> Some dll/exe files end up having absolute path names embedded in them despite 
> the use of `--disable-absolute-paths-in-output` build option. This option 
> effectively translates into adding `-pathmap` to compilation lines, but 
> doesn't (always) achieve the desired effects. The reason for that is in the 
> use of Windows-style path for the argument provided to `pathmap`. The slash 
> characters in the path passed as an argument get removed by the `fixpath` 
> script that pre-processes all commands on Windows prior to running them and 
> is supposed to convert Unix-style paths to what is understood by Windows.
> 
> For example:
> 
> $ build/windows-x86_64-server-release/fixpath print 
> -pathmap:C:\cygwin64\home\maxim\work\repr.build.1=s
> -pathmap:C:cygwin64homemaximworkrepr.build.1=s
> 
> However, if a "normal" Unix-style path is provided, it gets converted 
> correctly:
> 
> $ build/windows-x86_64-server-release/fixpath print 
> -pathmap:/home/maxim/work/repr.build.1=s
> -pathmap:C:\cygwin64\home\maxim\work\repr.build.1=s 
> 
> 
> This commit changes the `-pathmap` compiler option to use "normal", 
> Unix-style paths on Windows. Those will be changed to Windows style by the 
> `fixpath` script. 
> 
> Verified by running two builds (details below) in different directories on 
> the same machine; with this commit, all the exe/dll files under 
> `.../images/jdk/...` are the same.
> 
> 
> Builds were produced by running the following commands on Windows 10 x64 with 
> Visual Studio 2019 installed:
> 
>  ./configure --with-debug-level=release --with-jvm-features=shenandoahgc 
> --with-version-pre= --with-version-build=1 --with-version-opt=b42 
> --with-toolchain-version=2019 --disable-ccache --enable-cds=yes 
> --enable-reproducible-build --with-source-date=1643953637 
> --with-hotspot-build-time=2022-02-04 --with-copyright-year=2022 
> --disable-absolute-paths-in-output 
> --with-boot-jdk=/home/maxim/work/zulu17.0.81-ea-jdk17.0.0-ea.35-win_x64
> make reconfigure clean
> make images

Maxim Kartashev has updated the pull request incrementally with one additional 
commit since the last revision:

  Added validation of root paths.

-------------

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/7344/files
  - new: https://git.openjdk.java.net/jdk/pull/7344/files/2f99ca5b..c66ea187

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=7344&range=02
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=7344&range=01-02

  Stats: 7 lines in 1 file changed: 7 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/7344.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/7344/head:pull/7344

PR: https://git.openjdk.java.net/jdk/pull/7344

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