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'''MinGW''' (Minimalist GNU for Windows) is a port of several GNU utilities to the Windows console environment, including GCC. It is less sophisticated than Cygwin, but more compact |
'''MinGW''' (Minimalist GNU for Windows) is a port of several GNU utilities to the Windows console environment, including the GCC / binutils toolchain. It is less sophisticated than Cygwin, but more compact with a lower overhead. It is most widely used in conjunction with the [[Dev-C++]] and CodeBlocks [[:Category:IDEs|IDE]]. |
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Note that |
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* MinGW is a 10+ megabyte download and, like Cygwin, now requires a helper DLL (<tt>MSYS-1.0.DLL</tt>). So it's no longer "minimal". |
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* MinGW '<tt>make</tt>' uses '<tt>sh</tt>' as the shell if it finds '<tt>sh</tt>' on the path. This is the Wrong Thing. DJGPP '<tt>make</tt>' works better: it looks at the <tt>SHELL</tt> and <tt>COMSPEC</tt> environment variables. |
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==OSDev== |
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Really, you're advised not to use MinGW for OSDeving, but instead to use [[Cygwin]]. MinGW has a collection of issues that make it poorly suited for our needs: |
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# (GCC 2.95) <tt>ld -r -d ...</tt> doesn't get rid of all the common variables. |
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# (GCC 2.95) BSS size is stored in the wrong location of the section header, so MinGW does not correctly interoperate with NASM. |
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# <tt>ld -Ttext=NNN ...</tt> doesn't put the .text section at the correct address unless you also use the --image-base=0 option. |
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# Linker claims to support ELF, but says "PE operations on non PE file" if you try to use ELF. |
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But if you write a link script, you'll still be able to make it able to be a Multiboot-kludge compatible kernel. If you are interested you can visit FreeDOS-32 and its kernel can be compiled by MinGW. |
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<pre> |
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/* The link script |
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( Note: the format should be "pe-i386" instead of |
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"pei-i386" to ged rid of the "MZ" header. text |
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and data sections should be close to each other. ) |
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*/ |
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OUTPUT_FORMAT("pe-i386") |
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ENTRY(start) |
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SECTIONS { |
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.text :{ |
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*(.text) |
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} |
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.data ADDR(.text) + SIZEOF(.text) :{ |
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*(.data) |
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*(.data2) |
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*(.rdata) |
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__data_end__ = . ; |
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} |
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.bss ADDR(.data) + SIZEOF(.data) : { |
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*(.bss) |
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*(COMMON) |
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__bss_end__ = . ; |
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} |
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} |
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</pre> |
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==See Also== |
==See Also== |
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===External Links=== |
===External Links=== |
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*http://www.mingw.org/ |
*http://www.mingw.org/ |
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*http://my.execpc.com/~geezer/os/index.htm#borealis - Chris Giese tip-toed around the bugs and got his kernel to build with MinGW |
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[[Category:Compilers]] |
[[Category:Compilers]] |
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[[Category:Windows]] |
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Latest revision as of 18:57, 9 July 2023
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MinGW (Minimalist GNU for Windows) is a port of several GNU utilities to the Windows console environment, including the GCC / binutils toolchain. It is less sophisticated than Cygwin, but more compact with a lower overhead. It is most widely used in conjunction with the Dev-C++ and CodeBlocks IDE.