collect2.c
71.6 KB
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collect2.c (DO_COLLECT_EXPORT_LIST): New internal macro, always defined. · 7e49a4b3
* collect2.c (DO_COLLECT_EXPORT_LIST): New internal macro, always defined. Reflect definition or absence of such for COLLECT_EXPORT_LIST. Readability helper. (scanfilter): New enum, to help control what symbols are to be considered or ignored by scan_prog_file. (enum pass): Rename as "scanpass", moved together with scanfilter prior to scan_prog_file's prototype. (scan_prog_file): Accept and honor scanpass and scanfilter arguments. Group prototype with the scanpass/scanfilter definitions, factorize head comments for the several implementations at the prototype. (main): Reorganize the first pass link control to let AIX drag only the needed frame tables in executables. Prevent frame tables collection during the scan aimed at static ctors. Pre-link and scan for frame tables later to compensate. * doc/tm.texi (ASM_OUTPUT_DWARF_TABLE_REF): New macro. A C statement to issue assembly directives that create a reference to the given DWARF table identifier label from the current function section. * dwarf2out.c (switch_to_eh_frame_section): Add a BACK argument to differentiate first time section entry. Only emit a .data tables start identifier label the first time around. (switch_to_frame_table_section): New function. Helper for output_call_frame_info to switch possibly BACK into the eh_frame or the debug_frame section depending on FOR_EH. (output_call_frame_info): Use helper to first enter the proper frame section. (output_fde): Use ASM_OUTPUT_DWARF_TABLE_REF when defined to emit a link to the frame table start label from each function section. * config/rs6000/rs6000.c (rs6000_aix_asm_output_dwarf_table_ref): New function. Implementation of ASM_OUTPUT_DWARF_TABLE_REF. * config/rs6000/rs6000-protos.h: Declare it. * config/rs6000/aix.h (ASM_OUTPUT_DWARF_TABLE_REF): Define. From-SVN: r151157
Olivier Hainque committed