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PR binutils/1568 

* config/obj-coff.c (obj_coff_section): Set readonly flag with the 'x'
attribute.  Remember the actions of the 'w' and 'n' attributes and do not
allow the 'x','s' or 'd' attributes to change them.
This commit is contained in:
Nick Clifton 2005-11-07 17:57:00 +00:00
parent 718c0ded1f
commit 422fee64f8
2 changed files with 68 additions and 18 deletions
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7
gas/ChangeLog
View File

@ -1,3 +1,10 @@
2005-11-07 Nick Clifton <nickc@redhat.com>
PR binutils/1568
* config/obj-coff.c (obj_coff_section): Set readonly flag with the
'x' attribute. Remember the actions of the 'w' and 'n' attributes
and do not allow the 'x','s' or 'd' attributes to change them.
2005-11-07 John Levon <levon@movementarian.org>
* config/tc-i386.h (tc_comment_chars): Define.

79
gas/config/obj-coff.c
View File

@ -1522,38 +1522,81 @@ obj_coff_section (int ignore ATTRIBUTE_UNUSED)
exp = get_absolute_expression ();
else
{
++input_line_pointer;
while (*input_line_pointer != '"'
&& ! is_end_of_line[(unsigned char) *input_line_pointer])
unsigned char attr;
int readonly_removed = 0;
int load_removed = 0;
while (attr = *++input_line_pointer,
attr != '"'
&& ! is_end_of_line[attr])
{
switch (*input_line_pointer)
switch (attr)
{
case 'b': flags |= SEC_ALLOC; flags &=~ SEC_LOAD; break;
case 'n': flags &=~ SEC_LOAD; flags |= SEC_NEVER_LOAD; break;
case 'b':
/* Uninitialised data section. */
flags |= SEC_ALLOC;
flags &=~ SEC_LOAD;
break;
case 's': flags |= SEC_COFF_SHARED; /* Fall through. */
case 'd': flags |= SEC_DATA | SEC_LOAD; /* Fall through. */
case 'w': flags &=~ SEC_READONLY; break;
case 'n':
/* Section not loaded. */
flags &=~ SEC_LOAD;
flags |= SEC_NEVER_LOAD;
load_removed = 1;
break;
case 'a': break; /* For compatibility with ELF. */
case 'x': flags |= SEC_CODE | SEC_LOAD; break;
case 'r': flags |= SEC_DATA | SEC_LOAD | SEC_READONLY; break;
case 's':
/* Shared section. */
flags |= SEC_COFF_SHARED;
/* Fall through. */
case 'd':
/* Data section. */
flags |= SEC_DATA;
if (! load_removed)
flags |= SEC_LOAD;
flags &=~ SEC_READONLY;
break;
case 'w':
/* Writable section. */
flags &=~ SEC_READONLY;
readonly_removed = 1;
break;
case 'a':
/* Ignore. Here for compatibility with ELF. */
break;
case 'r': /* Read-only section. Implies a data section. */
readonly_removed = 0;
/* Fall through. */
case 'x': /* Executable section. */
/* If we are setting the 'x' attribute or if the 'r'
attribute is being used to restore the readonly status
of a code section (eg "wxr") then set the SEC_CODE flag,
otherwise set the SEC_DATA flag. */
flags |= (attr == 'x' || (flags & SEC_CODE) ? SEC_CODE : SEC_DATA);
if (! load_removed)
flags |= SEC_LOAD;
/* Note - the READONLY flag is set here, even for the 'x'
attrbiute in order to be compatible with the MSVC
linker. */
if (! readonly_removed)
flags |= SEC_READONLY;
break;
case 'i': /* STYP_INFO */
case 'l': /* STYP_LIB */
case 'o': /* STYP_OVER */
as_warn (_("unsupported section attribute '%c'"),
*input_line_pointer);
as_warn (_("unsupported section attribute '%c'"), attr);
break;
default:
as_warn (_("unknown section attribute '%c'"),
*input_line_pointer);
as_warn (_("unknown section attribute '%c'"), attr);
break;
}
++input_line_pointer;
}
if (*input_line_pointer == '"')
if (attr == '"')
++input_line_pointer;
}
}