8be455d765
PR 12573 * dwarf2read.c (struct dwarf2_cu): New field has_loclist. (producer_is_gcc_ge_4_0): New function. (process_full_comp_unit): Set also symtab->locations_valid. Move the symtab->language code. (var_decode_location): Set cu->has_loclist. * symtab.c (skip_prologue_sal): New variables saved_pc, force_skip and skip. Intialize force_skip from locations_valid. Move the prologue skipping code into two passes. * symtab.h (struct symtab): Make the primary field a bitfield. New field locations_valid. gdb/testsuite/ PR 12573 * gdb.dwarf2/dw2-skip-prologue.S: New file. * gdb.dwarf2/dw2-skip-prologue.c: New file. * gdb.dwarf2/dw2-skip-prologue.exp: New file.
392 lines
10 KiB
ArmAsm
392 lines
10 KiB
ArmAsm
/* This testcase is part of GDB, the GNU debugger.
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Copyright 2011 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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.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 func_start /* DW_AT_low_pc */
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.4byte func_end /* DW_AT_high_pc */
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.ascii "main.c\0" /* DW_AT_name */
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.ascii "GNU C 4.0.0\0" /* DW_AT_producer must be >= 4.0 */
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.byte 2 /* DW_AT_language (DW_LANG_C) */
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.uleb128 2 /* Abbrev: DW_TAG_subprogram */
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.byte 1 /* DW_AT_external */
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.ascii "func\0" /* DW_AT_name */
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.4byte .Ltype_int-.Lcu1_begin /* DW_AT_type */
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.4byte func_start /* DW_AT_low_pc */
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.4byte func_end /* DW_AT_high_pc */
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/* GDB `has_loclist' detection of -O2 -g code needs to see a DW_AT_location
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location list. There may exist -O2 -g CUs still not needing/using any such
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location list - exactly like this CU. Make one up. */
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.uleb128 0x7 /* (DIE (0x42) DW_TAG_formal_parameter) */
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.ascii "param\0" /* DW_AT_name */
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.long .Ltype_int - .Lcu1_begin /* DW_AT_type */
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.long loclist /* DW_AT_location */
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.uleb128 4 /* Abbrev: DW_TAG_inlined_subroutine */
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.ascii "inlined\0" /* DW_AT_name */
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.4byte func0 /* DW_AT_low_pc */
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.4byte func1 /* DW_AT_high_pc */
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.byte 3 /* DW_AT_inline (DW_INL_declared_inlined) */
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.byte 1 /* DW_AT_call_file */
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.byte 8 /* DW_AT_call_line */
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.uleb128 4 /* Abbrev: DW_TAG_inlined_subroutine */
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.ascii "inlined2\0" /* DW_AT_name */
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.4byte func2 /* DW_AT_low_pc */
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.4byte func3 /* DW_AT_high_pc */
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.byte 3 /* DW_AT_inline (DW_INL_declared_inlined) */
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.byte 1 /* DW_AT_call_file */
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.byte 11 /* DW_AT_call_line */
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#ifdef INLINED
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.uleb128 4 /* Abbrev: DW_TAG_inlined_subroutine */
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.ascii "otherinline\0" /* DW_AT_name */
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.4byte func3 /* DW_AT_low_pc */
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.4byte func_end /* DW_AT_high_pc */
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.byte 3 /* DW_AT_inline (DW_INL_declared_inlined) */
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.byte 1 /* DW_AT_call_file */
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.byte 9 /* DW_AT_call_line */
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#endif
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#ifdef LEXICAL
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.uleb128 5 /* Abbrev: DW_TAG_lexical_block */
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.4byte func3 /* DW_AT_low_pc */
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.4byte func_end /* DW_AT_high_pc */
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/* GDB would otherwise ignore the DW_TAG_lexical_block. */
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.uleb128 6 /* Abbrev: DW_TAG_variable */
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.ascii "lexicalvar\0" /* DW_AT_name */
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.4byte .Ltype_int-.Lcu1_begin /* DW_AT_type */
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.byte 0 /* End of children of DW_TAG_lexical_block */
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#endif
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.byte 0 /* End of children of DW_TAG_subprogram */
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/* Simulate `fund' is also named `func' so that the function name matches and
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fund's SAL is not discarded in expand_line_sal_maybe. */
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.uleb128 2 /* Abbrev: DW_TAG_subprogram */
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.byte 1 /* DW_AT_external */
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.ascii "func\0" /* DW_AT_name */
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.4byte .Ltype_int-.Lcu1_begin /* DW_AT_type */
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.4byte fund_start /* DW_AT_low_pc */
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.4byte fund_end /* DW_AT_high_pc */
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.byte 0 /* End of children of DW_TAG_subprogram */
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.Ltype_int:
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.uleb128 3 /* Abbrev: DW_TAG_base_type */
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.ascii "int\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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.byte 0 /* End of children of CU */
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.Lcu1_end:
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.section .debug_loc
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loclist:
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/* Reset the location list base address first. */
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.long -1, 0
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.long func_start, func_end
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.2byte 2f-1f
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1: .byte 0x50 /* DW_OP_reg0 */
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2:
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/* Location list end. */
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.long 0, 0
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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 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 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 1 /* 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 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 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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.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 0x1d /* DW_TAG_inlined_subroutine */
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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 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 0x20 /* DW_AT_inline */
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.uleb128 0xb /* DW_FORM_data1 */
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.uleb128 0x58 /* DW_AT_call_file */
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.uleb128 0xb /* DW_FORM_data1 */
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.uleb128 0x59 /* DW_AT_call_line */
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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 5 /* Abbrev code */
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.uleb128 0x0b /* DW_TAG_lexical_block */
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.byte 1 /* has_children */
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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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.byte 0x0 /* Terminator */
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.byte 0x0 /* Terminator */
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.uleb128 6 /* Abbrev code */
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.uleb128 0x34 /* DW_TAG_variable */
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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 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 0x7 /* (abbrev code) */
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.uleb128 0x5 /* (TAG: DW_TAG_formal_parameter) */
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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 0x02 /* (DW_AT_location) */
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.uleb128 0x06 /* (DW_FORM_data4) */
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.byte 0x0
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.byte 0x0
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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 "main.c\0"
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.uleb128 0
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.uleb128 0
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.uleb128 0
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.ascii "other.c\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 func_start
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.byte 3 /* DW_LNS_advance_line */
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.sleb128 4 /* ... to 5 */
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.byte 1 /* DW_LNS_copy */
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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 func0
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.byte 4 /* DW_LNS_set_file */
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.uleb128 2
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.byte 3 /* DW_LNS_advance_line */
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.sleb128 -4 /* ... to 1 */
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.byte 1 /* DW_LNS_copy */
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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 func1
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.byte 4 /* DW_LNS_set_file */
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.uleb128 1
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.byte 3 /* DW_LNS_advance_line */
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.sleb128 8 /* ... to 9 */
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.byte 1 /* DW_LNS_copy */
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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 func2
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.byte 4 /* DW_LNS_set_file */
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.uleb128 2
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.byte 3 /* DW_LNS_advance_line */
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.sleb128 -8 /* ... to 1 */
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.byte 1 /* DW_LNS_copy */
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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 func3
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.byte 4 /* DW_LNS_set_file */
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.uleb128 1
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.byte 3 /* DW_LNS_advance_line */
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.sleb128 8 /* ... to 9 */
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.byte 1 /* DW_LNS_copy */
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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 func_end
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/* Equivalent copy but renamed s/func/fund/. */
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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 fund_start
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.byte 3 /* DW_LNS_advance_line */
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.sleb128 -4 /* ... to 5 */
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.byte 1 /* DW_LNS_copy */
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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 fund0
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.byte 4 /* DW_LNS_set_file */
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.uleb128 2
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.byte 3 /* DW_LNS_advance_line */
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.sleb128 -4 /* ... to 1 */
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.byte 1 /* DW_LNS_copy */
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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 fund1
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.byte 4 /* DW_LNS_set_file */
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.uleb128 1
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.byte 3 /* DW_LNS_advance_line */
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.sleb128 8 /* ... to 9 */
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.byte 1 /* DW_LNS_copy */
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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 fund2
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.byte 4 /* DW_LNS_set_file */
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.uleb128 2
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.byte 3 /* DW_LNS_advance_line */
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.sleb128 -8 /* ... to 1 */
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.byte 1 /* DW_LNS_copy */
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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 fund3
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.byte 4 /* DW_LNS_set_file */
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.uleb128 1
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.byte 3 /* DW_LNS_advance_line */
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.sleb128 8 /* ... to 9 */
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.byte 1 /* DW_LNS_copy */
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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 fund_end
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/* Line numbering end. */
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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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