libpayload: x86/exec - fix return value passing
The pointer to write the return value to is in %ecx, not %eax. Writing to (%eax) leads to memory corruptions as %eax holds the return value, e.g. would write zero to address zero for a "successful" returning payload. Change-Id: I82df27ae89a9e3d25f479ebdda2b50ea57565459 Signed-off-by: Mathias Krause <minipli@googlemail.com> Reviewed-on: https://review.coreboot.org/18332 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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@ -85,7 +85,7 @@ i386_do_exec:
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*/
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movl 20(%ebp), %ecx
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movl %eax, (%eax)
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movl %eax, (%ecx)
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/* Get the rest of the saved registers */
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popl %ecx
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