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LibELF: Use StringView to carry temporary strings in auxiliary vector

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Let's not force clients to provide a String.
This commit is contained in:
Andreas Kling 2021-09-07 13:19:40 +02:00
parent cae20d2aa9
commit 226383f45b
3 changed files with 7 additions and 7 deletions
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8
Kernel/Syscalls/execve.cpp
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@ -40,7 +40,7 @@ struct LoadResult {
WeakPtr<Memory::Region> stack_region;
};
static Vector<ELF::AuxiliaryValue> generate_auxiliary_vector(FlatPtr load_base, FlatPtr entry_eip, UserID uid, UserID euid, GroupID gid, GroupID egid, String executable_path, Optional<Process::ScopedDescriptionAllocation> const& main_program_fd_allocation);
static Vector<ELF::AuxiliaryValue> generate_auxiliary_vector(FlatPtr load_base, FlatPtr entry_eip, UserID uid, UserID euid, GroupID gid, GroupID egid, StringView executable_path, Optional<Process::ScopedDescriptionAllocation> const& main_program_fd_allocation);
static bool validate_stack_size(const Vector<String>& arguments, const Vector<String>& environment)
{
@ -90,10 +90,10 @@ static KResultOr<FlatPtr> make_userspace_context_for_main_thread([[maybe_unused]
VERIFY(result.is_success());
};
auto push_string_on_new_stack = [&new_sp](const String& string) {
auto push_string_on_new_stack = [&new_sp](StringView string) {
new_sp -= round_up_to_power_of_two(string.length() + 1, sizeof(FlatPtr));
Userspace<FlatPtr*> stack_ptr = new_sp;
auto result = copy_to_user(stack_ptr, string.characters(), string.length() + 1);
auto result = copy_to_user(stack_ptr, string.characters_without_null_termination(), string.length() + 1);
VERIFY(result.is_success());
};
@ -633,7 +633,7 @@ KResult Process::do_exec(NonnullRefPtr<FileDescription> main_program_description
return KSuccess;
}
static Vector<ELF::AuxiliaryValue> generate_auxiliary_vector(FlatPtr load_base, FlatPtr entry_eip, UserID uid, UserID euid, GroupID gid, GroupID egid, String executable_path, Optional<Process::ScopedDescriptionAllocation> const& main_program_fd_allocation)
static Vector<ELF::AuxiliaryValue> generate_auxiliary_vector(FlatPtr load_base, FlatPtr entry_eip, UserID uid, UserID euid, GroupID gid, GroupID egid, StringView executable_path, Optional<Process::ScopedDescriptionAllocation> const& main_program_fd_allocation)
{
Vector<ELF::AuxiliaryValue> auxv;
// PHDR/EXECFD