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* readelf.c (print_symbol): Add code to display non-printing characters.

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This commit is contained in:
Nick Clifton 2008-05-01 14:34:51 +00:00
parent cfc0146143
commit 961c521ff9
2 changed files with 79 additions and 8 deletions
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5
binutils/ChangeLog
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@ -1,3 +1,8 @@
2008-05-01 Nick Clifton <nickc@redhat.com>
* readelf.c (print_symbol): Add code to display non-printing
characters.
2008-04-30 John Heidemann <johnh@isi.edu>
* doc/binutils.texi (strings): Add "unicode" to the documentation

82
binutils/readelf.c
View File

@ -542,21 +542,87 @@ print_vma (bfd_vma vma, print_mode mode)
return 0;
}
/* Display a symbol on stdout. If do_wide is not true then
format the symbol to be at most WIDTH characters,
truncating as necessary. If WIDTH is negative then
format the string to be exactly - WIDTH characters,
truncating or padding as necessary. */
/* Display a symbol on stdout. Handles the display of
non-printing characters.
If DO_WIDE is not true then format the symbol to be
at most WIDTH characters, truncating as necessary.
If WIDTH is negative then format the string to be
exactly - WIDTH characters, truncating or padding
as necessary. */
static void
print_symbol (int width, const char *symbol)
{
const char * format_string;
const char * c;
if (do_wide)
printf ("%s", symbol);
{
format_string = "%.*s";
/* Set the width to a very large value. This simplifies the code below. */
width = INT_MAX;
}
else if (width < 0)
printf ("%-*.*s", width, width, symbol);
{
format_string = "%-*.*2s";
/* Keep the width positive. This also helps. */
width = - width;
}
else
printf ("%-.*s", width, symbol);
{
format_string = "%-.*s";
}
while (width)
{
int len;
c = symbol;
/* Look for non-printing symbols inside the symbol's name.
This test is triggered in particular by the names generated
by the assembler for local labels. */
while (ISPRINT (* c))
c++;
len = c - symbol;
if (len)
{
if (len > width)
len = width;
printf (format_string, len, symbol);
width -= len;
}
if (* c == 0 || width == 0)
break;
/* Now display the non-printing character, if
there is room left in which to dipslay it. */
if (*c < 32)
{
if (width < 2)
break;
printf ("^%c", *c + 0x40);
width -= 2;
}
else
{
if (width < 6)
break;
printf ("<0x%.2x>", *c);
width -= 6;
}
symbol = c + 1;
}
}
static void