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hw_x86_64: Implement syscall with one to six arguments

This commit is contained in:
Adrian-Ken Rueegsegger 2015-02-20 10:36:50 +01:00 committed by Christian Helmuth
parent 04ad1340d5
commit 1d762ca254
1 changed files with 25 additions and 18 deletions
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43
repos/base-hw/src/base/x86_64/kernel/interface.cc
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@ -49,6 +49,13 @@ using namespace Kernel;
CALL_5_FILL_ARG_REGS \
register Call_arg arg_5_reg asm("r9") = arg_5;
#define CALL_1_SYSCALL "int $0x80\n" : "+r" (arg_0_reg)
#define CALL_2_SYSCALL CALL_1_SYSCALL: "r" (arg_1_reg)
#define CALL_3_SYSCALL CALL_2_SYSCALL, "r" (arg_2_reg)
#define CALL_4_SYSCALL CALL_3_SYSCALL, "r" (arg_3_reg)
#define CALL_5_SYSCALL CALL_4_SYSCALL, "r" (arg_4_reg)
#define CALL_6_SYSCALL CALL_5_SYSCALL, "r" (arg_5_reg)
/******************
** Kernel calls **
@ -56,18 +63,18 @@ using namespace Kernel;
Call_ret Kernel::call(Call_arg arg_0)
{
PDBG("syscall binding not implemented");
for (;;);
return 0;
CALL_1_FILL_ARG_REGS
asm volatile(CALL_1_SYSCALL);
return arg_0_reg;
}
Call_ret Kernel::call(Call_arg arg_0,
Call_arg arg_1)
{
PDBG("syscall binding not implemented");
for (;;);
return 0;
CALL_2_FILL_ARG_REGS
asm volatile(CALL_2_SYSCALL);
return arg_0_reg;
}
@ -75,9 +82,9 @@ Call_ret Kernel::call(Call_arg arg_0,
Call_arg arg_1,
Call_arg arg_2)
{
PDBG("syscall binding not implemented");
for (;;);
return 0;
CALL_3_FILL_ARG_REGS
asm volatile(CALL_3_SYSCALL);
return arg_0_reg;
}
@ -86,9 +93,9 @@ Call_ret Kernel::call(Call_arg arg_0,
Call_arg arg_2,
Call_arg arg_3)
{
PDBG("syscall binding not implemented");
for (;;);
return 0;
CALL_4_FILL_ARG_REGS
asm volatile(CALL_4_SYSCALL);
return arg_0_reg;
}
@ -98,9 +105,9 @@ Call_ret Kernel::call(Call_arg arg_0,
Call_arg arg_3,
Call_arg arg_4)
{
PDBG("syscall binding not implemented");
for (;;);
return 0;
CALL_5_FILL_ARG_REGS
asm volatile(CALL_5_SYSCALL);
return arg_0_reg;
}
@ -111,7 +118,7 @@ Call_ret Kernel::call(Call_arg arg_0,
Call_arg arg_4,
Call_arg arg_5)
{
PDBG("syscall binding not implemented");
for (;;);
return 0;
CALL_6_FILL_ARG_REGS
asm volatile(CALL_6_SYSCALL);
return arg_0_reg;
}