On Windows at least, llvm-strings was crashing if it encountered bytes
that mapped to negative chars, as it was passing these into
std::isgraph and std::isblank functions, resulting in undefined
behaviour. On debug builds using MSVC, these functions verfiy that the
value passed in is representable as an unsigned char. Since the char is
promoted to an int, a value greater than 127 would turn into a negative
integer value, and fail the check. Using the llvm::isPrint function is
sufficient to solve the issue.
Reviewed by: ruiu, mstorsjo
Differential Revision: https://reviews.llvm.org/D53509
llvm-svn: 345137
We have a few functions that virtually all command wants to run on
process startup/shutdown. This patch adds InitLLVM class to do that
all at once, so that we don't need to copy-n-paste boilerplate code
to each llvm command's main() function.
Differential Revision: https://reviews.llvm.org/D45602
llvm-svn: 330046
They don't actually change nay behaviour, as llvm-strings currently
checks the whole object without looking at individual sections anyway.
This allows using llvm-strings in a context that explicitly passes
the -a option.
Differential Revision: https://reviews.llvm.org/D40020
llvm-svn: 318185
The LLVM tools can be used as a replacement for binutils, in which case
it's convenient to create symlinks with the binutils names. Add support
for these symlinks in the build system. As with any other llvm tool
symlinks, the user can limit the installed symlinks by only adding the
desired ones to `LLVM_TOOLCHAIN_TOOLS`.
Differential Revision: https://reviews.llvm.org/D39530
llvm-svn: 317272
Permit specifying the match length (the `-n` or `--bytes` option). The
deprecated `-[length]` form is not supported as an option. This allows the
strings tool to display only the specified length strings rather than the
hardcoded default length of >= 4.
llvm-svn: 286914
Also,
Revert "test: remove the archive before modifying it"
Revert "test: explicitly use gnu format"
This reverts commits r286778, r286729 and r286767, as they are randomly failing
on many bots (AArch64, x86_64).
llvm-svn: 286820
Until we have handling for ignoring unloaded sections, simplify the logic to
the point of triviality. This fixes the scanning of archives, particularly when
embedded in archives.
llvm-svn: 286727
This is a replacement to binutils' string tool. It prints strings found in a
binary (object file, executable, or archive library). It is rather bare and
not functionally equivalent, however, it lays the groundwork necessary for the
strings tool, enabling iterative development of features to reach feature
parity.
llvm-svn: 286556
James Henderson