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(make_decl_rtl,assemble_variable): Allow named sections for

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uninitialized variables.

From-SVN: r13053
This commit is contained in:
Richard Kenner 1996-10-28 14:11:15 -05:00
parent 5507b94b23
commit 0bcc6fc755
1 changed files with 3 additions and 13 deletions
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16
gcc/varasm.c
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@ -706,23 +706,13 @@ make_decl_rtl (decl, asmspec, top_level)
globalize_reg (reg_number + --nregs);
}
}
/* Specifying a section attribute on an uninitialized variable does not
(and cannot) cause it to be put in the given section. The linker
can only put initialized objects in specific sections, everything
else goes in bss for the linker to sort out later (otherwise the
linker would give a duplicate definition error for each compilation
unit that behaved thusly). So warn the user. */
/* Specifying a section attribute on a variable forces it into a
non-.bss section, and thus it cannot be common. */
else if (TREE_CODE (decl) == VAR_DECL
&& DECL_SECTION_NAME (decl) != NULL_TREE
&& DECL_INITIAL (decl) == NULL_TREE
&& DECL_COMMON (decl))
{
warning_with_decl (decl,
"section attribute ignored for uninitialized variable `%s'");
/* Remove the section name so subsequent declarations won't see it.
We are ignoring it, remember. */
DECL_SECTION_NAME (decl) = NULL_TREE;
}
DECL_COMMON (decl) = 0;
/* Now handle ordinary static variables and functions (in memory).
Also handle vars declared register invalidly. */