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X-Received-From: 2607:f8b0:4864:20::733 Subject: [Qemu-devel] [PATCH v2 1/3] cputlb: Disable __always_inline__ without optimization X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: tony.nguyen@bt.com, mark.cave-ayland@ilande.co.uk Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" This forced inlining can result in missing symbols, which makes a debugging build harder to follow. Reported-by: Peter Maydell Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson --- include/qemu/compiler.h | 11 +++++++++++ accel/tcg/cputlb.c | 4 ++-- 2 files changed, 13 insertions(+), 2 deletions(-) diff --git a/include/qemu/compiler.h b/include/qemu/compiler.h index 09fc44cca4..d6d400c523 100644 --- a/include/qemu/compiler.h +++ b/include/qemu/compiler.h @@ -170,6 +170,17 @@ # define QEMU_NONSTRING #endif +/* + * Forced inlining may be desired to encourage constant propagation + * of function parameters. However, it can also make debugging harder, + * so disable it for a non-optimizing build. + */ +#if defined(__OPTIMIZE__) && __has_attribute(always_inline) +#define QEMU_ALWAYS_INLINE __attribute__((always_inline)) +#else +#define QEMU_ALWAYS_INLINE +#endif + /* Implement C11 _Generic via GCC builtins. Example: * * QEMU_GENERIC(x, (float, sinf), (long double, sinl), sin) (x) diff --git a/accel/tcg/cputlb.c b/accel/tcg/cputlb.c index abae79650c..2222b87764 100644 --- a/accel/tcg/cputlb.c +++ b/accel/tcg/cputlb.c @@ -1281,7 +1281,7 @@ static void *atomic_mmu_lookup(CPUArchState *env, target_ulong addr, typedef uint64_t FullLoadHelper(CPUArchState *env, target_ulong addr, TCGMemOpIdx oi, uintptr_t retaddr); -static inline uint64_t __attribute__((always_inline)) +static inline uint64_t QEMU_ALWAYS_INLINE load_helper(CPUArchState *env, target_ulong addr, TCGMemOpIdx oi, uintptr_t retaddr, MemOp op, bool code_read, FullLoadHelper *full_load) @@ -1530,7 +1530,7 @@ tcg_target_ulong helper_be_ldsl_mmu(CPUArchState *env, target_ulong addr, * Store Helpers */ -static inline void __attribute__((always_inline)) +static inline void QEMU_ALWAYS_INLINE store_helper(CPUArchState *env, target_ulong addr, uint64_t val, TCGMemOpIdx oi, uintptr_t retaddr, MemOp op) { -- 2.17.1