Display more information when decoding DW_AT_endianity, DW_AT_decimal_sign, DW_AT_defaulted and DW_AT_discr_list DWARF attributes.
* dwarf.c (read_and_display_attr_value): Handle DW_AT_endianity, DW_END_default, DW_END_big, DW_END_little, DW_ATE_UCS, DW_ATE_ASCII, DW_CC_pass_by_reference, DW_CC_pass_by_value, DW_CC_GNU_renesas_sh, DW_CC_GNU_borland_fastcall_i386, DW_AT_decimal_sign, DW_AT_defaulted, DW_AT_discr_list. (get_TAG_name): Report user generated tag values. * testsuite/binutils-all/dwarf-attributes.S: New test. * testsuite/binutils-all/dwarf-attributes.W. Expected output from readelf. * testsuite/binutils-all/readelf.exp: Run the new test.
This commit is contained in:
Nick Clifton
parent
7fa29be949
commit
04914e3707
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@ -1,3 +1,17 @@
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2017-10-11 Peeter Joot <peeter.joot@lzlabs.com>
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Nick Clifton <nickc@redhat.com>
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* dwarf.c (read_and_display_attr_value): Handle DW_AT_endianity,
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DW_END_default, DW_END_big, DW_END_little, DW_ATE_UCS,
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DW_ATE_ASCII, DW_CC_pass_by_reference, DW_CC_pass_by_value,
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DW_CC_GNU_renesas_sh, DW_CC_GNU_borland_fastcall_i386,
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DW_AT_decimal_sign, DW_AT_defaulted, DW_AT_discr_list.
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(get_TAG_name): Report user generated tag values.
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* testsuite/binutils-all/dwarf-attributes.S: New test.
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* testsuite/binutils-all/dwarf-attributes.W. Expected output from
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readelf.
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* testsuite/binutils-all/readelf.exp: Run the new test.
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2017-10-10 Tom Tromey <tom@tromey.com>
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* dwarf-mode.el: Bump to version 1.4.
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@ -963,13 +963,16 @@ process_abbrev_section (unsigned char *start, unsigned char *end)
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static const char *
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get_TAG_name (unsigned long tag)
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{
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const char *name = get_DW_TAG_name ((unsigned int)tag);
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const char *name = get_DW_TAG_name ((unsigned int) tag);
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if (name == NULL)
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{
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static char buffer[100];
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snprintf (buffer, sizeof (buffer), _("Unknown TAG value: %lx"), tag);
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if (tag >= DW_TAG_lo_user && tag <= DW_TAG_hi_user)
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snprintf (buffer, sizeof (buffer), _("User TAG value: %#lx"), tag);
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else
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snprintf (buffer, sizeof (buffer), _("Unknown TAG value: %#lx"), tag);
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return buffer;
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}
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@ -2238,6 +2241,12 @@ read_and_display_attr_value (unsigned long attribute,
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case DW_ATE_edited: printf ("(edited)"); break;
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case DW_ATE_signed_fixed: printf ("(signed_fixed)"); break;
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case DW_ATE_unsigned_fixed: printf ("(unsigned_fixed)"); break;
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/* DWARF 4 values: */
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case DW_ATE_UTF: printf ("(unicode string)"); break;
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/* DWARF 5 values: */
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case DW_ATE_UCS: printf ("(UCS)"); break;
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case DW_ATE_ASCII: printf ("(ASCII)"); break;
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/* HP extensions: */
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case DW_ATE_HP_float80: printf ("(HP_float80)"); break;
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case DW_ATE_HP_complex_float80: printf ("(HP_complex_float80)"); break;
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@ -2246,8 +2255,6 @@ read_and_display_attr_value (unsigned long attribute,
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case DW_ATE_HP_floathpintel: printf ("(HP_floathpintel)"); break;
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case DW_ATE_HP_imaginary_float80: printf ("(HP_imaginary_float80)"); break;
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case DW_ATE_HP_imaginary_float128: printf ("(HP_imaginary_float128)"); break;
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/* DWARF 4 values: */
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case DW_ATE_UTF: printf ("(unicode string)"); break;
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default:
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if (uvalue >= DW_ATE_lo_user
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@ -2283,6 +2290,22 @@ read_and_display_attr_value (unsigned long attribute,
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}
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break;
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case DW_AT_endianity:
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printf ("\t");
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switch (uvalue)
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{
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case DW_END_default: printf ("(default)"); break;
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case DW_END_big: printf ("(big)"); break;
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case DW_END_little: printf ("(little)"); break;
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default:
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if (uvalue >= DW_END_lo_user && uvalue <= DW_END_hi_user)
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printf (_("(user specified)"));
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else
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printf (_("(unknown endianity)"));
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break;
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}
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break;
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case DW_AT_virtuality:
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printf ("\t");
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switch (uvalue)
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@ -2313,6 +2336,10 @@ read_and_display_attr_value (unsigned long attribute,
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case DW_CC_normal: printf ("(normal)"); break;
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case DW_CC_program: printf ("(program)"); break;
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case DW_CC_nocall: printf ("(nocall)"); break;
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case DW_CC_pass_by_reference: printf ("(pass by ref)"); break;
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case DW_CC_pass_by_value: printf ("(pass by value)"); break;
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case DW_CC_GNU_renesas_sh: printf ("(Rensas SH)"); break;
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case DW_CC_GNU_borland_fastcall_i386: printf ("(Borland fastcall i386)"); break;
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default:
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if (uvalue >= DW_CC_lo_user
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&& uvalue <= DW_CC_hi_user)
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@ -2326,12 +2353,47 @@ read_and_display_attr_value (unsigned long attribute,
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printf ("\t");
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switch (uvalue)
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{
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case 255:
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case -1: printf (_("(undefined)")); break;
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case 0: printf ("(row major)"); break;
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case 1: printf ("(column major)"); break;
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}
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break;
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case DW_AT_decimal_sign:
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printf ("\t");
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switch (uvalue)
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{
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case DW_DS_unsigned: printf (_("(unsigned)")); break;
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case DW_DS_leading_overpunch: printf (_("(leading overpunch)")); break;
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case DW_DS_trailing_overpunch: printf (_("(trailing overpunch)")); break;
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case DW_DS_leading_separate: printf (_("(leading separate)")); break;
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case DW_DS_trailing_separate: printf (_("(trailing separate)")); break;
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default: printf (_("(unrecognised)")); break;
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}
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break;
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case DW_AT_defaulted:
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printf ("\t");
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switch (uvalue)
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{
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case DW_DEFAULTED_no: printf (_("(no)")); break;
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case DW_DEFAULTED_in_class: printf (_("(in class)")); break;
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case DW_DEFAULTED_out_of_class: printf (_("(out of class)")); break;
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default: printf (_("(unrecognised)")); break;
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}
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break;
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case DW_AT_discr_list:
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printf ("\t");
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switch (uvalue)
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{
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case DW_DSC_label: printf (_("(label)")); break;
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case DW_DSC_range: printf (_("(range)")); break;
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default: printf (_("(unrecognised)")); break;
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}
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break;
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case DW_AT_frame_base:
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have_frame_base = 1;
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/* Fall through. */
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@ -0,0 +1,133 @@
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/* Copyright (C) 2017 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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/* This file is intended to check the encoding and decoding of DWARF attributes.
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Currently only numeric attributes are tested, but this file should be extended
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to cover other types of attribute as well. */
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.file "dwarf-attributes.S"
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.section .debug_info,"",%progbits
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.4byte .Ldebug_info_end - .Ldebug_info_start /* Length of Compilation Unit Info. */
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.Ldebug_info_start:
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.2byte 0x5 /* DWARF version number. */
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.byte 0x1 /* DW_UT_compile. */
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.byte 0x4 /* Pointer Size (in bytes). */
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.4byte .Ldebug_abbrevs /* Offset Into Abbrev. Section. */
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/* Start of DIE 0xc. */
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.uleb128 0x1 /* Using abbrev #1 */
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.byte 1 /* Ordering: column major. */
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.2byte 1 /* Language: C89. */
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.byte 1 /* Visibility: local. */
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.byte 1 /* Inline: inlined. */
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.byte 1 /* Accessibility: public. */
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.byte 1 /* Calling convention: normal. */
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.byte 1 /* Discriminate list: range. */
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.byte 1 /* Encoding: address. */
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.byte 1 /* Identifier case: up. */
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.byte 1 /* Virtuality: virtual. */
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.byte 1 /* Decimal sign: unsigned. */
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.byte 1 /* Endianity: big. */
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.byte 1 /* Defaulted: in class. */
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.uleb128 0x1 /* Using abbrev #1 */
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.byte 0 /* Ordering: row major */
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.2byte 0x0016 /* Language: Go. */
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.byte 2 /* Visibility: exported. */
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.byte 0 /* Inline: not. */
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.byte 2 /* Accessibility: protected. */
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.byte 5 /* Calling convention: pass by value. */
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.byte 0 /* Discriminate list: label. */
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.byte 0x12 /* Encoding: ASCII. */
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.byte 0 /* Identifier case: sensitive. */
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.byte 0 /* Virtuality: none. */
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.byte 2 /* Decimal sign: leading overpunch. */
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.byte 0 /* Endianity: default. */
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.byte 0 /* Defaulted: no. */
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.uleb128 0x1 /* Using abbrev #1 */
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.byte -1 /* Ordering: undefined. */
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.2byte 0x8001 /* Language: MIPS Assembler. */
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.byte 3 /* Visibility: qualified. */
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.byte 3 /* Inline: declared. */
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.byte 3 /* Accessibility: private. */
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.byte 0x40 /* Calling convention: Renesas SH. */
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.byte 1 /* Discriminate list: range. */
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.byte 0x81 /* Encoding: user specified. */
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.byte 3 /* Identifier case: insensitive. */
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.byte 2 /* Virtuality: pure. */
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.byte 5 /* Decimal sign: trailing separate. */
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.byte 0x50 /* Endianity: user specified. */
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.byte 2 /* Defaulted: out of class. */
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.byte 0 /* End of children of DIE 0xc. */
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.Ldebug_info_end:
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.section .debug_abbrev,"",%progbits
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.Ldebug_abbrevs:
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.uleb128 0x1 /* (abbrev code) */
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.uleb128 0x5555 /* (TAG: DW_TAG_lo_user + 0x1555) */
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.byte 0 /* DW_children_no */
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/* Attributes to be tested. Sorted by attribute value. */
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.uleb128 0x9 /* (DW_AT_ordering) */
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.uleb128 0x0b /* (DW_FORM_data1) */
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.uleb128 0x13 /* (DW_AT_language) */
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.uleb128 0x05 /* (DW_FORM_data2) */
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.uleb128 0x17 /* (DW_AT_visibility) */
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.uleb128 0x0b /* (DW_FORM_data1) */
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.uleb128 0x20 /* (DW_AT_inline) */
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.uleb128 0x0b /* (DW_FORM_data1) */
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.uleb128 0x32 /* (DW_AT_accessibility) */
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.uleb128 0x0b /* (DW_FORM_data1) */
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.uleb128 0x36 /* (DW_AT_calling_convention) */
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.uleb128 0x0b /* (DW_FORM_data1) */
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.uleb128 0x3d /* (DW_AT_discr_lists) */
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.uleb128 0x0b /* (DW_FORM_data1) */
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.uleb128 0x3e /* (DW_AT_encoding) */
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.uleb128 0x0b /* (DW_FORM_data1) */
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.uleb128 0x42 /* (DW_AT_identifier_case) */
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.uleb128 0x0b /* (DW_FORM_data1) */
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.uleb128 0x4c /* (DW_AT_virtuality) */
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.uleb128 0x0b /* (DW_FORM_data1) */
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.uleb128 0x5e /* (DW_AT_decimal_sign) */
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.uleb128 0x0b /* (DW_FORM_data1) */
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.uleb128 0x65 /* (DW_AT_endianity) */
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.uleb128 0x0b /* (DW_FORM_data1) */
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.uleb128 0x8b /* (DW_AT_defaulted) */
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.uleb128 0x0b /* (DW_FORM_data1) */
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.byte 0 /* End of abbreviation. */
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.byte 0
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.byte 0 /* End of abbreviations. */
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@ -0,0 +1,49 @@
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Contents of the .debug_info section:
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Compilation Unit @ offset 0x0:
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Length: 0x36 \(32-bit\)
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Version: 5
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Abbrev Offset: 0x0
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Pointer Size: 4
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<0><c>: Abbrev Number: 1 \(User TAG value: 0x5555\)
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<d> DW_AT_ordering : 1 \(column major\)
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<e> DW_AT_language : 1 \(ANSI C\)
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<10> DW_AT_visibility : 1 \(local\)
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<11> DW_AT_inline : 1 \(inlined\)
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<12> DW_AT_accessibility: 1 \(public\)
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<13> DW_AT_calling_convention: 1 \(normal\)
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<14> DW_AT_discr_list : 1 \(range\)
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<15> DW_AT_encoding : 1 \(machine address\)
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<16> DW_AT_identifier_case: 1 \(up_case\)
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<17> DW_AT_virtuality : 1 \(virtual\)
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<18> DW_AT_decimal_sign: 1 \(unsigned\)
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<19> DW_AT_endianity : 1 \(big\)
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<1a> DW_AT_defaulted : 1 \(in class\)
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<0><1b>: Abbrev Number: 1 \(User TAG value: 0x5555\)
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<1c> DW_AT_ordering : 0 \(row major\)
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<1d> DW_AT_language : 22 \(Go\)
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<1f> DW_AT_visibility : 2 \(exported\)
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<20> DW_AT_inline : 0 \(not inlined\)
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<21> DW_AT_accessibility: 2 \(protected\)
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<22> DW_AT_calling_convention: 5 \(pass by value\)
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<23> DW_AT_discr_list : 0 \(label\)
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<24> DW_AT_encoding : 18 \(ASCII\)
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<25> DW_AT_identifier_case: 0 \(case_sensitive\)
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<26> DW_AT_virtuality : 0 \(none\)
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<27> DW_AT_decimal_sign: 2 \(leading overpunch\)
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<28> DW_AT_endianity : 0 \(default\)
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<29> DW_AT_defaulted : 0 \(no\)
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<0><2a>: Abbrev Number: 1 \(User TAG value: 0x5555\)
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<2b> DW_AT_ordering : 255 \(undefined\)
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<2c> DW_AT_language : 32769 \(MIPS assembler\)
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<2e> DW_AT_visibility : 3 \(qualified\)
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<2f> DW_AT_inline : 3 \(declared as inline and inlined\)
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<30> DW_AT_accessibility: 3 \(private\)
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<31> DW_AT_calling_convention: 64 \(Rensas SH\)
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<32> DW_AT_discr_list : 1 \(range\)
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<33> DW_AT_encoding : 129 \(HP_complex_float80\)
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<34> DW_AT_identifier_case: 3 \(case_insensitive\)
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<35> DW_AT_virtuality : 2 \(pure_virtual\)
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<36> DW_AT_decimal_sign: 5 \(trailing separate\)
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<37> DW_AT_endianity : 80 \(user specified\)
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<38> DW_AT_defaulted : 2 \(out of class\)
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@ -420,14 +420,15 @@ if {![binutils_assemble $srcdir/$subdir/z.s tmpdir/z.o]} then {
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readelf_test {--decompress --hex-dump .debug_loc} $tempfile readelf.z {}
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}
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# Skip the next test for the RISCV architectures because they do not
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# support .ULEB128 pseudo-ops with non-constant values.
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# Skip the next test for the RISCV architectures because they
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# do not support .ULEB128 pseudo-ops with non-constant values.
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if ![istarget "riscv*-*-*"] then {
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set hpux ""
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if [istarget "hppa*64*-*-hpux*"] {
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set hpux "--defsym HPUX=1"
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}
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# Assemble the DWARF-5 test file.
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if {![binutils_assemble_flags $srcdir/$subdir/dw5.S tmpdir/dw5.o $hpux]} then {
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unresolved "readelf -wiaoRlL dw5 (failed to assemble)"
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||||
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@ -447,3 +448,21 @@ if ![istarget "riscv*-*-*"] then {
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|||
readelf_test -wiaoRlL $tempfile dw5.W { nds32*-elf }
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}
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||||
}
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||||
# Assemble the DWARF-5 attributes test file.
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if {![binutils_assemble_flags $srcdir/$subdir/dwarf-attributes.S tmpdir/dwarf-attributes.o ""]} then {
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unresolved "readelf -wi dwarf-attributes (failed to assemble)"
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||||
} else {
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||||
# Download it.
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if ![is_remote host] {
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set tempfile tmpdir/dwarf-attributes.o
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||||
} else {
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set tempfile [remote_download host tmpdir/dwarf-attributes.o]
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||||
}
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||||
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||||
# First, determine the size, so specific output matchers can be used.
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readelf_find_size $tempfile
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||||
# Make sure that readelf can decode the contents.
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||||
readelf_test -wi $tempfile dwarf-attributes.W {}
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||||
}
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||||
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|||
Loading…
Reference in New Issue