diff options
| author | Mitch Hayenga <mitch.hayenga+gem5@gmail.com> | 2013-01-08 08:54:07 -0500 |
|---|---|---|
| committer | Mitch Hayenga <mitch.hayenga+gem5@gmail.com> | 2013-01-08 08:54:07 -0500 |
| commit | 4a752b1655c531a2fd7d98dbe24239fed5261291 (patch) | |
| tree | f950f5788bf2ee608d2364988b934e287d5a99e3 /src | |
| parent | c7dbd5e7686bbb065dfe2a74b92f4d9463ddfa80 (diff) | |
| download | gem5-4a752b1655c531a2fd7d98dbe24239fed5261291.tar.xz | |
arm: add access syscall for ARM SE mode
This patch adds the "access" syscall for ARM SE as required by some spec2006
benchmarks.
Diffstat (limited to 'src')
| -rw-r--r-- | src/arch/arm/linux/process.cc | 2 | ||||
| -rw-r--r-- | src/sim/syscall_emul.cc | 17 | ||||
| -rw-r--r-- | src/sim/syscall_emul.hh | 4 |
3 files changed, 22 insertions, 1 deletions
diff --git a/src/arch/arm/linux/process.cc b/src/arch/arm/linux/process.cc index 088f9907e..169565a04 100644 --- a/src/arch/arm/linux/process.cc +++ b/src/arch/arm/linux/process.cc @@ -108,7 +108,7 @@ SyscallDesc ArmLinuxProcess::syscallDescs[] = { /* 30 */ SyscallDesc("utime", unimplementedFunc), /* 31 */ SyscallDesc("unused#31", unimplementedFunc), /* 32 */ SyscallDesc("unused#32", unimplementedFunc), - /* 33 */ SyscallDesc("access", unimplementedFunc), + /* 33 */ SyscallDesc("access", accessFunc), /* 34 */ SyscallDesc("nice", unimplementedFunc), /* 35 */ SyscallDesc("unused#35", unimplementedFunc), /* 36 */ SyscallDesc("sync", unimplementedFunc), diff --git a/src/sim/syscall_emul.cc b/src/sim/syscall_emul.cc index 779e567f5..a86065317 100644 --- a/src/sim/syscall_emul.cc +++ b/src/sim/syscall_emul.cc @@ -851,3 +851,20 @@ cloneFunc(SyscallDesc *desc, int callnum, LiveProcess *process, } } +SyscallReturn +accessFunc(SyscallDesc *desc, int callnum, LiveProcess *p, ThreadContext *tc) +{ + int index = 0; + + string path; + if (!tc->getMemProxy().tryReadString(path, p->getSyscallArg(tc, index))) + return (TheISA::IntReg)-EFAULT; + + // Adjust path for current working directory + path = p->fullPath(path); + + mode_t mode = p->getSyscallArg(tc, index); + + int result = access(path.c_str(), mode); + return (result == -1) ? -errno : result; +} diff --git a/src/sim/syscall_emul.hh b/src/sim/syscall_emul.hh index e98e771d5..364b66c0a 100644 --- a/src/sim/syscall_emul.hh +++ b/src/sim/syscall_emul.hh @@ -335,6 +335,10 @@ SyscallReturn getegidFunc(SyscallDesc *desc, int num, SyscallReturn cloneFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc); +/// Target access() handler +SyscallReturn accessFunc(SyscallDesc *desc, int num, + LiveProcess *p, ThreadContext *tc); + /// Futex system call /// Implemented by Daniel Sanchez /// Used by printf's in multi-threaded apps |