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Display more information when decoding DW_AT_endianity, DW_AT_decimal_sign, DW_AT_defaulted and DW_AT_discr_list DWARF attributes.

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* 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
2017-10-11 12:02:51 +01:00
parent 7fa29be949
commit 04914e3707
5 changed files with 283 additions and 6 deletions
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70
binutils/dwarf.c
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@@ -963,13 +963,16 @@ process_abbrev_section (unsigned char *start, unsigned char *end)
static const char *
get_TAG_name (unsigned long tag)
{
const char *name = get_DW_TAG_name ((unsigned int)tag);
const char *name = get_DW_TAG_name ((unsigned int) tag);
if (name == NULL)
{
static char buffer[100];
snprintf (buffer, sizeof (buffer), _("Unknown TAG value: %lx"), tag);
if (tag >= DW_TAG_lo_user && tag <= DW_TAG_hi_user)
snprintf (buffer, sizeof (buffer), _("User TAG value: %#lx"), tag);
else
snprintf (buffer, sizeof (buffer), _("Unknown TAG value: %#lx"), tag);
return buffer;
}
@@ -2238,6 +2241,12 @@ read_and_display_attr_value (unsigned long attribute,
case DW_ATE_edited: printf ("(edited)"); break;
case DW_ATE_signed_fixed: printf ("(signed_fixed)"); break;
case DW_ATE_unsigned_fixed: printf ("(unsigned_fixed)"); break;
/* DWARF 4 values: */
case DW_ATE_UTF: printf ("(unicode string)"); break;
/* DWARF 5 values: */
case DW_ATE_UCS: printf ("(UCS)"); break;
case DW_ATE_ASCII: printf ("(ASCII)"); break;
/* HP extensions: */
case DW_ATE_HP_float80: printf ("(HP_float80)"); break;
case DW_ATE_HP_complex_float80: printf ("(HP_complex_float80)"); break;
@@ -2246,8 +2255,6 @@ read_and_display_attr_value (unsigned long attribute,
case DW_ATE_HP_floathpintel: printf ("(HP_floathpintel)"); break;
case DW_ATE_HP_imaginary_float80: printf ("(HP_imaginary_float80)"); break;
case DW_ATE_HP_imaginary_float128: printf ("(HP_imaginary_float128)"); break;
/* DWARF 4 values: */
case DW_ATE_UTF: printf ("(unicode string)"); break;
default:
if (uvalue >= DW_ATE_lo_user
@@ -2283,6 +2290,22 @@ read_and_display_attr_value (unsigned long attribute,
}
break;
case DW_AT_endianity:
printf ("\t");
switch (uvalue)
{
case DW_END_default: printf ("(default)"); break;
case DW_END_big: printf ("(big)"); break;
case DW_END_little: printf ("(little)"); break;
default:
if (uvalue >= DW_END_lo_user && uvalue <= DW_END_hi_user)
printf (_("(user specified)"));
else
printf (_("(unknown endianity)"));
break;
}
break;
case DW_AT_virtuality:
printf ("\t");
switch (uvalue)
@@ -2313,6 +2336,10 @@ read_and_display_attr_value (unsigned long attribute,
case DW_CC_normal: printf ("(normal)"); break;
case DW_CC_program: printf ("(program)"); break;
case DW_CC_nocall: printf ("(nocall)"); break;
case DW_CC_pass_by_reference: printf ("(pass by ref)"); break;
case DW_CC_pass_by_value: printf ("(pass by value)"); break;
case DW_CC_GNU_renesas_sh: printf ("(Rensas SH)"); break;
case DW_CC_GNU_borland_fastcall_i386: printf ("(Borland fastcall i386)"); break;
default:
if (uvalue >= DW_CC_lo_user
&& uvalue <= DW_CC_hi_user)
@@ -2326,12 +2353,47 @@ read_and_display_attr_value (unsigned long attribute,
printf ("\t");
switch (uvalue)
{
case 255:
case -1: printf (_("(undefined)")); break;
case 0: printf ("(row major)"); break;
case 1: printf ("(column major)"); break;
}
break;
case DW_AT_decimal_sign:
printf ("\t");
switch (uvalue)
{
case DW_DS_unsigned: printf (_("(unsigned)")); break;
case DW_DS_leading_overpunch: printf (_("(leading overpunch)")); break;
case DW_DS_trailing_overpunch: printf (_("(trailing overpunch)")); break;
case DW_DS_leading_separate: printf (_("(leading separate)")); break;
case DW_DS_trailing_separate: printf (_("(trailing separate)")); break;
default: printf (_("(unrecognised)")); break;
}
break;
case DW_AT_defaulted:
printf ("\t");
switch (uvalue)
{
case DW_DEFAULTED_no: printf (_("(no)")); break;
case DW_DEFAULTED_in_class: printf (_("(in class)")); break;
case DW_DEFAULTED_out_of_class: printf (_("(out of class)")); break;
default: printf (_("(unrecognised)")); break;
}
break;
case DW_AT_discr_list:
printf ("\t");
switch (uvalue)
{
case DW_DSC_label: printf (_("(label)")); break;
case DW_DSC_range: printf (_("(range)")); break;
default: printf (_("(unrecognised)")); break;
}
break;
case DW_AT_frame_base:
have_frame_base = 1;
/* Fall through. */