On Mon, 22 Sep 2014, Andrew Dixie wrote: > I altered the dwarf2 frame and exception table generation so the > decision on whether to use a read-only or read-write section is an > independent decision from how the frame tables are registered. > I renamed EH_FRAME_IN_DATA_SECTION to EH_FRAME_THROUGH_COLLECT2, as it > now supports read-only, has slightly changed semantics, and I think > this name better reflects what it currently does rather than what it > historically did.
If you rename a target macro, the old target macro name needs to be poisoned in system.h. > 2014-09-22 Andrew Dixie <andr...@gentrack.com> > > Move exception tables to read-only memory on AIX. > * dwarf2asm.c (dw2_asm_output_encoded_addr_rtx): Add call to > ASM_OUTPUT_DWARF_DATAREL. > * dwarf2out.c (switch_to_eh_frame_section): Use a read-only section > even if EH_FRAME_SECTION_NAME is undefined. Add call to > EH_FRAME_THROUGH_COLLECT2. > * except.c (switch_to_exception_section): Use a read-only section > even if EH_FRAME_SECTION_NAME is undefined. > * collect2.c (write_c_file_stat): Provide dbase on AIX. > (scan_prog_file): Don't output __dso_handle nor __gcc_unwind_dbase. > * config/rs6000/aix.h (ASM_PREFERRED_EH_DATA_FORMAT): define. > (EH_TABLES_CAN_BE_READ_ONLY): define. > (ASM_OUTPUT_DWARF_PCREL): define. > (ASM_OUTPUT_DWARF_DATAREL): define. > (EH_FRAME_IN_DATA_SECTION): undefine. > (EH_FRAME_THROUGH_COLLECT2): define. > * config/rs6000/rs6000-aix.c: new file. > (rs6000_aix_asm_output_dwarf_pcrel): new function. > (rs6000_aix_asm_output_dwarf_datarel): new function. > * config/rs6000/rs6000.c (rs6000_xcoff_asm_init_sections): remove > assignment of exception_section. This ChangeLog entry seems very incomplete. It doesn't mention the changes for other architectures, or to defaults.h, or to the documentation, for example. -- Joseph S. Myers jos...@codesourcery.com
