construction of static objects fails with large/lower/upper

Eugene Hutorny

Other Parts Discussed in Thread: MSP430FR6989

The following example

//test.hpp
class test {
public:
	static constexpr unsigned max_count = 16;
	inline test() noexcept {
		add(this);
	}
	static inline unsigned get_count() noexcept {
		return count;
	}
protected:
	static void add(test*) noexcept;
	static test* tests[max_count];
	static unsigned count;
};
//test.cpp
#include "test.hpp"

test t1, t2, t3, t4, t5;

//main.cpp (fragment)
test* test::tests[test::max_count];
unsigned test::count = 0;

void test::add(test* t) {
	if( count >= max_count ) return;
	tests[count++] = t;
}

works as expected when build with msp430-elf-gcc 4.9.1 using options

-mlarge
-mcode-region=none
-mdata-region=none

however, when options are set to

-mlarge
-mcode-region=lower
-mdata-region=upper

test.count contains FF instead of expected 05.

Verbose build log is attached

Fullscreen 6840.build.log Download

/opt/ti/ccsv6/utils/bin/gmake -k all 
Building file: ../main.cpp
Invoking: GNU Compiler
"/opt/ti/gcc/bin/msp430-elf-gcc" -c -std=c++1y -mmcu=msp430fr6989 -fno-exceptions -I"/opt/ti/gcc/msp430-elf/include" -I"/opt/ti/ccsv6/ccs_base/msp430/include_gcc" -O3 -Os -Wall -v -mlarge -mcode-region=none -mdata-region=none -MMD -MP -MF"main.d" -MT"main.d" -fno-rtti -o"main.o"  "../main.cpp"
Using built-in specs.
COLLECT_GCC=/opt/ti/gcc/bin/msp430-elf-gcc
Target: msp430-elf
Configured with: /opt/redhat/msp430-14r1-364/sources/tools/configure --host=i686-redhat-linux --build=i686-redhat-linux --target=msp430-elf --prefix=/opt/redhat/msp430-14r1-364/i686-redhat-linux --enable-languages=c,c++
Thread model: single
gcc version 4.9.1 20140707 (prerelease (msp430-14r1-364)) (GNUPro 14r1) (Based on: GCC 4.8 GDB 7.7 Binutils 2.24 Newlib 2.1) (GCC) 
COLLECT_GCC_OPTIONS='-c' '-std=c++1y' '-mmcu=msp430fr6989' '-fno-exceptions' '-I' '/opt/ti/gcc/msp430-elf/include' '-I' '/opt/ti/ccsv6/ccs_base/msp430/include_gcc' '-O3' '-Os' '-Wall' '-v' '-mlarge' '-mcode-region=none' '-mdata-region=none' '-MMD' '-MP' '-MF' 'main.d' '-MT' 'main.d' '-fno-rtti' '-o' 'main.o'
 /opt/ti/gcc/bin/../libexec/gcc/msp430-elf/4.9.1/cc1plus -quiet -v -I /opt/ti/gcc/msp430-elf/include -I /opt/ti/ccsv6/ccs_base/msp430/include_gcc -imultilib large -iprefix /opt/ti/gcc/bin/../lib/gcc/msp430-elf/4.9.1/ -MMD main.d -MF main.d -MP -MT main.d ../main.cpp -quiet -dumpbase main.cpp -mmcu=msp430fr6989 -mlarge -mcode-region=none -mdata-region=none -auxbase-strip main.o -O3 -Os -Wall -std=c++1y -version -fno-exceptions -fno-rtti -o /tmp/ccAmTYji.s
GNU C++ (GCC) version 4.9.1 20140707 (prerelease (msp430-14r1-364)) (GNUPro 14r1) (Based on: GCC 4.8 GDB 7.7 Binutils 2.24 Newlib 2.1) (msp430-elf)
	compiled by GNU C version 4.1.2 20080704 (Red Hat 4.1.2-55), GMP version 5.0.1, MPFR version 3.1.0, MPC version 0.9
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
ignoring nonexistent directory "/opt/ti/gcc/bin/../lib/gcc/msp430-elf/4.9.1/../../../../msp430-elf/sys-include"
ignoring duplicate directory "/opt/ti/gcc/bin/../lib/gcc/../../lib/gcc/msp430-elf/4.9.1/../../../../msp430-elf/include/c++/4.9.1"
ignoring duplicate directory "/opt/ti/gcc/bin/../lib/gcc/../../lib/gcc/msp430-elf/4.9.1/../../../../msp430-elf/include/c++/4.9.1/msp430-elf/large"
ignoring duplicate directory "/opt/ti/gcc/bin/../lib/gcc/../../lib/gcc/msp430-elf/4.9.1/../../../../msp430-elf/include/c++/4.9.1/backward"
ignoring duplicate directory "/opt/ti/gcc/bin/../lib/gcc/../../lib/gcc/msp430-elf/4.9.1/include"
ignoring duplicate directory "/opt/ti/gcc/bin/../lib/gcc/../../lib/gcc/msp430-elf/4.9.1/include-fixed"
ignoring nonexistent directory "/opt/ti/gcc/bin/../lib/gcc/../../lib/gcc/msp430-elf/4.9.1/../../../../msp430-elf/sys-include"
ignoring duplicate directory "/opt/ti/gcc/bin/../lib/gcc/../../lib/gcc/msp430-elf/4.9.1/../../../../msp430-elf/include"
ignoring duplicate directory "/opt/ti/gcc/msp430-elf/include"
  as it is a non-system directory that duplicates a system directory
#include "..." search starts here:
#include <...> search starts here:
 /opt/ti/ccsv6/ccs_base/msp430/include_gcc
 /opt/ti/gcc/bin/../lib/gcc/msp430-elf/4.9.1/../../../../msp430-elf/include/c++/4.9.1
 /opt/ti/gcc/bin/../lib/gcc/msp430-elf/4.9.1/../../../../msp430-elf/include/c++/4.9.1/msp430-elf/large
 /opt/ti/gcc/bin/../lib/gcc/msp430-elf/4.9.1/../../../../msp430-elf/include/c++/4.9.1/backward
 /opt/ti/gcc/bin/../lib/gcc/msp430-elf/4.9.1/include
 /opt/ti/gcc/bin/../lib/gcc/msp430-elf/4.9.1/include-fixed
 /opt/ti/gcc/bin/../lib/gcc/msp430-elf/4.9.1/../../../../msp430-elf/include
End of search list.
GNU C++ (GCC) version 4.9.1 20140707 (prerelease (msp430-14r1-364)) (GNUPro 14r1) (Based on: GCC 4.8 GDB 7.7 Binutils 2.24 Newlib 2.1) (msp430-elf)
	compiled by GNU C version 4.1.2 20080704 (Red Hat 4.1.2-55), GMP version 5.0.1, MPFR version 3.1.0, MPC version 0.9
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Compiler executable checksum: 1a1fed4172c6cd7daa4ff072f27c6f2a
COLLECT_GCC_OPTIONS='-c' '-std=c++1y' '-mmcu=msp430fr6989' '-fno-exceptions' '-I' '/opt/ti/gcc/msp430-elf/include' '-I' '/opt/ti/ccsv6/ccs_base/msp430/include_gcc' '-O3' '-Os' '-Wall' '-v' '-mlarge' '-mcode-region=none' '-mdata-region=none' '-MMD' '-MP' '-MF' 'main.d' '-MT' 'main.d' '-fno-rtti' '-o' 'main.o'
 /opt/ti/gcc/bin/../lib/gcc/msp430-elf/4.9.1/../../../../msp430-elf/bin/as -v -I /opt/ti/gcc/msp430-elf/include -I /opt/ti/ccsv6/ccs_base/msp430/include_gcc -mP -mmcu=msp430fr6989 -ml -md -o main.o /tmp/ccAmTYji.s
GNU assembler version 2.24.51 (msp430-elf) using BFD version (GNU Binutils) 2.24.51.20140505
COMPILER_PATH=/opt/ti/gcc/bin/../libexec/gcc/msp430-elf/4.9.1/:/opt/ti/gcc/bin/../libexec/gcc/:/opt/ti/gcc/bin/../lib/gcc/msp430-elf/4.9.1/../../../../msp430-elf/bin/
LIBRARY_PATH=/opt/ti/gcc/bin/../lib/gcc/msp430-elf/4.9.1/large/:/opt/ti/gcc/bin/../lib/gcc/msp430-elf/4.9.1/../../../../msp430-elf/lib/large/:/opt/ti/gcc/bin/../lib/gcc/msp430-elf/4.9.1/:/opt/ti/gcc/bin/../lib/gcc/:/opt/ti/gcc/bin/../lib/gcc/msp430-elf/4.9.1/../../../../msp430-elf/lib/
COLLECT_GCC_OPTIONS='-c' '-std=c++1y' '-mmcu=msp430fr6989' '-fno-exceptions' '-I' '/opt/ti/gcc/msp430-elf/include' '-I' '/opt/ti/ccsv6/ccs_base/msp430/include_gcc' '-O3' '-Os' '-Wall' '-v' '-mlarge' '-mcode-region=none' '-mdata-region=none' '-MMD' '-MP' '-MF' 'main.d' '-MT' 'main.d' '-fno-rtti' '-o' 'main.o'
Finished building: ../main.cpp
 
Building file: ../test.cpp
Invoking: GNU Compiler
"/opt/ti/gcc/bin/msp430-elf-gcc" -c -std=c++1y -mmcu=msp430fr6989 -fno-exceptions -I"/opt/ti/gcc/msp430-elf/include" -I"/opt/ti/ccsv6/ccs_base/msp430/include_gcc" -O3 -Os -Wall -v -mlarge -mcode-region=none -mdata-region=none -MMD -MP -MF"test.d" -MT"test.d" -fno-rtti -o"test.o"  "../test.cpp"
Using built-in specs.
COLLECT_GCC=/opt/ti/gcc/bin/msp430-elf-gcc
Target: msp430-elf
Configured with: /opt/redhat/msp430-14r1-364/sources/tools/configure --host=i686-redhat-linux --build=i686-redhat-linux --target=msp430-elf --prefix=/opt/redhat/msp430-14r1-364/i686-redhat-linux --enable-languages=c,c++
Thread model: single
gcc version 4.9.1 20140707 (prerelease (msp430-14r1-364)) (GNUPro 14r1) (Based on: GCC 4.8 GDB 7.7 Binutils 2.24 Newlib 2.1) (GCC) 
COLLECT_GCC_OPTIONS='-c' '-std=c++1y' '-mmcu=msp430fr6989' '-fno-exceptions' '-I' '/opt/ti/gcc/msp430-elf/include' '-I' '/opt/ti/ccsv6/ccs_base/msp430/include_gcc' '-O3' '-Os' '-Wall' '-v' '-mlarge' '-mcode-region=none' '-mdata-region=none' '-MMD' '-MP' '-MF' 'test.d' '-MT' 'test.d' '-fno-rtti' '-o' 'test.o'
 /opt/ti/gcc/bin/../libexec/gcc/msp430-elf/4.9.1/cc1plus -quiet -v -I /opt/ti/gcc/msp430-elf/include -I /opt/ti/ccsv6/ccs_base/msp430/include_gcc -imultilib large -iprefix /opt/ti/gcc/bin/../lib/gcc/msp430-elf/4.9.1/ -MMD test.d -MF test.d -MP -MT test.d ../test.cpp -quiet -dumpbase test.cpp -mmcu=msp430fr6989 -mlarge -mcode-region=none -mdata-region=none -auxbase-strip test.o -O3 -Os -Wall -std=c++1y -version -fno-exceptions -fno-rtti -o /tmp/cc08nMEq.s
GNU C++ (GCC) version 4.9.1 20140707 (prerelease (msp430-14r1-364)) (GNUPro 14r1) (Based on: GCC 4.8 GDB 7.7 Binutils 2.24 Newlib 2.1) (msp430-elf)
	compiled by GNU C version 4.1.2 20080704 (Red Hat 4.1.2-55), GMP version 5.0.1, MPFR version 3.1.0, MPC version 0.9
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
ignoring nonexistent directory "/opt/ti/gcc/bin/../lib/gcc/msp430-elf/4.9.1/../../../../msp430-elf/sys-include"
ignoring duplicate directory "/opt/ti/gcc/bin/../lib/gcc/../../lib/gcc/msp430-elf/4.9.1/../../../../msp430-elf/include/c++/4.9.1"
ignoring duplicate directory "/opt/ti/gcc/bin/../lib/gcc/../../lib/gcc/msp430-elf/4.9.1/../../../../msp430-elf/include/c++/4.9.1/msp430-elf/large"
ignoring duplicate directory "/opt/ti/gcc/bin/../lib/gcc/../../lib/gcc/msp430-elf/4.9.1/../../../../msp430-elf/include/c++/4.9.1/backward"
ignoring duplicate directory "/opt/ti/gcc/bin/../lib/gcc/../../lib/gcc/msp430-elf/4.9.1/include"
ignoring duplicate directory "/opt/ti/gcc/bin/../lib/gcc/../../lib/gcc/msp430-elf/4.9.1/include-fixed"
ignoring nonexistent directory "/opt/ti/gcc/bin/../lib/gcc/../../lib/gcc/msp430-elf/4.9.1/../../../../msp430-elf/sys-include"
ignoring duplicate directory "/opt/ti/gcc/bin/../lib/gcc/../../lib/gcc/msp430-elf/4.9.1/../../../../msp430-elf/include"
ignoring duplicate directory "/opt/ti/gcc/msp430-elf/include"
  as it is a non-system directory that duplicates a system directory
#include "..." search starts here:
#include <...> search starts here:
 /opt/ti/ccsv6/ccs_base/msp430/include_gcc
 /opt/ti/gcc/bin/../lib/gcc/msp430-elf/4.9.1/../../../../msp430-elf/include/c++/4.9.1
 /opt/ti/gcc/bin/../lib/gcc/msp430-elf/4.9.1/../../../../msp430-elf/include/c++/4.9.1/msp430-elf/large
 /opt/ti/gcc/bin/../lib/gcc/msp430-elf/4.9.1/../../../../msp430-elf/include/c++/4.9.1/backward
 /opt/ti/gcc/bin/../lib/gcc/msp430-elf/4.9.1/include
 /opt/ti/gcc/bin/../lib/gcc/msp430-elf/4.9.1/include-fixed
 /opt/ti/gcc/bin/../lib/gcc/msp430-elf/4.9.1/../../../../msp430-elf/include
End of search list.
GNU C++ (GCC) version 4.9.1 20140707 (prerelease (msp430-14r1-364)) (GNUPro 14r1) (Based on: GCC 4.8 GDB 7.7 Binutils 2.24 Newlib 2.1) (msp430-elf)
	compiled by GNU C version 4.1.2 20080704 (Red Hat 4.1.2-55), GMP version 5.0.1, MPFR version 3.1.0, MPC version 0.9
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Compiler executable checksum: 1a1fed4172c6cd7daa4ff072f27c6f2a
COLLECT_GCC_OPTIONS='-c' '-std=c++1y' '-mmcu=msp430fr6989' '-fno-exceptions' '-I' '/opt/ti/gcc/msp430-elf/include' '-I' '/opt/ti/ccsv6/ccs_base/msp430/include_gcc' '-O3' '-Os' '-Wall' '-v' '-mlarge' '-mcode-region=none' '-mdata-region=none' '-MMD' '-MP' '-MF' 'test.d' '-MT' 'test.d' '-fno-rtti' '-o' 'test.o'
 /opt/ti/gcc/bin/../lib/gcc/msp430-elf/4.9.1/../../../../msp430-elf/bin/as -v -I /opt/ti/gcc/msp430-elf/include -I /opt/ti/ccsv6/ccs_base/msp430/include_gcc -mP -mmcu=msp430fr6989 -ml -md -o test.o /tmp/cc08nMEq.s
GNU assembler version 2.24.51 (msp430-elf) using BFD version (GNU Binutils) 2.24.51.20140505
COMPILER_PATH=/opt/ti/gcc/bin/../libexec/gcc/msp430-elf/4.9.1/:/opt/ti/gcc/bin/../libexec/gcc/:/opt/ti/gcc/bin/../lib/gcc/msp430-elf/4.9.1/../../../../msp430-elf/bin/
LIBRARY_PATH=/opt/ti/gcc/bin/../lib/gcc/msp430-elf/4.9.1/large/:/opt/ti/gcc/bin/../lib/gcc/msp430-elf/4.9.1/../../../../msp430-elf/lib/large/:/opt/ti/gcc/bin/../lib/gcc/msp430-elf/4.9.1/:/opt/ti/gcc/bin/../lib/gcc/:/opt/ti/gcc/bin/../lib/gcc/msp430-elf/4.9.1/../../../../msp430-elf/lib/
COLLECT_GCC_OPTIONS='-c' '-std=c++1y' '-mmcu=msp430fr6989' '-fno-exceptions' '-I' '/opt/ti/gcc/msp430-elf/include' '-I' '/opt/ti/ccsv6/ccs_base/msp430/include_gcc' '-O3' '-Os' '-Wall' '-v' '-mlarge' '-mcode-region=none' '-mdata-region=none' '-MMD' '-MP' '-MF' 'test.d' '-MT' 'test.d' '-fno-rtti' '-o' 'test.o'
Finished building: ../test.cpp
 
Building target: uart_echo.out
Invoking: GNU Linker
"/opt/ti/gcc/bin/msp430-elf-gcc" -mmcu=msp430fr6989 -fno-exceptions -O3 -Os -Wall -v -mlarge -Wl,-Map,"uart_echo.map" -mcode-region=none -mdata-region=none -o"uart_echo.out" "./main.o" "./msp430_serial.o" "./test.o" "./driverlib/MSP430FR5xx_6xx/adc12_b.o" "./driverlib/MSP430FR5xx_6xx/aes256.o" "./driverlib/MSP430FR5xx_6xx/comp_e.o" "./driverlib/MSP430FR5xx_6xx/crc.o" "./driverlib/MSP430FR5xx_6xx/crc32.o" "./driverlib/MSP430FR5xx_6xx/cs.o" "./driverlib/MSP430FR5xx_6xx/dma.o" "./driverlib/MSP430FR5xx_6xx/esi.o" "./driverlib/MSP430FR5xx_6xx/eusci_a_spi.o" "./driverlib/MSP430FR5xx_6xx/eusci_a_uart.o" "./driverlib/MSP430FR5xx_6xx/eusci_b_i2c.o" "./driverlib/MSP430FR5xx_6xx/eusci_b_spi.o" "./driverlib/MSP430FR5xx_6xx/framctl.o" "./driverlib/MSP430FR5xx_6xx/gpio.o" "./driverlib/MSP430FR5xx_6xx/lcd_c.o" "./driverlib/MSP430FR5xx_6xx/mpu.o" "./driverlib/MSP430FR5xx_6xx/mpy32.o" "./driverlib/MSP430FR5xx_6xx/pmm.o" "./driverlib/MSP430FR5xx_6xx/ram.o" "./driverlib/MSP430FR5xx_6xx/ref_a.o" "./driverlib/MSP430FR5xx_6xx/rtc_b.o" "./driverlib/MSP430FR5xx_6xx/rtc_c.o" "./driverlib/MSP430FR5xx_6xx/sfr.o" "./driverlib/MSP430FR5xx_6xx/sysctl.o" "./driverlib/MSP430FR5xx_6xx/timer_a.o" "./driverlib/MSP430FR5xx_6xx/timer_b.o" "./driverlib/MSP430FR5xx_6xx/tlv.o" "./driverlib/MSP430FR5xx_6xx/wdt_a.o" -T"../msp430fr6989.ld"  -Wl,--start-group -l"c" -l"gcc" -Wl,--end-group 
Using built-in specs.
COLLECT_GCC=/opt/ti/gcc/bin/msp430-elf-gcc
COLLECT_LTO_WRAPPER=/opt/ti/gcc/bin/../libexec/gcc/msp430-elf/4.9.1/lto-wrapper
Target: msp430-elf
Configured with: /opt/redhat/msp430-14r1-364/sources/tools/configure --host=i686-redhat-linux --build=i686-redhat-linux --target=msp430-elf --prefix=/opt/redhat/msp430-14r1-364/i686-redhat-linux --enable-languages=c,c++
Thread model: single
gcc version 4.9.1 20140707 (prerelease (msp430-14r1-364)) (GNUPro 14r1) (Based on: GCC 4.8 GDB 7.7 Binutils 2.24 Newlib 2.1) (GCC) 
COMPILER_PATH=/opt/ti/gcc/bin/../libexec/gcc/msp430-elf/4.9.1/:/opt/ti/gcc/bin/../libexec/gcc/:/opt/ti/gcc/bin/../lib/gcc/msp430-elf/4.9.1/../../../../msp430-elf/bin/
LIBRARY_PATH=/opt/ti/gcc/bin/../lib/gcc/msp430-elf/4.9.1/large/:/opt/ti/gcc/bin/../lib/gcc/msp430-elf/4.9.1/../../../../msp430-elf/lib/large/:/opt/ti/gcc/bin/../lib/gcc/msp430-elf/4.9.1/:/opt/ti/gcc/bin/../lib/gcc/:/opt/ti/gcc/bin/../lib/gcc/msp430-elf/4.9.1/../../../../msp430-elf/lib/
COLLECT_GCC_OPTIONS='-mmcu=msp430fr6989' '-fno-exceptions' '-O3' '-Os' '-Wall' '-v' '-mlarge' '-mcode-region=none' '-mdata-region=none' '-o' 'uart_echo.out' '-T' '../msp430fr6989.ld'
 /opt/ti/gcc/bin/../libexec/gcc/msp430-elf/4.9.1/collect2 -plugin /opt/ti/gcc/bin/../libexec/gcc/msp430-elf/4.9.1/liblto_plugin.so -plugin-opt=/opt/ti/gcc/bin/../libexec/gcc/msp430-elf/4.9.1/lto-wrapper -plugin-opt=-fresolution=/tmp/ccnfyLKt.res -plugin-opt=-pass-through=-lgcc -plugin-opt=-pass-through=-lc -plugin-opt=-pass-through=-lgcc -plugin-opt=-pass-through=-lcrt -plugin-opt=-pass-through=-lnosys -plugin-opt=-pass-through=-lgcc --gc-sections -o uart_echo.out /opt/ti/gcc/bin/../lib/gcc/msp430-elf/4.9.1/../../../../msp430-elf/lib/large/crt0.o /opt/ti/gcc/bin/../lib/gcc/msp430-elf/4.9.1/large/crtbegin.o -L/opt/ti/gcc/bin/../lib/gcc/msp430-elf/4.9.1/large -L/opt/ti/gcc/bin/../lib/gcc/msp430-elf/4.9.1/../../../../msp430-elf/lib/large -L/opt/ti/gcc/bin/../lib/gcc/msp430-elf/4.9.1 -L/opt/ti/gcc/bin/../lib/gcc -L/opt/ti/gcc/bin/../lib/gcc/msp430-elf/4.9.1/../../../../msp430-elf/lib -Map uart_echo.map ./main.o ./msp430_serial.o ./test.o ./driverlib/MSP430FR5xx_6xx/adc12_b.o ./driverlib/MSP430FR5xx_6xx/aes256.o ./driverlib/MSP430FR5xx_6xx/comp_e.o ./driverlib/MSP430FR5xx_6xx/crc.o ./driverlib/MSP430FR5xx_6xx/crc32.o ./driverlib/MSP430FR5xx_6xx/cs.o ./driverlib/MSP430FR5xx_6xx/dma.o ./driverlib/MSP430FR5xx_6xx/esi.o ./driverlib/MSP430FR5xx_6xx/eusci_a_spi.o ./driverlib/MSP430FR5xx_6xx/eusci_a_uart.o ./driverlib/MSP430FR5xx_6xx/eusci_b_i2c.o ./driverlib/MSP430FR5xx_6xx/eusci_b_spi.o ./driverlib/MSP430FR5xx_6xx/framctl.o ./driverlib/MSP430FR5xx_6xx/gpio.o ./driverlib/MSP430FR5xx_6xx/lcd_c.o ./driverlib/MSP430FR5xx_6xx/mpu.o ./driverlib/MSP430FR5xx_6xx/mpy32.o ./driverlib/MSP430FR5xx_6xx/pmm.o ./driverlib/MSP430FR5xx_6xx/ram.o ./driverlib/MSP430FR5xx_6xx/ref_a.o ./driverlib/MSP430FR5xx_6xx/rtc_b.o ./driverlib/MSP430FR5xx_6xx/rtc_c.o ./driverlib/MSP430FR5xx_6xx/sfr.o ./driverlib/MSP430FR5xx_6xx/sysctl.o ./driverlib/MSP430FR5xx_6xx/timer_a.o ./driverlib/MSP430FR5xx_6xx/timer_b.o ./driverlib/MSP430FR5xx_6xx/tlv.o ./driverlib/MSP430FR5xx_6xx/wdt_a.o --start-group -lc -lgcc --end-group -lgcc --start-group -lc -lgcc -lcrt -lnosys --end-group -lgcc /opt/ti/gcc/bin/../lib/gcc/msp430-elf/4.9.1/large/crtend.o /opt/ti/gcc/bin/../lib/gcc/msp430-elf/4.9.1/../../../../msp430-elf/lib/large/crtn.o -lgcc -T ../msp430fr6989.ld
Finished building target: uart_echo.out
 

**** Build Finished ****

over 10 years ago

0 Mike Pridgen over 10 years ago

TI__Mastermind 23015 points

Hi Eugene,
I moved your post to the compilers forum as I think you will have better luck getting a response here. We can move it back to 430s later if we determine it is actually an issue with the 430 and not the compiler.
Mike

0 George Mock over 10 years ago in reply to Mike Pridgen

TI__Guru**** 253380 points

I asked the MSP430 GCC compiler experts at Red Hat to take a look.

Thanks and regards,

-George

0 Nick Clifton over 10 years ago

Intellectual 390 points

Hi Eugene,

Please could you upload the msp430fr6989.ld linker script that you are using, as well as a copy of the broken executable binary ?

I tried to reproduce the problem locally, guessing at the rest of the contents of main.cpp, but unfortunately I could not make the error happen. Ie I saw a count of 5 every time, even when compiling with -mcode-region=lower and -mdata-region=upper.

Cheers
Nick

0 Eugene Hutorny over 10 years ago in reply to Nick Clifton

Intellectual 350 points

Hi Nick,

Please find the files attached

msp430fr6989.zip

0 Nick Clifton over 10 years ago in reply to Eugene Hutorny

Intellectual 390 points

Hi Eugene,

Ah - I think that I may have found the problem - the .upper.bss section is not being initialized with zeroes.

Please try out the revised version of the msp430fr6989.ld script uploaded and let me know if it works for you.

Cheers

Nick

revised_scrip.zip

0 Eugene Hutorny over 10 years ago in reply to Nick Clifton

Intellectual 350 points

Hi Nick,

Thanks for answering. Unfortunately the revised script has not remedy the malfunction.

Just to ensure we are on the same page - the revised script you send contains the following difference comparing to the original.

--- msp430fr6989.old    2015-11-13 17:32:00.167599104 +0200
+++ msp430fr6989.ld     2015-11-20 16:59:34.000000000 +0200
@@ -310,6 +310,7 @@
     . = ALIGN(2);
     __high_bssend = .;
   } > HIFRAM
+  PROVIDE (__high_bsssize = SIZEOF(.upper.bss));

   /* This section contains data that is not initialised during load
      or application reset.  */

0 Nick Clifton over 10 years ago in reply to Eugene Hutorny

Intellectual 390 points

Hi Eugene,

Darn - I was sure that that was the problem. The diff you posted is correct, that is the change that I made to the script. Just to be sure can you check the value of the __high_bsssize symbol in the executable you created ? (Using the patched linker script). It should be the same as the size of the .upper.bss section in the executable.

Cheers

Nick

0 Eugene Hutorny over 10 years ago in reply to Nick Clifton

Intellectual 350 points

Hi Nick, Please find excerpt from the map file below

                0x0001004c                __high_bssstart = .
 *(.upper.bss.* .upper.bss)
 .upper.bss     0x0001004c       0x42 ./main.o
                0x0001004c                test::count
                0x0001004e                test::tests
 .upper.bss     0x0001008e        0x5 ./test.o
                0x0001008e                t5
                0x0001008f                t4
                0x00010090                t3
                0x00010091                t2
                0x00010092                t1
                0x00010094                . = ALIGN (0x2)
 *fill*         0x00010093        0x1 
                0x00010094                __high_bssend = .
                0x00000048                PROVIDE (__high_bsssize, SIZEOF (.upper.bss))

0 Nick Clifton over 10 years ago in reply to Eugene Hutorny

Intellectual 390 points

Hi Eugene,

OK - well it seems that the patched linker script was doing what I had hoped, so I am back to square one. :-( Would you mind uploading a new copy of the executable, built with the patched linker script please ? Also, it would really help if you could let me have a copy of the full source code for your test program. I would like to build and run the program though a debugger to see if I can find out what is going on.

Cheers

Nick

0 Eugene Hutorny over 10 years ago in reply to Nick Clifton

Intellectual 350 points

uart_echo_1.zip

Hi Nick,

Please find the project in the attached zip.

Best Regards

Eugene

0 Nick Clifton over 10 years ago in reply to Eugene Hutorny

Intellectual 390 points

Hi Eugene,

Thanks - that helped, but unfortunately I cannot reproduce the failure. Part of the problem is that I do not have any MSP430 hardware, so I have to rely upon the simulator. I needed to see your source code so that I could work out which addresses you were using for the uart and leds. But even after modifying the simulator to handle these addresses, when I run your uart_echo_1.out executable I get an output of "BLINK TEST test.count=05".

I don't know what else to try. Are you able to run the program inside a debugger and find out more about why the result shown for you is 0xFF ?

Cheers
Nick

0 Eugene Hutorny over 10 years ago in reply to Nick Clifton

Intellectual 350 points

Hi Nick,

I'm not able to run CSS locally on Win7 - it crashes on start.I ran it on Debian VPC but it has no access to USB.

Therefore I cannot run the executable inside a debugger.

However, I made some additional experiments and I found that only zero initial value is not applied.

If I initialize test::count with a non-zero value ot works as expected.

This 'broken zero' issue also affects any static data: int data = 0x0; would also have value 0xFFFF on start.

0 Nick Clifton over 10 years ago in reply to Eugene Hutorny

Intellectual 390 points

Hi Eugene,

This is very confusing. This zero data problem should have been fixed by the linker script patch. Please could you upload the second version of the executable - the one built with the patched linker script - so that I can examine it ?

Cheers
Nick

0 Eugene Hutorny over 10 years ago in reply to Nick Clifton

Intellectual 350 points

Hi Nick,

Please find attached executable.

2376.uart_echo_1.zip

0 Nick Clifton over 10 years ago in reply to Eugene Hutorny

Intellectual 390 points

Hi Eugene,

Ah ha - right, I think that I may have found it. Please try out this second revision of the linker script. (The difference this time is that the __high_bsssize symbol is always defined, it is not just PROVIDEd. I think that this might be the key).

Cheers

Nick

msp430fr6989.ld.zip

0 Eugene Hutorny over 10 years ago in reply to Nick Clifton

Intellectual 350 points

Yes, I confirm this patch has fixed the issue

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construction of static objects fails with large/lower/upper