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UE: only write libc and libsystem location once

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This is important when emulating UE itself, which maps these files
two times, and then we forget the original location of it.
This commit is contained in:
Hendiadyoin1 2021-04-08 17:13:42 +02:00 • committed by Andreas Kling
commit 2469e07784
Notes: sideshowbarker 2024-07-18 20:38:26 +09:00
1 changed files with 2 additions and 3 deletions
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5
Userland/DevTools/UserspaceEmulator/Emulator_syscalls.cpp
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@ -880,13 +880,12 @@ u32 Emulator::virt$mmap(u32 params_addr)
mmu().add_region(MmapRegion::create_anonymous(final_address, final_size, params.prot, move(name_str))); mmu().add_region(MmapRegion::create_anonymous(final_address, final_size, params.prot, move(name_str)));
} else { } else {
auto region = MmapRegion::create_file_backed(final_address, final_size, params.prot, params.flags, params.fd, params.offset, move(name_str)); auto region = MmapRegion::create_file_backed(final_address, final_size, params.prot, params.flags, params.fd, params.offset, move(name_str));
if (region->name() == "libc.so: .text") { if (region->name() == "libc.so: .text" && !m_libc_start) {
m_libc_start = final_address; m_libc_start = final_address;
m_libc_end = final_address + final_size; m_libc_end = final_address + final_size;
bool rc = find_malloc_symbols(*region); bool rc = find_malloc_symbols(*region);
VERIFY(rc); VERIFY(rc);
} } else if (region->name() == "libsystem.so: .text" && !m_libsystem_start) {
if (region->name() == "libsystem.so: .text") {
m_libsystem_start = final_address; m_libsystem_start = final_address;
m_libsystem_end = final_address + final_size; m_libsystem_end = final_address + final_size;
} }