From 9816fde3d4a9966bea5b70950f3ac76f7382d525 Mon Sep 17 00:00:00 2001 From: Jan Kratochvil Date: Tue, 16 Nov 2010 04:36:26 +0000 Subject: [PATCH] gdb/ Code cleanup. * dwarf2read.c (alloc_one_comp_unit): Rename prototype to ... (init_one_comp_unit): ... this one. (prepare_one_comp_unit): New prototype. (dw2_require_line_header, process_psymtab_comp_unit): Use init_one_comp_unit. (process_psymtab_comp_unit): Use prepare_one_comp_unit. (load_partial_comp_unit): Remove variable attr. Use init_one_comp_unit with xmalloc. Use prepare_one_comp_unit. (load_full_comp_unit): Use init_one_comp_unit with xmalloc. Use prepare_one_comp_unit. (read_signatured_type): Remove variable attr. Use init_one_comp_unit. Use prepare_one_comp_unit. (alloc_one_comp_unit): Rename to ... (init_one_comp_unit): ... here and remove there calloc, new parameter cu. (prepare_one_comp_unit): New function. --- gdb/ChangeLog | 20 ++++++++++++ gdb/dwarf2read.c | 81 ++++++++++++++++++++++-------------------------- 2 files changed, 57 insertions(+), 44 deletions(-) diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 7669965e1e..c1ce36d2bd 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,23 @@ +2010-11-16 Jan Kratochvil + + Code cleanup. + * dwarf2read.c (alloc_one_comp_unit): Rename prototype to ... + (init_one_comp_unit): ... this one. + (prepare_one_comp_unit): New prototype. + (dw2_require_line_header, process_psymtab_comp_unit): Use + init_one_comp_unit. + (process_psymtab_comp_unit): Use prepare_one_comp_unit. + (load_partial_comp_unit): Remove variable attr. Use + init_one_comp_unit with xmalloc. Use prepare_one_comp_unit. + (load_full_comp_unit): Use init_one_comp_unit with xmalloc. Use + prepare_one_comp_unit. + (read_signatured_type): Remove variable attr. Use init_one_comp_unit. + Use prepare_one_comp_unit. + (alloc_one_comp_unit): Rename to ... + (init_one_comp_unit): ... here and remove there calloc, new parameter + cu. + (prepare_one_comp_unit): New function. + 2010-11-14 Pierre Muller * arm-tdep.c (arm_in_function_epilogue_p): Fix code to avoid diff --git a/gdb/dwarf2read.c b/gdb/dwarf2read.c index 404faf89e6..3049e34eb9 100644 --- a/gdb/dwarf2read.c +++ b/gdb/dwarf2read.c @@ -1241,7 +1241,11 @@ static struct dwarf2_per_cu_data *dwarf2_find_containing_comp_unit static struct dwarf2_per_cu_data *dwarf2_find_comp_unit (unsigned int offset, struct objfile *objfile); -static struct dwarf2_cu *alloc_one_comp_unit (struct objfile *objfile); +static void init_one_comp_unit (struct dwarf2_cu *cu, + struct objfile *objfile); + +static void prepare_one_comp_unit (struct dwarf2_cu *cu, + struct die_info *comp_unit_die); static void free_one_comp_unit (void *); @@ -2018,10 +2022,7 @@ dw2_require_line_header (struct objfile *objfile, return; this_cu->v.quick->read_lines = 1; - memset (&cu, 0, sizeof (cu)); - cu.objfile = objfile; - obstack_init (&cu.comp_unit_obstack); - + init_one_comp_unit (&cu, objfile); cleanups = make_cleanup (free_stack_comp_unit, &cu); if (this_cu->from_debug_types) @@ -3024,10 +3025,7 @@ process_psymtab_comp_unit (struct objfile *objfile, CORE_ADDR best_lowpc = 0, best_highpc = 0; struct die_reader_specs reader_specs; - memset (&cu, 0, sizeof (cu)); - cu.objfile = objfile; - obstack_init (&cu.comp_unit_obstack); - + init_one_comp_unit (&cu, objfile); back_to_inner = make_cleanup (free_stack_comp_unit, &cu); info_ptr = partial_read_comp_unit_head (&cu.header, info_ptr, @@ -3081,12 +3079,7 @@ process_psymtab_comp_unit (struct objfile *objfile, return info_ptr; } - /* Set the language we're debugging. */ - attr = dwarf2_attr (comp_unit_die, DW_AT_language, &cu); - if (attr) - set_cu_language (DW_UNSND (attr), &cu); - else - set_cu_language (language_minimal, &cu); + prepare_one_comp_unit (&cu, comp_unit_die); /* Allocate a new partial symbol table structure. */ attr = dwarf2_attr (comp_unit_die, DW_AT_name, &cu); @@ -3301,7 +3294,6 @@ load_partial_comp_unit (struct dwarf2_per_cu_data *this_cu, struct die_info *comp_unit_die; struct dwarf2_cu *cu; struct cleanup *free_abbrevs_cleanup, *free_cu_cleanup = NULL; - struct attribute *attr; int has_children; struct die_reader_specs reader_specs; int read_cu = 0; @@ -3314,7 +3306,8 @@ load_partial_comp_unit (struct dwarf2_per_cu_data *this_cu, if (this_cu->cu == NULL) { - cu = alloc_one_comp_unit (objfile); + cu = xmalloc (sizeof (*cu)); + init_one_comp_unit (cu, objfile); read_cu = 1; @@ -3354,12 +3347,7 @@ load_partial_comp_unit (struct dwarf2_per_cu_data *this_cu, info_ptr = read_full_die (&reader_specs, &comp_unit_die, info_ptr, &has_children); - /* Set the language we're debugging. */ - attr = dwarf2_attr (comp_unit_die, DW_AT_language, cu); - if (attr) - set_cu_language (DW_UNSND (attr), cu); - else - set_cu_language (language_minimal, cu); + prepare_one_comp_unit (cu, comp_unit_die); /* Check if comp unit has_children. If so, read the rest of the partial symbols from this comp unit. @@ -4314,7 +4302,8 @@ load_full_comp_unit (struct dwarf2_per_cu_data *per_cu, struct objfile *objfile) if (per_cu->cu == NULL) { - cu = alloc_one_comp_unit (objfile); + cu = xmalloc (sizeof (*cu)); + init_one_comp_unit (cu, objfile); read_cu = 1; @@ -4352,11 +4341,7 @@ load_full_comp_unit (struct dwarf2_per_cu_data *per_cu, struct objfile *objfile) all objfiles needed for references have been loaded yet, and symbol table processing isn't initialized. But we have to set the CU language, or we won't be able to build types correctly. */ - attr = dwarf2_attr (cu->dies, DW_AT_language, cu); - if (attr) - set_cu_language (DW_UNSND (attr), cu); - else - set_cu_language (language_minimal, cu); + prepare_one_comp_unit (cu, cu->dies); /* Similarly, if we do not read the producer, we can not apply producer-specific interpretation. */ @@ -13220,17 +13205,15 @@ read_signatured_type (struct objfile *objfile, struct dwarf2_cu *cu; ULONGEST signature; struct cleanup *back_to, *free_cu_cleanup; - struct attribute *attr; dwarf2_read_section (objfile, &dwarf2_per_objfile->types); types_ptr = dwarf2_per_objfile->types.buffer + type_sig->offset; gdb_assert (type_sig->per_cu.cu == NULL); - cu = xmalloc (sizeof (struct dwarf2_cu)); - memset (cu, 0, sizeof (struct dwarf2_cu)); - obstack_init (&cu->comp_unit_obstack); - cu->objfile = objfile; + cu = xmalloc (sizeof (*cu)); + init_one_comp_unit (cu, objfile); + type_sig->per_cu.cu = cu; cu->per_cu = &type_sig->per_cu; @@ -13262,11 +13245,7 @@ read_signatured_type (struct objfile *objfile, all objfiles needed for references have been loaded yet, and symbol table processing isn't initialized. But we have to set the CU language, or we won't be able to build types correctly. */ - attr = dwarf2_attr (cu->dies, DW_AT_language, cu); - if (attr) - set_cu_language (DW_UNSND (attr), cu); - else - set_cu_language (language_minimal, cu); + prepare_one_comp_unit (cu, cu->dies); do_cleanups (back_to); @@ -14314,15 +14293,29 @@ dwarf2_find_comp_unit (unsigned int offset, struct objfile *objfile) return this_cu; } -/* Malloc space for a dwarf2_cu for OBJFILE and initialize it. */ +/* Initialize dwarf2_cu CU for OBJFILE in a pre-allocated space. */ -static struct dwarf2_cu * -alloc_one_comp_unit (struct objfile *objfile) +static void +init_one_comp_unit (struct dwarf2_cu *cu, struct objfile *objfile) { - struct dwarf2_cu *cu = xcalloc (1, sizeof (struct dwarf2_cu)); + memset (cu, 0, sizeof (*cu)); cu->objfile = objfile; obstack_init (&cu->comp_unit_obstack); - return cu; +} + +/* Initialize basic fields of dwarf_cu CU according to DIE COMP_UNIT_DIE. */ + +static void +prepare_one_comp_unit (struct dwarf2_cu *cu, struct die_info *comp_unit_die) +{ + struct attribute *attr; + + /* Set the language we're debugging. */ + attr = dwarf2_attr (comp_unit_die, DW_AT_language, cu); + if (attr) + set_cu_language (DW_UNSND (attr), cu); + else + set_cu_language (language_minimal, cu); } /* Release one cached compilation unit, CU. We unlink it from the tree