[LIBC][ARM] Enable MMU setup and alignment fault handling during startup. (#204803)
This change adds MMU initialisation for Arm targets and configures
alignment fault behaviour.
This patch:
1. Add MMU setup for AArch64 startup.
- Create a minimal flat-mapped translation table.
- Configure TTBR0_EL1, MAIR_EL1, and TCR_EL1.
- Mark stack/heap memory as execute-never (XN) when possible.
- Enable the MMU and configure alignment checking through SCTLR_EL1.
2. Add MMU setup for ARMA startup:
- Create a flat 1 MB section mapping covering the address space.
- Configure DACR, TTBCR, and TTBR0.
- Enable MMU, instruction cache, and data cache.
- Configure alignment fault handling through SCTLR.
3. Enable unaligned access trapping on Arm M-profile targets when
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[compiler-rt][test][builtins] Check linker support for --start-group (#205610)
This patch is to add a check for the linker whether the --start-group
option is supported before passing to the linker. This can accommodate
different linker requirements.
[mlir][arith] Add ValueBoundsOpInterface external models for the arith operations DivUI and DivSI (#206514)
Add ValueBoundsOpInterface external models for the arith operations
DivUI and DivSI.
www/chromium: update to 149.0.7827.200
* 149.0.7827.200
This update includes 3 security fixes. Please see the Chrome Security Pagefor more information.
[N/A][513138301] High CVE-2026-13281: Integer overflow in Mojo. Reported by Google on 2026-05-14
[N/A][517522620] High CVE-2026-13282: Use after free in Payments. Reported by Google on 2026-05-28
[N/A][522561151] High CVE-2026-13283: Use after free in AdFilter. Reported by Google on 2026-06-11
* 149.0.7827.196
This update includes 18 security fixes. Below, we highlight fixes
that were contributed by external researchers.
Please see the Chrome Security Page for more information.
[TBD][520656244] Critical CVE-2026-13028: Use after free in WebGL. Reported by anonymous on 2026-06-07
[N/A][523591974] Critical CVE-2026-13032: Use after free in WebGL. Reported by Google on 2026-06-13
[N/A][523677844] Critical CVE-2026-13033: Out of bounds read in Blink>InterestGroups. Reported by Google on 2026-06-13
[N/A][523740781] Critical CVE-2026-13038: Use after free in Autofill. Reported by Google on 2026-06-14
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