From 2f149c759ff352399e7a0eca25a62388822d7d13 Mon Sep 17 00:00:00 2001 From: Song Gao Date: Fri, 5 Aug 2022 11:35:23 +0800 Subject: target/loongarch: Update gdb_set_fpu() and gdb_get_fpu() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit GDB LoongArch fpu use fcc register, update gdb_set_fpu() and gdb_get_fpu() to match it. Signed-off-by: Song Gao Reviewed-by: Richard Henderson Acked-by: Alex Bennée Message-Id: <20220805033523.1416837-6-gaosong@loongson.cn> --- linux-user/loongarch64/signal.c | 24 ++---------------------- 1 file changed, 2 insertions(+), 22 deletions(-) (limited to 'linux-user') diff --git a/linux-user/loongarch64/signal.c b/linux-user/loongarch64/signal.c index 65fd5f3..7c7afb6 100644 --- a/linux-user/loongarch64/signal.c +++ b/linux-user/loongarch64/signal.c @@ -71,26 +71,6 @@ struct extctx_layout { struct ctx_layout end; }; -/* The kernel's sc_save_fcc macro is a sequence of MOVCF2GR+BSTRINS. */ -static uint64_t read_all_fcc(CPULoongArchState *env) -{ - uint64_t ret = 0; - - for (int i = 0; i < 8; ++i) { - ret |= (uint64_t)env->cf[i] << (i * 8); - } - - return ret; -} - -/* The kernel's sc_restore_fcc macro is a sequence of BSTRPICK+MOVGR2CF. */ -static void write_all_fcc(CPULoongArchState *env, uint64_t val) -{ - for (int i = 0; i < 8; ++i) { - env->cf[i] = (val >> (i * 8)) & 1; - } -} - static abi_ptr extframe_alloc(struct extctx_layout *extctx, struct ctx_layout *sctx, unsigned size, unsigned align, abi_ptr orig_sp) @@ -150,7 +130,7 @@ static void setup_sigframe(CPULoongArchState *env, for (i = 0; i < 32; ++i) { __put_user(env->fpr[i], &fpu_ctx->regs[i]); } - __put_user(read_all_fcc(env), &fpu_ctx->fcc); + __put_user(read_fcc(env), &fpu_ctx->fcc); __put_user(env->fcsr0, &fpu_ctx->fcsr); /* @@ -216,7 +196,7 @@ static void restore_sigframe(CPULoongArchState *env, __get_user(env->fpr[i], &fpu_ctx->regs[i]); } __get_user(fcc, &fpu_ctx->fcc); - write_all_fcc(env, fcc); + write_fcc(env, fcc); __get_user(env->fcsr0, &fpu_ctx->fcsr); restore_fp_status(env); } -- cgit v1.1