Merged today into the upstream GNU C Library code ahead of next month's Glibc 2.42 release is support for SFrame stack tracing with ELF binaries on x86 and AArch64 architectures.

SFrame is a stack trace format that is lightweight and can overcome the run-time performance cost of involving frame pointers and losing a general purpose register. Claudiu Zissulescu of Oracle today upstreamed the necessary Glibc-side patches ahead of the Glibc 2.42 release in August.

The patches merged today included [1]SFrame support on x86-based CPUs , [2]SFrame support on AArch64 CPUs , [3]SFrame stack tracing for ELF files , [4]the new --enable-sframe build option , and relevant tests.

This SFrame stack trace support goes along with the support found in GNU Binutils 2.41+ and further work to be found in Binutils 2.45.

More details on the SFrame work for those interested via the [5]SourceWare.org Wiki and further useful information also available via the [6]Gentoo Wiki .



[1] https://sourceware.org/git?p=glibc.git;a=commit;h=170206b64196c4182e1addd0ce179523cfd6d1dc

[2] https://sourceware.org/git?p=glibc.git;a=commit;h=b231c21fc6bf7443d4949982f6a34f47605a19e5

[3] https://sourceware.org/git/?p=glibc.git;a=commit;h=3360913c37f5c3a0c8737b76321fd5ce2608fcd5

[4] https://sourceware.org/git?p=glibc.git;a=commit;h=3d780a44ebdb3fb780e04682df50da1145bcd98a

[5] https://sourceware.org/binutils/wiki/sframe

[6] https://wiki.gentoo.org/wiki/Project:Toolchain/SFrame