From 9aa1f1e33995b48c94b8d6833d071751aa02f751 Mon Sep 17 00:00:00 2001 From: Tom Tromey Date: Tue, 13 Jul 2010 15:09:03 +0000 Subject: [PATCH] * dwarf2loc.h (dwarf2_per_cu_text_offset): Declare. * dwarf2loc.c (find_location_expression): Use dwarf2_per_cu_text_offset. (dwarf2_evaluate_loc_desc): Likewise. (dwarf2_loc_desc_needs_frame): Likewise. (compile_dwarf_to_ax): Likewise. (loclist_describe_location): Likewise. * dwarf2read.c (dwarf2_per_cu_text_offset): New function. (dwarf2_per_cu_objfile): Update comment. --- gdb/ChangeLog | 12 ++++++++++++ gdb/dwarf2loc.c | 17 +++++------------ gdb/dwarf2loc.h | 10 +++++++++- gdb/dwarf2read.c | 17 ++++++++++++++++- 4 files changed, 42 insertions(+), 14 deletions(-) diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 9ebaaf9..44f606f 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,15 @@ +2010-07-13 Tom Tromey + + * dwarf2loc.h (dwarf2_per_cu_text_offset): Declare. + * dwarf2loc.c (find_location_expression): Use + dwarf2_per_cu_text_offset. + (dwarf2_evaluate_loc_desc): Likewise. + (dwarf2_loc_desc_needs_frame): Likewise. + (compile_dwarf_to_ax): Likewise. + (loclist_describe_location): Likewise. + * dwarf2read.c (dwarf2_per_cu_text_offset): New function. + (dwarf2_per_cu_objfile): Update comment. + 2010-07-12 Jan Kratochvil * dwarf2read.c (read_subrange_type): Call read_subrange_type. diff --git a/gdb/dwarf2loc.c b/gdb/dwarf2loc.c index 4106b7f..2a8e557 100644 --- a/gdb/dwarf2loc.c +++ b/gdb/dwarf2loc.c @@ -70,8 +70,7 @@ find_location_expression (struct dwarf2_loclist_baton *baton, int signed_addr_p = bfd_get_sign_extend_vma (objfile->obfd); CORE_ADDR base_mask = ~(~(CORE_ADDR)1 << (addr_size * 8 - 1)); /* Adjust base_address for relocatable objects. */ - CORE_ADDR base_offset = ANOFFSET (objfile->section_offsets, - SECT_OFF_TEXT (objfile)); + CORE_ADDR base_offset = dwarf2_per_cu_text_offset (baton->per_cu); CORE_ADDR base_address = baton->base_address + base_offset; loc_ptr = baton->data; @@ -909,7 +908,7 @@ dwarf2_evaluate_loc_desc (struct type *type, struct frame_info *frame, ctx->gdbarch = get_objfile_arch (objfile); ctx->addr_size = dwarf2_per_cu_addr_size (per_cu); - ctx->offset = ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile)); + ctx->offset = dwarf2_per_cu_text_offset (per_cu); ctx->baton = &baton; ctx->read_reg = dwarf_expr_read_reg; ctx->read_mem = dwarf_expr_read_mem; @@ -1095,7 +1094,7 @@ dwarf2_loc_desc_needs_frame (const gdb_byte *data, unsigned short size, ctx->gdbarch = get_objfile_arch (objfile); ctx->addr_size = dwarf2_per_cu_addr_size (per_cu); - ctx->offset = ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile)); + ctx->offset = dwarf2_per_cu_text_offset (per_cu); ctx->baton = &baton; ctx->read_reg = needs_frame_read_reg; ctx->read_mem = needs_frame_read_mem; @@ -1304,12 +1303,7 @@ compile_dwarf_to_ax (struct agent_expr *expr, struct axs_value *loc, index, not an address. We don't support things like branching between the address and the TLS op. */ if (op_ptr >= op_end || *op_ptr != DW_OP_GNU_push_tls_address) - { - struct objfile *objfile = dwarf2_per_cu_objfile (per_cu); - - uoffset += ANOFFSET (objfile->section_offsets, - SECT_OFF_TEXT (objfile)); - } + uoffset += dwarf2_per_cu_text_offset (per_cu); ax_const_l (expr, uoffset); break; @@ -2511,8 +2505,7 @@ loclist_describe_location (struct symbol *symbol, CORE_ADDR addr, int signed_addr_p = bfd_get_sign_extend_vma (objfile->obfd); CORE_ADDR base_mask = ~(~(CORE_ADDR)1 << (addr_size * 8 - 1)); /* Adjust base_address for relocatable objects. */ - CORE_ADDR base_offset = ANOFFSET (objfile->section_offsets, - SECT_OFF_TEXT (objfile)); + CORE_ADDR base_offset = dwarf2_per_cu_text_offset (dlbaton->per_cu); CORE_ADDR base_address = dlbaton->base_address + base_offset; loc_ptr = dlbaton->data; diff --git a/gdb/dwarf2loc.h b/gdb/dwarf2loc.h index 3ff595e..826bc45 100644 --- a/gdb/dwarf2loc.h +++ b/gdb/dwarf2loc.h @@ -28,7 +28,9 @@ struct dwarf2_per_cu_data; /* This header is private to the DWARF-2 reader. It is shared between dwarf2read.c and dwarf2loc.c. */ -/* Return the OBJFILE associated with the compilation unit CU. */ +/* Return the OBJFILE associated with the compilation unit CU. If CU + came from a separate debuginfo file, then the master objfile is + returned. */ struct objfile *dwarf2_per_cu_objfile (struct dwarf2_per_cu_data *cu); /* Return the address size given in the compilation unit header for CU. */ @@ -37,6 +39,12 @@ CORE_ADDR dwarf2_per_cu_addr_size (struct dwarf2_per_cu_data *cu); /* Return the offset size given in the compilation unit header for CU. */ int dwarf2_per_cu_offset_size (struct dwarf2_per_cu_data *cu); +/* Return the text offset of the CU. The returned offset comes from + this CU's objfile. If this objfile came from a separate debuginfo + file, then the offset may be different from the corresponding + offset in the parent objfile. */ +CORE_ADDR dwarf2_per_cu_text_offset (struct dwarf2_per_cu_data *cu); + struct dwarf2_locexpr_baton dwarf2_fetch_die_location_block (unsigned int offset, struct dwarf2_per_cu_data *per_cu); diff --git a/gdb/dwarf2read.c b/gdb/dwarf2read.c index d128312..240bee1 100644 --- a/gdb/dwarf2read.c +++ b/gdb/dwarf2read.c @@ -12049,7 +12049,9 @@ dwarf2_symbol_mark_computed (struct attribute *attr, struct symbol *sym, } } -/* Return the OBJFILE associated with the compilation unit CU. */ +/* Return the OBJFILE associated with the compilation unit CU. If CU + came from a separate debuginfo file, then the master objfile is + returned. */ struct objfile * dwarf2_per_cu_objfile (struct dwarf2_per_cu_data *per_cu) @@ -12108,6 +12110,19 @@ dwarf2_per_cu_offset_size (struct dwarf2_per_cu_data *per_cu) } } +/* Return the text offset of the CU. The returned offset comes from + this CU's objfile. If this objfile came from a separate debuginfo + file, then the offset may be different from the corresponding + offset in the parent objfile. */ + +CORE_ADDR +dwarf2_per_cu_text_offset (struct dwarf2_per_cu_data *per_cu) +{ + struct objfile *objfile = per_cu->psymtab->objfile; + + return ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile)); +} + /* Locate the .debug_info compilation unit from CU's objfile which contains the DIE at OFFSET. Raises an error on failure. */ -- 2.7.4