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This fixes readelf failing to map the interpreter for dynamic
libraries. When an ELF does not have the PT_INTERP header the
StringView will be of the inline capacity of the StringBuilder, not a
null StringView. This would cause readelf not to fallback on the
default interpreter path.
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This is required for the Kernel's usage of LibELF, since Strings do not
expose allocation failure.
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MappedFile is strictly a userspace thing, so it doesn't belong in AK
(which is supposed to be user/kernel agnostic.)
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These were originally in `readelf`, but they became useful in
`file` as well, so they are now available in Elf::Image with a slightly
revised API.
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A copy of the same mapping was found both in LibELF and in the readelf
utility, which uses LibELF; keeping them both is redundant and removing
the duplicate saves (a bit of) space.
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This fixes displaying 64-bit addresses in readelf and also fixes
showing backtraces from core dumps on x86_64.
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Depending on the values it might be difficult to figure out whether a
value is decimal or hexadecimal. So let's make this more obvious. Also
this allows copying and pasting those numbers into GNOME calculator and
probably also other apps which auto-detect the base.
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By constraining two implementations, the compiler will select the best
fitting one. All this will require is duplicating the implementation and
simplifying for the `void` case.
This constraining also informs both the caller and compiler by passing
the callback parameter types as part of the constraint
(e.g.: `IterationFunction<int>`).
Some `for_each` functions in LibELF only take functions which return
`void`. This is a minimal correctness check, as it removes one way for a
function to incompletely do something.
There seems to be a possible idiom where inside a lambda, a `return;` is
the same as `continue;` in a for-loop.
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This implements more of the dlfcn functionality. Most notably:
* It's now possible to dlopen() libraries which were already
loaded at program startup time. This does not cause those
libraries to be loaded twice.
* Errors are reported via dlerror() rather than by crashing
the program.
* Calls to the dl*() functions are thread-safe.
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SPDX License Identifiers are a more compact / standardized
way of representing file license information.
See: https://spdx.dev/resources/use/#identifiers
This was done with the `ambr` search and replace tool.
ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
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According to the Single UNIX Specification, Version 2 that's where
those macros should be defined. This fixes the libiconv port.
This also fixes some (but not all) build errors for the diffutils and nano ports.
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This simply fixes a check which assumed the program header count was
always non zero.
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Good-bye LogStream. Long live AK::Format!
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