9 files changed, 335 insertions, 0 deletions
diff --git a/src/kprintf/CMakeLists.txt b/src/kprintf/CMakeLists.txt
new file mode 100644
index 0000000..fcc53c9
--- /dev/null
+++ b/src/kprintf/CMakeLists.txt
@@ -0,0 +1,20 @@
+# wnix, a Unix-like operating system for WebAssembly applications.
+# Copyright (C) 2025  Xavier Del Campo Romero
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+add_library(kprintf)
+add_subdirectory(src)
+target_include_directories(kprintf PUBLIC include PRIVATE private_include)
+target_link_libraries(kprintf PUBLIC c PRIVATE io nanowasm)
diff --git a/src/kprintf/include/kprintf.h b/src/kprintf/include/kprintf.h
new file mode 100644
index 0000000..fb0710f
--- /dev/null
+++ b/src/kprintf/include/kprintf.h
@@ -0,0 +1,38 @@
+/*
+ * wnix, a Unix-like operating system for WebAssembly applications.
+ * Copyright (C) 2025  Xavier Del Campo Romero
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef KPRINTF_H
+#define KPRINTF_H
+
+#include <stdarg.h>
+#include <stdbool.h>
+
+#if __GNUC__
+#define KPRINTF_ATTR __attribute__ ((format (__printf__, 1, 2)))
+#define KTPRINTF_ATTR __attribute__ ((format (__printf__, 2, 3)))
+#else
+#define KPRINTF_ATTR
+#define KTPRINTF_ATTR
+#endif
+
+int kprintf(const char *fmt, ...) KPRINTF_ATTR;
+int ktprintf(bool time, const char *fmt, ...);
+int kvprintf(const char *fmt, va_list va);
+int ktvprintf(bool time, const char *fmt, va_list va);
+
+#endif
diff --git a/src/kprintf/src/CMakeLists.txt b/src/kprintf/src/CMakeLists.txt
new file mode 100644
index 0000000..6bdfbc7
--- /dev/null
+++ b/src/kprintf/src/CMakeLists.txt
@@ -0,0 +1,26 @@
+# wnix, a Unix-like operating system for WebAssembly applications.
+# Copyright (C) 2025  Xavier Del Campo Romero
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+target_sources(kprintf PRIVATE
+    kprintf.c
+    kvprintf.c
+    ktprintf.c
+    ktvprintf.c
+    nwp_log.c
+    wip_log.c
+)
+
+target_link_libraries(kprintf PRIVATE nanowasm wip)
diff --git a/src/kprintf/src/kprintf.c b/src/kprintf/src/kprintf.c
new file mode 100644
index 0000000..de90e59
--- /dev/null
+++ b/src/kprintf/src/kprintf.c
@@ -0,0 +1,34 @@
+/*
+ * wnix, a Unix-like operating system for WebAssembly applications.
+ * Copyright (C) 2025  Xavier Del Campo Romero
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <kprintf.h>
+#include <io.h>
+#include <fcntl.h>
+#include <stdarg.h>
+#include <printf.h>
+
+int kprintf(const char *const fmt, ...)
+{
+    int ret;
+    va_list ap;
+
+    va_start(ap, fmt);
+    ret = kvprintf(fmt, ap);
+    va_end(ap);
+    return ret;
+}
diff --git a/src/kprintf/src/ktprintf.c b/src/kprintf/src/ktprintf.c
new file mode 100644
index 0000000..f619d54
--- /dev/null
+++ b/src/kprintf/src/ktprintf.c
@@ -0,0 +1,35 @@
+/*
+ * wnix, a Unix-like operating system for WebAssembly applications.
+ * Copyright (C) 2025  Xavier Del Campo Romero
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <kprintf.h>
+#include <io.h>
+#include <fcntl.h>
+#include <stdarg.h>
+#include <stdbool.h>
+#include <printf.h>
+
+int ktprintf(const bool time, const char *const fmt, ...)
+{
+    int ret;
+    va_list ap;
+
+    va_start(ap, fmt);
+    ret = ktvprintf(time, fmt, ap);
+    va_end(ap);
+    return ret;
+}
diff --git a/src/kprintf/src/ktvprintf.c b/src/kprintf/src/ktvprintf.c
new file mode 100644
index 0000000..a3529c4
--- /dev/null
+++ b/src/kprintf/src/ktvprintf.c
@@ -0,0 +1,80 @@
+/*
+ * wnix, a Unix-like operating system for WebAssembly applications.
+ * Copyright (C) 2025  Xavier Del Campo Romero
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <kprintf.h>
+#include <io.h>
+#include <fcntl.h>
+#include <stddef.h>
+#include <stdarg.h>
+#include <printf.h>
+#include <time.h>
+
+struct kvprintf
+{
+    struct fs_fd fd;
+    size_t n;
+};
+
+static void writechar(const char c, void *const args)
+{
+    static char buf[128];
+    static size_t bufi;
+    struct kvprintf *k = args;
+
+    buf[bufi++] = c;
+
+    if (c == '\n' || bufi >= sizeof buf)
+    {
+        const struct fs_write w =
+        {
+            .buf = buf,
+            .fd = &k->fd,
+            .n = bufi
+        };
+
+        io_write(&w);
+        bufi = 0;
+    }
+
+    k->n++;
+}
+
+int ktvprintf(const bool time, const char *const fmt, va_list ap)
+{
+    struct timespec ts;
+    struct kvprintf k = {0};
+    const struct fs_open o =
+    {
+        .fd = &k.fd,
+        .path = "/dev/tty",
+        .mode = O_WRONLY
+    };
+
+    if (time && clock_gettime(CLOCK_REALTIME, &ts))
+        return -1;
+
+    const long ms = ts.tv_nsec / 1000000;
+
+    if (io_open(&o)
+        || (time
+            && fctprintf(writechar, &k, "[%lld.%03ld] ", ts.tv_sec, ms) < 0)
+        || fctvprintf(writechar, &k, fmt, ap) < 0)
+        return -1;
+
+    return k.n;
+}
diff --git a/src/kprintf/src/kvprintf.c b/src/kprintf/src/kvprintf.c
new file mode 100644
index 0000000..69890cb
--- /dev/null
+++ b/src/kprintf/src/kvprintf.c
@@ -0,0 +1,26 @@
+/*
+ * wnix, a Unix-like operating system for WebAssembly applications.
+ * Copyright (C) 2025  Xavier Del Campo Romero
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <kprintf.h>
+#include <stdarg.h>
+#include <stdbool.h>
+
+int kvprintf(const char *fmt, va_list va)
+{
+    return ktvprintf(true, fmt, va);
+}
diff --git a/src/kprintf/src/nwp_log.c b/src/kprintf/src/nwp_log.c
new file mode 100644
index 0000000..2db9969
--- /dev/null
+++ b/src/kprintf/src/nwp_log.c
@@ -0,0 +1,32 @@
+/*
+ * wnix, a Unix-like operating system for WebAssembly applications.
+ * Copyright (C) 2025  Xavier Del Campo Romero
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <kprintf.h>
+#include <nanowasm/nw.h>
+#include <stdarg.h>
+
+int nwp_log(const char *const fmt, ...)
+{
+    int ret;
+    va_list ap;
+
+    va_start(ap, fmt);
+    ret = ktvprintf(false, fmt, ap);
+    va_end(ap);
+    return ret;
+}
diff --git a/src/kprintf/src/wip_log.c b/src/kprintf/src/wip_log.c
new file mode 100644
index 0000000..67f4f8f
--- /dev/null
+++ b/src/kprintf/src/wip_log.c
@@ -0,0 +1,44 @@
+/*
+ * wnix, a Unix-like operating system for WebAssembly applications.
+ * Copyright (C) 2025  Xavier Del Campo Romero
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <kprintf.h>
+#include <wip/wip.h>
+#include <stdarg.h>
+
+
+#include <drv/ps1/bios.h>
+#include <dynstr.h>
+int wip_log(const char *const fmt, ...)
+{
+    int ret;
+    va_list ap;
+
+    va_start(ap, fmt);
+#if 1
+    ret = ktvprintf(false, fmt, ap);
+#else
+    struct dynstr d;
+    dynstr_init(&d);
+    if (dynstr_vappend(&d, fmt, ap)) ret = -1;
+    else
+        ret = Printf("%s", d.str);
+    dynstr_free(&d);
+#endif
+    va_end(ap);
+    return ret;
+}