openslx-ng/ipxe.git/src/image, branch v0.9.8

[script] Allow for DOS-style line endings in scripts

2009-06-03T09:13:29+00:00

Windows text editors such as Notepad tend to use CRLF line endings, which breaks gPXE's signature detection for script images. Since scripts are usually very small, they end up falling back to being detected as valid PXE executable images (since there are no signature checks for PXE executables). Executing text files as x86 machine code tends not to work well. Fix by allowing for any isspace() character to terminate the "#!gpxe" signature, and by ensuring that CR characters get stripped during command line parsing. Suggested-by: Shao Miller

[legal] Add a selection of FILE_LICENCE declarations

2009-05-18T07:33:25+00:00

Add FILE_LICENCE declarations to almost all files that make up the various standard builds of gPXE.

[elf] Work around entry point bug in NetBSD kernels

2009-04-24T02:42:34+00:00

NetBSD kernels are multiboot ELF kernels with an entry point incorrectly specified as a virtual address rather than a physical address. Work around this by looking for the segment that could plausibly contain the entry point address (interpreted as either a physical or virtual address), and using that to determine the eventual physical entry point. In the event of any ambiguity, precedence is given to interpretation of the entry point as a physical address.

[segment] Add "Requested memory not available" error message

2009-03-31T03:38:48+00:00

prep_segment() can sometimes fail because an image requests memory that is already in use by gPXE. This will happen if e.g. undionly.kpxe is used to boot memtest86; the memtest86 image is an old-format kernel that needs to be loaded at 9000:0000, but this area of memory may well already be in use by the underlying PXE stack. Add a human-friendly error message, so that the cause is more immediately visible.

[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.