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-rw-r--r--gcc/toplev.c23
1 files changed, 20 insertions, 3 deletions
diff --git a/gcc/toplev.c b/gcc/toplev.c
index 878cdca..a7e856b 100644
--- a/gcc/toplev.c
+++ b/gcc/toplev.c
@@ -685,12 +685,15 @@ int flag_shared_data;
int flag_delayed_branch;
/* Nonzero if we are compiling pure (sharable) code.
- Value is 1 if we are doing reasonable (i.e. simple
- offset into offset table) pic. Value is 2 if we can
- only perform register offsets. */
+ Value is 1 if we are doing "small" pic; value is 2 if we're doing
+ "large" pic. */
int flag_pic;
+/* Set to the default thread-local storage (tls) model to use. */
+
+enum tls_model flag_tls_default;
+
/* Nonzero means generate extra code for exception handling and enable
exception handling. */
@@ -3547,6 +3550,7 @@ display_help ()
printf (_(" -finline-limit=<number> Limits the size of inlined functions to <number>\n"));
printf (_(" -fmessage-length=<number> Limits diagnostics messages lengths to <number> characters per line. 0 suppresses line-wrapping\n"));
printf (_(" -fdiagnostics-show-location=[once | every-line] Indicates how often source location information should be emitted, as prefix, at the beginning of diagnostics when line-wrapping\n"));
+ printf (_(" -ftls-model=[global-dynamic | local-dynamic | initial-exec | local-exec] Indicates the default thread-local storage code generation model\n"));
for (i = ARRAY_SIZE (f_options); i--;)
{
@@ -3825,6 +3829,19 @@ decode_f_option (arg)
MAX_INLINE_INSNS);
set_param_value ("max-inline-insns", val);
}
+ else if ((option_value = skip_leading_substring (arg, "tls-model=")))
+ {
+ if (strcmp (option_value, "global-dynamic") == 0)
+ flag_tls_default = TLS_MODEL_GLOBAL_DYNAMIC;
+ else if (strcmp (option_value, "local-dynamic") == 0)
+ flag_tls_default = TLS_MODEL_LOCAL_DYNAMIC;
+ else if (strcmp (option_value, "initial-exec") == 0)
+ flag_tls_default = TLS_MODEL_INITIAL_EXEC;
+ else if (strcmp (option_value, "local-exec") == 0)
+ flag_tls_default = TLS_MODEL_LOCAL_EXEC;
+ else
+ warning ("`%s': unknown tls-model option", arg - 2);
+ }
#ifdef INSN_SCHEDULING
else if ((option_value = skip_leading_substring (arg, "sched-verbose=")))
fix_sched_param ("verbose", option_value);