openslx-ng/ipxe.git/src/image, branch v0.9.7

[image] Allow for zero embedded images

2009-02-24T05:57:56+00:00

Having a default script containing #!gpxe autoboot can cause problems when entering commands to load and start a kernel manually; the default script image will still be present when the kernel is started and so will be treated as an initrd. It is possible to work around this by typing "imgfree" before any other commands, but this is counter-intuitive. Fix by allowing the embedded image list to be empty (in which case we just call autoboot()), and making this the default. Reported by alkisg@gmail.com.

[comboot] Allow for tail recursion of COMBOOT images

2009-02-17T00:47:35+00:00

Multi-level menus via COMBOOT rely on the COMBOOT program being able to exit and invoke a new COMBOOT program (the next menu). This works, but rapidly (within about five iterations) runs out of space in gPXE's internal stack, since each new image is executed in a new function context. Fix by allowing tail recursion between images; an image can now specify a replacement image for itself, and image_exec() will perform the necessary tail recursion.

[image] Avoid claiming zero-length images as valid

2009-02-16T00:30:48+00:00

Both the script and PXE images types will claim a zero-length image. Inhibit this to avoid end-user surprises.

[image] Allow multiple embedded images

2009-02-16T00:30:36+00:00

This patch extends the embedded image feature to allow multiple embedded images instead of just one. gPXE now always boots the first embedded image on startup instead of doing the hardcoded DHCP boot (aka autoboot). Based heavily upon a patch by Stefan Hajnoczi .

[i386] Add explicit flags and type on all .section declarations

2009-02-15T10:59:53+00:00

Try to avoid future problems caused by implicit section flags and/or type information by instituting a policy that all .section declarations must explicitly state the flags and type. Most of this change was achieved using perl -pi \ -e 's/".text"$/".text", "ax", \@progbits/ ; ' \ -e 's/".text16"$/".text16", "ax", \@progbits/ ; ' \ -e 's/".text16.null"$/".text16.null", "ax", \@progbits/ ; ' \ -e 's/".text16.data"$/".text16.data", "aw", \@progbits/ ; ' \ -e 's/".data"$/".data", "aw", \@progbits/ ; ' \ -e 's/".data16"$/".data16", "aw", \@progbits/ ; ' \ -e 's/".bss"$/".bss", "aw", \@nobits/ ; ' \ -e 's/".bss16"$/".bss16", "aw", \@nobits/ ; ' \ -e 's/".prefix"$/".prefix", "ax", \@progbits/ ; ' \ -e 's/".prefix.lib"$/".prefix.lib", "awx", \@progbits/ ; ' \ -e 's/".prefix.data"$/".prefix.data", "aw", \@progbits/ ; ' \ -e 's/".weak"$/".weak", "a", \@nobits/ ; ' \ `git grep -l '\.section'`

[efi] Add efi_strerror()

2008-11-19T19:22:49+00:00

EFI_STATUS is defined as an INTN, which maps to UINT32 (i.e. unsigned int) on i386 and UINT64 (i.e. unsigned long) on x86_64. This would require a cast each time the error status is printed. Add efi_strerror() to avoid this ickiness and simultaneously enable prettier reporting of EFI status codes.

[i386] Change [u]int32_t to [unsigned] int, rather than [unsigned] long

2008-11-19T19:15:44+00:00

This brings us in to line with Linux definitions, and also simplifies adding x86_64 support since both platforms have 2-byte shorts, 4-byte ints and 8-byte long longs.

[efi] Add EFI image format and basic runtime environment

2008-10-13T09:24:14+00:00

We have EFI APIs for CPU I/O, PCI I/O, timers, console I/O, user access and user memory allocation. EFI executables are created using the vanilla GNU toolchain, with the EXE header handcrafted in assembly and relocations generated by a custom efilink utility.

[pcbios] Add extra debugging messages relating to the system memory map

2008-09-07T20:38:41+00:00

[bzimage] Kill off the initrd image type

2008-07-08T00:30:11+00:00

We can just treat all non-kernel images as initrds, which matches our behaviour for multiboot kernels. This allows us to eliminate initrd as an image type, and treat the "initrd" command as just another synonym for "imgfetch".