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This commit introduces support for the CROSS_COMPILE variable, which is commonly used in cross-compilation projects such as the Linux kernel. When CROSS_COMPILE is set, the build process will use it to detect the proper architecture for code generation. If CROSS_COMPILE is not set, the build system will assume a native build by consulting the results of "uname" command. The SYSROOT variable is used along with CROSS_COMPILE to prepend both header and library default directories. In addition, users can enforce gcc-multilib to generate 32-bit code under x86-64 platforms by specifying TARGET=x86. Examples: 1. Arm64 code generation make CROSS_COMPILE=aarch64-none-linux-gnu- 2. Arm64 code generation with sysroot make CROSS_COMPILE=aarch64-none-linux-gnu- SYSROOT=$(HOME)/php/ARM64 3. 32-bit x86 code generation make TARGET=x86
weltling
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May 9, 2023
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weltling
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If this scenario is going to be supported, the change should be tested. It would be thinkable to add a parallel set of runs to the CI matrix, that would exercise all three Linux build scenarios that are currently present. For the aarch64 variant, QEMU could be also used to run the tests.
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This commit introduces support for the CROSS_COMPILE variable, which is commonly used in cross-compilation projects such as the Linux kernel.
When CROSS_COMPILE is set, the build process will use it to detect the proper architecture for code generation. If CROSS_COMPILE is not set, the build system will assume a native build by consulting the results of "uname" command. The SYSROOT variable is used along with CROSS_COMPILE to prepend both header and library default directories.
In addition, users can enforce gcc-multilib to generate 32-bit code under x86-64 platforms by specifying TARGET=x86.
Examples: