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1a5c423984
With permission from the main authors [1], most of the code has been relicensed under the MIT license. SPDX license identifiers are used so that the license headers in source code files aren't too large. Add CONTRIBUTORS.rst file. [1] https://github.com/rednex/rgbds/issues/128 Signed-off-by: Antonio Niño Díaz <antonio_nd@outlook.com>
123 lines
2.4 KiB
C
123 lines
2.4 KiB
C
/*
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* This file is part of RGBDS.
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*
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* Copyright (c) 1997-2018, Carsten Sorensen and RGBDS contributors.
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*
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* SPDX-License-Identifier: MIT
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*/
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "extern/err.h"
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#include "link/mylink.h"
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#include "link/main.h"
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static uint8_t symboldefined(char *name)
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{
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const struct sSection *pSect;
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pSect = pSections;
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while (pSect) {
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int32_t i;
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for (i = 0; i < pSect->nNumberOfSymbols; i += 1) {
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const struct sSymbol *tSymbol = pSect->tSymbols[i];
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if ((tSymbol->Type == SYM_EXPORT)
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|| ((tSymbol->Type == SYM_LOCAL)
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&& (pSect == tSymbol->pSection))) {
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if (strcmp(tSymbol->pzName, name) == 0)
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return 1;
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}
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}
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pSect = pSect->pNext;
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}
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return 0;
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}
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static uint8_t addmodulecontaining(char *name)
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{
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struct sSection **ppLSect = &pLibSections;
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while (*ppLSect) {
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int32_t i;
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for (i = 0; i < (*ppLSect)->nNumberOfSymbols; i += 1) {
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const struct sSymbol *tSymbol = (*ppLSect)->tSymbols[i];
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if ((tSymbol->Type == SYM_EXPORT)
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|| ((tSymbol->Type == SYM_LOCAL)
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&& ((*ppLSect) == tSymbol->pSection))) {
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if (strcmp(tSymbol->pzName, name) == 0) {
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struct sSection **ppSect = &pSections;
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while (*ppSect)
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ppSect = &((*ppSect)->pNext);
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*ppSect = *ppLSect;
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*ppLSect = (*ppLSect)->pNext;
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(*ppSect)->pNext = NULL;
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return 1;
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}
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}
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}
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ppLSect = &((*ppLSect)->pNext);
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}
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return 0;
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}
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void AddNeededModules(void)
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{
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struct sSection *pSect;
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if ((options & OPT_SMART_C_LINK) == 0) {
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struct sSection **ppLSect;
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ppLSect = &pLibSections;
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while (*ppLSect) {
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struct sSection **ppSect = &pSections;
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while (*ppSect)
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ppSect = &((*ppSect)->pNext);
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*ppSect = *ppLSect;
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*ppLSect = (*ppLSect)->pNext;
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(*ppSect)->pNext = NULL;
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/* ppLSect=&((*ppLSect)->pNext); */
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}
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return;
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}
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if (options & OPT_SMART_C_LINK) {
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if (!addmodulecontaining(smartlinkstartsymbol)) {
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errx(1, "Can't find start symbol '%s'",
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smartlinkstartsymbol);
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} else {
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printf("Smart linking with symbol '%s'\n",
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smartlinkstartsymbol);
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}
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}
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pSect = pSections;
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while (pSect) {
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int32_t i;
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for (i = 0; i < pSect->nNumberOfSymbols; i += 1) {
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if ((pSect->tSymbols[i]->Type == SYM_IMPORT)
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|| (pSect->tSymbols[i]->Type == SYM_LOCAL)) {
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if (!symboldefined(pSect->tSymbols[i]->pzName))
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addmodulecontaining(pSect->tSymbols[i]->pzName);
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}
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}
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pSect = pSect->pNext;
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}
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}
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