* [ECOS] dynamic location for argc, argv
@ 2007-08-09 15:22 Slide
2007-08-09 15:46 ` Andrew Lunn
0 siblings, 1 reply; 2+ messages in thread
From: Slide @ 2007-08-09 15:22 UTC (permalink / raw)
To: ecos-discuss
I noticed in the CDL there is a CYGDAT_LIBC_ARGUMENTS item that allows
you to specify arguments to main when using the ISO C library. My
command line arguments can be in various locations in memory, is there
another method for setting this up dynamically?
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* Re: [ECOS] dynamic location for argc, argv
2007-08-09 15:22 [ECOS] dynamic location for argc, argv Slide
@ 2007-08-09 15:46 ` Andrew Lunn
0 siblings, 0 replies; 2+ messages in thread
From: Andrew Lunn @ 2007-08-09 15:46 UTC (permalink / raw)
To: Slide; +Cc: ecos-discuss
On Thu, Aug 09, 2007 at 08:22:40AM -0700, Slide wrote:
> I noticed in the CDL there is a CYGDAT_LIBC_ARGUMENTS item that allows
> you to specify arguments to main when using the ISO C library. My
> command line arguments can be in various locations in memory, is there
> another method for setting this up dynamically?
Sure. main() is called by a default implementation of
cyg_user_start(). See
packages/language/c/libc/startup/current/src/cstartup.cxx. You could
provide your own cyg_user_start() which calls your own implementation
of the function cyg_libc_invoke_main(). You can then setup argc & argv
however you want before calling main().
Andrew
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2007-08-09 15:22 [ECOS] dynamic location for argc, argv Slide
2007-08-09 15:46 ` Andrew Lunn
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