arm: add access syscall for ARM SE mode
This patch adds the "access" syscall for ARM SE as required by some spec2006 benchmarks.
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parent
c7dbd5e768
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4a752b1655
3 changed files with 22 additions and 1 deletions
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@ -108,7 +108,7 @@ SyscallDesc ArmLinuxProcess::syscallDescs[] = {
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/* 30 */ SyscallDesc("utime", unimplementedFunc),
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/* 31 */ SyscallDesc("unused#31", unimplementedFunc),
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/* 32 */ SyscallDesc("unused#32", unimplementedFunc),
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/* 33 */ SyscallDesc("access", unimplementedFunc),
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/* 33 */ SyscallDesc("access", accessFunc),
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/* 34 */ SyscallDesc("nice", unimplementedFunc),
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/* 35 */ SyscallDesc("unused#35", unimplementedFunc),
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/* 36 */ SyscallDesc("sync", unimplementedFunc),
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@ -851,3 +851,20 @@ cloneFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
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}
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}
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SyscallReturn
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accessFunc(SyscallDesc *desc, int callnum, LiveProcess *p, ThreadContext *tc)
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{
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int index = 0;
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string path;
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if (!tc->getMemProxy().tryReadString(path, p->getSyscallArg(tc, index)))
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return (TheISA::IntReg)-EFAULT;
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// Adjust path for current working directory
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path = p->fullPath(path);
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mode_t mode = p->getSyscallArg(tc, index);
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int result = access(path.c_str(), mode);
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return (result == -1) ? -errno : result;
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}
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@ -335,6 +335,10 @@ SyscallReturn getegidFunc(SyscallDesc *desc, int num,
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SyscallReturn cloneFunc(SyscallDesc *desc, int num,
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LiveProcess *p, ThreadContext *tc);
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/// Target access() handler
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SyscallReturn accessFunc(SyscallDesc *desc, int num,
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LiveProcess *p, ThreadContext *tc);
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/// Futex system call
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/// Implemented by Daniel Sanchez
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/// Used by printf's in multi-threaded apps
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