diff options
Diffstat (limited to 'src/sim')
| -rw-r--r-- | src/sim/syscall_emul.hh | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/src/sim/syscall_emul.hh b/src/sim/syscall_emul.hh index fa0959f0e..1b4580bbf 100644 --- a/src/sim/syscall_emul.hh +++ b/src/sim/syscall_emul.hh @@ -1687,6 +1687,48 @@ getrlimitFunc(SyscallDesc *desc, int callnum, Process *process, return 0; } +template <class OS> +SyscallReturn +prlimitFunc(SyscallDesc *desc, int callnum, Process *process, + ThreadContext *tc) +{ + int index = 0; + if (process->getSyscallArg(tc, index) != 0) + { + warn("prlimit: ignoring rlimits for nonzero pid"); + return -EPERM; + } + int resource = process->getSyscallArg(tc, index); + Addr n = process->getSyscallArg(tc, index); + if (n != 0) + warn("prlimit: ignoring new rlimit"); + Addr o = process->getSyscallArg(tc, index); + if (o != 0) + { + TypedBufferArg<typename OS::rlimit> rlp( + process->getSyscallArg(tc, index)); + switch (resource) { + case OS::TGT_RLIMIT_STACK: + // max stack size in bytes: make up a number (8MB for now) + rlp->rlim_cur = rlp->rlim_max = 8 * 1024 * 1024; + rlp->rlim_cur = TheISA::htog(rlp->rlim_cur); + rlp->rlim_max = TheISA::htog(rlp->rlim_max); + break; + case OS::TGT_RLIMIT_DATA: + // max data segment size in bytes: make up a number + rlp->rlim_cur = rlp->rlim_max = 256*1024*1024; + rlp->rlim_cur = TheISA::htog(rlp->rlim_cur); + rlp->rlim_max = TheISA::htog(rlp->rlim_max); + default: + warn("prlimit: unimplemented resource %d", resource); + return -EINVAL; + break; + } + rlp.copyOut(tc->getMemProxy()); + } + return 0; +} + /// Target clock_gettime() function. template <class OS> SyscallReturn |