Uno Q - sbrk is undefined in Dynamic build #306
Description
Describe the bug
SDFat example bench - does not link for Uno Q (current sources) if Link mode is dynamic. It does build and run
when built with Static link.
Target board + cli verbose compilation output
Arduino UNO Q
Full verbose compilation output, ideally with arduino-cli invocation or from IDE 2.3.3+
Archiving built core (caching) in: C:\Users\kurte\AppData\Local\arduino\cores\29856817766ebe5adf0fa24f93c0aae7\core.a
Linking everything together...
"C:\\Users\\kurte\\AppData\\Local\\Arduino15\\packages\\zephyr\\tools\\arm-zephyr-eabi\\0.16.8/bin/arm-zephyr-eabi-g++" "-LC:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506" "-LC:\\Users\\kurte\\Documents\\Arduino\\hardware\\arduino-git\\ArduinoCore-zephyr\\variants\\arduino_uno_q_stm32u585xx" -Wl,--gc-sections -mcpu=cortex-m33 -mfloat-abi=hard -mfpu=fpv5-sp-d16 -std=gnu++17 -fno-exceptions -fno-rtti -fno-threadsafe-statics -fno-unwind-tables -fno-use-cxa-atexit -lstdc++ -lsupc++ -lnosys -nostdlib --specs=picolibc.specs --specs=nosys.specs "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\sketch\\sdfat_bench.ino.cpp.o" "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\libraries\\SdFat\\ExFatLib\\ExFatDbg.cpp.o" "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\libraries\\SdFat\\ExFatLib\\ExFatFile.cpp.o" "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\libraries\\SdFat\\ExFatLib\\ExFatFilePrint.cpp.o" "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\libraries\\SdFat\\ExFatLib\\ExFatFileWrite.cpp.o" "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\libraries\\SdFat\\ExFatLib\\ExFatFormatter.cpp.o" "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\libraries\\SdFat\\ExFatLib\\ExFatName.cpp.o" "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\libraries\\SdFat\\ExFatLib\\ExFatPartition.cpp.o" "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\libraries\\SdFat\\ExFatLib\\ExFatVolume.cpp.o" "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\libraries\\SdFat\\FatLib\\FatDbg.cpp.o" "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\libraries\\SdFat\\FatLib\\FatFile.cpp.o" "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\libraries\\SdFat\\FatLib\\FatFileLFN.cpp.o" "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\libraries\\SdFat\\FatLib\\FatFilePrint.cpp.o" "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\libraries\\SdFat\\FatLib\\FatFileSFN.cpp.o" "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\libraries\\SdFat\\FatLib\\FatFormatter.cpp.o" "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\libraries\\SdFat\\FatLib\\FatName.cpp.o" "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\libraries\\SdFat\\FatLib\\FatPartition.cpp.o" "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\libraries\\SdFat\\FatLib\\FatVolume.cpp.o" "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\libraries\\SdFat\\FreeStack.cpp.o" "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\libraries\\SdFat\\FsLib\\FsFile.cpp.o" "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\libraries\\SdFat\\FsLib\\FsNew.cpp.o" "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\libraries\\SdFat\\FsLib\\FsVolume.cpp.o" "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\libraries\\SdFat\\MinimumSerial.cpp.o" "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\libraries\\SdFat\\SdCard\\Rp2040Sdio\\PioSdioCard.cpp.o" "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\libraries\\SdFat\\SdCard\\SdCardInfo.cpp.o" "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\libraries\\SdFat\\SdCard\\SdSpiCard.cpp.o" "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\libraries\\SdFat\\SdCard\\TeensySdio\\TeensySdio.cpp.o" "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\libraries\\SdFat\\SpiDriver\\SdSpiArtemis.cpp.o" "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\libraries\\SdFat\\SpiDriver\\SdSpiChipSelect.cpp.o" "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\libraries\\SdFat\\SpiDriver\\SdSpiDue.cpp.o" "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\libraries\\SdFat\\SpiDriver\\SdSpiParticle.cpp.o" "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\libraries\\SdFat\\SpiDriver\\SdSpiSTM32.cpp.o" "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\libraries\\SdFat\\SpiDriver\\SdSpiSTM32Core.cpp.o" "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\libraries\\SdFat\\SpiDriver\\SdSpiTeensy3.cpp.o" "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\libraries\\SdFat\\common\\FmtNumber.cpp.o" "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\libraries\\SdFat\\common\\FsCache.cpp.o" "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\libraries\\SdFat\\common\\FsDateTime.cpp.o" "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\libraries\\SdFat\\common\\FsName.cpp.o" "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\libraries\\SdFat\\common\\FsStructs.cpp.o" "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\libraries\\SdFat\\common\\FsUtf.cpp.o" "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\libraries\\SdFat\\common\\PrintBasic.cpp.o" "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\libraries\\SdFat\\common\\upcase.cpp.o" "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\libraries\\SdFat\\iostream\\StdioStream.cpp.o" "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\libraries\\SdFat\\iostream\\StreamBaseClass.cpp.o" "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\libraries\\SdFat\\iostream\\istream.cpp.o" "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\libraries\\SdFat\\iostream\\ostream.cpp.o" "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\libraries\\SPI\\SPI.cpp.o" "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506\\core\\analogReference.cpp.o" -Wl,--start-group "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506/core\\core.a" -lstdc++ -lsupc++ -Wl,--end-group -e main "-TC:\\Users\\kurte\\Documents\\Arduino\\hardware\\arduino-git\\ArduinoCore-zephyr\\variants\\arduino_uno_q_stm32u585xx/syms-dynamic.ld" "-TC:\\Users\\kurte\\Documents\\Arduino\\hardware\\arduino-git\\ArduinoCore-zephyr/variants/_ldscripts/memory-check.ld" "-TC:\\Users\\kurte\\Documents\\Arduino\\hardware\\arduino-git\\ArduinoCore-zephyr/variants/_ldscripts/build-static.ld" -o "C:\\Users\\kurte\\AppData\\Local\\arduino\\sketches\\EFB3371F9EB223AB1B72441A6728A506/sdfat_bench.ino_check.tmp"
c:/users/kurte/appdata/local/arduino15/packages/zephyr/tools/arm-zephyr-eabi/0.16.8/bin/../lib/gcc/arm-zephyr-eabi/12.2.0/../../../../arm-zephyr-eabi/bin/ld.exe: C:\Users\kurte\AppData\Local\arduino\sketches\EFB3371F9EB223AB1B72441A6728A506\sketch\sdfat_bench.ino.cpp.o: in function `loop':
c:\Users\kurte\Documents\Arduino\Arduino_UNOQ\sdfat_bench/sdfat_bench.ino:235: undefined reference to `sbrk'
collect2.exe: error: ld returned 1 exit status
Using library SdFat at version 2.3.0 in folder: C:\Users\kurte\Documents\Arduino\libraries\SdFat
Using library SPI in folder: C:\Users\kurte\Documents\Arduino\hardware\arduino-git\ArduinoCore-zephyr\libraries\SPI (legacy)
exit status 1
Compilation error: exit status 1
Mandatory: attach the sketch
/*
* This program is a simple binary write/read benchmark.
*/
#define DISABLE_FS_H_WARNING // Disable warning for type File not defined.
#include "SdFat.h"
#include "FreeStack.h"
#include "sdios.h"
// SD_FAT_TYPE = 0 for SdFat/File as defined in SdFatConfig.h,
// 1 for FAT16/FAT32, 2 for exFAT, 3 for FAT16/FAT32 and exFAT.
#define SD_FAT_TYPE 3
#if defined __has_include
#if __has_include(<FS.h>)
#define SD_FAT_TYPE 3 // Can't use SdFat/File
#endif // __has_include(<FS.h>)
#endif // defined __has_include
#ifndef SD_FAT_TYPE
#define SD_FAT_TYPE 0 // Use SdFat/File
#endif // SD_FAT_TYPE
/*
Change the value of SD_CS_PIN if you are using SPI and
your hardware does not use the default value, SS.
Common values are:
Arduino Ethernet shield: pin 4
Sparkfun SD shield: pin 8
Adafruit SD shields and modules: pin 10
*/
// SDCARD_SS_PIN is defined for the built-in SD on some boards.
#define SDCARD_SS_PIN 8
#ifndef SDCARD_SS_PIN
const uint8_t SD_CS_PIN = SS;
#else // SDCARD_SS_PIN
// Assume built-in SD is used.
const uint8_t SD_CS_PIN = SDCARD_SS_PIN;
#endif // SDCARD_SS_PIN
// Try max SPI clock for an SD. Reduce SPI_CLOCK if errors occur.
#define SPI_CLOCK SD_SCK_MHZ(20)
// Example SDIO definition for RP2040/RP2350. See the Rp2040SdioSetup example.
#if defined(ARDUINO_ADAFRUIT_METRO_RP2040) && !defined(RP_CLK_GPIO)
#define RP_CLK_GPIO 18
#define RP_CMD_GPIO 19
#define RP_DAT0_GPIO 20 // DAT1: GPIO21, DAT2: GPIO22, DAT3: GPIO23.
#endif // defined(ARDUINO_ADAFRUIT_METRO_RP2040)
// Try to select the best SD card configuration.
#if defined(HAS_TEENSY_SDIO)
#define SD_CONFIG SdioConfig(FIFO_SDIO)
#elif defined(RP_CLK_GPIO) && defined(RP_CMD_GPIO) && defined(RP_DAT0_GPIO)
// See the Rp2040SdioSetup example for RP2040/RP2350 boards.
#define SD_CONFIG SdioConfig(RP_CLK_GPIO, RP_CMD_GPIO, 235)
#elif ENABLE_DEDICATED_SPI
#define SD_CONFIG SdSpiConfig(SD_CS_PIN, DEDICATED_SPI, SPI_CLOCK)
#else // HAS_TEENSY_SDIO
#define SD_CONFIG SdSpiConfig(SD_CS_PIN, SHARED_SPI, SPI_CLOCK)
#endif // HAS_TEENSY_SDIO
// Set PRE_ALLOCATE true to pre-allocate file clusters.
const bool PRE_ALLOCATE = true;
// Set SKIP_FIRST_LATENCY true if the first read/write to the SD can
// be avoid by writing a file header or reading the first record.
const bool SKIP_FIRST_LATENCY = true;
// Size of read/write.
const size_t BUF_SIZE = 512;
// File size in MB where MB = 1,000,000 bytes.
const uint32_t FILE_SIZE_MB = 5;
// Write pass count.
const uint8_t WRITE_COUNT = 2;
// Read pass count.
const uint8_t READ_COUNT = 2;
//==============================================================================
// End of configuration constants.
//------------------------------------------------------------------------------
// File size in bytes.
const uint32_t FILE_SIZE = 1000000UL * FILE_SIZE_MB;
// Insure 4-byte alignment.
uint32_t buf32[(BUF_SIZE + 3) / 4];
uint8_t* buf = (uint8_t*)buf32;
#if SD_FAT_TYPE == 0
SdFat sd;
File file;
#elif SD_FAT_TYPE == 1
SdFat32 sd;
File32 file;
#elif SD_FAT_TYPE == 2
SdExFat sd;
ExFile file;
#elif SD_FAT_TYPE == 3
SdFs sd;
FsFile file;
#else // SD_FAT_TYPE
#error Invalid SD_FAT_TYPE
#endif // SD_FAT_TYPE
// Serial output stream
ArduinoOutStream cout(Serial);
//------------------------------------------------------------------------------
// Store error strings in flash to save RAM.
#define error(s) sd.errorHalt(&Serial, F(s))
//------------------------------------------------------------------------------
void cidDmp() {
cid_t cid;
if (!sd.card()->readCID(&cid)) {
error("readCID failed");
}
cout << F("\nManufacturer ID: ");
cout << uppercase << showbase << hex << int(cid.mid) << dec << endl;
cout << F("OEM ID: ") << cid.oid[0] << cid.oid[1] << endl;
cout << F("Product: ");
for (uint8_t i = 0; i < 5; i++) {
cout << cid.pnm[i];
}
cout << F("\nRevision: ") << cid.prvN() << '.' << cid.prvM() << endl;
cout << F("Serial number: ") << hex << cid.psn() << dec << endl;
cout << F("Manufacturing date: ");
cout << cid.mdtMonth() << '/' << cid.mdtYear() << endl;
cout << endl;
}
//------------------------------------------------------------------------------
void clearSerialInput() {
uint32_t m = micros();
do {
if (Serial.read() >= 0) {
m = micros();
}
} while (micros() - m < 10000);
}
//------------------------------------------------------------------------------
void setup() {
Serial.begin(115200);
// Wait for USB Serial
while (!Serial) {
yield();
}
delay(1000);
cout << F("\nUse a freshly formatted SD for best performance.\n");
if (!ENABLE_DEDICATED_SPI) {
cout << F(
"\nSet ENABLE_DEDICATED_SPI nonzero in\n"
"SdFatConfig.h for best SPI performance.\n");
}
if (!SD_HAS_CUSTOM_SPI && !USE_SPI_ARRAY_TRANSFER && isSpi(SD_CONFIG)) {
cout << F(
"\nSetting USE_SPI_ARRAY_TRANSFER nonzero in\n"
"SdFatConfig.h may improve SPI performance.\n");
}
// use uppercase in hex and use 0X base prefix
cout << uppercase << showbase << endl;
}
//------------------------------------------------------------------------------
void loop() {
float s;
uint32_t t;
uint32_t maxLatency;
uint32_t minLatency;
uint32_t totalLatency;
bool skipLatency;
// Discard any input.
clearSerialInput();
// F() stores strings in flash to save RAM
cout << F("Type any character to start\n");
while (!Serial.available()) {
yield();
}
#if HAS_UNUSED_STACK
cout << F("FreeStack: ") << FreeStack() << endl;
#endif // HAS_UNUSED_STACK
if (!sd.begin(SD_CONFIG)) {
sd.initErrorHalt(&Serial);
}
if (sd.fatType() == FAT_TYPE_EXFAT) {
cout << F("Type is exFAT") << endl;
} else {
cout << F("Type is FAT") << int(sd.fatType()) << endl;
}
cout << F("Card size: ") << sd.card()->sectorCount() * 512E-9;
cout << F(" GB (GB = 1E9 bytes)") << endl;
cidDmp();
// open or create file - truncate existing file.
if (!file.open("bench.dat", O_RDWR | O_CREAT | O_TRUNC)) {
error("open failed");
}
// fill buf with known data
if (BUF_SIZE > 1) {
for (size_t i = 0; i < (BUF_SIZE - 2); i++) {
buf[i] = 'A' + (i % 26);
}
buf[BUF_SIZE - 2] = '\r';
}
buf[BUF_SIZE - 1] = '\n';
cout << F("FILE_SIZE_MB = ") << FILE_SIZE_MB << endl;
cout << F("BUF_SIZE = ") << BUF_SIZE << F(" bytes\n");
cout << F("Starting write test, please wait.") << endl << endl;
// do write test
uint32_t n = FILE_SIZE / BUF_SIZE;
cout << F("write speed and latency") << endl;
cout << F("speed,max,min,avg") << endl;
cout << F("KB/Sec,usec,usec,usec") << endl;
for (uint8_t nTest = 0; nTest < WRITE_COUNT; nTest++) {
file.truncate(0);
if (PRE_ALLOCATE) {
if (!file.preAllocate(FILE_SIZE)) {
error("preAllocate failed");
}
}
maxLatency = 0;
minLatency = 9999999;
totalLatency = 0;
skipLatency = SKIP_FIRST_LATENCY;
t = millis();
for (uint32_t i = 0; i < n; i++) {
uint32_t m = micros();
if (file.write(buf, BUF_SIZE) != BUF_SIZE) {
error("write failed");
}
m = micros() - m;
totalLatency += m;
if (skipLatency) {
// Wait until first write to SD, not just a copy to the cache.
skipLatency = file.curPosition() < 512;
} else {
if (maxLatency < m) {
maxLatency = m;
}
if (minLatency > m) {
minLatency = m;
}
}
}
file.sync();
t = millis() - t;
s = file.fileSize();
cout << s / t << ',' << maxLatency << ',' << minLatency;
cout << ',' << totalLatency / n << endl;
}
cout << endl << F("Starting read test, please wait.") << endl;
cout << endl << F("read speed and latency") << endl;
cout << F("speed,max,min,avg") << endl;
cout << F("KB/Sec,usec,usec,usec") << endl;
// do read test
for (uint8_t nTest = 0; nTest < READ_COUNT; nTest++) {
file.rewind();
maxLatency = 0;
minLatency = 9999999;
totalLatency = 0;
skipLatency = SKIP_FIRST_LATENCY;
t = millis();
for (uint32_t i = 0; i < n; i++) {
buf[BUF_SIZE - 1] = 0;
uint32_t m = micros();
int32_t nr = file.read(buf, BUF_SIZE);
if (nr != BUF_SIZE) {
error("read failed");
}
m = micros() - m;
totalLatency += m;
if (buf[BUF_SIZE - 1] != '\n') {
error("data check error");
}
if (skipLatency) {
skipLatency = false;
} else {
if (maxLatency < m) {
maxLatency = m;
}
if (minLatency > m) {
minLatency = m;
}
}
}
s = file.fileSize();
t = millis() - t;
cout << s / t << ',' << maxLatency << ',' << minLatency;
cout << ',' << totalLatency / n << endl;
}
cout << endl << F("Done") << endl;
file.close();
sd.end();
}
Additional context
I truncated the build messages as to not exceed max message...
More details in the forum post:
https://forum.arduino.cc/t/sdfat-tests-on-arduino-q/1411833/2