The $PnP probe has been found to lock up at least one machine for
reasons unknown.  Drop it; instead, burn the extra few bytes in the
bootsector to save away ES:DI for later restore.

Add support for sha256crypt and sha512crypt to the library.  Not yet
included in the menu system, need to decide if it's worth 10K or if
the code can be realistically compacted.

Put (disabled) debugging code in shuffle.c and load_linux.c for future
needs.

Create NASMOPT variable, defaulting to -O9999.  Mostly there to test
beta versions of NASM.

Print something other than just "invalid ELF file or insufficient
memory" when the specific error is that a specific memory segment is
not available.

A bunch of glibc header files were bogusly included.  We should not
depend on having a 32-bit glibc installed, since we don't use it.

Simple test program which simply invokes syslinux_local_boot().

More needs to be done; the code has console I/O at the library level,
which isn't good.

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

This patch
- add a new pci_dev_info structure :
    It contains additional informations about the pci devices like
    the product/vendor name and the associated linux kernel module

- add a get_name_from_pci_ids() function in pci/scan.c
    This function reads a pci.ids file from the boot device.
    Then it assign for each pci device, its vendor/product name.
    You just have to put this file in the root directory of your
     isolinux/pxelinux (i.e the root directory of your tfptboot server
    if you are using pxelinux).

- add a get_module_name_from_pci_ids() function in pci/scan.c
    This function reads a modules.pcimap file from the boot device.
    Then it assign for each pci_device its linux kernel module.
    You just have to put this file in the root directory of your
     isolinux/pxelinux (i.e the root directory of your tfptboot server
    if you are using pxelinux).

- Add a call to get_name_from_pci_ids() into the pcitest COM32 module
- Add a call to get_module_name_from_pci_ids() into the pcitest COM32 module

- Fixing typedef struct { ... } s_pci...; by struct pci... {};
- Improving comments
- Fixing the memory allocation to prevent leaks

With this patch, pcitest.c32 act like lspci plus a bonus by displaying
the linux kernel module assiocated to each pci device.

Signed-off-by:Erwan Velu <erwan.velu@free.fr>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>

A very simple module to reboot the machine.