D runtime: Targets issues

[kassane]

RISCV64 (fixed: 96e1383)

 druntime/src/core/thread/fiber.d(1241,18): vgc: `new` causes a GC allocation
druntime/src/core/thread/fiber.d(1967,13): Error: static assert:  "Not implemented"
            static assert(0, "Not implemented");

CI: https://github.com/kassane/druntime-zigbuild/actions/runs/9627275994/job/26554182002#step:5:128

fix: for riscv64 target no add asmExternal!!

MIPS

Important

libunwind.d for MIPS is modified. Because druntime upstream no have _LIBUNWIND_CONTEXT_SIZE and _LIBUNWIND_CURSOR_SIZE added on MIPS

druntime-zigbuild/druntime/src/core/internal/backtrace/libunwind.d

Lines 159 to 197 in b77dddd

	else version (MIPS_O32)
	{
	version (MIPS_HardFloat)
	{
	enum _LIBUNWIND_CONTEXT_SIZE = 50;
	enum _LIBUNWIND_CURSOR_SIZE = 57;
	}
	else
	{
	enum _LIBUNWIND_CONTEXT_SIZE = 18;
	enum _LIBUNWIND_CURSOR_SIZE = 24;
	}
	}
	else version (MIPS_N32)
	{
	version (MIPS_HardFloat)
	{
	enum _LIBUNWIND_CONTEXT_SIZE = 67;
	enum _LIBUNWIND_CURSOR_SIZE = 74;
	}
	else
	{
	enum _LIBUNWIND_CONTEXT_SIZE = 35;
	enum _LIBUNWIND_CURSOR_SIZE = 42;
	}
	}
	else version (MIPS64)
	{
	version (MIPS_HardFloat)
	{
	enum _LIBUNWIND_CONTEXT_SIZE = 67;
	enum _LIBUNWIND_CURSOR_SIZE = 79;
	}
	else
	{
	enum _LIBUNWIND_CONTEXT_SIZE = 35;
	enum _LIBUNWIND_CURSOR_SIZE = 47;
	}
	}

mips64el-linux-musl

druntime/src/core/demangle.d(2488,38): vgc: setting `length` may cause a GC allocation
druntime/src/core/sys/posix/sys/stat.d(370,17): Error: static assert:  `176u == 160u` is false
                static assert(stat_t.sizeof == 160);

fix: remove this LoC and rebuild... no issue

mipsel-linux-musl
Same issue on mips64el-linux-musl... but get new error:

druntime/src/core/internal/gc/impl/conservative/gc.d(165,17): `_inFinalizer` is thread local
druntime/src/core/exception.d(870,44): `_store` is thread local
druntime/src/core/thread/osthread.d(1589):1:12: warning: used $at (currently $1) without ".set noat"
        sw $16, 0($1)
                  ^
druntime/src/core/thread/osthread.d(1589):1:12: warning: used $at (currently $1) without ".set noat"
        sw $16, 0($1)
                  ^
druntime/src/core/thread/osthread.d(1589):1:12: warning: used $at (currently $1) without ".set noat"
        sw $16, 0($1)
                  ^
druntime/src/core/thread/osthread.d(1589):1:12: warning: used $at (currently $1) without ".set noat"
        sw $17, 0($1)
                  ^
druntime/src/core/thread/osthread.d(1589):1:12: warning: used $at (currently $1) without ".set noat"
        sw $17, 0($1)
                  ^
druntime/src/core/thread/osthread.d(1589):1:12: warning: used $at (currently $1) without ".set noat"
        sw $17, 0($1)
                  ^
druntime/src/core/thread/osthread.d(1589):1:12: warning: used $at (currently $1) without ".set noat"
        sw $18, 0($1)
                  ^
druntime/src/core/thread/osthread.d(1589):1:12: warning: used $at (currently $1) without ".set noat"
        sw $18, 0($1)
                  ^
druntime/src/core/thread/osthread.d(1589):1:12: warning: used $at (currently $1) without ".set noat"
        sw $18, 0($1)
                  ^
druntime/src/core/thread/osthread.d(1589):1:12: warning: used $at (currently $1) without ".set noat"
        sw $19, 0($1)
                  ^
druntime/src/core/thread/osthread.d(1589):1:12: warning: used $at (currently $1) without ".set noat"
        sw $19, 0($1)
                  ^
druntime/src/core/thread/osthread.d(1589):1:12: warning: used $at (currently $1) without ".set noat"
        sw $19, 0($1)
                  ^
druntime/src/core/thread/osthread.d(1589):1:12: warning: used $at (currently $1) without ".set noat"
        sw $20, 0($1)
                  ^
druntime/src/core/thread/osthread.d(1589):1:12: warning: used $at (currently $1) without ".set noat"
        sw $20, 0($1)
                  ^
druntime/src/core/thread/osthread.d(1589):1:12: warning: used $at (currently $1) without ".set noat"
        sw $20, 0($1)
                  ^
druntime/src/core/thread/osthread.d(1589):1:12: warning: used $at (currently $1) without ".set noat"
        sw $21, 0($1)
                  ^
druntime/src/core/thread/osthread.d(1589):1:12: warning: used $at (currently $1) without ".set noat"
        sw $21, 0($1)
                  ^
druntime/src/core/thread/osthread.d(1589):1:12: warning: used $at (currently $1) without ".set noat"
        sw $21, 0($1)
                  ^
druntime/src/core/thread/osthread.d(1589):1:12: warning: used $at (currently $1) without ".set noat"
        sw $22, 0($1)
                  ^
druntime/src/core/thread/osthread.d(1589):1:12: warning: used $at (currently $1) without ".set noat"
        sw $22, 0($1)
                  ^
druntime/src/core/thread/osthread.d(1589):1:12: warning: used $at (currently $1) without ".set noat"
        sw $22, 0($1)
                  ^
druntime/src/core/thread/osthread.d(1589):1:12: warning: used $at (currently $1) without ".set noat"
        sw $23, 0($1)
                  ^
druntime/src/core/thread/osthread.d(1589):1:12: warning: used $at (currently $1) without ".set noat"
        sw $23, 0($1)
                  ^
druntime/src/core/thread/osthread.d(1589):1:12: warning: used $at (currently $1) without ".set noat"
        sw $23, 0($1)
                  ^
install
└─ druntime failure
error: the following command exited with error code 1:

Reference

• Mipsel-musl: build error in D runtime debug ldc-developers/ldc#4520 (comment)