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authorIan Moffett <ian@osmora.org>2024-03-14 22:01:56 -0400
committerIan Moffett <ian@osmora.org>2024-03-14 22:01:56 -0400
commit128684dfb24b710cc67bf3de293b31c25746db0c (patch)
tree8e2ba6e7ee86bab31f32265564cc33d2f6f35eba
parent46af122de0533c2bf8344382757843f47686b33c (diff)
libc: Initial hyra libc commit
Signed-off-by: Ian Moffett <ian@osmora.org>
-rw-r--r--Makefile.in12
-rwxr-xr-xbootstrap6
-rw-r--r--lib/Makefile12
-rw-r--r--lib/libc/.gitignore1
-rw-r--r--lib/libc/Makefile28
-rw-r--r--lib/libc/crt-src/amd64/crt0.S13
-rw-r--r--lib/libc/include/auxv.h53
-rw-r--r--lib/libc/include/elf.h499
-rw-r--r--lib/libc/include/stddef.h35
-rw-r--r--lib/libc/include/stdint.h110
-rw-r--r--lib/libc/include/sys/syscall.h117
-rw-r--r--lib/libc/linker/entry.S51
-rw-r--r--lib/libc/linker/entry.c60
-rw-r--r--lib/libc/src/exit.c37
14 files changed, 1012 insertions, 22 deletions
diff --git a/Makefile.in b/Makefile.in
index 5bf00a8..f4336a7 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -88,7 +88,10 @@ base:
mkdir -p base/usr/sbin/
mkdir -p base/boot/
-lib: base/usr/lib/ld.so
+.PHONY: lib
+lib:
+ cd lib/; make $(USER_MKFLGS)
+ cp lib/libc/build/ld.so base/usr/lib/
.PHONY: run
run:
@@ -115,13 +118,6 @@ clean:
sys/include/machine/:
cd sys/include/; ln -sf arch/$(ARCH) machine
-base/usr/lib/ld.so: lib/mlibc/
- cd lib/; make mlibc/build/
- $(PROMPT) " DYNLD " base/usr/lib/ld.so
- $(PROMPT) " LIBC " base/usr/lib/libc.so
- cp lib/mlibc/build/ld.so base/usr/lib/
- cp lib/mlibc/build/libc.so base/usr/lib/
-
base/boot/hyra-kernel: $(KERNEL_OBJECTS) $(KERNEL_ASMOBJECTS)
rm -rf iso_root
$(PROMPT) " LD " $(shell pwd)/base/boot/hyra-kernel
diff --git a/bootstrap b/bootstrap
index 7c36c65..9c4ad77 100755
--- a/bootstrap
+++ b/bootstrap
@@ -16,20 +16,14 @@ try_fetch() {
fetch() {
try_fetch "git clone https://github.com/limine-bootloader/limine.git --branch=v5.x-branch-binary --depth=1" "stand/limine"
- try_fetch "git clone https://github.com/sigsegv7/hyra-mlibc lib/mlibc"
}
build_limine() {
make -C stand/limine/
}
-init_mlibc() {
- cp builddeps/cross_file.txt lib/mlibc/
-}
-
build() {
build_limine
- init_mlibc
}
echo "----------------------------------"
diff --git a/lib/Makefile b/lib/Makefile
index a4946e9..3881833 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -1,11 +1,7 @@
-mlibc/build/:
- cd mlibc; ln -s ../../cross/bin/ crossbin
- cd mlibc; meson setup -Ddisable_crypt_option=true -Ddisable_iconv_option=true \
- -Ddisable_intl_option=true -Ddisable_libgcc_dependency=true \
- -Ddisable_linux_option=true -Ddisable_libgcc_dependency=false \
- -Dmlibc_no_headers=true \
- --cross-file=cross_file.txt build; cd build/; ninja
+.PHONY: libc
+libc:
+ cd libc; make CC=$(CC)
.PHONY: clean
clean:
- rm -rf mlibc/build; rm -f mlibc/crossbin
+ cd libc/; make clean
diff --git a/lib/libc/.gitignore b/lib/libc/.gitignore
new file mode 100644
index 0000000..567609b
--- /dev/null
+++ b/lib/libc/.gitignore
@@ -0,0 +1 @@
+build/
diff --git a/lib/libc/Makefile b/lib/libc/Makefile
new file mode 100644
index 0000000..aa09a4c
--- /dev/null
+++ b/lib/libc/Makefile
@@ -0,0 +1,28 @@
+CFLAGS = -c -fno-stack-protector -nostdlib -static -Iinclude/
+LIBC_CFILES = $(shell find src/ -name "*.c")
+LIBC_ASMFILES = $(shell find src/ -name "*.S")
+
+LIBC_OBJ = $(LIBC_CFILES:.c=.o)
+LIBC_ASMOBJ = $(LIBC_ASMFILES:.S=.S.o)
+
+all: $(LIBC_OBJ) build/ld.so
+
+build/ld.so: build/ linker/entry.c linker/entry.S
+ mkdir -p $(@D)
+ $(CC) $(CFLAGS) linker/entry.S -o build/entry.S.o
+ $(CC) $(CFLAGS) linker/entry.c -o build/entry.o
+ $(LD) build/entry.o build/entry.S.o -o $(LIBC_OBJ) -o $@
+
+%.o: %.c
+ $(CC) $(CFLAGS) $< -o $@
+
+%.S.o: %.S
+ gcc $(CFLAGS) $< -o $@
+
+.PHONY:
+build/:
+ mkdir -p build/
+
+.PHONY: clean
+clean:
+ rm -rf build/
diff --git a/lib/libc/crt-src/amd64/crt0.S b/lib/libc/crt-src/amd64/crt0.S
new file mode 100644
index 0000000..d45d74c
--- /dev/null
+++ b/lib/libc/crt-src/amd64/crt0.S
@@ -0,0 +1,13 @@
+.text
+.globl _start
+
+_start:
+ xor %rbp, %rbp // End of callstack
+
+ pushq %rsi // argv
+ pushq %rdi // argc
+ call __libc_init
+
+ popq %rdi
+ popq %rsi
+ ud2 // TODO: Call exit()
diff --git a/lib/libc/include/auxv.h b/lib/libc/include/auxv.h
new file mode 100644
index 0000000..307d031
--- /dev/null
+++ b/lib/libc/include/auxv.h
@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of Hyra nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _AUXV_H
+#define _AUXV_H
+
+#define AT_NULL 0
+#define AT_ENTRY 1
+#define AT_PHDR 2
+#define AT_PHENT 3
+#define AT_PHNUM 4
+#define AT_EXECPATH 5
+#define AT_SECURE 6
+#define AT_RANDOM 7
+#define AT_EXECFN 8
+
+#define AT_MAX_COUNT 9
+
+struct auxv_entry {
+ uint64_t tag;
+ union {
+ uint64_t val;
+ void* ptr;
+ };
+};
+
+#endif /* _AUXV_H */
diff --git a/lib/libc/include/elf.h b/lib/libc/include/elf.h
new file mode 100644
index 0000000..af2d65a
--- /dev/null
+++ b/lib/libc/include/elf.h
@@ -0,0 +1,499 @@
+/*
+ * Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of Hyra nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _SYS_ELF_H_
+#define _SYS_ELF_H_
+
+#include <sys/types.h>
+
+/* Type for a 16-bit quantity. */
+typedef uint16_t Elf32_Half;
+typedef uint16_t Elf64_Half;
+
+/* Types for signed and unsigned 32-bit quantities. */
+typedef uint32_t Elf32_Word;
+typedef int32_t Elf32_Sword;
+typedef uint32_t Elf64_Word;
+typedef int32_t Elf64_Sword;
+
+/* Types for signed and unsigned 64-bit quantities. */
+typedef uint64_t Elf32_Xword;
+typedef int64_t Elf32_Sxword;
+typedef uint64_t Elf64_Xword;
+typedef int64_t Elf64_Sxword;
+
+/* Type of addresses. */
+typedef uint32_t Elf32_Addr;
+typedef uint64_t Elf64_Addr;
+
+/* Type of file offsets. */
+typedef uint32_t Elf32_Off;
+typedef uint64_t Elf64_Off;
+
+/* Type for section indices, which are 16-bit quantities. */
+typedef uint16_t Elf32_Section;
+typedef uint16_t Elf64_Section;
+
+/* Type for version symbol information. */
+typedef Elf32_Half Elf32_Versym;
+typedef Elf64_Half Elf64_Versym;
+
+#define EI_MAG0 0 /* File identification byte 0 index */
+#define ELFMAG0 0x7f /* Magic number byte 0 */
+
+#define EI_MAG1 1 /* File identification byte 1 index */
+#define ELFMAG1 'E' /* Magic number byte 1 */
+
+#define EI_MAG2 2 /* File identification byte 2 index */
+#define ELFMAG2 'L' /* Magic number byte 2 */
+
+#define EI_MAG3 3 /* File identification byte 3 index */
+#define ELFMAG3 'F' /* Magic number byte 3 */
+
+/* Conglomeration of the identification bytes, for easy testing as a word. */
+#define ELFMAG "\177ELF"
+#define SELFMAG 4
+
+#define EI_CLASS 4 /* File class byte index */
+#define ELFCLASSNONE 0 /* Invalid class */
+#define ELFCLASS32 1 /* 32-bit objects */
+#define ELFCLASS64 2 /* 64-bit objects */
+#define ELFCLASSNUM 3
+
+#define EI_DATA 5 /* Data encoding byte index */
+#define ELFDATANONE 0 /* Invalid data encoding */
+#define ELFDATA2LSB 1 /* 2's complement, little endian */
+#define ELFDATA2MSB 2 /* 2's complement, big endian */
+#define ELFDATANUM 3
+
+#define EI_VERSION 6 /* File version byte index */
+ /* Value must be EV_CURRENT */
+
+#define EI_OSABI 7 /* OS ABI identification */
+#define ELFOSABI_NONE 0 /* UNIX System V ABI */
+#define ELFOSABI_SYSV 0 /* Alias. */
+#define ELFOSABI_HPUX 1 /* HP-UX */
+#define ELFOSABI_NETBSD 2 /* NetBSD. */
+#define ELFOSABI_GNU 3 /* Object uses GNU ELF extensions. */
+#define ELFOSABI_LINUX ELFOSABI_GNU /* Compatibility alias. */
+#define ELFOSABI_SOLARIS 6 /* Sun Solaris. */
+#define ELFOSABI_AIX 7 /* IBM AIX. */
+#define ELFOSABI_IRIX 8 /* SGI Irix. */
+#define ELFOSABI_FREEBSD 9 /* FreeBSD. */
+#define ELFOSABI_TRU64 10 /* Compaq TRU64 UNIX. */
+#define ELFOSABI_MODESTO 11 /* Novell Modesto. */
+#define ELFOSABI_OPENBSD 12 /* OpenBSD. */
+#define ELFOSABI_ARM_AEABI 64 /* ARM EABI */
+#define ELFOSABI_ARM 97 /* ARM */
+#define ELFOSABI_STANDALONE 255 /* Standalone (embedded) application */
+
+#define EI_ABIVERSION 8 /* ABI version */
+
+#define EI_PAD 9 /* Byte index of padding bytes */
+
+/* Legal values for e_type (object file type). */
+
+#define ET_NONE 0 /* No file type */
+#define ET_REL 1 /* Relocatable file */
+#define ET_EXEC 2 /* Executable file */
+#define ET_DYN 3 /* Shared object file */
+#define ET_CORE 4 /* Core file */
+#define ET_NUM 5 /* Number of defined types */
+#define ET_LOOS 0xfe00 /* OS-specific range start */
+#define ET_HIOS 0xfeff /* OS-specific range end */
+#define ET_LOPROC 0xff00 /* Processor-specific range start */
+#define ET_HIPROC 0xffff /* Processor-specific range end */
+
+/* Legal values for e_machine (architecture). */
+
+#define EM_NONE 0 /* No machine */
+#define EM_M32 1 /* AT&T WE 32100 */
+#define EM_SPARC 2 /* SUN SPARC */
+#define EM_386 3 /* Intel 80386 */
+#define EM_68K 4 /* Motorola m68k family */
+#define EM_88K 5 /* Motorola m88k family */
+#define EM_IAMCU 6 /* Intel MCU */
+#define EM_860 7 /* Intel 80860 */
+#define EM_MIPS 8 /* MIPS R3000 big-endian */
+#define EM_S370 9 /* IBM System/370 */
+#define EM_MIPS_RS3_LE 10 /* MIPS R3000 little-endian */
+ /* reserved 11-14 */
+#define EM_PARISC 15 /* HPPA */
+ /* reserved 16 */
+#define EM_VPP500 17 /* Fujitsu VPP500 */
+#define EM_SPARC32PLUS 18 /* Sun's "v8plus" */
+#define EM_960 19 /* Intel 80960 */
+#define EM_PPC 20 /* PowerPC */
+#define EM_PPC64 21 /* PowerPC 64-bit */
+#define EM_S390 22 /* IBM S390 */
+#define EM_SPU 23 /* IBM SPU/SPC */
+ /* reserved 24-35 */
+#define EM_V800 36 /* NEC V800 series */
+#define EM_FR20 37 /* Fujitsu FR20 */
+#define EM_RH32 38 /* TRW RH-32 */
+#define EM_RCE 39 /* Motorola RCE */
+#define EM_ARM 40 /* ARM */
+#define EM_FAKE_ALPHA 41 /* Digital Alpha */
+#define EM_SH 42 /* Hitachi SH */
+#define EM_SPARCV9 43 /* SPARC v9 64-bit */
+#define EM_TRICORE 44 /* Siemens Tricore */
+#define EM_ARC 45 /* Argonaut RISC Core */
+#define EM_H8_300 46 /* Hitachi H8/300 */
+#define EM_H8_300H 47 /* Hitachi H8/300H */
+#define EM_H8S 48 /* Hitachi H8S */
+#define EM_H8_500 49 /* Hitachi H8/500 */
+#define EM_IA_64 50 /* Intel Merced */
+#define EM_MIPS_X 51 /* Stanford MIPS-X */
+#define EM_COLDFIRE 52 /* Motorola Coldfire */
+#define EM_68HC12 53 /* Motorola M68HC12 */
+#define EM_MMA 54 /* Fujitsu MMA Multimedia Accelerator */
+#define EM_PCP 55 /* Siemens PCP */
+#define EM_NCPU 56 /* Sony nCPU embeeded RISC */
+#define EM_NDR1 57 /* Denso NDR1 microprocessor */
+#define EM_STARCORE 58 /* Motorola Start*Core processor */
+#define EM_ME16 59 /* Toyota ME16 processor */
+#define EM_ST100 60 /* STMicroelectronic ST100 processor */
+#define EM_TINYJ 61 /* Advanced Logic Corp. Tinyj emb.fam */
+#define EM_X86_64 62 /* AMD x86-64 architecture */
+#define EM_PDSP 63 /* Sony DSP Processor */
+#define EM_PDP10 64 /* Digital PDP-10 */
+#define EM_PDP11 65 /* Digital PDP-11 */
+#define EM_FX66 66 /* Siemens FX66 microcontroller */
+#define EM_ST9PLUS 67 /* STMicroelectronics ST9+ 8/16 mc */
+#define EM_ST7 68 /* STmicroelectronics ST7 8 bit mc */
+#define EM_68HC16 69 /* Motorola MC68HC16 microcontroller */
+#define EM_68HC11 70 /* Motorola MC68HC11 microcontroller */
+#define EM_68HC08 71 /* Motorola MC68HC08 microcontroller */
+#define EM_68HC05 72 /* Motorola MC68HC05 microcontroller */
+#define EM_SVX 73 /* Silicon Graphics SVx */
+#define EM_ST19 74 /* STMicroelectronics ST19 8 bit mc */
+#define EM_VAX 75 /* Digital VAX */
+#define EM_CRIS 76 /* Axis Communications 32-bit emb.proc */
+#define EM_JAVELIN 77 /* Infineon Technologies 32-bit emb.proc */
+#define EM_FIREPATH 78 /* Element 14 64-bit DSP Processor */
+#define EM_ZSP 79 /* LSI Logic 16-bit DSP Processor */
+#define EM_MMIX 80 /* Donald Knuth's educational 64-bit proc */
+#define EM_HUANY 81 /* Harvard University machine-independent object files */
+#define EM_PRISM 82 /* SiTera Prism */
+#define EM_AVR 83 /* Atmel AVR 8-bit microcontroller */
+#define EM_FR30 84 /* Fujitsu FR30 */
+#define EM_D10V 85 /* Mitsubishi D10V */
+#define EM_D30V 86 /* Mitsubishi D30V */
+#define EM_V850 87 /* NEC v850 */
+#define EM_M32R 88 /* Mitsubishi M32R */
+#define EM_MN10300 89 /* Matsushita MN10300 */
+#define EM_MN10200 90 /* Matsushita MN10200 */
+#define EM_PJ 91 /* picoJava */
+#define EM_OPENRISC 92 /* OpenRISC 32-bit embedded processor */
+#define EM_ARC_COMPACT 93 /* ARC International ARCompact */
+#define EM_XTENSA 94 /* Tensilica Xtensa Architecture */
+#define EM_VIDEOCORE 95 /* Alphamosaic VideoCore */
+#define EM_TMM_GPP 96 /* Thompson Multimedia General Purpose Proc */
+#define EM_NS32K 97 /* National Semi. 32000 */
+#define EM_TPC 98 /* Tenor Network TPC */
+#define EM_SNP1K 99 /* Trebia SNP 1000 */
+#define EM_ST200 100 /* STMicroelectronics ST200 */
+#define EM_IP2K 101 /* Ubicom IP2xxx */
+#define EM_MAX 102 /* MAX processor */
+#define EM_CR 103 /* National Semi. CompactRISC */
+#define EM_F2MC16 104 /* Fujitsu F2MC16 */
+#define EM_MSP430 105 /* Texas Instruments msp430 */
+#define EM_BLACKFIN 106 /* Analog Devices Blackfin DSP */
+#define EM_SE_C33 107 /* Seiko Epson S1C33 family */
+#define EM_SEP 108 /* Sharp embedded microprocessor */
+#define EM_ARCA 109 /* Arca RISC */
+#define EM_UNICORE 110 /* PKU-Unity & MPRC Peking Uni. mc series */
+#define EM_EXCESS 111 /* eXcess configurable cpu */
+#define EM_DXP 112 /* Icera Semi. Deep Execution Processor */
+#define EM_ALTERA_NIOS2 113 /* Altera Nios II */
+#define EM_CRX 114 /* National Semi. CompactRISC CRX */
+#define EM_XGATE 115 /* Motorola XGATE */
+#define EM_C166 116 /* Infineon C16x/XC16x */
+#define EM_M16C 117 /* Renesas M16C */
+#define EM_DSPIC30F 118 /* Microchip Technology dsPIC30F */
+#define EM_CE 119 /* Freescale Communication Engine RISC */
+#define EM_M32C 120 /* Renesas M32C */
+ /* reserved 121-130 */
+#define EM_TSK3000 131 /* Altium TSK3000 */
+#define EM_RS08 132 /* Freescale RS08 */
+#define EM_SHARC 133 /* Analog Devices SHARC family */
+#define EM_ECOG2 134 /* Cyan Technology eCOG2 */
+#define EM_SCORE7 135 /* Sunplus S+core7 RISC */
+#define EM_DSP24 136 /* New Japan Radio (NJR) 24-bit DSP */
+#define EM_VIDEOCORE3 137 /* Broadcom VideoCore III */
+#define EM_LATTICEMICO32 138 /* RISC for Lattice FPGA */
+#define EM_SE_C17 139 /* Seiko Epson C17 */
+#define EM_TI_C6000 140 /* Texas Instruments TMS320C6000 DSP */
+#define EM_TI_C2000 141 /* Texas Instruments TMS320C2000 DSP */
+#define EM_TI_C5500 142 /* Texas Instruments TMS320C55x DSP */
+#define EM_TI_ARP32 143 /* Texas Instruments App. Specific RISC */
+#define EM_TI_PRU 144 /* Texas Instruments Prog. Realtime Unit */
+ /* reserved 145-159 */
+#define EM_MMDSP_PLUS 160 /* STMicroelectronics 64bit VLIW DSP */
+#define EM_CYPRESS_M8C 161 /* Cypress M8C */
+#define EM_R32C 162 /* Renesas R32C */
+#define EM_TRIMEDIA 163 /* NXP Semi. TriMedia */
+#define EM_QDSP6 164 /* QUALCOMM DSP6 */
+#define EM_8051 165 /* Intel 8051 and variants */
+#define EM_STXP7X 166 /* STMicroelectronics STxP7x */
+#define EM_NDS32 167 /* Andes Tech. compact code emb. RISC */
+#define EM_ECOG1X 168 /* Cyan Technology eCOG1X */
+#define EM_MAXQ30 169 /* Dallas Semi. MAXQ30 mc */
+#define EM_XIMO16 170 /* New Japan Radio (NJR) 16-bit DSP */
+#define EM_MANIK 171 /* M2000 Reconfigurable RISC */
+#define EM_CRAYNV2 172 /* Cray NV2 vector architecture */
+#define EM_RX 173 /* Renesas RX */
+#define EM_METAG 174 /* Imagination Tech. META */
+#define EM_MCST_ELBRUS 175 /* MCST Elbrus */
+#define EM_ECOG16 176 /* Cyan Technology eCOG16 */
+#define EM_CR16 177 /* National Semi. CompactRISC CR16 */
+#define EM_ETPU 178 /* Freescale Extended Time Processing Unit */
+#define EM_SLE9X 179 /* Infineon Tech. SLE9X */
+#define EM_L10M 180 /* Intel L10M */
+#define EM_K10M 181 /* Intel K10M */
+ /* reserved 182 */
+#define EM_AARCH64 183 /* ARM AARCH64 */
+ /* reserved 184 */
+#define EM_AVR32 185 /* Amtel 32-bit microprocessor */
+#define EM_STM8 186 /* STMicroelectronics STM8 */
+#define EM_TILE64 187 /* Tileta TILE64 */
+#define EM_TILEPRO 188 /* Tilera TILEPro */
+#define EM_MICROBLAZE 189 /* Xilinx MicroBlaze */
+#define EM_CUDA 190 /* NVIDIA CUDA */
+#define EM_TILEGX 191 /* Tilera TILE-Gx */
+#define EM_CLOUDSHIELD 192 /* CloudShield */
+#define EM_COREA_1ST 193 /* KIPO-KAIST Core-A 1st gen. */
+#define EM_COREA_2ND 194 /* KIPO-KAIST Core-A 2nd gen. */
+#define EM_ARC_COMPACT2 195 /* Synopsys ARCompact V2 */
+#define EM_OPEN8 196 /* Open8 RISC */
+#define EM_RL78 197 /* Renesas RL78 */
+#define EM_VIDEOCORE5 198 /* Broadcom VideoCore V */
+#define EM_78KOR 199 /* Renesas 78KOR */
+#define EM_56800EX 200 /* Freescale 56800EX DSC */
+#define EM_BA1 201 /* Beyond BA1 */
+#define EM_BA2 202 /* Beyond BA2 */
+#define EM_XCORE 203 /* XMOS xCORE */
+#define EM_MCHP_PIC 204 /* Microchip 8-bit PIC(r) */
+ /* reserved 205-209 */
+#define EM_KM32 210 /* KM211 KM32 */
+#define EM_KMX32 211 /* KM211 KMX32 */
+#define EM_EMX16 212 /* KM211 KMX16 */
+#define EM_EMX8 213 /* KM211 KMX8 */
+#define EM_KVARC 214 /* KM211 KVARC */
+#define EM_CDP 215 /* Paneve CDP */
+#define EM_COGE 216 /* Cognitive Smart Memory Processor */
+#define EM_COOL 217 /* Bluechip CoolEngine */
+#define EM_NORC 218 /* Nanoradio Optimized RISC */
+#define EM_CSR_KALIMBA 219 /* CSR Kalimba */
+#define EM_Z80 220 /* Zilog Z80 */
+#define EM_VISIUM 221 /* Controls and Data Services VISIUMcore */
+#define EM_FT32 222 /* FTDI Chip FT32 */
+#define EM_MOXIE 223 /* Moxie processor */
+#define EM_AMDGPU 224 /* AMD GPU */
+ /* reserved 225-242 */
+#define EM_RISCV 243 /* RISC-V */
+
+#define EM_BPF 247 /* Linux BPF -- in-kernel virtual machine */
+
+#define EM_NUM 248
+
+/* Old spellings/synonyms. */
+
+#define EM_ARC_A5 EM_ARC_COMPACT
+
+/* If it is necessary to assign new unofficial EM_* values, please
+ pick large random numbers (0x8523, 0xa7f2, etc.) to minimize the
+ chances of collision with official or non-GNU unofficial values. */
+
+#define EM_ALPHA 0x9026
+
+/* Legal values for e_version (version). */
+
+#define EV_NONE 0 /* Invalid ELF version */
+#define EV_CURRENT 1 /* Current version */
+#define EV_NUM 2
+
+#define EI_NIDENT (16)
+
+#define PT_NULL 0 /* Program header table entry unused */
+#define PT_LOAD 1 /* Loadable program segment */
+#define PT_DYNAMIC 2 /* Dynamic linking information */
+#define PT_INTERP 3 /* Program interpreter */
+#define PT_NOTE 4 /* Auxiliary information */
+#define PT_SHLIB 5 /* Reserved */
+#define PT_PHDR 6 /* Entry for header table itself */
+#define PT_TLS 7 /* Thread-local storage segment */
+#define PT_NUM 8 /* Number of defined types */
+#define PT_LOOS 0x60000000 /* Start of OS-specific */
+#define PT_GNU_EH_FRAME 0x6474e550 /* GCC .eh_frame_hdr segment */
+#define PT_GNU_STACK 0x6474e551 /* Indicates stack executability */
+#define PT_GNU_RELRO 0x6474e552 /* Read-only after relocation */
+#define PT_LOSUNW 0x6ffffffa
+#define PT_SUNWBSS 0x6ffffffa /* Sun Specific segment */
+#define PT_SUNWSTACK 0x6ffffffb /* Stack segment */
+#define PT_HISUNW 0x6fffffff
+#define PT_HIOS 0x6fffffff /* End of OS-specific */
+#define PT_LOPROC 0x70000000 /* Start of processor-specific */
+#define PT_HIPROC 0x7fffffff /* End of processor-specific */
+
+/* Legal values for p_flags (segment flags). */
+
+#define PF_X (1 << 0) /* Segment is executable */
+#define PF_W (1 << 1) /* Segment is writable */
+#define PF_R (1 << 2) /* Segment is readable */
+#define PF_MASKOS 0x0ff00000 /* OS-specific */
+#define PF_MASKPROC 0xf0000000 /* Processor-specific */
+
+/* Legal values for note segment descriptor types for core files. */
+
+#define NT_PRSTATUS 1 /* Contains copy of prstatus struct */
+#define NT_PRFPREG 2 /* Contains copy of fpregset
+ struct. */
+#define NT_FPREGSET 2 /* Contains copy of fpregset struct */
+#define NT_PRPSINFO 3 /* Contains copy of prpsinfo struct */
+#define NT_PRXREG 4 /* Contains copy of prxregset struct */
+#define NT_TASKSTRUCT 4 /* Contains copy of task structure */
+#define NT_PLATFORM 5 /* String from sysinfo(SI_PLATFORM) */
+#define NT_AUXV 6 /* Contains copy of auxv array */
+#define NT_GWINDOWS 7 /* Contains copy of gwindows struct */
+#define NT_ASRS 8 /* Contains copy of asrset struct */
+#define NT_PSTATUS 10 /* Contains copy of pstatus struct */
+#define NT_PSINFO 13 /* Contains copy of psinfo struct */
+#define NT_PRCRED 14 /* Contains copy of prcred struct */
+#define NT_UTSNAME 15 /* Contains copy of utsname struct */
+#define NT_LWPSTATUS 16 /* Contains copy of lwpstatus struct */
+#define NT_LWPSINFO 17 /* Contains copy of lwpinfo struct */
+#define NT_PRFPXREG 20 /* Contains copy of fprxregset struct */
+#define NT_SIGINFO 0x53494749 /* Contains copy of siginfo_t,
+ size might increase */
+#define NT_FILE 0x46494c45 /* Contains information about mapped
+ files */
+#define NT_PRXFPREG 0x46e62b7f /* Contains copy of user_fxsr_struct */
+#define NT_PPC_VMX 0x100 /* PowerPC Altivec/VMX registers */
+#define NT_PPC_SPE 0x101 /* PowerPC SPE/EVR registers */
+#define NT_PPC_VSX 0x102 /* PowerPC VSX registers */
+#define NT_PPC_TAR 0x103 /* Target Address Register */
+#define NT_PPC_PPR 0x104 /* Program Priority Register */
+#define NT_PPC_DSCR 0x105 /* Data Stream Control Register */
+#define NT_PPC_EBB 0x106 /* Event Based Branch Registers */
+#define NT_PPC_PMU 0x107 /* Performance Monitor Registers */
+#define NT_PPC_TM_CGPR 0x108 /* TM checkpointed GPR Registers */
+#define NT_PPC_TM_CFPR 0x109 /* TM checkpointed FPR Registers */
+#define NT_PPC_TM_CVMX 0x10a /* TM checkpointed VMX Registers */
+#define NT_PPC_TM_CVSX 0x10b /* TM checkpointed VSX Registers */
+#define NT_PPC_TM_SPR 0x10c /* TM Special Purpose Registers */
+#define NT_PPC_TM_CTAR 0x10d /* TM checkpointed Target Address
+ Register */
+#define NT_PPC_TM_CPPR 0x10e /* TM checkpointed Program Priority
+ Register */
+#define NT_PPC_TM_CDSCR 0x10f /* TM checkpointed Data Stream Control
+ Register */
+#define NT_PPC_PKEY 0x110 /* Memory Protection Keys
+ registers. */
+#define NT_386_TLS 0x200 /* i386 TLS slots (struct user_desc) */
+#define NT_386_IOPERM 0x201 /* x86 io permission bitmap (1=deny) */
+#define NT_X86_XSTATE 0x202 /* x86 extended state using xsave */
+#define NT_S390_HIGH_GPRS 0x300 /* s390 upper register halves */
+#define NT_S390_TIMER 0x301 /* s390 timer register */
+#define NT_S390_TODCMP 0x302 /* s390 TOD clock comparator register */
+#define NT_S390_TODPREG 0x303 /* s390 TOD programmable register */
+#define NT_S390_CTRS 0x304 /* s390 control registers */
+#define NT_S390_PREFIX 0x305 /* s390 prefix register */
+#define NT_S390_LAST_BREAK 0x306 /* s390 breaking event address */
+#define NT_S390_SYSTEM_CALL 0x307 /* s390 system call restart data */
+#define NT_S390_TDB 0x308 /* s390 transaction diagnostic block */
+#define NT_S390_VXRS_LOW 0x309 /* s390 vector registers 0-15
+ upper half. */
+#define NT_S390_VXRS_HIGH 0x30a /* s390 vector registers 16-31. */
+#define NT_S390_GS_CB 0x30b /* s390 guarded storage registers. */
+#define NT_S390_GS_BC 0x30c /* s390 guarded storage
+ broadcast control block. */
+#define NT_S390_RI_CB 0x30d /* s390 runtime instrumentation. */
+#define NT_ARM_VFP 0x400 /* ARM VFP/NEON registers */
+#define NT_ARM_TLS 0x401 /* ARM TLS register */
+#define NT_ARM_HW_BREAK 0x402 /* ARM hardware breakpoint registers */
+#define NT_ARM_HW_WATCH 0x403 /* ARM hardware watchpoint registers */
+#define NT_ARM_SYSTEM_CALL 0x404 /* ARM system call number */
+#define NT_ARM_SVE 0x405 /* ARM Scalable Vector Extension
+ registers */
+#define NT_VMCOREDD 0x700 /* Vmcore Device Dump Note. */
+
+/* Legal values for the note segment descriptor types for object files. */
+
+#define NT_VERSION 1 /* Contains a version string. */
+
+typedef struct
+{
+ unsigned char e_ident[EI_NIDENT]; /* Magic number and other info */
+ Elf64_Half e_type; /* Object file type */
+ Elf64_Half e_machine; /* Architecture */
+ Elf64_Word e_version; /* Object file version */
+ Elf64_Addr e_entry; /* Entry point virtual address */
+ Elf64_Off e_phoff; /* Program header table file offset */
+ Elf64_Off e_shoff; /* Section header table file offset */
+ Elf64_Word e_flags; /* Processor-specific flags */
+ Elf64_Half e_ehsize; /* ELF header size in bytes */
+ Elf64_Half e_phentsize; /* Program header table entry size */
+ Elf64_Half e_phnum; /* Program header table entry count */
+ Elf64_Half e_shentsize; /* Section header table entry size */
+ Elf64_Half e_shnum; /* Section header table entry count */
+ Elf64_Half e_shstrndx; /* Section header string table index */
+} Elf64_Ehdr;
+
+typedef struct
+{
+ Elf64_Word p_type; /* Segment type */
+ Elf64_Word p_flags; /* Segment flags */
+ Elf64_Off p_offset; /* Segment file offset */
+ Elf64_Addr p_vaddr; /* Segment virtual address */
+ Elf64_Addr p_paddr; /* Segment physical address */
+ Elf64_Xword p_filesz; /* Segment size in file */
+ Elf64_Xword p_memsz; /* Segment size in memory */
+ Elf64_Xword p_align; /* Segment alignment */
+} Elf64_Phdr;
+
+typedef struct {
+ Elf64_Addr r_offset; /* Location at which to apply the action */
+ Elf64_Xword r_info; /* index and type of relocation */
+} Elf64_Rel;
+
+typedef struct {
+ Elf64_Word sh_name; /* Section name, index in string tbl */
+ Elf64_Word sh_type; /* Type of section */
+ Elf64_Xword sh_flags; /* Miscellaneous section attributes */
+ Elf64_Addr sh_addr; /* Section virtual addr at execution */
+ Elf64_Off sh_offset; /* Section file offset */
+ Elf64_Xword sh_size; /* Size of section in bytes */
+ Elf64_Word sh_link; /* Index of another section */
+ Elf64_Word sh_info; /* Additional section information */
+ Elf64_Xword sh_addralign; /* Section alignment */
+ Elf64_Xword sh_entsize; /* Entry size if section holds table */
+} Elf64_Shdr;
+
+#endif /* _SYS_ELF_H_ */
diff --git a/lib/libc/include/stddef.h b/lib/libc/include/stddef.h
new file mode 100644
index 0000000..ba469c1
--- /dev/null
+++ b/lib/libc/include/stddef.h
@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of Hyra nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _STDDEF_H
+#define _STDDEF_H
+
+#define NULL ((void *) 0)
+
+#endif /* !_STDDEF_H */
diff --git a/lib/libc/include/stdint.h b/lib/libc/include/stdint.h
new file mode 100644
index 0000000..2fb0752
--- /dev/null
+++ b/lib/libc/include/stdint.h
@@ -0,0 +1,110 @@
+/*
+ * Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of Hyra nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _STDINT_H
+#define _STDINT_H
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+#if defined(__GNUC__) && \
+ ( (__GNUC__ >= 4) || \
+ ( (__GNUC__ >= 3) && defined(__GNUC_MINOR__) && (__GNUC_MINOR__ > 2) ) )
+#define __STDINT_EXP(x) __##x##__
+#else
+#define __STDINT_EXP(x) x
+#include <limits.h>
+#endif
+
+#if __STDINT_EXP(SCHAR_MAX) == 0x7f
+typedef signed char int8_t ;
+typedef unsigned char uint8_t ;
+#define __int8_t_defined 1
+#endif
+
+#if __STDINT_EXP(SHRT_MAX) == 0x7fff
+typedef signed short int16_t;
+typedef unsigned short uint16_t;
+#define __int16_t_defined 1
+#elif __STDINT_EXP(INT_MAX) == 0x7fff
+typedef signed int int16_t;
+typedef unsigned int uint16_t;
+#define __int16_t_defined 1
+#elif __STDINT_EXP(SCHAR_MAX) == 0x7fff
+typedef signed char int16_t;
+typedef unsigned char uint16_t;
+#define __int16_t_defined 1
+#endif
+
+#if __have_long32
+typedef signed long int32_t;
+typedef unsigned long uint32_t;
+#define __int32_t_defined 1
+#elif __STDINT_EXP(INT_MAX) == 0x7fffffffL
+typedef signed int int32_t;
+typedef unsigned int uint32_t;
+#define __int32_t_defined 1
+#elif __STDINT_EXP(SHRT_MAX) == 0x7fffffffL
+typedef signed short int32_t;
+typedef unsigned short uint32_t;
+#define __int32_t_defined 1
+#elif __STDINT_EXP(SCHAR_MAX) == 0x7fffffffL
+typedef signed char int32_t;
+typedef unsigned char uint32_t;
+#define __int32_t_defined 1
+#endif
+
+#if __SIZEOF_SIZE_T__ == 8
+typedef unsigned long long uint64_t;
+#endif
+
+#if defined(__PTRDIFF_TYPE__)
+typedef signed __PTRDIFF_TYPE__ intptr_t;
+typedef unsigned __PTRDIFF_TYPE__ uintptr_t;
+#define INTPTR_MAX PTRDIFF_MAX
+#define INTPTR_MIN PTRDIFF_MIN
+#ifdef __UINTPTR_MAX__
+#define UINTPTR_MAX __UINTPTR_MAX__
+#else
+#define UINTPTR_MAX (2UL * PTRDIFF_MAX + 1)
+#endif
+#else
+typedef signed long intptr_t;
+typedef unsigned long uintptr_t;
+#define INTPTR_MAX __STDINT_EXP(LONG_MAX)
+#define INTPTR_MIN (-__STDINT_EXP(LONG_MAX) - 1)
+#define UINTPTR_MAX (__STDINT_EXP(LONG_MAX) * 2UL + 1)
+#endif
+
+#if defined(__cplusplus)
+}
+#endif
+
+#endif /* !_STDINT_H */
diff --git a/lib/libc/include/sys/syscall.h b/lib/libc/include/sys/syscall.h
new file mode 100644
index 0000000..b5e5fc2
--- /dev/null
+++ b/lib/libc/include/sys/syscall.h
@@ -0,0 +1,117 @@
+/*
+ * Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of Hyra nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _SYS_SYSCALL_H
+#define _SYS_SYSCALL_H
+
+#if !defined(__ASSEMBLER__)
+#include <stdint.h>
+#endif
+
+#define SYS_debug 0
+#define SYS_exit 1
+
+#if !defined(__ASSEMBLER__)
+__attribute__((__always_inline__))
+static inline long
+syscall0(uint64_t code)
+{
+ volatile long ret;
+ asm volatile("int $0x80" : "=a"(ret) : "a"(code));
+ return ret;
+}
+
+__attribute__((__always_inline__))
+static inline long
+syscall1(uint64_t code, uint64_t arg0)
+{
+ volatile long ret;
+ asm volatile("int $0x80" : "=a"(ret) : "a"(code), "D"(arg0) : "memory");
+ return ret;
+}
+
+__attribute__((__always_inline__))
+static long inline
+syscall2(uint64_t code, uint64_t arg0, uint64_t arg1)
+{
+ volatile long ret;
+ asm volatile("int $0x80" : "=a"(ret) : "a"(code), "D"(arg0), "S"(arg1) : "memory");
+ return ret;
+}
+
+__attribute__((__always_inline__))
+static inline long
+syscall3(uint64_t code, uint64_t arg0, uint64_t arg1, uint64_t arg2)
+{
+ volatile long ret;
+ asm volatile("int $0x80" : "=a"(ret) : "a"(code), "D"(arg0), "S"(arg1), "d"(arg2) : "memory");
+ return ret;
+}
+
+__attribute__((__always_inline__))
+static inline long
+syscall4(uint64_t code, uint64_t arg0, uint64_t arg1, uint64_t arg2, uint64_t arg3)
+{
+ volatile long ret;
+ register uint64_t _arg3 asm("r10") = arg3;
+ asm volatile("int $0x80" : "=a"(ret) : "a"(code), "D"(arg0), "S"(arg1), "d"(arg2), "r"(_arg3) : "memory");
+ return ret;
+}
+
+__attribute__((__always_inline__))
+static inline long
+syscall5(uint64_t code, uint64_t arg0, uint64_t arg1, uint64_t arg2, uint64_t arg3, uint64_t arg4)
+{
+ volatile long ret;
+ register uint64_t _arg3 asm("r10") = arg3;
+ register uint64_t _arg4 asm("r9") = arg4;
+ asm volatile("int $0x80" : "=a"(ret) : "a"(code), "D"(arg0), "S"(arg1), "d"(arg2), "r"(_arg3), "r"(_arg4) : "memory");
+ return ret;
+}
+
+__attribute__((__always_inline__))
+static inline long
+syscall6(uint64_t code, uint64_t arg0, uint64_t arg1, uint64_t arg2, uint64_t arg3, uint64_t arg4, uint64_t arg5) {
+ volatile long ret;
+ register uint64_t _arg3 asm("r10") = arg3;
+ register uint64_t _arg4 asm("r9") = arg4;
+ register uint64_t _arg5 asm("r8") = arg5;
+ asm volatile("int $0x80" : "=a"(ret) : "a"(code), "D"(arg0), "S"(arg1), "d"(arg2), "r"(_arg3), "r"(_arg4), "r"(_arg5) : "memory");
+ return ret;
+}
+
+#define _SYSCALL_N(a0, a1, a2, a3, a4, a5, a6, name, ...) \
+ name
+
+#define syscall(...) \
+_SYSCALL_N(__VA_ARGS__, syscall6, syscall5, \
+ syscall4, syscall3, syscall2, syscall1, \
+ syscall0)(__VA_ARGS__)
+#endif /* !defined(__ASSEMBLER__) */
+#endif /* !_SYS_SYSCALL_H */
diff --git a/lib/libc/linker/entry.S b/lib/libc/linker/entry.S
new file mode 100644
index 0000000..1f982f9
--- /dev/null
+++ b/lib/libc/linker/entry.S
@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of Hyra nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#if !defined(__hyra__)
+#error "Hyra supported only"
+#endif
+
+#include <sys/syscall.h>
+
+.section .text, "ax", @progbits
+.globl _start
+_start:
+ // Mark end of callstack
+ xor %rbp, %rbp
+
+ // Load process context as per the sysv AMD64 ABI
+ lea (%rsp), %rdi
+ call entry
+
+ // We are done, now we exit
+ mov $SYS_exit, %rax
+ xor %rdi, %rdi
+ int $0x80
+ nop
+ ud2
diff --git a/lib/libc/linker/entry.c b/lib/libc/linker/entry.c
new file mode 100644
index 0000000..64306b3
--- /dev/null
+++ b/lib/libc/linker/entry.c
@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of Hyra nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/syscall.h>
+#include <stdint.h>
+#include <stddef.h>
+#include <elf.h>
+#include <auxv.h>
+
+#if !defined(__hyra__)
+#error "Hyra supported only"
+#endif
+
+void
+entry(const uint64_t *ctx)
+{
+ uint64_t argc = *ctx;
+ uint64_t auxv[AT_MAX_COUNT] = {0};
+ int envc;
+
+ const char **argv = (const char **)(ctx + 1);
+ const char **envp = (const char **)(argv + argc + 1);
+ struct auxv_entry *auxvp;
+
+ /* Read-in auxiliary vector */
+ auxvp = (struct auxv_entry *)(envp + envc + 1);
+ for (; auxvp->tag != AT_NULL; ++auxvp) {
+ if (auxvp->tag < AT_MAX_COUNT) {
+ auxv[auxvp->tag] = auxvp->val;
+ }
+ }
+
+ /* TODO */
+}
diff --git a/lib/libc/src/exit.c b/lib/libc/src/exit.c
new file mode 100644
index 0000000..96315e1
--- /dev/null
+++ b/lib/libc/src/exit.c
@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of Hyra nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/syscall.h>
+
+__attribute__((__noreturn__))
+void _exit(int status)
+{
+ syscall(SYS_exit, status);
+ __builtin_unreachable();
+}