openbsd-src/lib/libc/arch/ at fan · jcs.org/openbsd-src

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openbsd-src / lib / libc / arch /

at fan 13 folders 1 file

Since all arm64 assembly code in libc uses the ENTRY* macros from <machine/asm.h> they are already get the necessary "bti c" instructions. Passi the -mmark-bti-property option to mark the corresponding object files as having BTI support.

3 years ago

SYS___threxit cannot fail, but this integration looks like a gadget. Put a hard-trap instruction after the syscall instruction. ok kettenis mortimer

5 years ago

Add retguard to amd64 syscalls.

3 years ago

Use a consistent comment to explain why 32bit archs set their second return register to -1 in the syscall error path ("for lseek").

3 years ago

Use a consistent comment to explain why 32bit archs set their second return register to -1 in the syscall error path ("for lseek").

3 years ago

spelling fixes; from paul tagliamonte any changes not taken noted on tech, but chiefly here i did not take the cancelation - cancellation changes;

3 years ago

_C_LABEL() and _ASM_LABEL() are no longer useful in the "everything is ELF" world. Eliminate use of them in m88k code.

3 years ago

remove --no-execute-only seatbelt

3 years ago

Use a consistent comment to explain why 32bit archs set their second return register to -1 in the syscall error path ("for lseek").

3 years ago

_C_LABEL() and _ASM_LABEL() are no longer useful in the "everything is ELF" world. Eliminate use of them in powerpc64 code.

3 years ago

spelling fixes; from paul tagliamonte any changes not taken noted on tech, but chiefly here i did not take the cancelation - cancellation changes;

3 years ago

Use a consistent comment to explain why 32bit archs set their second return register to -1 in the syscall error path ("for lseek").

3 years ago

remove seatbelt

3 years ago

Add ENTRY_NB() macro for doing an ASM function entry without setting the binding to global (NB == "no binding"), as clang 13 is now warning about changing the binding from global to weak.

4 years ago