libpayload: x86/exec - fix argc/argv value passing
According to coreboot’s payload API [1] the argc value should be passed at stack offset 0x10, so we need to push a dummy value to comply to the API. [1] https://www.coreboot.org/Payload_API Change-Id: Id20424185a5bf7e4d94de1886a2cece3f3968371 Signed-off-by: Mathias Krause <minipli@googlemail.com> Reviewed-on: https://review.coreboot.org/18333 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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@ -53,12 +53,17 @@ i386_do_exec:
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pushl %ecx
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pushl %ebp
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/* Push the argc and argv pointers on to the stack */
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/* Push argc and argv on to the stack.
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*
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* We need to put a dummy value inbetween, as argc should be at offset
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* 0x10, according to the payload API.
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*/
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movl 12(%ebp), %esi
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movl 16(%ebp), %ecx
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pushl %esi
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pushl $0
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pushl %ecx
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/* Move a "magic" number on the stack - the other
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