diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/sim/syscall_emul.cc | 18 | ||||
| -rw-r--r-- | src/sim/syscall_emul.hh | 7 |
2 files changed, 20 insertions, 5 deletions
diff --git a/src/sim/syscall_emul.cc b/src/sim/syscall_emul.cc index 8dc055c5d..f064fd858 100644 --- a/src/sim/syscall_emul.cc +++ b/src/sim/syscall_emul.cc @@ -39,6 +39,7 @@ #include <iostream> #include <mutex> #include <string> +#include <unordered_map> #include "arch/utility.hh" #include "base/chunk_generator.hh" @@ -75,9 +76,20 @@ unimplementedFunc(SyscallDesc *desc, int callnum, ThreadContext *tc) SyscallReturn ignoreFunc(SyscallDesc *desc, int callnum, ThreadContext *tc) { - if (desc->needWarning()) { - warn("ignoring syscall %s(...)%s", desc->name(), desc->warnOnce() ? - "\n (further warnings will be suppressed)" : ""); + warn("ignoring syscall %s(...)", desc->name()); + return 0; +} + +SyscallReturn +ignoreWarnOnceFunc(SyscallDesc *desc, int num, ThreadContext *tc) +{ + static std::unordered_map<SyscallDesc *, bool> bool_map; + + bool &warned = bool_map[desc]; + if (!warned) { + warn("ignoring syscall %s(...)\n" + " (further warnings will be suppressed)", desc->name()); + warned = true; } return 0; diff --git a/src/sim/syscall_emul.hh b/src/sim/syscall_emul.hh index e467b0bff..f7d87d445 100644 --- a/src/sim/syscall_emul.hh +++ b/src/sim/syscall_emul.hh @@ -127,9 +127,12 @@ SyscallReturn unimplementedFunc(SyscallDesc *desc, int num, ThreadContext *tc); /// Handler for unimplemented syscalls that we never intend to /// implement (signal handling, etc.) and should not affect the correct -/// behavior of the program. Print a warning only if the appropriate -/// trace flag is enabled. Return success to the target program. +/// behavior of the program. Prints a warning. Return success to the target +/// program. SyscallReturn ignoreFunc(SyscallDesc *desc, int num, ThreadContext *tc); +/// Like above, but only prints a warning once per syscall desc it's used with. +SyscallReturn +ignoreWarnOnceFunc(SyscallDesc *desc, int num, ThreadContext *tc); // Target fallocateFunc() handler. SyscallReturn fallocateFunc(SyscallDesc *desc, int num, ThreadContext *tc); |