binutils-gdb/gdb/testsuite/gdb.dwarf2/dw2-unresolved.S
Tom de Vries 0f2cd53cf4 [gdb/testsuite] Handle missing .note.GNU-stack
On openSUSE Tumbleweed I run into this for the dwarf assembly test-cases, and
some hardcoded assembly test-cases:
...
 Running gdb.dwarf2/fission-absolute-dwo.exp ...
 gdb compile failed, ld: warning: fission-absolute-dwo.o: \
   missing .note.GNU-stack section implies executable stack
 ld: NOTE: This behaviour is deprecated and will be removed in a future \
   version of the linker

                 === gdb Summary ===

 # of untested testcases         1
...

Fix the dwarf assembly test-cases by adding the missing .note.GNU-stack in
proc Dwarf::assemble.

Fix the hard-coded test-cases using this command:
...
$ for f in $(find gdb/testsuite/gdb.* -name *.S); do
    if ! grep -q note.GNU-stack $f; then
      echo -e "\t.section\t.note.GNU-stack,\"\",@progbits" >> $f;
    fi;
  done
...

Likewise for .s files, and gdb/testsuite/lib/my-syscalls.S.

The idiom for arm seems to be to use %progbits instead, see commit 9a5911c08b
("gdb/testsuite/gdb.dwarf2: Replace @ with % for ARM compatability"), so
hand-edit gdb/testsuite/gdb.arch/arm-disp-step.S to use %progbits instead.

Note that dwarf assembly testcases use %progbits as decided by proc _section.

Tested on x86_64-linux.

Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=29674
2022-10-25 14:14:34 +02:00

182 lines
5.7 KiB
ArmAsm

/* This testcase is part of GDB, the GNU debugger.
Copyright 2007-2022 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 <http://www.gnu.org/licenses/>. */
#define CONCAT1(a, b) CONCAT2(a, b)
#define CONCAT2(a, b) a ## b
#ifdef SYMBOL_PREFIX
# define SYMBOL(str) CONCAT1(SYMBOL_PREFIX, str)
#else
# define SYMBOL(str) str
#endif
.data
/* VAR1 is wrong here, in the real inferior it is located on stack. As both
places are never modified and they are initialized to the same value it
makes no difference. Ensure the name clash for "var". */
SYMBOL(var1): .byte 1
.globl SYMBOL(var)
SYMBOL(var): .byte 2
/* Debug information */
.section .debug_info
.Lcu1_begin:
/* CU header */
.4byte .Lcu1_end - .Lcu1_start /* Length of Compilation Unit */
.Lcu1_start:
.2byte 2 /* DWARF Version */
.4byte .Labbrev1_begin /* Offset into abbrev section */
.byte 4 /* Pointer size */
/* CU die */
.uleb128 1 /* Abbrev: DW_TAG_compile_unit */
.4byte cu_text_end /* DW_AT_high_pc */
.4byte cu_text_start /* DW_AT_low_pc */
.ascii "dw2-unresolved-main.c\0" /* DW_AT_name */
.ascii "GNU C 4.3.2\0" /* DW_AT_producer */
.byte 1 /* DW_AT_language (C) */
.Ltype_uchar:
.uleb128 2 /* Abbrev: DW_TAG_base_type */
.ascii "unsigned char\0" /* DW_AT_name */
.byte 1 /* DW_AT_byte_size */
.byte 7 /* DW_AT_encoding */
/* main */
.uleb128 3 /* Abbrev: DW_TAG_subprogram */
.byte 1 /* DW_AT_decl_file */
.byte 2 /* DW_AT_decl_line */
.ascii "main\0" /* DW_AT_name */
.4byte .Ltype_uchar-.Lcu1_begin /* DW_AT_type */
.4byte cu_text_start /* DW_AT_low_pc */
.4byte cu_text_end /* DW_AT_high_pc */
.uleb128 4 /* Abbrev: DW_TAG_variable (location) */
.ascii "var\0" /* DW_AT_name */
.byte 2f - 1f /* DW_AT_location */
1: .byte 3 /* DW_OP_addr */
/* See VAR1 definition why this DIE is not correct. */
.4byte SYMBOL(var1) /* <addr> */
2: .4byte .Ltype_uchar-.Lcu1_begin /* DW_AT_type */
.uleb128 6 /* Abbrev: DW_TAG_lexical_block */
.4byte SYMBOL(extern_block_start) /* DW_AT_low_pc */
.4byte SYMBOL(extern_block_end) /* DW_AT_high_pc */
.uleb128 5 /* Abbrev: DW_TAG_variable (extern) */
.ascii "var\0" /* DW_AT_name */
.4byte .Ltype_uchar-.Lcu1_begin /* DW_AT_type */
.byte 1 /* DW_AT_external */
.byte 0 /* End of children of the lexical block */
.byte 0 /* End of children of main */
.byte 0 /* End of children of CU */
.Lcu1_end:
/* Abbrev table */
.section .debug_abbrev
.Labbrev1_begin:
.uleb128 1 /* Abbrev code */
.uleb128 0x11 /* DW_TAG_compile_unit */
.byte 1 /* has_children */
.uleb128 0x12 /* DW_AT_high_pc */
.uleb128 0x1 /* DW_FORM_addr */
.uleb128 0x11 /* DW_AT_low_pc */
.uleb128 0x1 /* DW_FORM_addr */
.uleb128 0x3 /* DW_AT_name */
.uleb128 0x8 /* DW_FORM_string */
.uleb128 0x25 /* DW_AT_producer */
.uleb128 0x8 /* DW_FORM_string */
.uleb128 0x13 /* DW_AT_language */
.uleb128 0xb /* DW_FORM_data1 */
.byte 0x0 /* Terminator */
.byte 0x0 /* Terminator */
.uleb128 2 /* Abbrev code */
.uleb128 0x24 /* DW_TAG_base_type */
.byte 0 /* has_children */
.uleb128 0x3 /* DW_AT_name */
.uleb128 0x8 /* DW_FORM_string */
.uleb128 0xb /* DW_AT_byte_size */
.uleb128 0xb /* DW_FORM_data1 */
.uleb128 0x3e /* DW_AT_encoding */
.uleb128 0xb /* DW_FORM_data1 */
.byte 0x0 /* Terminator */
.byte 0x0 /* Terminator */
.uleb128 3 /* Abbrev code */
.uleb128 0x2e /* DW_TAG_subprogram */
.byte 1 /* has_children */
.uleb128 0x3a /* DW_AT_decl_file */
.uleb128 0xb /* DW_FORM_data1 */
.uleb128 0x3b /* DW_AT_decl_line */
.uleb128 0xb /* DW_FORM_data1 */
.uleb128 0x3 /* DW_AT_name */
.uleb128 0x8 /* DW_FORM_string */
.uleb128 0x49 /* DW_AT_type */
.uleb128 0x13 /* DW_FORM_ref4 */
.uleb128 0x11 /* DW_AT_low_pc */
.uleb128 0x1 /* DW_FORM_addr */
.uleb128 0x12 /* DW_AT_high_pc */
.uleb128 0x1 /* DW_FORM_addr */
.byte 0x0 /* Terminator */
.byte 0x0 /* Terminator */
.uleb128 4 /* Abbrev code (location) */
.uleb128 0x34 /* DW_TAG_variable */
.byte 0 /* has_children */
.uleb128 0x3 /* DW_AT_name */
.uleb128 0x8 /* DW_FORM_string */
.uleb128 0x2 /* DW_AT_location */
.uleb128 0xa /* DW_FORM_block1 */
.uleb128 0x49 /* DW_AT_type */
.uleb128 0x13 /* DW_FORM_ref4 */
.byte 0x0 /* Terminator */
.byte 0x0 /* Terminator */
.uleb128 5 /* Abbrev code (extern) */
.uleb128 0x34 /* DW_TAG_variable */
.byte 0 /* has_children */
.uleb128 0x3 /* DW_AT_name */
.uleb128 0x8 /* DW_FORM_string */
.uleb128 0x49 /* DW_AT_type */
.uleb128 0x13 /* DW_FORM_ref4 */
.uleb128 0x3f /* DW_AT_external */
.uleb128 0xc /* DW_FORM_flag */
.byte 0x0 /* Terminator */
.byte 0x0 /* Terminator */
.uleb128 6 /* Abbrev code */
.uleb128 0x0b /* DW_TAG_lexical_block */
.byte 1 /* has_children */
.uleb128 0x11 /* DW_AT_low_pc */
.uleb128 0x1 /* DW_FORM_addr */
.uleb128 0x12 /* DW_AT_high_pc */
.uleb128 0x1 /* DW_FORM_addr */
.byte 0x0 /* Terminator */
.byte 0x0 /* Terminator */
.byte 0x0 /* Terminator */
.byte 0x0 /* Terminator */
.section .note.GNU-stack,"",@progbits