From bed911e5410fd997b9b8ad9ec25a942dd5bba7bc Mon Sep 17 00:00:00 2001 From: Doug Evans Date: Mon, 28 Jan 2013 18:02:48 +0000 Subject: [PATCH] * dwarf2loc.c (dwarf2_find_location_expression): Don't add base address to addresses from dwo files. testsuite/ * gdb.dwarf2/fission-loclists.exp: New file. * gdb.dwarf2/fission-loclists.S: New file. --- gdb/ChangeLog | 5 + gdb/dwarf2loc.c | 11 +- gdb/testsuite/ChangeLog | 5 + gdb/testsuite/gdb.dwarf2/fission-loclists.S | 554 ++++++++++++++++++++++++++ gdb/testsuite/gdb.dwarf2/fission-loclists.exp | 42 ++ 5 files changed, 614 insertions(+), 3 deletions(-) create mode 100644 gdb/testsuite/gdb.dwarf2/fission-loclists.S create mode 100644 gdb/testsuite/gdb.dwarf2/fission-loclists.exp diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 1b04f69..0180617 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,8 @@ +2013-01-28 Doug Evans + + * dwarf2loc.c (dwarf2_find_location_expression): Don't add base address + to addresses from dwo files. + 2013-01-25 Siva Chandra Reddy * valops.c (find_overload_match): Remove unused argument 'lax'. diff --git a/gdb/dwarf2loc.c b/gdb/dwarf2loc.c index 3688425..62d0098 100644 --- a/gdb/dwarf2loc.c +++ b/gdb/dwarf2loc.c @@ -252,9 +252,14 @@ dwarf2_find_location_expression (struct dwarf2_loclist_baton *baton, gdb_assert_not_reached ("bad debug_loc_kind"); } - /* Otherwise, a location expression entry. */ - low += base_address; - high += base_address; + /* Otherwise, a location expression entry. + If the entry is from a DWO, don't add base address: the entry is + from .debug_addr which has absolute addresses. */ + if (! baton->from_dwo) + { + low += base_address; + high += base_address; + } length = extract_unsigned_integer (loc_ptr, 2, byte_order); loc_ptr += 2; diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog index 47ea814..745c9ba 100644 --- a/gdb/testsuite/ChangeLog +++ b/gdb/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2013-01-28 Doug Evans + + * gdb.dwarf2/fission-loclists.exp: New file. + * gdb.dwarf2/fission-loclists.S: New file. + 2013-01-26 Jan Kratochvil Code cleanup. diff --git a/gdb/testsuite/gdb.dwarf2/fission-loclists.S b/gdb/testsuite/gdb.dwarf2/fission-loclists.S new file mode 100644 index 0000000..33fd8fa --- /dev/null +++ b/gdb/testsuite/gdb.dwarf2/fission-loclists.S @@ -0,0 +1,554 @@ +/* This testcase is part of GDB, the GNU debugger. + + Copyright 2013 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . + + This file was created by doing: + gcc -O2 -gdwarf-4 -gsplit-debug -S -dA fission-loclists.c + and then massaging the output. + + fission-loclists.c: + + volatile v; + + __attribute__ ((noinline)) void foo (int* x) { v = *x; } + + int + main (int argc, char *argv[]) + { + foo (&argc); + return 0; + } +*/ + + .file "fission-loclists.c" + .text +.Ltext0: + .p2align 4,,15 + .globl foo + .type foo, @function +foo: +.LFB0: + .file 1 "fission-loclists.c" + # fission-loclists.c:3 + .loc 1 3 0 + .cfi_startproc +.LVL0: +# BLOCK 2 freq:10000 seq:0 +# PRED: ENTRY [100.0%] (fallthru) + # fission-loclists.c:3 + .loc 1 3 0 + movl (%rdi), %eax + movl %eax, v(%rip) +# SUCC: EXIT [100.0%] + ret + .cfi_endproc +.LFE0: + .size foo, .-foo + .text # was .section .text.startup,"ax",@progbits + .p2align 4,,15 + .globl main + .type main, @function +main: +.LFB1: + # fission-loclists.c:7 + .loc 1 7 0 + .cfi_startproc +.LVL1: +# BLOCK 2 freq:10000 seq:0 +# PRED: ENTRY [100.0%] (fallthru) + subq $8, %rsp + .cfi_def_cfa_offset 16 + # fission-loclists.c:7 + .loc 1 7 0 + movl %edi, 4(%rsp) + # fission-loclists.c:8 + .loc 1 8 0 + leaq 4(%rsp), %rdi +.LVL2: + call foo +.LVL3: + # fission-loclists.c:10 + .loc 1 10 0 + xorl %eax, %eax + addq $8, %rsp + .cfi_def_cfa_offset 8 +# SUCC: EXIT [100.0%] + ret + .cfi_endproc +.LFE1: + .size main, .-main + .comm v,4,4 + .text +.Letext0: + .section .debug_addr,"",@progbits +.Ldebug_addr0: + .8byte .LVL1 # 0x0 + .8byte v # 0x1 + .8byte .LVL3 # 0x2 + .8byte .LFB0 # 0x3 + .8byte .LFB1 # 0x4 + .8byte .LVL3-1 # 0x5 + .8byte .LVL2 # 0x6 + .section .debug_info.dwo,"",@progbits +.Ldebug_info0: + .4byte .Ldebug_info0_end - .Ldebug_info0 - 4 # Length of Compilation Unit Info + .value 0x4 # DWARF version number + .4byte .Ldebug_abbrev0 # Offset Into Abbrev. Section + .byte 0x8 # Pointer Size (in bytes) + .uleb128 0x1 # (DIE (0xb) DW_TAG_compile_unit) + .ascii "GNU C 4.7.x-fission\0" # DW_AT_producer + .byte 0x1 # DW_AT_language + .ascii "fission-loclists.c\0" # DW_AT_name + .ascii "/tmp\0" # DW_AT_comp_dir + .byte 0xcb # DW_AT_GNU_dwo_id + .byte 0x64 + .byte 0x3e + .byte 0x34 + .byte 0x1b + .byte 0x8a + .byte 0xd6 + .byte 0x5 +.Lfoo_func: + .uleb128 0x2 # (DIE (0x5c) DW_TAG_subprogram) + # DW_AT_external + .ascii "foo\0" # DW_AT_name + .byte 0x1 # DW_AT_decl_file (fission-loclists.c) + .byte 0x3 # DW_AT_decl_line + # DW_AT_prototyped + .uleb128 0x3 # DW_AT_low_pc + .8byte .LFE0-.LFB0 # DW_AT_high_pc + .uleb128 0x1 # DW_AT_frame_base + .byte 0x9c # DW_OP_call_frame_cfa + # DW_AT_GNU_all_call_sites + .4byte .Lint_ptr_type - .Ldebug_info0 # DW_AT_sibling + .uleb128 0x3 # (DIE (0x72) DW_TAG_formal_parameter) + .ascii "x\0" # DW_AT_name + .byte 0x1 # DW_AT_decl_file (fission-loclists.c) + .byte 0x3 # DW_AT_decl_line + .4byte .Lint_ptr_type - .Ldebug_info0 # DW_AT_type + .uleb128 0x1 # DW_AT_location + .byte 0x55 # DW_OP_reg5 + .byte 0 # end of children of DIE 0x5c +.Lint_ptr_type: + .uleb128 0x4 # (DIE (0x7e) DW_TAG_pointer_type) + .byte 0x8 # DW_AT_byte_size + .4byte .Lint_type - .Ldebug_info0 # DW_AT_type +.Lint_type: + .uleb128 0x5 # (DIE (0x84) DW_TAG_base_type) + .byte 0x4 # DW_AT_byte_size + .byte 0x5 # DW_AT_encoding + .ascii "int\0" # DW_AT_name + .uleb128 0x6 # (DIE (0x8b) DW_TAG_subprogram) + # DW_AT_external + .ascii "main\0" # DW_AT_name + .byte 0x1 # DW_AT_decl_file (fission-loclists.c) + .byte 0x6 # DW_AT_decl_line + # DW_AT_prototyped + .4byte .Lint_type - .Ldebug_info0 # DW_AT_type + .uleb128 0x4 # DW_AT_low_pc + .8byte .LFE1-.LFB1 # DW_AT_high_pc + .uleb128 0x1 # DW_AT_frame_base + .byte 0x9c # DW_OP_call_frame_cfa + # DW_AT_GNU_all_call_sites + .4byte .Lchar_ptr_ptr_type - .Ldebug_info0 # DW_AT_sibling + .uleb128 0x7 # (DIE (0xa6) DW_TAG_formal_parameter) + .ascii "argc\0" # DW_AT_name + .byte 0x1 # DW_AT_decl_file (fission-loclists.c) + .byte 0x6 # DW_AT_decl_line + .4byte .Lint_type - .Ldebug_info0 # DW_AT_type + .4byte .LLST0-.Ldebug_loc0 # DW_AT_location + .uleb128 0x7 # (DIE (0xb6) DW_TAG_formal_parameter) + .ascii "argv\0" # DW_AT_name + .byte 0x1 # DW_AT_decl_file (fission-loclists.c) + .byte 0x6 # DW_AT_decl_line + .4byte .Lchar_ptr_ptr_type - .Ldebug_info0 # DW_AT_type + .4byte .LLST1-.Ldebug_loc0 # DW_AT_location + .uleb128 0x8 # (DIE (0xc6) DW_TAG_GNU_call_site) + .uleb128 0x2 # DW_AT_low_pc + .4byte .Lfoo_func - .Ldebug_info0 # DW_AT_abstract_origin + .uleb128 0x9 # (DIE (0xcc) DW_TAG_GNU_call_site_parameter) + .uleb128 0x1 # DW_AT_location + .byte 0x55 # DW_OP_reg5 + .uleb128 0x2 # DW_AT_GNU_call_site_value + .byte 0x91 # DW_OP_fbreg + .sleb128 -12 + .byte 0 # end of children of DIE 0xc6 + .byte 0 # end of children of DIE 0x8b +.Lchar_ptr_ptr_type: + .uleb128 0x4 # (DIE (0xd4) DW_TAG_pointer_type) + .byte 0x8 # DW_AT_byte_size + .4byte .Lchar_ptr_type - .Ldebug_info0 # DW_AT_type +.Lchar_ptr_type: + .uleb128 0x4 # (DIE (0xda) DW_TAG_pointer_type) + .byte 0x8 # DW_AT_byte_size + .4byte .Lchar_type - .Ldebug_info0 # DW_AT_type +.Lchar_type: + .uleb128 0x5 # (DIE (0xe0) DW_TAG_base_type) + .byte 0x1 # DW_AT_byte_size + .byte 0x6 # DW_AT_encoding + .ascii "char\0" # DW_AT_name + .uleb128 0xa # (DIE (0xe8) DW_TAG_variable) + .ascii "v\0" # DW_AT_name + .byte 0x1 # DW_AT_decl_file (fission-loclists.c) + .byte 0x1 # DW_AT_decl_line + .4byte .Lvolatile_int_type - .Ldebug_info0 # DW_AT_type + # DW_AT_external + .uleb128 0x2 # DW_AT_location + .byte 0xfb # DW_OP_GNU_addr_index + .uleb128 0x1 # (index into .debug_addr) +.Lvolatile_int_type: + .uleb128 0xb # (DIE (0xf4) DW_TAG_volatile_type) + .4byte .Lint_type - .Ldebug_info0 # DW_AT_type + .byte 0 # end of children of DIE 0xb +.Ldebug_info0_end: + .section .debug_info,"",@progbits +.Lskeleton_debug_info0: + .4byte .Lskeleton_debug_info0_end - .Lskeleton_debug_info0 - 4 # Length of Compilation Unit Info + .value 0x4 # DWARF version number + .4byte .Lskeleton_debug_abbrev0 # Offset Into Abbrev. Section + .byte 0x8 # Pointer Size (in bytes) + .uleb128 0x1 # (DIE (0) DW_TAG_compile_unit) + .4byte .Ldebug_ranges0+0 # DW_AT_ranges + # This next line is the core of the test. + # We want a non-zero value for low_pc to verify gdb is *not* using it + # (the initial base address) when evaluating location list addresses in + # .debug_loc.dwo. + # Note: Setting a non-zero value here means we had to adjust the + # values in .debug_ranges. + .8byte .Ltext0 # DW_AT_low_pc + .4byte .Ldebug_line0 # DW_AT_stmt_list + .byte 0xcb # DW_AT_GNU_dwo_id + .byte 0x64 + .byte 0x3e + .byte 0x34 + .byte 0x1b + .byte 0x8a + .byte 0xd6 + .byte 0x5 + .4byte .Ldebug_ranges0 # DW_AT_GNU_ranges_base + .ascii "/tmp\0" # DW_AT_comp_dir + # Normally dwo_name would be "fission-loclists.dwo". + # Simplification: Leave the DWO contents in the executable. + # "gdb.dwarf2/" is included so that gdb can load the file without + # having to set "debug-file-directory". This is useful when + # testing with cc-with-tweaks.sh -i. + .ascii "gdb.dwarf2/fission-loclists\0" # DW_AT_GNU_dwo_name + .4byte .Ldebug_pubnames0 # DW_AT_GNU_pubnames + .4byte .Ldebug_pubtypes0 # DW_AT_GNU_pubtypes + .4byte .Ldebug_addr0 # DW_AT_GNU_addr_base +.Lskeleton_debug_info0_end: + .section .debug_abbrev,"",@progbits +.Lskeleton_debug_abbrev0: + .uleb128 0x1 # (abbrev code) + .uleb128 0x11 # (TAG: DW_TAG_compile_unit) + .byte 0 # DW_children_no + .uleb128 0x55 # (DW_AT_ranges) + .uleb128 0x17 # (DW_FORM_sec_offset) + .uleb128 0x11 # (DW_AT_low_pc) + .uleb128 0x1 # (DW_FORM_addr) + .uleb128 0x10 # (DW_AT_stmt_list) + .uleb128 0x17 # (DW_FORM_sec_offset) + .uleb128 0x2131 # (DW_AT_GNU_dwo_id) + .uleb128 0x7 # (DW_FORM_data8) + .uleb128 0x2132 # (DW_AT_GNU_ranges_base) + .uleb128 0x17 # (DW_FORM_sec_offset) + .uleb128 0x1b # (DW_AT_comp_dir) + .uleb128 0x8 # (DW_FORM_string) + .uleb128 0x2130 # (DW_AT_GNU_dwo_name) + .uleb128 0x8 # (DW_FORM_string) + .uleb128 0x2134 # (DW_AT_GNU_pubnames) + .uleb128 0x17 # (DW_FORM_sec_offset) + .uleb128 0x2135 # (DW_AT_GNU_pubtypes) + .uleb128 0x17 # (DW_FORM_sec_offset) + .uleb128 0x2133 # (DW_AT_GNU_addr_base) + .uleb128 0x17 # (DW_FORM_sec_offset) + .byte 0 + .byte 0 + .uleb128 0x2 # (abbrev code) + .uleb128 0x41 # (TAG: DW_TAG_type_unit) + .byte 0 # DW_children_no + .uleb128 0x1b # (DW_AT_comp_dir) + .uleb128 0x8 # (DW_FORM_string) + .uleb128 0x2130 # (DW_AT_GNU_dwo_name) + .uleb128 0x8 # (DW_FORM_string) + .uleb128 0x2134 # (DW_AT_GNU_pubnames) + .uleb128 0x17 # (DW_FORM_sec_offset) + .uleb128 0x2135 # (DW_AT_GNU_pubtypes) + .uleb128 0x17 # (DW_FORM_sec_offset) + .uleb128 0x2133 # (DW_AT_GNU_addr_base) + .uleb128 0x17 # (DW_FORM_sec_offset) + .byte 0 + .byte 0 + .byte 0 # end of skeleton .debug_abbrev + .section .debug_abbrev.dwo,"",@progbits +.Ldebug_abbrev0: + .uleb128 0x1 # (abbrev code) + .uleb128 0x11 # (TAG: DW_TAG_compile_unit) + .byte 0x1 # DW_children_yes + .uleb128 0x25 # (DW_AT_producer) + .uleb128 0x8 # (DW_FORM_string) + .uleb128 0x13 # (DW_AT_language) + .uleb128 0xb # (DW_FORM_data1) + .uleb128 0x3 # (DW_AT_name) + .uleb128 0x8 # (DW_FORM_string) + .uleb128 0x1b # (DW_AT_comp_dir) + .uleb128 0x8 # (DW_FORM_string) + .uleb128 0x2131 # (DW_AT_GNU_dwo_id) + .uleb128 0x7 # (DW_FORM_data8) + .byte 0 + .byte 0 + .uleb128 0x2 # (abbrev code) + .uleb128 0x2e # (TAG: DW_TAG_subprogram) + .byte 0x1 # DW_children_yes + .uleb128 0x3f # (DW_AT_external) + .uleb128 0x19 # (DW_FORM_flag_present) + .uleb128 0x3 # (DW_AT_name) + .uleb128 0x8 # (DW_FORM_string) + .uleb128 0x3a # (DW_AT_decl_file) + .uleb128 0xb # (DW_FORM_data1) + .uleb128 0x3b # (DW_AT_decl_line) + .uleb128 0xb # (DW_FORM_data1) + .uleb128 0x27 # (DW_AT_prototyped) + .uleb128 0x19 # (DW_FORM_flag_present) + .uleb128 0x11 # (DW_AT_low_pc) + .uleb128 0x1f01 # (DW_FORM_GNU_addr_index) + .uleb128 0x12 # (DW_AT_high_pc) + .uleb128 0x7 # (DW_FORM_data8) + .uleb128 0x40 # (DW_AT_frame_base) + .uleb128 0x18 # (DW_FORM_exprloc) + .uleb128 0x2117 # (DW_AT_GNU_all_call_sites) + .uleb128 0x19 # (DW_FORM_flag_present) + .uleb128 0x1 # (DW_AT_sibling) + .uleb128 0x13 # (DW_FORM_ref4) + .byte 0 + .byte 0 + .uleb128 0x3 # (abbrev code) + .uleb128 0x5 # (TAG: DW_TAG_formal_parameter) + .byte 0 # DW_children_no + .uleb128 0x3 # (DW_AT_name) + .uleb128 0x8 # (DW_FORM_string) + .uleb128 0x3a # (DW_AT_decl_file) + .uleb128 0xb # (DW_FORM_data1) + .uleb128 0x3b # (DW_AT_decl_line) + .uleb128 0xb # (DW_FORM_data1) + .uleb128 0x49 # (DW_AT_type) + .uleb128 0x13 # (DW_FORM_ref4) + .uleb128 0x2 # (DW_AT_location) + .uleb128 0x18 # (DW_FORM_exprloc) + .byte 0 + .byte 0 + .uleb128 0x4 # (abbrev code) + .uleb128 0xf # (TAG: DW_TAG_pointer_type) + .byte 0 # DW_children_no + .uleb128 0xb # (DW_AT_byte_size) + .uleb128 0xb # (DW_FORM_data1) + .uleb128 0x49 # (DW_AT_type) + .uleb128 0x13 # (DW_FORM_ref4) + .byte 0 + .byte 0 + .uleb128 0x5 # (abbrev code) + .uleb128 0x24 # (TAG: DW_TAG_base_type) + .byte 0 # DW_children_no + .uleb128 0xb # (DW_AT_byte_size) + .uleb128 0xb # (DW_FORM_data1) + .uleb128 0x3e # (DW_AT_encoding) + .uleb128 0xb # (DW_FORM_data1) + .uleb128 0x3 # (DW_AT_name) + .uleb128 0x8 # (DW_FORM_string) + .byte 0 + .byte 0 + .uleb128 0x6 # (abbrev code) + .uleb128 0x2e # (TAG: DW_TAG_subprogram) + .byte 0x1 # DW_children_yes + .uleb128 0x3f # (DW_AT_external) + .uleb128 0x19 # (DW_FORM_flag_present) + .uleb128 0x3 # (DW_AT_name) + .uleb128 0x8 # (DW_FORM_string) + .uleb128 0x3a # (DW_AT_decl_file) + .uleb128 0xb # (DW_FORM_data1) + .uleb128 0x3b # (DW_AT_decl_line) + .uleb128 0xb # (DW_FORM_data1) + .uleb128 0x27 # (DW_AT_prototyped) + .uleb128 0x19 # (DW_FORM_flag_present) + .uleb128 0x49 # (DW_AT_type) + .uleb128 0x13 # (DW_FORM_ref4) + .uleb128 0x11 # (DW_AT_low_pc) + .uleb128 0x1f01 # (DW_FORM_GNU_addr_index) + .uleb128 0x12 # (DW_AT_high_pc) + .uleb128 0x7 # (DW_FORM_data8) + .uleb128 0x40 # (DW_AT_frame_base) + .uleb128 0x18 # (DW_FORM_exprloc) + .uleb128 0x2117 # (DW_AT_GNU_all_call_sites) + .uleb128 0x19 # (DW_FORM_flag_present) + .uleb128 0x1 # (DW_AT_sibling) + .uleb128 0x13 # (DW_FORM_ref4) + .byte 0 + .byte 0 + .uleb128 0x7 # (abbrev code) + .uleb128 0x5 # (TAG: DW_TAG_formal_parameter) + .byte 0 # DW_children_no + .uleb128 0x3 # (DW_AT_name) + .uleb128 0x8 # (DW_FORM_string) + .uleb128 0x3a # (DW_AT_decl_file) + .uleb128 0xb # (DW_FORM_data1) + .uleb128 0x3b # (DW_AT_decl_line) + .uleb128 0xb # (DW_FORM_data1) + .uleb128 0x49 # (DW_AT_type) + .uleb128 0x13 # (DW_FORM_ref4) + .uleb128 0x2 # (DW_AT_location) + .uleb128 0x17 # (DW_FORM_sec_offset) + .byte 0 + .byte 0 + .uleb128 0x8 # (abbrev code) + .uleb128 0x4109 # (TAG: DW_TAG_GNU_call_site) + .byte 0x1 # DW_children_yes + .uleb128 0x11 # (DW_AT_low_pc) + .uleb128 0x1f01 # (DW_FORM_GNU_addr_index) + .uleb128 0x31 # (DW_AT_abstract_origin) + .uleb128 0x13 # (DW_FORM_ref4) + .byte 0 + .byte 0 + .uleb128 0x9 # (abbrev code) + .uleb128 0x410a # (TAG: DW_TAG_GNU_call_site_parameter) + .byte 0 # DW_children_no + .uleb128 0x2 # (DW_AT_location) + .uleb128 0x18 # (DW_FORM_exprloc) + .uleb128 0x2111 # (DW_AT_GNU_call_site_value) + .uleb128 0x18 # (DW_FORM_exprloc) + .byte 0 + .byte 0 + .uleb128 0xa # (abbrev code) + .uleb128 0x34 # (TAG: DW_TAG_variable) + .byte 0 # DW_children_no + .uleb128 0x3 # (DW_AT_name) + .uleb128 0x8 # (DW_FORM_string) + .uleb128 0x3a # (DW_AT_decl_file) + .uleb128 0xb # (DW_FORM_data1) + .uleb128 0x3b # (DW_AT_decl_line) + .uleb128 0xb # (DW_FORM_data1) + .uleb128 0x49 # (DW_AT_type) + .uleb128 0x13 # (DW_FORM_ref4) + .uleb128 0x3f # (DW_AT_external) + .uleb128 0x19 # (DW_FORM_flag_present) + .uleb128 0x2 # (DW_AT_location) + .uleb128 0x18 # (DW_FORM_exprloc) + .byte 0 + .byte 0 + .uleb128 0xb # (abbrev code) + .uleb128 0x35 # (TAG: DW_TAG_volatile_type) + .byte 0 # DW_children_no + .uleb128 0x49 # (DW_AT_type) + .uleb128 0x13 # (DW_FORM_ref4) + .byte 0 + .byte 0 + .byte 0 + .section .debug_loc.dwo,"",@progbits +.Ldebug_loc0: +.LLST0: + .byte 0x3 # Location list start/length entry (*.LLST0) + .uleb128 0 # Location list range start index (*.LVL1) + .4byte .LVL2-.LVL1 # Location list range length (*.LLST0) + .value 0x1 # Location expression size + .byte 0x55 # DW_OP_reg5 + .byte 0x3 # Location list start/length entry (*.LLST0) + .uleb128 0x6 # Location list range start index (*.LVL2) + .4byte .LFE1-.LVL2 # Location list range length (*.LLST0) + .value 0x2 # Location expression size + .byte 0x91 # DW_OP_fbreg + .sleb128 -12 + .byte 0 # Location list terminator (*.LLST0) +.LLST1: + .byte 0x3 # Location list start/length entry (*.LLST1) + .uleb128 0 # Location list range start index (*.LVL1) + .4byte .LVL3-1-.LVL1 # Location list range length (*.LLST1) + .value 0x1 # Location expression size + .byte 0x54 # DW_OP_reg4 + .byte 0x3 # Location list start/length entry (*.LLST1) + .uleb128 0x5 # Location list range start index (*.LVL3-1) + .4byte .LFE1-.LVL3-1 # Location list range length (*.LLST1) + .value 0x4 # Location expression size + .byte 0xf3 # DW_OP_GNU_entry_value + .uleb128 0x1 + .byte 0x54 # DW_OP_reg4 + .byte 0x9f # DW_OP_stack_value + .byte 0 # Location list terminator (*.LLST1) + .section .debug_gnu_pubnames,"",@progbits +.Ldebug_pubnames0: + .4byte 0 + .section .debug_gnu_pubtypes,"",@progbits +.Ldebug_pubtypes0: + .4byte 0 + .section .debug_aranges,"",@progbits + .4byte 0x3c # Length of Address Ranges Info + .value 0x2 # DWARF Version + .4byte .Lskeleton_debug_info0 # Offset of Compilation Unit Info + .byte 0x8 # Size of Address + .byte 0 # Size of Segment Descriptor + .value 0 # Pad to 16 byte boundary + .value 0 + .8byte .Ltext0 # Address + .8byte .Letext0-.Ltext0 # Length + .8byte .LFB1 # Address + .8byte .LFE1-.LFB1 # Length + .8byte 0 + .8byte 0 + .section .debug_ranges,"",@progbits +.Ldebug_ranges0: + .8byte .Ltext0 - .Ltext0 # Offset 0 + .8byte .Letext0 - .Ltext0 + .8byte .LFB1 - .Ltext0 # Offset 0x10 + .8byte .LFE1 - .Ltext0 + .8byte 0 + .8byte 0 + .section .debug_line,"",@progbits +.Ldebug_line0: + .section .debug_line.dwo,"",@progbits +.Lskeleton_debug_line0: + .4byte .LELT0-.LSLT0 # Length of Source Line Info +.LSLT0: + .value 0x4 # DWARF Version + .4byte .LELTP0-.LASLTP0 # Prolog Length +.LASLTP0: + .byte 0x1 # Minimum Instruction Length + .byte 0x1 # Maximum Operations Per Instruction + .byte 0x1 # Default is_stmt_start flag + .byte 0xf6 # Line Base Value (Special Opcodes) + .byte 0xf2 # Line Range Value (Special Opcodes) + .byte 0xd # Special Opcode Base + .byte 0 # opcode: 0x1 has 0 args + .byte 0x1 # opcode: 0x2 has 1 args + .byte 0x1 # opcode: 0x3 has 1 args + .byte 0x1 # opcode: 0x4 has 1 args + .byte 0x1 # opcode: 0x5 has 1 args + .byte 0 # opcode: 0x6 has 0 args + .byte 0 # opcode: 0x7 has 0 args + .byte 0 # opcode: 0x8 has 0 args + .byte 0x1 # opcode: 0x9 has 1 args + .byte 0 # opcode: 0xa has 0 args + .byte 0 # opcode: 0xb has 0 args + .byte 0x1 # opcode: 0xc has 1 args + .byte 0 # End directory table + .ascii "fission-loclists.c\0" # File Entry: 0x1 + .uleb128 0 + .uleb128 0 + .uleb128 0 + .byte 0 # End file name table +.LELTP0: +.LELT0: + .section .debug_str_offsets.dwo,"",@progbits + .section .debug_str.dwo,"",@progbits + .ident "GCC: 4.7.x-fission" + .section .note.GNU-stack,"",@progbits diff --git a/gdb/testsuite/gdb.dwarf2/fission-loclists.exp b/gdb/testsuite/gdb.dwarf2/fission-loclists.exp new file mode 100644 index 0000000..1151fad --- /dev/null +++ b/gdb/testsuite/gdb.dwarf2/fission-loclists.exp @@ -0,0 +1,42 @@ +# Copyright 2013 Free Software Foundation, Inc. + +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + +load_lib dwarf.exp + +# This test can only be run on targets which support DWARF-2 and use gas. +if ![dwarf2_support] { + return 0 +} + +# This test can only be run on x86-64 targets. +if {![istarget x86_64-*] || ![is_lp64_target]} { + return 0 +} + +set basename "fission-loclists" + +standard_testfile .S + +if { [prepare_for_testing "$testfile.exp" "$testfile" "$srcfile" {nodebug}] } { + return -1 +} + +if ![runto_main] { + return -1 +} + +# Verify gdb can find argc. + +gdb_test "p argc" " = 1" -- 2.7.4