From: Wesley W. Terpstra <terps...@debian.org>
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 <terps...@debian.org>
Signed-off-by: Riku Voipio <riku.voi...@linaro.org>
---
linux-user/syscall.c | 45 ++++++++++++++++++++++++++++++++++++++++++---
linux-user/syscall_defs.h | 34 ++++++++++++++++++++++++++++++++++
2 files changed, 76 insertions(+), 3 deletions(-)
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 4b9e3b8..9eb41a0 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -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))
diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h
index 1fdc84d..a117407 100644
--- a/linux-user/syscall_defs.h
+++ b/linux-user/syscall_defs.h
@@ -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 */
--
1.7.4.1
