Unverified Commit 2a8986fc authored by Leonardo Bras's avatar Leonardo Bras Committed by Palmer Dabbelt
Browse files

riscv: Introduce set_compat_task() in asm/compat.h 



In order to have all task compat bit access directly in compat.h, introduce
set_compat_task() to set/reset those when needed.

Also, since it's only used on an if/else scenario, simplify the macro using
it.

Signed-off-by: default avatarLeonardo Bras <leobras@redhat.com>
Reviewed-by: default avatarGuo Ren <guoren@kernel.org>
Link: https://lore.kernel.org/r/20240103160024.70305-7-leobras@redhat.com


Signed-off-by: default avatarPalmer Dabbelt <palmer@rivosinc.com>
parent 5917ea17

arch/riscv/include/asm/compat.h

+8 −0
Original line number Diff line number Diff line
@@ -28,6 +28,14 @@ static inline int is_compat_thread(struct thread_info *thread) 
	return test_ti_thread_flag(thread, TIF_32BIT);

}



static inline void set_compat_task(bool is_compat)

{

	if (is_compat)

		set_thread_flag(TIF_32BIT);

	else

		clear_thread_flag(TIF_32BIT);

}



struct compat_user_regs_struct {

	compat_ulong_t pc;

	compat_ulong_t ra;

arch/riscv/include/asm/elf.h

+1 −4
Original line number Diff line number Diff line
@@ -135,10 +135,7 @@ do { \ 
#ifdef CONFIG_COMPAT



#define SET_PERSONALITY(ex)					\

do {    if ((ex).e_ident[EI_CLASS] == ELFCLASS32)		\

		set_thread_flag(TIF_32BIT);			\

	else							\

		clear_thread_flag(TIF_32BIT);			\

do {	set_compat_task((ex).e_ident[EI_CLASS] == ELFCLASS32);	\

	if (personality(current->personality) != PER_LINUX32)	\

		set_personality(PER_LINUX |			\

			(current->personality & (~PER_MASK)));	\