RFR [XS] : 8219112: name_and_sig_as_C_string usages in frame_s390 miss ResourceMark

Baesken, Matthias matthias.baesken at sap.com
Mon Feb 18 13:40:18 UTC 2019


Hi Aleksey and Lutz , thanks  for  the reviews.


One (maybe stupid)  general   question  -  is there an easy way to find out  all locations  of missing ResourceMark usages ?
Currently  it looks to me  like a very  error prone process .

The name_and_sig_as_C_string()  issue  in this  CR   seems to be an easy and simple case .


But in  other cases  it is  (for me at least)   not so easy to say - is the ResourceMark missing  or  is it  somewhere located  in the calling functions ?
One example :

src/hotspot/cpu/ppc/nativeInst_ppc.cpp

363  void NativeGeneralJump::insert_unconditional(address code_pos, address entry) {
364    CodeBuffer cb(code_pos, BytesPerInstWord + 1);
365    MacroAssembler* a = new MacroAssembler(&cb);
366    a->b(entry);
367    ICache::ppc64_flush_icache_bytes(code_pos, NativeGeneralJump::instruction_size);
368  }

 Do we need the ResouceMark here or not ?

Best regards, Matthias



> -----Original Message-----
> From: Aleksey Shipilev <shade at redhat.com>
> Sent: Montag, 18. Februar 2019 12:55
> To: Baesken, Matthias <matthias.baesken at sap.com>; 'hotspot-
> dev at openjdk.java.net' <hotspot-dev at openjdk.java.net>
> Subject: Re: RFR [XS] : 8219112: name_and_sig_as_C_string usages in
> frame_s390 miss ResourceMark
> 
> On 2/18/19 9:47 AM, Baesken, Matthias wrote:
> > Bug/webrev :
> > http://cr.openjdk.java.net/~mbaesken/webrevs/8219112.0/
> 
> Looks good and trivial.
> 
> -Aleksey



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