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diff --git a/os/common/startup/ARMCMx/compilers/GCC/crt1.c b/os/common/startup/ARMCMx/compilers/GCC/crt1.c
new file mode 100644
index 000000000..c47214e39
--- /dev/null
+++ b/os/common/startup/ARMCMx/compilers/GCC/crt1.c
@@ -0,0 +1,221 @@
+/*
+ ChibiOS - Copyright (C) 2006..2015 Giovanni Di Sirio.
+
+ This file is part of ChibiOS.
+
+ ChibiOS is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ ChibiOS is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/**
+ * @file ARMCMx/compilers/GCC/crt1.c
+ * @brief Startup stub functions.
+ *
+ * @addtogroup ARMCMx_GCC_STARTUP
+ * @{
+ */
+
+#include <stdbool.h>
+
+#include "cmparams.h"
+
+/*===========================================================================*/
+/* Module local definitions. */
+/*===========================================================================*/
+
+#if !defined(CRT1_AREAS_NUMBER) || defined(__DOXYGEN__)
+#define CRT1_AREAS_NUMBER 8
+#endif
+
+#if (CRT1_AREAS_NUMBER < 0) || (CRT1_AREAS_NUMBER > 8)
+#error "CRT1_AREAS_NUMBER must be within 0 and 8"
+#endif
+
+/*===========================================================================*/
+/* Module exported variables. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Module local types. */
+/*===========================================================================*/
+
+/**
+ * @brief Type of an area to be initialized.
+ */
+typedef struct {
+ uint32_t *init_text_area;
+ uint32_t *init_area;
+ uint32_t *clear_area;
+ uint32_t *no_init_area;
+} ram_init_area_t;
+
+/*===========================================================================*/
+/* Module local variables. */
+/*===========================================================================*/
+
+#if (CRT1_AREAS_NUMBER > 0) || defined(__DOXYGEN__)
+extern uint32_t __ram0_init_text__, __ram0_init__, __ram0_clear__, __ram0_noinit__;
+#endif
+#if (CRT1_AREAS_NUMBER > 1) || defined(__DOXYGEN__)
+extern uint32_t __ram1_init_text__, __ram1_init__, __ram1_clear__, __ram1_noinit__;
+#endif
+#if (CRT1_AREAS_NUMBER > 2) || defined(__DOXYGEN__)
+extern uint32_t __ram2_init_text__, __ram2_init__, __ram2_clear__, __ram2_noinit__;
+#endif
+#if (CRT1_AREAS_NUMBER > 3) || defined(__DOXYGEN__)
+extern uint32_t __ram3_init_text__, __ram3_init__, __ram3_clear__, __ram3_noinit__;
+#endif
+#if (CRT1_AREAS_NUMBER > 4) || defined(__DOXYGEN__)
+extern uint32_t __ram4_init_text__, __ram4_init__, __ram4_clear__, __ram4_noinit__;
+#endif
+#if (CRT1_AREAS_NUMBER > 5) || defined(__DOXYGEN__)
+extern uint32_t __ram5_init_text__, __ram5_init__, __ram5_clear__, __ram5_noinit__;
+#endif
+#if (CRT1_AREAS_NUMBER > 6) || defined(__DOXYGEN__)
+extern uint32_t __ram6_init_text__, __ram6_init__, __ram6_clear__, __ram6_noinit__;
+#endif
+#if (CRT1_AREAS_NUMBER > 7) || defined(__DOXYGEN__)
+extern uint32_t __ram7_init_text__, __ram7_init__, __ram7_clear__, __ram7_noinit__;
+#endif
+
+/**
+ * @brief Static table of areas to be initialized.
+ */
+#if (CRT1_AREAS_NUMBER > 0) || defined(__DOXYGEN__)
+static const ram_init_area_t ram_areas[CRT1_AREAS_NUMBER] = {
+ {&__ram0_init_text__, &__ram0_init__, &__ram0_clear__, &__ram0_noinit__},
+#if (CRT1_AREAS_NUMBER > 1) || defined(__DOXYGEN__)
+ {&__ram1_init_text__, &__ram1_init__, &__ram1_clear__, &__ram1_noinit__},
+#endif
+#if (CRT1_AREAS_NUMBER > 2) || defined(__DOXYGEN__)
+ {&__ram2_init_text__, &__ram2_init__, &__ram2_clear__, &__ram2_noinit__},
+#endif
+#if (CRT1_AREAS_NUMBER > 3) || defined(__DOXYGEN__)
+ {&__ram3_init_text__, &__ram3_init__, &__ram3_clear__, &__ram3_noinit__},
+#endif
+#if (CRT1_AREAS_NUMBER > 4) || defined(__DOXYGEN__)
+ {&__ram4_init_text__, &__ram4_init__, &__ram4_clear__, &__ram4_noinit__},
+#endif
+#if (CRT1_AREAS_NUMBER > 5) || defined(__DOXYGEN__)
+ {&__ram5_init_text__, &__ram5_init__, &__ram5_clear__, &__ram5_noinit__},
+#endif
+#if (CRT1_AREAS_NUMBER > 6) || defined(__DOXYGEN__)
+ {&__ram6_init_text__, &__ram6_init__, &__ram6_clear__, &__ram6_noinit__},
+#endif
+#if (CRT1_AREAS_NUMBER > 7) || defined(__DOXYGEN__)
+ {&__ram7_init_text__, &__ram7_init__, &__ram7_clear__, &__ram7_noinit__},
+#endif
+};
+#endif
+
+/*===========================================================================*/
+/* Module local functions. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Module exported functions. */
+/*===========================================================================*/
+
+/**
+ * @brief Architecture-dependent core initialization.
+ * @details This hook is invoked immediately after the stack initialization
+ * and before the DATA and BSS segments initialization.
+ * @note This function is a weak symbol.
+ */
+#if !defined(__DOXYGEN__)
+__attribute__((weak))
+#endif
+/*lint -save -e9075 [8.4] All symbols are invoked from asm context.*/
+void __core_init(void) {
+
+#if __CORTEX_M == 7
+ SCB_EnableICache();
+ SCB_EnableDCache();
+#endif
+}
+
+/**
+ * @brief Early initialization.
+ * @details This hook is invoked immediately after the stack and core
+ * initialization and before the DATA and BSS segments
+ * initialization.
+ * @note This function is a weak symbol.
+ */
+#if !defined(__DOXYGEN__)
+__attribute__((weak))
+#endif
+/*lint -save -e9075 [8.4] All symbols are invoked from asm context.*/
+void __early_init(void) {}
+/*lint -restore*/
+
+/**
+ * @brief Late initialization.
+ * @details This hook is invoked after the DATA and BSS segments
+ * initialization and before any static constructor. The
+ * default behavior is to do nothing.
+ * @note This function is a weak symbol.
+ */
+#if !defined(__DOXYGEN__)
+__attribute__((weak))
+#endif
+/*lint -save -e9075 [8.4] All symbols are invoked from asm context.*/
+void __late_init(void) {}
+/*lint -restore*/
+
+/**
+ * @brief Default @p main() function exit handler.
+ * @details This handler is invoked or the @p main() function exit. The
+ * default behavior is to enter an infinite loop.
+ * @note This function is a weak symbol.
+ */
+#if !defined(__DOXYGEN__)
+__attribute__((noreturn, weak))
+#endif
+/*lint -save -e9075 [8.4] All symbols are invoked from asm context.*/
+void __default_exit(void) {
+/*lint -restore*/
+
+ while (true) {
+ }
+}
+
+/**
+ * @brief Performs the initialization of the various RAM areas.
+ */
+void __init_ram_areas(void) {
+ const ram_init_area_t *rap = ram_areas;
+
+#if CRT1_AREAS_NUMBER > 0
+ do {
+ uint32_t *tp = rap->init_text_area;
+ uint32_t *p = rap->init_area;
+
+ /* Copying initialization data.*/
+ while (p < rap->clear_area) {
+ *p = *tp;
+ p++;
+ tp++;
+ }
+
+ /* Zeroing clear area.*/
+ while (p < rap->no_init_area) {
+ *p = 0;
+ p++;
+ }
+ rap++;
+ }
+ while (rap < &ram_areas[CRT1_AREAS_NUMBER]);
+#endif
+}
+
+/** @} */
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