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devkitA64: update binutils to 2.42

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This commit is contained in:
Dave Murphy 2024-02-01 15:59:29 +00:00
parent dfb3d82a96
commit de681b1691
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GPG Key ID: F7FD5492264BB9D0
4 changed files with 510 additions and 3 deletions
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2
build-devkit.sh
View File

@ -2,7 +2,7 @@
#---------------------------------------------------------------------------------
# devkitARM release 63
# devkitPPC release 45
# devkitA64 release 24
# devkitA64 release 25
#---------------------------------------------------------------------------------
if [ 0 -eq 1 ] ; then

507
dka64/patches/binutils-2.42.patch Normal file
View File

@ -0,0 +1,507 @@
diff --git a/bfd/elf-bfd.h b/bfd/elf-bfd.h
index 3ed22fa6c52..16cec309746 100644
--- a/bfd/elf-bfd.h
+++ b/bfd/elf-bfd.h
@@ -1984,6 +1984,14 @@ struct output_elf_obj_tdata
asection *sec;
} package_metadata;
+ /* Data for .nx-module-name. */
+ struct
+ {
+ bool (*after_write_object_contents) (bfd *);
+ const char *name;
+ asection *sec;
+ } nx_module_name;
+
/* Records the result of `get_program_header_size'. */
bfd_size_type program_header_size;
diff --git a/bfd/elf.c b/bfd/elf.c
index 88c75ae3ce0..c4b5cda59a7 100644
--- a/bfd/elf.c
+++ b/bfd/elf.c
@@ -7359,6 +7359,14 @@ _bfd_elf_write_object_contents (bfd *abfd)
if (!bed->s->write_shdrs_and_ehdr (abfd))
return false;
+ /* Write out the NX module name. */
+ if (t->o->nx_module_name.after_write_object_contents != NULL)
+ {
+ failed = !(*t->o->nx_module_name.after_write_object_contents) (abfd);
+ if (failed)
+ return false;
+ }
+
/* This is last since write_shdrs_and_ehdr can touch i_shdrp[0]. */
if (t->o->build_id.after_write_object_contents != NULL
&& !(*t->o->build_id.after_write_object_contents) (abfd))
diff --git a/bfd/elfnn-aarch64.c b/bfd/elfnn-aarch64.c
index 109517db4aa..36ea8726544 100644
--- a/bfd/elfnn-aarch64.c
+++ b/bfd/elfnn-aarch64.c
@@ -2441,6 +2441,12 @@ enum elf_aarch64_stub_type
aarch64_stub_erratum_843419_veneer,
};
+/* Is an undefined weak symbol resolved to 0 ? */
+#define UNDEFINED_WEAK_RESOLVED_TO_ZERO(INFO, EH) \
+ ((EH)->root.root.type == bfd_link_hash_undefweak \
+ && bfd_link_executable (INFO) \
+ && !(INFO)->dynamic_undefined_weak)
+
struct elf_aarch64_stub_hash_entry
{
/* Base hash table entry structure. */
@@ -6947,11 +6953,13 @@ elfNN_aarch64_relocate_section (bfd *output_bfd,
Elf_Internal_Sym *sym;
asection *sec;
struct elf_link_hash_entry *h;
+ struct elf_aarch64_link_hash_entry *eh;
bfd_vma relocation;
bfd_reloc_status_type r;
arelent bfd_reloc;
char sym_type;
bool unresolved_reloc = false;
+ bool resolved_to_zero = false;
char *error_message = NULL;
r_symndx = ELFNN_R_SYM (rel->r_info);
@@ -7091,6 +7099,10 @@ elfNN_aarch64_relocate_section (bfd *output_bfd,
h, &unresolved_reloc,
save_addend, &addend, sym);
+ eh = (struct elf_aarch64_link_hash_entry *) h;
+ resolved_to_zero = (eh != NULL
+ && UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh));
+
switch (elfNN_aarch64_bfd_reloc_from_type (input_bfd, r_type))
{
case BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC:
@@ -7114,7 +7126,7 @@ elfNN_aarch64_relocate_section (bfd *output_bfd,
need_relocs =
(!bfd_link_executable (info) || indx != 0) &&
(h == NULL
- || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
+ || (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT && !resolved_to_zero)
|| h->root.type != bfd_link_hash_undefweak);
BFD_ASSERT (globals->root.srelgot != NULL);
@@ -7209,7 +7221,7 @@ elfNN_aarch64_relocate_section (bfd *output_bfd,
need_relocs =
(!bfd_link_executable (info) || indx != 0) &&
(h == NULL
- || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
+ || (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT && !resolved_to_zero)
|| h->root.type != bfd_link_hash_undefweak);
BFD_ASSERT (globals->root.srelgot != NULL);
@@ -7258,7 +7270,7 @@ elfNN_aarch64_relocate_section (bfd *output_bfd,
bfd_vma off = symbol_tlsdesc_got_offset (input_bfd, h, r_symndx);
need_relocs = (h == NULL
- || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
+ || (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT && !resolved_to_zero)
|| h->root.type != bfd_link_hash_undefweak);
BFD_ASSERT (globals->root.srelgot != NULL);
@@ -7584,6 +7596,23 @@ need_copy_relocation_p (struct elf_aarch64_link_hash_entry *eh)
return false;
}
+/* Remove undefined weak symbol from the dynamic symbol table if it
+ is resolved to 0. */
+
+static bool
+elfNN_aarch64_elf_fixup_symbol (struct bfd_link_info *info,
+ struct elf_link_hash_entry *h)
+{
+ if (h->dynindx != -1
+ && UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, elf_aarch64_hash_entry (h)))
+ {
+ h->dynindx = -1;
+ _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
+ h->dynstr_index);
+ }
+ return true;
+}
+
/* Adjust a symbol defined by a dynamic object and referenced by a
regular object. The current definition is in some section of the
dynamic object, but we're not including those sections. We have to
@@ -8802,6 +8831,7 @@ elfNN_aarch64_allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
struct elf_aarch64_link_hash_table *htab;
struct elf_aarch64_link_hash_entry *eh;
struct elf_dyn_relocs *p;
+ bool resolved_to_zero;
/* An example of a bfd_link_hash_indirect symbol is versioned
symbol. For example: __gxx_personality_v0(bfd_link_hash_indirect)
@@ -8821,6 +8851,10 @@ elfNN_aarch64_allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
info = (struct bfd_link_info *) inf;
htab = elf_aarch64_hash_table (info);
+ eh = (struct elf_aarch64_link_hash_entry *) h;
+ eh->tlsdesc_got_jump_table_offset = (bfd_vma) - 1;
+ resolved_to_zero = UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh);
+
/* Since STT_GNU_IFUNC symbol must go through PLT, we handle it
here if it is defined and referenced in a non-shared object. */
if (h->type == STT_GNU_IFUNC
@@ -8830,7 +8864,7 @@ elfNN_aarch64_allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
{
/* Make sure this symbol is output as a dynamic symbol.
Undefined weak syms won't yet be marked as dynamic. */
- if (h->dynindx == -1 && !h->forced_local
+ if (h->dynindx == -1 && !h->forced_local && !resolved_to_zero
&& h->root.type == bfd_link_hash_undefweak)
{
if (!bfd_elf_link_record_dynamic_symbol (info, h))
@@ -8864,6 +8898,11 @@ elfNN_aarch64_allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
of relaxing into these from the large model PLT entries. */
s->size += htab->plt_entry_size;
+ /* There should be no PLT relocations against resolved undefined
+ weak symbols in the executable. */
+ if (!resolved_to_zero)
+ {
+
/* We also need to make an entry in the .got.plt section, which
will be placed in the .got section by the linker script. */
htab->root.sgotplt->size += GOT_ENTRY_SIZE;
@@ -8892,6 +8931,7 @@ elfNN_aarch64_allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
htab->variant_pcs = 1;
}
+ }
else
{
h->plt.offset = (bfd_vma) - 1;
@@ -8904,9 +8944,6 @@ elfNN_aarch64_allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
h->needs_plt = 0;
}
- eh = (struct elf_aarch64_link_hash_entry *) h;
- eh->tlsdesc_got_jump_table_offset = (bfd_vma) - 1;
-
if (h->got.refcount > 0)
{
bool dyn;
@@ -8918,7 +8955,7 @@ elfNN_aarch64_allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
/* Make sure this symbol is output as a dynamic symbol.
Undefined weak syms won't yet be marked as dynamic. */
- if (dyn && h->dynindx == -1 && !h->forced_local
+ if (dyn && h->dynindx == -1 && !h->forced_local && !resolved_to_zero
&& h->root.type == bfd_link_hash_undefweak)
{
if (!bfd_elf_link_record_dynamic_symbol (info, h))
@@ -8932,7 +8969,7 @@ elfNN_aarch64_allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
{
h->got.offset = htab->root.sgot->size;
htab->root.sgot->size += GOT_ENTRY_SIZE;
- if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
+ if (((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT && !resolved_to_zero)
|| h->root.type != bfd_link_hash_undefweak)
&& (bfd_link_pic (info)
|| WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))
@@ -8968,7 +9005,7 @@ elfNN_aarch64_allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
}
indx = h && h->dynindx != -1 ? h->dynindx : 0;
- if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
+ if (((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT && !resolved_to_zero)
|| h->root.type != bfd_link_hash_undefweak)
&& (!bfd_link_executable (info)
|| indx != 0
@@ -9050,7 +9087,7 @@ elfNN_aarch64_allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
visibility. */
if (h->dyn_relocs != NULL && h->root.type == bfd_link_hash_undefweak)
{
- if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
+ if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT || resolved_to_zero
|| UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
h->dyn_relocs = NULL;
@@ -9070,7 +9107,9 @@ elfNN_aarch64_allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
symbols which turn out to need copy relocs or are not
dynamic. */
- if (!h->non_got_ref
+ if (!(h->non_got_ref
+ || (h->root.type == bfd_link_hash_undefweak
+ && !resolved_to_zero))
&& ((h->def_dynamic
&& !h->def_regular)
|| (htab->root.dynamic_sections_created
@@ -9081,6 +9120,7 @@ elfNN_aarch64_allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
Undefined weak syms won't yet be marked as dynamic. */
if (h->dynindx == -1
&& !h->forced_local
+ && !resolved_to_zero
&& h->root.type == bfd_link_hash_undefweak
&& !bfd_elf_link_record_dynamic_symbol (info, h))
return false;
@@ -9638,8 +9678,17 @@ elfNN_aarch64_finish_dynamic_symbol (bfd *output_bfd,
Elf_Internal_Sym *sym)
{
struct elf_aarch64_link_hash_table *htab;
+ struct elf_aarch64_link_hash_entry *eh;
+ bool local_undefweak;
htab = elf_aarch64_hash_table (info);
+ eh = (struct elf_aarch64_link_hash_entry *) h;
+
+ /* We keep PLT/GOT entries without dynamic PLT/GOT relocations for
+ resolved undefined weak symbols in executable so that their
+ references have value 0 at run-time. */
+ local_undefweak = UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh);
+
if (h->plt.offset != (bfd_vma) - 1)
{
asection *plt, *gotplt, *relplt;
@@ -9674,7 +9723,7 @@ elfNN_aarch64_finish_dynamic_symbol (bfd *output_bfd,
return false;
elfNN_aarch64_create_small_pltn_entry (h, htab, output_bfd, info);
- if (!h->def_regular)
+ if (!local_undefweak && !h->def_regular)
{
/* Mark the symbol as undefined, rather than as defined in
the .plt section. */
@@ -9696,7 +9745,8 @@ elfNN_aarch64_finish_dynamic_symbol (bfd *output_bfd,
&& elf_aarch64_hash_entry (h)->got_type == GOT_NORMAL
/* Undefined weak symbol in static PIE resolves to 0 without
any dynamic relocations. */
- && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
+ && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)
+ && !local_undefweak)
{
Elf_Internal_Rela rela;
bfd_byte *loc;
@@ -10343,6 +10393,9 @@ const struct elf_size_info elfNN_aarch64_size_info =
#define elf_backend_init_index_section \
_bfd_elf_init_2_index_sections
+#define elf_backend_fixup_symbol \
+ elfNN_aarch64_elf_fixup_symbol
+
#define elf_backend_finish_dynamic_sections \
elfNN_aarch64_finish_dynamic_sections
diff --git a/ld/emulparams/aarch64elf.sh b/ld/emulparams/aarch64elf.sh
index 8f68e517b45..260a590e69e 100644
--- a/ld/emulparams/aarch64elf.sh
+++ b/ld/emulparams/aarch64elf.sh
@@ -1,3 +1,5 @@
+source_sh ${srcdir}/emulparams/dynamic_undefined_weak.sh
+
ARCH=aarch64
MACHINE=
NOP=0x1f2003d5
diff --git a/ld/emulparams/aarch64elf32.sh b/ld/emulparams/aarch64elf32.sh
index 5a08d9e29f1..e4c9abf85a1 100644
--- a/ld/emulparams/aarch64elf32.sh
+++ b/ld/emulparams/aarch64elf32.sh
@@ -1,3 +1,5 @@
+source_sh ${srcdir}/emulparams/dynamic_undefined_weak.sh
+
ARCH="aarch64:ilp32"
MACHINE=
NOP=0x1f2003d5
diff --git a/ld/emultempl/aarch64elf.em b/ld/emultempl/aarch64elf.em
index b647909ae63..3e2d7a171b9 100644
--- a/ld/emultempl/aarch64elf.em
+++ b/ld/emultempl/aarch64elf.em
@@ -378,7 +378,7 @@ PARSE_AND_LIST_LONGOPTS='
{ "no-apply-dynamic-relocs", no_argument, NULL, OPTION_NO_APPLY_DYNAMIC_RELOCS},
'
-PARSE_AND_LIST_OPTIONS='
+PARSE_AND_LIST_OPTIONS=${PARSE_AND_LIST_OPTIONS}'
fprintf (file, _(" --no-enum-size-warning Don'\''t warn about objects with incompatible\n"
" enum sizes\n"));
fprintf (file, _(" --no-wchar-size-warning Don'\''t warn about objects with incompatible\n"
diff --git a/ld/emultempl/elf.em b/ld/emultempl/elf.em
index 71cec19fdc6..3fd0585dee6 100644
--- a/ld/emultempl/elf.em
+++ b/ld/emultempl/elf.em
@@ -574,6 +574,7 @@ enum elf_options
OPTION_EXCLUDE_LIBS,
OPTION_HASH_STYLE,
OPTION_BUILD_ID,
+ OPTION_NX_MODULE_NAME,
OPTION_PACKAGE_METADATA,
OPTION_AUDIT,
OPTION_COMPRESS_DEBUG
@@ -605,6 +606,7 @@ EOF
fi
fragment <<EOF
{"build-id", optional_argument, NULL, OPTION_BUILD_ID},
+ {"nx-module-name", optional_argument, NULL, OPTION_NX_MODULE_NAME},
{"package-metadata", optional_argument, NULL, OPTION_PACKAGE_METADATA},
{"compress-debug-sections", required_argument, NULL, OPTION_COMPRESS_DEBUG},
EOF
@@ -675,6 +677,16 @@ gld${EMULATION_NAME}_handle_option (int optc)
einfo (_("%F%P: invalid --compress-debug-sections option: \`%s'\n"),
optarg);
break;
+ case OPTION_NX_MODULE_NAME:
+ if (ldelf_emit_nx_module_name != NULL)
+ {
+ free ((char *) ldelf_emit_nx_module_name);
+ ldelf_emit_nx_module_name = NULL;
+ }
+ if (optarg == NULL)
+ optarg = "";
+ ldelf_emit_nx_module_name = xstrdup (optarg);
+ break;
EOF
if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
diff --git a/ld/ldelf.c b/ld/ldelf.c
index 2852851dcd5..0b1efa9675a 100644
--- a/ld/ldelf.c
+++ b/ld/ldelf.c
@@ -55,6 +55,9 @@ const char *ldelf_emit_note_gnu_build_id;
/* Content of .note.package section. */
const char *ldelf_emit_note_fdo_package_metadata;
+/* NX module name. */
+const char *ldelf_emit_nx_module_name;
+
/* These variables are required to pass information back and forth
between after_open and check_needed and stat_needed and vercheck. */
@@ -1209,8 +1212,93 @@ ldelf_handle_dt_needed (struct elf_link_hash_table *htab,
*save_input_bfd_tail = NULL;
}
-/* This is called before calling plugin 'all symbols read' hook. */
+static bool
+write_nx_module_name (bfd *abfd)
+{
+ struct elf_obj_tdata *t = elf_tdata (abfd);
+ const char *name;
+ asection *asec;
+ Elf_Internal_Shdr *i_shdr;
+ unsigned char *contents;
+ bfd_size_type size;
+ file_ptr position;
+ name = t->o->nx_module_name.name;
+ asec = t->o->nx_module_name.sec;
+ if (bfd_is_abs_section (asec->output_section))
+ {
+ einfo (_("%P: warning: .nx-module-name section discarded,"
+ " --build-id ignored\n"));
+ return true;
+ }
+ i_shdr = &elf_section_data (asec->output_section)->this_hdr;
+
+ if (i_shdr->contents == NULL)
+ {
+ if (asec->contents == NULL)
+ asec->contents = (unsigned char *) xmalloc (asec->size);
+ contents = asec->contents;
+ }
+ else
+ contents = i_shdr->contents + asec->output_offset;
+
+ size = asec->size;
+ bfd_h_put_32 (abfd, 0, &contents[0]);
+ bfd_h_put_32 (abfd, size - 9, &contents[4]);
+ memcpy (&contents[8], name, size - 9);
+ contents[size - 1] = 0; /* ensure null termination for AMS */
+
+ position = i_shdr->sh_offset + asec->output_offset;
+
+ return (bfd_seek (abfd, position, SEEK_SET) == 0
+ && bfd_write (contents, size, abfd) == size);
+}
+
+/* Make .nx-module-name section, and set up elf_tdata->nx_module_name. */
+
+static bool
+setup_nx_module_name (bfd *ibfd, bfd *obfd)
+{
+ asection *s;
+ bfd_size_type size;
+ flagword flags;
+
+ if (ldelf_emit_nx_module_name[0] == '\0')
+ {
+ /* Extract the basename of the output bfd and use it as the module name. */
+ char *dot_pos;
+ free ((char *) ldelf_emit_nx_module_name);
+ ldelf_emit_nx_module_name = (char *) lbasename (bfd_get_filename (obfd));
+ ldelf_emit_nx_module_name = xstrdup (ldelf_emit_nx_module_name);
+ dot_pos = strrchr (ldelf_emit_nx_module_name, '.');
+ if (dot_pos != NULL)
+ {
+ /* Remove extension. */
+ *dot_pos = 0;
+ }
+ }
+
+ size = 8 + strlen(ldelf_emit_nx_module_name) + 1; /* extra null terminator for AMS */
+ flags = (SEC_ALLOC | SEC_LOAD | SEC_IN_MEMORY
+ | SEC_LINKER_CREATED | SEC_READONLY | SEC_DATA);
+ s = bfd_make_section_with_flags (ibfd, ".nx-module-name", flags);
+ if (s != NULL && bfd_set_section_alignment (s, 4))
+ {
+ struct elf_obj_tdata *t = elf_tdata (link_info.output_bfd);
+ t->o->nx_module_name.after_write_object_contents = &write_nx_module_name;
+ t->o->nx_module_name.name = ldelf_emit_nx_module_name;
+ t->o->nx_module_name.sec = s;
+ elf_section_type (s) = SHT_PROGBITS;
+ s->size = size;
+ return true;
+ }
+
+ einfo (_("%P: warning: cannot create .nx-module-name section,"
+ " --nx-module-name ignored\n"));
+ return false;
+}
+
+/* This is called before calling plugin 'all symbols read' hook. */
void
ldelf_before_plugin_all_symbols_read (int use_libpath, int native,
int is_linux, int is_freebsd,
@@ -1289,6 +1377,24 @@ ldelf_after_open (int use_libpath, int native, int is_linux, int is_freebsd,
}
}
+ if (ldelf_emit_nx_module_name != NULL)
+ {
+ /* Find an ELF input. */
+ for (abfd = link_info.input_bfds;
+ abfd != (bfd *) NULL; abfd = abfd->link.next)
+ if (bfd_get_flavour (abfd) == bfd_target_elf_flavour
+ && bfd_count_sections (abfd) != 0
+ && !((lang_input_statement_type *) abfd->usrdata)->flags.just_syms)
+ break;
+
+ /* If there are no ELF input files do not try to create a .nx-module-name section. */
+ if (abfd == NULL || !setup_nx_module_name (abfd, link_info.output_bfd))
+ {
+ free ((char *) ldelf_emit_nx_module_name);
+ ldelf_emit_nx_module_name = NULL;
+ }
+ }
+
get_elf_backend_data (link_info.output_bfd)->setup_gnu_properties (&link_info);
/* Do not allow executable files to be used as inputs to the link. */
diff --git a/ld/ldelf.h b/ld/ldelf.h
index 239194772c4..68516dbf45e 100644
--- a/ld/ldelf.h
+++ b/ld/ldelf.h
@@ -20,6 +20,7 @@
extern const char *ldelf_emit_note_gnu_build_id;
extern const char *ldelf_emit_note_fdo_package_metadata;
+extern const char *ldelf_emit_nx_module_name;
extern void ldelf_after_parse (void);
extern bool ldelf_load_symbols (lang_input_statement_type *);

2
dka64/scripts/build-gcc.sh
View File

@ -62,7 +62,7 @@ then
--enable-lto \
--disable-tm-clone-registry \
--disable-__cxa_atexit \
--with-bugurl="https://github.com/devkitPro/buildscripts/issues" --with-pkgversion="devkitA64 release 24" \
--with-bugurl="https://github.com/devkitPro/buildscripts/issues" --with-pkgversion="devkitA64 release 25" \
$CROSS_PARAMS \
$CROSS_GCC_PARAMS \
$EXTRA_GCC_PARAMS \

2
select_toolchain.sh
View File

@ -50,7 +50,7 @@ case "$VERSION" in
;;
"3" )
GCC_VER=13.2.0
BINUTILS_VER=2.41
BINUTILS_VER=2.42
NEWLIB_VER=4.3.0.20230120
basedir='dka64'
package=devkitA64