std.os.linux.start_pie: Add arc, csky, and hexagon support (and arm variants) - #20776
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alexrp
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Jul 24, 2024
| : [ret] "=r" (-> [*]elf.Dyn), | ||
| ), | ||
| // The CSKY ABI requires the gb register to point to the GOT. Additionally, the first | ||
| // entry in the GOT is defined to hold the address of _DYNAMIC. |
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This will of course need code in start.zig to set gb. I'll do that in a follow-up PR.
alexrp
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Jul 24, 2024
| \\ ldw %[ret], %[ret] | ||
| : [ret] "=r" (-> [*]elf.Dyn), | ||
| ), | ||
| .hexagon => asm volatile ( |
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From the Hexagon musl fork: https://github.com/quic/musl/blob/hexagon/arch/hexagon/crt_arch.h
alexrp
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Jul 24, 2024
| .arc => asm volatile ( | ||
| \\ .weak _DYNAMIC | ||
| \\ .hidden _DYNAMIC | ||
| \\ add %[ret], pcl, _DYNAMIC@pcl |
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To clarify, PCL is the PC in ARC ("Program Counter Long-Word").
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