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49fced1206
Putting the name, comp_dir and producer strings in the .debug_str section
makes it possible to share them across CUs. This saves a small amount of
space (about ~20K on a glibc libc.so.6 build with debuginfo). And makes
it easier for tools like rpm debugedit to adjust the source paths when
generating separate debuginfo files.
gas/
* dwarf2dbg.c (out_debug_abbrev): Use DW_FORM_strp instead of
DW_FORM_string for DW_AT_name, DW_AT_comp_dir and DW_AT_producer.
(out_debug_info): Accept symbols to name, comp_dir and producer
in the .debug_str section and emit those offsets not full strings.
(out_debug_str): New function that outputs the strings for name,
comp_dir and producer in .debug_str and generates symbols to
those strings.
(out_debug_line): Create a .debug_str section if necessary and
call out_debug_str before calling out_debug_info.
* testsuite/gas/aarch64/dwarf.d: Add extra section symbol to
expected output.
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| gas | ||
| lib | ||
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| ChangeLog-2015 | ||
| ChangeLog-9303 | ||