Setting Stack Size from gnatlink - GNAT User's Guide for Unix Platforms

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5.3 Setting Stack Size from `gnatlink`

It is possible to specify the program stack size from gnatlink. Assuming that the underlying linker is GNU ld there is two ways to do so:

using -Xlinker linker option
```
          $ gnatlink hello -Xlinker --stack=0x10000,0x1000
     
```
This set the stack reserve size to 0x10000 bytes and the stack commit size to 0x1000 bytes.
using -Wl linker option
```
          $ gnatlink hello -Wl,--stack=0x1000000
     
```
This set the stack reserve size to 0x1000000 bytes. Note that with -Wl option it is not possible to set the stack commit size because the coma is a separator for this option.