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um: Always inline stub functions
The stub executable page is remapped to a different location in the userland process. As these functions may be used by the stub, they really need to be always inlined rather than permitting the compiler to emit a function. Signed-off-by: Benjamin Berg <benjamin@sipsolutions.net> Signed-off-by: Richard Weinberger <richard@nod.at>
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@ -12,7 +12,7 @@
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#define STUB_MMAP_NR __NR_mmap2
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#define MMAP_OFFSET(o) ((o) >> UM_KERN_PAGE_SHIFT)
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static inline long stub_syscall0(long syscall)
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static __always_inline long stub_syscall0(long syscall)
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{
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long ret;
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@ -21,7 +21,7 @@ static inline long stub_syscall0(long syscall)
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return ret;
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}
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static inline long stub_syscall1(long syscall, long arg1)
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static __always_inline long stub_syscall1(long syscall, long arg1)
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{
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long ret;
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@ -30,7 +30,7 @@ static inline long stub_syscall1(long syscall, long arg1)
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return ret;
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}
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static inline long stub_syscall2(long syscall, long arg1, long arg2)
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static __always_inline long stub_syscall2(long syscall, long arg1, long arg2)
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{
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long ret;
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@ -40,7 +40,8 @@ static inline long stub_syscall2(long syscall, long arg1, long arg2)
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return ret;
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}
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static inline long stub_syscall3(long syscall, long arg1, long arg2, long arg3)
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static __always_inline long stub_syscall3(long syscall, long arg1, long arg2,
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long arg3)
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{
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long ret;
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@ -50,8 +51,8 @@ static inline long stub_syscall3(long syscall, long arg1, long arg2, long arg3)
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return ret;
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}
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static inline long stub_syscall4(long syscall, long arg1, long arg2, long arg3,
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long arg4)
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static __always_inline long stub_syscall4(long syscall, long arg1, long arg2,
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long arg3, long arg4)
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{
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long ret;
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@ -61,8 +62,8 @@ static inline long stub_syscall4(long syscall, long arg1, long arg2, long arg3,
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return ret;
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}
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static inline long stub_syscall5(long syscall, long arg1, long arg2, long arg3,
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long arg4, long arg5)
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static __always_inline long stub_syscall5(long syscall, long arg1, long arg2,
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long arg3, long arg4, long arg5)
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{
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long ret;
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@ -72,12 +73,12 @@ static inline long stub_syscall5(long syscall, long arg1, long arg2, long arg3,
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return ret;
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}
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static inline void trap_myself(void)
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static __always_inline void trap_myself(void)
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{
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__asm("int3");
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}
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static inline void remap_stack_and_trap(void)
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static __always_inline void remap_stack_and_trap(void)
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{
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__asm__ volatile (
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"movl %%esp,%%ebx ;"
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@ -16,7 +16,7 @@
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#define __syscall_clobber "r11","rcx","memory"
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#define __syscall "syscall"
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static inline long stub_syscall0(long syscall)
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static __always_inline long stub_syscall0(long syscall)
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{
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long ret;
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@ -27,7 +27,7 @@ static inline long stub_syscall0(long syscall)
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return ret;
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}
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static inline long stub_syscall2(long syscall, long arg1, long arg2)
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static __always_inline long stub_syscall2(long syscall, long arg1, long arg2)
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{
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long ret;
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@ -38,7 +38,8 @@ static inline long stub_syscall2(long syscall, long arg1, long arg2)
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return ret;
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}
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static inline long stub_syscall3(long syscall, long arg1, long arg2, long arg3)
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static __always_inline long stub_syscall3(long syscall, long arg1, long arg2,
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long arg3)
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{
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long ret;
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@ -50,7 +51,7 @@ static inline long stub_syscall3(long syscall, long arg1, long arg2, long arg3)
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return ret;
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}
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static inline long stub_syscall4(long syscall, long arg1, long arg2, long arg3,
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static __always_inline long stub_syscall4(long syscall, long arg1, long arg2, long arg3,
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long arg4)
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{
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long ret;
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@ -64,8 +65,8 @@ static inline long stub_syscall4(long syscall, long arg1, long arg2, long arg3,
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return ret;
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}
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static inline long stub_syscall5(long syscall, long arg1, long arg2, long arg3,
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long arg4, long arg5)
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static __always_inline long stub_syscall5(long syscall, long arg1, long arg2,
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long arg3, long arg4, long arg5)
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{
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long ret;
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@ -78,12 +79,12 @@ static inline long stub_syscall5(long syscall, long arg1, long arg2, long arg3,
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return ret;
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}
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static inline void trap_myself(void)
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static __always_inline void trap_myself(void)
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{
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__asm("int3");
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}
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static inline void remap_stack_and_trap(void)
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static __always_inline void remap_stack_and_trap(void)
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{
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__asm__ volatile (
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"movq %0,%%rax ;"
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