const char pszInput)
132	{
133	/*
134	* Process the file line-by-line.
135	*/
136	bool fInExports = false;
137	unsigned iLine = 0;
138	char szLine[16384];
139	while (fgets(szLine, sizeof(szLine), pInput))
140	{
141	iLine++;
142
143	/*
144	* Strip leading and trailing spaces from the line as well as
145	* trailing comments.
146	*/
147	char *psz = leftStrip(szLine);
148	if (*psz == ';')
149	continue; /* comment line. */
150
151	char *pszComment = strchr(psz, ';');
152	if (pszComment)
153	*pszComment = '\0';
154
155	unsigned cch = (unsigned)strlen(psz);
156	while (cch > 0 && (isspace(psz[cch - 1]) \|\| psz[cch - 1] == '\r' \|\| psz[cch - 1] == '\n'))
157	psz[--cch] = '\0';
158
159	if (!cch)
160	continue;
161
162	/*
163	* Check for known directives.
164	*/
165	size_t cchWord0 = wordLength(psz);
166	#define WORD_CMP(pszWord1, cchWord1, szWord2) \
167	( (cchWord1) == sizeof(szWord2) - 1 && memcmp(pszWord1, szWord2, sizeof(szWord2) - 1) == 0 )
168	if (WORD_CMP(psz, cchWord0, "EXPORTS"))
169	{
170	fInExports = true;
171
172	/* In case there is an export on the same line. (Really allowed?) */
173	psz = leftStrip(psz + sizeof("EXPORTS") - 1);
174	if (!*psz)
175	continue;
176	}
177	/* Directives that we don't care about, but need to catch in order to
178	terminate the EXPORTS section in a timely manner. */
179	else if ( WORD_CMP(psz, cchWord0, "NAME")
180	\|\| WORD_CMP(psz, cchWord0, "LIBRARY")
181	\|\| WORD_CMP(psz, cchWord0, "DESCRIPTION")
182	\|\| WORD_CMP(psz, cchWord0, "STACKSIZE")
183	\|\| WORD_CMP(psz, cchWord0, "SECTIONS")
184	\|\| WORD_CMP(psz, cchWord0, "SEGMENTS")
185	\|\| WORD_CMP(psz, cchWord0, "VERSION")
186	)
187	{
188	fInExports = false;
189	}
190
191	/*
192	* Process exports:
193	* entryname[=internalname] [@ordinal[ ][NONAME]] [DATA] [PRIVATE]
194	*/
195	if (fInExports)
196	{
197	const char *pchName = psz;
198	unsigned cchName = wordLength(psz);
199
200	psz = leftStrip(psz + cchName);
201	if (*psz == '=')
202	{
203	psz = leftStrip(psz + 1);
204	psz = leftStrip(psz + wordLength(psz));
205	}
206
207	bool fNoName = false;
208	unsigned uOrdinal = ~0U;
209	if (*psz == '@')
210	{
211	psz++;
212	if (!isdigit(*psz))
213	{
214	fprintf(stderr, "%s:%u: error: Invalid ordinal spec.\n", pszInput, iLine);
215	return RTEXITCODE_FAILURE;
216	}
217	uOrdinal = *psz++ - '0';
218	while (isdigit(*psz))
219	{
220	uOrdinal *= 10;
221	uOrdinal += *psz++ - '0';
222	}
223	psz = leftStrip(psz);
224	cch = wordLength(psz);
225	if (WORD_CMP(psz, cch, "NONAME"))
226	{
227	fNoName = true;
228	psz = leftStrip(psz + cch);
229	}
230	}
231
232	bool fData = false;
233	while (*psz)
234	{
235	cch = wordLength(psz);
236	if (WORD_CMP(psz, cch, "DATA"))
237	{
238	fData = true;
239	if (!g_fIgnoreData)
240	{
241	fprintf(stderr, "%s:%u: error: Cannot process DATA export '%.*s'.\n",
242	pszInput, iLine, cchName, pchName);
243	return RTEXITCODE_SUCCESS;
244	}
245	}
246	else if (WORD_CMP(psz, cch, "PRIVATE"))
247	{
248	fprintf(stderr, "%s:%u: error: Cannot process PRIVATE export '%.*s'.\n",
249	pszInput, iLine, cchName, pchName);
250	return RTEXITCODE_SUCCESS;
251	}
252	else
253	{
254	fprintf(stderr, "%s:%u: error: Unknown keyword: %.*s.\n", pszInput, iLine, cch, psz);
255	return RTEXITCODE_FAILURE;
256	}
257	psz = leftStrip(psz + cch);
258	}
259
260	/*
261	* Check for stdcall mangling.
262	*/
263	size_t cbExp = sizeof(MYEXPORT) + cchName;
264	unsigned cchStdcall = 0;
265	if (cchName > 3 && *pchName == '_' && isdigit(pchName[cchName - 1]))
266	{
267	if (cchName > 3 && pchName[cchName - 2] == '@')
268	cchStdcall = 2;
269	else if (cchName > 4 && pchName[cchName - 3] == '@' && isdigit(pchName[cchName - 2]))
270	cchStdcall = 3;
271	if (cchStdcall)
272	cbExp += cchName - 1 - cchStdcall;
273	}
274
275	/*
276	* Add the export.
277	*/
278	PMYEXPORT pExp = (PMYEXPORT)malloc(cbExp);
279	if (!pExp)
280	{
281	fprintf(stderr, "%s:%u: error: Out of memory.\n", pszInput, iLine);
282	return RTEXITCODE_FAILURE;
283	}
284	memcpy(pExp->szName, pchName, cchName);
285	pExp->szName[cchName] = '\0';
286	if (!cchStdcall)
287	{
288	pExp->pszUnstdcallName = NULL;
289	pExp->pszExportedNm = pExp->szName;
290	}
291	else
292	{
293	pExp->pszUnstdcallName = &pExp->szName[cchName + 1];
294	memcpy(pExp->pszUnstdcallName, pchName + 1, cchName - 1 - cchStdcall);
295	pExp->pszUnstdcallName[cchName - 1 - cchStdcall] = '\0';
296	pExp->pszExportedNm = pExp->pszUnstdcallName;
297	}
298	pExp->uOrdinal = uOrdinal;
299	pExp->fNoName = fNoName;
300	pExp->fData = fData;
301	pExp->pNext = NULL;
302	*g_ppExpNext = pExp;
303	g_ppExpNext = &pExp->pNext;
304	}
305	}
306
307	/*
308	* Why did we quit the loop, EOF or error?
309	*/
310	if (feof(pInput))
311	return RTEXITCODE_SUCCESS;
312	fprintf(stderr, "error: Incompletely read '%s' (iLine=%u).\n", pszInput, iLine);
313	return RTEXITCODE_FAILURE;
314	}
315
316
317	/**
318	* Parses a_apszInputs, populating the list pointed to by g_pExpHead.
319	*
320	* @returns RTEXITCODE_SUCCESS or RTEXITCODE_FAILURE, in the latter case full
321	* details has been displayed.
322	*/
323	static RTEXITCODE parseInputs(void)
324	{
325	RTEXITCODE rcExit = RTEXITCODE_SUCCESS;
326	for (unsigned i = 0; i < g_cInputs; i++)
327	{
328	FILE *pInput = fopen(g_apszInputs[i], "r");
329	if (pInput)
330	{
331	RTEXITCODE rcExit2 = parseInputInner(pInput, g_apszInputs[i]);
332	fclose(pInput);
333	if (rcExit2 == RTEXITCODE_SUCCESS && !g_pExpHead)
334	{
335	fprintf(stderr, "error: Found no exports in '%s'.\n", g_apszInputs[i]);
336	rcExit2 = RTEXITCODE_FAILURE;
337	}
338	if (rcExit2 != RTEXITCODE_SUCCESS)
339	rcExit = rcExit2;
340	}
341	else
342	{
343	fprintf(stderr, "error: Failed to open '%s' for reading.\n", g_apszInputs[i]);
344	rcExit = RTEXITCODE_FAILURE;
345	}
346	}
347	return rcExit;
348	}
349
350
351	/**
352	* Generates the assembly source code for AMD64 and x86, writing it
353	* to @a pOutput.
354	*
355	* @returns RTEXITCODE_SUCCESS or RTEXITCODE_FAILURE, in the latter case full
356	* details has been displayed.
357	* @param pOutput The output stream (caller checks it for errors
358	* when closing).
359	*/
360	static RTEXITCODE generateOutputInnerX86AndAMD64(FILE *pOutput)
361	{
362	fprintf(pOutput, ";;\n");
363	for (unsigned i = 0; i < g_cInputs; i++)
364	fprintf(pOutput, ";; Autogenerated from '%s'.\n", g_apszInputs[i]);
365
366	fprintf(pOutput,
367	";; DO NOT EDIT!\n"
368	";;\n"
369	"\n"
370	"\n"
371	"%%include \"iprt/asmdefs.mac\"\n"
372	"\n"
373	"\n");
374
375	/*
376	* Put the thunks first for alignment and other reasons. It's the hot part of the code.
377	*/
378	fprintf(pOutput,
379	";\n"
380	"; Thunks.\n"
381	";\n"
382	"BEGINCODE\n");
383	for (PMYEXPORT pExp = g_pExpHead; pExp; pExp = pExp->pNext)
384	if (pExp->fData)
385	fprintf(pOutput,
386	"BEGINPROC LazyGetPtr_%s\n"
387	" mov xAX, [NAME(g_LazyPtr_%s) xWrtRIP]\n"
388	" test xAX, xAX\n"
389	" jz ___LazyLoad___%s\n"
390	" ret\n"
391	"ENDPROC LazyGetPtr_%s\n",
392	pExp->szName, pExp->szName, pExp->szName, pExp->szName);
393	else if (!pExp->pszUnstdcallName)
394	fprintf(pOutput,
395	"BEGINPROC %s\n"
396	" jmp RTCCPTR_PRE [NAME(g_pfn%s) xWrtRIP]\n"
397	"ENDPROC %s\n",
398	pExp->szName, pExp->szName, pExp->szName);
399	else
400	fprintf(pOutput,
401	"%%ifdef RT_ARCH_X86\n"
402	"global %s\n"
403	"%s:\n"
404	" jmp RTCCPTR_PRE [NAME(g_pfn%s) xWrtRIP]\n"
405	"%%else\n"
406	"BEGINPROC %s\n"
407	" jmp RTCCPTR_PRE [NAME(g_pfn%s) xWrtRIP]\n"
408	"ENDPROC %s\n"
409	"%%endif\n",
410	pExp->szName, pExp->szName, pExp->pszUnstdcallName,
411	pExp->pszUnstdcallName, pExp->pszUnstdcallName, pExp->pszUnstdcallName);
412
413	fprintf(pOutput,
414	"\n"
415	"\n");
416
417	/*
418	* Import pointers
419	*/
420	fprintf(pOutput,
421	";\n"
422	"; Import pointers. Initialized to point to lazy loading stubs.\n"
423	";\n"
424	"BEGINDATA\n"
425	"g_apfnImports:\n");
426	for (PMYEXPORT pExp = g_pExpHead; pExp; pExp = pExp->pNext)
427	if (pExp->fData)
428	fprintf(pOutput,
429	"%%ifdef ASM_FORMAT_PE\n"
430	";@todo\n"
431	"%%endif\n"
432	"global NAME(g_LazyPtr_%s)\n"
433	"NAME(g_LazyPtr_%s): RTCCPTR_DEF 0\n",
434	pExp->pszExportedNm, pExp->pszExportedNm);
435	else if (pExp->pszUnstdcallName)
436	fprintf(pOutput,
437	"%%ifdef ASM_FORMAT_PE\n"
438	" %%ifdef RT_ARCH_X86\n"
439	"global __imp_%s\n"
440	"__imp_%s:\n"
441	" %%else\n"
442	"global __imp_%s\n"
443	"__imp_%s:\n"
444	" %%endif\n"
445	"%%endif\n"
446	"NAME(g_pfn%s) RTCCPTR_DEF ___LazyLoad___%s\n"
447	"\n",
448	pExp->szName,
449	pExp->szName,
450	pExp->pszUnstdcallName,
451	pExp->pszUnstdcallName,
452	pExp->pszExportedNm,
453	pExp->pszExportedNm);
454	else
455	fprintf(pOutput,
456	"%%ifdef ASM_FORMAT_PE\n"
457	"global __imp_%s\n"
458	"__imp_%s:\n"
459	"%%endif\n"
460	"NAME(g_pfn%s) RTCCPTR_DEF ___LazyLoad___%s\n"
461	"\n",
462	pExp->szName,
463	pExp->szName,
464	pExp->pszExportedNm,
465	pExp->pszExportedNm);
466	fprintf(pOutput,
467	"RTCCPTR_DEF 0 ; Terminator entry for traversal.\n"
468	"\n"
469	"\n");
470
471	/*
472	* Now for the less important stuff, starting with the names.
473	*
474	* We keep the names separate so we can traverse them in parallel to
475	* g_apfnImports in the load-everything routine further down.
476	*/
477	fprintf(pOutput,
478	";\n"
479	"; Imported names.\n"
480	";\n"
481	"BEGINCODE\n"
482	"g_szLibrary: db '%s',0\n"
483	"\n"
484	"g_szzNames:\n",
485	g_pszLibrary);
486	for (PMYEXPORT pExp = g_pExpHead; pExp; pExp = pExp->pNext)
487	if (!pExp->fNoName)
488	fprintf(pOutput, " g_sz%s:\n db '%s',0\n", pExp->pszExportedNm, pExp->pszExportedNm);
489	else
490	fprintf(pOutput, " g_sz%s:\n db '#%u',0\n", pExp->pszExportedNm, pExp->uOrdinal);
491	fprintf(pOutput,
492	"g_EndOfNames: db 0\n"
493	"\n"
494	"g_szFailLoadFmt: db 'Lazy loader failed to load \"%%s\": %%Rrc', 10, 0\n"
495	"g_szFailResolveFmt: db 'Lazy loader failed to resolve symbol \"%%s\" in \"%%s\": %%Rrc', 10, 0\n"
496	"\n"
497	"\n");
498
499	/*
500	* The per import lazy load code.
501	*/
502	fprintf(pOutput,
503	";\n"
504	"; Lazy load+resolve stubs.\n"
505	";\n"
506	"BEGINCODE\n");
507	for (PMYEXPORT pExp = g_pExpHead; pExp; pExp = pExp->pNext)
508	{
509	if (!pExp->fNoName)
510	fprintf(pOutput,
511	"___LazyLoad___%s:\n"
512	/* "int3\n" */
513	"%%ifdef RT_ARCH_AMD64\n"
514	" lea rax, [g_sz%s wrt rip]\n"
515	" lea r10, [NAME(%s%s) wrt rip]\n"
516	" call LazyLoadResolver\n"
517	"%%elifdef RT_ARCH_X86\n"
518	" push g_sz%s\n"
519	" push NAME(%s%s)\n"
520	" call LazyLoadResolver\n"
521	" add esp, 8h\n"
522	"%%else\n"
523	" %%error \"Unsupported architecture\"\n"
524	"%%endif\n"
525	,
526	pExp->pszExportedNm,
527	pExp->pszExportedNm,
528	!pExp->fData ? "g_pfn" : "g_LazyPtr_", pExp->pszExportedNm,
529	pExp->pszExportedNm,
530	!pExp->fData ? "g_pfn" : "g_LazyPtr_", pExp->pszExportedNm);
531	else
532	fprintf(pOutput,
533	"___LazyLoad___%s:\n"
534	/* "int3\n" */
535	"%%ifdef RT_ARCH_AMD64\n"
536	" mov eax, %u\n"
537	" lea r10, [NAME(%s%s) wrt rip]\n"
538	" call LazyLoadResolver\n"
539	"%%elifdef RT_ARCH_X86\n"
540	" push %u\n"
541	" push NAME(%s%s)\n"
542	" call LazyLoadResolver\n"
543	" add esp, 8h\n"
544	"%%else\n"
545	" %%error \"Unsupported architecture\"\n"
546	"%%endif\n"
547	,
548	pExp->pszExportedNm,
549	pExp->uOrdinal,
550	!pExp->fData ? "g_pfn" : "g_LazyPtr_", pExp->pszExportedNm,
551	pExp->uOrdinal,
552	!pExp->fData ? "g_pfn" : "g_LazyPtr_", pExp->pszExportedNm);
553	if (pExp->fData)
554	fprintf(pOutput, " jmp NAME(LazyGetPtr_%s)\n", pExp->szName);
555	else if (!pExp->pszUnstdcallName)
556	fprintf(pOutput, " jmp NAME(%s)\n", pExp->szName);
557	else
558	fprintf(pOutput,
559	"%%ifdef RT_ARCH_X86\n"
560	" jmp %s\n"
561	"%%else\n"
562	" jmp NAME(%s)\n"
563	"%%endif\n"
564	,
565	pExp->szName, pExp->pszUnstdcallName);
566	fprintf(pOutput, "\n");
567	}
568	fprintf(pOutput,
569	"\n"
570	"\n"
571	"\n");
572
573	/*
574	* The code that does the loading and resolving.
575	*/
576	fprintf(pOutput,
577	";\n"
578	"; The module handle.\n"
579	";\n"
580	"BEGINDATA\n"
581	"g_hMod RTCCPTR_DEF 0\n"
582	"\n"
583	"\n"
584	"\n");
585
586	/*
587	* How we load the module needs to be selectable later on.
588	*
589	* The LazyLoading routine returns the module handle in RCX/ECX, caller
590	* saved all necessary registers.
591	*/
592	if (!g_fSystemLibrary)
593	fprintf(pOutput,
594	";\n"
595	";SUPR3DECL(int) SUPR3HardenedLdrLoadAppPriv(const char *pszFilename, PRTLDRMOD phLdrMod,\n"
596	"; uint32_t fFlags, PRTERRINFO pErrInfo);\n"
597	";\n"
598	"EXTERN_IMP2 SUPR3HardenedLdrLoadAppPriv\n"
599	"%%ifdef IN_RT_R3\n"
600	"extern NAME(RTAssertMsg2Weak)\n"
601	"%%else\n"
602	"EXTERN_IMP2 RTAssertMsg2Weak\n"
603	"%%endif\n"
604	"BEGINCODE\n"
605	"\n"
606	"LazyLoading:\n"
607	" mov xCX, [g_hMod xWrtRIP]\n"
608	" or xCX, xCX\n"
609	" jnz .return\n"
610	"\n"
611	"%%ifdef ASM_CALL64_GCC\n"
612	" xor rcx, rcx ; pErrInfo\n"
613	" xor rdx, rdx ; fFlags (local load)\n"
614	" lea rsi, [g_hMod wrt rip] ; phLdrMod\n"
615	" lea rdi, [g_szLibrary wrt rip] ; pszFilename\n"
616	" sub rsp, 08h\n"
617	" call IMP2(SUPR3HardenedLdrLoadAppPriv)\n"
618	" add rsp, 08h\n"
619	"\n"
620	"%%elifdef ASM_CALL64_MSC\n"
621	" xor r9, r9 ; pErrInfo\n"
622	" xor r8, r8 ; fFlags (local load)\n"
623	" lea rdx, [g_hMod wrt rip] ; phLdrMod\n"
624	" lea rcx, [g_szLibrary wrt rip] ; pszFilename\n"
625	" sub rsp, 28h\n"
626	" call IMP2(SUPR3HardenedLdrLoadAppPriv)\n"
627	" add rsp, 28h\n"
628	"\n"
629	"%%elifdef RT_ARCH_X86\n"
630	" sub xSP, 0ch\n"
631	" push 0 ; pErrInfo\n"
632	" push 0 ; fFlags (local load)\n"
633	" push g_hMod ; phLdrMod\n"
634	" push g_szLibrary ; pszFilename\n"
635	" call IMP2(SUPR3HardenedLdrLoadAppPriv)\n"
636	" add esp, 1ch\n"
637	"%%else\n"
638	" %%error \"Unsupported architecture\"\n"
639	"%%endif\n");
640	else
641	fprintf(pOutput,
642	";\n"
643	"; RTDECL(int) RTLdrLoadSystem(const char *pszFilename, bool fNoUnload, PRTLDRMOD phLdrMod);\n"
644	";\n"
645	"%%ifdef IN_RT_R3\n"
646	"extern NAME(RTLdrLoadSystem)\n"
647	"extern NAME(RTAssertMsg2Weak)\n"
648	"%%else\n"
649	"EXTERN_IMP2 RTLdrLoadSystem\n"
650	"EXTERN_IMP2 RTAssertMsg2Weak\n"
651	"%%endif\n"
652	"BEGINCODE\n"
653	"\n"
654	"LazyLoading:\n"
655	" mov xCX, [g_hMod xWrtRIP]\n"
656	" or xCX, xCX\n"
657	" jnz .return\n"
658	"\n"
659	"%%ifdef ASM_CALL64_GCC\n"
660	" lea rdx, [g_hMod wrt rip] ; phLdrMod\n"
661	" mov esi, 1 ; fNoUnload=true\n"
662	" lea rdi, [g_szLibrary wrt rip] ; pszFilename\n"
663	" sub rsp, 08h\n"
664	" %%ifdef IN_RT_R3\n"
665	" call NAME(RTLdrLoadSystem)\n"
666	" %%else\n"
667	" call IMP2(RTLdrLoadSystem)\n"
668	" %%endif\n"
669	" add rsp, 08h\n"
670	"\n"
671	"%%elifdef ASM_CALL64_MSC\n"
672	" lea r8, [g_hMod wrt rip] ; phLdrMod\n"
673	" mov edx, 1 ; fNoUnload=true\n"
674	" lea rcx, [g_szLibrary wrt rip] ; pszFilename\n"
675	" sub rsp, 28h\n"
676	" %%ifdef IN_RT_R3\n"
677	" call NAME(RTLdrLoadSystem)\n"
678	" %%else\n"
679	" call IMP2(RTLdrLoadSystem)\n"
680	" %%endif\n"
681	" add rsp, 28h\n"
682	"\n"
683	"%%elifdef RT_ARCH_X86\n"
684	" push g_hMod ; phLdrMod\n"
685	" push 1 ; fNoUnload=true\n"
686	" push g_szLibrary ; pszFilename\n"
687	" %%ifdef IN_RT_R3\n"
688	" call NAME(RTLdrLoadSystem)\n"
689	" %%else\n"
690	" call IMP2(RTLdrLoadSystem)\n"
691	" %%endif\n"
692	" add esp, 0ch\n"
693	"%%else\n"
694	" %%error \"Unsupported architecture\"\n"
695	"%%endif\n");
696	fprintf(pOutput,
697	" or eax, eax\n"
698	" jnz .badload\n"
699	" mov xCX, [g_hMod xWrtRIP]\n"
700	".return:\n"
701	" ret\n"
702	"\n"
703	".badload:\n"
704	"%%ifdef ASM_CALL64_GCC\n"
705	" mov edx, eax\n"
706	" lea rsi, [g_szLibrary wrt rip]\n"
707	" lea rdi, [g_szFailLoadFmt wrt rip]\n"
708	" sub rsp, 08h\n"
709	"%%elifdef ASM_CALL64_MSC\n"
710	" mov r8d, eax\n"
711	" lea rdx, [g_szLibrary wrt rip]\n"
712	" lea rcx, [g_szFailLoadFmt wrt rip]\n"
713	" sub rsp, 28h\n"
714	"%%elifdef RT_ARCH_X86\n"
715	" push eax\n"
716	" push g_szLibrary\n"
717	" push g_szFailLoadFmt\n"
718	"%%endif\n"
719	"%%ifdef IN_RT_R3\n"
720	" call NAME(RTAssertMsg2Weak)\n"
721	"%%else\n"
722	" call IMP2(RTAssertMsg2Weak)\n"
723	"%%endif\n"
724	".badloadloop:\n"
725	" int3\n"
726	" jmp .badloadloop\n"
727	"LazyLoading_End:\n"
728	"\n"
729	"\n");
730
731
732	fprintf(pOutput,
733	";\n"
734	";RTDECL(int) RTLdrGetSymbol(RTLDRMOD hLdrMod, const char pszSymbol, void *ppvValue);\n"
735	";\n"
736	"%%ifdef IN_RT_R3\n"
737	"extern NAME(RTLdrGetSymbol)\n"
738	"%%else\n"
739	"EXTERN_IMP2 RTLdrGetSymbol\n"
740	"%%endif\n"
741	"BEGINCODE\n"
742	"LazyLoadResolver:\n"
743	"%%ifdef RT_ARCH_AMD64\n"
744	" push rbp\n"
745	" mov rbp, rsp\n"
746	" push r15\n"
747	" push r14\n"
748	" mov r15, rax ; name\n"
749	" mov r14, r10 ; ppfn\n"
750	" push r9\n"
751	" push r8\n"
752	" push rcx\n"
753	" push rdx\n"
754	" push r12\n"
755	" %%ifdef ASM_CALL64_GCC\n"
756	" push rsi\n"
757	" push rdi\n"
758	" mov r12, rsp\n"
759	" %%else\n"
760	" mov r12, rsp\n"
761	" sub rsp, 20h\n"
762	" %%endif\n"
763	" and rsp, 0fffffff0h ; Try make sure the stack is aligned\n"
764	"\n"
765	" call LazyLoading ; returns handle in rcx\n"
766	" %%ifdef ASM_CALL64_GCC\n"
767	" mov rdi, rcx ; hLdrMod\n"
768	" mov rsi, r15 ; pszSymbol\n"
769	" mov rdx, r14 ; ppvValue\n"
770	" %%else\n"
771	" mov rdx, r15 ; pszSymbol\n"
772	" mov r8, r14 ; ppvValue\n"
773	" %%endif\n"
774	" %%ifdef IN_RT_R3\n"
775	" call NAME(RTLdrGetSymbol)\n"
776	" %%else\n"
777	" call IMP2(RTLdrGetSymbol)\n"
778	" %%endif\n"
779	" or eax, eax\n"
780	" jnz .badsym\n"
781	"\n"
782	" mov rsp, r12\n"
783	" %%ifdef ASM_CALL64_GCC\n"
784	" pop rdi\n"
785	" pop rsi\n"
786	" %%endif\n"
787	" pop r12\n"
788	" pop rdx\n"
789	" pop rcx\n"
790	" pop r8\n"
791	" pop r9\n"
792	" pop r14\n"
793	" pop r15\n"
794	" leave\n"
795	"\n"
796	"%%elifdef RT_ARCH_X86\n"
797	" push ebp\n"
798	" mov ebp, esp\n"
799	" push eax\n"
800	" push ecx\n"
801	" push edx\n"
802	" and esp, 0fffffff0h\n"
803	"\n"
804	".loaded:\n"
805	" call LazyLoading ; returns handle in ecx\n"
806	" push dword [ebp + 8] ; value addr\n"
807	" push dword [ebp + 12] ; symbol name\n"
808	" push ecx\n"
809	" %%ifdef IN_RT_R3\n"
810	" call NAME(RTLdrGetSymbol)\n"
811	" %%else\n"
812	" call IMP2(RTLdrGetSymbol)\n"
813	" %%endif\n"
814	" or eax, eax\n"
815	" jnz .badsym\n"
816	" lea esp, [ebp - 0ch]\n"
817	" pop edx\n"
818	" pop ecx\n"
819	" pop eax\n"
820	" leave\n"
821	"%%else\n"
822	" %%error \"Unsupported architecture\"\n"
823	"%%endif\n"
824	" ret\n"
825	"\n"
826	".badsym:\n"
827	"%%ifdef ASM_CALL64_GCC\n"
828	" mov ecx, eax\n"
829	" lea rdx, [g_szLibrary wrt rip]\n"
830	" mov rsi, r15\n"
831	" lea rdi, [g_szFailResolveFmt wrt rip]\n"
832	" sub rsp, 08h\n"
833	"%%elifdef ASM_CALL64_MSC\n"
834	" mov r9d, eax\n"
835	" mov r8, r15\n"
836	" lea rdx, [g_szLibrary wrt rip]\n"
837	" lea rcx, [g_szFailResolveFmt wrt rip]\n"
838	" sub rsp, 28h\n"
839	"%%elifdef RT_ARCH_X86\n"
840	" push eax\n"
841	" push dword [ebp + 12]\n"
842	" push g_szLibrary\n"
843	" push g_szFailResolveFmt\n"
844	"%%endif\n"
845	"%%ifdef IN_RT_R3\n"
846	" call NAME(RTAssertMsg2Weak)\n"
847	"%%else\n"
848	" call IMP2(RTAssertMsg2Weak)\n"
849	"%%endif\n"
850	".badsymloop:\n"
851	" int3\n"
852	" jmp .badsymloop\n"
853	"\n"
854	"LazyLoadResolver_End:\n"
855	"\n"
856	"\n"
857	);
858
859
860
861	/*
862	* C callable method for explicitly loading the library and optionally
863	* resolving all the imports.
864	*/
865	if (g_fWithExplictLoadFunction)
866	{
867	int cchLibBaseName = (int)(strchr(g_pszLibrary, '.') ? strchr(g_pszLibrary, '.') - g_pszLibrary : strlen(g_pszLibrary));
868	fprintf(pOutput,
869	";;\n"
870	"; ExplicitlyLoad%.*s(bool fResolveAllImports, pErrInfo);\n"
871	";\n"
872	"%%ifdef IN_RT_R3\n"
873	"extern NAME(RTErrInfoSet)\n"
874	"%%else\n"
875	"EXTERN_IMP2 RTErrInfoSet\n"
876	"%%endif\n"
877	"BEGINCODE\n"
878	"BEGINPROC ExplicitlyLoad%.*s\n"
879	" push xBP\n"
880	" mov xBP, xSP\n"
881	" push xBX\n"
882	"%%ifdef ASM_CALL64_GCC\n"
883	" %%define pszCurStr r14\n"
884	" push r14\n"
885	"%%else\n"
886	" %%define pszCurStr xDI\n"
887	" push xDI\n"
888	"%%endif\n"
889	" sub xSP, 40h\n"
890	"\n"
891	" ;\n"
892	" ; Save parameters on stack (64-bit only).\n"
893	" ;\n"
894	"%%ifdef ASM_CALL64_GCC\n"
895	" mov [xBP - xCB * 3], rdi ; fResolveAllImports\n"
896	" mov [xBP - xCB * 4], rsi ; pErrInfo\n"
897	"%%elifdef ASM_CALL64_MSC\n"
898	" mov [xBP - xCB * 3], rcx ; fResolveAllImports\n"
899	" mov [xBP - xCB * 4], rdx ; pErrInfo\n"
900	"%%endif\n"
901	"\n"
902	" ;\n"
903	" ; Is the module already loaded?\n"
904	" ;\n"
905	" cmp RTCCPTR_PRE [g_hMod xWrtRIP], 0\n"
906	" jnz .loaded\n"
907	"\n"
908	" ;\n"
909	" ; Load the module.\n"
910	" ;\n"
911	,
912	cchLibBaseName, g_pszLibrary,
913	cchLibBaseName, g_pszLibrary);
914	if (!g_fSystemLibrary)
915	fprintf(pOutput,
916	"%%ifdef ASM_CALL64_GCC\n"
917	" mov rcx, [xBP - xCB * 4] ; pErrInfo\n"
918	" xor rdx, rdx ; fFlags (local load)\n"
919	" lea rsi, [g_hMod wrt rip] ; phLdrMod\n"
920	" lea rdi, [g_szLibrary wrt rip] ; pszFilename\n"
921	" call IMP2(SUPR3HardenedLdrLoadAppPriv)\n"
922	"\n"
923	"%%elifdef ASM_CALL64_MSC\n"
924	" mov r9, [xBP - xCB * 4] ; pErrInfo\n"
925	" xor r8, r8 ; fFlags (local load)\n"
926	" lea rdx, [g_hMod wrt rip] ; phLdrMod\n"
927	" lea rcx, [g_szLibrary wrt rip] ; pszFilename\n"
928	" call IMP2(SUPR3HardenedLdrLoadAppPriv)\n"
929	"\n"
930	"%%elifdef RT_ARCH_X86\n"
931	" sub xSP, 0ch\n"
932	" push dword [xBP + 12] ; pErrInfo\n"
933	" push 0 ; fFlags (local load)\n"
934	" push g_hMod ; phLdrMod\n"
935	" push g_szLibrary ; pszFilename\n"
936	" call IMP2(SUPR3HardenedLdrLoadAppPriv)\n"
937	" add esp, 1ch\n"
938	"%%else\n"
939	" %%error \"Unsupported architecture\"\n"
940	"%%endif\n");
941	else
942	fprintf(pOutput,
943	"%%ifdef ASM_CALL64_GCC\n"
944	" lea rdx, [g_hMod wrt rip] ; phLdrMod\n"
945	" mov esi, 1 ; fNoUnload=true\n"
946	" lea rdi, [g_szLibrary wrt rip] ; pszFilename\n"
947	" %%ifdef IN_RT_R3\n"
948	" call NAME(RTLdrLoadSystem)\n"
949	" %%else\n"
950	" call IMP2(RTLdrLoadSystem)\n"
951	" %%endif\n"
952	"\n"
953	"%%elifdef ASM_CALL64_MSC\n"
954	" lea r8, [g_hMod wrt rip] ; phLdrMod\n"
955	" mov edx, 1 ; fNoUnload=true\n"
956	" lea rcx, [g_szLibrary wrt rip] ; pszFilename\n"
957	" %%ifdef IN_RT_R3\n"
958	" call NAME(RTLdrLoadSystem)\n"
959	" %%else\n"
960	" call IMP2(RTLdrLoadSystem)\n"
961	" %%endif\n"
962	"\n"
963	"%%elifdef RT_ARCH_X86\n"
964	" push g_hMod ; phLdrMod\n"
965	" push 1 ; fNoUnload=true\n"
966	" push g_szLibrary ; pszFilename\n"
967	" %%ifdef IN_RT_R3\n"
968	" call NAME(RTLdrLoadSystem)\n"
969	" %%else\n"
970	" call IMP2(RTLdrLoadSystem)\n"
971	" %%endif\n"
972	" add esp, 0ch\n"
973	"%%else\n"
974	" %%error \"Unsupported architecture\"\n"
975	"%%endif\n");
976	fprintf(pOutput,
977	" or eax, eax\n"
978	" jnz .return\n"
979	"\n"
980	" ;\n"
981	" ; Resolve the imports too if requested to do so.\n"
982	" ;\n"
983	".loaded:\n"
984	"%%ifdef ASM_ARCH_X86\n"
985	" cmp byte [xBP + 8], 0\n"
986	"%%else\n"
987	" cmp byte [xBP - xCB * 3], 0\n"
988	"%%endif\n"
989	" je .return\n"
990	"\n"
991	" lea pszCurStr, [g_szzNames xWrtRIP]\n"
992	" lea xBX, [g_apfnImports xWrtRIP]\n"
993	".next_import:\n"
994	" cmp RTCCPTR_PRE [xBX], 0\n"
995	" je .return\n"
996	"%%ifdef ASM_CALL64_GCC\n"
997	" mov rdx, xBX ; ppvValue\n"
998	" mov rsi, pszCurStr ; pszSymbol\n"
999	" mov rdi, [g_hMod wrt rip] ; hLdrMod\n"
1000	" %%ifdef IN_RT_R3\n"
1001	" call NAME(RTLdrGetSymbol)\n"
1002	" %%else\n"
1003	" call IMP2(RTLdrGetSymbol)\n"
1004	" %%endif\n"
1005	"%%elifdef ASM_CALL64_MSC\n"
1006	" mov r8, xBX ; ppvValue\n"
1007	" mov rdx, pszCurStr ; pszSymbol\n"
1008	" mov rcx, [g_hMod wrt rip] ; pszSymbol\n"
1009	" %%ifdef IN_RT_R3\n"
1010	" call NAME(RTLdrGetSymbol)\n"
1011	" %%else\n"
1012	" call IMP2(RTLdrGetSymbol)\n"
1013	" %%endif\n"
1014	"%%else\n"
1015	" push xBX ; ppvValue\n"
1016	" push pszCurStr ; pszSymbol\n"
1017	" push RTCCPTR_PRE [g_hMod] ; hLdrMod\n"
1018	" %%ifdef IN_RT_R3\n"
1019	" call NAME(RTLdrGetSymbol)\n"
1020	" %%else\n"
1021	" call IMP2(RTLdrGetSymbol)\n"
1022	" %%endif\n"
1023	" add xSP, 0ch\n"
1024	"%%endif\n"
1025	" or eax, eax\n"
1026	" jnz .symbol_error\n"
1027	"\n"
1028	" ; Advance.\n"
1029	" add xBX, RTCCPTR_CB\n"
1030	" xor eax, eax\n"
1031	" mov xCX, 0ffffffffh\n"
1032	"%%ifdef ASM_CALL64_GCC\n"
1033	" mov xDI, pszCurStr\n"
1034	" repne scasb\n"
1035	" mov pszCurStr, xDI\n"
1036	"%%else\n"
1037	" repne scasb\n"
1038	"%%endif\n"
1039	" jmp .next_import\n"
1040	"\n"
1041	" ;\n"
1042	" ; Error loading a symbol. Call RTErrInfoSet on pErrInfo (preserves eax).\n"
1043	" ;\n"
1044	".symbol_error:\n"
1045	"%%ifdef ASM_CALL64_GCC\n"
1046	" mov rdx, pszCurStr ; pszMsg\n"
1047	" mov esi, eax ; rc\n"
1048	" mov rdi, [xBP - xCB * 4] ; pErrInfo\n"
1049	" %%ifdef IN_RT_R3\n"
1050	" call NAME(RTErrInfoSet)\n"
1051	" %%else\n"
1052	" call IMP2(RTErrInfoSet)\n"
1053	" %%endif\n"
1054	"%%elifdef ASM_CALL64_MSC\n"
1055	" mov r8, pszCurStr ; pszMsg\n"
1056	" mov edx, eax ; rc\n"
1057	" mov rcx, [xBP - xCB * 4] ; pErrInfo\n"
1058	" %%ifdef IN_RT_R3\n"
1059	" call NAME(RTErrInfoSet)\n"
1060	" %%else\n"
1061	" call IMP2(RTErrInfoSet)\n"
1062	" %%endif\n"
1063	"%%else\n"
1064	" push pszCurStr ; pszMsg\n"
1065	" push eax ; pszSymbol\n"
1066	" push dword [xBP + 0ch] ; pErrInfo\n"
1067	" %%ifdef IN_RT_R3\n"
1068	" call NAME(RTErrInfoSet)\n"
1069	" %%else\n"
1070	" call IMP2(RTErrInfoSet)\n"
1071	" %%endif\n"
1072	" add xSP, 0ch\n"
1073	"%%endif\n"
1074	" "
1075	"\n"
1076	".return:\n"
1077	" mov pszCurStr, [xBP - xCB * 2]\n"
1078	" mov xBX, [xBP - xCB * 1]\n"
1079	" leave\n"
1080	" ret\n"
1081	"ENDPROC ExplicitlyLoad%.*s\n"
1082	"\n"
1083	"\n"
1084	,
1085	cchLibBaseName, g_pszLibrary);
1086	}
1087
1088
1089	return RTEXITCODE_SUCCESS;
1090	}
1091
1092
1093	/**
1094	* Generates the assembly source code for ARM64, writing it
1095	* to @a pOutput.
1096	*
1097	* @returns RTEXITCODE_SUCCESS or RTEXITCODE_FAILURE, in the latter case full
1098	* details has been displayed.
1099	* @param pOutput The output stream (caller checks it for errors
1100	* when closing).
1101	*/
1102	static RTEXITCODE generateOutputInnerArm64(FILE *pOutput)
1103	{
1104	fprintf(pOutput, "/*\n");
1105	for (unsigned i = 0; i < g_cInputs; i++)
1106	fprintf(pOutput, " * Autogenerated from '%s'.\n", g_apszInputs[i]);
1107
1108	fprintf(pOutput,
1109	" * DO NOT EDIT!\n"
1110	" */\n"
1111	"\n"
1112	"\n"
1113	"#include \"iprt/asmdefs-arm.h\"\n"
1114	"\n"
1115	"\n");
1116
1117	/*
1118	* Put the thunks first for alignment and other reasons. It's the hot part of the code.
1119	*/
1120	fprintf(pOutput,
1121	"/*\n"
1122	" * Thunks.\n"
1123	" */\n"
1124	"BEGINCODE\n");
1125	for (PMYEXPORT pExp = g_pExpHead; pExp; pExp = pExp->pNext)
1126	if (!pExp->fData)
1127	fprintf(pOutput,
1128	".p2align 3\n"
1129	".globl NAME(%s)\n"
1130	"NAME(%s):\n"
1131	" adrp x9, PAGE(NAME(g_pfn%s))\n"
1132	" ldr x9, [x9, PAGEOFF(NAME(g_pfn%s))]\n"
1133	" br x9\n",
1134	pExp->szName, pExp->szName, pExp->szName, pExp->szName);
1135	else
1136	fprintf(pOutput,
1137	".p2align 3\n"
1138	".globl NAME(LazyGetPtr_%s)\n"
1139	"NAME(LazyGetPtr_%s):\n"
1140	" adrp x9, PAGE(NAME(g_LazyPtr_%s))\n"
1141	" ldr x9, [x9, PAGEOFF(NAME(g_LazyPtr_%s))]\n"
1142	" cmp x9, #0\n"
1143	" b.eq ___LazyLoad___%s\n"
1144	" mov x0, x9\n"
1145	" ret\n",
1146	pExp->szName, pExp->szName, pExp->szName, pExp->szName, pExp->pszExportedNm);
1147	fprintf(pOutput,
1148	"ENDCODE\n"
1149	"\n"
1150	"\n");
1151
1152	/*
1153	* Import pointers
1154	*/
1155	fprintf(pOutput,
1156	"/*\n"
1157	" * Import pointers. Initialized to point to lazy loading stubs.\n"
1158	" */\n"
1159	"BEGINDATA\n"
1160	".p2align 3\n"
1161	"g_apfnImports:\n");
1162	for (PMYEXPORT pExp = g_pExpHead; pExp; pExp = pExp->pNext)
1163	if (!pExp->fData)
1164	fprintf(pOutput,
1165	".globl __imp_%s\n"
1166	"__imp_%s:\n"
1167	".globl NAME(g_pfn%s)\n"
1168	"NAME(g_pfn%s):\n"
1169	" .quad ___LazyLoad___%s\n"
1170	"\n",
1171	pExp->szName, pExp->szName,
1172	pExp->szName, pExp->szName,
1173	pExp->pszExportedNm);
1174	else
1175	fprintf(pOutput,
1176	".globl NAME(g_LazyPtr_%s)\n"
1177	"NAME(g_LazyPtr_%s):\n"
1178	" .quad 0\n"
1179	"\n",
1180	pExp->szName, pExp->szName);
1181	fprintf(pOutput,
1182	" .quad 0 /* Terminator entry for traversal. */\n"
1183	"ENDDATA\n"
1184	"\n"
1185	"\n");
1186
1187	/*
1188	* Now for the less important stuff, starting with the names.
1189	*
1190	* We keep the names separate so we can traverse them in parallel to
1191	* g_apfnImports in the load-everything routine further down.
1192	*/
1193	fprintf(pOutput,
1194	"/*\n"
1195	" * Imported names.\n"
1196	" */\n"
1197	"BEGINCONSTSTRINGS\n"
1198	"g_szLibrary:\n"
1199	" .asciz \"%s\"\n"
1200	"\n"
1201	"g_szzNames:\n",
1202	g_pszLibrary);
1203	for (PMYEXPORT pExp = g_pExpHead; pExp; pExp = pExp->pNext)
1204	if (!pExp->fNoName)
1205	fprintf(pOutput, " g_sz%s:\n .asciz \"%s\"\n", pExp->pszExportedNm, pExp->pszExportedNm);
1206	else
1207	fprintf(pOutput, " g_sz%s:\n .asciz \"#%u\"\n", pExp->pszExportedNm, pExp->uOrdinal);
1208	fprintf(pOutput,
1209	"g_EndOfNames: .byte 0\n"
1210	"\n"
1211	"g_szFailLoadFmt: .asciz \"Lazy loader failed to load \\\"%%s\\\": %%Rrc\\n\"\n"
1212	"g_szFailResolveFmt: .asciz \"Lazy loader failed to resolve symbol \\\"%%s\\\" in \\\"%%s\\\": %%Rrc\\n\"\n"
1213	"ENDCONSTSTRINGS\n"
1214	"\n"
1215	"\n");
1216
1217	/*
1218	* The per import lazy load code.
1219	*/
1220	fprintf(pOutput,
1221	"/*\n"
1222	" * Lazy load+resolve stubs.\n"
1223	" */\n"
1224	"BEGINCODE\n"
1225	".p2align 3\n");
1226	for (PMYEXPORT pExp = g_pExpHead; pExp; pExp = pExp->pNext)
1227	{
1228	if (!pExp->fNoName)
1229	fprintf(pOutput,
1230	"___LazyLoad___%s:\n"
1231	" adrp x9, PAGE(g_sz%s)\n"
1232	"#ifndef ASM_FORMAT_ELF\n"
1233	" add x9, x9, PAGEOFF(g_sz%s)\n"
1234	"#else\n"
1235	" ldr x9, [x9, PAGEOFF(g_sz%s)]\n"
1236	"#endif\n"
1237	" adrp x10, PAGE(NAME(%s%s))\n"
1238	"#ifndef ASM_FORMAT_ELF\n"
1239	" add x10, x10, PAGEOFF(NAME(%s%s))\n"
1240	"#else\n"
1241	" ldr x10, [x10, PAGEOFF(NAME(%s%s))]\n"
1242	"#endif\n"
1243	" mov x16, x30\n"
1244	" bl LazyLoadResolver\n"
1245	" mov x30, x16\n"
1246	, pExp->pszExportedNm,
1247	pExp->pszExportedNm, pExp->pszExportedNm, pExp->pszExportedNm,
1248	!pExp->fData ? "g_pfn" : "g_LazyPtr_", pExp->pszExportedNm,
1249	!pExp->fData ? "g_pfn" : "g_LazyPtr_", pExp->pszExportedNm,
1250	!pExp->fData ? "g_pfn" : "g_LazyPtr_", pExp->pszExportedNm);
1251	else
1252	fprintf(pOutput,
1253	"___LazyLoad___%s:\n"
1254	" movk w9, #%u\n"
1255	" adrp x10, PAGE(NAME(%s%s))\n"
1256	"#ifndef ASM_FORMAT_ELF\n"
1257	" add x10, x10, PAGEOFF(NAME(%s%s))\n"
1258	"#else\n"
1259	" ldr x10, [x10, PAGEOFF(NAME(%s%s))]\n"
1260	"#endif\n"
1261	, pExp->pszExportedNm,
1262	pExp->uOrdinal,
1263	!pExp->fData ? "g_pfn" : "g_LazyPtr_", pExp->pszExportedNm,
1264	!pExp->fData ? "g_pfn" : "g_LazyPtr_", pExp->pszExportedNm,
1265	!pExp->fData ? "g_pfn" : "g_LazyPtr_", pExp->pszExportedNm);
1266	if (!pExp->fData)
1267	fprintf(pOutput, " b NAME(%s)\n", pExp->szName);
1268	else
1269	fprintf(pOutput, " b NAME(LazyGetPtr_%s)\n", pExp->szName);
1270	fprintf(pOutput, "\n");
1271	}
1272	fprintf(pOutput,
1273	"ENDCODE\n"
1274	"\n"
1275	"\n"
1276	"\n");
1277
1278	/*
1279	* The code that does the loading and resolving.
1280	*/
1281	fprintf(pOutput,
1282	"/*\n"
1283	" * The module handle.\n"
1284	" */\n"
1285	"BEGINDATA\n"
1286	"g_hMod:\n"
1287	" .quad 0\n"
1288	"ENDDATA\n"
1289	"\n"
1290	"\n"
1291	"\n");
1292
1293	/*
1294	* Common lazy loader and resolved.
1295	*/
1296	fprintf(pOutput,
1297	"/*\n"
1298	" * The resolver code.\n"
1299	" */\n"
1300	"BEGINCODE\n"
1301	".p2align 3\n"
1302	"LazyLoadResolver:\n"
1303	" .cfi_startproc\n"
1304	" /* Create frame. */\n"
1305	" sub sp, sp, #(16 + 192)\n"
1306	" stp x29, x30, [sp, #192]\n"
1307	" add x29, sp, #192\n"
1308	" .cfi_def_cfa x29, 16\n"
1309	" .cfi_offset x30, -8\n"
1310	" .cfi_offset x29, -16\n"
1311	" /* Save all argument registers and a handful of preserved ones. */\n"
1312	" stp x0, x1, [sp, #(192 - 16)]\n"
1313	" .cfi_offset x0, -32\n"
1314	" .cfi_offset x1, -24\n"
1315	" stp x2, x3, [sp, #(192 - 32)]\n"
1316	" .cfi_offset x3, -40\n"
1317	" .cfi_offset x2, -48\n"
1318	" stp x4, x5, [sp, #(192 - 48)]\n"
1319	" .cfi_offset x6, -56\n"
1320	" .cfi_offset x5, -64\n"
1321	" stp x6, x7, [sp, #(192 - 64)]\n"
1322	" .cfi_offset x7, -72\n"
1323	" .cfi_offset x6, -80\n"
1324	" stp x16, x17, [sp, #(192 - 80)]\n"
1325	" .cfi_offset x17, -88\n"
1326	" .cfi_offset x16, -96\n"
1327	" stp x18, x19, [sp, #(192 - 96)]\n"
1328	" .cfi_offset x19, -104\n"
1329	" .cfi_offset x18, -112\n"
1330	" stp x20, x21, [sp, #(192 - 112)]\n"
1331	" .cfi_offset x21, -120\n"
1332	" .cfi_offset x20, -128\n"
1333	" stp x22, x23, [sp, #(192 - 128)]\n"
1334	" .cfi_offset x23, -136\n"
1335	" .cfi_offset x22, -144\n"
1336	" str x8, [sp, #(192 - 144)]\n"
1337	"\n"
1338	" /* Shift the symbol name to x19 and g_pfnXXXX pointer to x20 as these are preserved registers\n"
1339	" * (in case we need to call LazyLoadModule/RTLdrLoad) */\n"
1340	" mov x19, x9\n"
1341	" mov x20, x10\n"
1342	"\n"
1343	" /* Get the module handle and call RTLdrGetSymbol(RTLDRMOD hLdrMod, const char pszSymbol, void ppvValue) /\n"
1344	" adrp x0, PAGE(g_hMod)\n"
1345	" ldr x0, [x0, PAGEOFF(g_hMod)]\n"
1346	" cmp x0, #0\n"
1347	" b.ne Lloaded\n"
1348	" bl LazyLoading\n"
1349	"Lloaded:\n"
1350	" mov x1, x19\n"
1351	" mov x2, x20\n"
1352	" bl NAME(RTLdrGetSymbol)\n"
1353	"\n"
1354	" cmp w0, #0\n"
1355	" b.eq Lreturn\n"
1356	"\n"
1357	"Lbadsym: /* Call sRTAssertMsg2Weak. Variadic (...) arguments are passed on the stack it seems. */\n"
1358	" mov x3, x0\n"
1359	" adrp x2, PAGE(g_szLibrary)\n"
1360	"#ifndef ASM_FORMAT_ELF\n"
1361	" add x2, x2, PAGEOFF(g_szLibrary)\n"
1362	"#else\n"
1363	" ldr x2, [x2, PAGEOFF(g_szLibrary)]\n"
1364	"#endif\n"
1365	" mov x1, x19\n"
1366	" adrp x0, PAGE(g_szFailLoadFmt)\n"
1367	"#ifndef ASM_FORMAT_ELF\n"
1368	" add x0, x0, PAGEOFF(g_szFailLoadFmt)\n"
1369	"#else\n"
1370	" ldr x0, [x0, PAGEOFF(g_szFailLoadFmt)]\n"
1371	"#endif\n"
1372	" stp x1, x2, [sp]\n"
1373	" str x3, [sp, #16]\n"
1374	" bl NAME(RTAssertMsg2Weak)\n"
1375	"Lbadsymloop:\n"
1376	" brk #0x1\n"
1377	" b Lbadsymloop\n"
1378
1379	"Lreturn:\n"
1380	" /* Restore saved register */\n"
1381	" ldr x8, [sp, #(192 - 144)]\n"
1382	" .cfi_restore x8\n"
1383	" ldp x22, x23, [sp, #(192 - 128)]\n"
1384	" .cfi_restore x23\n"
1385	" .cfi_restore x22\n"
1386	" ldp x20, x21, [sp, #(192 - 112)]\n"
1387	" .cfi_restore x21\n"
1388	" .cfi_restore x20\n"
1389	" ldp x18, x19, [sp, #(192 - 96)]\n"
1390	" .cfi_restore x19\n"
1391	" .cfi_restore x18\n"
1392	" ldp x16, x17, [sp, #(192 - 80)]\n"
1393	" .cfi_restore x17\n"
1394	" .cfi_restore x18\n"
1395	" ldp x6, x7, [sp, #(192 - 64)]\n"
1396	" .cfi_restore x7\n"
1397	" .cfi_restore x6\n"
1398	" ldp x4, x5, [sp, #(192 - 48)]\n"
1399	" .cfi_restore x5\n"
1400	" .cfi_restore x4\n"
1401	" ldp x2, x3, [sp, #(192 - 32)]\n"
1402	" .cfi_restore x3\n"
1403	" .cfi_restore x2\n"
1404	" ldp x0, x1, [sp, #(192 - 16)]\n"
1405	" .cfi_restore x1\n"
1406	" .cfi_restore x0\n"
1407	"\n"
1408	" ldp x29, x30, [sp, #192]\n"
1409	" .cfi_restore x29\n"
1410	" .cfi_restore x30\n"
1411	" add sp, sp, #(16 + 192)\n"
1412	" ret\n"
1413	" .cfi_endproc\n"
1414	"\n"
1415	"\n");
1416
1417	fprintf(pOutput,
1418	"/*\n"
1419	" * Loads the module.\n"
1420	" * ASSUMES called from LazyLoadResolver where all relevant registers are already saved.\n"
1421	" */\n"
1422	"LazyLoading:\n"
1423	" .cfi_startproc\n"
1424	" /* Create frame. */\n"
1425	" sub sp, sp, #(16 + 48)\n"
1426	" stp x29, x30, [sp, #48]\n"
1427	" add x29, sp, #48\n"
1428	" .cfi_def_cfa x29, 16\n"
1429	" .cfi_offset x30, -8\n"
1430	" .cfi_offset x29, -16\n"
1431	"\n");
1432
1433	if (!g_fSystemLibrary)
1434	fprintf(pOutput,
1435	" /* Call SUPR3HardenedLdrLoadAppPriv(const char pszFilename, PRTLDRMOD phLdrMod, uint32_t fFlags, PRTERRINFO pErrInfo); /\n"
1436	" mov x3, #0\n"
1437	" mov x2, #0\n"
1438	" adrp x1, PAGE(g_hMod)\n"
1439	"#ifndef ASM_FORMAT_ELF\n"
1440	" add x1, x1, PAGEOFF(g_hMod)\n"
1441	"#else\n"
1442	" ldr x1, [x1, PAGEOFF(g_hMod)]\n"
1443	"#endif\n"
1444	" adrp x0, PAGE(g_szLibrary)\n"
1445	"#ifndef ASM_FORMAT_ELF\n"
1446	" add x0, x0, PAGEOFF(g_szLibrary)\n"
1447	"#else\n"
1448	" ldr x0, [x0, PAGEOFF(g_szLibrary)]\n"
1449	"#endif\n"
1450	" bl NAME(SUPR3HardenedLdrLoadAppPriv)\n");
1451	else
1452	fprintf(pOutput,
1453	" /* Call RTLdrLoadSystem(const char pszFilename, bool fNoUnload, PRTLDRMOD phLdrMod); /\n"
1454	" adrp x2, PAGE(g_hMod)\n"
1455	"#ifndef ASM_FORMAT_ELF\n"
1456	" add x2, x2, PAGEOFF(g_hMod)\n"
1457	"#else\n"
1458	" ldr x2, [x2, PAGEOFF(g_hMod)]\n"
1459	"#endif\n"
1460	" mov x1, #1\n"
1461	" adrp x0, PAGE(g_szLibrary)\n"
1462	"#ifndef ASM_FORMAT_ELF\n"
1463	" add x0, x0, PAGEOFF(g_szLibrary)\n"
1464	"#else\n"
1465	" ldr x0, [x0, PAGEOFF(g_szLibrary)]\n"
1466	"#endif\n"
1467	" bl NAME(RTLdrLoadSystem)\n");
1468
1469	fprintf(pOutput,
1470	" cmp w0, #0\n"
1471	" b.eq Lload_return\n"
1472	"\n"
1473	"Lbadload: /* Call sRTAssertMsg2Weak. Variadic (...) arguments are passed on the stack it seems. */\n"
1474	" mov x2, x0\n"
1475	" adrp x1, PAGE(g_szLibrary)\n"
1476	"#ifndef ASM_FORMAT_ELF\n"
1477	" add x1, x1, PAGEOFF(g_szLibrary)\n"
1478	"#else\n"
1479	" ldr x1, [x1, PAGEOFF(g_szLibrary)]\n"
1480	"#endif\n"
1481	" adrp x0, PAGE(g_szFailResolveFmt)\n"
1482	"#ifndef ASM_FORMAT_ELF\n"
1483	" add x0, x0, PAGEOFF(g_szFailResolveFmt)\n"
1484	"#else\n"
1485	" ldr x0, [x0, PAGEOFF(g_szFailResolveFmt)]\n"
1486	"#endif\n"
1487	" stp x1, x2, [sp]\n"
1488	" bl NAME(RTAssertMsg2Weak)\n"
1489	"Lbadloadloop:\n"
1490	" brk #0x1\n"
1491	" b Lbadloadloop\n"
1492	"Lload_return:\n"
1493	" adrp x0, PAGE(g_hMod)\n"
1494	" ldr x0, [x0, PAGEOFF(g_hMod)]\n"
1495	" ldp x29, x30, [sp, #48]\n"
1496	" .cfi_restore x29\n"
1497	" .cfi_restore x30\n"
1498	" add sp, sp, #(16 + 48)\n"
1499	" ret\n"
1500	" .cfi_endproc\n"
1501	"ENDCODE\n"
1502	"\n"
1503	"\n");
1504
1505	/*
1506	* C callable method for explicitly loading the library and optionally
1507	* resolving all the imports.
1508	*/
1509	if (g_fWithExplictLoadFunction)
1510	{
1511	int cchLibBaseName = (int)(strchr(g_pszLibrary, '.') ? strchr(g_pszLibrary, '.') - g_pszLibrary : strlen(g_pszLibrary));
1512	fprintf(pOutput,
1513	"/**\n"
1514	" * ExplicitlyLoad%.*s(bool fResolveAllImports, pErrInfo);\n"
1515	" */\n"
1516	"BEGINCODE\n"
1517	".p2align 3\n"
1518	".globl NAME(ExplicitlyLoad%.*s)\n"
1519	"NAME(ExplicitlyLoad%.*s):\n"
1520	" .cfi_startproc\n"
1521	" /* Create frame. */\n"
1522	" sub sp, sp, #(16 + 96)\n"
1523	" stp x29, x30, [sp, #96]\n"
1524	" add x29, sp, #96\n"
1525	" .cfi_def_cfa x29, 16\n"
1526	" .cfi_offset x30, -8\n"
1527	" .cfi_offset x29, -16\n"
1528	"\n"
1529	" stp x20, x21, [sp, #(96 - 16)]\n"
1530	" .cfi_offset x21, -24\n"
1531	" .cfi_offset x20, -32\n"
1532	" stp x22, x23, [sp, #(96 - 32)]\n"
1533	" .cfi_offset x23, -40\n"
1534	" .cfi_offset x22, -48\n"
1535
1536	" /* Save the input parameters. */\n"
1537	" mov x20, x0\n"
1538	" mov x21, x1\n"
1539	"\n"
1540	" /*\n"
1541	" * Is the module already loaded?\n"
1542	" */\n"
1543	" adrp x0, PAGE(g_hMod)\n"
1544	" ldr x0, [x0, PAGEOFF(g_hMod)]\n"
1545	" cmp x0, #0\n"
1546	" b.ne Lexplicit_loaded_module\n"
1547	"\n"
1548	,
1549	cchLibBaseName, g_pszLibrary,
1550	cchLibBaseName, g_pszLibrary,
1551	cchLibBaseName, g_pszLibrary);
1552	fprintf(pOutput,
1553	"Lexplicit_load_module:\n");
1554	if (!g_fSystemLibrary)
1555	fprintf(pOutput,
1556	" /* Call SUPR3HardenedLdrLoadAppPriv(const char pszFilename, PRTLDRMOD phLdrMod, uint32_t fFlags, PRTERRINFO pErrInfo); /\n"
1557	" mov x3, x21\n"
1558	" mov x2, #0\n"
1559	" adrp x1, PAGE(g_hMod)\n"
1560	"#ifndef ASM_FORMAT_ELF\n"
1561	" add x1, x1, PAGEOFF(g_hMod)\n"
1562	"#else\n"
1563	" ldr x1, [x1, PAGEOFF(g_hMod)]\n"
1564	"#endif\n"
1565	" adrp x0, PAGE(g_szLibrary)\n"
1566	"#ifndef ASM_FORMAT_ELF\n"
1567	" add x0, x0, PAGEOFF(g_szLibrary)\n"
1568	"#else\n"
1569	" ldr x0, [x0, PAGEOFF(g_szLibrary)]\n"
1570	"#endif\n"
1571	" bl NAME(SUPR3HardenedLdrLoadAppPriv)\n");
1572	else
1573	fprintf(pOutput,
1574	" /* Call RTLdrLoadSystem(const char pszFilename, bool fNoUnload, PRTLDRMOD phLdrMod); /\n"
1575	" adrp x2, PAGE(g_hMod)\n"
1576	"#ifndef ASM_FORMAT_ELF\n"
1577	" add x2, x2, PAGEOFF(g_hMod)\n"
1578	"#else\n"
1579	" ldr x2, [x2, PAGEOFF(g_hMod)]\n"
1580	"#endif\n"
1581	" mov x1, #1\n"
1582	" adrp x0, PAGE(g_szLibrary)\n"
1583	"#ifndef ASM_FORMAT_ELF\n"
1584	" add x0, x0, PAGEOFF(g_szLibrary)\n"
1585	"#else\n"
1586	" ldr x0, [x0, PAGEOFF(g_szLibrary)]\n"
1587	"#endif\n"
1588	" bl NAME(RTLdrLoadSystem)\n");
1589	fprintf(pOutput,
1590	" cmp x0, #0\n"
1591	" b.ne Lexplicit_load_return\n"
1592	"\n");
1593
1594	fprintf(pOutput,
1595	" /*\n"
1596	" * Resolve the imports too if requested to do so.\n"
1597	" */\n"
1598	"Lexplicit_loaded_module:\n"
1599	" cmp w20, #0\n"
1600	" b.eq Lexplicit_load_return\n"
1601	"\n"
1602	" adrp x22, PAGE(g_szzNames)\n"
1603	"#ifndef ASM_FORMAT_ELF\n"
1604	" add x22, x22, PAGEOFF(g_szzNames)\n"
1605	"#else\n"
1606	" ldr x22, [x22, PAGEOFF(g_szzNames)]\n"
1607	"#endif\n"
1608	" adrp x23, PAGE(g_apfnImports)\n"
1609	"#ifndef ASM_FORMAT_ELF\n"
1610	" add x23, x23, PAGEOFF(g_apfnImports)\n"
1611	"#else\n"
1612	" ldr x23, [x23, PAGEOFF(g_apfnImports)]\n"
1613	"#endif\n"
1614	"Lexplicit_load_next_import:\n"
1615	" ldr x0, [x23]\n"
1616	" cmp x0, #0\n"
1617	" b.eq Lexplicit_load_return\n"
1618	"\n"
1619	" /* Get the module handle and call RTLdrGetSymbol(RTLDRMOD hLdrMod, const char pszSymbol, void ppvValue) /\n"
1620	" adrp x0, PAGE(g_hMod)\n"
1621	" ldr x0, [x0, PAGEOFF(g_hMod)]\n"
1622	" mov x1, x22\n"
1623	" mov x2, x23\n"
1624	" bl NAME(RTLdrGetSymbol)\n"
1625	" cmp x0, #0\n"
1626	" b.ne Lexplicit_load_symbol_error\n"
1627	"\n"
1628	" /* Advance. */\n"
1629	" add x23, x23, #8\n"
1630	"Lexplict_load_advance_string:\n"
1631	" ldrb w0, [x22]\n"
1632	" add x22, x22, #1\n"
1633	" cmp w0, #0\n"
1634	" b.ne Lexplict_load_advance_string\n"
1635	" b Lexplicit_load_next_import\n"
1636	"\n"
1637	" /*\n"
1638	" * Error loading a symbol. Call RTErrInfoSet(PRTERRINFO pErrInfo, int rc, const char *pszMsg) on pErrInfo (preserves x0).\n"
1639	" */\n"
1640	"Lexplicit_load_symbol_error:\n"
1641	" mov x2, x22\n"
1642	" mov x1, x0\n"
1643	" mov x0, x21\n"
1644	" bl NAME(RTErrInfoSet)\n"
1645	" b Lexplicit_load_return"
1646	" "
1647	"\n"
1648	"Lexplicit_load_return:\n"
1649	" ldp x22, x23, [sp, #(96 - 32)]\n"
1650	" .cfi_restore x23\n"
1651	" .cfi_restore x22\n"
1652	" ldp x20, x21, [sp, #(96 - 16)]\n"
1653	" .cfi_restore x21\n"
1654	" .cfi_restore x20\n"
1655	"\n"
1656	" ldp x29, x30, [sp, #96]\n"
1657	" .cfi_restore x29\n"
1658	" .cfi_restore x30\n"
1659	" add sp, sp, #(16 + 96)\n"
1660	" ret\n"
1661	" .cfi_endproc\n"
1662	"ENDCODE\n"
1663	"\n"
1664	"\n");
1665	}
1666
1667	return RTEXITCODE_SUCCESS;
1668	}
1669
1670
1671	/**
1672	* Generates the assembly source code, writing it to g_pszOutput.
1673	*
1674	* @returns RTEXITCODE_SUCCESS or RTEXITCODE_FAILURE, in the latter case full
1675	* details has been displayed.
1676	*/
1677	static RTEXITCODE generateOutput(void)
1678	{
1679	RTEXITCODE rcExit = RTEXITCODE_FAILURE;
1680	FILE *pOutput = fopen(g_pszOutput, "w");
1681	if (pOutput)
1682	{
1683	switch (g_enmTarget)
1684	{
1685	case RTLDRARCH_AMD64:
1686	case RTLDRARCH_X86_32:
1687	rcExit = generateOutputInnerX86AndAMD64(pOutput);
1688	break;
1689	case RTLDRARCH_ARM64:
1690	rcExit = generateOutputInnerArm64(pOutput);
1691	break;
1692	default:
1693	rcExit = RTEXITCODE_FAILURE;
1694	break;
1695	}
1696	if (fclose(pOutput))
1697	{
1698	fprintf(stderr, "error: Error closing '%s'.\n", g_pszOutput);
1699	rcExit = RTEXITCODE_FAILURE;
1700	}
1701	}
1702	else
1703	fprintf(stderr, "error: Failed to open '%s' for writing.\n", g_pszOutput);
1704	return rcExit;
1705	}
1706
1707
1708	/**
1709	* Displays usage information.
1710	*
1711	* @returns RTEXITCODE_SUCCESS.
1712	* @param pszArgv0 The argv[0] string.
1713	*/
1714	static int usage(const char *pszArgv0)
1715	{
1716	const char *pszTmp = strrchr(pszArgv0, '/');
1717	if (pszTmp)
1718	pszArgv0 = pszTmp + 1;
1719	pszTmp = strrchr(pszArgv0, '\\');
1720	if (pszTmp)
1721	pszArgv0 = pszTmp + 1;
1722
1723	/* 0 1 2 3 4 5 6 7 8
1724	012345678901234567890123456789012345678901234567890123456789012345678901234567890 */
1725	printf("VBoxDef2LazyLoad - Lazy DLL/SO/DYLIB loader code generator.\n"
1726	"Copyright (C) 2013-2016 Oracle Corporation\n"
1727	"\n"
1728	"Description:\n"
1729	"------------\n"
1730	"\n"
1731	"Takes a Microsoft-style linker definition file for a library (DLL/SO/DYLIB) and\n"
1732	"generates assembly code which defines stub functions that lazily loads and\n"
1733	"resolves the real symbols before calling them. This is entirely transparent when\n"
1734	"used with functions.\n"
1735	"\n"
1736	"With data symbols it's more messy since the compiler will not invoke code when\n"
1737	"using them, but access them directly (ELF executables) or indirectly (ELF SOs,\n"
1738	"PE, ++). For data symbols use the DATA keyword after the symbol name in the\n"
1739	"def-file and modify the header definition from 'extern type symbol;' to:\n"
1740	"\n"
1741	" DECLASM(type *) LazyGetPtr_<symbol>(void);\n"
1742	" #define <symbol> (*LazyGetPtr_<symbol>())\n"
1743	"\n"
1744	"or, if using --explict-load-function this will work as well:\n"
1745	"\n"
1746	" extern type *g_LazyPtr_<symbol>;\n"
1747	" #define <symbol> (*g_LazyPtr_)\n"
1748	"\n"
1749	"Usage:\n"
1750	"------\n"
1751	"%s [options] --libary <loadname> --output <lazyload.asm> <input.def>\n"
1752	"\n"
1753	"Options:\n"
1754	"--------\n"
1755	" --library <loadname>, -l <loadname>\n"
1756	" The name of the library. This is what will be passed to RTLdrLoadSystem\n"
1757	" or SUPR3HardenedLdrLoadAppPriv.\n"
1758	" --output <filename>, -o <filename>\n"
1759	" The assembly output file.\n"
1760	" --explicit-load-function, --no-explicit-load-function\n"
1761	" Whether to include the explicit load function:\n"
1762	" DECLASM(int) ExplicitlyLoad<basename>(bool fResolveAllImports, pErrInfo);\n"
1763	" The default is not to include it.\n"
1764	" --system\n"
1765	" The library is a system DLL to be loaded using RTLdrLoadSystem.\n"
1766	" The default is to use SUPR3HardenedLdrLoadAppPriv to load it.\n"
1767	"\n"
1768	, pszArgv0);
1769
1770	return RTEXITCODE_SUCCESS;
1771	}
1772
1773
1774	int main(int argc, char **argv)
1775	{
1776	/*
1777	* Parse options.
1778	*/
1779	for (int i = 1; i < argc; i++)
1780	{
1781	const char *psz = argv[i];
1782	if (*psz == '-')
1783	{
1784	if (!strcmp(psz, "--output") \|\| !strcmp(psz, "-o"))
1785	{
1786	if (++i >= argc)
1787	{
1788	fprintf(stderr, "syntax error: File name expected after '%s'.\n", psz);
1789	return RTEXITCODE_SYNTAX;
1790	}
1791	g_pszOutput = argv[i];
1792	}
1793	else if (!strcmp(psz, "--library") \|\| !strcmp(psz, "-l"))
1794	{
1795	if (++i >= argc)
1796	{
1797	fprintf(stderr, "syntax error: Library name expected after '%s'.\n", psz);
1798	return RTEXITCODE_SYNTAX;
1799	}
1800	g_pszLibrary = argv[i];
1801	}
1802	else if (!strcmp(psz, "--explicit-load-function"))
1803	g_fWithExplictLoadFunction = true;
1804	else if (!strcmp(psz, "--no-explicit-load-function"))
1805	g_fWithExplictLoadFunction = false;
1806	else if (!strcmp(psz, "--system"))
1807	g_fSystemLibrary = true;
1808	/** @todo Support different load methods so this can be used on system libs and
1809	* such if we like. */
1810	else if ( !strcmp(psz, "--help")
1811	\|\| !strcmp(psz, "-help")
1812	\|\| !strcmp(psz, "-h")
1813	\|\| !strcmp(psz, "-?") )
1814	return usage(argv[0]);
1815	else if ( !strcmp(psz, "--version")
1816	\|\| !strcmp(psz, "-V"))
1817	{
1818	printf("$Revision: 104213 $\n");
1819	return RTEXITCODE_SUCCESS;
1820	}
1821	else
1822	{
1823	fprintf(stderr, "syntax error: Unknown option '%s'.\n", psz);
1824	return RTEXITCODE_SYNTAX;
1825	}
1826	}
1827	else
1828	{
1829	if (g_cInputs >= RT_ELEMENTS(g_apszInputs))
1830	{
1831	fprintf(stderr, "syntax error: Too many input files, max is %d.\n", (int)RT_ELEMENTS(g_apszInputs));
1832	return RTEXITCODE_SYNTAX;
1833	}
1834	g_apszInputs[g_cInputs++] = argv[i];
1835	}
1836	}
1837	if (g_cInputs == 0)
1838	{
1839	fprintf(stderr, "syntax error: No input file specified.\n");
1840	return RTEXITCODE_SYNTAX;
1841	}
1842	if (!g_pszOutput)
1843	{
1844	fprintf(stderr, "syntax error: No output file specified.\n");
1845	return RTEXITCODE_SYNTAX;
1846	}
1847	if (!g_pszLibrary)
1848	{
1849	fprintf(stderr, "syntax error: No library name specified.\n");
1850	return RTEXITCODE_SYNTAX;
1851	}
1852
1853	/*
1854	* Do the job.
1855	*/
1856	RTEXITCODE rcExit = parseInputs();
1857	if (rcExit == RTEXITCODE_SUCCESS)
1858	rcExit = generateOutput();
1859	return rcExit;
1860	}
1861

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source: vbox/trunk/src/bldprogs/VBoxDef2LazyLoad.cpp@ 105352

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