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<p><font size="2" face="sans-serif">Hi all,</font><br>
<br>
<font size="2" face="sans-serif">The driver regression tests for the hexagon target rely on the minimal/dummy toolchain that comes in the Inputs folder included in the clang driver tests’s folder. The path to the right toolchain is specified using the -ccc-install-dir switch. However, if clang was configured with a custom gcc toolchain (either by using GCC_INSTALL_PREFIX in cmake or the equivalent configure command), the path to the custom gcc toolchain path takes precedence to the one specified by -ccc-install-dir. This causes several regression tests to fail as they will be using an unexpected path. Adding the switch --gcc-toolchain=“” in each test command is not enough as the hexagon toolchain implementation in the driver is not evaluating this argument. </font><br>
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<font size="2" face="sans-serif">This patch modifies the hexagon toolchain to take the --gcc-toolchain=“” argument into account when deciding the toolchain path, similarly to what is already done for other targets’ toolchains. Additionally, the faulty regression tests are modified in order to --gcc-toolchain=“” be passed to the commands.</font><br>
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<font size="2" face="sans-serif">The modified files are the following:</font><br>
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<font size="2" face="sans-serif">lib/Driver/ToolChains.cpp</font><br>
<font size="2" face="sans-serif">lib/Driver/ToolChains.h</font><br>
<font size="2" face="sans-serif">lib/Driver/Tools.cpp</font><br>
<font size="2" face="sans-serif">test/Driver/hexagon-toolchain-elf.c</font><br>
<font size="2" face="sans-serif">test/Driver/hexagon-toolchain.c</font><br>
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<font size="2" face="sans-serif">Thanks,</font><br>
<br>
<font size="2" face="sans-serif">Sam</font><br>
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<i>(See attached file: clang_hexagon_toolchain.patch)</i></body></html>