As is indexes above SHN_LORESERVE will not be handled correctly because
they'll be treated as indexes of sections rather than special values
that should just be copied. This change adds support to copy them
though.
Patch by Jake Ehrlich
Differential Revision: https://reviews.llvm.org/D37393
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@312756 91177308-0d34-0410-b5e6-96231b3b80d8
The current file layout algorithm in llvm-objcopy is simple but
difficult to reason about. It also makes it very complicated to support
nested segments and to support segments that have offsets that come
before a point after the program headers. To support these cases and
simplify one of the most critical parts llvm-objcopy I rewrote the
layout algorithm. Laying out segments first solves most of the issues
encountered by the previous algorithm.
Patch by Jake Ehrlich
Differential Revision: https://reviews.llvm.org/D36494
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311825 91177308-0d34-0410-b5e6-96231b3b80d8
Sometimes LLD will produce a PT_LOAD segment that only covers the
headers (and covers no sections). GNU objcopy does not output the
segment contents for these sections. In particular this is an issue in
building magenta because the final link step for the kernel would
produce just such a PT_LOAD segment. This change is to support this case
and to match what GNU objcopy does in this case.
Patch by Jake Ehrlich
Differential Revision: https://reviews.llvm.org/D36196
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@310149 91177308-0d34-0410-b5e6-96231b3b80d8
This change adds the "-O binary" flag which directs llvm-objcopy to
output the object file to the same format as GNU objcopy does when given
the flag "-O binary". This was done by splitting the Object class into
two subclasses ObjectELF and ObjectBianry which each output a different
format but relay on the same code to read in the Object in Object.
Patch by Jake Ehrlich
Differential Revision: https://reviews.llvm.org/D34480
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@310127 91177308-0d34-0410-b5e6-96231b3b80d8
This change adds the "-O binary" flag which directs llvm-objcopy to
output the object file to the same format as GNU objcopy does when given
the flag "-O binary". This was done by splitting the Object class into
two subclasses ObjectELF and ObjectBianry which each output a different
format but relay on the same code to read in the Object in Object.
Patch by Jake Ehrlich
Differential Revision: https://reviews.llvm.org/D34480
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@310018 91177308-0d34-0410-b5e6-96231b3b80d8
This change adds the "-O binary" flag which directs llvm-objcopy to
output the object file to the same format as GNU objcopy does when given
the flag "-O binary". This was done by splitting the Object class into
two subclasses ObjectELF and ObjectBianry which each output a different
format but relay on the same code to read in the Object in Object.
Patch by Jake Ehrlich
Differential Revision: https://reviews.llvm.org/D34480
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@309768 91177308-0d34-0410-b5e6-96231b3b80d8
The change seems to be failing on bots which are using gcc and bfd.ld
as a host compiler and linker.
This reverts commit r309658.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@309660 91177308-0d34-0410-b5e6-96231b3b80d8
This change adds the "-O binary" flag which directs llvm-objcopy to
output the object file to the same format as GNU objcopy does when given
the flag "-O binary". This was done by splitting the Object class into
two subclasses ObjectELF and ObjectBianry which each output a different
format but relay on the same code to read in the Object in Object.
Patch by Jake Ehrlich
Differential Revision: https://reviews.llvm.org/D34480
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@309658 91177308-0d34-0410-b5e6-96231b3b80d8
As discussed on llvm-dev I've implemented the first basic steps towards
llvm-objcopy/llvm-objtool (name pending).
This change adds the ability to copy (without modification) 64-bit
little endian ELF executables that have SHT_PROGBITS, SHT_NOBITS,
SHT_NULL and SHT_STRTAB sections.
Patch by Jake Ehrlich
Differential Revision: https://reviews.llvm.org/D33964
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@309643 91177308-0d34-0410-b5e6-96231b3b80d8
As discussed on llvm-dev I've implemented the first basic steps towards
llvm-objcopy/llvm-objtool (name pending).
This change adds the ability to copy (without modification) 64-bit
little endian ELF executables that have SHT_PROGBITS, SHT_NOBITS,
SHT_NULL and SHT_STRTAB sections.
Patch by Jake Ehrlich
Differential Revision: https://reviews.llvm.org/D33964
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@309249 91177308-0d34-0410-b5e6-96231b3b80d8
As discussed on llvm-dev I've implemented the first basic steps towards
llvm-objcopy/llvm-objtool (name pending).
This change adds the ability to copy (without modification) 64-bit
little endian ELF executables that have SHT_PROGBITS, SHT_NOBITS,
SHT_NULL and SHT_STRTAB sections.
Patch by Jake Ehrlich
Differential Revision: https://reviews.llvm.org/D33964
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@309032 91177308-0d34-0410-b5e6-96231b3b80d8
As discussed on llvm-dev I've implemented the first basic steps towards
llvm-objcopy/llvm-objtool (name pending).
This change adds the ability to copy (without modification) 64-bit
little endian ELF executables that have SHT_PROGBITS, SHT_NOBITS,
SHT_NULL and SHT_STRTAB sections.
Patch by Jake Ehrlich
Differential Revision: https://reviews.llvm.org/D33964
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@308821 91177308-0d34-0410-b5e6-96231b3b80d8
As discussed on llvm-dev I've implemented the first basic steps towards
llvm-objcopy/llvm-objtool (name pending).
This change adds the ability to copy (without modification) 64-bit
little endian ELF executables that have SHT_PROGBITS, SHT_NOBITS,
SHT_NULL and SHT_STRTAB sections.
Patch by Jake Ehrlich
Differential Revision: https://reviews.llvm.org/D33964
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@308803 91177308-0d34-0410-b5e6-96231b3b80d8
As discussed on llvm-dev I've implemented the first basic steps towards
llvm-objcopy/llvm-objtool (name pending).
This change adds the ability to copy (without modification) 64-bit
little endian ELF executables that have SHT_PROGBITS, SHT_NOBITS,
SHT_NULL and SHT_STRTAB sections.
Patch by Jake Ehrlich
Differential Revision: https://reviews.llvm.org/D33964
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@308559 91177308-0d34-0410-b5e6-96231b3b80d8
