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UserspaceEmulator: Add the dup2 syscall

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This commit is contained in:
Andreas Kling 2020-08-07 18:46:56 +02:00
parent 5dce5fa7c2
commit fae9c9f81f
2 changed files with 8 additions and 0 deletions
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7
DevTools/UserspaceEmulator/Emulator.cpp
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@ -253,6 +253,8 @@ u32 Emulator::virt_syscall(u32 function, u32 arg1, u32 arg2, u32 arg3)
switch (function) { switch (function) {
case SC_chdir: case SC_chdir:
return virt$chdir(arg1, arg2); return virt$chdir(arg1, arg2);
case SC_dup2:
return virt$dup2(arg1, arg2);
case SC_access: case SC_access:
return virt$access(arg1, arg2, arg3); return virt$access(arg1, arg2, arg3);
case SC_waitid: case SC_waitid:
@ -1346,4 +1348,9 @@ int Emulator::virt$chdir(FlatPtr path, size_t path_length)
return syscall(SC_chdir, host_path.data(), host_path.size()); return syscall(SC_chdir, host_path.data(), host_path.size());
} }
int Emulator::virt$dup2(int old_fd, int new_fd)
{
return syscall(SC_dup2, old_fd, new_fd);
}
} }

1
DevTools/UserspaceEmulator/Emulator.h
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@ -138,6 +138,7 @@ private:
ssize_t virt$getrandom(FlatPtr buffer, size_t buffer_size, unsigned int flags); ssize_t virt$getrandom(FlatPtr buffer, size_t buffer_size, unsigned int flags);
int virt$sleep(unsigned); int virt$sleep(unsigned);
int virt$chdir(FlatPtr, size_t); int virt$chdir(FlatPtr, size_t);
int virt$dup2(int, int);
int virt$getpgrp(); int virt$getpgrp();
int virt$getpgid(pid_t); int virt$getpgid(pid_t);
int virt$setpgid(pid_t pid, pid_t pgid); int virt$setpgid(pid_t pid, pid_t pgid);