diff options
| -rw-r--r-- | gdb/ChangeLog | 15 | ||||
| -rw-r--r-- | gdb/minsyms.c | 5 | ||||
| -rw-r--r-- | gdb/objfiles.c | 75 | ||||
| -rw-r--r-- | gdb/objfiles.h | 68 | ||||
| -rw-r--r-- | gdb/symtab.c | 12 |
5 files changed, 121 insertions, 54 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 7a8338e..f0797b6 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,5 +1,20 @@ 2019-04-10 Tom Tromey <tom@tromey.com> + * symtab.c (lookup_global_symbol_from_objfile) + (lookup_symbol_in_objfile_from_linkage_name): Use the iterator. + * objfiles.h (class separate_debug_iterator): New. + (class separate_debug_range): New. + (struct objfile) <separate_debug_objfiles>: New method. + (objfile_separate_debug_iterate): Don't declare. + * objfiles.c (separate_debug_iterator::operator++): Rename from + objfile_separate_debug_iterate. + (objfile_relocate, objfile_rebase, objfile_has_symbols): Use the + iterator. + * minsyms.c (lookup_minimal_symbol_by_pc_section): Use the + iterator. + +2019-04-10 Tom Tromey <tom@tromey.com> + * symfile.c (reread_symbols): Remove old comment. * objfiles.c (free_all_objfiles): Fix a typo. diff --git a/gdb/minsyms.c b/gdb/minsyms.c index 34198d1..8037329 100644 --- a/gdb/minsyms.c +++ b/gdb/minsyms.c @@ -696,7 +696,6 @@ lookup_minimal_symbol_by_pc_section (CORE_ADDR pc_in, struct obj_section *sectio int lo; int hi; int newobj; - struct objfile *objfile; struct minimal_symbol *msymbol; struct minimal_symbol *best_symbol = NULL; struct objfile *best_objfile = NULL; @@ -722,9 +721,7 @@ lookup_minimal_symbol_by_pc_section (CORE_ADDR pc_in, struct obj_section *sectio gdb_assert (section != NULL); - for (objfile = section->objfile; - objfile != NULL; - objfile = objfile_separate_debug_iterate (section->objfile, objfile)) + for (struct objfile *objfile : section->objfile->separate_debug_objfiles ()) { CORE_ADDR pc = pc_in; diff --git a/gdb/objfiles.c b/gdb/objfiles.c index ada5edc..e055365 100644 --- a/gdb/objfiles.c +++ b/gdb/objfiles.c @@ -446,44 +446,50 @@ entry_point_address (void) return retval; } -/* Iterator on PARENT and every separate debug objfile of PARENT. - The usage pattern is: - for (objfile = parent; - objfile; - objfile = objfile_separate_debug_iterate (parent, objfile)) - ... -*/ - -struct objfile * -objfile_separate_debug_iterate (const struct objfile *parent, - const struct objfile *objfile) +separate_debug_iterator & +separate_debug_iterator::operator++ () { + gdb_assert (m_objfile != nullptr); + struct objfile *res; /* If any, return the first child. */ - res = objfile->separate_debug_objfile; - if (res) - return res; + res = m_objfile->separate_debug_objfile; + if (res != nullptr) + { + m_objfile = res; + return *this; + } /* Common case where there is no separate debug objfile. */ - if (objfile == parent) - return NULL; + if (m_objfile == m_parent) + { + m_objfile = nullptr; + return *this; + } /* Return the brother if any. Note that we don't iterate on brothers of the parents. */ - res = objfile->separate_debug_objfile_link; - if (res) - return res; + res = m_objfile->separate_debug_objfile_link; + if (res != nullptr) + { + m_objfile = res; + return *this; + } - for (res = objfile->separate_debug_objfile_backlink; - res != parent; + for (res = m_objfile->separate_debug_objfile_backlink; + res != m_parent; res = res->separate_debug_objfile_backlink) { - gdb_assert (res != NULL); - if (res->separate_debug_objfile_link) - return res->separate_debug_objfile_link; + gdb_assert (res != nullptr); + if (res->separate_debug_objfile_link != nullptr) + { + m_objfile = res->separate_debug_objfile_link; + return *this; + } } - return NULL; + m_objfile = nullptr; + return *this; } /* Put one object file before a specified on in the global list. @@ -860,15 +866,15 @@ void objfile_relocate (struct objfile *objfile, const struct section_offsets *new_offsets) { - struct objfile *debug_objfile; int changed = 0; changed |= objfile_relocate1 (objfile, new_offsets); - for (debug_objfile = objfile->separate_debug_objfile; - debug_objfile; - debug_objfile = objfile_separate_debug_iterate (objfile, debug_objfile)) + for (struct objfile *debug_objfile : objfile->separate_debug_objfiles ()) { + if (debug_objfile == objfile) + continue; + section_addr_info objfile_addrs = build_section_addr_info_from_objfile (objfile); @@ -917,14 +923,9 @@ objfile_rebase1 (struct objfile *objfile, CORE_ADDR slide) void objfile_rebase (struct objfile *objfile, CORE_ADDR slide) { - struct objfile *debug_objfile; int changed = 0; - changed |= objfile_rebase1 (objfile, slide); - - for (debug_objfile = objfile->separate_debug_objfile; - debug_objfile; - debug_objfile = objfile_separate_debug_iterate (objfile, debug_objfile)) + for (struct objfile *debug_objfile : objfile->separate_debug_objfiles ()) changed |= objfile_rebase1 (debug_objfile, slide); /* Relocate breakpoints as necessary, after things are relocated. */ @@ -965,9 +966,7 @@ objfile_has_full_symbols (struct objfile *objfile) int objfile_has_symbols (struct objfile *objfile) { - struct objfile *o; - - for (o = objfile; o; o = objfile_separate_debug_iterate (objfile, o)) + for (struct objfile *o : objfile->separate_debug_objfiles ()) if (objfile_has_partial_symbols (o) || objfile_has_full_symbols (o)) return 1; return 0; diff --git a/gdb/objfiles.h b/gdb/objfiles.h index 368d9f3..168f7fc 100644 --- a/gdb/objfiles.h +++ b/gdb/objfiles.h @@ -318,6 +318,63 @@ struct objfile_per_bfd_storage std::bitset<nr_languages> demangled_hash_languages; }; +/* An iterator that first returns a parent objfile, and then each + separate debug objfile. */ + +class separate_debug_iterator +{ +public: + + explicit separate_debug_iterator (struct objfile *objfile) + : m_objfile (objfile), + m_parent (objfile) + { + } + + bool operator!= (const separate_debug_iterator &other) + { + return m_objfile != other.m_objfile; + } + + separate_debug_iterator &operator++ (); + + struct objfile *operator* () + { + return m_objfile; + } + +private: + + struct objfile *m_objfile; + struct objfile *m_parent; +}; + +/* A range adapter wrapping separate_debug_iterator. */ + +class separate_debug_range +{ +public: + + explicit separate_debug_range (struct objfile *objfile) + : m_objfile (objfile) + { + } + + separate_debug_iterator begin () + { + return separate_debug_iterator (m_objfile); + } + + separate_debug_iterator end () + { + return separate_debug_iterator (nullptr); + } + +private: + + struct objfile *m_objfile; +}; + /* Master structure for keeping track of each file from which gdb reads symbols. There are several ways these get allocated: 1. The main symbol file, symfile_objfile, set by the symbol-file command, @@ -396,6 +453,14 @@ struct objfile return msymbols_range (this); } + /* Return a range adapter for iterating over all the separate debug + objfiles of this objfile. */ + + separate_debug_range separate_debug_objfiles () + { + return separate_debug_range (this); + } + /* All struct objfile's are chained together by their next pointers. The program space field "objfiles" (frequently referenced via @@ -563,9 +628,6 @@ extern CORE_ADDR entry_point_address (void); extern void build_objfile_section_table (struct objfile *); -extern struct objfile *objfile_separate_debug_iterate (const struct objfile *, - const struct objfile *); - extern void put_objfile_before (struct objfile *, struct objfile *); extern void add_separate_debug_objfile (struct objfile *, struct objfile *); diff --git a/gdb/symtab.c b/gdb/symtab.c index d25f560..16e641a 100644 --- a/gdb/symtab.c +++ b/gdb/symtab.c @@ -2246,11 +2246,7 @@ lookup_global_symbol_from_objfile (struct objfile *main_objfile, const char *name, const domain_enum domain) { - struct objfile *objfile; - - for (objfile = main_objfile; - objfile; - objfile = objfile_separate_debug_iterate (main_objfile, objfile)) + for (struct objfile *objfile : main_objfile->separate_debug_objfiles ()) { struct block_symbol result = lookup_symbol_in_objfile (objfile, GLOBAL_BLOCK, name, domain); @@ -2327,7 +2323,7 @@ lookup_symbol_in_objfile_from_linkage_name (struct objfile *objfile, domain_enum domain) { enum language lang = current_language->la_language; - struct objfile *main_objfile, *cur_objfile; + struct objfile *main_objfile; demangle_result_storage storage; const char *modified_name = demangle_for_lookup (linkage_name, lang, storage); @@ -2337,9 +2333,7 @@ lookup_symbol_in_objfile_from_linkage_name (struct objfile *objfile, else main_objfile = objfile; - for (cur_objfile = main_objfile; - cur_objfile; - cur_objfile = objfile_separate_debug_iterate (main_objfile, cur_objfile)) + for (struct objfile *cur_objfile : main_objfile->separate_debug_objfiles ()) { struct block_symbol result; |