Comments (4)
It was removed same time the RISC-V support was upstreamed to FSF GLIBC. I think it was removed because we couldn't prove that it worked. SiFive is the only company working upstream, and we only make rv64gc linux hardware, so that is the only thing we can test on hardware. We can test others on qemu, but it takes longer, and we had a deadline to hit to get the patches in, and limited number of people to do the work, so some things had to be sacrificed. One of those was rv32 support that was added later by WDC, based on patches originally written at Andes. Looks like one of the others was the single float support. If anyone ever volunteers to do RISC-V GLIBC work it could be readded, but I've been waiting 3 years for someone to take up GLIBC support and it hasn't hanppened yet.
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Hi @jim-wilson, thanks a lot! I'm interested in re-adding it to RV GLIBC. I will give it a try in my spare time.
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If you want to contribute to an FSF project, you need a personal copyright assignment and a disclaimer from your employer, or alternatively a corporate copyright assignment from your employer. These can take some time to get, and depending on who you work for might be difficult to get, so if you do decide to write glibc patches, you should look into this before you finish the patches. You can start the process by sending email to [email protected] and they will ask what program you are working on and who you work for, etc. Looks like you might be a college student, so the same rule applies if the university you attend can claim your work.
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I already answered this.
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Related Issues (17)
- %F printf() specifier does not work HOT 1
- Suboptimal math functions on RV32G? HOT 3
- printf return positive values for negative float HOT 2
- Please make sure that the file structures use 64-bit offsets only HOT 3
- warning: unused variable 'refsym' HOT 3
- Questions: How to compile and run the test for this glibc for risc-v? HOT 7
- Dynamic linking fails to detect soft float / hard float mixing HOT 1
- pthread library error HOT 3
- mcontext_t type is missing from ucontext.h HOT 4
- By default, stack is executable HOT 5
- Is this repo still active? HOT 2
- What is the difference of glibc 2.26 and glibc 2.27 in RISC-V implementation HOT 3
- timezone update not working tzdb-2021a on cross compile linux platform HOT 3
- `A' extension and ABI HOT 1
- Building glibc HOT 2
- Interpreter location/name HOT 2
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