On 20/08/2021 10:22, Werthmann Luca via Gcc-help wrote: > Hello, > > I am writing to ask if there is a chance with the GNU GCC Compiler to group __attribute__((section (“NAME”))) statements. > > IAR Supports for example the following commands: > > # pragma default_function_attributes = @ ".MY_FUNC" /* start placing following functions in section .MY_FUNC */ > # pragma default_function_attributes = /* stop placing functions in section*/ > > # pragma default_variable_attributes = @ ".MY_DATA" /* start placing following variables in section .MY_DATA */ > # pragma default_variable_attributes = /* stop placing functions in section*/ > > An example how to use these pragma directives is attached. <pragma_section_group_iar.c> > > If I compile this *.c code I got some warnings that the GNU GCC does not support these statements. > After some research I found that the corresponding statement for GNU GCC is __attribute__((section (“.MY_FUNC”))) > I tried compiling it with these and it worked. <pragma_section_group_gcc.c> > > I have more than 5k lines in my code and need to replace the IAR statements for the corresponding GCC Commands. > Is there a chance to group these statements like IAR supports or do I need to add __attribute__((section (“NAME”))) in each line > > I look forward to hearing from you soon. > > Best regards, > To the best of my knowledge, there is no way to do this in gcc - you have to put the section attribute on each function. (You can use a macro to reduce the typing!) If you are versed in linker files, it is possible to have a modified linker setup to put the code or data from a specific file into non-standard output sections. I too would like to see this as a feature in gcc - it is one of the few features that are common to most embedded compilers but missing from gcc. David
