-/* Copyright (C) 1998-2015 Free Software Foundation, Inc.
+/* Copyright (C) 1998-2021 Free Software Foundation, Inc.
Contributed by Joern Rennecke
This file is part of GCC.
#include <stdio.h>
#include <string.h>
+#define IN_TARGET_CODE 1
+
#include "config.h"
#define IN_GEN_AVR_MMCU_TEXI
#include "avr-devices.c"
-// Get rid of "defaults.h". We just need tm.h for `WITH_AVRLIBS' and
+// Get rid of "defaults.h". We just need tm.h for `WITH_AVRLIBC' and
// and `WITH_RTEMS'. */
#define GCC_DEFAULTS_H
#include "avrlibc.h"
#endif
-#if defined (WITH_RTEMS)
-#include "../rtems.h"
-#include "rtems.h"
-#endif
-
#define SPECFILE_DOC_URL \
- "http://gcc.gnu.org/onlinedocs/gcc/Spec-Files.html"
+ "https://gcc.gnu.org/onlinedocs/gcc/Spec-Files.html"
-/* Return true iff STR starts with PREFIX. */
-
-static bool
-str_prefix_p (const char *str, const char *prefix)
-{
- return 0 == strncmp (str, prefix, strlen (prefix));
-}
+#define SPECFILE_USAGE_URL \
+ "https://gcc.gnu.org/gcc-5/changes.html"
static const char header[] =
"# Generated by : ./gcc/config/avr/gen-avr-mmcu-specs.c\n"
"# Generated from : ./gcc/config/gcc.c\n"
"# ./gcc/config/avr/specs.h\n"
-#if defined (WITH_RTEMS)
- "# ./gcc/config/rtems.h\n"
- "# ./gcc/config/avr/rtems.h\n"
-#endif
#if defined (WITH_AVRLIBC)
"# ./gcc/config/avr/avrlibc.h\n"
#endif
static const char help_copy_paste[] =
"# If you intend to use an existing device specs file as a starting point\n"
"# for a new device spec file, make sure you are copying from a specs\n"
- "# file for a device from the same core architecture and SP width.\n";
+ "# file for a device from the same core architecture and SP width.\n"
+ "# See <" SPECFILE_USAGE_URL "> for a description\n"
+ "# of how to use such own spec files.\n";
#if defined (WITH_AVRLIBC)
static const char help_dev_lib_name[] =
"# #include <avr/io.h>\n"
"#\n"
"# will include the desired device header. For ATmega8A the supplement\n"
- "# to *cpp would read\n"
+ "# to *cpp_avrlibc would read\n"
"#\n"
"# -D__AVR_DEV_LIB_NAME__=m8a\n"
"\n";
print_mcu (const avr_mcu_t *mcu)
{
const char *sp8_spec;
+ const char *rcall_spec;
const avr_mcu_t *arch_mcu;
const avr_arch_t *arch;
enum avr_arch_id arch_id = mcu->arch_id;
FILE *f = fopen (name ,"w");
- bool errata_skip = 0 != (mcu->dev_attribute & AVR_ERRATA_SKIP);
- bool rmw = 0 != (mcu->dev_attribute & AVR_ISA_RMW);
- bool sp8 = 0 != (mcu->dev_attribute & AVR_SHORT_SP);
- bool is_arch = NULL == mcu->macro;
+ bool absdata = (mcu->dev_attribute & AVR_ISA_LDS) != 0;
+ bool errata_skip = (mcu->dev_attribute & AVR_ERRATA_SKIP) != 0;
+ bool rmw = (mcu->dev_attribute & AVR_ISA_RMW) != 0;
+ bool sp8 = (mcu->dev_attribute & AVR_SHORT_SP) != 0;
+ bool rcall = (mcu->dev_attribute & AVR_ISA_RCALL);
+ bool is_arch = mcu->macro == NULL;
bool is_device = ! is_arch;
+ int flash_pm_offset = 0;
+
+ if (arch->flash_pm_offset
+ && mcu->flash_pm_offset
+ && mcu->flash_pm_offset != arch->flash_pm_offset)
+ {
+ flash_pm_offset = mcu->flash_pm_offset;
+ }
if (is_arch
&& (ARCH_AVR2 == arch_id
sp8_spec = sp8 ? "-msp8" :"%<msp8";
}
+ if (is_arch
+ && ARCH_AVRXMEGA3 == arch_id)
+ {
+ // Leave "avrxmega3" alone. This architectures is the only one
+ // that mixes devices with and without JMP / CALL.
+ rcall_spec = "";
+ }
+ else
+ {
+ rcall_spec = rcall ? "-mshort-calls" : "%<mshort-calls";
+ }
+
fprintf (f, "#\n"
"# Auto-generated specs for AVR ");
if (is_arch)
fprintf (f, "core architecture %s\n", arch->name);
else
- fprintf (f, "device %s (core %s, %d-bit SP)\n",
- mcu->name, arch->name, sp8 ? 8 : 16);
+ fprintf (f, "device %s (core %s, %d-bit SP%s)\n", mcu->name,
+ arch->name, sp8 ? 8 : 16, rcall ? ", short-calls" : "");
fprintf (f, "%s\n", header);
if (is_device)
// avr-gcc specific specs for the compilation / the compiler proper.
+ int n_flash = 1 + (mcu->flash_size - 1) / 0x10000;
+
fprintf (f, "*cc1_n_flash:\n"
- "\t%%{!mn-flash=*:-mn-flash=%d}\n\n", mcu->n_flash);
+ "\t%%{!mn-flash=*:-mn-flash=%d}\n\n", n_flash);
fprintf (f, "*cc1_rmw:\n%s\n\n", rmw
? "\t%{!mno-rmw: -mrmw}"
? "\t%{!mno-skip-bug: -mskip-bug}"
: "\t%{!mskip-bug: -mno-skip-bug}");
+ fprintf (f, "*cc1_absdata:\n%s\n\n", absdata
+ ? "\t%{!mno-absdata: -mabsdata}"
+ : "\t%{mabsdata}");
+
// avr-gcc specific specs for assembling / the assembler.
fprintf (f, "*asm_arch:\n\t-mmcu=%s\n\n", arch->name);
: "\t%{mrmw}");
#endif // have avr-as -mrmw
+#ifdef HAVE_AS_AVR_MGCCISR_OPTION
+ fprintf (f, "*asm_gccisr:\n%s\n\n",
+ "\t%{!mno-gas-isr-prologues: -mgcc-isr}");
+#endif // have avr-as -mgcc-isr
+
fprintf (f, "*asm_errata_skip:\n%s\n\n", errata_skip
? "\t%{mno-skip-bug}"
: "\t%{!mskip-bug: -mno-skip-bug}");
// avr-specific specs for linking / the linker.
int wrap_k =
- str_prefix_p (mcu->name, "at90usb8") ? 8
- : str_prefix_p (mcu->name, "atmega16") ? 16
- : (str_prefix_p (mcu->name, "atmega32")
- || str_prefix_p (mcu->name, "at90can32")) ? 32
- : (str_prefix_p (mcu->name, "atmega64")
- || str_prefix_p (mcu->name, "at90can64")
- || str_prefix_p (mcu->name, "at90usb64")) ? 64
+ mcu->flash_size == 0x2000 ? 8
+ : mcu->flash_size == 0x4000 ? 16
+ : mcu->flash_size == 0x8000 ? 32
+ : mcu->flash_size == 0x10000 ? 64
: 0;
fprintf (f, "*link_pmem_wrap:\n");
- if (wrap_k)
+ if (wrap_k == 8)
+ fprintf (f, "\t%%{!mno-pmem-wrap-around: --pmem-wrap-around=8k}");
+ else if (wrap_k > 8)
fprintf (f, "\t%%{mpmem-wrap-around: --pmem-wrap-around=%dk}", wrap_k);
fprintf (f, "\n\n");
fprintf (f, "*link_relax:\n\t%s\n\n", LINK_RELAX_SPEC);
- fprintf (f, "*link_arch:\n\t%s\n\n", LINK_ARCH_SPEC);
+ fprintf (f, "*link_arch:\n\t%s", LINK_ARCH_SPEC);
+ if (is_device
+ && flash_pm_offset)
+ fprintf (f, " --defsym=__RODATA_PM_OFFSET__=0x%x", flash_pm_offset);
+ fprintf (f, "\n\n");
if (is_device)
{
fprintf (f, "*link_data_start:\n");
if (mcu->data_section_start
!= arch->default_data_section_start)
- fprintf (f, "\t-Tdata 0x%lX", 0x800000UL + mcu->data_section_start);
+ fprintf (f, "\t%%{!Tdata:-Tdata 0x%lX}",
+ 0x800000UL + mcu->data_section_start);
fprintf (f, "\n\n");
fprintf (f, "*link_text_start:\n");
if (mcu->text_section_start != 0x0)
- fprintf (f, "\t-Ttext 0x%lX", 0UL + mcu->text_section_start);
+ fprintf (f, "\t%%{!Ttext:-Ttext 0x%lX}", 0UL + mcu->text_section_start);
fprintf (f, "\n\n");
}
{
fprintf (f, "*self_spec:\n");
fprintf (f, "\t%%{!mmcu=avr*: %%<mmcu=* -mmcu=%s} ", arch->name);
+ fprintf (f, "%s ", rcall_spec);
fprintf (f, "%s\n\n", sp8_spec);
#if defined (WITH_AVRLIBC)
fprintf (f, "%s\n", help_dev_lib_name);
+
+ fprintf (f, "*cpp_avrlibc:\n");
+ fprintf (f, "\t-D__AVR_DEVICE_NAME__=%s", mcu->name);
+ fprintf (f, "\n\n");
#endif // WITH_AVRLIBC
+ fprintf (f, "*cpp_mcu:\n");
+ fprintf (f, "\t-D%s", mcu->macro);
+ if (flash_pm_offset)
+ {
+ fprintf (f, " -U__AVR_PM_BASE_ADDRESS__");
+ fprintf (f, " -D__AVR_PM_BASE_ADDRESS__=0x%x", flash_pm_offset);
+ }
+ fprintf (f, "\n\n");
+
fprintf (f, "*cpp:\n");
- fprintf (f, "\t-D%s -D__AVR_DEVICE_NAME__=%s", mcu->macro, mcu->name);
+ fprintf (f, "\t%%(cpp_mcu)");
+#if defined (WITH_AVRLIBC)
+ fprintf (f, " %%(cpp_avrlibc)");
+#endif // WITH_AVRLIBC
fprintf (f, "\n\n");
}
fprintf (f, "# End of file\n");
+
+ fclose (f);
}
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