scc

commit e8e9a686078131d6daf0168af15352c2c6a9f219
parent cc91dc2eb3036c06b19a4388b44302b84fc94787
Author: zerous Naveen Narayanan <zerous@nocebo.space>
Date:   Sat, 16 Nov 2019 13:43:50 +0100

Add _cerrno.s, _getheap.c, raise.c & signal.c for i386/linux

Diffstat:
M
src/libc/arch/i386/linux/Makefile
 | 
10
+++++++++-
A
src/libc/arch/i386/linux/_cerrno.s
 | 
12
++++++++++++
A
src/libc/arch/i386/linux/_getheap.c
 | 
1
+
M
src/libc/arch/i386/linux/gensys.sh
 | 
4
++--
A
src/libc/arch/i386/linux/raise.c
 | 
1
+
A
src/libc/arch/i386/linux/signal.c
 | 
1
+

6 files changed, 26 insertions(+), 3 deletions(-)
diff --git a/src/libc/arch/i386/linux/Makefile b/src/libc/arch/i386/linux/Makefile
@@ -15,8 +15,12 @@ OBJS 	=\
 	_getpid.o\
 	_Exit.o\
 	_kill.o\
+	_getheap.o\
 	crt.o\
 	signal.o\
+	raise.o\
+	_cerrno.o\
+	signal.o
 
 all: syscall
 	$(MAKE) objs
@@ -25,10 +29,14 @@ objs: $(OBJS)
 
 crt.o:	../crt-posix.s
 
+raise.o:	../../posix/raise.c
+
+signal.o:	../../posix/signal.c
+
 syscall: syscall.lst
 	gensys.sh syscall.lst
 	touch syscall
 
 clean:
-	rm -f `awk '/[0-9]*	_/ {print $$2".s"}' syscall.lst`
+	rm -f `awk '/[0-9]*\t/{print $$2".s"}' syscall.lst`
 	rm -f syscall _sys_errlist.c
diff --git a/src/libc/arch/i386/linux/_cerrno.s b/src/libc/arch/i386/linux/_cerrno.s
@@ -0,0 +1,12 @@
+	.file	"_cerrno.s"
+	.globl	_cerrno
+
+_cerrno:
+	cmpl	$0,%eax
+	js	1f
+	ret
+
+1:	neg	%eax
+	mov	%eax,(errno)
+	mov	$-1,%eax
+	ret
diff --git a/src/libc/arch/i386/linux/_getheap.c b/src/libc/arch/i386/linux/_getheap.c
@@ -0,0 +1 @@
+#include "../../posix/_getheap.c"
diff --git a/src/libc/arch/i386/linux/gensys.sh b/src/libc/arch/i386/linux/gensys.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 
-awk '
-NR > 1	{syscall=$2
+awk '/^[0-9]*\t/ {
+	syscall=$2
 	fname=$2".s"
 	noper=$3
 
diff --git a/src/libc/arch/i386/linux/raise.c b/src/libc/arch/i386/linux/raise.c
@@ -0,0 +1 @@
+#include "../../posix/raise.c"
diff --git a/src/libc/arch/i386/linux/signal.c b/src/libc/arch/i386/linux/signal.c
@@ -0,0 +1 @@
+#include "../../posix/signal.c"