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| author | Matt Sinclair <mattdsinclair@gmail.com> | 2018-06-21 14:17:17 -0400 |
|---|---|---|
| committer | Matt Sinclair <mattdsinclair@gmail.com> | 2018-06-25 18:36:29 +0000 |
| commit | 3fb16fa3a3990ee4d2d2546d51db2220adb61a46 (patch) | |
| tree | 52b547360e736ca3e9d584e1ce4ead9ad2d3cc30 /src/sim | |
| parent | fe330fdd3568beb880465a0ee974c7913d73dfcb (diff) | |
| download | gem5-3fb16fa3a3990ee4d2d2546d51db2220adb61a46.tar.xz | |
syscall_emul: adding link system call
Change-Id: If8922c2233bbe1f6fce35f64d1a44b91d2cfeed2
Reviewed-on: https://gem5-review.googlesource.com/11489
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Brandon Potter <Brandon.Potter@amd.com>
Diffstat (limited to 'src/sim')
| -rw-r--r-- | src/sim/syscall_emul.cc | 19 | ||||
| -rw-r--r-- | src/sim/syscall_emul.hh | 4 |
2 files changed, 23 insertions, 0 deletions
diff --git a/src/sim/syscall_emul.cc b/src/sim/syscall_emul.cc index 7f4d76630..c56963acf 100644 --- a/src/sim/syscall_emul.cc +++ b/src/sim/syscall_emul.cc @@ -519,6 +519,25 @@ unlinkHelper(SyscallDesc *desc, int num, Process *p, ThreadContext *tc, return (result == -1) ? -errno : result; } +SyscallReturn +linkFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc) +{ + string path; + string new_path; + + int index = 0; + auto &virt_mem = tc->getMemProxy(); + if (!virt_mem.tryReadString(path, p->getSyscallArg(tc, index))) + return -EFAULT; + if (!virt_mem.tryReadString(new_path, p->getSyscallArg(tc, index))) + return -EFAULT; + + path = p->fullPath(path); + new_path = p->fullPath(new_path); + + int result = link(path.c_str(), new_path.c_str()); + return (result == -1) ? -errno : result; +} SyscallReturn mkdirFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc) diff --git a/src/sim/syscall_emul.hh b/src/sim/syscall_emul.hh index e5b0f455a..e3d99cea9 100644 --- a/src/sim/syscall_emul.hh +++ b/src/sim/syscall_emul.hh @@ -203,6 +203,10 @@ SyscallReturn unlinkHelper(SyscallDesc *desc, int num, SyscallReturn unlinkFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc); +/// Target link() handler +SyscallReturn linkFunc(SyscallDesc *desc, int num, Process *p, + ThreadContext *tc); + /// Target mkdir() handler. SyscallReturn mkdirFunc(SyscallDesc *desc, int num, Process *p, ThreadContext *tc); |