426f7bbfd4
Before commit5ef670d81f"[gdb/testsuite] Add dummy start and end CUs in dwarf assembly" we had in exec outputs/gdb.dlang/watch-loc/watch-loc a D compilation unit at offset 0xc7: ... Compilation Unit @ offset 0xc7: Length: 0x4c (32-bit) Version: 4 Abbrev Offset: 0x64 Pointer Size: 8 <0><d2>: Abbrev Number: 2 (DW_TAG_compile_unit) <d3> DW_AT_language : 19 (D) ... with a corresponding .debug_aranges entry: ... Offset into .debug_info: 0xc7 Pointer Size: 4 Segment Size: 0 Address Length 004004a7 0000000b 00000000 00000000 ... After that commit we have a dummy CU at offset 0xc7 and the D compilation unit at offset 0xd2: ... Compilation Unit @ offset 0xc7: Length: 0x7 (32-bit) Version: 4 Abbrev Offset: 0x64 Pointer Size: 8 Compilation Unit @ offset 0xd2: Length: 0x4c (32-bit) Version: 4 Abbrev Offset: 0x65 Pointer Size: 8 <0><dd>: Abbrev Number: 2 (DW_TAG_compile_unit) <de> DW_AT_language : 19 (D) ... while the .debug_aranges entry still points to 0xc7. The problem is that the test-case uses a hack (quoting from commit75f06e9dc5): ... [ Note: this is a non-trivial test-case. The file watch-loc-dw.S contains a .debug_info section, but not an .debug_aranges section or any actual code. The file watch-loc.c contains code and a .debug_aranges section, but no other debug section. So, the intent for the .debug_aranges section in watch-loc.c is to refer to a compilation unit in the .debug_info section in watch-loc-dw.S. ] ... and adding the dummy CU caused that hack to stop working. Fix this by moving the generation of .debug_aranges from watch-loc.c to watch-loc.exp, such that we have: ... Offset into .debug_info: 0xd2 Pointer Size: 4 Segment Size: 0 Address Length 004004a7 0000000b 00000000 00000000 ... Tested on x86_64-linux.
37 lines
989 B
C
37 lines
989 B
C
/* Copyright 2017-2021 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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/* DWARF will describe these contents as being inside a D module. */
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typedef struct tstruct
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{
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} tstruct;
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tstruct my_data;
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int _Dmain (void)
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{
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asm ("_Dmain_label: .globl _Dmain_label");
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return 0;
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}
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asm ("_Dmain_end: .globl _Dmain_end");
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int
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main (void)
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{
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return _Dmain ();
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}
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