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Currently TimeManagement wont compile on AARCH64, so it is not included.
This creates a link error since format.cpp now relies on functionality
in TimeManagement.cpp to add timestamps to log lines.
This PR disables that functionality for AARCH64 builds until
TimeManagement will compile.
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This isn't a complete conversion to ErrorOr<void>, but a good chunk.
The end goal here is to propagate buffer allocation failures to the
caller, and allow the use of TRY() with formatting functions.
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When I added this code in 1472f6d, I forgot to add tests for it. That's
why I didn't realize that the values were appended to the wrong
FormatBuilder object, so an empty string was returned instead of the
expected "nan"/"inf". This made debugging some FPU issues with the
ScummVM port significantly more difficult.
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This is very helpful when trying to better understand how long certain
things take. :^)
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Creating a String object from the formatted data is unnecessary, as it
immediately gets turned into a StringView anyways.
With this change, we will no longer allocate on the heap when printing
`VirtualAddress`, `VirtualRange` and `InodeIdentifier` objects, which is
a step towards stronger OOM hardening.
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This variant of dbgputstr does not lock the global log lock, as it is
called before the current or any other processor was initialized,
meaning that:
A) The $gs base was not setup yet, so we cannot enter into critical
sections, and as a result we cannot use SpinLocks
B) No other processors may try to print at the same time anyway
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This caused a null pointer dereference on early boot, since the gs_base
was not set yet.
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This silences a overeager warning in sonar cloud, warning that
slicing could occur with `VariadicFormatParams` which derives from
`TypeErasedFormatParams`.
Reference:
https://sonarcloud.io/project/issues?id=SerenityOS_serenity&issues=AXuVPBO_k92xXUF3qWsm&open=AXuVPBO_k92xXUF3qWsm
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And let id() be the non-static version that gives you the ID of a
Processor object.
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This is primarily to be able to remove the GenericLexer include out of
Format.h as well. A subsequent commit will add AK::Result to
GenericLexer, which will cause naming conflicts with other structures
named Result. This can be avoided (for now) by preventing nearly every
file in the system from implicitly including GenericLexer.
Other changes in this commit are to add the GenericLexer include to
files where it is missing.
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Without this patch, we would end up printing garbage values when we
encountered floating point infinity or NaN values, and also triggered
UBSAN with Clang. This added code models `std::format`'s behavior: the
sign is added the same way as with normal values and the strings 'nan'
and 'inf' are printed.
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We don't want to be constructing StringViews at runtime if we don't have
to in Formatter code.
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When performing arithmetic with long doubles/floats, we want to avoid
floating point promotion and narrowing.
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This replaces all remaining usages of ctype.h in AK with
CharacterTypes.h.
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This uses the same syntax as zero padding integers:
String::formatted("{:0.5}", 1.234) => "1.23400"
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This will just hexdump the given value.
Note that not all formatters respect this, the ones that do are:
- (Readonly)Bytes: formatter added in this commit
- StringView / char const*
- integral types
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In case the write was to stderr/stdout, and it just so happened to fail
because of an issue like "the pty is gone", VERIFY() would end up
calling vout() back to write to stderr, which would then fail forever
until the stack is exhausted.
"Fixes" the issue where the Shell would crash in horrible ways when the
terminal is closed.
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As we removed the support of VBE modesetting that was done by GRUB early
on boot, we need to determine if we can modeset the resolution with our
drivers, and if not, we should enable text mode and ensure that
SystemServer knows about it too.
Also, SystemServer should first check if there's a framebuffer device
node, which is an indication that text mode was not even if it was
requested. Then, if it doesn't find it, it should check what boot_mode
argument the user specified (in case it's self-test). This way if we
try to use bochs-display device (which is not VGA compatible) and
request a text mode, it will not honor the request and will continue
with graphical mode.
Also try to print critical messages with mininum memory allocations
possible.
In LibVT, We make the implementation flexible for kernel-specific
methods that are implemented in ConsoleImpl class.
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This makes debugging multi-threaded programs easier.
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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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Problem:
- Type and size information is known at compile-time, but computations
are being performed using run-time parameters.
Solution:
- Move function arguments to be template arguments.
- Convert to `consteval` where possible.
- Decorate functions with `constexpr` which are used in both run-time
and compile-time contexts.
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Floating point numbers are casted to i64 and passed to the integer
formatting logic, and the floating point portion of the number is
handled separately. However, casting to i64 when the number is between
-1.0 and 0.0 produces 0, so the sign would be lost. This commit fixes
that by using put_u64 instead, which allows us to manually provide the
is_negative flag.
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This commit makes the user-facing StdLibExtras templates and utilities
arguably more nice-looking by removing the need to reach into the
wrapper structs generated by them to get the value/type needed.
The C++ standard library had to invent `_v` and `_t` variants (likely
because of backwards compat), but we don't need to cater to any codebase
except our own, so might as well have good things for free. :^)
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This is a pretty naive implementation that works well. The precision
parameter is interpreted as "maximum precision" instead of "minimum
precision", which in my opinion is the most useful interpretation.
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Good-bye LogStream. Long live AK::Format!
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(...and ASSERT_NOT_REACHED => VERIFY_NOT_REACHED)
Since all of these checks are done in release builds as well,
let's rename them to VERIFY to prevent confusion, as everyone is
used to assertions being compiled out in release.
We can introduce a new ASSERT macro that is specifically for debug
checks, but I'm doing this wholesale conversion first since we've
accumulated thousands of these already, and it's not immediately
obvious which ones are suitable for ASSERT.
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In Serenity, size_t is defined as u32, thus static_cast<size_t>(value)
truncates the value.
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Arbitrarily split up to make git bisect easier.
These unnecessary #include's were found by combining an automated tool (which
determined likely candidates) and some brain power (which decided whether
the #include is also semantically superfluous).
My favorite #include:
#include "Applications/Piano/Music.h" // You can't have too much music in life!
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Formatter<char> internally uses Formatter<StringView> when in
Mode::Character, but that would only accept Mode::{Default,String} and
ASSERT_NOT_REACHED() otherwise, causing String::formatted("{:c}", 'a')
to crash
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This commit also removes a few functions like raw_out and vwarn. If we
want to write raw output, we can do this as follows:
out("{}", "Hello, World!");
The vout stuff isn't really public API anyways, so no need for another
vwarn.
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We are adding the process name as prefix and a newline as suffix to any
message written to debug. Thus, the following doesn't make any sense:
for (u8 byte : bytes)
dbg("{:02x} ", byte);
dbgln();
Which function call would put the prefix? This doesn't make any sense,
thus these functions must go.
The example above could be converted to:
StringBuilder builder;
for (u8 byte : bytes)
builder.appendff("{:02x} ", byte);
dbgln("{}", builder.build());
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Formatter is specialized in the header file. The definition in the
implementation file is extraneous and has no effect. Simply removing
it so that there is no confusion.
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When we write the format specifier '{:#08x}' we are asking for eight
significant digits, zero padding and the prefix '0x'.
However, previously we got only six significant digits because the
prefix counted towards the width. (The number '8' here is the total
width and not the number of significant digits.)
Both fmtlib and printf shared this behaviour. However, I am introducing
a special case here because when we do zero padding we really only care
about the digits and not the width.
Notice that zero padding is a special case anyways, because zero padding
goes after the prefix as opposed to any other padding which goes before
it.
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In the future all (normal) output should be written by any of the
following functions:
out (currently called new_out)
outln
dbg (currently called new_dbg)
dbgln
warn (currently called new_warn)
warnln
However, there are still a ton of uses of the old out/warn/dbg in the
code base so the new functions are called new_out/new_warn/new_dbg. I am
going to rename them as soon as all the other usages are gone (this
might take a while.)
I also added raw_out/raw_dbg/raw_warn which don't do any escaping,
this should be useful if no formatting is required and if the input
contains tons of curly braces. (I am not entirely sure if this function
will stay, but I am adding it for now.)
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