Fork of ipxe; additional commands and features https://git.openslx.org/openslx-ng/ipxe.git/atom/src/arch/i386/scripts/linux.lds?h=openslx 2023-01-22T12:38:03+00:00 2023-01-22T12:38:03+00:00 Michael Brown 2023-01-22T12:05:14+00:00 urn:sha1:475c0dfa8e5b841ff29d3fbf7d6828e3cdd05ad5 Reduce duplication between i386 and x86_64 by providing a single shared linker script that both architectures can include. Signed-off-by: Michael Brown <mcb30@ipxe.org> 2022-01-13T14:12:44+00:00 Michael Brown 2022-01-13T14:10:03+00:00 urn:sha1:f4f9adf618cd85d330a896e1f721f3aa78d2409d SBAT defines an encoding for security generation numbers stored as a CSV file within a special ".sbat" section in the signed binary. If a Secure Boot exploit is discovered then the generation number will be incremented alongside the corresponding fix. Platforms may then record the minimum generation number required for any given product. This allows for an efficient revocation mechanism that consumes minimal flash storage space (in contrast to the DBX mechanism, which allows for only a single-digit number of revocation events to ever take place across all possible signed binaries). Add SBAT metadata to iPXE EFI binaries to support this mechanism. Signed-off-by: Michael Brown <mcb30@ipxe.org> 2013-07-15T22:50:54+00:00 Michael Brown 2013-07-15T22:08:50+00:00 urn:sha1:ca319873bf43d5d955cc3d8770b5b2415798907d Our use of --gc-sections causes the linker to discard the symbols defined by FILE_LICENCE(), meaning that the resulting licence determination is incomplete. We must use the KEEP() directive in the linker script to force the linker to not discard the licence symbols. Using KEEP(*(COMMON)) would be undesirable, since there are some symbols in COMMON which we may wish to discard. Fix by placing symbols defined by PROVIDE_SYMBOL() (which is used by FILE_LICENCE()) into a special ".provided" section, which we then mark with KEEP(). All such symbols are zero-length, so there is no cost in terms of the final binary size. Since the symbols are no longer in COMMON, the linker will reject symbols with the same name coming from multiple objects. We therefore append the object name to the licence symbol, to ensure that it is unique. Reported-by: Marin Hannache <git@mareo.fr> Signed-off-by: Michael Brown <mcb30@ipxe.org> 2011-03-27T20:03:05+00:00 Piotr Jaroszyński 2010-07-01T01:47:52+00:00 urn:sha1:b604e8a388702df3cd4d3d64cf42dfc361b235c0 Make the allocators used by malloc and linux_umalloc valgrindable. Include valgrind headers in the codebase to avoid a build dependency on valgrind. Signed-off-by: Piotr Jaroszyński <p.jaroszynski@gmail.com> Modified-by: Michael Brown <mcb30@ipxe.org> Signed-off-by: Michael Brown <mcb30@ipxe.org> 2011-02-23T21:12:56+00:00 Michael Brown 2011-02-23T21:12:56+00:00 urn:sha1:030e5a064e5f7252b3b77a27c78169f4a5c974c5 Some binutils versions will drag in an object to satisfy the entry symbol; some won't. Try to cope with this exciting variety of behaviour by ensuring that all entry symbols are unique. Remove the explicit inclusion of the prefix object on the linker command line, since the entry symbol now provides all the information needed to identify the prefix. Signed-off-by: Michael Brown <mcb30@ipxe.org> 2011-02-22T21:02:00+00:00 Michael Brown 2011-02-22T19:36:24+00:00 urn:sha1:623469de5d307ee6d762ad30988ffbfbc53741b6 Use -ffunction-sections, -fdata-sections, and --gc-sections to automatically prune out any unreferenced sections. This saves around 744 bytes (uncompressed) from the rtl8139.rom build. Signed-off-by: Michael Brown <mcb30@ipxe.org> 2010-08-19T11:25:06+00:00 Piotr Jaroszyński 2010-04-07T23:25:38+00:00 urn:sha1:e84db1121b206736eb2958322abd0830b068132d Add makefiles, ld scripts and default config for linux platform for both i386 and x86_64. Signed-off-by: Piotr Jaroszyński <p.jaroszynski@gmail.com> Signed-off-by: Michael Brown <mcb30@ipxe.org>