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mips: rlimit codes are not the same 

The codes for get/setrlimit differ between linux target platforms.
This patch adds conversion.
This is important else programs (rsyslog, python, ...) can go into a
near infinite loop trying to close all the file descriptors from 0 to
-1.

Signed-off-by: Wesley W. Terpstra <terpstra@debian.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
This commit is contained in:
Wesley W. Terpstra 2011-07-12 14:42:00 +03:00 committed by Riku Voipio
parent 95b33b2f4f
commit e22b701535
2 changed files with 76 additions and 3 deletions
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45
linux-user/syscall.c
View File

@ -960,6 +960,44 @@ static inline target_ulong host_to_target_rlim(rlim_t rlim)
return result;
}
static inline int target_to_host_resource(int code)
{
switch (code) {
case TARGET_RLIMIT_AS:
return RLIMIT_AS;
case TARGET_RLIMIT_CORE:
return RLIMIT_CORE;
case TARGET_RLIMIT_CPU:
return RLIMIT_CPU;
case TARGET_RLIMIT_DATA:
return RLIMIT_DATA;
case TARGET_RLIMIT_FSIZE:
return RLIMIT_FSIZE;
case TARGET_RLIMIT_LOCKS:
return RLIMIT_LOCKS;
case TARGET_RLIMIT_MEMLOCK:
return RLIMIT_MEMLOCK;
case TARGET_RLIMIT_MSGQUEUE:
return RLIMIT_MSGQUEUE;
case TARGET_RLIMIT_NICE:
return RLIMIT_NICE;
case TARGET_RLIMIT_NOFILE:
return RLIMIT_NOFILE;
case TARGET_RLIMIT_NPROC:
return RLIMIT_NPROC;
case TARGET_RLIMIT_RSS:
return RLIMIT_RSS;
case TARGET_RLIMIT_RTPRIO:
return RLIMIT_RTPRIO;
case TARGET_RLIMIT_SIGPENDING:
return RLIMIT_SIGPENDING;
case TARGET_RLIMIT_STACK:
return RLIMIT_STACK;
default:
return code;
}
}
static inline abi_long copy_from_user_timeval(struct timeval *tv,
abi_ulong target_tv_addr)
{
@ -5570,7 +5608,7 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
break;
case TARGET_NR_setrlimit:
{
int resource = arg1;
int resource = target_to_host_resource(arg1);
struct target_rlimit *target_rlim;
struct rlimit rlim;
if (!lock_user_struct(VERIFY_READ, target_rlim, arg2, 1))
@ -5583,7 +5621,7 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
break;
case TARGET_NR_getrlimit:
{
int resource = arg1;
int resource = target_to_host_resource(arg1);
struct target_rlimit *target_rlim;
struct rlimit rlim;
@ -6892,7 +6930,8 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
case TARGET_NR_ugetrlimit:
{
struct rlimit rlim;
ret = get_errno(getrlimit(arg1, &rlim));
int resource = target_to_host_resource(arg1);
ret = get_errno(getrlimit(resource, &rlim));
if (!is_error(ret)) {
struct target_rlimit *target_rlim;
if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))

34
linux-user/syscall_defs.h
View File

@ -693,6 +693,40 @@ struct target_rlimit {
#define TARGET_RLIM_INFINITY ((target_ulong)~0UL)
#endif
#if defined(TARGET_MIPS)
#define TARGET_RLIMIT_CPU 0
#define TARGET_RLIMIT_FSIZE 1
#define TARGET_RLIMIT_DATA 2
#define TARGET_RLIMIT_STACK 3
#define TARGET_RLIMIT_CORE 4
#define TARGET_RLIMIT_RSS 7
#define TARGET_RLIMIT_NPROC 8
#define TARGET_RLIMIT_NOFILE 5
#define TARGET_RLIMIT_MEMLOCK 9
#define TARGET_RLIMIT_AS 6
#define TARGET_RLIMIT_LOCKS 10
#define TARGET_RLIMIT_SIGPENDING 11
#define TARGET_RLIMIT_MSGQUEUE 12
#define TARGET_RLIMIT_NICE 13
#define TARGET_RLIMIT_RTPRIO 14
#else
#define TARGET_RLIMIT_CPU 0
#define TARGET_RLIMIT_FSIZE 1
#define TARGET_RLIMIT_DATA 2
#define TARGET_RLIMIT_STACK 3
#define TARGET_RLIMIT_CORE 4
#define TARGET_RLIMIT_RSS 5
#define TARGET_RLIMIT_NPROC 6
#define TARGET_RLIMIT_NOFILE 7
#define TARGET_RLIMIT_MEMLOCK 8
#define TARGET_RLIMIT_AS 9
#define TARGET_RLIMIT_LOCKS 10
#define TARGET_RLIMIT_SIGPENDING 11
#define TARGET_RLIMIT_MSGQUEUE 12
#define TARGET_RLIMIT_NICE 13
#define TARGET_RLIMIT_RTPRIO 14
#endif
struct target_pollfd {
int fd; /* file descriptor */
short events; /* requested events */