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Add time, gettimeofday, and getrusage system call support

gdb-4_18-branch
Michael Meissner 31 years ago
parent
f4c952e475
commit
5b18a1a0bf
3 changed files with 243 additions and 42 deletions
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  1. 12
      sim/ppc/ChangeLog
  2. 8
      sim/ppc/configure.in
  3. 265
      sim/ppc/emul_unix.c

12
sim/ppc/ChangeLog
View File

@ -1,3 +1,15 @@
Mon Jun 3 15:02:04 1996 Michael Meissner <meissner@tiktok.cygnus.com>
* emul_unix.c (do_unix_{time,gettimeofday,getrusage}): Add support
for time, gettimeofday, and getrusage system calls.
({solaris,linux}_descriptors): Add new system calls.
(do_get{,e}{uid,gid}): Use gid_t/uid_t types.
(do_get{,p}pid): Use pic_t types.
* configure.in (AC_TYPE_{GETGROUPS,SIGNAL}): Define.
(AC_TYPE_{MODE,OFF,PID,SIZE,UID}_T): Define.
* config{.in,ure}: Regenerate.
Sun Jun 2 11:21:17 1996 Michael Meissner <meissner@tiktok.cygnus.com>
* emul_unix.{h,c}: New files to provide Solaris and Linux system

8
sim/ppc/configure.in
View File

@ -444,6 +444,14 @@ AC_STRUCT_ST_BLOCKS
AC_STRUCT_ST_RDEV
AC_STRUCT_TIMEZONE
AC_TYPE_GETGROUPS
AC_TYPE_MODE_T
AC_TYPE_OFF_T
AC_TYPE_PID_T
AC_TYPE_SIGNAL
AC_TYPE_SIZE_T
AC_TYPE_UID_T
AC_CHECK_FUNCS(cfgetispeed cfgetospeed cfsetispeed cfsetospeed chdir chmod chown dup dup2 fchmod fchown fcntl fstat fstatfs getdirentries getegid geteuid getgid getpid getppid getrusage gettimeofday getuid ioctl kill link lseek lstat mkdir pipe readlink rmdir setreuid setregid stat sigprocmask stat symlink tcgetattr tcsetattr tcsendbreak tcdrain tcflush tcflow tcgetpgrp tcsetpgrp time umask unlink)
AC_CHECK_HEADERS(fcntl.h stdlib.h string.h strings.h sys/ioctl.h sys/mount.h sys/param.h sys/resource.h sys/stat.h sys/termio.h sys/termios.h sys/time.h sys/times.h sys/types.h time.h unistd.h)

265
sim/ppc/emul_unix.c
View File

@ -141,8 +141,44 @@ struct _os_emul_data {
emul_syscall *syscalls;
};
/* Emulation of simple UNIX system calls that are common on all systems. */
/* Structures that are common agmonst the UNIX varients */
struct unix_timeval {
signed32 tv_sec; /* seconds */
signed32 tv_usec; /* microseconds */
};
struct unix_timezone {
signed32 tz_minuteswest; /* minutes west of Greenwich */
signed32 tz_dsttime; /* type of dst correction */
};
#define UNIX_RUSAGE_SELF 0
#define UNIX_RUSAGE_CHILDREN (-1)
#define UNIX_RUSAGE_BOTH (-2) /* sys_wait4() uses this */
struct unix_rusage {
struct unix_timeval ru_utime; /* user time used */
struct unix_timeval ru_stime; /* system time used */
signed32 ru_maxrss; /* maximum resident set size */
signed32 ru_ixrss; /* integral shared memory size */
signed32 ru_idrss; /* integral unshared data size */
signed32 ru_isrss; /* integral unshared stack size */
signed32 ru_minflt; /* any page faults not requiring I/O */
signed32 ru_majflt; /* any page faults requiring I/O */
signed32 ru_nswap; /* swaps */
signed32 ru_inblock; /* block input operations */
signed32 ru_oublock; /* block output operations */
signed32 ru_msgsnd; /* messages sent */
signed32 ru_msgrcv; /* messages received */
signed32 ru_nsignals; /* signals received */
signed32 ru_nvcsw; /* voluntary context switches */
signed32 ru_nivcsw; /* involuntary " */
};
static void
do_unix_exit(os_emul_data *emul,
unsigned call,
@ -305,8 +341,8 @@ do_unix_getpid(os_emul_data *emul,
cpu *processor,
unsigned_word cia)
{
int status = (int)getpid();
emul_write_status(processor, status, errno);
pid_t status = getpid();
emul_write_status(processor, (int)status, errno);
}
#endif
@ -320,8 +356,8 @@ do_unix_getppid(os_emul_data *emul,
cpu *processor,
unsigned_word cia)
{
int status = (int)getppid();
emul_write_status(processor, status, errno);
pid_t status = getppid();
emul_write_status(processor, (int)status, errno);
}
#endif
@ -351,9 +387,9 @@ do_unix_getuid2(os_emul_data *emul,
cpu *processor,
unsigned_word cia)
{
int uid = (int)getuid();
int euid = (int)geteuid();
emul_write2_status(processor, uid, euid, errno);
uid_t uid = getuid();
uid_t euid = geteuid();
emul_write2_status(processor, (int)uid, (int)euid, errno);
}
#endif
@ -367,8 +403,8 @@ do_unix_getuid(os_emul_data *emul,
cpu *processor,
unsigned_word cia)
{
int status = (int)getuid();
emul_write_status(processor, status, errno);
uid_t status = getuid();
emul_write_status(processor, (int)status, errno);
}
#endif
@ -382,8 +418,8 @@ do_unix_geteuid(os_emul_data *emul,
cpu *processor,
unsigned_word cia)
{
int status = (int)geteuid();
emul_write_status(processor, status, errno);
uid_t status = geteuid();
emul_write_status(processor, (int)status, errno);
}
#endif
@ -465,21 +501,16 @@ do_unix_lseek(os_emul_data *emul,
cpu *processor,
unsigned_word cia)
{
int fildes = cpu_registers(processor)->gpr[arg0];
off_t offset = emul_read_gpr64(processor, arg0+2);
int whence = cpu_registers(processor)->gpr[arg0+4];
int fildes = (int)cpu_registers(processor)->gpr[arg0];
off_t offset = (off_t)cpu_registers(processor)->gpr[arg0+1];
int whence = (int)cpu_registers(processor)->gpr[arg0+2];
off_t status;
if (WITH_TRACE && ppc_trace[trace_os_emul])
printf_filtered ("%d %ld %d", fildes, (long)offset, whence);
status = lseek(fildes, offset, whence);
if (status == -1)
emul_write_status(processor, -1, errno);
else {
emul_write_status(processor, 0, 0); /* success */
emul_write_gpr64(processor, 3, status);
}
emul_write_status(processor, (int)status, errno);
}
#endif
@ -494,9 +525,9 @@ do_unix_getgid2(os_emul_data *emul,
cpu *processor,
unsigned_word cia)
{
int gid = (int)getgid();
int egid = (int)getegid();
emul_write2_status(processor, gid, egid, errno);
gid_t gid = getgid();
gid_t egid = getegid();
emul_write2_status(processor, (int)gid, (int)egid, errno);
}
#endif
@ -510,8 +541,8 @@ do_unix_getgid(os_emul_data *emul,
cpu *processor,
unsigned_word cia)
{
int status = (int)getgid();
emul_write_status(processor, status, 0);
gid_t status = getgid();
emul_write_status(processor, (int)status, errno);
}
#endif
@ -525,8 +556,8 @@ do_unix_getegid(os_emul_data *emul,
cpu *processor,
unsigned_word cia)
{
int status = (int)getegid();
emul_write_status(processor, status, errno);
gid_t status = getegid();
emul_write_status(processor, (int)status, errno);
}
#endif
@ -540,7 +571,7 @@ do_unix_umask(os_emul_data *emul,
cpu *processor,
unsigned_word cia)
{
int mask = cpu_registers(processor)->gpr[arg0];
mode_t mask = (mode_t)cpu_registers(processor)->gpr[arg0];
int status = umask(mask);
if (WITH_TRACE && ppc_trace[trace_os_emul])
@ -695,6 +726,161 @@ do_unix_rmdir(os_emul_data *emul,
}
#endif
#ifndef HAVE_TIME
#define do_unix_time 0
#else
static void
do_unix_time(os_emul_data *emul,
unsigned call,
const int arg0,
cpu *processor,
unsigned_word cia)
{
unsigned_word tp = cpu_registers(processor)->gpr[arg0];
time_t now = time ((time_t *)0);
unsigned_word status = H2T_4(now);
if (WITH_TRACE && ppc_trace[trace_os_emul])
printf_filtered ("0x%lx", (long)tp);
emul_write_status(processor, (int)status, errno);
if (tp)
emul_write_buffer(&status, tp, sizeof(status), processor, cia);
}
#endif
#if !defined(HAVE_GETTIMEOFDAY) || !defined(HAVE_SYS_TIME_H)
#define do_unix_gettimeofday 0
#else
static void
do_unix_gettimeofday(os_emul_data *emul,
unsigned call,
const int arg0,
cpu *processor,
unsigned_word cia)
{
unsigned_word tv = cpu_registers(processor)->gpr[arg0];
unsigned_word tz = cpu_registers(processor)->gpr[arg0+1];
struct unix_timeval target_timeval;
struct timeval host_timeval;
struct unix_timezone target_timezone;
struct timezone host_timezone;
int status;
if (WITH_TRACE && ppc_trace[trace_os_emul])
printf_filtered ("0x%lx, 0x%lx", (long)tv, (long)tz);
/* Just in case the system doesn't set the timezone structure */
host_timezone.tz_minuteswest = 0;
host_timezone.tz_dsttime = 0;
status = gettimeofday(&host_timeval, &host_timezone);
if (status >= 0) {
if (tv) {
target_timeval.tv_sec = H2T_4(host_timeval.tv_sec);
target_timeval.tv_usec = H2T_4(host_timeval.tv_usec);
emul_write_buffer((void *) &target_timeval, tv, sizeof(target_timeval), processor, cia);
}
if (tz) {
target_timezone.tz_minuteswest = H2T_4(host_timezone.tz_minuteswest);
target_timezone.tz_dsttime = H2T_4(host_timezone.tz_dsttime);
emul_write_buffer((void *) &target_timezone, tv, sizeof(target_timezone), processor, cia);
}
}
emul_write_status(processor, (int)status, errno);
}
#endif
#ifndef HAVE_GETRUSAGE
#define do_unix_getrusage 0
#else
static void
do_unix_getrusage(os_emul_data *emul,
unsigned call,
const int arg0,
cpu *processor,
unsigned_word cia)
{
signed_word who = (signed_word)cpu_registers(processor)->gpr[arg0];
unsigned_word usage = cpu_registers(processor)->gpr[arg0+1];
struct rusage host_rusage, host_rusage2;
struct unix_rusage target_rusage;
int status;
if (WITH_TRACE && ppc_trace[trace_os_emul])
printf_filtered ("%ld, 0x%lx", (long)who, (long)usage);
switch (who) {
default:
status = -1;
errno = EINVAL;
break;
case UNIX_RUSAGE_SELF:
status = getrusage(RUSAGE_SELF, &host_rusage);
break;
case UNIX_RUSAGE_CHILDREN:
status = getrusage(RUSAGE_CHILDREN, &host_rusage);
break;
case UNIX_RUSAGE_BOTH:
status = getrusage(RUSAGE_SELF, &host_rusage);
if (status >= 0) {
status = getrusage(RUSAGE_CHILDREN, &host_rusage2);
if (status >= 0) {
host_rusage.ru_utime.tv_sec += host_rusage2.ru_utime.tv_sec;
host_rusage.ru_utime.tv_usec += host_rusage2.ru_utime.tv_usec;
host_rusage.ru_stime.tv_sec += host_rusage2.ru_stime.tv_sec;
host_rusage.ru_stime.tv_usec += host_rusage2.ru_stime.tv_usec;
host_rusage.ru_maxrss += host_rusage2.ru_maxrss;
host_rusage.ru_ixrss += host_rusage2.ru_ixrss;
host_rusage.ru_idrss += host_rusage2.ru_idrss;
host_rusage.ru_isrss += host_rusage2.ru_isrss;
host_rusage.ru_minflt += host_rusage2.ru_minflt;
host_rusage.ru_majflt += host_rusage2.ru_majflt;
host_rusage.ru_nswap += host_rusage2.ru_nswap;
host_rusage.ru_inblock += host_rusage2.ru_inblock;
host_rusage.ru_oublock += host_rusage2.ru_oublock;
host_rusage.ru_msgsnd += host_rusage2.ru_msgsnd;
host_rusage.ru_msgrcv += host_rusage2.ru_msgrcv;
host_rusage.ru_nsignals += host_rusage2.ru_nsignals;
host_rusage.ru_nvcsw += host_rusage2.ru_nvcsw;
host_rusage.ru_nivcsw += host_rusage2.ru_nivcsw;
}
}
}
if (status >= 0) {
target_rusage.ru_utime.tv_sec = H2T_4(host_rusage2.ru_utime.tv_sec);
target_rusage.ru_utime.tv_usec = H2T_4(host_rusage2.ru_utime.tv_usec);
target_rusage.ru_stime.tv_sec = H2T_4(host_rusage2.ru_stime.tv_sec);
target_rusage.ru_stime.tv_usec = H2T_4(host_rusage2.ru_stime.tv_usec);
target_rusage.ru_maxrss = H2T_4(host_rusage2.ru_maxrss);
target_rusage.ru_ixrss = H2T_4(host_rusage2.ru_ixrss);
target_rusage.ru_idrss = H2T_4(host_rusage2.ru_idrss);
target_rusage.ru_isrss = H2T_4(host_rusage2.ru_isrss);
target_rusage.ru_minflt = H2T_4(host_rusage2.ru_minflt);
target_rusage.ru_majflt = H2T_4(host_rusage2.ru_majflt);
target_rusage.ru_nswap = H2T_4(host_rusage2.ru_nswap);
target_rusage.ru_inblock = H2T_4(host_rusage2.ru_inblock);
target_rusage.ru_oublock = H2T_4(host_rusage2.ru_oublock);
target_rusage.ru_msgsnd = H2T_4(host_rusage2.ru_msgsnd);
target_rusage.ru_msgrcv = H2T_4(host_rusage2.ru_msgrcv);
target_rusage.ru_nsignals = H2T_4(host_rusage2.ru_nsignals);
target_rusage.ru_nvcsw = H2T_4(host_rusage2.ru_nvcsw);
target_rusage.ru_nivcsw = H2T_4(host_rusage2.ru_nivcsw);
emul_write_buffer((void *) &target_rusage, usage, sizeof(target_rusage), processor, cia);
}
emul_write_status(processor, status, errno);
}
#endif
/* Common code for initializing the system call stuff */
@ -772,11 +958,6 @@ typedef unsigned32 solaris_nlink_t;
#ifdef HAVE_SYS_STAT_H
#define SOLARIS_ST_FSTYPSZ 16 /* array size for file system type name */
typedef struct {
solaris_time_t tv_sec;
signed32 tv_usec;
} solaris_timestruc_t;
struct solaris_stat {
solaris_dev_t st_dev;
signed32 st_pad1[3]; /* reserved for network id */
@ -789,9 +970,9 @@ struct solaris_stat {
signed32 st_pad2[2];
solaris_off_t st_size;
signed32 st_pad3; /* future off_t expansion */
solaris_timestruc_t st_atim;
solaris_timestruc_t st_mtim;
solaris_timestruc_t st_ctim;
struct unix_timeval st_atim;
struct unix_timeval st_mtim;
struct unix_timeval st_ctim;
signed32 st_blksize;
signed32 st_blocks;
char st_fstype[SOLARIS_ST_FSTYPSZ];
@ -1222,7 +1403,7 @@ static emul_syscall_descriptor solaris_descriptors[] = {
/* 10 */ { do_unix_unlink, "unlink" },
/* 11 */ { 0, "exec" },
/* 12 */ { do_unix_chdir, "chdir" },
/* 13 */ { 0, "time" },
/* 13 */ { do_unix_time, "time" },
/* 14 */ { 0, "mknod" },
/* 15 */ { 0, "chmod" },
/* 16 */ { 0, "chown" },
@ -1366,7 +1547,7 @@ static emul_syscall_descriptor solaris_descriptors[] = {
/* 153 */ { 0, "fchroot" },
/* 154 */ { 0, "utimes" },
/* 155 */ { 0, "vhangup" },
/* 156 */ { 0, "gettimeofday" },
/* 156 */ { do_unix_gettimeofday, "gettimeofday" },
/* 157 */ { 0, "getitimer" },
/* 158 */ { 0, "setitimer" },
/* 159 */ { 0, "lwp_create" },
@ -2152,7 +2333,7 @@ static emul_syscall_descriptor linux_descriptors[] = {
/* 10 */ { do_unix_unlink, "unlink" },
/* 11 */ { 0, "execve" },
/* 12 */ { do_unix_chdir, "chdir" },
/* 13 */ { 0, "time" },
/* 13 */ { do_unix_time, "time" },
/* 14 */ { 0, "mknod" },
/* 15 */ { 0, "chmod" },
/* 16 */ { 0, "chown" },
@ -2216,8 +2397,8 @@ static emul_syscall_descriptor linux_descriptors[] = {
/* 74 */ { 0, "sethostname" },
/* 75 */ { 0, "setrlimit" },
/* 76 */ { 0, "getrlimit" },
/* 77 */ { 0, "getrusage" },
/* 78 */ { 0, "gettimeofday" },
/* 77 */ { do_unix_getrusage, "getrusage" },
/* 78 */ { do_unix_gettimeofday, "gettimeofday" },
/* 79 */ { 0, "settimeofday" },
/* 80 */ { 0, "getgroups" },
/* 81 */ { 0, "setgroups" },

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