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ARM: Add fake asm for syscall.c.

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* lib/linux/arm-mes-gcc/syscall.c (__sys_call, __sys_call1, __sys_call2,
__sys_call3, __sys_call4) [__TINYC__]: Add fake asm.
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Jan (janneke) Nieuwenhuizen 2020-11-22 22:20:22 +01:00
parent 40f270f3d7
commit e5573ec23c
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GPG key ID: F3C1A0D9C1D65273
1 changed files with 128 additions and 1 deletions
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129
lib/linux/arm-mes-gcc/syscall.c
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@ -1,6 +1,6 @@
/* -*-comment-start: "//";comment-end:""-*- /* -*-comment-start: "//";comment-end:""-*-
* GNU Mes --- Maxwell Equations of Software * GNU Mes --- Maxwell Equations of Software
* Copyright © 2016,2017,2018,2019 Jan (janneke) Nieuwenhuizen <janneke@gnu.org> * Copyright © 2016,2017,2018,2019,2020 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
* *
* This file is part of GNU Mes. * This file is part of GNU Mes.
* *
@ -21,6 +21,7 @@
#include <errno.h> #include <errno.h>
#include <linux/x86/syscall.h> #include <linux/x86/syscall.h>
#if !__TINYC__
// *INDENT-OFF* // *INDENT-OFF*
long long
__sys_call (long sys_call) __sys_call (long sys_call)
@ -36,7 +37,27 @@ __sys_call (long sys_call)
); );
return r; return r;
} }
#else //__TINYC__
long __sys_call (long sys_call);
__asm__ (".global __sys_call\n");
__asm__ ("__sys_call:\n");
__asm__ (".int 0xe92d0880\n"); //push {r7, fp}
__asm__ (".int 0xe28db004\n"); //add fp, sp, #4
__asm__ (".int 0xe24dd010\n"); //sub sp, sp, #16
__asm__ (".int 0xe50b0010\n"); //str r0, [fp, #-16]
__asm__ (".int 0xe51b3010\n"); //ldr r3, [fp, #-16]
__asm__ (".int 0xe1a07003\n"); //mov r7, r3
__asm__ (".int 0xef000000\n"); //svc 0x00000000
__asm__ (".int 0xe1a03000\n"); //mov r3, r0
__asm__ (".int 0xe50b3008\n"); //str r3, [fp, #-8]
__asm__ (".int 0xe51b3008\n"); //ldr r3, [fp, #-8]
__asm__ (".int 0xe1a00003\n"); //mov r0, r3
__asm__ (".int 0xe24bd004\n"); //sub sp, fp, #4
__asm__ (".int 0xe8bd0880\n"); //pop {r7, fp}
__asm__ (".int 0xe12fff1e\n"); //bx lr
#endif //__TINYC__
#if !__TINYC__
long long
__sys_call1 (long sys_call, long one) __sys_call1 (long sys_call, long one)
{ {
@ -52,7 +73,30 @@ __sys_call1 (long sys_call, long one)
); );
return r; return r;
} }
#else //__TINYC__
long __sys_call1 (long sys_call, long one);
__asm__ (".global __sys_call1\n");
__asm__ ("__sys_call1:\n");
__asm__ (".int 0xe92d0880\n"); //push {r7, fp}
__asm__ (".int 0xe28db004\n"); //add fp, sp, #4
__asm__ (".int 0xe24dd010\n"); //sub sp, sp, #16
__asm__ (".int 0xe50b0010\n"); //str r0, [fp, #-16]
__asm__ (".int 0xe50b1014\n"); //str r1, [fp, #-20] ; 0xffffffec
__asm__ (".int 0xe51b3010\n"); //ldr r3, [fp, #-16]
__asm__ (".int 0xe51b2014\n"); //ldr r2, [fp, #-20] ; 0xffffffec
__asm__ (".int 0xe1a07003\n"); //mov r7, r3
__asm__ (".int 0xe1a00002\n"); //mov r0, r2
__asm__ (".int 0xef000000\n"); //svc 0x00000000
__asm__ (".int 0xe1a03000\n"); //mov r3, r0
__asm__ (".int 0xe50b3008\n"); //str r3, [fp, #-8]
__asm__ (".int 0xe51b3008\n"); //ldr r3, [fp, #-8]
__asm__ (".int 0xe1a00003\n"); //mov r0, r3
__asm__ (".int 0xe24bd004\n"); //sub sp, fp, #4
__asm__ (".int 0xe8bd0880\n"); //pop {r7, fp}
__asm__ (".int 0xe12fff1e\n"); //bx lr
#endif //__TINYC__
#if !__TINYC__
long long
__sys_call2 (long sys_call, long one, long two) __sys_call2 (long sys_call, long one, long two)
{ {
@ -69,7 +113,33 @@ __sys_call2 (long sys_call, long one, long two)
); );
return r; return r;
} }
#else //__TINYC__
long __sys_call2 (long sys_call, long one, long two);
__asm__ (".global __sys_call2\n");
__asm__ ("__sys_call2:\n");
__asm__ (".int 0xe92d0880\n"); //push {r7, fp}
__asm__ (".int 0xe28db004\n"); //add fp, sp, #4
__asm__ (".int 0xe24dd018\n"); //sub sp, sp, #24
__asm__ (".int 0xe50b0010\n"); //str r0, [fp, #-16]
__asm__ (".int 0xe50b1014\n"); //str r1, [fp, #-20] ; 0xffffffec
__asm__ (".int 0xe50b2018\n"); //str r2, [fp, #-24] ; 0xffffffe8
__asm__ (".int 0xe51b3010\n"); //ldr r3, [fp, #-16]
__asm__ (".int 0xe51b2014\n"); //ldr r2, [fp, #-20] ; 0xffffffec
__asm__ (".int 0xe51bc018\n"); //ldr ip, [fp, #-24] ; 0xffffffe8
__asm__ (".int 0xe1a07003\n"); //mov r7, r3
__asm__ (".int 0xe1a00002\n"); //mov r0, r2
__asm__ (".int 0xe1a0100c\n"); //mov r1, ip
__asm__ (".int 0xef000000\n"); //svc 0x00000000
__asm__ (".int 0xe1a03000\n"); //mov r3, r0
__asm__ (".int 0xe50b3008\n"); //str r3, [fp, #-8]
__asm__ (".int 0xe51b3008\n"); //ldr r3, [fp, #-8]
__asm__ (".int 0xe1a00003\n"); //mov r0, r3
__asm__ (".int 0xe24bd004\n"); //sub sp, fp, #4
__asm__ (".int 0xe8bd0880\n"); //pop {r7, fp}
__asm__ (".int 0xe12fff1e\n"); //bx lr
#endif //__TINYC__
#if !__TINYC__
long long
__sys_call3 (long sys_call, long one, long two, long three) __sys_call3 (long sys_call, long one, long two, long three)
{ {
@ -87,7 +157,35 @@ __sys_call3 (long sys_call, long one, long two, long three)
); );
return r; return r;
} }
#else //__TINYC__
long __sys_call3 (long sys_call, long one, long two, long three);
__asm__ (".global __sys_call3\n");
__asm__ ("__sys_call3:\n");
__asm__ (".int 0xe92d4890\n"); //push {r4, r7, fp, lr}
__asm__ (".int 0xe28db00c\n"); //add fp, sp, #12
__asm__ (".int 0xe24dd018\n"); //sub sp, sp, #24
__asm__ (".int 0xe50b0018\n"); //str r0, [fp, #-24] ; 0xffffffe8
__asm__ (".int 0xe50b101c\n"); //str r1, [fp, #-28] ; 0xffffffe4
__asm__ (".int 0xe50b2020\n"); //str r2, [fp, #-32] ; 0xffffffe0
__asm__ (".int 0xe50b3024\n"); //str r3, [fp, #-36] ; 0xffffffdc
__asm__ (".int 0xe51b3018\n"); //ldr r3, [fp, #-24] ; 0xffffffe8
__asm__ (".int 0xe51bc01c\n"); //ldr ip, [fp, #-28] ; 0xffffffe4
__asm__ (".int 0xe51be020\n"); //ldr lr, [fp, #-32] ; 0xffffffe0
__asm__ (".int 0xe51b4024\n"); //ldr r4, [fp, #-36] ; 0xffffffdc
__asm__ (".int 0xe1a07003\n"); //mov r7, r3
__asm__ (".int 0xe1a0000c\n"); //mov r0, ip
__asm__ (".int 0xe1a0100e\n"); //mov r1, lr
__asm__ (".int 0xe1a02004\n"); //mov r2, r4
__asm__ (".int 0xef000000\n"); //svc 0x00000000
__asm__ (".int 0xe1a03000\n"); //mov r3, r0
__asm__ (".int 0xe50b3010\n"); //str r3, [fp, #-16]
__asm__ (".int 0xe51b3010\n"); //ldr r3, [fp, #-16]
__asm__ (".int 0xe1a00003\n"); //mov r0, r3
__asm__ (".int 0xe24bd00c\n"); //sub sp, fp, #12
__asm__ (".int 0xe8bd8890\n"); //pop {r4, r7, fp, pc}
#endif //__TINYC__
#if !__TINYC__
long long
__sys_call4 (long sys_call, long one, long two, long three, long four) __sys_call4 (long sys_call, long one, long two, long three, long four)
{ {
@ -106,6 +204,35 @@ __sys_call4 (long sys_call, long one, long two, long three, long four)
); );
return r; return r;
} }
#else //__TINYC__
long __sys_call4 (long sys_call, long one, long two, long three, long four);
__asm__ (".global __sys_call4\n");
__asm__ ("__sys_call4:\n");
__asm__ (".int 0xe92d48f0\n"); //push {r4, r5, r6, r7, fp, lr}
__asm__ (".int 0xe28db014\n"); //add fp, sp, #20
__asm__ (".int 0xe24dd018\n"); //sub sp, sp, #24
__asm__ (".int 0xe50b0020\n"); //str r0, [fp, #-32] ; 0xffffffe0
__asm__ (".int 0xe50b1024\n"); //str r1, [fp, #-36] ; 0xffffffdc
__asm__ (".int 0xe50b2028\n"); //str r2, [fp, #-40] ; 0xffffffd8
__asm__ (".int 0xe50b302c\n"); //str r3, [fp, #-44] ; 0xffffffd4
__asm__ (".int 0xe51bc020\n"); //ldr ip, [fp, #-32] ; 0xffffffe0
__asm__ (".int 0xe51be024\n"); //ldr lr, [fp, #-36] ; 0xffffffdc
__asm__ (".int 0xe51b4028\n"); //ldr r4, [fp, #-40] ; 0xffffffd8
__asm__ (".int 0xe51b502c\n"); //ldr r5, [fp, #-44] ; 0xffffffd4
__asm__ (".int 0xe59b6004\n"); //ldr r6, [fp, #4]
__asm__ (".int 0xe1a0700c\n"); //mov r7, ip
__asm__ (".int 0xe1a0000e\n"); //mov r0, lr
__asm__ (".int 0xe1a01004\n"); //mov r1, r4
__asm__ (".int 0xe1a02005\n"); //mov r2, r5
__asm__ (".int 0xe1a03006\n"); //mov r3, r6
__asm__ (".int 0xef000000\n"); //svc 0x00000000
__asm__ (".int 0xe1a0c000\n"); //mov ip, r0
__asm__ (".int 0xe50bc018\n"); //str ip, [fp, #-24] ; 0xffffffe8
__asm__ (".int 0xe51b3018\n"); //ldr r3, [fp, #-24] ; 0xffffffe8
__asm__ (".int 0xe1a00003\n"); //mov r0, r3
__asm__ (".int 0xe24bd014\n"); //sub sp, fp, #20
__asm__ (".int 0xe8bd88f0\n"); //pop {r4, r5, r6, r7, fp, pc}
#endif //__TINYC__
#if 0 #if 0
long long