From 5bb6e9dd7090cacb02bbe9f20d8b101a59a3bf99 Mon Sep 17 00:00:00 2001 From: Tom Tromey Date: Sat, 19 Sep 2020 11:54:49 -0600 Subject: [PATCH] Use gdb_bfd_sections in dwarf2/read.c This changes some functions in dwarf2/read.c to avoid bfd_map_over_sections, in favor of iteration. gdb/ChangeLog 2020-09-19 Tom Tromey * dwarf2/read.c (locate_dwz_sections): Change parameters. (dwarf2_get_dwz_file): Use foreach. (dwarf2_locate_dwo_sections): Change parameters. (open_and_init_dwo_file): Use foreach. (dwarf2_locate_common_dwp_sections): Change parameters. (open_and_init_dwp_file): Use foreach. --- gdb/ChangeLog | 9 +++++++++ gdb/dwarf2/read.c | 50 +++++++++++++++++++++++------------------------ 2 files changed, 33 insertions(+), 26 deletions(-) diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 9f5cf4466f3..dab34bf4921 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,12 @@ +2020-09-19 Tom Tromey + + * dwarf2/read.c (locate_dwz_sections): Change parameters. + (dwarf2_get_dwz_file): Use foreach. + (dwarf2_locate_dwo_sections): Change parameters. + (open_and_init_dwo_file): Use foreach. + (dwarf2_locate_common_dwp_sections): Change parameters. + (open_and_init_dwp_file): Use foreach. + 2020-09-19 Tom Tromey * symfile.h: (find_lowest_section): Don't declare. diff --git a/gdb/dwarf2/read.c b/gdb/dwarf2/read.c index 8cd1ace9714..a339141ce0b 100644 --- a/gdb/dwarf2/read.c +++ b/gdb/dwarf2/read.c @@ -2120,10 +2120,8 @@ dwarf2_get_section_info (struct objfile *objfile, /* A helper function to find the sections for a .dwz file. */ static void -locate_dwz_sections (bfd *abfd, asection *sectp, void *arg) +locate_dwz_sections (bfd *abfd, asection *sectp, dwz_file *dwz_file) { - struct dwz_file *dwz_file = (struct dwz_file *) arg; - /* Note that we only support the standard ELF names, because .dwz is ELF-only (at the time of writing). */ if (section_is_p (sectp->name, &dwarf2_elf_names.abbrev)) @@ -2246,8 +2244,8 @@ dwarf2_get_dwz_file (dwarf2_per_bfd *per_bfd) std::unique_ptr result (new struct dwz_file (std::move (dwz_bfd))); - bfd_map_over_sections (result->dwz_bfd.get (), locate_dwz_sections, - result.get ()); + for (asection *sec : gdb_bfd_sections (result->dwz_bfd)) + locate_dwz_sections (result->dwz_bfd.get (), sec, result.get ()); gdb_bfd_record_inclusion (per_bfd->obfd, result->dwz_bfd.get ()); per_bfd->dwz_file = std::move (result); @@ -11915,9 +11913,9 @@ create_dwp_hash_table (dwarf2_per_objfile *per_objfile, /* Update SECTIONS with the data from SECTP. - This function is like the other "locate" section routines that are - passed to bfd_map_over_sections, but in this context the sections to - read comes from the DWP V1 hash table, not the full ELF section table. + This function is like the other "locate" section routines, but in + this context the sections to read comes from the DWP V1 hash table, + not the full ELF section table. The result is non-zero for success, or zero if an error was found. */ @@ -12730,9 +12728,9 @@ open_dwo_file (dwarf2_per_objfile *per_objfile, size of each of the DWO debugging sections we are interested in. */ static void -dwarf2_locate_dwo_sections (bfd *abfd, asection *sectp, void *dwo_sections_ptr) +dwarf2_locate_dwo_sections (bfd *abfd, asection *sectp, + dwo_sections *dwo_sections) { - struct dwo_sections *dwo_sections = (struct dwo_sections *) dwo_sections_ptr; const struct dwop_section_names *names = &dwop_section_names; if (section_is_p (sectp->name, &names->abbrev_dwo)) @@ -12819,8 +12817,9 @@ open_and_init_dwo_file (dwarf2_cu *cu, const char *dwo_name, dwo_file->comp_dir = comp_dir; dwo_file->dbfd = std::move (dbfd); - bfd_map_over_sections (dwo_file->dbfd.get (), dwarf2_locate_dwo_sections, - &dwo_file->sections); + for (asection *sec : gdb_bfd_sections (dwo_file->dbfd)) + dwarf2_locate_dwo_sections (dwo_file->dbfd.get (), sec, + &dwo_file->sections); create_cus_hash_table (per_objfile, cu, *dwo_file, dwo_file->sections.info, dwo_file->cus); @@ -12849,9 +12848,8 @@ open_and_init_dwo_file (dwarf2_cu *cu, const char *dwo_name, static void dwarf2_locate_common_dwp_sections (bfd *abfd, asection *sectp, - void *dwp_file_ptr) + dwp_file *dwp_file) { - struct dwp_file *dwp_file = (struct dwp_file *) dwp_file_ptr; const struct dwop_section_names *names = &dwop_section_names; unsigned int elf_section_nr = elf_section_data (sectp)->this_idx; @@ -13115,9 +13113,9 @@ open_and_init_dwp_file (dwarf2_per_objfile *per_objfile) OBSTACK_CALLOC (&per_objfile->per_bfd->obstack, dwp_file->num_sections, asection *); - bfd_map_over_sections (dwp_file->dbfd.get (), - dwarf2_locate_common_dwp_sections, - dwp_file.get ()); + for (asection *sec : gdb_bfd_sections (dwp_file->dbfd)) + dwarf2_locate_common_dwp_sections (dwp_file->dbfd.get (), sec, + dwp_file.get ()); dwp_file->cus = create_dwp_hash_table (per_objfile, dwp_file.get (), 0); @@ -13143,15 +13141,15 @@ open_and_init_dwp_file (dwarf2_per_objfile *per_objfile) else dwp_file->version = 2; - if (dwp_file->version == 2) - bfd_map_over_sections (dwp_file->dbfd.get (), - dwarf2_locate_v2_dwp_sections, - dwp_file.get ()); - else if (dwp_file->version == 5) - bfd_map_over_sections (dwp_file->dbfd.get (), - dwarf2_locate_v5_dwp_sections, - dwp_file.get ()); - + for (asection *sec : gdb_bfd_sections (dwp_file->dbfd)) + { + if (dwp_file->version == 2) + dwarf2_locate_v2_dwp_sections (dwp_file->dbfd.get (), sec, + dwp_file.get ()); + else + dwarf2_locate_v5_dwp_sections (dwp_file->dbfd.get (), sec, + dwp_file.get ()); + } dwp_file->loaded_cus = allocate_dwp_loaded_cutus_table (); dwp_file->loaded_tus = allocate_dwp_loaded_cutus_table (); -- 2.30.2