/* Output variables, constants and external declarations, for GNU compiler.
Copyright (C) 1987, 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997,
- 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
+ 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
Free Software Foundation, Inc.
This file is part of GCC.
#include "cgraph.h"
#include "cfglayout.h"
#include "basic-block.h"
+#include "tree-iterator.h"
#ifdef XCOFF_DEBUGGING_INFO
#include "xcoffout.h" /* Needed for external data
/* A pool of constants that can be shared between functions. */
static GTY(()) struct rtx_constant_pool *shared_constant_pool;
+/* TLS emulation. */
+
+static GTY ((if_marked ("tree_map_marked_p"), param_is (struct tree_map)))
+ htab_t emutls_htab;
+static GTY (()) tree emutls_object_type;
+
+#ifndef NO_DOT_IN_LABEL
+# define EMUTLS_VAR_PREFIX "__emutls_v."
+# define EMUTLS_TMPL_PREFIX "__emutls_t."
+#elif !defined NO_DOLLAR_IN_LABEL
+# define EMUTLS_VAR_PREFIX "__emutls_v$"
+# define EMUTLS_TMPL_PREFIX "__emutls_t$"
+#else
+# define EMUTLS_VAR_PREFIX "__emutls_v_"
+# define EMUTLS_TMPL_PREFIX "__emutls_t_"
+#endif
+
+/* Create an identifier for the struct __emutls_object, given an identifier
+ of the DECL_ASSEMBLY_NAME of the original object. */
+
+static tree
+get_emutls_object_name (tree name)
+{
+ char *toname = alloca (strlen (IDENTIFIER_POINTER (name))
+ + sizeof (EMUTLS_VAR_PREFIX));
+ strcpy (toname, EMUTLS_VAR_PREFIX);
+ strcpy (toname + sizeof (EMUTLS_VAR_PREFIX) - 1, IDENTIFIER_POINTER (name));
+
+ return get_identifier (toname);
+}
+
+/* Create the structure for struct __emutls_object. This should match the
+ structure at the top of emutls.c, modulo the union there. */
+
+static tree
+get_emutls_object_type (void)
+{
+ tree type, type_name, field, next_field, word_type_node;
+
+ type = emutls_object_type;
+ if (type)
+ return type;
+
+ emutls_object_type = type = lang_hooks.types.make_type (RECORD_TYPE);
+ type_name = get_identifier ("__emutls_object");
+ type_name = build_decl (TYPE_DECL, type_name, type);
+ TYPE_NAME (type) = type_name;
+
+ field = build_decl (FIELD_DECL, get_identifier ("__templ"), ptr_type_node);
+ DECL_CONTEXT (field) = type;
+ next_field = field;
+
+ field = build_decl (FIELD_DECL, get_identifier ("__offset"), ptr_type_node);
+ DECL_CONTEXT (field) = type;
+ TREE_CHAIN (field) = next_field;
+ next_field = field;
+
+ word_type_node = lang_hooks.types.type_for_mode (word_mode, 1);
+ field = build_decl (FIELD_DECL, get_identifier ("__align"), word_type_node);
+ DECL_CONTEXT (field) = type;
+ TREE_CHAIN (field) = next_field;
+ next_field = field;
+
+ field = build_decl (FIELD_DECL, get_identifier ("__size"), word_type_node);
+ DECL_CONTEXT (field) = type;
+ TREE_CHAIN (field) = next_field;
+
+ TYPE_FIELDS (type) = field;
+ layout_type (type);
+
+ return type;
+}
+
+/* Create a read-only variable like DECL, with the same DECL_INITIAL.
+ This will be used for initializing the emulated tls data area. */
+
+static tree
+get_emutls_init_templ_addr (tree decl)
+{
+ tree name, to;
+ char *toname;
+
+ if (!DECL_INITIAL (decl))
+ return null_pointer_node;
+
+ name = DECL_ASSEMBLER_NAME (decl);
+ toname = alloca (strlen (IDENTIFIER_POINTER (name))
+ + sizeof (EMUTLS_TMPL_PREFIX));
+ strcpy (toname, EMUTLS_TMPL_PREFIX);
+ strcpy (toname + sizeof (EMUTLS_TMPL_PREFIX) - 1, IDENTIFIER_POINTER (name));
+ name = get_identifier (toname);
+
+ to = build_decl (VAR_DECL, name, TREE_TYPE (decl));
+ SET_DECL_ASSEMBLER_NAME (to, DECL_NAME (to));
+
+ DECL_ARTIFICIAL (to) = 1;
+ TREE_USED (to) = TREE_USED (decl);
+ TREE_READONLY (to) = 1;
+ DECL_IGNORED_P (to) = 1;
+ DECL_CONTEXT (to) = DECL_CONTEXT (decl);
+ DECL_WEAK (to) = DECL_WEAK (decl);
+ if (DECL_ONE_ONLY (decl))
+ {
+ make_decl_one_only (to);
+ TREE_STATIC (to) = TREE_STATIC (decl);
+ TREE_PUBLIC (to) = TREE_PUBLIC (decl);
+ DECL_VISIBILITY (to) = DECL_VISIBILITY (decl);
+ }
+ else
+ TREE_STATIC (to) = 1;
+
+ DECL_INITIAL (to) = DECL_INITIAL (decl);
+ DECL_INITIAL (decl) = NULL;
+
+ varpool_finalize_decl (to);
+ return build_fold_addr_expr (to);
+}
+
+/* When emulating tls, we use a control structure for use by the runtime.
+ Create and return this structure. */
+
+tree
+emutls_decl (tree decl)
+{
+ tree name, to;
+ struct tree_map *h, in;
+ void **loc;
+
+ if (targetm.have_tls || decl == NULL || decl == error_mark_node
+ || TREE_CODE (decl) != VAR_DECL || ! DECL_THREAD_LOCAL_P (decl))
+ return decl;
+
+ /* Look up the object in the hash; return the control structure if
+ it has already been created. */
+ if (! emutls_htab)
+ emutls_htab = htab_create_ggc (512, tree_map_hash, tree_map_eq, 0);
+
+ name = DECL_ASSEMBLER_NAME (decl);
+
+ /* Note that we use the hash of the decl's name, rather than a hash
+ of the decl's pointer. In emutls_finish we iterate through the
+ hash table, and we want this traversal to be predictable. */
+ in.hash = htab_hash_string (IDENTIFIER_POINTER (name));
+ in.base.from = decl;
+ loc = htab_find_slot_with_hash (emutls_htab, &in, in.hash, INSERT);
+ h = *loc;
+ if (h != NULL)
+ to = h->to;
+ else
+ {
+ to = build_decl (VAR_DECL, get_emutls_object_name (name),
+ get_emutls_object_type ());
+
+ h = ggc_alloc (sizeof (struct tree_map));
+ h->hash = in.hash;
+ h->base.from = decl;
+ h->to = to;
+ *(struct tree_map **) loc = h;
+
+ DECL_ARTIFICIAL (to) = 1;
+ DECL_IGNORED_P (to) = 1;
+ TREE_READONLY (to) = 0;
+
+ SET_DECL_ASSEMBLER_NAME (to, DECL_NAME (to));
+ if (DECL_ONE_ONLY (decl))
+ make_decl_one_only (to);
+ DECL_CONTEXT (to) = DECL_CONTEXT (decl);
+ }
+
+ /* Note that these fields may need to be updated from time to time from
+ the original decl. Consider:
+ extern __thread int i;
+ int foo() { return i; }
+ __thread int i = 1;
+ in which I goes from external to locally defined and initialized. */
+
+ TREE_STATIC (to) = TREE_STATIC (decl);
+ TREE_USED (to) = TREE_USED (decl);
+ TREE_PUBLIC (to) = TREE_PUBLIC (decl);
+ DECL_EXTERNAL (to) = DECL_EXTERNAL (decl);
+ DECL_COMMON (to) = DECL_COMMON (decl);
+ DECL_WEAK (to) = DECL_WEAK (decl);
+ DECL_VISIBILITY (to) = DECL_VISIBILITY (decl);
+
+ return to;
+}
+
+static int
+emutls_common_1 (void **loc, void *xstmts)
+{
+ struct tree_map *h = *(struct tree_map **) loc;
+ tree args, x, *pstmts = (tree *) xstmts;
+ tree word_type_node;
+
+ if (! DECL_COMMON (h->base.from)
+ || (DECL_INITIAL (h->base.from)
+ && DECL_INITIAL (h->base.from) != error_mark_node))
+ return 1;
+
+ word_type_node = lang_hooks.types.type_for_mode (word_mode, 1);
+
+ /* The idea was to call get_emutls_init_templ_addr here, but if we
+ do this and there is an initializer, -fanchor_section loses,
+ because it would be too late to ensure the template is
+ output. */
+ x = null_pointer_node;
+ args = tree_cons (NULL, x, NULL);
+ x = build_int_cst (word_type_node, DECL_ALIGN_UNIT (h->base.from));
+ args = tree_cons (NULL, x, args);
+ x = fold_convert (word_type_node, DECL_SIZE_UNIT (h->base.from));
+ args = tree_cons (NULL, x, args);
+ x = build_fold_addr_expr (h->to);
+ args = tree_cons (NULL, x, args);
+
+ x = built_in_decls[BUILT_IN_EMUTLS_REGISTER_COMMON];
+ x = build_function_call_expr (x, args);
+
+ append_to_statement_list (x, pstmts);
+ return 1;
+}
+
+void
+emutls_finish (void)
+{
+ tree body = NULL_TREE;
+
+ if (emutls_htab == NULL)
+ return;
+
+ htab_traverse_noresize (emutls_htab, emutls_common_1, &body);
+ if (body == NULL_TREE)
+ return;
+
+ cgraph_build_static_cdtor ('I', body, DEFAULT_INIT_PRIORITY);
+}
+
/* Helper routines for maintaining section_htab. */
static int
unsigned HOST_WIDE_INT size ATTRIBUTE_UNUSED,
unsigned HOST_WIDE_INT rounded)
{
- targetm.asm_out.globalize_label (file, name);
+ gcc_assert (strcmp (XSTR (XEXP (DECL_RTL (decl), 0), 0), name) == 0);
+ targetm.asm_out.globalize_decl_name (file, decl);
switch_to_section (bss_section);
#ifdef ASM_DECLARE_OBJECT_NAME
last_assemble_variable_decl = decl;
if (DECL_INITIAL (decl) == decl)
return false;
+ /* If this decl is an alias, then we don't want to emit a definition. */
+ if (lookup_attribute ("alias", DECL_ATTRIBUTES (decl)))
+ return false;
+
return true;
}
if (flag_mudflap && TREE_CODE (decl) == VAR_DECL)
mudflap_enqueue_decl (decl);
}
-
-/* Make the rtl for variable VAR be volatile.
- Use this only for static variables. */
-
-void
-make_var_volatile (tree var)
-{
- gcc_assert (MEM_P (DECL_RTL (var)));
-
- MEM_VOLATILE_P (DECL_RTL (var)) = 1;
-}
\f
/* Output a string of literal assembler code
for an `asm' keyword used between functions. */
#endif
}
-void
-default_named_section_asm_out_destructor (rtx symbol, int priority)
+/* Write the address of the entity given by SYMBOL to SEC. */
+void
+assemble_addr_to_section (rtx symbol, section *sec)
+{
+ switch_to_section (sec);
+ assemble_align (POINTER_SIZE);
+ assemble_integer (symbol, POINTER_SIZE / BITS_PER_UNIT, POINTER_SIZE, 1);
+}
+
+/* Return the numbered .ctors.N (if CONSTRUCTOR_P) or .dtors.N (if
+ not) section for PRIORITY. */
+section *
+get_cdtor_priority_section (int priority, bool constructor_p)
{
- const char *section = ".dtors";
char buf[16];
/* ??? This only works reliably with the GNU linker. */
+ sprintf (buf, "%s.%.5u",
+ constructor_p ? ".ctors" : ".dtors",
+ /* Invert the numbering so the linker puts us in the proper
+ order; constructors are run from right to left, and the
+ linker sorts in increasing order. */
+ MAX_INIT_PRIORITY - priority);
+ return get_section (buf, SECTION_WRITE, NULL);
+}
+
+void
+default_named_section_asm_out_destructor (rtx symbol, int priority)
+{
+ section *sec;
+
if (priority != DEFAULT_INIT_PRIORITY)
- {
- sprintf (buf, ".dtors.%.5u",
- /* Invert the numbering so the linker puts us in the proper
- order; constructors are run from right to left, and the
- linker sorts in increasing order. */
- MAX_INIT_PRIORITY - priority);
- section = buf;
- }
+ sec = get_cdtor_priority_section (priority,
+ /*constructor_p=*/false);
+ else
+ sec = get_section (".dtors", SECTION_WRITE, NULL);
- switch_to_section (get_section (section, SECTION_WRITE, NULL));
- assemble_align (POINTER_SIZE);
- assemble_integer (symbol, POINTER_SIZE / BITS_PER_UNIT, POINTER_SIZE, 1);
+ assemble_addr_to_section (symbol, sec);
}
#ifdef DTORS_SECTION_ASM_OP
default_dtor_section_asm_out_destructor (rtx symbol,
int priority ATTRIBUTE_UNUSED)
{
- switch_to_section (dtors_section);
- assemble_align (POINTER_SIZE);
- assemble_integer (symbol, POINTER_SIZE / BITS_PER_UNIT, POINTER_SIZE, 1);
+ assemble_addr_to_section (symbol, dtors_section);
}
#endif
void
default_named_section_asm_out_constructor (rtx symbol, int priority)
{
- const char *section = ".ctors";
- char buf[16];
+ section *sec;
- /* ??? This only works reliably with the GNU linker. */
if (priority != DEFAULT_INIT_PRIORITY)
- {
- sprintf (buf, ".ctors.%.5u",
- /* Invert the numbering so the linker puts us in the proper
- order; constructors are run from right to left, and the
- linker sorts in increasing order. */
- MAX_INIT_PRIORITY - priority);
- section = buf;
- }
+ sec = get_cdtor_priority_section (priority,
+ /*constructor_p=*/true);
+ else
+ sec = get_section (".ctors", SECTION_WRITE, NULL);
- switch_to_section (get_section (section, SECTION_WRITE, NULL));
- assemble_align (POINTER_SIZE);
- assemble_integer (symbol, POINTER_SIZE / BITS_PER_UNIT, POINTER_SIZE, 1);
+ assemble_addr_to_section (symbol, sec);
}
#ifdef CTORS_SECTION_ASM_OP
default_ctor_section_asm_out_constructor (rtx symbol,
int priority ATTRIBUTE_UNUSED)
{
- switch_to_section (ctors_section);
- assemble_align (POINTER_SIZE);
- assemble_integer (symbol, POINTER_SIZE / BITS_PER_UNIT, POINTER_SIZE, 1);
+ assemble_addr_to_section (symbol, ctors_section);
}
#endif
\f
/* We win when global object is found, but it is useful to know about weak
symbol as well so we can produce nicer unique names. */
- if (DECL_WEAK (decl) || DECL_ONE_ONLY (decl))
+ if (DECL_WEAK (decl) || DECL_ONE_ONLY (decl) || flag_shlib)
type = &weak_global_object_name;
if (!*type)
rtx decl_rtl, symbol;
section *sect;
+ if (! targetm.have_tls
+ && TREE_CODE (decl) == VAR_DECL
+ && DECL_THREAD_LOCAL_P (decl))
+ {
+ tree to = emutls_decl (decl);
+
+ /* If this variable is defined locally, then we need to initialize the
+ control structure with size and alignment information. We do this
+ at the last moment because tentative definitions can take a locally
+ defined but uninitialized variable and initialize it later, which
+ would result in incorrect contents. */
+ if (! DECL_EXTERNAL (to)
+ && (! DECL_COMMON (to)
+ || (DECL_INITIAL (decl)
+ && DECL_INITIAL (decl) != error_mark_node)))
+ {
+ VEC(constructor_elt,gc) *v = VEC_alloc (constructor_elt, gc, 4);
+ constructor_elt *elt;
+ tree type = TREE_TYPE (to);
+ tree field = TYPE_FIELDS (type);
+
+ elt = VEC_quick_push (constructor_elt, v, NULL);
+ elt->index = field;
+ elt->value = fold_convert (TREE_TYPE (field), DECL_SIZE_UNIT (decl));
+
+ elt = VEC_quick_push (constructor_elt, v, NULL);
+ field = TREE_CHAIN (field);
+ elt->index = field;
+ elt->value = build_int_cst (TREE_TYPE (field),
+ DECL_ALIGN_UNIT (decl));
+
+ elt = VEC_quick_push (constructor_elt, v, NULL);
+ field = TREE_CHAIN (field);
+ elt->index = field;
+ elt->value = null_pointer_node;
+
+ elt = VEC_quick_push (constructor_elt, v, NULL);
+ field = TREE_CHAIN (field);
+ elt->index = field;
+ elt->value = get_emutls_init_templ_addr (decl);
+
+ DECL_INITIAL (to) = build_constructor (type, v);
+
+ /* Make sure the template is marked as needed early enough.
+ Without this, if the variable is placed in a
+ section-anchored block, the template will only be marked
+ when it's too late. */
+ record_references_in_initializer (to);
+ }
+
+ decl = to;
+ }
+
if (lang_hooks.decls.prepare_assemble_variable)
lang_hooks.decls.prepare_assemble_variable (decl);
static void
globalize_decl (tree decl)
{
- const char *name = XSTR (XEXP (DECL_RTL (decl), 0), 0);
#if defined (ASM_WEAKEN_LABEL) || defined (ASM_WEAKEN_DECL)
if (DECL_WEAK (decl))
{
+ const char *name = XSTR (XEXP (DECL_RTL (decl), 0), 0);
tree *p, t;
#ifdef ASM_WEAKEN_DECL
return;
}
-#elif defined(ASM_MAKE_LABEL_LINKONCE)
- if (DECL_ONE_ONLY (decl))
- ASM_MAKE_LABEL_LINKONCE (asm_out_file, name);
#endif
- targetm.asm_out.globalize_label (asm_out_file, name);
+ targetm.asm_out.globalize_decl_name (asm_out_file, decl);
}
/* We have to be able to tell cgraph about the needed-ness of the target
{
ultimate_transparent_alias_target (&target);
+ if (!targetm.have_tls
+ && TREE_CODE (decl) == VAR_DECL
+ && DECL_THREAD_LOCAL_P (decl))
+ {
+ decl = emutls_decl (decl);
+ target = get_emutls_object_name (target);
+ }
+
if (!TREE_SYMBOL_REFERENCED (target))
weakref_targets = tree_cons (decl, target, weakref_targets);
return;
}
+ if (!targetm.have_tls
+ && TREE_CODE (decl) == VAR_DECL
+ && DECL_THREAD_LOCAL_P (decl))
+ {
+ decl = emutls_decl (decl);
+ target = get_emutls_object_name (target);
+ }
+
#ifdef ASM_OUTPUT_DEF
/* Make name accessible from other files, if appropriate. */
unsigned int
default_section_type_flags (tree decl, const char *name, int reloc)
{
- return default_section_type_flags_1 (decl, name, reloc, flag_pic);
-}
-
-unsigned int
-default_section_type_flags_1 (tree decl, const char *name, int reloc,
- int shlib)
-{
unsigned int flags;
if (decl && TREE_CODE (decl) == FUNCTION_DECL)
flags = SECTION_CODE;
- else if (decl && decl_readonly_section_1 (decl, reloc, shlib))
+ else if (decl && decl_readonly_section (decl, reloc))
flags = 0;
else if (current_function_decl
&& cfun
}
enum section_category
-categorize_decl_for_section (tree decl, int reloc, int shlib)
+categorize_decl_for_section (tree decl, int reloc)
{
enum section_category ret;
|| TREE_SIDE_EFFECTS (decl)
|| ! TREE_CONSTANT (DECL_INITIAL (decl)))
{
- if (shlib && (reloc & 2))
- ret = SECCAT_DATA_REL;
- else if (shlib && reloc)
- ret = SECCAT_DATA_REL_LOCAL;
+ /* Here the reloc_rw_mask is not testing whether the section should
+ be read-only or not, but whether the dynamic link will have to
+ do something. If so, we wish to segregate the data in order to
+ minimize cache misses inside the dynamic linker. */
+ if (reloc & targetm.asm_out.reloc_rw_mask ())
+ ret = reloc == 1 ? SECCAT_DATA_REL_LOCAL : SECCAT_DATA_REL;
else
ret = SECCAT_DATA;
}
- else if (shlib && (reloc & 2))
- ret = SECCAT_DATA_REL_RO;
- else if (shlib && reloc)
- ret = SECCAT_DATA_REL_RO_LOCAL;
+ else if (reloc & targetm.asm_out.reloc_rw_mask ())
+ ret = reloc == 1 ? SECCAT_DATA_REL_RO_LOCAL : SECCAT_DATA_REL_RO;
else if (reloc || flag_merge_constants < 2)
/* C and C++ don't allow different variables to share the same
location. -fmerge-all-constants allows even that (at the
}
else if (TREE_CODE (decl) == CONSTRUCTOR)
{
- if ((shlib && reloc)
+ if ((reloc & targetm.asm_out.reloc_rw_mask ())
|| TREE_SIDE_EFFECTS (decl)
|| ! TREE_CONSTANT (decl))
ret = SECCAT_DATA;
bool
decl_readonly_section (tree decl, int reloc)
{
- return decl_readonly_section_1 (decl, reloc, flag_pic);
-}
-
-bool
-decl_readonly_section_1 (tree decl, int reloc, int shlib)
-{
- switch (categorize_decl_for_section (decl, reloc, shlib))
+ switch (categorize_decl_for_section (decl, reloc))
{
case SECCAT_RODATA:
case SECCAT_RODATA_MERGE_STR:
default_elf_select_section (tree decl, int reloc,
unsigned HOST_WIDE_INT align)
{
- return default_elf_select_section_1 (decl, reloc, align, flag_pic);
-}
-
-section *
-default_elf_select_section_1 (tree decl, int reloc,
- unsigned HOST_WIDE_INT align, int shlib)
-{
const char *sname;
- switch (categorize_decl_for_section (decl, reloc, shlib))
+ switch (categorize_decl_for_section (decl, reloc))
{
case SECCAT_TEXT:
/* We're not supposed to be called on FUNCTION_DECLs. */
void
default_unique_section (tree decl, int reloc)
{
- default_unique_section_1 (decl, reloc, flag_pic);
-}
-
-void
-default_unique_section_1 (tree decl, int reloc, int shlib)
-{
/* We only need to use .gnu.linkonce if we don't have COMDAT groups. */
bool one_only = DECL_ONE_ONLY (decl) && !HAVE_COMDAT_GROUP;
const char *prefix, *name;
size_t nlen, plen;
char *string;
- switch (categorize_decl_for_section (decl, reloc, shlib))
+ switch (categorize_decl_for_section (decl, reloc))
{
case SECCAT_TEXT:
prefix = one_only ? ".gnu.linkonce.t." : ".text.";
DECL_SECTION_NAME (decl) = build_string (nlen + plen, string);
}
+/* Like compute_reloc_for_constant, except for an RTX. The return value
+ is a mask for which bit 1 indicates a global relocation, and bit 0
+ indicates a local relocation. */
+
+static int
+compute_reloc_for_rtx_1 (rtx *xp, void *data)
+{
+ int *preloc = data;
+ rtx x = *xp;
+
+ switch (GET_CODE (x))
+ {
+ case SYMBOL_REF:
+ *preloc |= SYMBOL_REF_LOCAL_P (x) ? 1 : 2;
+ break;
+ case LABEL_REF:
+ *preloc |= 1;
+ break;
+ default:
+ break;
+ }
+
+ return 0;
+}
+
+static int
+compute_reloc_for_rtx (rtx x)
+{
+ int reloc;
+
+ switch (GET_CODE (x))
+ {
+ case CONST:
+ case SYMBOL_REF:
+ case LABEL_REF:
+ reloc = 0;
+ for_each_rtx (&x, compute_reloc_for_rtx_1, &reloc);
+ return reloc;
+
+ default:
+ return 0;
+ }
+}
+
section *
default_select_rtx_section (enum machine_mode mode ATTRIBUTE_UNUSED,
rtx x,
unsigned HOST_WIDE_INT align ATTRIBUTE_UNUSED)
{
- if (flag_pic)
- switch (GET_CODE (x))
- {
- case CONST:
- case SYMBOL_REF:
- case LABEL_REF:
- return data_section;
-
- default:
- break;
- }
-
- return readonly_data_section;
+ if (compute_reloc_for_rtx (x) & targetm.asm_out.reloc_rw_mask ())
+ return data_section;
+ else
+ return readonly_data_section;
}
section *
default_elf_select_rtx_section (enum machine_mode mode, rtx x,
unsigned HOST_WIDE_INT align)
{
- /* ??? Handle small data here somehow. */
+ int reloc = compute_reloc_for_rtx (x);
- if (flag_pic)
- switch (GET_CODE (x))
- {
- case CONST:
- case SYMBOL_REF:
- return get_named_section (NULL, ".data.rel.ro", 3);
+ /* ??? Handle small data here somehow. */
- case LABEL_REF:
+ if (reloc & targetm.asm_out.reloc_rw_mask ())
+ {
+ if (reloc == 1)
return get_named_section (NULL, ".data.rel.ro.local", 1);
-
- default:
- break;
- }
+ else
+ return get_named_section (NULL, ".data.rel.ro", 3);
+ }
return mergeable_constant_section (mode, align, 0);
}
flags |= SYMBOL_FLAG_FUNCTION;
if (targetm.binds_local_p (decl))
flags |= SYMBOL_FLAG_LOCAL;
- if (TREE_CODE (decl) == VAR_DECL && DECL_THREAD_LOCAL_P (decl))
+ if (targetm.have_tls && TREE_CODE (decl) == VAR_DECL
+ && DECL_THREAD_LOCAL_P (decl))
flags |= DECL_TLS_MODEL (decl) << SYMBOL_FLAG_TLS_SHIFT;
else if (targetm.in_small_data_p (decl))
flags |= SYMBOL_FLAG_SMALL;
{
char buffer[100];
- sprintf (buffer, ". + " HOST_WIDE_INT_PRINT_DEC,
+ sprintf (buffer, "*. + " HOST_WIDE_INT_PRINT_DEC,
SYMBOL_REF_BLOCK_OFFSET (symbol));
ASM_OUTPUT_DEF (asm_out_file, XSTR (symbol, 0), buffer);
}
}
#endif /* GLOBAL_ASM_OP */
+/* Default function to output code that will globalize a declaration. */
+void
+default_globalize_decl_name (FILE * stream, tree decl)
+{
+ const char *name = XSTR (XEXP (DECL_RTL (decl), 0), 0);
+ targetm.asm_out.globalize_label (stream, name);
+}
+
/* Default function to output a label for unwind information. The
default is to do nothing. A target that needs nonlocal labels for
unwind information must provide its own function to do this. */
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