already defined.
* config/arm/elf.h (NEED_PLT_GOT): Define to flag_pic.
* config/arm/arm.md (call_symbol, call_value_symbol et al.): If
NEED_PLT_GOT is true, add explicit "(PLT)" to generated branches.
* config/arm/arm.c (output_func_epilogue,
output_return_instruction): Likewise for calls to abort.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@26839
138bc75d-0d04-0410-961f-
82ee72b054a4
+Sat May 8 06:23:21 1999 Philip Blundell <pb@nexus.co.uk>
+
+ Based on patch by Scott Bambrough:
+ * config/arm/arm.h (NEED_PLT_GOT): New macro. Set to 0 if not
+ already defined.
+ * config/arm/elf.h (NEED_PLT_GOT): Define to flag_pic.
+ * config/arm/arm.md (call_symbol, call_value_symbol et al.): If
+ NEED_PLT_GOT is true, add explicit "(PLT)" to generated branches.
+ * config/arm/arm.c (output_func_epilogue,
+ output_return_instruction): Likewise for calls to abort.
+
Sat May 8 01:57:58 1999 Donn Terry (donn@interix.com)
* calls.c (rtx_for_function_call): Extend function pointer being
/* Otherwise, trap an attempted return by aborting. */
ops[0] = operand;
- ops[1] = gen_rtx_SYMBOL_REF (Pmode, "abort");
+ ops[1] = gen_rtx_SYMBOL_REF (Pmode, NEED_PLT_GOT ? "abort(PLT)"
+ : "abort");
assemble_external_libcall (ops[1]);
output_asm_insn (reverse ? "bl%D0\t%a1" : "bl%d0\t%a1", ops);
return "";
/* A volatile function should never return. Call abort. */
if (TARGET_ABORT_NORETURN && volatile_func)
{
- rtx op = gen_rtx_SYMBOL_REF (Pmode, "abort");
+ rtx op;
+ op = gen_rtx_SYMBOL_REF (Pmode, NEED_PLT_GOT ? "abort(PLT)" : "abort");
assemble_external_libcall (op);
output_asm_insn ("bl\t%a0", &op);
goto epilogue_done;
#define TARGET_MEM_FUNCTIONS 1
#define OVERRIDE_OPTIONS arm_override_options ()
+
+/* Nonzero if PIC code requires explicit qualifiers to generate
+ PLT and GOT relocs rather than the assembler doing so implicitly.
+ Subtargets can override this if required. */
+#define NEED_PLT_GOT 0
\f
/* Target machine storage Layout. */
(match_operand:SI 1 "general_operand" "g"))
(clobber (reg:SI 14))]
"GET_CODE (operands[0]) == SYMBOL_REF"
- "bl%?\\t%a0"
+ "*
+ {
+ return NEED_PLT_GOT ? \"bl%?\\t%a0(PLT)\" : \"bl%?\\t%a0\";
+ }"
[(set_attr "type" "call")])
(define_insn "*call_value_symbol"
(match_operand:SI 2 "general_operand" "g")))
(clobber (reg:SI 14))]
"GET_CODE(operands[1]) == SYMBOL_REF"
- "bl%?\\t%a1"
+ "*
+ {
+ return NEED_PLT_GOT ? \"bl%?\\t%a1(PLT)\" : \"bl%?\\t%a1\";
+ }"
[(set_attr "type" "call")])
;; Often the return insn will be the same as loading from memory, so set attr
}
output_return_instruction (NULL, FALSE, FALSE);
- return \"b%?\\t%a0\";
+ return NEED_PLT_GOT ? \"b%?\\t%a0(PLT)\" : \"b%?\\t%a0\";
}"
[(set_attr "type" "call")
(set_attr "length" "8")])
}
output_return_instruction (NULL, FALSE, FALSE);
- return \"b%?\\t%a1\";
+ return NEED_PLT_GOT ? \"b%?\\t%a1(PLT)\" : \"b%?\\t%a1\";
}"
[(set_attr "type" "call")
(set_attr "length" "8")])
do { fputs ("\t.weak\t", FILE); assemble_name (FILE, NAME); \
fputc ('\n', FILE); } while (0)
+/* For PIC code we need to explicitly specify (PLT) and (GOT) relocs. */
+#define NEED_PLT_GOT flag_pic
+
#include "arm/aout.h"