* config/darwin-protos.h (darwin_assemble_visibility): Declare.
* config/darwin.c (darwin_assemble_visibility): Define. Warn for
anything other than VISIBILITY_DEFAULT and VISIBILITY_HIDDEN.
* config/darwin.h (TARGET_ASM_ASSEMBLE_VISIBILITY): Use
darwin_assemble_visibility instead of default.
From-SVN: r73430
+2003-11-10 Matt Austern <austern@apple.com>
+
+ * config/darwin-protos.h (darwin_assemble_visibility): Declare.
+ * config/darwin.c (darwin_assemble_visibility): Define. Warn for
+ anything other than VISIBILITY_DEFAULT and VISIBILITY_HIDDEN.
+ * config/darwin.h (TARGET_ASM_ASSEMBLE_VISIBILITY): Use
+ darwin_assemble_visibility instead of default.
+
2003-11-10 Waldek Hebisch <hebisch@math.uni.wroc.pl>
PR target/12865
extern void darwin_exception_section (void);
extern void darwin_eh_frame_section (void);
extern void darwin_globalize_label (FILE *, const char *);
+extern void darwin_assemble_visibility (tree, int);
extern void darwin_asm_output_dwarf_delta (FILE *, int, const char *,
const char *);
#include "ggc.h"
#include "langhooks.h"
#include "tm_p.h"
+#include "errors.h"
static int machopic_data_defined_p (const char *);
static void update_non_lazy_ptrs (const char *);
default_globalize_label (stream, name);
}
+/* Emit an assembler directive to set visibility for a symbol. The
+ only supported visibilities are VISIBILITY_DEFAULT and
+ VISIBILITY_HIDDEN; the latter corresponds to Darwin's "private
+ extern". There is no MACH-O equivalent of ELF's
+ VISIBILITY_INTERNAL or VISIBILITY_PROTECTED. */
+
+void
+darwin_assemble_visibility (tree decl, int vis)
+{
+ if (vis == VISIBILITY_DEFAULT)
+ ;
+ else if (vis == VISIBILITY_HIDDEN)
+ {
+ fputs ("\t.private_extern ", asm_out_file);
+ assemble_name (asm_out_file,
+ (IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl))));
+ fputs ("\n", asm_out_file);
+ }
+ else
+ warning ("internal and protected visibility attributes not supported"
+ "in this configuration; ignored");
+}
+
/* Output a difference of two labels that will be an assembly time
constant if the two labels are local. (.long lab1-lab2 will be
very different if lab1 is at the boundary between two sections; it
#define GLOBAL_ASM_OP ".globl "
#define TARGET_ASM_GLOBALIZE_LABEL darwin_globalize_label
+/* Emit an assembler directive to set visibility for a symbol. Used
+ to support visibility attribute and Darwin's private extern
+ feature. */
+#undef TARGET_ASM_ASSEMBLE_VISIBILITY
+#define TARGET_ASM_ASSEMBLE_VISIBILITY darwin_assemble_visibility
+
+
#undef ASM_GENERATE_INTERNAL_LABEL
#define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \
sprintf (LABEL, "*%s%ld", PREFIX, (long)(NUM))