RFR: JDK-8199338 Use -g0 on solstudio also for compiling C programs (original) (raw)
Erik Joelsson erik.joelsson at oracle.com
Thu Mar 8 16:06:15 UTC 2018
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Looks good!
/Erik
On 2018-03-08 07:44, Magnus Ihse Bursie wrote:
On solstudio, we have used -g for generating debug information when compiling C files, but -g0 when compiling C++ programs.
This is due to the fact that -g, when compiling C++ programs, will prohibit inlining. We do not want that, since we build with debug symbols even in release builds, to get a proper debuginfo file per library. So, we must use -g0. And thus we must have different flags for generating debug symbols for C and C++... ... except that the C compiler also accepts -g0, which is an alias for -g. So we can use -g0 everywhere, and have things working like right now, but get the benefit of not having to separate C and C++ flags. I have verified locally using BUILDCOMPARE that we do not get any changes in the resulting binaries using this change on solaris. I am also currently running a compare build on all our platforms to verify that I do not break anything else. Bug: https://bugs.openjdk.java.net/browse/JDK-8199338 <https://bugs.openjdk.java.net/browse/JDK-8199338> WebRev: http://cr.openjdk.java.net/~ihse/JDK-8199338-use-g0-on-solstudio-always/webrev.01 <http://cr.openjdk.java.net/~ihse/JDK-8199338-use-g0-on-solstudio-always/webrev.01> /Magnus
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