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path: root/tools/relocate-rela.c
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2018-05-07SPDX: Convert all of our multiple license tags to Linux Kernel styleTom Rini
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have multiple licenses (in these cases, dual license) declared in the SPDX-License-Identifier tag. In this case we change from listing "LICENSE-A LICENSE-B" or "LICENSE-A or LICENSE-B" or "(LICENSE-A OR LICENSE-B)" to "LICENSE-A OR LICENSE-B" as per the Linux Kernel style document. Note that parenthesis are allowed so when they were used before we continue to use them. Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Tom Rini <trini@konsulko.com>
2017-05-05relocate-rela: add missing va_end()xypron.glpk@gmx.de
va_start must always be matched by va_end. The problem was indicated by cppcheck. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2016-12-27relocate-rela: use compiler.h endian macrosJonathan Gray
Use the endian macros from u-boot's compiler.h instead of duplicating the definitions. This also avoids a build error on OpenBSD by removing swap64 which collides with a system definition in endian.h pulled in by inttypes.h. Signed-off-by: Jonathan Gray <jsg@jsg.id.au>
2014-02-13relocate-rela: replace a magic number with sizeof(Elf64_Rela)Masahiro Yamada
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Scott Wood <scottwood@freescale.com> Cc: David Feng <fenghua@phytium.com.cn> Acked-by: Scott Wood <scottwood@freescale.com>
2014-01-09arm64: Add tool to statically apply RELA relocationsScott Wood
ARM64 uses the newer RELA-style relocations rather than the older REL. RELA relocations have an addend in the relocation struct, rather than expecting the loader to read a value from the location to be updated. While this is beneficial for ordinary program loading, it's problematic for U-Boot because the location to be updated starts out with zero, rather than a pre-relocation value. Since we need to be able to run C code before relocation, we need a tool to apply the relocations at build time. In theory this tool is applicable to other newer architectures (mainly 64-bit), but currently the only relocations it supports are for arm64, and it assumes a 64-bit little-endian target. If the latter limitation is ever to be changed, we'll need a way to tell the tool what format the image is in. Eventually this may be replaced by a tool that uses libelf or similar and operates directly on the ELF file. I've written some code for such an approach but libelf does not make it easy to poke addresses by memory address (rather than by section), and I was hesitant to write code to manually parse the program headers and do the update outside of libelf (or to iterate over sections) -- especially since it wouldn't get test coverage on things like binaries with multiple PT_LOAD segments. This should be good enough for now to let the manual relocation stuff be removed from the arm64 patches. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: David Feng <fenghua@phytium.com.cn>