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more syscall fixes

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arch/mips/isa_traits.hh:
    use syscall return function from alpha
arch/mips/linux_process.cc:
    fix some syntax errors,  map some functions to the desc. table

--HG--
extra : convert_revision : 75e8e8893b7d96bb4fc8e8eced53bd16c0a727d1
This commit is contained in:
Korey Sewell 2006-03-18 11:31:31 -05:00
parent 3883406a1c
commit e6bc492554
2 changed files with 21 additions and 9 deletions
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15
arch/mips/isa_traits.hh
View file

@ -589,7 +589,20 @@ extern const Addr PageOffset;
static inline void setSyscallReturn(SyscallReturn return_value, RegFile *regs)
{
regs->intRegFile[ReturnValueReg1] = 1;
// check for error condition. Alpha syscall convention is to
// indicate success/failure in reg a3 (r19) and put the
// return value itself in the standard return value reg (v0).
if (return_value.successful()) {
// no error
regs->intRegFile[ReturnValueReg1] = 0;
regs->intRegFile[ReturnValueReg2] = return_value.value();
} else {
// got an error, return details
regs->intRegFile[ReturnValueReg1] = (IntReg) -1;
regs->intRegFile[ReturnValueReg2] = -return_value.value();
}
//regs->intRegFile[ReturnValueReg1] = (IntReg)return_value;
//panic("Returning from syscall\n");
}

15
arch/mips/linux_process.cc
View file

@ -26,7 +26,6 @@
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "arch/mips/common_syscall_emul.hh"
#include "arch/mips/linux_process.hh"
#include "arch/mips/isa_traits.hh"
@ -162,11 +161,11 @@ SyscallDesc MipsLinuxProcess::syscallDescs[] = {
/* 43 */ SyscallDesc("times", unimplementedFunc),
/* 44 */ SyscallDesc("prof", unimplementedFunc),
/* 45 */ SyscallDesc("brk", unimplementedFunc),/*openFunc<Linux>*/
/* 46 */ SyscallDesc("setgid", setgidFunc),
/* 46 */ SyscallDesc("setgid", unimplementedFunc),
/* 47 */ SyscallDesc("getgid", getgidFunc),
/* 48 */ SyscallDesc("signal", ignoreFunc),
/* 49 */ SyscallDesc("geteuid", unimplementedFunc),
/* 50 */ SyscallDesc("getegid", unimplementedFunc),
/* 49 */ SyscallDesc("geteuid", geteuidFunc),
/* 50 */ SyscallDesc("getegid", getegidFunc),
/* 51 */ SyscallDesc("acct", unimplementedFunc),
/* 52 */ SyscallDesc("umount2", unimplementedFunc),
/* 53 */ SyscallDesc("lock", unimplementedFunc),
@ -207,7 +206,7 @@ SyscallDesc MipsLinuxProcess::syscallDescs[] = {
/* 88 */ SyscallDesc("reboot", unimplementedFunc),
/* 89 */ SyscallDesc("readdir", unimplementedFunc),
/* 90 */ SyscallDesc("mmap", mmapFunc<Linux>),
/* 91 */ SyscallDesc("munmap", ),/*fstatFunc<Linux>*/
/* 91 */ SyscallDesc("munmap",unimplementedFunc),/*fstatFunc<Linux>*/
/* 92 */ SyscallDesc("truncate", fcntlFunc),
/* 93 */ SyscallDesc("ftruncate", unimplementedFunc),
/* 94 */ SyscallDesc("fchmod", unimplementedFunc),
@ -238,9 +237,9 @@ SyscallDesc MipsLinuxProcess::syscallDescs[] = {
/* 119 */ SyscallDesc("sigreturn", unimplementedFunc),
/* 120 */ SyscallDesc("clone", unimplementedFunc),
/* 121 */ SyscallDesc("setdomainname", unimplementedFunc),
/* 122 */ SyscallDesc("uname", unameFunc)/*,writevFunc<Linux>*/
/* 123 */ SyscallDesc("modify_ldt", fchownFunc),
/* 124 */ SyscallDesc("adjtimex", fchmodFunc<Linux>),
/* 122 */ SyscallDesc("uname", unameFunc),/*,writevFunc<Linux>*/
/* 123 */ SyscallDesc("modify_ldt", unimplementedFunc),
/* 124 */ SyscallDesc("adjtimex", unimplementedFunc),
/* 125 */ SyscallDesc("mprotect", unimplementedFunc),
/* 126 */ SyscallDesc("sigprocmask", unimplementedFunc),
/* 127 */ SyscallDesc("create_module", unimplementedFunc),