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Toolchain update #420

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Toolchain update #420

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c2ee205
Toolchain update
Vogtinator May 24, 2024
64e351b
Support .init_array and .fini_array sections with priorities
Vogtinator May 25, 2024
7042bb8
Put .text into a separate ELF segment
Vogtinator Jun 1, 2024
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6 changes: 6 additions & 0 deletions ndless-sdk/libsyscalls/stdlib.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -558,6 +558,12 @@ clock_t _times(struct tms *ptms)
return 0;
}

int _getentropy (void *, size_t)
{
errno = ENOSYS;
return -1;
}

// Miscellaneous
void *__dso_handle __attribute__((weak));
void __sync_synchronize(){}
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18 changes: 14 additions & 4 deletions ndless-sdk/samples/zehn/test.cpp
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Expand Up @@ -4,17 +4,27 @@

using namespace std;

// Test global object construcion and order.
// This should work both with -fuse-cxa-atexit (the default)
// and -fno-use-cxa-atexit.
template <int i>
class Test
{
public:
Test() { cout << "Test();" << endl; }
~Test() { cout << "~Test();" << endl; }
Test() { cout << "Test(" << i << ")" << endl; }
~Test() {
cout << "~Test(" << i << ")" << endl;
if (i == 1000) // Should be last
wait_key_pressed();
}

void doSomething() { cout << "Doing something!" << endl; }
};

//Test global variables + initialization
static Test test;
static __attribute__ ((init_priority (1000))) Test<1000> t1000;
static __attribute__ ((init_priority (1001))) Test<1001> t1001;
// No init_priority is means higher than any init_priority
static Test<1024> test;

int main()
{
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2 changes: 1 addition & 1 deletion ndless-sdk/system/crti.S
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Expand Up @@ -2,7 +2,7 @@
* http://creativecommons.org/publicdomain/zero/1.0/ */
/* For C++ support */

.section .init_array
.section .init_array.0
__cpp_init: .global __cpp_init
push {r0, r1, r4, r5, lr}
adr r4,ctors
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2 changes: 1 addition & 1 deletion ndless-sdk/system/crtn.S
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Expand Up @@ -9,5 +9,5 @@ exit: .weak exit /* If linked without newlib, used by crt0. Can't be defined in
.section .init_array
.long -1 /* Terminating character for ctor list */

.section .fini_array
.section .fini_array.0
.long -1
11 changes: 9 additions & 2 deletions ndless-sdk/system/ldscript
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@@ -1,20 +1,27 @@
ENTRY(_start)

PHDRS {
text PT_LOAD;
data PT_LOAD;
}

SECTIONS {
.text 0x0 : {
_start = .;
*(.text)
KEEP(*(.text.crtn))
KEEP(*(SORT_BY_INIT_PRIORITY(.init_array.*)))
KEEP(*(.init_array))
KEEP(*(.fini_array))
KEEP(*(SORT_BY_INIT_PRIORITY(REVERSE(.fini_array.*))))
*(.text.*)
}
} :text

.got : {
*(.got.plt*)
*(.got)
LONG(0xFFFFFFFF)
}
} :data

.data : {
*(.rodata*)
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2 changes: 1 addition & 1 deletion ndless-sdk/thirdparty/nspire-io
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Submodule nspire-io updated 1 files
+1 −0 common/cpp/console.cpp
10 changes: 5 additions & 5 deletions ndless-sdk/toolchain/build_toolchain.sh
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Expand Up @@ -19,10 +19,10 @@ PREFIX="${PWD}/install" # or the directory where the toolchain should be install
PARALLEL="${PARALLEL--j4}" # or "-j<number of build jobs>"
PYTHON="${PYTHON-$(which python3 2>/dev/null)}" # or the full path to the python interpreter

BINUTILS=binutils-2.38 # https://www.gnu.org/software/binutils/
GCC=gcc-11.2.0 # https://gcc.gnu.org/
NEWLIB=newlib-4.1.0 # https://sourceware.org/newlib/
GDB=gdb-11.2 # https://www.gnu.org/software/gdb/
BINUTILS=binutils-2.42 # https://www.gnu.org/software/binutils/
GCC=gcc-14.1.0 # https://gcc.gnu.org/
NEWLIB=newlib-4.4.0.20231231 # https://sourceware.org/newlib/
GDB=gdb-14.2 # https://www.gnu.org/software/gdb/

# For newlib
export CFLAGS_FOR_TARGET="-DHAVE_RENAME -DMALLOC_PROVIDED -DABORT_PROVIDED -DNO_FORK -mcpu=arm926ej-s -ffunction-sections -O3"
Expand All @@ -31,7 +31,7 @@ export PATH="${PREFIX}/bin:${PATH}"

OPTIONS_BINUTILS="--target=${TARGET} --prefix=${PREFIX} --enable-interwork --enable-multilib --with-system-zlib --with-gnu-as --with-gnu-ld --disable-nls --with-float=soft --disable-werror"
OPTIONS_GCC="--target=${TARGET} --prefix=${PREFIX} --enable-interwork --enable-multilib --enable-languages=c,c++ --with-system-zlib --with-newlib --disable-threads --disable-tls --disable-shared --with-gnu-as --with-gnu-ld --with-float=soft --disable-werror --disable-libstdcxx-verbose"
OPTIONS_NEWLIB="--target=${TARGET} --prefix=${PREFIX} --enable-interwork --enable-multilib --with-gnu-as --with-gnu-ld --enable-newlib-io-long-long --disable-newlib-may-supply-syscalls --disable-newlib-supplied-syscalls --with-float=soft --disable-werror --disable-nls --enable-newlib-io-float"
OPTIONS_NEWLIB="--target=${TARGET} --prefix=${PREFIX} --enable-interwork --enable-multilib --with-gnu-as --with-gnu-ld --enable-newlib-io-long-long --disable-newlib-may-supply-syscalls --disable-newlib-supplied-syscalls --with-float=soft --disable-werror --disable-nls --enable-newlib-io-float --enable-newlib-reent-binary-compat"
OPTIONS_GDB="--target=${TARGET} --prefix=${PREFIX} --enable-interwork --enable-multilib --disable-werror"

if [ -n "${PYTHON}" ]; then
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