From e22b7015353be824620b1f0f5e32a8575b898a8c Mon Sep 17 00:00:00 2001 From: "Wesley W. Terpstra" Date: Tue, 12 Jul 2011 14:42:00 +0300 Subject: [PATCH] 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 Signed-off-by: Riku Voipio --- 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 4b9e3b8e8e..9eb41a01ac 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 1fdc84d3e7..a117407d84 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 */ -- GitLab