From 120ce1b5b255226227e5e36342b2e3764c2a80aa Mon Sep 17 00:00:00 2001 From: Simon Marchi Date: Wed, 27 May 2020 11:14:04 -0400 Subject: [PATCH] Add dwarf2_per_objfile parameter to free_one_cached_comp_unit This allows removing some references to dwarf2_per_cu_data::dwarf2_per_objfile. gdb/ChangeLog: * dwarf2/read.h (struct dwarf2_queue_item): Add dwarf2_per_objfile parameter, assign new parameter. : New field. * dwarf2/read.c (free_one_cached_comp_unit): Add dwarf2_per_objfile parameter. (queue_comp_unit): Likewise. (dw2_do_instantiate_symtab): Update. (process_psymtab_comp_unit): Update. (maybe_queue_comp_unit): Add dwarf2_per_objfile parameter. (process_imported_unit_die): Update. (queue_and_load_dwo_tu): Update. (follow_die_offset): Update. (follow_die_sig_1): Update. Change-Id: Ibb4a4ea28eeac5ebcbf73c0d2a13f9391e15c235 --- gdb/ChangeLog | 16 ++++++++++++++++ gdb/dwarf2/read.c | 42 +++++++++++++++++++++++------------------- gdb/dwarf2/read.h | 7 +++++-- 3 files changed, 44 insertions(+), 21 deletions(-) diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 865ce0979da..56745dd66c2 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,19 @@ +2020-05-27 Simon Marchi + + * dwarf2/read.h (struct dwarf2_queue_item): Add + dwarf2_per_objfile parameter, assign new parameter. + : New field. + * dwarf2/read.c (free_one_cached_comp_unit): Add + dwarf2_per_objfile parameter. + (queue_comp_unit): Likewise. + (dw2_do_instantiate_symtab): Update. + (process_psymtab_comp_unit): Update. + (maybe_queue_comp_unit): Add dwarf2_per_objfile parameter. + (process_imported_unit_die): Update. + (queue_and_load_dwo_tu): Update. + (follow_die_offset): Update. + (follow_die_sig_1): Update. + 2020-05-27 Simon Marchi * dwarf2/read.h (struct dwarf2_per_cu_data) : Remove. diff --git a/gdb/dwarf2/read.c b/gdb/dwarf2/read.c index 8d71cb41122..433d90e42fc 100644 --- a/gdb/dwarf2/read.c +++ b/gdb/dwarf2/read.c @@ -1568,7 +1568,8 @@ static void prepare_one_comp_unit (struct dwarf2_cu *cu, static void age_cached_comp_units (struct dwarf2_per_objfile *dwarf2_per_objfile); -static void free_one_cached_comp_unit (struct dwarf2_per_cu_data *); +static void free_one_cached_comp_unit (dwarf2_per_cu_data *target_per_cu, + dwarf2_per_objfile *per_objfile); static struct type *set_die_type (struct die_info *, struct type *, struct dwarf2_cu *); @@ -1602,7 +1603,8 @@ static struct type *get_die_type_at_offset (sect_offset, static struct type *get_die_type (struct die_info *die, struct dwarf2_cu *cu); -static void queue_comp_unit (struct dwarf2_per_cu_data *per_cu, +static void queue_comp_unit (dwarf2_per_cu_data *per_cu, + dwarf2_per_objfile *per_objfile, enum language pretend_language); static void process_queue (struct dwarf2_per_objfile *dwarf2_per_objfile); @@ -1642,7 +1644,7 @@ dwarf2_queue_item::~dwarf2_queue_item () if (per_cu->queued) { if (per_cu->cu != NULL) - free_one_cached_comp_unit (per_cu); + free_one_cached_comp_unit (per_cu, per_objfile); per_cu->queued = 0; } } @@ -2381,7 +2383,7 @@ dw2_do_instantiate_symtab (dwarf2_per_cu_data *per_cu, if (!dwarf2_per_objfile->symtab_set_p (per_cu)) { - queue_comp_unit (per_cu, language_minimal); + queue_comp_unit (per_cu, dwarf2_per_objfile, language_minimal); load_cu (per_cu, dwarf2_per_objfile, skip_partial); /* If we just loaded a CU from a DWO, and we're working with an index @@ -7579,7 +7581,7 @@ process_psymtab_comp_unit (dwarf2_per_cu_data *this_cu, read in the compilation unit (see load_partial_dies). This problem could be avoided, but the benefit is unclear. */ if (this_cu->cu != NULL) - free_one_cached_comp_unit (this_cu); + free_one_cached_comp_unit (this_cu, per_objfile); cutu_reader reader (this_cu, per_objfile, NULL, 0, false); @@ -8937,11 +8939,12 @@ dwarf2_psymtab::read_symtab (struct objfile *objfile) /* Add PER_CU to the queue. */ static void -queue_comp_unit (struct dwarf2_per_cu_data *per_cu, +queue_comp_unit (dwarf2_per_cu_data *per_cu, + dwarf2_per_objfile *per_objfile, enum language pretend_language) { per_cu->queued = 1; - per_cu->per_bfd->queue.emplace (per_cu, pretend_language); + per_cu->per_bfd->queue.emplace (per_cu, per_objfile, pretend_language); } /* If PER_CU is not yet queued, add it to the queue. @@ -8955,7 +8958,8 @@ queue_comp_unit (struct dwarf2_per_cu_data *per_cu, static int maybe_queue_comp_unit (struct dwarf2_cu *dependent_cu, - struct dwarf2_per_cu_data *per_cu, + dwarf2_per_cu_data *per_cu, + dwarf2_per_objfile *per_objfile, enum language pretend_language) { /* We may arrive here during partial symbol reading, if we need full @@ -8986,7 +8990,7 @@ maybe_queue_comp_unit (struct dwarf2_cu *dependent_cu, } /* Add it to the queue. */ - queue_comp_unit (per_cu, pretend_language); + queue_comp_unit (per_cu, per_objfile, pretend_language); return 1; } @@ -9947,7 +9951,7 @@ process_imported_unit_die (struct die_info *die, struct dwarf2_cu *cu) return; /* If necessary, add it to the queue and load its DIEs. */ - if (maybe_queue_comp_unit (cu, per_cu, cu->language)) + if (maybe_queue_comp_unit (cu, per_cu, per_objfile, cu->language)) load_full_comp_unit (per_cu, per_objfile, false, cu->language); cu->per_cu->imported_symtabs_push (per_cu); @@ -12861,7 +12865,7 @@ queue_and_load_dwo_tu (void **slot, void *info) /* We pass NULL for DEPENDENT_CU because we don't yet know if there's a real dependency of PER_CU on SIG_TYPE. That is detected later while processing PER_CU. */ - if (maybe_queue_comp_unit (NULL, sig_cu, cu->language)) + if (maybe_queue_comp_unit (NULL, sig_cu, cu->per_objfile, cu->language)) load_full_type_unit (sig_cu, cu->per_objfile); cu->per_cu->imported_symtabs_push (sig_cu); } @@ -22247,7 +22251,7 @@ follow_die_offset (sect_offset sect_off, int offset_in_dwz, dwarf2_per_objfile); /* If necessary, add it to the queue and load its DIEs. */ - if (maybe_queue_comp_unit (cu, per_cu, cu->language)) + if (maybe_queue_comp_unit (cu, per_cu, dwarf2_per_objfile, cu->language)) load_full_comp_unit (per_cu, dwarf2_per_objfile, false, cu->language); target_cu = per_cu->cu; @@ -22610,6 +22614,8 @@ follow_die_sig_1 (struct die_info *src_die, struct signatured_type *sig_type, struct die_info temp_die; struct dwarf2_cu *sig_cu, *cu = *ref_cu; struct die_info *die; + dwarf2_per_objfile *dwarf2_per_objfile = (*ref_cu)->per_objfile; + /* While it might be nice to assert sig_type->type == NULL here, we can get here for DW_AT_imported_declaration where we need @@ -22617,8 +22623,9 @@ follow_die_sig_1 (struct die_info *src_die, struct signatured_type *sig_type, /* If necessary, add it to the queue and load its DIEs. */ - if (maybe_queue_comp_unit (*ref_cu, &sig_type->per_cu, language_minimal)) - read_signatured_type (sig_type, (*ref_cu)->per_objfile); + if (maybe_queue_comp_unit (*ref_cu, &sig_type->per_cu, dwarf2_per_objfile, + language_minimal)) + read_signatured_type (sig_type, dwarf2_per_objfile); sig_cu = sig_type->per_cu.cu; gdb_assert (sig_cu != NULL); @@ -22628,8 +22635,6 @@ follow_die_sig_1 (struct die_info *src_die, struct signatured_type *sig_type, to_underlying (temp_die.sect_off)); if (die) { - struct dwarf2_per_objfile *dwarf2_per_objfile = (*ref_cu)->per_objfile; - /* For .gdb_index version 7 keep track of included TUs. http://sourceware.org/bugzilla/show_bug.cgi?id=15021. */ if (dwarf2_per_objfile->per_bfd->index_table != NULL @@ -23607,11 +23612,10 @@ age_cached_comp_units (struct dwarf2_per_objfile *dwarf2_per_objfile) /* Remove a single compilation unit from the cache. */ static void -free_one_cached_comp_unit (struct dwarf2_per_cu_data *target_per_cu) +free_one_cached_comp_unit (dwarf2_per_cu_data *target_per_cu, + dwarf2_per_objfile *dwarf2_per_objfile) { struct dwarf2_per_cu_data *per_cu, **last_chain; - struct dwarf2_per_objfile *dwarf2_per_objfile - = target_per_cu->dwarf2_per_objfile; per_cu = dwarf2_per_objfile->per_bfd->read_in_chain; last_chain = &dwarf2_per_objfile->per_bfd->read_in_chain; diff --git a/gdb/dwarf2/read.h b/gdb/dwarf2/read.h index dda5ed71c4d..3dada4852d7 100644 --- a/gdb/dwarf2/read.h +++ b/gdb/dwarf2/read.h @@ -52,8 +52,10 @@ struct signatured_type; for. */ struct dwarf2_queue_item { - dwarf2_queue_item (dwarf2_per_cu_data *cu, enum language lang) + dwarf2_queue_item (dwarf2_per_cu_data *cu, dwarf2_per_objfile *per_objfile, + enum language lang) : per_cu (cu), + per_objfile (per_objfile), pretend_language (lang) { } @@ -62,7 +64,8 @@ struct dwarf2_queue_item DISABLE_COPY_AND_ASSIGN (dwarf2_queue_item); - struct dwarf2_per_cu_data *per_cu; + dwarf2_per_cu_data *per_cu; + dwarf2_per_objfile *per_objfile; enum language pretend_language; }; -- 2.39.2