Re: Toolchain with ldc and AArch64 OSX
On Sunday, 9 July 2023 at 05:32:56 UTC, Danilo Krahn wrote:
On Saturday, 24 June 2023 at 15:16:37 UTC, Cecil Ward wrote:
I have LDC running on an ARM Mac. If anyone else out there is
an LDC or GDC user, could you knock up a quick shell program
to compile and link a .d file to produce an executable ? found
the linker but these tools are all new to me and a bit of help
would save me a lot of trial and error and frustration as I
try to find docs. GDC would be great too.
I have managed to achieve this before on a Raspberry Pi
AArch64 Linux Debian where the compiler can link and generate
an executable just in integrated fashion in the one command.
The OSX tools seem rather different however.
```d
import std.stdio : writeln;
void main() {
writeln("Hello, world!");
}
```
Compilation using LDC on macOS is just:
```
ldc2 --release --O3 main.d
```
Or some more options, to reduce executable size:
```
ldc2 --release --O3 --flto=full -fvisibility=hidden
-defaultlib=phobos2-ldc-lto,druntime-ldc-lto -L=-dead_strip
-L=-x -L=-S -L=-lz main.d
```
Executable size using first command: 1.3MB
Executable size using second command: 756KB
Brilliant, much appreciated! :) I posted ages ago about the bloat
that I see where function bodies are compiled even though they
are in fact always inlined and so the original body is never
needed. The address of these functions is not taken, so no
indirect pointer calling, and the functions are all explicitly
private which I hope is like static in C? Anyway, no one is
calling them from outside the module.
Re: Toolchain with ldc and AArch64 OSX
Forgot the following flags: `-L=-merge_zero_fill_sections -L=-no_exported_symbols -L=-no_eh_labels -L=-dead_strip_dylibs` So the full command is: ``` ldc2 --release --O3 --flto=full -fvisibility=hidden -defaultlib=phobos2-ldc-lto,druntime-ldc-lto -L=-dead_strip -L=-x -L=-S -L=-lz -L=-merge_zero_fill_sections -L=-no_exported_symbols -L=-no_eh_labels -L=-dead_strip_dylibs main.d ``` resulting in a executable of 588KB.
Re: Toolchain with ldc and AArch64 OSX
On Saturday, 24 June 2023 at 15:16:37 UTC, Cecil Ward wrote:
I have LDC running on an ARM Mac. If anyone else out there is
an LDC or GDC user, could you knock up a quick shell program to
compile and link a .d file to produce an executable ? found the
linker but these tools are all new to me and a bit of help
would save me a lot of trial and error and frustration as I try
to find docs. GDC would be great too.
I have managed to achieve this before on a Raspberry Pi AArch64
Linux Debian where the compiler can link and generate an
executable just in integrated fashion in the one command. The
OSX tools seem rather different however.
```d
import std.stdio : writeln;
void main() {
writeln("Hello, world!");
}
```
Compilation using LDC on macOS is just:
```
ldc2 --release --O3 main.d
```
Or some more options, to reduce executable size:
```
ldc2 --release --O3 --flto=full -fvisibility=hidden
-defaultlib=phobos2-ldc-lto,druntime-ldc-lto -L=-dead_strip -L=-x
-L=-S -L=-lz main.d
```
Executable size using first command: 1.3MB
Executable size using second command: 756KB
Re: Toolchain with ldc and AArch64 OSX
On Saturday, 24 June 2023 at 15:16:37 UTC, Cecil Ward wrote: I have LDC running on an ARM Mac. If anyone else out there is an LDC or GDC user, could you knock up a quick shell program to compile and link a .d file to produce an executable ? found the linker but these tools are all new to me and a bit of help would save me a lot of trial and error and frustration as I try to find docs. GDC would be great too. I have managed to achieve this before on a Raspberry Pi AArch64 Linux Debian where the compiler can link and generate an executable just in integrated fashion in the one command. The OSX tools seem rather different however. I’m going to try installing GDC on the Mac next, have got that running on the Pi too successfully. I have ldc installed (from `brew`) on my (also arm) Mac, it works fine, or do you specifically want to work out which linker to invoke manually and so on? I'm not sure if gdc is currently easy to obtain on arm macs. I think it should work fine but some packages hadn't enabled arm support on macos yet, last time *I* checked at least.
Toolchain with ldc and AArch64 OSX
I have LDC running on an ARM Mac. If anyone else out there is an LDC or GDC user, could you knock up a quick shell program to compile and link a .d file to produce an executable ? found the linker but these tools are all new to me and a bit of help would save me a lot of trial and error and frustration as I try to find docs. GDC would be great too. I have managed to achieve this before on a Raspberry Pi AArch64 Linux Debian where the compiler can link and generate an executable just in integrated fashion in the one command. The OSX tools seem rather different however. I’m going to try installing GDC on the Mac next, have got that running on the Pi too successfully.
