* config/bfin/bfin.opt (mfdpic): New option.

	* config/bfin/t-bfin-elf (EXTRA_PARTS): Add crtbeginS.o and crtendS.o.
	(EXTRA_MULTILIB_PARTS): Likewise.
	(CRTSTUFF_T_CFLAGS, TARGET_LIBGCC2_CFLAGS): Use -fpic.
	(MULTILIB_OPTIONS, MULTILIB_EXCEPTIONS): Build one extra -mfdpic
	multilib.
	* config/bfin/elf.h (STARTFILE_SPEC): Don't link in crt0.o if -shared.
	(CRT_CALL_STATIC_FUNCTION): New.
	* config/bfin/uclinux.h (STARTFILE_SPEC): Don't link in crt0.o if
	-shared.
	(CRT_CALL_STATIC_FUNCTION): New.
	* config/bfin/bfin.c (legitimize_pic_address): Now static.  Handle
	FD-PIC moves.
	(n_pregs_to_save): PIC register doesn't need to be saved with FD-PIC.
	(print_operand): Handle UNSPEC_MOVE_FDPIC and UNSPEC_FUNCDESC_GOT17M4.
	(initialize_trampoline): Changed to handle FD-PIC code generation.
	(expand_move): If TARGET_FDPIC, use emit_pic_move as needed.
	(bfin_expand_call): Generate FD-PIC calls if TARGET_FDPIC.
	(override_options): Disallow -mid-shared-library -mfdpic combination.
	Can't do unaligned ops if FD-PIC.
	Turn off flag_pic if trying to generate non-id-shared-library
	non-fdpic code, since it's not supported.
	(bfin_assemble_integer): New function.
	(TARGET_ASM_INTEGER): Define.
	* config/bfin/crti.s (__init, __fini): Save P3 on the stack if
	__BFIN_FDPIC__.
	* config/bfin/crtn.s: Restore them.
	* config/bfin/bfin.h (TARGET_CPU_CPP_BUILTINS): Define __BFIN_FDPIC__
	if TARGET_FDPIC.
	(DRIVER_SELF_SPECS, SUBTARGET_DRIVER_SELF_SPECS,
	LINK_GCC_C_SEQUENCE_SPEC, ASM_SPEC, LINK_SPEC): New macros.
	(FDPIC_FPTR_REGNO, FDPIC_REGNO, OUR_FDPIC_REG): New macros.
	(TRAMPOLINE_SIZE, TRAMPOLINE_TEMPLATE): Adjust for FD-PIC.
	(CONDITIONAL_REGISTER_USAGE): If TARGET_FDPIC, FDPIC_REGNO is
	call-used.
	(enum reg_class, REG_CLASS_CONTENTS, REG_CLASS_NAMES): Add
	FDPIC_REGS and FDPIC_FPTR_REGS.
	(REG_CLASS_FROM_LETTER): Use 'Z' and 'Y' for them.
	* config/bfin/bfin.md (UNSPEC_MOVE_FDPIC, UNSPEC_FUNCDESC_GOT17M4,
	UNSPEC_VOLATILE_LOAD_FUNCDESC): New constants.
	(load_funcdescsi): New pattern.
	(call_symbol_fdpic, sibcall_symbol_fdpic, call_value_symbol_fdpic,
	sibcall_value_symbol_fdpic, call_insn_fdpic, sibcall_insn_fdpic,
	call_value_insn_fdpic, sibcall_value_insn_fdpic): New patterns.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@114199 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 8 insertions, 1 deletions

diff --git a/gcc/config/bfin/elf.h b/gcc/config/bfin/elf.h
index 621b786c94d..39d06881dfb 100644
--- a/gcc/config/bfin/elf.h
+++ b/gcc/config/bfin/elf.h
@@ -7,7 +7,7 @@
      sprintf (LABEL, "*%s%s$%d", LOCAL_LABEL_PREFIX, PREFIX, (int) NUM)
 
 #undef  STARTFILE_SPEC
-#define STARTFILE_SPEC	"crt0%O%s crti%O%s crtbegin%O%s crtlibid%O%s"
+#define STARTFILE_SPEC	"%{!shared: crt0%O%s} crti%O%s crtbegin%O%s crtlibid%O%s"
 
 #undef  ENDFILE_SPEC
 #define ENDFILE_SPEC	"crtend%O%s crtn%O%s"
@@ -15,4 +15,11 @@
 #undef USER_LABEL_PREFIX
 #define USER_LABEL_PREFIX "_"
 
+#ifdef __BFIN_FDPIC__
+#define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC)	\
+asm (SECTION_OP); \
+asm ("P3 = [SP + 20];\n\tcall " USER_LABEL_PREFIX #FUNC ";"); \
+asm (TEXT_SECTION_ASM_OP);
+#endif
+
 #define NO_IMPLICIT_EXTERN_C