printf4.o(i.__0vsprintf$4) refers to printf4.o(i._sputc) for _sputc
    printf4.o(i._printf_core) refers to uldiv.o(.text) for __aeabi_uldivmod
    printf5.o(i.__0fprintf$5) refers to printf5.o(i._printf_core) for _printf_core
    printf5.o(i.__0fprintf$5) refers to usart.o(.text) for fputc
    printf5.o(i.__0printf$5) refers to printf5.o(i._printf_core) for _printf_core
    printf5.o(i.__0printf$5) refers to usart.o(.text) for fputc
    printf5.o(i.__0printf$5) refers to stdout.o(.data) for __stdout
    printf5.o(i.__0snprintf$5) refers to printf5.o(i._printf_core) for _printf_core
    printf5.o(i.__0snprintf$5) refers to printf5.o(i._snputc) for _snputc
    printf5.o(i.__0sprintf$5) refers to printf5.o(i._printf_core) for _printf_core
    printf5.o(i.__0sprintf$5) refers to printf5.o(i._sputc) for _sputc
    printf5.o(i.__0vfprintf$5) refers to printf5.o(i._printf_core) for _printf_core
    printf5.o(i.__0vfprintf$5) refers to usart.o(.text) for fputc
    printf5.o(i.__0vprintf$5) refers to printf5.o(i._printf_core) for _printf_core
    printf5.o(i.__0vprintf$5) refers to usart.o(.text) for fputc
    printf5.o(i.__0vprintf$5) refers to stdout.o(.data) for __stdout
    printf5.o(i.__0vsnprintf$5) refers to printf5.o(i._printf_core) for _printf_core
    printf5.o(i.__0vsnprintf$5) refers to printf5.o(i._snputc) for _snputc
    printf5.o(i.__0vsprintf$5) refers to printf5.o(i._printf_core) for _printf_core
    printf5.o(i.__0vsprintf$5) refers to printf5.o(i._sputc) for _sputc
    printf5.o(i._printf_core) refers to uldiv.o(.text) for __aeabi_uldivmod
    printf6.o(i.__0fprintf$6) refers to printf6.o(i._printf_core) for _printf_core
    printf6.o(i.__0fprintf$6) refers to usart.o(.text) for fputc
    printf6.o(i.__0printf$6) refers to printf6.o(i._printf_core) for _printf_core
    printf6.o(i.__0printf$6) refers to usart.o(.text) for fputc
    printf6.o(i.__0printf$6) refers to stdout.o(.data) for __stdout
    printf6.o(i.__0snprintf$6) refers to printf6.o(i._printf_core) for _printf_core
    printf6.o(i.__0snprintf$6) refers to printf6.o(i._snputc) for _snputc
    printf6.o(i.__0sprintf$6) refers to printf6.o(i._printf_core) for _printf_core
    printf6.o(i.__0sprintf$6) refers to printf6.o(i._sputc) for _sputc
    printf6.o(i.__0vfprintf$6) refers to printf6.o(i._printf_core) for _printf_core
    printf6.o(i.__0vfprintf$6) refers to usart.o(.text) for fputc
    printf6.o(i.__0vprintf$6) refers to printf6.o(i._printf_core) for _printf_core
    printf6.o(i.__0vprintf$6) refers to usart.o(.text) for fputc
    printf6.o(i.__0vprintf$6) refers to stdout.o(.data) for __stdout
    printf6.o(i.__0vsnprintf$6) refers to printf6.o(i._printf_core) for _printf_core
    printf6.o(i.__0vsnprintf$6) refers to printf6.o(i._snputc) for _snputc
    printf6.o(i.__0vsprintf$6) refers to printf6.o(i._printf_core) for _printf_core
    printf6.o(i.__0vsprintf$6) refers to printf6.o(i._sputc) for _sputc
    printf6.o(i._printf_core) refers to printf6.o(i._printf_pre_padding) for _printf_pre_padding
    printf6.o(i._printf_core) refers to uidiv.o(.text) for __aeabi_uidivmod
    printf6.o(i._printf_core) refers to printf6.o(i._printf_post_padding) for _printf_post_padding
    printf7.o(i.__0fprintf$7) refers to printf7.o(i._printf_core) for _printf_core
    printf7.o(i.__0fprintf$7) refers to usart.o(.text) for fputc
    printf7.o(i.__0printf$7) refers to printf7.o(i._printf_core) for _printf_core
    printf7.o(i.__0printf$7) refers to usart.o(.text) for fputc
    printf7.o(i.__0printf$7) refers to stdout.o(.data) for __stdout
    printf7.o(i.__0snprintf$7) refers to printf7.o(i._printf_core) for _printf_core
    printf7.o(i.__0snprintf$7) refers to printf7.o(i._snputc) for _snputc
    printf7.o(i.__0sprintf$7) refers to printf7.o(i._printf_core) for _printf_core
    printf7.o(i.__0sprintf$7) refers to printf7.o(i._sputc) for _sputc
    printf7.o(i.__0vfprintf$7) refers to printf7.o(i._printf_core) for _printf_core
    printf7.o(i.__0vfprintf$7) refers to usart.o(.text) for fputc
    printf7.o(i.__0vprintf$7) refers to printf7.o(i._printf_core) for _printf_core
    printf7.o(i.__0vprintf$7) refers to usart.o(.text) for fputc
    printf7.o(i.__0vprintf$7) refers to stdout.o(.data) for __stdout
    printf7.o(i.__0vsnprintf$7) refers to printf7.o(i._printf_core) for _printf_core
    printf7.o(i.__0vsnprintf$7) refers to printf7.o(i._snputc) for _snputc
    printf7.o(i.__0vsprintf$7) refers to printf7.o(i._printf_core) for _printf_core
    printf7.o(i.__0vsprintf$7) refers to printf7.o(i._sputc) for _sputc
    printf7.o(i._printf_core) refers to printf7.o(i._printf_pre_padding) for _printf_pre_padding
    printf7.o(i._printf_core) refers to uldiv.o(.text) for __aeabi_uldivmod
    printf7.o(i._printf_core) refers to printf7.o(i._printf_post_padding) for _printf_post_padding
    printf8.o(i.__0fprintf$8) refers to printf8.o(i._printf_core) for _printf_core
    printf8.o(i.__0fprintf$8) refers to usart.o(.text) for fputc
    printf8.o(i.__0printf$8) refers to printf8.o(i._printf_core) for _printf_core
    printf8.o(i.__0printf$8) refers to usart.o(.text) for fputc
    printf8.o(i.__0printf$8) refers to stdout.o(.data) for __stdout
    printf8.o(i.__0snprintf$8) refers to printf8.o(i._printf_core) for _printf_core
    printf8.o(i.__0snprintf$8) refers to printf8.o(i._snputc) for _snputc
    printf8.o(i.__0sprintf$8) refers to printf8.o(i._printf_core) for _printf_core
    printf8.o(i.__0sprintf$8) refers to printf8.o(i._sputc) for _sputc
    printf8.o(i.__0vfprintf$8) refers to printf8.o(i._printf_core) for _printf_core
    printf8.o(i.__0vfprintf$8) refers to usart.o(.text) for fputc
    printf8.o(i.__0vprintf$8) refers to printf8.o(i._printf_core) for _printf_core
    printf8.o(i.__0vprintf$8) refers to usart.o(.text) for fputc
    printf8.o(i.__0vprintf$8) refers to stdout.o(.data) for __stdout
    printf8.o(i.__0vsnprintf$8) refers to printf8.o(i._printf_core) for _printf_core
    printf8.o(i.__0vsnprintf$8) refers to printf8.o(i._snputc) for _snputc
    printf8.o(i.__0vsprintf$8) refers to printf8.o(i._printf_core) for _printf_core
    printf8.o(i.__0vsprintf$8) refers to printf8.o(i._sputc) for _sputc
    printf8.o(i._printf_core) refers to printf8.o(i._printf_pre_padding) for _printf_pre_padding
    printf8.o(i._printf_core) refers to uldiv.o(.text) for __aeabi_uldivmod
    printf8.o(i._printf_core) refers to printf8.o(i._printf_post_padding) for _printf_post_padding
    printfa.o(i.__0fprintf) refers (Special) to iusefp.o(.text) for __I$use$fp
    printfa.o(i.__0fprintf) refers to printfa.o(i._printf_core) for _printf_core
    printfa.o(i.__0fprintf) refers to usart.o(.text) for fputc
    printfa.o(i.__0printf) refers (Special) to iusefp.o(.text) for __I$use$fp
    printfa.o(i.__0printf) refers to printfa.o(i._printf_core) for _printf_core
    printfa.o(i.__0printf) refers to usart.o(.text) for fputc
    printfa.o(i.__0printf) refers to stdout.o(.data) for __stdout
    printfa.o(i.__0snprintf) refers (Special) to iusefp.o(.text) for __I$use$fp
    printfa.o(i.__0snprintf) refers to printfa.o(i._printf_core) for _printf_core
    printfa.o(i.__0snprintf) refers to printfa.o(i._snputc) for _snputc
    printfa.o(i.__0sprintf) refers (Special) to iusefp.o(.text) for __I$use$fp
    printfa.o(i.__0sprintf) refers to printfa.o(i._printf_core) for _printf_core
    printfa.o(i.__0sprintf) refers to printfa.o(i._sputc) for _sputc
    printfa.o(i.__0vfprintf) refers (Special) to iusefp.o(.text) for __I$use$fp
    printfa.o(i.__0vfprintf) refers to printfa.o(i._printf_core) for _printf_core
    printfa.o(i.__0vfprintf) refers to usart.o(.text) for fputc
    printfa.o(i.__0vprintf) refers (Special) to iusefp.o(.text) for __I$use$fp
    printfa.o(i.__0vprintf) refers to printfa.o(i._printf_core) for _printf_core
    printfa.o(i.__0vprintf) refers to usart.o(.text) for fputc
    printfa.o(i.__0vprintf) refers to stdout.o(.data) for __stdout
    printfa.o(i.__0vsnprintf) refers (Special) to iusefp.o(.text) for __I$use$fp
    printfa.o(i.__0vsnprintf) refers to printfa.o(i._printf_core) for _printf_core
    printfa.o(i.__0vsnprintf) refers to printfa.o(i._snputc) for _snputc
    printfa.o(i.__0vsprintf) refers (Special) to iusefp.o(.text) for __I$use$fp
    printfa.o(i.__0vsprintf) refers to printfa.o(i._printf_core) for _printf_core
    printfa.o(i.__0vsprintf) refers to printfa.o(i._sputc) for _sputc
    printfa.o(i._fp_digits) refers (Special) to iusefp.o(.text) for __I$use$fp
    printfa.o(i._fp_digits) refers to dmul.o(.text) for __aeabi_dmul
    printfa.o(i._fp_digits) refers to ddiv.o(.text) for __aeabi_ddiv
    printfa.o(i._fp_digits) refers to cdrcmple.o(.text) for __aeabi_cdrcmple
    printfa.o(i._fp_digits) refers to dadd.o(.text) for __aeabi_dadd
    printfa.o(i._fp_digits) refers to dfixul.o(.text) for __aeabi_d2ulz
    printfa.o(i._fp_digits) refers to uldiv.o(.text) for __aeabi_uldivmod
    printfa.o(i._printf_core) refers (Special) to iusefp.o(.text) for __I$use$fp
    printfa.o(i._printf_core) refers to printfa.o(i._printf_pre_padding) for _printf_pre_padding
    printfa.o(i._printf_core) refers to uldiv.o(.text) for __aeabi_uldivmod
    printfa.o(i._printf_core) refers to printfa.o(i._printf_post_padding) for _printf_post_padding
    printfa.o(i._printf_core) refers to printfa.o(i._fp_digits) for _fp_digits
    printfa.o(i._printf_core) refers to uidiv.o(.text) for __aeabi_uidivmod
    printfa.o(i._printf_post_padding) refers (Special) to iusefp.o(.text) for __I$use$fp
    printfa.o(i._printf_pre_padding) refers (Special) to iusefp.o(.text) for __I$use$fp
    printfa.o(i._snputc) refers (Special) to iusefp.o(.text) for __I$use$fp
    printfa.o(i._sputc) refers (Special) to iusefp.o(.text) for __I$use$fp
    entry2.o(.ARM.Collect$$$$00000001) refers to entry2.o(.ARM.Collect$$$$00002712) for __lit__00000000
    entry2.o(.ARM.Collect$$$$00002712) refers to startup_stm32f10x_hd.o(STACK) for __initial_sp
    entry2.o(__vectab_stack_and_reset_area) refers to startup_stm32f10x_hd.o(STACK) for __initial_sp
    entry2.o(__vectab_stack_and_reset_area) refers to entry.o(.ARM.Collect$$$$00000000) for __main
    entry5.o(.ARM.Collect$$$$00000004) refers to init.o(.text) for __scatterload
    entry7.o(.ARM.Collect$$$$00000007) refers to main.o(.text) for main
    uldiv.o(.text) refers to llushr.o(.text) for __aeabi_llsr
    uldiv.o(.text) refers to llshl.o(.text) for __aeabi_llsl
    dadd.o(.text) refers to llshl.o(.text) for __aeabi_llsl
    dadd.o(.text) refers to llsshr.o(.text) for __aeabi_lasr
    dadd.o(.text) refers to depilogue.o(.text) for _double_epilogue
    dmul.o(.text) refers to depilogue.o(.text) for _double_epilogue
    ddiv.o(.text) refers to depilogue.o(.text) for _double_round
    dfixul.o(.text) refers to llushr.o(.text) for __aeabi_llsr
    dfixul.o(.text) refers to llshl.o(.text) for __aeabi_llsl
    init.o(.text) refers to entry5.o(.ARM.Collect$$$$00000004) for __main_after_scatterload
    depilogue.o(.text) refers to llshl.o(.text) for __aeabi_llsl
    depilogue.o(.text) refers to llushr.o(.text) for __aeabi_llsr


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Removing Unused input sections from the image.