From 2420eb783ced37259a1b92db34d644937236f2c6 Mon Sep 17 00:00:00 2001
From: Stefan Agner <stefan.agner@toradex.com>
Date: Thu, 30 Aug 2018 13:00:16 +0200
Subject: use -Og for debugging

Currently we use -O0 (no optimization) for debug builds. Unfortunately
this leads to large firmwares really quickly, and prevents debugging
in TCM/OCRAM. Use -Og which enables some optimization which do not
interfere with debugging. GCC manual says:
  Optimize debugging experience. -Og enables optimizations that do not
  interfere with debugging. It should be the optimization level of choice
  for the standard edit-compile-debug cycle, offering a reasonable level
  of optimization while maintaining fast compilation and a good debugging
  experience.

Signed-off-by: Stefan Agner <stefan.agner@toradex.com>
---
 .../imx7_colibri_m4/demo_apps/blinking_imx_demo/armgcc/CMakeLists.txt   | 2 +-
 examples/imx7_colibri_m4/demo_apps/hello_world/armgcc/CMakeLists.txt    | 2 +-
 .../imx7_colibri_m4/demo_apps/hello_world_ddr/armgcc/CMakeLists.txt     | 2 +-
 .../imx7_colibri_m4/demo_apps/hello_world_ocram/armgcc/CMakeLists.txt   | 2 +-
 .../demo_apps/low_power_imx7d/rand_wfi/armgcc/CMakeLists.txt            | 2 +-
 .../imx7_colibri_m4/demo_apps/rpmsg/gpio_freertos/armgcc/CMakeLists.txt | 2 +-
 .../imx7_colibri_m4/demo_apps/rpmsg/pingpong_bm/armgcc/CMakeLists.txt   | 2 +-
 .../demo_apps/rpmsg/pingpong_freertos/armgcc/CMakeLists.txt             | 2 +-
 .../imx7_colibri_m4/demo_apps/rpmsg/str_echo_bm/armgcc/CMakeLists.txt   | 2 +-
 .../demo_apps/rpmsg/str_echo_freertos/armgcc/CMakeLists.txt             | 2 +-
 examples/imx7_colibri_m4/demo_apps/sema4_demo/armgcc/CMakeLists.txt     | 2 +-
 .../imx7_colibri_m4/driver_examples/adc_imx7d/armgcc/CMakeLists.txt     | 2 +-
 .../driver_examples/ecspi/ecspi_interrupt/master/armgcc/CMakeLists.txt  | 2 +-
 .../driver_examples/ecspi/ecspi_polling/master/armgcc/CMakeLists.txt    | 2 +-
 .../driver_examples/flexcan/flexcan_loopback/armgcc/CMakeLists.txt      | 2 +-
 .../driver_examples/flexcan/flexcan_network/armgcc/CMakeLists.txt       | 2 +-
 .../driver_examples/gpio_bank2_imx/armgcc/CMakeLists.txt                | 2 +-
 examples/imx7_colibri_m4/driver_examples/gpio_imx/armgcc/CMakeLists.txt | 2 +-
 examples/imx7_colibri_m4/driver_examples/gpt/armgcc/CMakeLists.txt      | 2 +-
 .../i2c_imx/i2c_interrupt_sensor_imx7d/armgcc/CMakeLists.txt            | 2 +-
 .../i2c_imx/i2c_polling_sensor_imx7d/armgcc/CMakeLists.txt              | 2 +-
 .../driver_examples/uart_imx/uart_interrupt/armgcc/CMakeLists.txt       | 2 +-
 .../driver_examples/uart_imx/uart_polling/armgcc/CMakeLists.txt         | 2 +-
 examples/imx7_colibri_m4/driver_examples/wdog_imx/armgcc/CMakeLists.txt | 2 +-
 24 files changed, 24 insertions(+), 24 deletions(-)

diff --git a/examples/imx7_colibri_m4/demo_apps/blinking_imx_demo/armgcc/CMakeLists.txt b/examples/imx7_colibri_m4/demo_apps/blinking_imx_demo/armgcc/CMakeLists.txt
index 69da032..86b9388 100644
--- a/examples/imx7_colibri_m4/demo_apps/blinking_imx_demo/armgcc/CMakeLists.txt
+++ b/examples/imx7_colibri_m4/demo_apps/blinking_imx_demo/armgcc/CMakeLists.txt
@@ -42,7 +42,7 @@ SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -mcpu=cortex-m4 -mfloat-ab
 SET(CMAKE_ASM_FLAGS_DEBUG "${CMAKE_ASM_FLAGS_DEBUG} -g")
 
 # DEBUG C FLAGS
-SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -O0")
+SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -Og")
 
 # DEBUG LD FLAGS
 SET(CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} -g")
diff --git a/examples/imx7_colibri_m4/demo_apps/hello_world/armgcc/CMakeLists.txt b/examples/imx7_colibri_m4/demo_apps/hello_world/armgcc/CMakeLists.txt
index 9dc58b4..17e67fb 100644
--- a/examples/imx7_colibri_m4/demo_apps/hello_world/armgcc/CMakeLists.txt
+++ b/examples/imx7_colibri_m4/demo_apps/hello_world/armgcc/CMakeLists.txt
@@ -42,7 +42,7 @@ SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -mcpu=cortex-m4 -mfloat-ab
 SET(CMAKE_ASM_FLAGS_DEBUG "${CMAKE_ASM_FLAGS_DEBUG} -g")
 
 # DEBUG C FLAGS
-SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -O0")
+SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -Og")
 
 # DEBUG LD FLAGS
 SET(CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} -g")
diff --git a/examples/imx7_colibri_m4/demo_apps/hello_world_ddr/armgcc/CMakeLists.txt b/examples/imx7_colibri_m4/demo_apps/hello_world_ddr/armgcc/CMakeLists.txt
index 3c13935..dd9bf76 100644
--- a/examples/imx7_colibri_m4/demo_apps/hello_world_ddr/armgcc/CMakeLists.txt
+++ b/examples/imx7_colibri_m4/demo_apps/hello_world_ddr/armgcc/CMakeLists.txt
@@ -42,7 +42,7 @@ SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -mcpu=cortex-m4 -mfloat-ab
 SET(CMAKE_ASM_FLAGS_DEBUG "${CMAKE_ASM_FLAGS_DEBUG} -g")
 
 # DEBUG C FLAGS
-SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -O0")
+SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -Og")
 
 # DEBUG LD FLAGS
 SET(CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} -g")
diff --git a/examples/imx7_colibri_m4/demo_apps/hello_world_ocram/armgcc/CMakeLists.txt b/examples/imx7_colibri_m4/demo_apps/hello_world_ocram/armgcc/CMakeLists.txt
index acfd668..d0cd949 100644
--- a/examples/imx7_colibri_m4/demo_apps/hello_world_ocram/armgcc/CMakeLists.txt
+++ b/examples/imx7_colibri_m4/demo_apps/hello_world_ocram/armgcc/CMakeLists.txt
@@ -42,7 +42,7 @@ SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -mcpu=cortex-m4 -mfloat-ab
 SET(CMAKE_ASM_FLAGS_DEBUG "${CMAKE_ASM_FLAGS_DEBUG} -g")
 
 # DEBUG C FLAGS
-SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -O0")
+SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -Og")
 
 # DEBUG LD FLAGS
 SET(CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} -g")
diff --git a/examples/imx7_colibri_m4/demo_apps/low_power_imx7d/rand_wfi/armgcc/CMakeLists.txt b/examples/imx7_colibri_m4/demo_apps/low_power_imx7d/rand_wfi/armgcc/CMakeLists.txt
index becc3be..5e927ef 100644
--- a/examples/imx7_colibri_m4/demo_apps/low_power_imx7d/rand_wfi/armgcc/CMakeLists.txt
+++ b/examples/imx7_colibri_m4/demo_apps/low_power_imx7d/rand_wfi/armgcc/CMakeLists.txt
@@ -42,7 +42,7 @@ SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -mcpu=cortex-m4 -mfloat-ab
 SET(CMAKE_ASM_FLAGS_DEBUG "${CMAKE_ASM_FLAGS_DEBUG} -g")
 
 # DEBUG C FLAGS
-SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -O0")
+SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -Og")
 
 # DEBUG LD FLAGS
 SET(CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} -g")
diff --git a/examples/imx7_colibri_m4/demo_apps/rpmsg/gpio_freertos/armgcc/CMakeLists.txt b/examples/imx7_colibri_m4/demo_apps/rpmsg/gpio_freertos/armgcc/CMakeLists.txt
index fb0303b..e156756 100644
--- a/examples/imx7_colibri_m4/demo_apps/rpmsg/gpio_freertos/armgcc/CMakeLists.txt
+++ b/examples/imx7_colibri_m4/demo_apps/rpmsg/gpio_freertos/armgcc/CMakeLists.txt
@@ -42,7 +42,7 @@ SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -mcpu=cortex-m4 -mfloat-ab
 SET(CMAKE_ASM_FLAGS_DEBUG "${CMAKE_ASM_FLAGS_DEBUG} -g")
 
 # DEBUG C FLAGS
-SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -O0")
+SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -Og")
 
 # DEBUG LD FLAGS
 SET(CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} -g")
diff --git a/examples/imx7_colibri_m4/demo_apps/rpmsg/pingpong_bm/armgcc/CMakeLists.txt b/examples/imx7_colibri_m4/demo_apps/rpmsg/pingpong_bm/armgcc/CMakeLists.txt
index c25b5a4..199ddc8 100644
--- a/examples/imx7_colibri_m4/demo_apps/rpmsg/pingpong_bm/armgcc/CMakeLists.txt
+++ b/examples/imx7_colibri_m4/demo_apps/rpmsg/pingpong_bm/armgcc/CMakeLists.txt
@@ -42,7 +42,7 @@ SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -mcpu=cortex-m4 -mfloat-ab
 SET(CMAKE_ASM_FLAGS_DEBUG "${CMAKE_ASM_FLAGS_DEBUG} -g")
 
 # DEBUG C FLAGS
-SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -O0")
+SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -Og")
 
 # DEBUG LD FLAGS
 SET(CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} -g")
diff --git a/examples/imx7_colibri_m4/demo_apps/rpmsg/pingpong_freertos/armgcc/CMakeLists.txt b/examples/imx7_colibri_m4/demo_apps/rpmsg/pingpong_freertos/armgcc/CMakeLists.txt
index 5e816b5..237c40f 100644
--- a/examples/imx7_colibri_m4/demo_apps/rpmsg/pingpong_freertos/armgcc/CMakeLists.txt
+++ b/examples/imx7_colibri_m4/demo_apps/rpmsg/pingpong_freertos/armgcc/CMakeLists.txt
@@ -42,7 +42,7 @@ SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -mcpu=cortex-m4 -mfloat-ab
 SET(CMAKE_ASM_FLAGS_DEBUG "${CMAKE_ASM_FLAGS_DEBUG} -g")
 
 # DEBUG C FLAGS
-SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -O0")
+SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -Og")
 
 # DEBUG LD FLAGS
 SET(CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} -g")
diff --git a/examples/imx7_colibri_m4/demo_apps/rpmsg/str_echo_bm/armgcc/CMakeLists.txt b/examples/imx7_colibri_m4/demo_apps/rpmsg/str_echo_bm/armgcc/CMakeLists.txt
index 1368562..45fca08 100644
--- a/examples/imx7_colibri_m4/demo_apps/rpmsg/str_echo_bm/armgcc/CMakeLists.txt
+++ b/examples/imx7_colibri_m4/demo_apps/rpmsg/str_echo_bm/armgcc/CMakeLists.txt
@@ -42,7 +42,7 @@ SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -mcpu=cortex-m4 -mfloat-ab
 SET(CMAKE_ASM_FLAGS_DEBUG "${CMAKE_ASM_FLAGS_DEBUG} -g")
 
 # DEBUG C FLAGS
-SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -O0")
+SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -Og")
 
 # DEBUG LD FLAGS
 SET(CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} -g")
diff --git a/examples/imx7_colibri_m4/demo_apps/rpmsg/str_echo_freertos/armgcc/CMakeLists.txt b/examples/imx7_colibri_m4/demo_apps/rpmsg/str_echo_freertos/armgcc/CMakeLists.txt
index f9c1542..eeac94e 100644
--- a/examples/imx7_colibri_m4/demo_apps/rpmsg/str_echo_freertos/armgcc/CMakeLists.txt
+++ b/examples/imx7_colibri_m4/demo_apps/rpmsg/str_echo_freertos/armgcc/CMakeLists.txt
@@ -42,7 +42,7 @@ SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -mcpu=cortex-m4 -mfloat-ab
 SET(CMAKE_ASM_FLAGS_DEBUG "${CMAKE_ASM_FLAGS_DEBUG} -g")
 
 # DEBUG C FLAGS
-SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -O0")
+SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -Og")
 
 # DEBUG LD FLAGS
 SET(CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} -g")
diff --git a/examples/imx7_colibri_m4/demo_apps/sema4_demo/armgcc/CMakeLists.txt b/examples/imx7_colibri_m4/demo_apps/sema4_demo/armgcc/CMakeLists.txt
index 35f22e7..65cdad5 100644
--- a/examples/imx7_colibri_m4/demo_apps/sema4_demo/armgcc/CMakeLists.txt
+++ b/examples/imx7_colibri_m4/demo_apps/sema4_demo/armgcc/CMakeLists.txt
@@ -42,7 +42,7 @@ SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -mcpu=cortex-m4 -mfloat-ab
 SET(CMAKE_ASM_FLAGS_DEBUG "${CMAKE_ASM_FLAGS_DEBUG} -g")
 
 # DEBUG C FLAGS
-SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -O0")
+SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -Og")
 
 # DEBUG LD FLAGS
 SET(CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} -g")
diff --git a/examples/imx7_colibri_m4/driver_examples/adc_imx7d/armgcc/CMakeLists.txt b/examples/imx7_colibri_m4/driver_examples/adc_imx7d/armgcc/CMakeLists.txt
index f0cfb51..b478808 100644
--- a/examples/imx7_colibri_m4/driver_examples/adc_imx7d/armgcc/CMakeLists.txt
+++ b/examples/imx7_colibri_m4/driver_examples/adc_imx7d/armgcc/CMakeLists.txt
@@ -42,7 +42,7 @@ SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -mcpu=cortex-m4 -mfloat-ab
 SET(CMAKE_ASM_FLAGS_DEBUG "${CMAKE_ASM_FLAGS_DEBUG} -g")
 
 # DEBUG C FLAGS
-SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -O0")
+SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -Og")
 
 # DEBUG LD FLAGS
 SET(CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} -g")
diff --git a/examples/imx7_colibri_m4/driver_examples/ecspi/ecspi_interrupt/master/armgcc/CMakeLists.txt b/examples/imx7_colibri_m4/driver_examples/ecspi/ecspi_interrupt/master/armgcc/CMakeLists.txt
index 0f04d2e..b97c3ef 100644
--- a/examples/imx7_colibri_m4/driver_examples/ecspi/ecspi_interrupt/master/armgcc/CMakeLists.txt
+++ b/examples/imx7_colibri_m4/driver_examples/ecspi/ecspi_interrupt/master/armgcc/CMakeLists.txt
@@ -42,7 +42,7 @@ SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -mcpu=cortex-m4 -mfloat-ab
 SET(CMAKE_ASM_FLAGS_DEBUG "${CMAKE_ASM_FLAGS_DEBUG} -g")
 
 # DEBUG C FLAGS
-SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -O0")
+SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -Og")
 
 # DEBUG LD FLAGS
 SET(CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} -g")
diff --git a/examples/imx7_colibri_m4/driver_examples/ecspi/ecspi_polling/master/armgcc/CMakeLists.txt b/examples/imx7_colibri_m4/driver_examples/ecspi/ecspi_polling/master/armgcc/CMakeLists.txt
index 1612a16..c5608d5 100644
--- a/examples/imx7_colibri_m4/driver_examples/ecspi/ecspi_polling/master/armgcc/CMakeLists.txt
+++ b/examples/imx7_colibri_m4/driver_examples/ecspi/ecspi_polling/master/armgcc/CMakeLists.txt
@@ -42,7 +42,7 @@ SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -mcpu=cortex-m4 -mfloat-ab
 SET(CMAKE_ASM_FLAGS_DEBUG "${CMAKE_ASM_FLAGS_DEBUG} -g")
 
 # DEBUG C FLAGS
-SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -O0")
+SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -Og")
 
 # DEBUG LD FLAGS
 SET(CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} -g")
diff --git a/examples/imx7_colibri_m4/driver_examples/flexcan/flexcan_loopback/armgcc/CMakeLists.txt b/examples/imx7_colibri_m4/driver_examples/flexcan/flexcan_loopback/armgcc/CMakeLists.txt
index b66ade6..aec0f0b 100644
--- a/examples/imx7_colibri_m4/driver_examples/flexcan/flexcan_loopback/armgcc/CMakeLists.txt
+++ b/examples/imx7_colibri_m4/driver_examples/flexcan/flexcan_loopback/armgcc/CMakeLists.txt
@@ -42,7 +42,7 @@ SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -mcpu=cortex-m4 -mfloat-ab
 SET(CMAKE_ASM_FLAGS_DEBUG "${CMAKE_ASM_FLAGS_DEBUG} -g")
 
 # DEBUG C FLAGS
-SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -O0")
+SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -Og")
 
 # DEBUG LD FLAGS
 SET(CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} -g")
diff --git a/examples/imx7_colibri_m4/driver_examples/flexcan/flexcan_network/armgcc/CMakeLists.txt b/examples/imx7_colibri_m4/driver_examples/flexcan/flexcan_network/armgcc/CMakeLists.txt
index 484831c..8d0bb9d 100644
--- a/examples/imx7_colibri_m4/driver_examples/flexcan/flexcan_network/armgcc/CMakeLists.txt
+++ b/examples/imx7_colibri_m4/driver_examples/flexcan/flexcan_network/armgcc/CMakeLists.txt
@@ -42,7 +42,7 @@ SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -mcpu=cortex-m4 -mfloat-ab
 SET(CMAKE_ASM_FLAGS_DEBUG "${CMAKE_ASM_FLAGS_DEBUG} -g")
 
 # DEBUG C FLAGS
-SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -O0")
+SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -Og")
 
 # DEBUG LD FLAGS
 SET(CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} -g")
diff --git a/examples/imx7_colibri_m4/driver_examples/gpio_bank2_imx/armgcc/CMakeLists.txt b/examples/imx7_colibri_m4/driver_examples/gpio_bank2_imx/armgcc/CMakeLists.txt
index a308638..25289b6 100644
--- a/examples/imx7_colibri_m4/driver_examples/gpio_bank2_imx/armgcc/CMakeLists.txt
+++ b/examples/imx7_colibri_m4/driver_examples/gpio_bank2_imx/armgcc/CMakeLists.txt
@@ -42,7 +42,7 @@ SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -mcpu=cortex-m4 -mfloat-ab
 SET(CMAKE_ASM_FLAGS_DEBUG "${CMAKE_ASM_FLAGS_DEBUG} -g")
 
 # DEBUG C FLAGS
-SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -O0")
+SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -Og")
 
 # DEBUG LD FLAGS
 SET(CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} -g")
diff --git a/examples/imx7_colibri_m4/driver_examples/gpio_imx/armgcc/CMakeLists.txt b/examples/imx7_colibri_m4/driver_examples/gpio_imx/armgcc/CMakeLists.txt
index 5e27e30..eb5eea4 100644
--- a/examples/imx7_colibri_m4/driver_examples/gpio_imx/armgcc/CMakeLists.txt
+++ b/examples/imx7_colibri_m4/driver_examples/gpio_imx/armgcc/CMakeLists.txt
@@ -42,7 +42,7 @@ SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -mcpu=cortex-m4 -mfloat-ab
 SET(CMAKE_ASM_FLAGS_DEBUG "${CMAKE_ASM_FLAGS_DEBUG} -g")
 
 # DEBUG C FLAGS
-SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -O0")
+SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -Og")
 
 # DEBUG LD FLAGS
 SET(CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} -g")
diff --git a/examples/imx7_colibri_m4/driver_examples/gpt/armgcc/CMakeLists.txt b/examples/imx7_colibri_m4/driver_examples/gpt/armgcc/CMakeLists.txt
index 4d9c266..2801a6e 100644
--- a/examples/imx7_colibri_m4/driver_examples/gpt/armgcc/CMakeLists.txt
+++ b/examples/imx7_colibri_m4/driver_examples/gpt/armgcc/CMakeLists.txt
@@ -42,7 +42,7 @@ SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -mcpu=cortex-m4 -mfloat-ab
 SET(CMAKE_ASM_FLAGS_DEBUG "${CMAKE_ASM_FLAGS_DEBUG} -g")
 
 # DEBUG C FLAGS
-SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -O0")
+SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -Og")
 
 # DEBUG LD FLAGS
 SET(CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} -g")
diff --git a/examples/imx7_colibri_m4/driver_examples/i2c_imx/i2c_interrupt_sensor_imx7d/armgcc/CMakeLists.txt b/examples/imx7_colibri_m4/driver_examples/i2c_imx/i2c_interrupt_sensor_imx7d/armgcc/CMakeLists.txt
index 52743ed..b9ee94d 100644
--- a/examples/imx7_colibri_m4/driver_examples/i2c_imx/i2c_interrupt_sensor_imx7d/armgcc/CMakeLists.txt
+++ b/examples/imx7_colibri_m4/driver_examples/i2c_imx/i2c_interrupt_sensor_imx7d/armgcc/CMakeLists.txt
@@ -42,7 +42,7 @@ SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -mcpu=cortex-m4 -mfloat-ab
 SET(CMAKE_ASM_FLAGS_DEBUG "${CMAKE_ASM_FLAGS_DEBUG} -g")
 
 # DEBUG C FLAGS
-SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -O0")
+SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -Og")
 
 # DEBUG LD FLAGS
 SET(CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} -g")
diff --git a/examples/imx7_colibri_m4/driver_examples/i2c_imx/i2c_polling_sensor_imx7d/armgcc/CMakeLists.txt b/examples/imx7_colibri_m4/driver_examples/i2c_imx/i2c_polling_sensor_imx7d/armgcc/CMakeLists.txt
index 6bcfc0f..6d52fe2 100644
--- a/examples/imx7_colibri_m4/driver_examples/i2c_imx/i2c_polling_sensor_imx7d/armgcc/CMakeLists.txt
+++ b/examples/imx7_colibri_m4/driver_examples/i2c_imx/i2c_polling_sensor_imx7d/armgcc/CMakeLists.txt
@@ -42,7 +42,7 @@ SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -mcpu=cortex-m4 -mfloat-ab
 SET(CMAKE_ASM_FLAGS_DEBUG "${CMAKE_ASM_FLAGS_DEBUG} -g")
 
 # DEBUG C FLAGS
-SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -O0")
+SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -Og")
 
 # DEBUG LD FLAGS
 SET(CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} -g")
diff --git a/examples/imx7_colibri_m4/driver_examples/uart_imx/uart_interrupt/armgcc/CMakeLists.txt b/examples/imx7_colibri_m4/driver_examples/uart_imx/uart_interrupt/armgcc/CMakeLists.txt
index eaaaaa0..f138270 100644
--- a/examples/imx7_colibri_m4/driver_examples/uart_imx/uart_interrupt/armgcc/CMakeLists.txt
+++ b/examples/imx7_colibri_m4/driver_examples/uart_imx/uart_interrupt/armgcc/CMakeLists.txt
@@ -42,7 +42,7 @@ SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -mcpu=cortex-m4 -mfloat-ab
 SET(CMAKE_ASM_FLAGS_DEBUG "${CMAKE_ASM_FLAGS_DEBUG} -g")
 
 # DEBUG C FLAGS
-SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -O0")
+SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -Og")
 
 # DEBUG LD FLAGS
 SET(CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} -g")
diff --git a/examples/imx7_colibri_m4/driver_examples/uart_imx/uart_polling/armgcc/CMakeLists.txt b/examples/imx7_colibri_m4/driver_examples/uart_imx/uart_polling/armgcc/CMakeLists.txt
index c1009cc..306039f 100644
--- a/examples/imx7_colibri_m4/driver_examples/uart_imx/uart_polling/armgcc/CMakeLists.txt
+++ b/examples/imx7_colibri_m4/driver_examples/uart_imx/uart_polling/armgcc/CMakeLists.txt
@@ -42,7 +42,7 @@ SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -mcpu=cortex-m4 -mfloat-ab
 SET(CMAKE_ASM_FLAGS_DEBUG "${CMAKE_ASM_FLAGS_DEBUG} -g")
 
 # DEBUG C FLAGS
-SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -O0")
+SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -Og")
 
 # DEBUG LD FLAGS
 SET(CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} -g")
diff --git a/examples/imx7_colibri_m4/driver_examples/wdog_imx/armgcc/CMakeLists.txt b/examples/imx7_colibri_m4/driver_examples/wdog_imx/armgcc/CMakeLists.txt
index f7582fd..b9fc6c8 100644
--- a/examples/imx7_colibri_m4/driver_examples/wdog_imx/armgcc/CMakeLists.txt
+++ b/examples/imx7_colibri_m4/driver_examples/wdog_imx/armgcc/CMakeLists.txt
@@ -42,7 +42,7 @@ SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -mcpu=cortex-m4 -mfloat-ab
 SET(CMAKE_ASM_FLAGS_DEBUG "${CMAKE_ASM_FLAGS_DEBUG} -g")
 
 # DEBUG C FLAGS
-SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -O0")
+SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g -Og")
 
 # DEBUG LD FLAGS
 SET(CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} -g")
-- 
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