ff908ebf86
Variables with a DW_AT_const_value but without a DW_AT_location were not getting added to the partial symbol table. They are added to the full symbol table, however, when the compilation unit's psymtabs are expanded. Before: (gdb) p one No symbol "one" in current context. (gdb) mt flush-symbol-cache (gdb) mt expand one.c (gdb) p one $1 = 1 After: (gdb) p one $1 = 1 To the user it's pretty strange, as depending on whether tab completion has forced expansion of all CUs or not the lookup might succeed, or not if the failure was already added to the symbol cache. This commit simply makes sure to add constants to the partial symbol tables. gdb/testsuite/ChangeLog: PR symtab/18148 * gdb.dwarf2/dw2-intercu.S (one, two): Add variables that have a const_value but not a location. * gdb.dwarf2/dw2-intercu.exp: Add tests that constants without location defined in non-main CUs are visible. gdb/ChangeLog: PR symtab/18148 * dwarf2read.c (struct partial_die_info): Add has_const_value member. (add_partial_symbol): Don't punt on symbols that have const_value attributes. (read_partial_die): Detect DW_AT_const_value.
316 lines
8.9 KiB
ArmAsm
316 lines
8.9 KiB
ArmAsm
/* This testcase is part of GDB, the GNU debugger.
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Copyright 2004-2015 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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/* Test a minimal file containing DWARF-2 information. This test also
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serves as a skeleton for other DWARF-2 tests. Most other tests will
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not be this extensively itemized and commented... */
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/* Dummy function to provide debug information for. */
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.text
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.Lbegin_text1:
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.globl func_cu1
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.type func_cu1, %function
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func_cu1:
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.Lbegin_func_cu1:
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.int 0
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.Lend_func_cu1:
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.size func_cu1, .-func_cu1
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.Lend_text1:
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/* Debug information */
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.section .debug_info
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.Lcu1_begin:
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/* CU header */
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.4byte .Lcu1_end - .Lcu1_start /* Length of Compilation Unit */
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.Lcu1_start:
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.2byte 2 /* DWARF Version */
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.4byte .Labbrev1_begin /* Offset into abbrev section */
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.byte 4 /* Pointer size */
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/* CU die */
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.uleb128 1 /* Abbrev: DW_TAG_compile_unit */
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.4byte .Lline1_begin /* DW_AT_stmt_list */
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.4byte .Lend_text1 /* DW_AT_high_pc */
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.4byte .Lbegin_text1 /* DW_AT_low_pc */
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.ascii "file1.txt\0" /* DW_AT_name */
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.ascii "GNU C 3.3.3\0" /* DW_AT_producer */
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.byte 1 /* DW_AT_language (C) */
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/* func_cu1 */
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.uleb128 2 /* Abbrev: DW_TAG_subprogram */
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.byte 1 /* DW_AT_external */
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.byte 1 /* DW_AT_decl_file */
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.byte 2 /* DW_AT_decl_line */
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.ascii "func_cu1\0" /* DW_AT_name */
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.4byte .Ltype_int2_in_cu2 /* DW_AT_type */
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.4byte .Lbegin_func_cu1 /* DW_AT_low_pc */
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.4byte .Lend_func_cu1 /* DW_AT_high_pc */
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.byte 1 /* DW_AT_frame_base: length */
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.byte 0x55 /* DW_AT_frame_base: DW_OP_reg5 */
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/* This type is named "int1" and not "int" to ensure it is unique,
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and thus we can easily ensure we expand this CU and not some
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other CU with "int". */
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.Ltype_int1_in_cu1:
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.uleb128 3 /* Abbrev: DW_TAG_base_type */
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.ascii "int1\0" /* DW_AT_name */
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.byte 4 /* DW_AT_byte_size */
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.byte 5 /* DW_AT_encoding */
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.Ltype_const_int1_in_cu1:
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.uleb128 4 /* Abbrev: DW_TAG_const_type */
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.4byte .Ltype_int1_in_cu1-.Lcu1_begin /* DW_AT_type */
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.uleb128 5 /* Abbrev: DW_TAG_variable */
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.ascii "one\0" /* DW_AT_name */
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.4byte .Ltype_const_int1_in_cu1-.Lcu1_begin /* DW_AT_type */
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.byte 1 /* DW_AT_const_value */
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.byte 0 /* End of children of CU */
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.Lcu1_end:
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/* Second compilation unit. */
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.Lcu2_begin:
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/* CU header */
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.4byte .Lcu2_end - .Lcu2_start /* Length of Compilation Unit */
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.Lcu2_start:
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.2byte 2 /* DWARF Version */
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.4byte .Labbrev2_begin /* Offset into abbrev section */
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.byte 4 /* Pointer size */
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/* CU die */
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.uleb128 1 /* Abbrev: DW_TAG_compile_unit */
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.ascii "file1.txt\0" /* DW_AT_name */
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.ascii "GNU C 3.3.3\0" /* DW_AT_producer */
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.byte 1 /* DW_AT_language (C) */
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/* This type is named "int2" and not "int" to ensure it is unique,
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and thus we can easily ensure we expand this CU and not some
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other CU with "int". */
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.Ltype_int2_in_cu2:
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.uleb128 2 /* Abbrev: DW_TAG_base_type */
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.ascii "int2\0" /* DW_AT_name */
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.byte 4 /* DW_AT_byte_size */
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.byte 5 /* DW_AT_encoding */
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.Ltype_const_int2_in_cu2:
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.uleb128 3 /* Abbrev: DW_TAG_const_type */
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.4byte .Ltype_int2_in_cu2-.Lcu2_begin /* DW_AT_type */
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.uleb128 4 /* Abbrev: DW_TAG_variable */
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.ascii "two\0" /* DW_AT_name */
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.4byte .Ltype_const_int2_in_cu2-.Lcu2_begin /* DW_AT_type */
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.byte 2 /* DW_AT_const_value */
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.byte 0 /* End of children of CU */
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.Lcu2_end:
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/* Abbrev table */
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.section .debug_abbrev
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.Labbrev1_begin:
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.uleb128 1 /* Abbrev code */
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.uleb128 0x11 /* DW_TAG_compile_unit */
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.byte 1 /* has_children */
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.uleb128 0x10 /* DW_AT_stmt_list */
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.uleb128 0x6 /* DW_FORM_data4 */
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.uleb128 0x12 /* DW_AT_high_pc */
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.uleb128 0x1 /* DW_FORM_addr */
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.uleb128 0x11 /* DW_AT_low_pc */
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.uleb128 0x1 /* DW_FORM_addr */
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.uleb128 0x3 /* DW_AT_name */
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.uleb128 0x8 /* DW_FORM_string */
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.uleb128 0x25 /* DW_AT_producer */
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.uleb128 0x8 /* DW_FORM_string */
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.uleb128 0x13 /* DW_AT_language */
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.uleb128 0xb /* DW_FORM_data1 */
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.byte 0x0 /* Terminator */
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.byte 0x0 /* Terminator */
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.uleb128 2 /* Abbrev code */
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.uleb128 0x2e /* DW_TAG_subprogram */
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.byte 0 /* has_children */
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.uleb128 0x3f /* DW_AT_external */
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.uleb128 0xc /* DW_FORM_flag */
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.uleb128 0x3a /* DW_AT_decl_file */
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.uleb128 0xb /* DW_FORM_data1 */
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.uleb128 0x3b /* DW_AT_decl_line */
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.uleb128 0xb /* DW_FORM_data1 */
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.uleb128 0x3 /* DW_AT_name */
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.uleb128 0x8 /* DW_FORM_string */
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.uleb128 0x49 /* DW_AT_type */
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.uleb128 0x10 /* DW_FORM_ref_addr */
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.uleb128 0x11 /* DW_AT_low_pc */
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.uleb128 0x1 /* DW_FORM_addr */
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.uleb128 0x12 /* DW_AT_high_pc */
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.uleb128 0x1 /* DW_FORM_addr */
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.uleb128 0x40 /* DW_AT_frame_base */
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.uleb128 0xa /* DW_FORM_block1 */
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.byte 0x0 /* Terminator */
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.byte 0x0 /* Terminator */
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.uleb128 3 /* Abbrev code */
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.uleb128 0x24 /* DW_TAG_base_type */
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.byte 0 /* has_children */
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.uleb128 0x3 /* DW_AT_name */
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.uleb128 0x8 /* DW_FORM_string */
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.uleb128 0xb /* DW_AT_byte_size */
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.uleb128 0xb /* DW_FORM_data1 */
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.uleb128 0x3e /* DW_AT_encoding */
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.uleb128 0xb /* DW_FORM_data1 */
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.byte 0x0 /* Terminator */
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.byte 0x0 /* Terminator */
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.uleb128 4 /* Abbrev code */
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.uleb128 0x26 /* DW_TAG_const_type */
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.byte 0x0 /* DW_children_no */
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.uleb128 0x49 /* DW_AT_type */
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.uleb128 0x13 /* DW_FORM_ref4 */
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.byte 0x0 /* Terminator */
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.byte 0x0 /* Terminator */
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.uleb128 5 /* Abbrev code */
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.uleb128 0x34 /* DW_TAG_variable */
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.byte 0x0 /* DW_children_no */
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.uleb128 0x3 /* DW_AT_name */
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.uleb128 0x8 /* DW_FORM_string */
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.uleb128 0x49 /* DW_AT_type */
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.uleb128 0x13 /* DW_FORM_ref4 */
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.uleb128 0x1c /* DW_AT_const_value */
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.uleb128 0xb /* DW_FORM_data1 */
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.byte 0x0 /* Terminator */
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.byte 0x0 /* Terminator */
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.byte 0x0 /* Terminator */
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.byte 0x0 /* Terminator */
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.Labbrev2_begin:
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.uleb128 1 /* Abbrev code */
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.uleb128 0x11 /* DW_TAG_compile_unit */
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.byte 1 /* has_children */
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.uleb128 0x3 /* DW_AT_name */
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.uleb128 0x8 /* DW_FORM_string */
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.uleb128 0x25 /* DW_AT_producer */
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.uleb128 0x8 /* DW_FORM_string */
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.uleb128 0x13 /* DW_AT_language */
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.uleb128 0xb /* DW_FORM_data1 */
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.byte 0x0 /* Terminator */
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.byte 0x0 /* Terminator */
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.uleb128 2 /* Abbrev code */
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.uleb128 0x24 /* DW_TAG_base_type */
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.byte 0 /* has_children */
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.uleb128 0x3 /* DW_AT_name */
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.uleb128 0x8 /* DW_FORM_string */
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.uleb128 0xb /* DW_AT_byte_size */
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.uleb128 0xb /* DW_FORM_data1 */
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.uleb128 0x3e /* DW_AT_encoding */
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.uleb128 0xb /* DW_FORM_data1 */
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.byte 0x0 /* Terminator */
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.byte 0x0 /* Terminator */
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.uleb128 3 /* Abbrev code */
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.uleb128 0x26 /* DW_TAG_const_type */
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.byte 0x0 /* DW_children_no */
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.uleb128 0x49 /* DW_AT_type */
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.uleb128 0x13 /* DW_FORM_ref4 */
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.byte 0x0 /* Terminator */
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.byte 0x0 /* Terminator */
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.uleb128 4 /* Abbrev code */
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.uleb128 0x34 /* DW_TAG_variable */
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.byte 0x0 /* DW_children_no */
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.uleb128 0x3 /* DW_AT_name */
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.uleb128 0x8 /* DW_FORM_string */
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.uleb128 0x49 /* DW_AT_type */
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.uleb128 0x13 /* DW_FORM_ref4 */
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.uleb128 0x1c /* DW_AT_const_value */
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.uleb128 0xb /* DW_FORM_data1 */
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.byte 0x0 /* Terminator */
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.byte 0x0 /* Terminator */
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.byte 0x0 /* Terminator */
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.byte 0x0 /* Terminator */
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/* Line table */
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.section .debug_line
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.Lline1_begin:
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.4byte .Lline1_end - .Lline1_start /* Initial length */
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.Lline1_start:
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.2byte 2 /* Version */
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.4byte .Lline1_lines - .Lline1_hdr /* header_length */
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.Lline1_hdr:
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.byte 1 /* Minimum insn length */
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.byte 1 /* default_is_stmt */
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.byte 1 /* line_base */
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.byte 1 /* line_range */
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.byte 0x10 /* opcode_base */
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/* Standard lengths */
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.byte 0
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.byte 1
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.byte 1
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.byte 1
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.byte 1
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.byte 0
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.byte 0
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.byte 0
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.byte 1
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.byte 0
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.byte 0
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.byte 1
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.byte 0
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.byte 0
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.byte 0
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/* Include directories */
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.byte 0
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/* File names */
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.ascii "file1.txt\0"
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.uleb128 0
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.uleb128 0
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.uleb128 0
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.byte 0
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.Lline1_lines:
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.byte 0 /* DW_LNE_set_address */
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.uleb128 5
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.byte 2
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.4byte .Lbegin_func_cu1
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.byte 3 /* DW_LNS_advance_line */
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.sleb128 3 /* ... to 4 */
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.byte 1 /* DW_LNS_copy */
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.byte 1 /* DW_LNS_copy (second time as an end-of-prologue marker) */
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.byte 0 /* DW_LNE_set_address */
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.uleb128 5
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.byte 2
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.4byte .Lend_func_cu1
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.byte 0 /* DW_LNE_end_of_sequence */
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.uleb128 1
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.byte 1
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.Lline1_end:
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