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POEclipse CDT error: "Symbol 'XXX' could not be resolved"
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  1. POEclipse CDT error: "Symbol 'XXX' could not be resolved"
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    copied!<p>I have an embedded C project that builds and runs just fine using make on the console, but Eclipse CDT is giving me errors.</p> <p>In main.c, this function uses a macro, APP_BUTTON_INIT:</p> <pre><code>static void buttons_init(void) { static app_button_cfg_t buttons[] = { {SIGNAL_ALERT_BUTTON, false, NRF_GPIO_PIN_NOPULL, button_event_handler}, {BONDMNGR_DELETE_BUTTON_PIN_NO, false, NRF_GPIO_PIN_NOPULL, NULL} }; APP_BUTTON_INIT(buttons, sizeof(buttons) / sizeof(buttons[0]), BUTTON_DETECTION_DELAY, false); } </code></pre> <p>The APP_BUTTON_INIT macro is defined in app_button.h like this:</p> <pre><code>#define APP_BUTTON_INIT(BUTTONS, BUTTON_COUNT, DETECTION_DELAY, USE_SCHEDULER) \ do \ { \ uint32_t ERR_CODE = app_button_init((BUTTONS), \ (BUTTON_COUNT), \ (DETECTION_DELAY), \ (USE_SCHEDULER) ? app_button_evt_schedule : NULL); \ APP_ERROR_CHECK(ERR_CODE); \ } while (0) </code></pre> <p>The error is</p> <pre><code>Symbol 'app_button_evt_schedule' could not be resolved </code></pre> <p>But that function is defined further down in the very same header file, app_button.h:</p> <pre><code>static __INLINE uint32_t app_button_evt_schedule(app_button_handler_t button_handler, uint8_t pin_no) { app_button_event_t buttons_event; buttons_event.button_handler = button_handler; buttons_event.pin_no = pin_no; return app_sched_event_put(&amp;buttons_event, sizeof(buttons_event), app_button_evt_get); } </code></pre> <p>I've tried Project right click -> Index -> Rebuild and Freshen all files, no joy. I'm using Eclipse Kepler SR1 with CDT 8.2.1. Why can't Eclipse see this function?</p> <p>The first operation of the makefile is this (this works):</p> <pre><code>mkdir _build "/Users/Eliot/dev/gcc-arm/bin/arm-none-eabi-gcc" -DNRF51822_QFAA_CA -mcpu=cortex-m0 -mthumb -mabi=aapcs -DNRF51 -DBOARD_NRF6310 -DNRF51822_QFAA_CA --std=gnu99 -Wall -Werror -mfloat-abi=soft -DDEBUG -g3 -O0 -I"/Users/Eliot/dev/nrf51822/Include/ble" -I"/Users/Eliot/dev/nrf51822/Include/ble/softdevice" -I"/Users/Eliot/dev/nrf51822/Include/app_common" -I"/Users/Eliot/dev/nrf51822/Include/ble/ble_services" -I"../" -I"/Users/Eliot/dev/nrf51822/Include" -I"/Users/Eliot/dev/nrf51822/Include/gcc" -I"/Users/Eliot/dev/nrf51822/Include/ext_sensors" -M ../main.c -MF "_build/main.d" -MT _build/main.o </code></pre> <p>Screenshots for my CDT project config for includes, symbols and the tool chain are here:</p> <p><a href="https://dl.dropboxusercontent.com/u/12173473/screenshot_cdt_includes.png" rel="nofollow">https://dl.dropboxusercontent.com/u/12173473/screenshot_cdt_includes.png</a> <a href="https://dl.dropboxusercontent.com/u/12173473/screenshot_cdt_symbols.png" rel="nofollow">https://dl.dropboxusercontent.com/u/12173473/screenshot_cdt_symbols.png</a> <a href="https://dl.dropboxusercontent.com/u/12173473/screenshot_cdt_toolchain.png" rel="nofollow">https://dl.dropboxusercontent.com/u/12173473/screenshot_cdt_toolchain.png</a></p> <p>I'm not using a toolchain because my project started out as the sample CDT project from the hardware manufacturer (Nordic Semiconductor) and that project also had no toolchain configured. To be honest, I doubt CDT is finding the right gcc executable.</p>
 

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