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|
{
This file is part of the Free Pascal run time library.
Copyright (c) 2003 by Florian Klaempfl,
member of the Free Pascal development team.
See the file COPYING.FPC, included in this distribution,
for details about the copyright.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
**********************************************************************}
{No debugging for syslinux include !}
{$IFDEF SYS_LINUX}
{$UNDEF SYSCALL_DEBUG}
{$ENDIF SYS_LINUX}
{*****************************************************************************
--- Main:The System Call Self ---
*****************************************************************************}
{$ifdef FPC_ABI_EABI}
{$ifdef CPUTHUMB}
function FpSysCall(sysnr:TSysParam):TSysResult; assembler; nostackframe; [public,alias:'FPC_SYSCALL0'];
{
Perform syscall and set errno variable if needed.
}
asm
push {r7}
mov r7,r0
// svc #0x0
// GNU 2.22 does not like svc #0x0
.byte 0,0xdf
mov r1,#126
cmn r0,r1
pop {r7}
bhi .Lnoexit
mov pc,lr
.Lnoexit:
push {lr}
neg r0,r0
bl seterrno
mov r0,#0
mvn r0,r0
pop {pc}
end;
function FpSysCall(sysnr,param1:TSysParam):TSysResult; assembler; nostackframe; [public,alias:'FPC_SYSCALL1'];
{
Perform syscall and set errno variable if needed.
}
asm
push {r7}
mov r7,r0
mov r0,r1
// svc #0x0
// GNU 2.22 does not like svc #0x0
.byte 0,0xdf
mov r1,#126
cmn r0,r1
pop {r7}
bhi .Lnoexit
mov pc,lr
.Lnoexit:
push {lr}
neg r0,r0
bl seterrno
mov r0,#0
mvn r0,r0
pop {pc}
end;
function FpSysCall(sysnr,param1,param2:TSysParam):TSysResult; assembler; nostackframe; [public,alias:'FPC_SYSCALL2'];
{
Perform syscall and set errno variable if needed.
}
asm
push {r7}
mov r7,r0
mov r0,r1
mov r1,r2
// svc #0x0
// GNU 2.22 does not like svc #0x0
.byte 0,0xdf
mov r1,#126
cmn r0,r1
pop {r7}
bhi .Lnoexit
mov pc,lr
.Lnoexit:
push {lr}
neg r0,r0
bl seterrno
mov r0,#0
mvn r0,r0
pop {pc}
end;
function FpSysCall(sysnr,param1,param2,param3:TSysParam):TSysResult; assembler; nostackframe; [public,alias:'FPC_SYSCALL3'];
{
Perform syscall and set errno variable if needed.
}
asm
push {r7}
mov r7,r0
mov r0,r1
mov r1,r2
mov r2,r3
// svc #0x0
// GNU 2.22 does not like svc #0x0
.byte 0,0xdf
mov r1,#126
cmn r0,r1
pop {r7}
bhi .Lnoexit
mov pc,lr
.Lnoexit:
push {lr}
neg r0,r0
bl seterrno
mov r0,#0
mvn r0,r0
pop {pc}
end;
function FpSysCall(sysnr,param1,param2,param3,param4:TSysParam):TSysResult; assembler; nostackframe; [public,alias:'FPC_SYSCALL4'];
{
Perform syscall and set errno variable if needed.
}
asm
push {r7}
push {r0}
mov r0,r1
mov r1,r2
mov r2,r3
ldr r3,[r13 ,#8]
pop {r7}
// svc #0x0
// GNU 2.22 does not like svc #0x0
.byte 0,0xdf
mov r1,#126
cmn r0,r1
pop {r7}
bls .LExit
push {lr}
neg r0,r0
bl seterrno
mov r0,#0
mvn r0,r0
pop {pc}
.LExit:
mov pc,lr
end;
function FpSysCall(sysnr,param1,param2,param3,param4,param5:TSysParam):TSysResult; assembler; nostackframe; [public,alias:'FPC_SYSCALL5'];
{
Perform syscall and set errno variable if needed.
}
asm
push {r4,r7}
push {r0}
mov r0,r1
mov r1,r2
mov r2,r3
ldr r3,[r13 ,#12]
ldr r4,[r13 ,#16]
pop {r7}
// svc #0x0
// GNU 2.22 does not like svc #0x0
.byte 0,0xdf
mov r1,#126
cmn r0,r1
pop {r4,r7}
bls .LExit
push {lr}
neg r0,r0
bl seterrno
mov r0,#0
mvn r0,r0
pop {pc}
.LExit:
mov pc,lr
end;
function FpSysCall(sysnr,param1,param2,param3,param4,param5,param6:TSysParam):TSysResult; assembler; nostackframe; [public,alias:'FPC_SYSCALL6'];
{
Perform syscall and set errno variable if needed.
}
asm
push {r4,r5,r7}
push {r0}
mov r0,r1
mov r1,r2
mov r2,r3
ldr r3,[r13 ,#16]
ldr r4,[r13 ,#20]
ldr r5,[r13 ,#24]
pop {r7}
// svc #0x0
// GNU 2.22 does not like svc #0x0
.byte 0,0xdf
mov r1,#126
cmn r0,r1
pop {r4,r5,r7}
bls .LExit
push {lr}
neg r0,r0
bl seterrno
mov r0,#0
mvn r0,r0
pop {pc}
.LExit:
mov pc,lr
end;
{$else CPUTHUMB}
function FpSysCall(sysnr:TSysParam):TSysResult; assembler; nostackframe; [public,alias:'FPC_SYSCALL0'];
{
Perform syscall and set errno variable if needed.
}
asm
str r7,[sp,#-4]!
mov r7,r0
swi #0x0
cmn r0,#126
ldr r7,[sp],#4
it ls
movls pc,lr
stmfd sp!,{lr}
rsb r0,r0,#0
bl seterrno
mvn r0,#0
ldmfd sp!,{pc}
end;
function FpSysCall(sysnr,param1:TSysParam):TSysResult; assembler; nostackframe; [public,alias:'FPC_SYSCALL1'];
{
Perform syscall and set errno variable if needed.
}
asm
str r7,[sp,#-4]!
mov r7,r0
mov r0,r1
swi #0x0
cmn r0,#126
ldr r7,[sp],#4
it ls
movls pc,lr
stmfd sp!,{lr}
rsb r0,r0,#0
bl seterrno
mvn r0,#0
ldmfd sp!,{pc}
end;
function FpSysCall(sysnr,param1,param2:TSysParam):TSysResult; assembler; nostackframe; [public,alias:'FPC_SYSCALL2'];
{
Perform syscall and set errno variable if needed.
}
asm
str r7,[sp,#-4]!
mov r7,r0
mov r0,r1
mov r1,r2
swi #0x0
cmn r0,#126
ldr r7,[sp],#4
it ls
movls pc,lr
stmfd sp!,{lr}
rsb r0,r0,#0
bl seterrno
mvn r0,#0
ldmfd sp!,{pc}
end;
function FpSysCall(sysnr,param1,param2,param3:TSysParam):TSysResult; assembler; nostackframe; [public,alias:'FPC_SYSCALL3'];
{
Perform syscall and set errno variable if needed.
}
asm
str r7,[sp,#-4]!
mov r7,r0
mov r0,r1
mov r1,r2
mov r2,r3
swi #0x0
cmn r0,#126
ldr r7,[sp],#4
it ls
movls pc,lr
stmfd sp!,{lr}
rsb r0,r0,#0
bl seterrno
mvn r0,#0
ldmfd sp!,{pc}
end;
function FpSysCall(sysnr,param1,param2,param3,param4:TSysParam):TSysResult; assembler; [public,alias:'FPC_SYSCALL4'];
{
Perform syscall and set errno variable if needed.
}
asm
str r7,[sp,#-4]!
mov r7,r0
mov r0,r1
mov r1,r2
mov r2,r3
ldr r3,param4
swi #0x0
cmn r0,#126
ldr r7,[sp],#4
bls .LExit
rsb r0,r0,#0
bl seterrno
mvn r0,#0
.LExit:
end;
function FpSysCall(sysnr,param1,param2,param3,param4,param5:TSysParam):TSysResult; assembler;[public,alias:'FPC_SYSCALL5'];
{
Perform syscall and set errno variable if needed.
}
asm
stmfd sp!,{r4,r7}
mov r7,r0
mov r0,r1
mov r1,r2
mov r2,r3
ldr r3,param4
ldr r4,param5
swi #0x0
cmn r0,#126
ldmfd sp!,{r4,r7}
bls .LExit
rsb r0,r0,#0
bl seterrno
mvn r0,#0
.LExit:
end;
function FpSysCall(sysnr,param1,param2,param3,param4,param5,param6:TSysParam):TSysResult; assembler;[public,alias:'FPC_SYSCALL6'];
{
Perform syscall and set errno variable if needed.
}
asm
stmfd sp!,{r4,r5,r7}
mov r7,r0
mov r0,r1
mov r1,r2
mov r2,r3
ldr r3,param4
ldr r4,param5
ldr r5,param6
swi #0x0
cmn r0,#126
ldmfd sp!,{r4,r5,r7}
bls .LExit
rsb r0,r0,#0
bl seterrno
mvn r0,#0
.LExit:
end;
{$endif CPUTHUMB}
{$else FPC_ABI_EABI}
function FpSysCall(sysnr:TSysParam):TSysResult; assembler; nostackframe; [public,alias:'FPC_SYSCALL0'];
{
Perform syscall and set errno variable if needed.
}
asm
swi #0x900071
cmn r0,#126
movls pc,lr
stmfd sp!,{lr}
rsb r0,r0,#0
bl seterrno
mvn r0,#0
ldmfd sp!,{pc}
end;
procedure FPC_SYSCALL; external name 'FPC_SYSCALL0';
function FpSysCall(sysnr,param1:TSysParam):TSysResult; assembler; nostackframe; [public,alias:'FPC_SYSCALL1'];
{
Jump to FPC_SYSCALL0 because code for FPC_SYSCALL0-FPC_SYSCALL3 is the same.
}
asm
b FPC_SYSCALL
end;
function FpSysCall(sysnr,param1,param2:TSysParam):TSysResult; assembler; nostackframe; [public,alias:'FPC_SYSCALL2'];
{
Jump to FPC_SYSCALL0 because code for FPC_SYSCALL0-FPC_SYSCALL3 is the same.
}
asm
b FPC_SYSCALL
end;
function FpSysCall(sysnr,param1,param2,param3:TSysParam):TSysResult; assembler; nostackframe; [public,alias:'FPC_SYSCALL3'];
{
Jump to FPC_SYSCALL0 because code for FPC_SYSCALL0-FPC_SYSCALL3 is the same.
}
asm
b FPC_SYSCALL
end;
function FpSysCall(sysnr,param1,param2,param3,param4:TSysParam):TSysResult; assembler; [public,alias:'FPC_SYSCALL4'];
{
This function loads some parameters from stack and calls FPC_SYSCALL0.
}
asm
stmfd sp!,{r4}
ldr r4,param4
bl FPC_SYSCALL
ldmfd sp!,{r4}
end;
function FpSysCall(sysnr,param1,param2,param3,param4,param5:TSysParam):TSysResult; assembler;[public,alias:'FPC_SYSCALL5'];
{
This function loads some parameters from stack and calls FPC_SYSCALL0.
}
asm
stmfd sp!,{r4,r5}
ldr r4,param4
ldr r5,param5
bl FPC_SYSCALL
ldmfd sp!,{r4,r5}
end;
function FpSysCall(sysnr,param1,param2,param3,param4,param5,param6:TSysParam):TSysResult; assembler;[public,alias:'FPC_SYSCALL6'];
{
This function loads some parameters from stack and calls FPC_SYSCALL0.
}
asm
stmfd sp!,{r4,r5,r6}
ldr r4,param4
ldr r5,param5
ldr r6,param6
bl FPC_SYSCALL
ldmfd sp!,{r4,r5,r6}
end;
{$endif FPC_ABI_EABI}
|
