2023Q3

changes

• Add Dignus LLC to registered vendors
• [aaelf64] Expand STO_AARCH64_VARIANT_PCS documentation
• [aaelf64] Relax BTI PLT requirement
• [Semihosting] Specify SYS_TIME return value as unsigned
• [aapcs32][aapcs64] Update language mappings to include _BitInt(N)

the specifications included in this release

ABI for the Arm 32-bit Architecture

• ABI for the Arm Architecture - Base Standard - pdf, html
• Procedure Call Standard for the Arm Architecture - pdf, html
• ELF for the Arm Architecture - pdf, html
• DWARF for the Arm Architecture - pdf, html
• Base Platform ABI for the Arm Architecture - pdf, html
• C++ ABI for the Arm Architecture - pdf, html
• Exception Handling ABI for the Arm Architecture - pdf, html
• Run-time ABI for the Arm Architecture - pdf, html
• C Library for the Arm Architecture - pdf, html
• Support for Debugging Overlaid Programs - pdf, html
• Addenda to, and Errata in, the ABI for the ARM Architecture - pdf, html
• ABI Advisory Note - SP 8-byte alignment - pdf, html

ABI for the Arm 64-bit Architecture

• Procedure Call Standard for the Arm 64-bit Architecture - pdf, html
• ELF for the Arm 64-bit Architecture - pdf, html
• DWARF for the Arm 64-bit Architecture - pdf, html
• C++ ABI for the Arm 64-bit Architecture - pdf, html
• Vector Function ABI for the Arm 64-bit Architecture - pdf, html

PAuth ABI Extension

• PAuth ABI Extension to ELF for the Arm 64-bit Architecture - pdf, html

Morello Extension

• Morello Extension to the Procedure Call Standard for the Arm 64-bit Architecture - pdf, html
• Morello Extension to ELF for the Arm 64-bit Architecture - pdf, html
• Morello Extension to DWARF for the Arm 64-bit Architecture - pdf, html

Miscellaneous material

• Semihosting for AArch32 and AArch64 - pdf, html

download bundle

PDFs of all the above specifications have also been bundled in this zip file.