Export symbols needed by Android drivers
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@ -70,6 +70,7 @@ linux (4.17.3-1) UNRELEASED; urgency=medium
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[ Ben Hutchings ]
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[ Ben Hutchings ]
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* [amd64,arm64,armhf] android: Build modules to support Anbox
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* [amd64,arm64,armhf] android: Build modules to support Anbox
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(Closes: #901492)
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(Closes: #901492)
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- Export symbols needed by Android drivers
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- Enable building ashmem and binder as modules
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- Enable building ashmem and binder as modules
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- Enable ANDROID
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- Enable ANDROID
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- Enable ANDROID_BINDER_IPC, ASHMEM as modules
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- Enable ANDROID_BINDER_IPC, ASHMEM as modules
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@ -0,0 +1,146 @@
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From: Ben Hutchings <ben@decadent.org.uk>
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Date: Tue, 26 Jun 2018 16:59:01 +0100
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Subject: Export symbols needed by Android drivers
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Bug-Debian: https://bugs.debian.org/901492
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We want to enable use of the Android ashmem and binder drivers to
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support Anbox, but they should not be built-in as that would waste
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resources and increase security attack surface on systems that don't
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need them.
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Export the currently un-exported symbols they depend on.
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---
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--- a/fs/file.c
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+++ b/fs/file.c
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@@ -409,6 +409,7 @@ struct files_struct *get_files_struct(st
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return files;
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}
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+EXPORT_SYMBOL_GPL(get_files_struct);
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void put_files_struct(struct files_struct *files)
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{
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@@ -421,6 +422,7 @@ void put_files_struct(struct files_struc
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kmem_cache_free(files_cachep, files);
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}
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}
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+EXPORT_SYMBOL_GPL(put_files_struct);
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void reset_files_struct(struct files_struct *files)
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{
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@@ -533,6 +535,7 @@ out:
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spin_unlock(&files->file_lock);
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return error;
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}
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+EXPORT_SYMBOL_GPL(__alloc_fd);
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static int alloc_fd(unsigned start, unsigned flags)
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{
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@@ -606,6 +609,7 @@ void __fd_install(struct files_struct *f
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rcu_assign_pointer(fdt->fd[fd], file);
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rcu_read_unlock_sched();
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}
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+EXPORT_SYMBOL_GPL(__fd_install);
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void fd_install(unsigned int fd, struct file *file)
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{
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--- a/kernel/fork.c
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+++ b/kernel/fork.c
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@@ -999,6 +999,7 @@ void mmput_async(struct mm_struct *mm)
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schedule_work(&mm->async_put_work);
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}
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}
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+EXPORT_SYMBOL_GPL(mmput_async);
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#endif
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/**
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--- a/kernel/signal.c
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+++ b/kernel/signal.c
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@@ -1280,6 +1280,7 @@ struct sighand_struct *__lock_task_sigha
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return sighand;
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}
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+EXPORT_SYMBOL_GPL(__lock_task_sighand);
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/*
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* send signal info to all the members of a group
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--- a/mm/memory.c
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+++ b/mm/memory.c
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@@ -1624,6 +1624,7 @@ void zap_page_range(struct vm_area_struc
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mmu_notifier_invalidate_range_end(mm, start, end);
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tlb_finish_mmu(&tlb, start, end);
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}
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+EXPORT_SYMBOL_GPL(zap_page_range);
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/**
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* zap_page_range_single - remove user pages in a given range
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--- a/mm/shmem.c
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+++ b/mm/shmem.c
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@@ -4326,6 +4326,7 @@ int shmem_zero_setup(struct vm_area_stru
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return 0;
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}
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+EXPORT_SYMBOL_GPL(shmem_zero_setup);
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/**
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* shmem_read_mapping_page_gfp - read into page cache, using specified page allocation flags.
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--- a/mm/vmalloc.c
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+++ b/mm/vmalloc.c
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@@ -1308,6 +1308,7 @@ int map_kernel_range_noflush(unsigned lo
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{
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return vmap_page_range_noflush(addr, addr + size, prot, pages);
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}
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+EXPORT_SYMBOL_GPL(map_kernel_range_noflush);
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/**
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* unmap_kernel_range_noflush - unmap kernel VM area
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@@ -1448,6 +1449,7 @@ struct vm_struct *get_vm_area(unsigned l
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NUMA_NO_NODE, GFP_KERNEL,
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__builtin_return_address(0));
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}
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+EXPORT_SYMBOL_GPL(get_vm_area);
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struct vm_struct *get_vm_area_caller(unsigned long size, unsigned long flags,
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const void *caller)
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--- a/security/security.c
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+++ b/security/security.c
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@@ -231,24 +231,28 @@ int security_binder_set_context_mgr(stru
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{
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return call_int_hook(binder_set_context_mgr, 0, mgr);
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}
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+EXPORT_SYMBOL_GPL(security_binder_set_context_mgr);
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int security_binder_transaction(struct task_struct *from,
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struct task_struct *to)
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{
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return call_int_hook(binder_transaction, 0, from, to);
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}
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+EXPORT_SYMBOL_GPL(security_binder_transaction);
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int security_binder_transfer_binder(struct task_struct *from,
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struct task_struct *to)
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{
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return call_int_hook(binder_transfer_binder, 0, from, to);
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}
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+EXPORT_SYMBOL_GPL(security_binder_transfer_binder);
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int security_binder_transfer_file(struct task_struct *from,
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struct task_struct *to, struct file *file)
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{
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return call_int_hook(binder_transfer_file, 0, from, to, file);
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}
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+EXPORT_SYMBOL_GPL(security_binder_transfer_file);
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int security_ptrace_access_check(struct task_struct *child, unsigned int mode)
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{
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--- a/kernel/sched/core.c
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+++ b/kernel/sched/core.c
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@@ -3976,6 +3976,7 @@ int can_nice(const struct task_struct *p
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return (nice_rlim <= task_rlimit(p, RLIMIT_NICE) ||
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capable(CAP_SYS_NICE));
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}
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+EXPORT_SYMBOL_GPL(can_nice);
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#ifdef __ARCH_WANT_SYS_NICE
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@ -12,6 +12,7 @@ debian/modpost-symbol-prefix.patch
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debian/tools-perf-version.patch
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debian/tools-perf-version.patch
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debian/tools-perf-install.patch
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debian/tools-perf-install.patch
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debian/wireless-add-debian-wireless-regdb-certificates.patch
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debian/wireless-add-debian-wireless-regdb-certificates.patch
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debian/export-symbols-needed-by-android-drivers.patch
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debian/android-enable-building-ashmem-and-binder-as-modules.patch
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debian/android-enable-building-ashmem-and-binder-as-modules.patch
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# Fixes/improvements to firmware loading
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# Fixes/improvements to firmware loading
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