OS-Aware Globals

1 files changed, 32 insertions, 0 deletions

diff --git a/sys.inc b/sys.inc
new file mode 100644
index 0000000..eef6573
--- /dev/null
+++ b/sys.inc
@@ -0,0 +1,32 @@
+%ifndef SYS_INC
+%define SYS_INC
+%ifidn __OUTPUT_FORMAT__, macho64
+	%define SYS_EXIT 0x02000001
+	%define SYS_READ 0x02000003
+	%define SYS_WRITE 0x02000004
+	%define SYS_OPEN 0x02000005
+	%define SYS_CLOSE 0x02000006
+	%define SYS_MUNMAP 0x02000049
+	%define SYS_MMAP 0x020000C5
+	%define SYS_LSEEK 0x020000C7
+%elifidn __OUTPUT_FORMAT__, elf64
+	%define SYS_READ 0
+	%define SYS_WRITE 1
+	%define SYS_OPEN 2
+	%define SYS_CLOSE 3
+	%define SYS_LSEEK 8
+	%define SYS_MMAP 9
+	%define SYS_MUNMAP 11
+	%define SYS_EXIT  60
+%endif
+
+%macro exit_prog	0-1 0
+	mov	rax,	SYS_EXIT
+	%if %1 != 0
+	mov	rdi,	%1
+	%else
+	xor	rdi,	rdi
+	%endif
+	syscall
+%endm
+%endif