ref: 359a048b6e235aab6e330fc6f85b118da0e9e046
parent: f2be601a137a145e7b56bb8c40768820d8cdd536
author: ISSOtm <eldredhabert0@gmail.com>
date: Mon Jan 13 10:25:25 EST 2020
Bump object version number We're about to break the format, so let's do this
--- a/src/link/object.c
+++ b/src/link/object.c
@@ -427,6 +427,99 @@
}
/**
+ * Reads a RGB7 object file.
+ * @param file The file to read from
+ * @param fileName The filename to report in errors
+ */
+static void readRGB7File(FILE *file, char const *fileName)
+{+ uint32_t nbSymbols;
+ uint32_t nbSections;
+
+ tryReadlong(nbSymbols, file, "%s: Cannot read number of symbols: %s",
+ fileName);
+ tryReadlong(nbSections, file, "%s: Cannot read number of sections: %s",
+ fileName);
+
+ nbSectionsToAssign += nbSections;
+
+ /* This file's symbols, kept to link sections to them */
+ struct Symbol **fileSymbols =
+ malloc(sizeof(*fileSymbols) * nbSymbols + 1);
+
+ if (!fileSymbols)
+ err(1, "Failed to get memory for %s's symbols", fileName);
+
+ struct SymbolList *symbolList = malloc(sizeof(*symbolList));
+
+ if (!symbolList)
+ err(1, "Failed to register %s's symbol list", fileName);
+ symbolList->symbolList = fileSymbols;
+ symbolList->nbSymbols = nbSymbols;
+ symbolList->next = symbolLists;
+ symbolLists = symbolList;
+
+ uint32_t nbSymPerSect[nbSections ? nbSections : 1];
+
+ memset(nbSymPerSect, 0, sizeof(nbSymPerSect));
+
+ verbosePrint("Reading %u symbols...\n", nbSymbols);+ for (uint32_t i = 0; i < nbSymbols; i++) {+ /* Read symbol */
+ struct Symbol *symbol = malloc(sizeof(*symbol));
+
+ if (!symbol)
+ err(1, "%s: Couldn't create new symbol", fileName);
+ readSymbol(file, symbol, fileName);
+
+ fileSymbols[i] = symbol;
+ if (symbol->type == SYMTYPE_EXPORT)
+ sym_AddSymbol(symbol);
+ if (symbol->sectionID != -1)
+ nbSymPerSect[symbol->sectionID]++;
+ }
+
+ /* This file's sections, stored in a table to link symbols to them */
+ struct Section *fileSections[nbSections ? nbSections : 1];
+
+ verbosePrint("Reading %u sections...\n", nbSections);+ for (uint32_t i = 0; i < nbSections; i++) {+ /* Read section */
+ struct Section *section = malloc(sizeof(*section));
+
+ if (!section)
+ err(1, "%s: Couldn't create new section", fileName);
+ readSection(file, section, fileName);
+ section->fileSymbols = fileSymbols;
+
+ sect_AddSection(section);
+ fileSections[i] = section;
+ if (nbSymPerSect[i]) {+ section->symbols = malloc(sizeof(*section->symbols)
+ * nbSymPerSect[i]);
+ if (!section->symbols)
+ err(1, "%s: Couldn't link to symbols");
+ } else {+ section->symbols = NULL;
+ }
+ section->nbSymbols = 0;
+ }
+
+ /* Give symbols pointers to their sections */
+ for (uint32_t i = 0; i < nbSymbols; i++) {+ int32_t sectionID = fileSymbols[i]->sectionID;
+
+ if (sectionID == -1) {+ fileSymbols[i]->section = NULL;
+ } else {+ fileSymbols[i]->section = fileSections[sectionID];
+ /* Give the section a pointer to the symbol as well */
+ linkSymToSect(fileSymbols[i], fileSections[sectionID]);
+ }
+ }
+}
+
+/**
* Reads an object file of any supported format
* @param fileName The filename to report for errors
*/
@@ -446,16 +539,24 @@
if (matchedElems != 1)
errx(1, "\"%s\" is not a RGBDS object file", fileName);
- /* TODO: support other versions? */
- if (versionNumber != 6)
- errx(1, "\"%s\" is an incompatible version %hhu object file",
- fileName, versionNumber);
verbosePrint("Reading object file %s, version %hhu\n",fileName, versionNumber);
- readRGB6File(file, fileName);
+ switch (versionNumber) {+ case 6:
+ readRGB6File(file, fileName);
+ break;
+ case 7:
+ readRGB7File(file, fileName);
+ break;
+
+ /* TODO: support older versions? */
+ default:
+ errx(1, "\"%s\" is an incompatible version %hhu object file",
+ fileName, versionNumber);
+ }
fclose(file);
}
--- a/src/rgbds.5
+++ b/src/rgbds.5
@@ -33,7 +33,7 @@
.Bd -literal
; Header
-BYTE ID[4] ; "RGB6"
+BYTE ID[4] ; "RGB7"
LONG NumberOfSymbols ; The number of symbols used in this file
LONG NumberOfSections ; The number of sections used in this file