ref: 4eaac6bfb11cc84259e8b418d4babffdf1c637eb
parent: af25b58d05b0700990057ce3f8c853bd43f2ece0
author: Roberto E. Vargas Caballero <k0ga@shike2.com>
date: Mon Dec 3 04:38:52 EST 2018
[lib/c] Add support for arm32
--- /dev/null
+++ b/lib/c/arch/arm32/Makefile
@@ -1,0 +1,14 @@
+.POSIX:
+PROJECTDIR =../../../..
+include $(PROJECTDIR)/scripts/rules.mk
+
+OBJS = longjmp.o setjmp.o
+DIRS = linux
+
+all: $(OBJS) $(SYS)
+
+$(SYS): FORCE
+ +@cd $@ && $(MAKE)
+
+clean:
+ $(FORALL)
--- /dev/null
+++ b/lib/c/arch/arm32/linux/.gitignore
@@ -1,0 +1,10 @@
+_Exit.s
+_brk.s
+_close.s
+_getpid.s
+_kill.s
+_lseek.s
+_openat.s
+_read.s
+_sys_errlist.c
+_write.s
--- /dev/null
+++ b/lib/c/arch/arm32/linux/Makefile
@@ -1,0 +1,37 @@
+.POSIX:
+PROJECTDIR =../../../../..
+include $(PROJECTDIR)/scripts/rules.mk
+include ../../rules.mk
+
+OBJS = _Exit.o \
+ _close.o \
+ _brk.o \
+ _getpid.o \
+ _kill.o \
+ _lseek.o \
+ _openat.o \
+ _read.o \
+ _write.o \
+ _getheap.o \
+ _cerrno.o \
+ _open.o \
+ _sigaction.o \
+ _tzone.o \
+ getenv.o \
+ raise.o \
+ signal.o \
+ time.o \
+ _sys_errlist.o \
+
+all: syscall
+ $(MAKE) objs
+
+objs: $(OBJS)
+
+syscall: syscall.lst
+ ./gensys.sh syscall.lst
+ touch syscall
+
+clean:
+ rm -f `awk '/[0-9]* _/ {print $$2".s"}' syscall.lst`+ rm -f syscall _sys_errlist.c
--- /dev/null
+++ b/lib/c/arch/arm32/linux/_cerrno.s
@@ -1,0 +1,14 @@
+ .file "_cerrno.s"
+ .globl _cerrno
+
+_cerrno:
+ cmp r0,#0
+ blt 1f
+ bx lr
+
+1:
+ neg r0,r0
+ ldr r1,=errno
+ str r0,[r1]
+ mov r0,#-1
+ bx lr
--- /dev/null
+++ b/lib/c/arch/arm32/linux/_getheap.s
@@ -1,0 +1,6 @@
+ .file "_getheap.s"
+
+ .globl _getheap
+_getheap:
+ mov r0,#0
+ b _brk
--- /dev/null
+++ b/lib/c/arch/arm32/linux/_open.c
@@ -1,0 +1,13 @@
+#include <stddef.h>
+
+#include "../../../syscall.h"
+
+#define AT_FDCWD -100
+
+extern int _openat(int fd, const char *fname, int flags);
+
+int
+_open(const char *fname, int flags)
+{+ return _openat(AT_FDCWD, fname, flags);
+}
--- /dev/null
+++ b/lib/c/arch/arm32/linux/_tzone.c
@@ -1,0 +1,1 @@
+#include "../../posix/_tzone.c"
--- /dev/null
+++ b/lib/c/arch/arm32/linux/gensys.sh
@@ -1,0 +1,19 @@
+#!/bin/sh
+
+sed 's/[ ]*#.*//
+ /^$/d' syscall.lst |
+while read num name
+do
+cat <<EOF > $name.s
+ .file "$name.s"
+
+ .globl $name
+ .arm
+$name:
+ push {r7,lr}+ ldr r7,=$num
+ swi 0
+ pop {r7,lr}+ b _cerrno
+EOF
+done
--- /dev/null
+++ b/lib/c/arch/arm32/linux/getenv.c
@@ -1,0 +1,1 @@
+#include "../../posix/getenv.c"
--- /dev/null
+++ b/lib/c/arch/arm32/linux/raise.c
@@ -1,0 +1,1 @@
+#include "../../posix/raise.c"
--- /dev/null
+++ b/lib/c/arch/arm32/linux/signal.c
@@ -1,0 +1,1 @@
+#include "../../posix/signal.c"
--- /dev/null
+++ b/lib/c/arch/arm32/linux/syscall.lst
@@ -1,0 +1,11 @@
+#number name
+322 _openat
+6 _close
+3 _read
+4 _write
+1 _Exit
+20 _getpid
+37 _kill
+19 _lseek
+45 _brk
+134 _sigaction
--- /dev/null
+++ b/lib/c/arch/arm32/linux/time.c
@@ -1,0 +1,1 @@
+#include "../../posix/time.c"
--- /dev/null
+++ b/lib/c/arch/arm32/longjmp.s
@@ -1,0 +1,11 @@
+ .file "longjmp.s"
+
+ .text
+ .globl longjmp
+longjmp:
+ ldmia r0, {r4-r11, sp, lr}+
+ // If r1 is 0 return 1 instead
+ movs r0, r1
+ moveq r0, #1
+ bx lr
--- /dev/null
+++ b/lib/c/arch/arm32/setjmp.s
@@ -1,0 +1,9 @@
+ .file "setjmp.s"
+
+ .text
+ .globl setjmp
+setjmp:
+ // IHI0042F_aapcs.pdf 5.1.1 callee saved registers
+ stmia r0, {r4-r11, sp, lr}+ mov r0, #0
+ bx lr
--- /dev/null
+++ b/root/include/scc/bits/arm32/arch/limits.h
@@ -1,0 +1,18 @@
+#define CHAR_BIT 8
+#define SCHAR_MAX 0x7F
+#define SCHAR_MIN (-SCHAR_MIN - 1)
+#define CHAR_MAX 0x7F
+#define CHAR_MIN (-CHAR_MAX - 1)
+#define UCHAR_MAX 0xFF
+#define SHRT_MAX 0x7FFF
+#define SHRT_MIN (-SHRT_MAX - 1)
+#define USHRT_MAX 0xFFFF
+#define INT_MAX 0x7FFFFFFF
+#define INT_MIN (-INT_MAX - 1)
+#define UINT_MAX 0xFFFFFFFF
+#define LONG_MAX 0x7FFFFFFF
+#define LONG_MIN (-LONG_MAX - 1)
+#define ULONG_MAX 0xFFFFFFFF
+#define LLONG_MAX 0x7FFFFFFFFFFFFFFF
+#define LLONG_MIN (-LLONG_MAX - 1)
+#define ULLONG_MAX 0xFFFFFFFFFFFFFFFF
--- /dev/null
+++ b/root/include/scc/bits/arm32/arch/setjmp.h
@@ -1,0 +1,1 @@
+typedef unsigned long jmp_buf[10];
--- /dev/null
+++ b/root/include/scc/bits/arm32/arch/stddef.h
@@ -1,0 +1,9 @@
+#ifndef SIZET_
+typedef unsigned int size_t;
+#define SIZET_
+#endif
+
+#ifndef _PTRDIFF_T
+typedef long ptrdiff_t;
+#define _PTRDIFF_T
+#endif
--- /dev/null
+++ b/root/include/scc/bits/arm32/arch/stdint.h
@@ -1,0 +1,96 @@
+#define INT8_MAX 0x7F
+#define INT8_MIN (-INT8_MAX - 1)
+#define UINT8_MAX 0xFF
+
+#define INT16_MAX 0x7FFF
+#define INT16_MIN (-INT16_MAX - 1)
+#define UINT16_MAX 0xFFFF
+
+#define INT32_MAX 0x7FFFFFFF
+#define INT32_MIN (-INT32_MAX - 1)
+#define UINT32_MAX 0xFFFFFFFF
+
+#define INT64_MAX 0x7FFFFFFFFFFFFFFF
+#define INT64_MIN (-INT64_MAX - 1)
+#define UINT64_MAX 0xFFFFFFFFFFFFFFFF
+
+#define INT_LEAST8_MIN INT8_MIN
+#define INT_LEAST8_MAX INT8_MAX
+#define UINT_LEAST8_MAX UINT8_MAX
+
+#define INT_LEAST16_MIN INT16_MIN
+#define INT_LEAST16_MAX INT16_MAX
+#define UINT_LEAST16_MAX UINT16_MAX
+
+#define INT_LEAST32_MIN INT32_MIN
+#define INT_LEAST32_MAX INT32_MAX
+#define UINT_LEAST32_MAX UINT32_MAX
+
+#define INT_LEAST64_MIN INT64_MIN
+#define INT_LEAST64_MAX INT64_MAX
+#define UINT_LEAST64_MAX UINT64_MAX
+
+#define INT_FAST8_MIN INT32_MIN
+#define INT_FAST8_MAX INT32_MAX
+#define UINT_FAST8_MAX UINT32_MAX
+
+#define INT_FAST16_MIN INT32_MIN
+#define INT_FAST16_MAX INT32_MAX
+#define UINT_FAST16_MAX UINT32_MAX
+
+#define INT_FAST32_MIN INT32_MIN
+#define INT_FAST32_MAX INT32_MAX
+#define UINT_FAST32_MAX UINT32_MAX
+
+#define INT_FAST64_MIN INT64_MIN
+#define INT_FAST64_MAX INT64_MAX
+#define UINT_FAST64_MAX UINT64_MAX
+
+#define INTPTR_MIN INT32_MIN
+#define INTPTR_MAX INT32_MAX
+#define UINTPTR_MAX UINT32_MAX
+
+#define INTMAX_MIN INT64_MIN
+#define INTMAX_MAX INT64_MAX
+#define UINTMAX_MAX UINT64_MAX
+
+#define PTRDIFF_MIN INT32_MIN
+#define PTRDIFF_MAX INT32_MAX
+
+#define SIZE_MAX UINT32_MAX
+
+typedef signed char int8_t;
+typedef short int16_t;
+typedef int int32_t;
+typedef long long int64_t;
+
+typedef unsigned char uint8_t;
+typedef unsigned short uint16_t;
+typedef unsigned int uint32_t;
+typedef unsigned long long uint64_t;
+
+typedef signed char int8_least_t;
+typedef short int16_least_t;
+typedef int int32_least_t;
+typedef long long int64_least_t;
+
+typedef unsigned char uint8_least_t;
+typedef unsigned short uint16_least_t;
+typedef unsigned int uint32_least_t;
+typedef unsigned long long uint64_least_t;
+
+typedef int int8_fast_t;
+typedef int int16_fast_t;
+typedef int int32_fast_t;
+typedef long long int64_fast_t;
+
+typedef unsigned int uint8_fast_t;
+typedef unsigned int uint16_fast_t;
+typedef unsigned int uint32_fast_t;
+typedef unsigned long long uint64_fast_t;
+
+typedef long intptr_t;
+typedef unsigned long uintptr_t;
+
+typedef long long intmax_t;
+typedef unsigned long long uintmax_t;
--- /dev/null
+++ b/root/include/scc/bits/arm32/arch/stdio.h
@@ -1,0 +1,15 @@
+#ifndef _SIZET
+typedef unsigned int size_t;
+#define _SIZET
+#endif
+
+#define BUFSIZ 512
+#define FILENAME_MAX 256
+#define FOPEN_MAX 16
+
+#define TMP_MAX 25
+#define L_tmpnam 256
+
+#define _TMPNAME "/tmp/tmp.0000000"
+
+typedef int fpos_t;
--- /dev/null
+++ b/root/include/scc/bits/arm32/arch/stdlib.h
@@ -1,0 +1,14 @@
+#ifndef SIZET_
+typedef unsigned int size_t;
+#define SIZET_
+#endif
+
+#define EXIT_FAILURE 1
+#define EXIT_SUCCESS 0
+
+#ifndef _WCHAR_T
+typedef int wchar_t; // TODO
+#define _WCHAR_T
+#endif
+
+#define _ALIGNTYPE long double
--- /dev/null
+++ b/root/include/scc/bits/arm32/arch/string.h
@@ -1,0 +1,6 @@
+#ifndef SIZET_
+typedef unsigned int size_t;
+#define SIZET_
+#endif
+
+#define __NUMCHARS 128
--- /dev/null
+++ b/root/include/scc/bits/arm32/arch/time.h
@@ -1,0 +1,8 @@
+#ifndef _SIZET
+typedef unsigned int size_t;
+#define _SIZET
+#endif
+
+#define _MAXYEAR 9999
+
+typedef long int time_t;