Hi Libor,
Unfortunately the above code does not work for the following reasons:
- sections are already created in that point of code
- symbol filtering requires output sections to be created
- cannot find bfd_remove_section function that could handle it
However, this code removes the sections unconditionally regardless of whether
.symtab is kept or not. I can image that GNU strip could be called in two
passes: the first pass could remove .symtab and .strtab sections; the second
pass would strip .SUNW_sym*sort sections if .symtab section was stripped in the
first pass. A big disadvantage is that it introduces double performance
overhead... Any ideas?
A few - but all untested...
* Create a hook in elf64-sparc.c for the elf_backend_section_processing()
function
and have it change the section's type to SHT_NULL, so that they are ignored.
(But still present which would be bad...)
* Alternatively maybe the elf_backend_always_size_sections() can be used to
detect
empty symbol tables and eliminate the special sections.
* Or the elf_backend_begin_write_processing() function could adjust the
section
header table to skip the offendng sections.
* Add code to objcopy.c:is_strip_section_1 () that identifies these sections
and
returns TRUE if their symbol section is empty.
Cheers
Nick
