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UserspaceEmulator: Update virt$lseek and virt$ftruncate for 64bit off_t

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The syscalls' prototypes were recently changed in preparation for 64bit
storage in serenity, so update them here as well :^)
This commit is contained in:
Idan Horowitz 2021-03-23 20:37:55 +02:00 • committed by Andreas Kling
parent 663dea4a60
commit 0deb0c6891
2 changed files with 12 additions and 6 deletions
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14
Userland/DevTools/UserspaceEmulator/Emulator_syscalls.cpp
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@ -457,9 +457,11 @@ int Emulator::virt$get_stack_bounds(FlatPtr base, FlatPtr size)
return 0;
}
int Emulator::virt$ftruncate(int fd, off_t length)
int Emulator::virt$ftruncate(int fd, FlatPtr length_addr)
{
return syscall(SC_ftruncate, fd, length);
off_t length;
mmu().copy_from_vm(&length, length_addr, sizeof(off_t));
return syscall(SC_ftruncate, fd, &length);
}
mode_t Emulator::virt$umask(mode_t mask)
@ -578,9 +580,13 @@ int Emulator::virt$set_process_name(FlatPtr user_buffer, int size)
return syscall(SC_set_process_name, name.characters(), name.length());
}
int Emulator::virt$lseek(int fd, off_t offset, int whence)
int Emulator::virt$lseek(int fd, FlatPtr offset_addr, int whence)
{
return syscall(SC_lseek, fd, offset, whence);
off_t offset;
mmu().copy_from_vm(&offset, offset_addr, sizeof(off_t));
auto rc = syscall(SC_lseek, fd, &offset, whence);
mmu().copy_to_vm(offset_addr, &offset, sizeof(off_t));
return rc;
}
int Emulator::virt$socket(int domain, int type, int protocol)