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2021-07-23LibJS: Implement Temporal.PlainDate.prototype.withCalendarIdan Horowitz
2021-07-23LibJS: Add missing PlainDateTime case in ToTemporalDateIdan Horowitz
2021-07-23Kernel: Add missing .globl definitionsGunnar Beutner
This ensures that we can properly take the address of these symbols in other code.
2021-07-23Kernel: Mark a few more things as READONLY_AFTER_INITGunnar Beutner
2021-07-23Kernel: Always build the kernel without default libsGunnar Beutner
When building the kernel from within SerenityOS we would link it against default libs which doesn't really make sense to me.
2021-07-23Kernel: Make some of the assembly code position-independent on x86_64Gunnar Beutner
2021-07-23Prekernel: Don't build the prekernel as a PIE imageGunnar Beutner
This is unnecessary because the prekernel is always loaded at a known base address.
2021-07-23Kernel: Make -pie work for x86_64Gunnar Beutner
2021-07-23Kernel: Use StringView when parsing pledges in sys$pledge(..)Brian Gianforcaro
This ensures no potential allocation as in some cases the pledge char* could be promoted to AK::String by the compiler to execute the comparison.
2021-07-23Tests: Add test coverage for sys$pledge(..) argument validationBrian Gianforcaro
2021-07-23Kernel: Fix bug where we half apply pledges in sys$pledge(..)Brian Gianforcaro
This bug manifests it self when the caller to sys$pledge() passes valid promises, but invalid execpromises. The code would apply the promises and then return an error for the execpromises. This leaves the user in a confusing state, as the promises were silently applied, but we return an error suggesting the operation has failed. Avoid this situation by tweaking the implementation to only apply the promises / execpromises after all validation has occurred.
2021-07-23Kernel: Migrate sys$pledge to use the KString APIBrian Gianforcaro
This avoids potential unhandled OOM that's possible with the old copy_string_from_user API.
2021-07-23Kernel: Annotate kernel_base and friends as READONLY_AFTER_INITBrian Gianforcaro
We don't want kernel_base to be modifiable by an attacker or a stray memory scribbler bug, so lets mark it as READONLY_AFTER_INIT.
2021-07-23Tests: Add test coverage for sys$unveil(..) argument validationBrian Gianforcaro
2021-07-23Kernel: Migrate sys$unveil to use the KString APIBrian Gianforcaro
This avoids potential unhandled OOM that's possible with the old copy_string_from_user API.
2021-07-23Kernel: Use StringView literals for fs_type match in sys$mount(..)Brian Gianforcaro
2021-07-23Kernel: Remove another ARCH ifdef using RegisterState::flags()Brian Gianforcaro
2021-07-23TextEditor: Allow starting with a file argument that doesn't existItamar
If TextEditor is started with an argument for a file that doesn't exist, we now allow editing it. The file will be created once it is saved.
2021-07-23LibRegex: Switch to east-const styleAli Mohammad Pur
2021-07-23LibRegex: Clear previous capture group contents in ECMA262 modeAli Mohammad Pur
ECMA262 requires that the capture groups only contain the values from the last iteration, e.g. `((c)(a)?(b))` should _not_ contain 'a' in the second capture group when matching "cabcb".
2021-07-23CI: Skip commit linter line length check on lines that contain URLsIdan Horowitz
2021-07-23LibWeb: Manually convert the js bigint to a wasm i64 valueAli Mohammad Pur
SignedBigInteger::export() generates sign-magnitude, but the native i64 type uses 2's comp, make this work by exporting it as unsigned and tweaking the sign later.
2021-07-23LibWeb: Read the correct types in WebAssembly's to_js_value()Ali Mohammad Pur
A wasm value containing an F64 does not contain a float, etc.
2021-07-23Kernel: No need to use safe_memcpy() when handling an inode faultAndreas Kling
We're copying the inode contents from a stack buffer into a page that we just quick-mapped, so there's no reason for this memcpy() to fail.
2021-07-23LibWeb: Dont try to parse "data" urls as linksstelar7
2021-07-23Kernel: Reduce useful ROP gadgets by zeroing used function registersBrian Gianforcaro
GCC-11 added a new option `-fzero-call-used-regs` which causes the compiler to zero function arguments before return of a function. The goal being to reduce the possible attack surface by disarming ROP gadgets that might be potentially useful to attackers, and reducing the risk of information leaks via stale register data. You can find the GCC commit below[0]. This is a mitigation I noticed on the Linux KSPP issue tracker[1] and thought it would be useful mitigation for the SerenityOS Kernel. The reduction in ROP gadgets is observable using the ropgadget utility: $ ROPgadget --nosys --nojop --binary Kernel | tail -n1 Unique gadgets found: 42754 $ ROPgadget --nosys --nojop --binary Kernel.RegZeroing | tail -n1 Unique gadgets found: 41238 The size difference for the i686 Kernel binary is negligible: $ size Kernel Kernel.RegZerogin text data bss dec hex filename 13253648 7729637 6302360 27285645 1a0588d Kernel 13277504 7729637 6302360 27309501 1a0b5bd Kernel.RegZeroing We don't have any great workloads to measure regressions in Kernel performance, but Kees Cook mentioned he measured only around %1 performance regression with this enabled on his Linux kernel build.[2] References: [0] https://github.com/gcc-mirror/gcc/commit/d10f3e900b0377b4760a090b0f90371bcef01686 [1] https://github.com/KSPP/linux/issues/84 [2] https://lore.kernel.org/lkml/20210714220129.844345-1-keescook@chromium.org/
2021-07-23LibWeb: Fix that empty event handlers return null instead of crashingdavidot
2021-07-23LibJS: Implement Temporal.PlainDateTime.prototype.getISOFields()Linus Groh
2021-07-23LibJS: Implement Temporal.PlainDateTime.prototype.toPlainDate()Linus Groh
2021-07-23LibJS: Fix return type of PlainDateTime::iso_{milli,micro,nano}second()Linus Groh
2021-07-23Kernel: Simplify VMObject locking & page fault handlersAndreas Kling
This patch greatly simplifies VMObject locking by doing two things: 1. Giving VMObject an IntrusiveList of all its mapping Region objects. 2. Removing VMObject::m_paging_lock in favor of VMObject::m_lock Before (1), VMObject::for_each_region() was forced to acquire the global MM lock (since it worked by walking MemoryManager's list of all regions and checking for regions that pointed to itself.) With each VMObject having its own list of Regions, VMObject's own m_lock is all we need. Before (2), page fault handlers used a separate mutex for preventing overlapping work. This design required multiple temporary unlocks and was generally extremely hard to reason about. Instead, page fault handlers now use VMObject's own m_lock as well.
2021-07-23Kernel: Remove unused MAP_SHARED_ZERO_PAGE_LAZILY code pathAndreas Kling
2021-07-23Hearts: Avoid redrawing the UI unnecessarilyGunnar Beutner
2021-07-22CrashDaemon: Remove BACKTRACE_DEBUG debugging codeAndreas Kling
This thing seems to work fine, no need to hang on to old debug code.
2021-07-22DynamicLoader: Don't truncate dynamic section address on x86_64Andreas Kling
2021-07-22Kernel: Convert Region to east-const styleAndreas Kling
2021-07-22Assistant: Only open one Assistant at oncePeter Elliott
I found myself accidentally opening two assistants at once with the Window+Space shortcut. Since only one assistant window is usable at the same time, I made assistant only spawn 1 instance at most.
2021-07-22LibCore: Add LockFile, a filesystem based mutexPeter Elliott
This API wraps flock(2) and also handles the file creation and deletion when the LockFile goes out of scope.
2021-07-22UserspaceEmulator: Move to using the new SoftFPUHendiadyoin1
2021-07-22UserspaceEmulator: Implement SoftFPU instructionsHendiadyoin1
This implements almost all instructions related to the FPU, including all MMX instructions as well. A lot of these were copied and adjusted from the SoftCPU implementation. The next big milestone would be QNan detection and ShadowValue handling.
2021-07-22UserspaceEmulator: Sketch out a SoftFPU interfaceHendiadyoin1
2021-07-22AK: Add char SIMD typesHendiadyoin1
These are used in intrinsics, which do not recognize any signed version of the char type
2021-07-22LibX86: Add missing MovD and MovQ instructionsHendiadyoin1
These are placeholders for now
2021-07-22LibX86: Use names closer to the spec for the ModrmHendiadyoin1
This gets rid of a lot of magic number shifts and ands.
2021-07-22LibWeb: Resolve CSS text-decoration from value listSam Atkins
This detects and resolves these in the text-decoration property, in any order: - text-decoration-color - text-decoration-line - text-decoration-style Only the solid underline renders, but all three sub-properties are assigned correctly.
2021-07-22LibWeb: Resolve background properties from ValueListStyleValueSam Atkins
As before, there are several sub-properties that we do not support, and we ignore anything after the first comma.
2021-07-22LibWeb: Implement ImageStyleValue parsingSam Atkins
Later we will want to make a distinction between URL and Image values, but this works for now.
2021-07-22LibWeb: Resolve CSS font property from value listSam Atkins
The font property now resolves into its various parts: - font-family - font-weight - font-size - font-style - line-height The font-variant and font-stretch parts are left unparsed since LibWeb doesn't know how to render those. Added `fonts.html` as a test for various forms of `font` declarations, based on the examples in the spec.
2021-07-22LibWeb: Resolve CSS list-style from value listSam Atkins
This resolves the three sub-properties, appearing in any order: - list-style-image - list-style-position - list-style-type Added `list-style-position` values to support this, though they are not yet used in rendering.
2021-07-22LibWeb: Resolve CSS flex/flex-flow from value listSam Atkins
Also moved the 'flex' code in StyleResolver to be next to the 'flex-flow' code, because that seemed more reasonable.
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