openbsd-src/lib/libc/arch/amd64/ at jcs · jcs.org/openbsd-src

jcs.org / openbsd-src

jcs's openbsd hax

openbsd

openbsd-src / lib / libc / arch / amd64 /

at jcs 4 folders 3 files

Clear the sign bit in the QNAN constants used by strtof, strtod and strtold, so passing "nan" and "-nan" produces a NaN with the right sign. Bug reported and diff provided by George Koehler. ok kettenis@

7 years ago

Populate the non-LOAD openbsd.syscalls section (and PT_OPENBSD_SYSCALL) with {uint offset, uint syscall#} entries in libc & ld.so. In libc a few syscall# entries (break, sigprocmask, _tfork, _threxit) are duplicated because additional or inline uses occur (that situation is handled elsewhere) ok kettenis

2 years ago

memmove() entry point is declared with NENTRY() and isn't consecutive with an ENTRY(), so it needs its own endbr64 for IBT

2 years ago

Populate the non-LOAD openbsd.syscalls section (and PT_OPENBSD_SYSCALL) with {uint offset, uint syscall#} entries in libc & ld.so. In libc a few syscall# entries (break, sigprocmask, _tfork, _threxit) are duplicated because additional or inline uses occur (that situation is handled elsewhere) ok kettenis

2 years ago

enable -fret-clean on amd64, for libc libcrypto ld.so kernel, and all the ssh tools. The dynamic objects are entirely ret-clean, static binaries will contain a blend of cleaning and non-cleaning callers.

2 years ago

Populate the non-LOAD openbsd.syscalls section (and PT_OPENBSD_SYSCALL) with {uint offset, uint syscall#} entries in libc & ld.so. In libc a few syscall# entries (break, sigprocmask, _tfork, _threxit) are duplicated because additional or inline uses occur (that situation is handled elsewhere) ok kettenis

2 years ago

Stop exporting the internal _mcount symbol as that's only referenced by the ASM stub, which is also in libc. The compiler only generates invocations of the latter.

6 years ago