build,aix: skip ld missing symbols warning

[refack]

On a typical node CI job we get ~68.5K of these, e.g for https://ci.nodejs.org/job/node-test-commit-aix/23246/nodes=aix61-ppc64/consoleText:

... ld: 0711-319 WARNING: Exported symbol not defined: v8::internal::BaseBuiltinsFromDSLAssembler::Cast16FixedDoubleArray(v8::internal::compiler::TNode<v8::internal::HeapObject>, v8::internal::compiler::CodeAssemblerLabel*) ld: 0711-319 WARNING: Exported symbol not defined: v8::internal::BaseBuiltinsFromDSLAssembler::Convert5ATSmi8ATintptr(v8::internal::compiler::TNode<v8::internal::IntPtrT>) ld: 0711-319 WARNING: Exported symbol not defined: v8::internal::BaseBuiltinsFromDSLAssembler::Convert5ATSmi8ATuint32(v8::internal::compiler::TNode<v8::internal::Uint32T>) ... 

Checklist

• make -j4 test (UNIX), or vcbuild test (Windows) passes
• documentation is changed or added
• commit message follows commit guidelines

[nodejs-github-bot]

Lite-CI: https://ci.nodejs.org/job/node-test-pull-request-lite-pipeline/3568

[sam-github]

/cc @miladfarca

They overwhelm the logs, for sure, would be nice to get rid of them. Will this get rid of all warnings? I'm not necessarily opposed to that, just curious.

[refack]

They overwhelm the logs, for sure, would be nice to get rid of them. Will this get rid of all warnings? I'm not necessarily opposed to that, just curious.

I'm just key-mashing I have no idea what I'm doing ¯\(ツ)/¯.
Seems like -bnoerrmsg gets the job done, but I assume it will probably also suppress "interesting" error messages.
https://ci.nodejs.org/job/node-test-commit-aix/23251/nodes=aix61-ppc64/consoleText

[miladfarca]

Not really sure if it's fully doable since gcc calls the AIX linker behind the scenes, here is a list of available flags: https://www.ibm.com/support/knowledgecenter/en/ssw_aix_72/com.ibm.aix.cmds3/ld.htm
noerrmsg is explained in the above page and may hide errors as-well.

[Trott]

@refack Do you still want this to land? Or does this suppress warnings too broadly?

[sam-github]

@miladfarca So, you suggest not merging this?

The linked docs are:

noerrmsg | Does not write error messages to standard error. Use this option if you specify thenoquiet option and you pipe standard output to a command such as tee or pg.

That's not so illuminating, it makes it sound like the message will go to standard out.

[miladfarca]

So I just ran a test with the flag added, all the WARNING: Exported symbol not defined messages are gone, and warning message such as this are still displayed (which is good):

In file included from ../deps/openssl/openssl/crypto/objects/obj_dat.c:22:0: ../deps/openssl/openssl/crypto/objects/obj_dat.h:1117:5: warning: missing initializer for field 'flags' of ... 

Also checked for error messages and they display just fine so seems like the change might do the trick.

[sam-github]

LGTM since @miladfarca is good with it

[refack]

LGTM since @miladfarca is good with it

Great. So this needs a formal ✔️

[nodejs-github-bot]

CI: https://ci.nodejs.org/job/node-test-pull-request/23517/