com32: export the filename of a com32 module to the module itself

Export the filename of the com32 module to the module itself, setting
argv[0].

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

1 files changed, 2 insertions, 14 deletions

diff --git a/doc/comboot.txt b/doc/comboot.txt
index 4ef10f45..81d06020 100644
--- a/doc/comboot.txt
+++ b/doc/comboot.txt
@@ -79,7 +79,7 @@ The following arguments are passed to the program on the stack:
 
  Address  Size	Meaning
  [ESP]    dword Return (termination) address
- [ESP+4]  dword	Number of additional arguments (currently 7)
+ [ESP+4]  dword	Number of additional arguments (currently 8)
  [ESP+8]  dword	Pointer to the command line arguments (null-terminated string)
  [ESP+12] dword Pointer to INT call helper function
  [ESP+16] dword Pointer to low memory bounce buffer
@@ -87,19 +87,7 @@ The following arguments are passed to the program on the stack:
  [ESP+24] dword Pointer to FAR call helper function (new in 2.05)
  [ESP+28] dword Pointer to CDECL helper function (new in 3.54)
  [ESP+32] dword Amount of memory controlled by the Syslinux core (new in 3.74)
-
-This corresponds to the following C prototype, available in the file
-com32/include/com32.h:
-
-/* The standard prototype for _start() */
-int _start(unsigned int __nargs,
-	   char *__cmdline,
-	   void (*__intcall)(uint8_t, com32sys_t *, com32sys_t *),
-	   void *__bounce_ptr,
-	   unsigned int __bounce_len,
-	   void (*__farcall)(uint32_t, com32sys_t *, com32sys_t *),
-	   int (*__cfarcall)(uint32_t, void *, size_t)
-	   );
+ [ESP+36] dword Pointer to the filename of the com32 module (new in 3.86)
 
 The intcall helper function can be used to issue BIOS or Syslinux API
 calls, and takes the interrupt number as first argument.  The second