user: implement mlibc as the libc, finally.

It's finally done.. Signed-off-by: kaguya <vpshinomiya@protonmail.com>
2026-05-02 03:31:49 -04:00
parent 2fa39ad85a
commit 9a9b91c940
2387 changed files with 152741 additions and 315 deletions
@@ -0,0 +1,47 @@
+#pragma once
+
+#include <elf.h>
+#include <sys/hwprobe.h>
+
+#define ELF_CLASS ELFCLASS64
+#define ELF_MACHINE EM_RISCV
+
+using elf_ehdr = Elf64_Ehdr;
+using elf_phdr = Elf64_Phdr;
+using elf_dyn = Elf64_Dyn;
+using elf_rel = Elf64_Rel;
+using elf_rela = Elf64_Rela;
+using elf_relr = Elf64_Relr;
+using elf_sym = Elf64_Sym;
+using elf_addr = Elf64_Addr;
+
+using elf_info = Elf64_Xword;
+using elf_addend = Elf64_Sxword;
+
+using elf_version = Elf64_Half;
+using elf_verdef = Elf64_Verdef;
+using elf_verdaux = Elf64_Verdaux;
+using elf_verneed = Elf64_Verneed;
+using elf_vernaux = Elf64_Vernaux;
+
+#define ELF_R_SYM ELF64_R_SYM
+#define ELF_R_TYPE ELF64_R_TYPE
+#define ELF_ST_BIND ELF64_ST_BIND
+#define ELF_ST_TYPE ELF64_ST_TYPE
+
+#define R_NONE R_RISCV_NONE
+#define R_JUMP_SLOT R_RISCV_JUMP_SLOT
+#define R_ABSOLUTE R_RISCV_64
+#define R_GLOB_DAT R_RISCV_64
+#define R_RELATIVE R_RISCV_RELATIVE
+#define R_IRELATIVE R_RISCV_IRELATIVE
+// #define R_OFFSET
+#define R_COPY R_RISCV_COPY
+#define R_TLS_DTPMOD R_RISCV_TLS_DTPMOD64
+#define R_TLS_DTPREL R_RISCV_TLS_DTPREL64
+#define R_TLS_TPREL R_RISCV_TLS_TPREL64
+#define R_TLSDESC R_RISCV_TLSDESC
+
+#define TP_TCB_OFFSET 0
+
+using ifunc_handler = elf_addr (*)(uint64_t, __riscv_hwprobe_t, void *);
@@ -0,0 +1,13 @@
+#include "mlibc-asm/helpers.h"
+
+PROC_START(_start)
+	call relocateSelf
+
+	mv a0, sp
+	call interpreterMain
+
+	jr a0
+PROC_END(_start)
+
+GNU_STACK_NOTE()
+
@@ -0,0 +1,5 @@
+.global pltRelocateStub
+pltRelocateStub:
+	unimp // TODO
+.section .note.GNU-stack,"",%progbits
+