diff options
Diffstat (limited to 'gdb')
| -rw-r--r-- | gdb/ChangeLog | 13 | ||||
| -rw-r--r-- | gdb/dwarf2/public.h | 11 | ||||
| -rw-r--r-- | gdb/dwarf2/read.c | 73 | ||||
| -rw-r--r-- | gdb/elfread.c | 37 |
4 files changed, 66 insertions, 68 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 9e8f2f4..70e8ad7 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,16 @@ +2021-03-28 Tom Tromey <tom@tromey.com> + + * elfread.c (can_lazily_read_symbols): Move to dwarf2/read.c. + (elf_symfile_read): Simplify. + * dwarf2/read.c (struct lazy_dwarf_reader): Move from elfread.c. + (make_lazy_dwarf_reader): New function. + (make_dwarf_gdb_index, make_dwarf_debug_names): Now static. + (dwarf2_initialize_objfile): Return void. Remove index_kind + parameter. Push on 'qf' list. + * dwarf2/public.h (dwarf2_initialize_objfile): Change return + type. Remove 'index_kind' parameter. + (make_dwarf_gdb_index, make_dwarf_debug_names): Don't declare. + 2021-03-27 Tom Tromey <tom@tromey.com> * elfread.c (elf_sym_fns_lazy_psyms): Don't declare. diff --git a/gdb/dwarf2/public.h b/gdb/dwarf2/public.h index e6653f4..33bb5d4 100644 --- a/gdb/dwarf2/public.h +++ b/gdb/dwarf2/public.h @@ -34,18 +34,13 @@ enum class dw_index_kind DEBUG_NAMES, }; -/* Initialize for reading DWARF for OBJFILE. Return false if this - file will use psymtabs, or true if using an index, in which case - *INDEX_KIND is set to the index variant in use. */ -extern bool dwarf2_initialize_objfile (struct objfile *objfile, - dw_index_kind *index_kind); +/* Initialize for reading DWARF for OBJFILE, and push the appropriate + entry on the objfile's "qf" list. */ +extern void dwarf2_initialize_objfile (struct objfile *objfile); struct psymbol_functions; extern void dwarf2_build_psymtabs (struct objfile *, psymbol_functions *psf = nullptr); extern void dwarf2_build_frame_info (struct objfile *); -extern quick_symbol_functions_up make_dwarf_gdb_index (); -extern quick_symbol_functions_up make_dwarf_debug_names (); - #endif /* DWARF2_PUBLIC_H */ diff --git a/gdb/dwarf2/read.c b/gdb/dwarf2/read.c index b324541..1b98b75 100644 --- a/gdb/dwarf2/read.c +++ b/gdb/dwarf2/read.c @@ -2191,6 +2191,30 @@ struct dwarf2_per_cu_quick_data unsigned int no_file_data : 1; }; +/* A subclass of psymbol_functions that arranges to read the DWARF + partial symbols when needed. */ +struct lazy_dwarf_reader : public psymbol_functions +{ + using psymbol_functions::psymbol_functions; + + bool can_lazily_read_symbols () override + { + return true; + } + + void read_partial_symbols (struct objfile *objfile) override + { + if (dwarf2_has_info (objfile, nullptr)) + dwarf2_build_psymtabs (objfile, this); + } +}; + +static quick_symbol_functions_up +make_lazy_dwarf_reader () +{ + return quick_symbol_functions_up (new lazy_dwarf_reader); +} + struct dwarf2_base_index_functions : public quick_symbol_functions { bool has_symbols (struct objfile *objfile) override; @@ -2292,13 +2316,13 @@ struct dwarf2_debug_names_index : public dwarf2_base_index_functions enum search_domain kind) override; }; -quick_symbol_functions_up +static quick_symbol_functions_up make_dwarf_gdb_index () { return quick_symbol_functions_up (new dwarf2_gdb_index); } -quick_symbol_functions_up +static quick_symbol_functions_up make_dwarf_debug_names () { return quick_symbol_functions_up (new dwarf2_debug_names_index); @@ -5993,10 +6017,10 @@ get_gdb_index_contents_from_cache_dwz (objfile *obj, dwz_file *dwz) return global_index_cache.lookup_gdb_index (build_id, &dwz->index_cache_res); } -/* See symfile.h. */ +/* See dwarf2/public.h. */ -bool -dwarf2_initialize_objfile (struct objfile *objfile, dw_index_kind *index_kind) +void +dwarf2_initialize_objfile (struct objfile *objfile) { dwarf2_per_objfile *per_objfile = get_dwarf2_per_objfile (objfile); dwarf2_per_bfd *per_bfd = per_objfile->per_bfd; @@ -6016,9 +6040,9 @@ dwarf2_initialize_objfile (struct objfile *objfile, dw_index_kind *index_kind) if (per_bfd->using_index) { dwarf_read_debug_printf ("using_index already set"); - *index_kind = dw_index_kind::GDB_INDEX; per_objfile->resize_symtabs (); - return true; + objfile->qf.push_front (make_dwarf_gdb_index ()); + return; } per_bfd->using_index = 1; @@ -6037,11 +6061,11 @@ dwarf2_initialize_objfile (struct objfile *objfile, dw_index_kind *index_kind) struct dwarf2_per_cu_quick_data); } - /* Return 1 so that gdb sees the "quick" functions. However, - these functions will be no-ops because we will have expanded - all symtabs. */ - *index_kind = dw_index_kind::GDB_INDEX; - return true; + /* Arrange for gdb to see the "quick" functions. However, these + functions will be no-ops because we will have expanded all + symtabs. */ + objfile->qf.push_front (make_dwarf_gdb_index ()); + return; } /* Was a debug names index already read when we processed an objfile sharing @@ -6049,9 +6073,9 @@ dwarf2_initialize_objfile (struct objfile *objfile, dw_index_kind *index_kind) if (per_bfd->debug_names_table != nullptr) { dwarf_read_debug_printf ("re-using shared debug names table"); - *index_kind = dw_index_kind::DEBUG_NAMES; per_objfile->resize_symtabs (); - return true; + objfile->qf.push_front (make_dwarf_debug_names ()); + return; } /* Was a GDB index already read when we processed an objfile sharing @@ -6059,9 +6083,9 @@ dwarf2_initialize_objfile (struct objfile *objfile, dw_index_kind *index_kind) if (per_bfd->index_table != nullptr) { dwarf_read_debug_printf ("re-using shared index table"); - *index_kind = dw_index_kind::GDB_INDEX; per_objfile->resize_symtabs (); - return true; + objfile->qf.push_front (make_dwarf_gdb_index ()); + return; } /* There might already be partial symtabs built for this BFD. This happens @@ -6072,15 +6096,16 @@ dwarf2_initialize_objfile (struct objfile *objfile, dw_index_kind *index_kind) if (per_bfd->partial_symtabs != nullptr) { dwarf_read_debug_printf ("re-using shared partial symtabs"); - return false; + objfile->qf.push_front (make_lazy_dwarf_reader ()); + return; } if (dwarf2_read_debug_names (per_objfile)) { dwarf_read_debug_printf ("found debug names"); - *index_kind = dw_index_kind::DEBUG_NAMES; per_objfile->resize_symtabs (); - return true; + objfile->qf.push_front (make_dwarf_debug_names ()); + return; } if (dwarf2_read_gdb_index (per_objfile, @@ -6088,9 +6113,9 @@ dwarf2_initialize_objfile (struct objfile *objfile, dw_index_kind *index_kind) get_gdb_index_contents_from_section<dwz_file>)) { dwarf_read_debug_printf ("found gdb index from file"); - *index_kind = dw_index_kind::GDB_INDEX; per_objfile->resize_symtabs (); - return true; + objfile->qf.push_front (make_dwarf_gdb_index ()); + return; } /* ... otherwise, try to find the index in the index cache. */ @@ -6100,13 +6125,13 @@ dwarf2_initialize_objfile (struct objfile *objfile, dw_index_kind *index_kind) { dwarf_read_debug_printf ("found gdb index from cache"); global_index_cache.hit (); - *index_kind = dw_index_kind::GDB_INDEX; per_objfile->resize_symtabs (); - return true; + objfile->qf.push_front (make_dwarf_gdb_index ()); + return; } global_index_cache.miss (); - return false; + objfile->qf.push_front (make_lazy_dwarf_reader ()); } diff --git a/gdb/elfread.c b/gdb/elfread.c index f5de913..1dea226 100644 --- a/gdb/elfread.c +++ b/gdb/elfread.c @@ -53,24 +53,6 @@ #include "debuginfod-support.h" #include "dwarf2/public.h" -/* A subclass of psymbol_functions that arranges to read the DWARF - partial symbols when needed. */ -struct lazy_dwarf_reader : public psymbol_functions -{ - using psymbol_functions::psymbol_functions; - - bool can_lazily_read_symbols () override - { - return true; - } - - void read_partial_symbols (struct objfile *objfile) override - { - if (dwarf2_has_info (objfile, nullptr)) - dwarf2_build_psymtabs (objfile, this); - } -}; - /* The struct elfinfo is available only during ELF symbol table and psymtab reading. It is destroyed at the completion of psymtab-reading. It's local to elf_symfile_read. */ @@ -1273,24 +1255,7 @@ elf_symfile_read (struct objfile *objfile, symfile_add_flags symfile_flags) } if (dwarf2_has_info (objfile, NULL, true)) - { - dw_index_kind index_kind; - - if (dwarf2_initialize_objfile (objfile, &index_kind)) - { - switch (index_kind) - { - case dw_index_kind::GDB_INDEX: - objfile->qf.push_front (make_dwarf_gdb_index ()); - break; - case dw_index_kind::DEBUG_NAMES: - objfile->qf.push_front (make_dwarf_debug_names ()); - break; - } - } - else - objfile->qf.emplace_front (new lazy_dwarf_reader); - } + dwarf2_initialize_objfile (objfile); /* If the file has its own symbol tables it has no separate debug info. `.dynsym'/`.symtab' go to MSYMBOLS, `.debug_info' goes to SYMTABS/PSYMTABS. `.gnu_debuglink' may no longer be present with |