Started working on Magenta support

CMakeLists.txt

@@ -1,5 +1,5 @@
 cmake_minimum_required(VERSION 3.5)
-project(photon C ASM-ATT)
+#project(photon C ASM-ATT)
 
 macro(subdirlist result curdir)
     file(GLOB children RELATIVE ${curdir} ${curdir}/*)
@@ -13,7 +13,7 @@ macro(subdirlist result curdir)
 endmacro()
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/cmake/platform.cmake)
-platform_config(${TARGET})
+platform_config(${PHOTON_TARGET})
 
 message(STATUS "Target: ${machine}-${platform}")
 
@@ -40,6 +40,7 @@ file(GLOB photon_libc_crt
     ${CMAKE_CURRENT_SOURCE_DIR}/photon/libc/sys/${platform}/machine/${machine}/crt*.s)
 
 add_library(crt OBJECT ${photon_libc_crt})
+target_compile_options(crt PRIVATE -c)
 
 file(GLOB platform_sources
     ${CMAKE_CURRENT_SOURCE_DIR}/photon/libc/sys/${platform}/*.c
@@ -57,7 +58,12 @@ file(GLOB platform_headers
 set(photon_libc_sources ${photon_libc_sources} ${malloc_sources} ${platform_sources})
 set(photon_libc_headers ${photon_libc_headers} ${platform_headers})
 
-add_library(c SHARED ${photon_libc_sources} ${photon_libc_headers})
+if (PHOTON_STATIC EQUAL 1)
+    add_library(c STATIC ${photon_libc_sources} ${photon_libc_headers})
+else ()
+    add_library(c SHARED ${photon_libc_sources} ${photon_libc_headers})
+endif ()
+
 target_compile_options(c PRIVATE -ffreestanding -nostdlib)
 target_link_libraries(c crt)
 
@@ -65,17 +71,19 @@ target_include_directories(c PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/photon/libc/inc
 target_include_directories(c PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/photon/libc/sys/${platform}/)
 target_include_directories(c PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/sysroot/usr/include)
 
-add_custom_target(sysroot
+add_custom_target(local-root
     DEPENDS ${photon_libc_headers}
     COMMAND ${CMAKE_CURRENT_SOURCE_DIR}/scripts/create-sysroot.sh
         ${CMAKE_CURRENT_SOURCE_DIR}
         ${CMAKE_CURRENT_BINARY_DIR}
         ${platform} ${machine})
 
-add_dependencies(c sysroot)
+add_dependencies(c local-root)
 
 if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
     target_link_libraries(c gcc)
 endif ()
 
-add_subdirectory(tests)
+if (PHOTON_TESTS EQUAL 1)
+    add_subdirectory(tests)
+endif ()

photon/libc/stdlib/dlmalloc/malloc.c

@@ -231,6 +231,14 @@
 
 /* #define WIN32 */
 
+#ifdef __magenta__
+#define LACKS_UNISTD_H
+#define LACKS_SYS_PARAM_H
+#define LACKS_SYS_MMAN_H
+
+#define HAVE_MMAP 0
+#endif
+
 #ifdef WIN32
 
 #define WIN32_LEAN_AND_MEAN

photon/libc/sys/magenta/__fio.h

@@ -0,0 +1,28 @@
+#ifndef SYS_LINUX___FIO_H_
+#define SYS_LINUX___FIO_H_
+
+#include <magenta.h>
+
+#define __FIO_BUFSZ 512
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+struct __io_file {
+    char buf[__FIO_BUFSZ];
+    unsigned int buf_idx;
+    mx_handle_t handle;
+    char err;
+};
+
+extern int __fileno(struct __io_file *f);
+extern unsigned int __fio_write(struct __io_file *f, const char *buf, unsigned int sz);
+extern unsigned int __fio_flush(struct __io_file *f);
+extern int __fio_error(struct __io_file *f);
+
+#if defined(__cplusplus)
+}
+#endif
+
+#endif

photon/libc/sys/magenta/__syscall.h

@@ -0,0 +1,17 @@
+#ifndef SYS_LINUX___SYSCALL_H_
+#define SYS_LINUX___SYSCALL_H_
+
+#include <stdint.h>
+
+extern intptr_t __syscall0(uintptr_t id);
+extern intptr_t __syscall1(uintptr_t id, uintptr_t p0);
+extern intptr_t __syscall2(uintptr_t id, uintptr_t p0, uintptr_t p1);
+extern intptr_t __syscall3(uintptr_t id, uintptr_t p0, uintptr_t p1, uintptr_t p2);
+extern intptr_t __syscall4(uintptr_t id, uintptr_t p0, uintptr_t p1, uintptr_t p2,
+        uintptr_t p3);
+extern intptr_t __syscall5(uintptr_t id, uintptr_t p0, uintptr_t p1, uintptr_t p2,
+        uintptr_t p3, uintptr_t p4);
+extern intptr_t __syscall6(uintptr_t id, uintptr_t p0, uintptr_t p1, uintptr_t p2,
+        uintptr_t p3, uintptr_t p4, uintptr_t p5);
+
+#endif

photon/libc/sys/magenta/__system.h

@@ -0,0 +1,14 @@
+#ifndef SYS_LINUX___SYSTEM_H_
+#define SYS_LINUX___SYSTEM_H_
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+extern _Noreturn void __exit(int code);
+
+#if defined(__cplusplus)
+}
+#endif
+
+#endif

photon/libc/sys/magenta/fio.c

@@ -0,0 +1,53 @@
+#include "__fio.h"
+#include "__syscall.h"
+#include "unistd.h"
+
+struct __io_file __stdin = {};
+struct __io_file __stdout = {};
+struct __io_file __stderr = {};
+
+struct __io_file *stdin = &__stdin;
+struct __io_file *stdout = &__stdout;
+struct __io_file *stderr = &__stderr;
+
+void __fio_init()
+{
+}
+
+int __fileno(struct __io_file *f)
+{
+    return 0;
+}
+
+unsigned int __fio_write(struct __io_file *f, const char *buf, unsigned int sz)
+{
+    for (unsigned int i = 0; i < sz; i++) {
+        if (f->buf_idx >= __FIO_BUFSZ) {
+            __fio_flush(f);
+        }
+
+        f->buf[f->buf_idx++] = buf[i];
+        if (buf[i] == '\n') {
+            __fio_flush(f);
+        }
+    }
+
+    return sz;
+}
+
+unsigned int __fio_flush(struct __io_file *f)
+{
+    ssize_t res = 0;//write(f->fd, f->buf, f->buf_idx);
+    if (res != f->buf_idx) {
+        f->err = 1;
+    }
+
+    size_t flushed = f->buf_idx;
+    f->buf_idx = 0;
+    return flushed;
+}
+
+int __fio_error(struct __io_file *f)
+{
+    return f->err != 0;
+}

photon/libc/sys/magenta/machine/x86_64/crt0.s

@@ -0,0 +1,19 @@
+.global _start
+.type _start, @function
+
+.extern __fio_init
+.type __fio_init, @function
+
+.extern main
+.type main, @function
+
+_start:
+    pop %rbp
+    pop %rdi
+    mov %rsp, %rsi
+    andq $-16, %rsp
+    call __fio_init
+    call main
+    movq %rax, %rdi
+    movq $60, %rax
+    syscall

photon/libc/sys/magenta/machine/x86_64/syscall.c

@@ -0,0 +1,108 @@
+#include <stdint.h>
+
+intptr_t __syscall0(uintptr_t id)
+{
+    intptr_t ret = 0;
+    asm volatile("mov %1, %%rax; syscall; mov %%rax, %0"
+            : "=m" (ret)
+            : "m" (id));
+    return ret;
+}
+
+intptr_t __syscall1(uintptr_t id, uintptr_t p0)
+{
+    intptr_t ret = 0;
+    asm volatile(
+            "mov %1, %%rax;"
+            "mov %2, %%rdi;"
+            "syscall;"
+            "mov %%rax, %0"
+            : "=m" (ret)
+            : "m" (id), "m" (p0));
+    return ret;
+}
+
+intptr_t __syscall2(uintptr_t id, uintptr_t p0, uintptr_t p1)
+{
+    intptr_t ret = 0;
+    asm volatile(
+            "mov %1, %%rax;"
+            "mov %2, %%rdi;"
+            "mov %3, %%rsi;"
+            "syscall;"
+            "mov %%rax, %0"
+            : "=m" (ret)
+            : "m" (id), "m" (p0), "m" (p1));
+    return ret;
+}
+
+intptr_t __syscall3(uintptr_t id, uintptr_t p0, uintptr_t p1, uintptr_t p2)
+{
+    intptr_t ret = 0;
+    asm volatile(
+            "movq %1, %%rax;"
+            "mov %2, %%rdi;"
+            "mov %3, %%rsi;"
+            "mov %4, %%rdx;"
+            "syscall;"
+            "mov %%rax, %0"
+            : "=m" (ret)
+            : "m" (id), "m" (p0), "m" (p1), "m" (p2));
+    return ret;
+}
+
+intptr_t __syscall4(uintptr_t id, uintptr_t p0, uintptr_t p1, uintptr_t p2,
+        uintptr_t p3)
+{
+    intptr_t ret = 0;
+    asm volatile(
+            "mov %1, %%rax;"
+            "mov %2, %%rdi;"
+            "mov %3, %%rsi;"
+            "mov %4, %%rdx;"
+            "mov %5, %%r10;"
+            "syscall;"
+            "mov %%rax, %0"
+            : "=m" (ret)
+            : "m" (id), "m" (p0), "m" (p1), "m" (p2), "m" (p3));
+    return ret;
+}
+
+intptr_t __syscall5(uintptr_t id, uintptr_t p0, uintptr_t p1, uintptr_t p2,
+        uintptr_t p3, uintptr_t p4)
+{
+    intptr_t ret = 0;
+    asm volatile(
+            "mov %1, %%rax;"
+            "mov %2, %%rdi;"
+            "mov %3, %%rsi;"
+            "mov %4, %%rdx;"
+            "mov %5, %%r10;"
+            "mov %6, %%r8;"
+            "syscall;"
+            "mov %%rax, %0"
+            : "=m" (ret)
+            : "m" (id), "m" (p0), "m" (p1), "m" (p2), "m" (p3), "m" (p4));
+    return ret;
+}
+
+intptr_t __syscall6(uintptr_t id, uintptr_t p0, uintptr_t p1, uintptr_t p2,
+        uintptr_t p3, uintptr_t p4, uintptr_t p5)
+{
+    intptr_t ret = 0;
+    asm volatile(
+            "mov %1, %%rax;"
+            "mov %2, %%rdi;"
+            "mov %3, %%rsi;"
+            "mov %4, %%rdx;"
+            "mov %5, %%r10;"
+            "mov %6, %%r8;"
+            "mov %7, %%r9;"
+            "syscall;"
+            "mov %%rax, %0"
+            : "=m" (ret)
+            : "m" (id), "m" (p0), "m" (p1), "m" (p2), "m" (p3), "m" (p4),
+                "m" (p5));
+    return ret;
+}
+

photon/libc/sys/magenta/sys/_errno.h

@@ -0,0 +1,39 @@
+#ifndef SYS_MAGENTA_SYS__ERRNO_H_
+#define SYS_MAGENTA_SYS__ERRNO_H_
+
+#define	EPERM		 1	/* Operation not permitted */
+#define	ENOENT		 2	/* No such file or directory */
+#define	ESRCH		 3	/* No such process */
+#define	EINTR		 4	/* Interrupted system call */
+#define	EIO		     5	/* I/O error */
+#define	ENXIO		 6	/* No such device or address */
+#define	E2BIG		 7	/* Argument list too long */
+#define	ENOEXEC		 8	/* Exec format error */
+#define	EBADF		 9	/* Bad file number */
+#define	ECHILD		10	/* No child processes */
+#define	EAGAIN		11	/* Try again */
+#define	ENOMEM		12	/* Out of memory */
+#define	EACCES		13	/* Permission denied */
+#define	EFAULT		14	/* Bad address */
+#define	ENOTBLK		15	/* Block device required */
+#define	EBUSY		16	/* Device or resource busy */
+#define	EEXIST		17	/* File exists */
+#define	EXDEV		18	/* Cross-device link */
+#define	ENODEV		19	/* No such device */
+#define	ENOTDIR		20	/* Not a directory */
+#define	EISDIR		21	/* Is a directory */
+#define	EINVAL		22	/* Invalid argument */
+#define	ENFILE		23	/* File table overflow */
+#define	EMFILE		24	/* Too many open files */
+#define	ENOTTY		25	/* Not a typewriter */
+#define	ETXTBSY		26	/* Text file busy */
+#define	EFBIG		27	/* File too large */
+#define	ENOSPC		28	/* No space left on device */
+#define	ESPIPE		29	/* Illegal seek */
+#define	EROFS		30	/* Read-only file system */
+#define	EMLINK		31	/* Too many links */
+#define	EPIPE		32	/* Broken pipe */
+#define	EDOM		33	/* Math argument out of domain of func */
+#define	ERANGE		34	/* Math result not representable */
+
+#endif

photon/libc/sys/magenta/sys/_fconst.h

@@ -0,0 +1,10 @@
+#ifndef SYS_LINUX_SYS__FCONST_H_
+#define SYS_LINUX_SYS__FCONST_H_
+
+#define __FILENAME_MAX 1024
+
+#define __SEEK_SET 0
+#define __SEEK_CUR 1
+#define __SEEK_END 2
+
+#endif

photon/libc/sys/magenta/sys/syscall.h

@@ -0,0 +1,24 @@
+#ifndef SYS_LINUX_SYSCALL_H_
+#define SYS_LINUX_SYSCALL_H_
+
+#define SYS_read 0
+#define SYS_write 1
+#define SYS_open 2
+#define SYS_close 3
+#define SYS_stat 4
+#define SYS_fstat 5
+#define SYS_lstat 6
+#define SYS_poll 7
+#define SYS_lseek 8
+#define SYS_mmap 9
+#define SYS_mprotect 10
+#define SYS_munmap 11
+#define SYS_brk 12
+#define SYS_rt_sigaction 13
+#define SYS_rt_sigprocmask 14
+#define SYS_rt_sigreturn 15
+#define SYS_ioctl 16
+#define SYS_mremap 25
+#define SYS__exit 60
+
+#endif

photon/libc/sys/magenta/sys/types.h

@@ -0,0 +1,32 @@
+#ifndef SYS_LINUX_SYS_TYPES_H_
+#define SYS_LINUX_SYS_TYPES_H_
+
+#include <machine/_stdint.h>
+
+typedef signed long long blkcnt_t;
+typedef signed long long blksize_t;
+typedef unsigned long long clock_t;
+typedef unsigned int clockid_t;
+typedef unsigned long long fsblkcnt_t;
+typedef unsigned long long fsfilcnt_t;
+typedef unsigned int gid_t;
+typedef unsigned int id_t;
+typedef unsigned long long ino_t;
+typedef unsigned int key_t;
+typedef unsigned int mode_t;
+typedef unsigned long long nlink_t;
+typedef signed long long off_t;
+typedef __int64_t off64_t;
+typedef signed int pid_t;
+typedef unsigned long long time_t;
+typedef unsigned int timer_t;
+typedef unsigned int uid_t;
+typedef unsigned long useconds_t;
+typedef unsigned long long dev_t;
+
+#ifndef __SIZE_T_DEFINED
+typedef __uintptr_t size_t;
+#define __SIZE_T_DEFINED
+#endif
+
+#endif

photon/libc/sys/magenta/syscall.c

@@ -0,0 +1,3 @@
+#include "sys/syscall.h"
+#include "__syscall.h"
+

photon/libc/sys/magenta/system.c

@@ -0,0 +1,7 @@
+#include "unistd.h"
+
+_Noreturn void __exit(int code)
+{
+    _exit(code);
+    while (1) {}
+}