Author: hailfinger Date: Wed May 4 02:39:50 2011 New Revision: 1293 URL: http://flashrom.org/trac/flashrom/changeset/1293
Log: Constify flashchips array. This moves 99.5% of the .data section to .rodata (which ends up in .text). Signed-off-by: Carl-Daniel Hailfinger <[email protected]> Acked-by: Stefan Reinauer <[email protected]> Modified: trunk/cli_classic.c trunk/flash.h trunk/flashchips.c trunk/flashrom.c trunk/print.c trunk/print_wiki.c trunk/programmer.h Modified: trunk/cli_classic.c ============================================================================== --- trunk/cli_classic.c Tue May 3 23:49:41 2011 (r1292) +++ trunk/cli_classic.c Wed May 4 02:39:50 2011 (r1293) @@ -100,7 +100,11 @@ { unsigned long size; /* Probe for up to three flash chips. */ - struct flashchip *flash, *flashes[3]; + const struct flashchip *flash; + struct flashchip flashes[3]; + struct flashchip *fill_flash; + int startchip = 0; + int chipcount = 0; const char *name; int namelen; int opt; @@ -359,49 +363,47 @@ exit(1); } - /* FIXME: Delay calibration should happen in programmer code. */ for (i = 0; i < ARRAY_SIZE(flashes); i++) { - flashes[i] = - probe_flash(i ? flashes[i - 1] + 1 : flashchips, 0); - if (!flashes[i]) - for (i++; i < ARRAY_SIZE(flashes); i++) - flashes[i] = NULL; + startchip = probe_flash(startchip, &flashes[i], 0); + if (startchip == -1) + break; + chipcount++; } - if (flashes[1]) { + if (chipcount > 1) { printf("Multiple flash chips were detected:"); - for (i = 0; i < ARRAY_SIZE(flashes) && flashes[i]; i++) - printf(" %s", flashes[i]->name); + for (i = 0; i < chipcount; i++) + printf(" %s", flashes[i].name); printf("\nPlease specify which chip to use with the -c <chipname> option.\n"); programmer_shutdown(); exit(1); - } else if (!flashes[0]) { + } else if (!chipcount) { printf("No EEPROM/flash device found.\n"); if (!force || !chip_to_probe) { printf("Note: flashrom can never write if the flash chip isn't found automatically.\n"); } if (force && read_it && chip_to_probe) { printf("Force read (-f -r -c) requested, pretending the chip is there:\n"); - flashes[0] = probe_flash(flashchips, 1); - if (!flashes[0]) { + startchip = probe_flash(0, &flashes[0], 1); + if (startchip == -1) { printf("Probing for flash chip '%s' failed.\n", chip_to_probe); programmer_shutdown(); exit(1); } printf("Please note that forced reads most likely contain garbage.\n"); - return read_flash_to_file(flashes[0], filename); + return read_flash_to_file(&flashes[0], filename); } // FIXME: flash writes stay enabled! programmer_shutdown(); exit(1); } - flash = flashes[0]; + fill_flash = &flashes[0]; - check_chip_supported(flash); + check_chip_supported(fill_flash); - size = flash->total_size * 1024; - if (check_max_decode((buses_supported & flash->bustype), size) && + size = fill_flash->total_size * 1024; + if (check_max_decode((buses_supported & fill_flash->bustype), size) && (!force)) { fprintf(stderr, "Chip is too big for this programmer " "(-V gives details). Use --force to override.\n"); @@ -432,5 +434,5 @@ * Give the chip time to settle. */ programmer_delay(100000); - return doit(flash, force, filename, read_it, write_it, erase_it, verify_it); + return doit(fill_flash, force, filename, read_it, write_it, erase_it, verify_it); } Modified: trunk/flash.h ============================================================================== --- trunk/flash.h Tue May 3 23:49:41 2011 (r1292) +++ trunk/flash.h Wed May 4 02:39:50 2011 (r1293) @@ -173,7 +173,7 @@ #define TIMING_IGNORED -1 #define TIMING_ZERO -2 -extern struct flashchip flashchips[]; +extern const struct flashchip flashchips[]; /* print.c */ char *flashbuses_to_text(enum chipbustype bustype); @@ -193,7 +193,7 @@ void map_flash_registers(struct flashchip *flash); int read_memmapped(struct flashchip *flash, uint8_t *buf, int start, int len); int erase_flash(struct flashchip *flash); -struct flashchip *probe_flash(struct flashchip *first_flash, int force); +int probe_flash(int startchip, struct flashchip *fill_flash, int force); int read_flash_to_file(struct flashchip *flash, char *filename); int min(int a, int b); int max(int a, int b); Modified: trunk/flashchips.c ============================================================================== --- trunk/flashchips.c Tue May 3 23:49:41 2011 (r1292) +++ trunk/flashchips.c Wed May 4 02:39:50 2011 (r1293) @@ -32,7 +32,7 @@ * Please keep the list sorted by vendor name and chip name, so that * the output of 'flashrom -L' is alphabetically sorted. */ -struct flashchip flashchips[] = { +const struct flashchip flashchips[] = { /* * .vendor = Vendor name Modified: trunk/flashrom.c ============================================================================== --- trunk/flashrom.c Tue May 3 23:49:41 2011 (r1292) +++ trunk/flashrom.c Wed May 4 02:39:50 2011 (r1293) @@ -1109,16 +1109,16 @@ return 1; } -struct flashchip *probe_flash(struct flashchip *first_flash, int force) +int probe_flash(int startchip, struct flashchip *fill_flash, int force) { - struct flashchip *flash; + const struct flashchip *flash; unsigned long base = 0; char location[64]; uint32_t size; enum chipbustype buses_common; char *tmp; - for (flash = first_flash; flash && flash->name; flash++) { + for (flash = flashchips + startchip; flash && flash->name; flash++) { if (chip_to_probe && strcmp(flash->name, chip_to_probe) != 0) continue; msg_gdbg("Probing for %s %s, %d KB: ", @@ -1145,25 +1145,35 @@ size = flash->total_size * 1024; check_max_decode(buses_common, size); + /* Start filling in the dynamic data. */ + *fill_flash = *flash; + base = flashbase ? flashbase : (0xffffffff - size + 1); - flash->virtual_memory = (chipaddr)programmer_map_flash_region("flash chip", base, size); + fill_flash->virtual_memory = (chipaddr)programmer_map_flash_region("flash chip", base, size); if (force) break; - if (flash->probe(flash) != 1) + if (fill_flash->probe(fill_flash) != 1) goto notfound; - if (first_flash == flashchips - || flash->model_id != GENERIC_DEVICE_ID) + /* If this is the first chip found, accept it. + * If this is not the first chip found, accept it only if it is + * a non-generic match. + * We could either make chipcount global or provide it as + * parameter, or we assume that startchip==0 means this call to + * probe_flash() is the first one and thus no chip has been + * found before. + */ + if (startchip == 0 || fill_flash->model_id != GENERIC_DEVICE_ID) break; notfound: - programmer_unmap_flash_region((void *)flash->virtual_memory, size); + programmer_unmap_flash_region((void *)fill_flash->virtual_memory, size); } if (!flash || !flash->name) - return NULL; + return -1; #if CONFIG_INTERNAL == 1 if (programmer_table[programmer].map_flash_region == physmap) @@ -1181,10 +1191,11 @@ * may be stored in registers, so avoid lock info printing. */ if (!force) - if (flash->printlock) - flash->printlock(flash); + if (fill_flash->printlock) + fill_flash->printlock(fill_flash); - return flash; + /* Return position of matching chip. */ + return flash - flashchips; } int verify_flash(struct flashchip *flash, uint8_t *buf) @@ -1293,7 +1304,7 @@ * walk_eraseregions(). * Even if an error is found, the function will keep going and check the rest. */ -static int selfcheck_eraseblocks(struct flashchip *flash) +static int selfcheck_eraseblocks(const struct flashchip *flash) { int i, j, k; int ret = 0; @@ -1670,7 +1681,7 @@ int selfcheck(void) { int ret = 0; - struct flashchip *flash; + const struct flashchip *flash; /* Safety check. Instead of aborting after the first error, check * if more errors exist. @@ -1689,7 +1700,7 @@ return ret; } -void check_chip_supported(struct flashchip *flash) +void check_chip_supported(const struct flashchip *flash) { if (TEST_OK_MASK != (flash->tested & TEST_OK_MASK)) { msg_cinfo("===\n"); Modified: trunk/print.c ============================================================================== --- trunk/print.c Tue May 3 23:49:41 2011 (r1292) +++ trunk/print.c Wed May 4 02:39:50 2011 (r1293) @@ -78,7 +78,7 @@ { int okcol = 0, pos = 0, i, chipcount = 0; int maxchiplen = 0, maxvendorlen = 0; - struct flashchip *f; + const struct flashchip *f; for (f = flashchips; f->name != NULL; f++) { /* Ignore "unknown XXXX SPI chip" entries. */ Modified: trunk/print_wiki.c ============================================================================== --- trunk/print_wiki.c Tue May 3 23:49:41 2011 (r1292) +++ trunk/print_wiki.c Wed May 4 02:39:50 2011 (r1293) @@ -201,7 +201,7 @@ static void print_supported_chips_wiki(int cols) { int i = 0, c = 1, chipcount = 0; - struct flashchip *f, *old = NULL; + const struct flashchip *f, *old = NULL; uint32_t t; for (f = flashchips; f->name != NULL; f++) Modified: trunk/programmer.h ============================================================================== --- trunk/programmer.h Tue May 3 23:49:41 2011 (r1292) +++ trunk/programmer.h Wed May 4 02:39:50 2011 (r1293) @@ -515,7 +515,7 @@ extern struct decode_sizes max_rom_decode; extern int programmer_may_write; extern unsigned long flashbase; -void check_chip_supported(struct flashchip *flash); +void check_chip_supported(const struct flashchip *flash); int check_max_decode(enum chipbustype buses, uint32_t size); char *extract_programmer_param(char *param_name); _______________________________________________ flashrom mailing list [email protected] http://www.flashrom.org/mailman/listinfo/flashrom
