I was wondering iof anyone could enlighten me on this gnatmake call.
i found it on a Mac S/X site.
i've searched else for setting the stack_size for a main rather than
for individual tasks.
any advice appreciated.
Stuart Clark

stuart clark wrote:
I was wondering iof anyone could enlighten me on this gnatmake call.

i found it on a Mac S/X site.

i've searched else for setting the stack_size for a main rather than
for individual tasks.

any advice appreciated.

I'm not sure if you can control the stack size of the main task. When
needed, the advice I've seen is to have a dummy (empty) main procedure
and put all computation in a regular task, where you can use pragma
Stack_Size.

Though this can be a problem if you're using a runtime without tasking
or some other similar restrictions, I guess

This is in the Ada side of things. The linker argument is the operating
system counterpart, and I don't know the fine interactions between the two.

Thanks i had thought of the BRUTE froce approach.

i am still having trouble finding anythnig on this gnatmake -stack_size
option. this command i found on the Mac S/X forum is the only place i
have seen it.

Have you seen it before? -largs is linker arguments, i am trying to
find -Wl, -stack_size

Again thanks for the reply!

stuart clark wrote:
Thanks i had thought of the BRUTE froce approach.

i am still having trouble finding anythnig on this gnatmake -stack_size
option. this command i found on the Mac S/X forum is the only place i
have seen it.

Have you seen it before? -largs is linker arguments, i am trying to
find -Wl, -stack_size

I hadn't seen that exact form before. Then, I remember some thread about
how to pass these arguments to the linker under linux and windows, and
different people used slightly different recipes. In the end, I guess
you have to research two things: how to pass arguments to the underlying
linker, and what that linker will accept in your system

Check this thread:

#1a0bb4cf713b8abd

Again thanks for the reply!

You're welcome.

i have discovered how to pass switches/options to the system linker
that gcc linker doesnt understand, ie use the -Wl or -Xlink switches,

so

gnatmake myprog -largs -Wl,-stack_size
-largs = pass switches to linker
-Wl, passes the -stack_size switch which gcc linker doesnt understand
to the system linker which does understand to set the main taks stack
size

Stuart

"stuart clark" <stuartlclark@hotmail.comwrites:

Thanks i had thought of the BRUTE froce approach.

i am still having trouble finding anythnig on this gnatmake -stack_size
option. this command i found on the Mac S/X forum is the only place i
have seen it.

Have you seen it before? -largs is linker arguments, i am trying to
find -Wl, -stack_size
-Wl,xxx is an instruction to gcc to pass xxx to the underlying linker
(ld). So gcc sees
-Wl,-stack_size -Wl,0x4000000
and ld sees
-stacksize 0x4000000

This is very likely MS-specific; here, 'man ld' says
-stack_size value
Specifies the size of the stack segment value, where value is a
hexadecimal number rounded to the segment alignment. The
default segment alignment is the target pagesize (currently,
1000 hexadecimal for the PowerPC and for i386). If -stack_addr
is specified and -stack_size is not, a default stack size spe-
cific for the architecture being linked will be used and its
value printed as a warning message. This creates a segment
named __UNIXSTACK .

Ta, thanks again!!!