Memfault Firmware SDK 0.33.2 (Build 512901)

Author: Memfault Inc

.circleci/Dockerfile

@@ -1,3 +1,14 @@
+# This Docker image is used in CircleCI to build the SDK. It's published to
+# Docker Hub as "memfault/memfault-sdk-embedded-ci".
+#
+# It's built with the following command (assuming cwd is the directory
+# containing this Dockerfile):
+#
+# ❯ DOCKER_BUILDKIT=1 docker build -t memfault/memfault-firmware-sdk-ci:<tag> .
+#
+# And uploaded to Docker Hub:
+# ❯ docker push memfault/memfault-firmware-sdk-ci:<tag>
+
 FROM ubuntu:22.04
 
 # Some details based on this Dockerfile:

CHANGES.md

@@ -1,3 +1,15 @@
+### Changes between Memfault SDK 0.33.1 and SDK 0.33.2 - Sept 7, 2022
+
+#### :chart_with_upwards_trend: Improvements
+
+- Zephyr port updates:
+  - fix a few minor nuisance build warnings on niche Zephyr configurations
+  - enable `LOG_OUTPUT` when `MEMFAULT_LOGGING_ENABLE` is enabled- this fixes a
+    build error if all other log backends are disabled. thanks to @balaji-nordic
+    for this fix! closes #33
+- Add a debug cli test command to the nRF-Connect SDK port for printing the OTA
+  url
+
 ### Changes between Memfault SDK 0.33.0 and SDK 0.33.1 - Aug 26, 2022
 
 #### :chart_with_upwards_trend: Improvements
@@ -89,6 +101,9 @@
     "Breaking Changes" below for enabling logs in your project.
   - Added a new Kconfig option, `MEMFAULT_ZEPHYR_FATAL_HANDLER`, which can be
     used to disable the Zephyr fault handler print facilities.
+  - Streamline support for nRF-Connect SDK based applications that don't need
+    the Memfault root certificates (eg nRF53 or nRF52 devices), via a new
+    Kconfig option `MEMFAULT_ROOT_CERT_STORAGE`, to avoid a nuisance build error
 
 #### :boom: Breaking Changes
 

VERSION

@@ -1,2 +1,2 @@
-BUILD ID: 503780
-GIT COMMIT: ef36b85f7
+BUILD ID: 512901
+GIT COMMIT: a0c2c2f58

components/demo/src/memfault_demo_cli_log.c

@@ -16,6 +16,7 @@
 
 int memfault_demo_cli_cmd_test_log(MEMFAULT_UNUSED int argc,
                                    MEMFAULT_UNUSED char *argv[]) {
+  MEMFAULT_LOG_RAW("Raw log!");
   MEMFAULT_LOG_DEBUG("Debug log!");
   MEMFAULT_LOG_INFO("Info log!");
   MEMFAULT_LOG_WARN("Warning log!");

components/include/memfault/version.h

@@ -19,7 +19,7 @@ typedef struct {
   uint8_t patch;
 } sMfltSdkVersion;
 
-#define MEMFAULT_SDK_VERSION   { .major = 0, .minor = 33, .patch = 1 }
+#define MEMFAULT_SDK_VERSION   { .major = 0, .minor = 33, .patch = 2 }
 
 #ifdef __cplusplus
 }

examples/nrf-connect-sdk/nrf5/memfault_demo_app/src/main.c

@@ -13,6 +13,19 @@
 
 LOG_MODULE_REGISTER(main, LOG_LEVEL_INF);
 
+//! wrapper to enclose logic around log_strdup
+char *prv_conditional_log_strdup(char *str) {
+#if !MEMFAULT_ZEPHYR_VERSION_GT(3, 1)
+  #if defined(CONFIG_LOG) && !defined(CONFIG_LOG2)
+  // Before zephyr 3.1, LOG was a different option from LOG2 and required
+  // manually duplicating string argument values. Only required if CONFIG_LOG is
+  // in use.
+  return log_strdup(str);
+  #endif
+#endif
+
+  return str;
+}
 static void prv_set_device_id(void) {
   uint8_t dev_id[16] = {0};
   char dev_id_str[sizeof(dev_id) * 2 + 1];
@@ -33,12 +46,14 @@ static void prv_set_device_id(void) {
     dev_str = dev_id_str;
   }
 
-  LOG_INF("Device ID: %s", dev_str);
+  LOG_INF("Device ID: %s", prv_conditional_log_strdup(dev_str));
 
   memfault_ncs_device_id_set(dev_str, length * 2);
 }
 
 void main(void) {
+  LOG_INF("Booting Memfault sample app!");
+
   // Set the device id based on the hardware UID
   prv_set_device_id();
 

ports/zephyr/Kconfig

@@ -5,6 +5,7 @@ config MEMFAULT
         select RUNTIME_NMI
         select EXTRA_EXCEPTION_INFO
         select DEBUG_THREAD_INFO
+        select LEGACY_INCLUDE_PATH
         help
           Enable Zephyr Integration with the Memfault SDK
           At the moment a port is only provided for Cortex-M based targets
@@ -113,6 +114,7 @@ config MEMFAULT_LOGGING_ENABLE
         bool "MEMFAULT Zephyr backend logging Enable [EXPERIMENTAL]"
         default n
         select LOG
+        select LOG_OUTPUT
         help
           Adds support for routing Zephyr logging calls to the Memfault
           logging backend.

ports/zephyr/common/memfault_logging_legacy.c

@@ -109,7 +109,6 @@ static void prv_log_put(const struct log_backend *const backend, struct log_msg
 static void prv_log_put_sync_string(const struct log_backend *const backend,
                                     struct log_msg_ids src_level, uint32_t timestamp,
                                     const char *fmt, va_list ap) {
-  printk("HERE WE GOOO\n");
   if (memfault_arch_is_inside_isr()) {
     // In synchronous mode, logging can occur from ISRs. The zephyr fault handlers are chatty so
     // don't save info while in an ISR to avoid wrapping over the info we are collecting.

ports/zephyr/common/memfault_platform_debug_log.c

@@ -91,12 +91,12 @@ void memfault_platform_log_raw(const char *fmt, ...) {
   ((KERNEL_VERSION_MAJOR > (major)) ||   \
    ((KERNEL_VERSION_MAJOR == (major)) && (KERNEL_VERSION_MINOR >= (minor))))
 
-#if ZEPHYR_VERSION_GTE(3, 0)
   char log_buf[MEMFAULT_DEBUG_LOG_BUFFER_SIZE_BYTES];
   vsnprintf(log_buf, sizeof(log_buf), fmt, args);
-  LOG_PRINTK("%s", log_buf);
+#if ZEPHYR_VERSION_GTE(3, 0)
+  LOG_PRINTK("%s\n", log_buf);
 #else
-  log_printk("%s\n", args);
+  printk("%s\n", log_buf);
 #endif
 
   va_end(args);

ports/zephyr/ncs/src/memfault_nrf_cli.c

@@ -6,8 +6,8 @@
 #include <shell/shell.h>
 
 #include "memfault/core/debug_log.h"
-
 #include "memfault/nrfconnect_port/fota.h"
+#include "memfault/ports/zephyr/http.h"
 
 static int prv_mflt_fota(const struct shell *shell, size_t argc, char **argv) {
 #if CONFIG_MEMFAULT_FOTA_CLI_CMD
@@ -23,10 +23,33 @@ static int prv_mflt_fota(const struct shell *shell, size_t argc, char **argv) {
 #endif
 }
 
+#if CONFIG_MEMFAULT_HTTP_ENABLE
+static int prv_mflt_get_latest_url(const struct shell *shell, size_t argc, char **argv) {
+  char *url = NULL;
+  int rv = memfault_zephyr_port_get_download_url(&url);
+  if (rv <= 0) {
+    MEMFAULT_LOG_ERROR("Unable to fetch OTA url, rv=%d", rv);
+    return rv;
+  }
+
+  printk("Download URL: '%s'\n", url);
+
+  rv = memfault_zephyr_port_release_download_url(&url);
+
+  return rv;
+}
+#endif // CONFIG_MEMFAULT_HTTP_ENABLE
+
 SHELL_STATIC_SUBCMD_SET_CREATE(
     sub_memfault_nrf_cmds,
-    SHELL_CMD(fota, NULL, "Perform a FOTA using Memfault client", prv_mflt_fota),
+    SHELL_CMD(fota, NULL, "Perform a FOTA using Memfault client",
+              prv_mflt_fota),
+#if CONFIG_MEMFAULT_HTTP_ENABLE
+    SHELL_CMD(get_latest_url, NULL, "Get the latest URL for the latest FOTA",
+              prv_mflt_get_latest_url),
+#endif
     SHELL_SUBCMD_SET_END /* Array terminated. */
 );
 
-SHELL_CMD_REGISTER(mflt_nrf, &sub_memfault_nrf_cmds, "Memfault nRF Connect SDK Test Commands", NULL);
+SHELL_CMD_REGISTER(mflt_nrf, &sub_memfault_nrf_cmds,
+                   "Memfault nRF Connect SDK Test Commands", NULL);