MSGID: 2:280/464.113 5c12e671
Halo Free!

-={ ':read !gcc -march=native -Q --help=target' starts }=-
The following options are target specific:
  -mabi=ABI                     lp64
  -march=ARCH                   armv8-a+crc
  -mbig-endian                  [disabled]
  -mbionic                      [disabled]
  -mcmodel=                     small
  -mcpu=CPU                     
  -mfix-cortex-a53-835769       [enabled]
  -mfix-cortex-a53-843419       [enabled]
  -mgeneral-regs-only           [disabled]
  -mglibc                       [enabled]
  -mlittle-endian               [enabled]
  -mmusl                        [disabled]
  -momit-leaf-frame-pointer     [enabled]
  -moverride=STRING             
  -mpc-relative-literal-loads   [enabled]
  -msign-return-address=        none
  -mstrict-align                [disabled]
  -msve-vector-bits=N           scalable
  -mtls-dialect=                desc
  -mtls-size=                   24
  -mtune=CPU                    
  -muclibc                      [disabled]

  Known AArch64 ABIs (for use with the -mabi= option):
    ilp32 lp64

  Supported AArch64 return address signing scope (for use with
-msign-return-address= option):
    all non-leaf none

  The code model option names for -mcmodel:
    large small tiny

  The possible SVE vector lengths:
    1024 128 2048 256 512 scalable

  The possible TLS dialects:
    desc trad
-={ ':read !gcc -march=native -Q --help=target' ends }=-

For the CPU in both -mcpu and -mtune cortex-a53 is/was being deployed.  Also
worth mentioning is that "-j 4" works EXCEPT when building cmake and for that
"-j 3" fixed the fatal issue.  Also, also, for some source, cmake for instance,
--build=aarch64-unknown-linux-gnu is/was needs to be passed to configure in
order to successfully build.  Other than those few cases the new native
aarch64-raspi3b+-linux-gnu is more than just fine.  I just did a search for
aarch64-raspi3b+-linux-gnu and near as I can tell I am the only one using it so
if you're looking to replicate I would advise using aarch64-unknown-linux-gnu
instead and keep -march=armv8-a+crc, and -mtune=cortex-a53 and/or
-cpu=cortex-a53 for optimizations for the raspberry pi 3b+.

La vida es buena,
Maurice

... No llores por mi tengo vi.
--- GNU bash, version 5.0.0(1)-beta2 (aarch64-raspi3b+-linux-gnu)