feat: std-freestanding 0.2.0 + riscv-virt-rt 0.3.0 — the target owns its C library

pkgs/r/riscv-virt-rt.lua

@@ -9,13 +9,13 @@
 -- link against nothing. Pointing at the manifest moves the root inside the
 -- wrap layer, where both the manifest and the program live.
 --
--- ⚠️ `deps` is at the xpm PLATFORM level, not in the mcpp segment. The two
--- entries are xim packages (an emulator and a target sysroot), not mcpp
--- packages, so they travel on xim's install-time dependency edge. This matters
--- more than it looks: mcpp materializes `[xlings] deps` for the ROOT project
--- only, so a consumer that just runs `mcpp add riscv-virt-rt` would otherwise
--- get the board package with neither a libc nor an emulator, and find out at
--- build.mcpp time.
+-- ⚠️ `deps` names the EMULATOR and nothing else. The target's C library is not
+-- here because it is not this package's: mcpp resolves it from the target's
+-- own row, the way it resolves the compiler. What is left is the one xim
+-- package that really is a board fact — how to run an image — and it is at the
+-- xpm PLATFORM level because mcpp materializes `[xlings] deps` for the ROOT
+-- project only, so a consumer running `mcpp add riscv-virt-rt` would otherwise
+-- get a board package with no way to start it.
 package = {
     spec        = "1",
     namespace   = "mcpplibs",
@@ -30,7 +30,7 @@ package = {
     -- published is a version someone may have pinned.
     xpm = {
         linux = {
-            deps = { "xim:picolibc-riscv@1.8.12", "xim:qemu-riscv@9.2.4-1" },
+            deps = { "xim:qemu-riscv@9.2.4-1" },
             ["0.1.0"] = {
                 url    = {
                     GLOBAL = "https://github.com/mcpplibs/riscv-virt-rt/archive/refs/tags/0.1.0.tar.gz",
@@ -45,9 +45,16 @@ package = {
                 },
                 sha256 = "79f1dc4415a59ba828048eb8706322957723f8a6fd84bde3faba6a377e48242b",
             },
+            ["0.3.0"] = {
+                url    = {
+                    GLOBAL = "https://github.com/mcpplibs/riscv-virt-rt/archive/refs/tags/0.3.0.tar.gz",
+                    CN     = "https://gitcode.com/mcpp-res/riscv-virt-rt/releases/download/0.3.0/riscv-virt-rt-0.3.0.tar.gz",
+                },
+                sha256 = "71fc43daa4903d4f3037c204bd2b3be9aea56371b123a4529cc8c0c8c9b7f525",
+            },
         },
         macosx = {
-            deps = { "xim:picolibc-riscv@1.8.12", "xim:qemu-riscv@9.2.4-1" },
+            deps = { "xim:qemu-riscv@9.2.4-1" },
             ["0.1.0"] = {
                 url    = {
                     GLOBAL = "https://github.com/mcpplibs/riscv-virt-rt/archive/refs/tags/0.1.0.tar.gz",
@@ -62,9 +69,16 @@ package = {
                 },
                 sha256 = "79f1dc4415a59ba828048eb8706322957723f8a6fd84bde3faba6a377e48242b",
             },
+            ["0.3.0"] = {
+                url    = {
+                    GLOBAL = "https://github.com/mcpplibs/riscv-virt-rt/archive/refs/tags/0.3.0.tar.gz",
+                    CN     = "https://gitcode.com/mcpp-res/riscv-virt-rt/releases/download/0.3.0/riscv-virt-rt-0.3.0.tar.gz",
+                },
+                sha256 = "71fc43daa4903d4f3037c204bd2b3be9aea56371b123a4529cc8c0c8c9b7f525",
+            },
         },
         windows = {
-            deps = { "xim:picolibc-riscv@1.8.12", "xim:qemu-riscv@9.2.4-1" },
+            deps = { "xim:qemu-riscv@9.2.4-1" },
             ["0.1.0"] = {
                 url    = {
                     GLOBAL = "https://github.com/mcpplibs/riscv-virt-rt/archive/refs/tags/0.1.0.tar.gz",
@@ -79,6 +93,13 @@ package = {
                 },
                 sha256 = "79f1dc4415a59ba828048eb8706322957723f8a6fd84bde3faba6a377e48242b",
             },
+            ["0.3.0"] = {
+                url    = {
+                    GLOBAL = "https://github.com/mcpplibs/riscv-virt-rt/archive/refs/tags/0.3.0.tar.gz",
+                    CN     = "https://gitcode.com/mcpp-res/riscv-virt-rt/releases/download/0.3.0/riscv-virt-rt-0.3.0.tar.gz",
+                },
+                sha256 = "71fc43daa4903d4f3037c204bd2b3be9aea56371b123a4529cc8c0c8c9b7f525",
+            },
         },
     },
 

pkgs/s/std-freestanding.lua

@@ -0,0 +1,56 @@
+-- std-freestanding — the freestanding subset of the C++ standard library.
+--
+-- Form A because the package ships a `build.mcpp`, which mcpp looks for at the
+-- package ROOT: Form B would leave it one level down inside the tarball's wrap
+-- directory, unfound, and the package would resolve and compile and then link
+-- against nothing.
+--
+-- ⚠️ NO `deps`, and that is the design. This package needs libc++'s headers
+-- and the target's C headers, and it gets both by ASKING mcpp
+-- (`mcpp::toolchain_dir()`, and the target's libc which mcpp already puts on
+-- the compile line) rather than by declaring who provides them. Declaring
+-- pinned it to one standard-library implementation, one C library, one
+-- architecture and one version of each — none of which it has any business
+-- knowing about.
+package = {
+    spec        = "1",
+    namespace   = "mcpplibs",
+    name        = "std-freestanding",
+    description = "The freestanding subset of the C++ standard library as one module — import mcpplibs.std.freestanding",
+    licenses    = {"Apache-2.0"},
+    repo        = "https://github.com/mcpplibs/std-freestanding",
+    type        = "package",
+
+    xpm = {
+        linux = {
+            ["0.2.0"] = {
+                url    = {
+                    GLOBAL = "https://github.com/mcpplibs/std-freestanding/archive/refs/tags/0.2.0.tar.gz",
+                    CN     = "https://gitcode.com/mcpp-res/std-freestanding/releases/download/0.2.0/std-freestanding-0.2.0.tar.gz",
+                },
+                sha256 = "c0026e6aa85d207b3dd00c3f2fe2674174c2e25d86a162f64fe70742420efb00",
+            },
+        },
+        macosx = {
+            ["0.2.0"] = {
+                url    = {
+                    GLOBAL = "https://github.com/mcpplibs/std-freestanding/archive/refs/tags/0.2.0.tar.gz",
+                    CN     = "https://gitcode.com/mcpp-res/std-freestanding/releases/download/0.2.0/std-freestanding-0.2.0.tar.gz",
+                },
+                sha256 = "c0026e6aa85d207b3dd00c3f2fe2674174c2e25d86a162f64fe70742420efb00",
+            },
+        },
+        windows = {
+            ["0.2.0"] = {
+                url    = {
+                    GLOBAL = "https://github.com/mcpplibs/std-freestanding/archive/refs/tags/0.2.0.tar.gz",
+                    CN     = "https://gitcode.com/mcpp-res/std-freestanding/releases/download/0.2.0/std-freestanding-0.2.0.tar.gz",
+                },
+                sha256 = "c0026e6aa85d207b3dd00c3f2fe2674174c2e25d86a162f64fe70742420efb00",
+            },
+        },
+    },
+
+    -- The package's own manifest, inside the tarball's wrap directory.
+    mcpp = "*/mcpp.toml",
+}