Support multilibs and devices that see flash in RAM address range.

gcc/
	Support multilibs and devices that see flash in RAM address range.

	PR target/81072
	* config/avr/avr-arch.h (avr_arch_id) <ARCH_AVRXMEGA3>: New enum.
	(avr_mcu_t) <flash_pm_offset>: New field.
	(avr_device_specific_features) <AVR_ISA_RCALL>: New enum.
	* config/avr/avr.h (AVR_SHORT_CALLS): New define.
	(AVR_HAVE_JMP_CALL): Don't set if AVR_SHORT_CALLS.
	(AVR_TINY_PM_OFFSET): Remove macro.
	* config/avr/avr.opt (-mshort-calls): New option.
	* config/avr/gen-avr-mmcu-specs.c (print_mcu)
	[*self_spec]: Add / remove -mshort-calls depending on AVR_ISA_RCALL.
	* config/avr/avr-c.c (avr_cpu_cpp_builtins)
	<__AVR_SHORT_CALLS__>: Built-in define if AVR_SHORT_CALLS.
	<__AVR_HAVE_JMP_CALL__>: Use AVR_HAVE_JMP_CALL as condition
	instead of avr_arch->have_jmp_call.
	<__AVR_PM_BASE_ADDRESS__>: Built-in define if avr_arch->flash_pm_offset.
	[AVR_TINY] <__AVR_TINY_PM_BASE_ADDRESS__>: Use
	avr_arch->flash_pm_offset to define.
	* config/avr/avr-devices.c (avr_arch_types): Add initializers for
	new field flash_pm_offset.  Add entry for avrxmega3.
	(avr_texinfo): Add entry for avrxmega3.
	* config/avr/avr-mcus.def: Add entries for: avrxmega3,
	attiny212, attiny214,
	attiny412, attiny414, attiny416, attiny417,
	attiny814, attiny816, attiny817,
	attiny1614, attiny1616, attiny1617,
	attiny3214, attiny3216, attiny3217.
	* config/avr/avr.c (avr_assemble_integer)[AVR_TINY]: Use
	avr_arch->flash_pm_offset instead of AVR_TINY_PM_OFFSET.
	(avr_print_operand_address) [AVR_TINY]: Same.
	(avr_asm_init_sections) <readonly_data_section>: Only patch
	callback if avr_arch->flash_pm_offset = 0.
	(avr_asm_named_section) <avr_need_copy_data_p>: Skip setting it
	for rodata if avr_arch->flash_pm_offset != 0.
	(avr_encode_section_info) [AVR_TINY]: Adjust comment.
	* config/avr/genmultilib.awk (dir_rcall, opt_rcall): New vars.
	(opts) [AVR_ISA_RCALL]: Append opt_rcall.
	(m_options): Append opt_rcall.
	(m_dirnames): Append dir_rcall.
	* config/avr/t-multilib: Regenerate.
	* configure.ac [target=avr]: Check whether avrxmega3 default
	linker description file works as needed.
	* configure: Regenerate.
	* doc/avr-mmcu.texi: Regenerate.
	* doc/invoke.texi (AVR Options) <-mshort-calls>: Document it.
	<__AVR_ARCH__>: Document avrxmega3 and 103.
	<__AVR_HAVE_JMP_CALL__>: Adjust documentation.
	<__AVR_SHORT_CALLS__>: Document it.
	<__AVR_PM_BASE_ADDRESS__>: Document it.
	* doc/extend.texi (AVR Options) <-mshort-calls>: Document it.
	(AVR Variable Attributes) <progmem>: Document this is
	not needed for avrxmega3.
	(AVR Named Address Spaces) <__flash>: Dito.

From-SVN: r249124

1 files changed, 14 insertions, 5 deletions

diff --git a/gcc/config/avr/avr-c.c b/gcc/config/avr/avr-c.c
index 9a3a190..81ffc4e 100644
--- a/gcc/config/avr/avr-c.c
+++ b/gcc/config/avr/avr-c.c
@@ -313,11 +313,16 @@ avr_cpu_cpp_builtins (struct cpp_reader *pfile)
       cpp_define (pfile, "__AVR_ENHANCED__");
       cpp_define (pfile, "__AVR_HAVE_MUL__");
     }
+
+  if (AVR_HAVE_JMP_CALL)
+    cpp_define (pfile, "__AVR_HAVE_JMP_CALL__");
+
   if (avr_arch->have_jmp_call)
-    {
-      cpp_define (pfile, "__AVR_MEGA__");
-      cpp_define (pfile, "__AVR_HAVE_JMP_CALL__");
-    }
+    cpp_define (pfile, "__AVR_MEGA__");
+
+  if (AVR_SHORT_CALLS)
+    cpp_define (pfile, "__AVR_SHORT_CALLS__");
+
   if (AVR_XMEGA)
     cpp_define (pfile, "__AVR_XMEGA__");
 
@@ -335,9 +340,13 @@ avr_cpu_cpp_builtins (struct cpp_reader *pfile)
          (ATtiny4/5/9/10/20 and 40) mapped program memory starts at 0x4000. */
 
       cpp_define_formatted (pfile, "__AVR_TINY_PM_BASE_ADDRESS__=0x%x",
-                            AVR_TINY_PM_OFFSET);
+                            avr_arch->flash_pm_offset);
     }
 
+  if (avr_arch->flash_pm_offset)
+    cpp_define_formatted (pfile, "__AVR_PM_BASE_ADDRESS__=0x%x",
+                          avr_arch->flash_pm_offset);
+
   if (AVR_HAVE_EIJMP_EICALL)
     {
       cpp_define (pfile, "__AVR_HAVE_EIJMP_EICALL__");