From cf873edf4227be439a9ffa5abb3da61ff1fd6527 Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Fri, 21 Sep 2012 10:34:21 -0700 Subject: [PATCH] tcg-sparc: Assume v9 cpu always, i.e. force v8plus in 32-bit mode. Current code doesn't actually work in 32-bit mode at all. Since no one really noticed, drop the complication of v7 and v8 cpus. Eliminate the --sparc_cpu configure option and standardize macro testing on TCG_TARGET_REG_BITS / HOST_LONG_BITS Signed-off-by: Richard Henderson Signed-off-by: Michael Roth --- configure | 40 ++++------------------------------------ disas.c | 2 -- exec.c | 6 +++--- qemu-timer.h | 8 +++++--- tcg/sparc/tcg-target.c | 20 +++++--------------- tcg/sparc/tcg-target.h | 7 ++++--- tcg/tcg.c | 3 ++- 7 files changed, 23 insertions(+), 63 deletions(-) diff --git a/configure b/configure index 816f0f9..0590f16 100755 --- a/configure +++ b/configure @@ -111,7 +111,6 @@ source_path=`dirname "$0"` cpu="" interp_prefix="/usr/gnemul/qemu-%M" static="no" -sparc_cpu="" cross_prefix="" audio_drv_list="" audio_card_list="ac97 es1370 sb16 hda" @@ -249,21 +248,6 @@ for opt do ;; --disable-debug-info) debug_info="no" ;; - --sparc_cpu=*) - sparc_cpu="$optarg" - case $sparc_cpu in - v7|v8|v8plus|v8plusa) - cpu="sparc" - ;; - v9) - cpu="sparc64" - ;; - *) - echo "undefined SPARC architecture. Exiting"; - exit 1 - ;; - esac - ;; esac done # OS specific @@ -351,8 +335,6 @@ elif check_define __i386__ ; then elif check_define __x86_64__ ; then cpu="x86_64" elif check_define __sparc__ ; then - # We can't check for 64 bit (when gcc is biarch) or V8PLUSA - # They must be specified using --sparc_cpu if check_define __arch64__ ; then cpu="sparc64" else @@ -798,8 +780,6 @@ for opt do ;; --enable-uname-release=*) uname_release="$optarg" ;; - --sparc_cpu=*) - ;; --enable-werror) werror="yes" ;; --disable-werror) werror="no" @@ -883,31 +863,19 @@ for opt do esac done -# -# If cpu ~= sparc and sparc_cpu hasn't been defined, plug in the right -# QEMU_CFLAGS/LDFLAGS (assume sparc_v8plus for 32-bit and sparc_v9 for 64-bit) -# host_guest_base="no" case "$cpu" in - sparc) case $sparc_cpu in - v7|v8) - QEMU_CFLAGS="-mcpu=${sparc_cpu} -D__sparc_${sparc_cpu}__ $QEMU_CFLAGS" - ;; - v8plus|v8plusa) - QEMU_CFLAGS="-mcpu=ultrasparc -D__sparc_${sparc_cpu}__ $QEMU_CFLAGS" - ;; - *) # sparc_cpu not defined in the command line - QEMU_CFLAGS="-mcpu=ultrasparc -D__sparc_v8plus__ $QEMU_CFLAGS" - esac + sparc) LDFLAGS="-m32 $LDFLAGS" - QEMU_CFLAGS="-m32 -ffixed-g2 -ffixed-g3 $QEMU_CFLAGS" + QEMU_CFLAGS="-m32 -mcpu=ultrasparc $QEMU_CFLAGS" + QEMU_CFLAGS="-ffixed-g2 -ffixed-g3 $QEMU_CFLAGS" if test "$solaris" = "no" ; then QEMU_CFLAGS="-ffixed-g1 -ffixed-g6 $QEMU_CFLAGS" fi ;; sparc64) - QEMU_CFLAGS="-m64 -mcpu=ultrasparc -D__sparc_v9__ $QEMU_CFLAGS" LDFLAGS="-m64 $LDFLAGS" + QEMU_CFLAGS="-m64 -mcpu=ultrasparc $QEMU_CFLAGS" QEMU_CFLAGS="-ffixed-g5 -ffixed-g6 -ffixed-g7 $QEMU_CFLAGS" if test "$solaris" != "no" ; then QEMU_CFLAGS="-ffixed-g1 $QEMU_CFLAGS" diff --git a/disas.c b/disas.c index 7b2acc9..b801c8f 100644 --- a/disas.c +++ b/disas.c @@ -316,9 +316,7 @@ void disas(FILE *out, void *code, unsigned long size) print_insn = print_insn_alpha; #elif defined(__sparc__) print_insn = print_insn_sparc; -#if defined(__sparc_v8plus__) || defined(__sparc_v8plusa__) || defined(__sparc_v9__) disasm_info.mach = bfd_mach_sparc_v9b; -#endif #elif defined(__arm__) print_insn = print_insn_arm; #elif defined(__MIPSEB__) diff --git a/exec.c b/exec.c index 871a68a..ad175db 100644 --- a/exec.c +++ b/exec.c @@ -86,7 +86,7 @@ static int nb_tbs; /* any access to the tbs or the page table must use this lock */ spinlock_t tb_lock = SPIN_LOCK_UNLOCKED; -#if defined(__arm__) || defined(__sparc_v9__) +#if defined(__arm__) || defined(__sparc__) /* The prologue must be reachable with a direct jump. ARM and Sparc64 have limited branch ranges (possibly also PPC) so place it in a section close to code segment. */ @@ -541,7 +541,7 @@ static void code_gen_alloc(unsigned long tb_size) /* Cannot map more than that */ if (code_gen_buffer_size > (800 * 1024 * 1024)) code_gen_buffer_size = (800 * 1024 * 1024); -#elif defined(__sparc_v9__) +#elif defined(__sparc__) && HOST_LONG_BITS == 64 // Map the buffer below 2G, so we can use direct calls and branches start = (void *) 0x40000000UL; if (code_gen_buffer_size > (512 * 1024 * 1024)) @@ -581,7 +581,7 @@ static void code_gen_alloc(unsigned long tb_size) /* Cannot map more than that */ if (code_gen_buffer_size > (800 * 1024 * 1024)) code_gen_buffer_size = (800 * 1024 * 1024); -#elif defined(__sparc_v9__) +#elif defined(__sparc__) && HOST_LONG_BITS == 64 // Map the buffer below 2G, so we can use direct calls and branches addr = (void *) 0x40000000UL; if (code_gen_buffer_size > (512 * 1024 * 1024)) { diff --git a/qemu-timer.h b/qemu-timer.h index f8af595..da7e97c 100644 --- a/qemu-timer.h +++ b/qemu-timer.h @@ -218,7 +218,7 @@ static inline int64_t cpu_get_real_ticks(void) return val; } -#elif defined(__sparc_v8plus__) || defined(__sparc_v8plusa__) || defined(__sparc_v9__) +#elif defined(__sparc__) static inline int64_t cpu_get_real_ticks (void) { @@ -227,6 +227,8 @@ static inline int64_t cpu_get_real_ticks (void) asm volatile("rd %%tick,%0" : "=r"(rval)); return rval; #else + /* We need an %o or %g register for this. For recent enough gcc + there is an "h" constraint for that. Don't bother with that. */ union { uint64_t i64; struct { @@ -234,8 +236,8 @@ static inline int64_t cpu_get_real_ticks (void) uint32_t low; } i32; } rval; - asm volatile("rd %%tick,%1; srlx %1,32,%0" - : "=r"(rval.i32.high), "=r"(rval.i32.low)); + asm volatile("rd %%tick,%%g1; srlx %%g1,32,%0; mov %%g1,%1" + : "=r"(rval.i32.high), "=r"(rval.i32.low) : : "g1"); return rval.i64; #endif } diff --git a/tcg/sparc/tcg-target.c b/tcg/sparc/tcg-target.c index 0a19313..23c2fda 100644 --- a/tcg/sparc/tcg-target.c +++ b/tcg/sparc/tcg-target.c @@ -621,18 +621,10 @@ static void tcg_out_setcond_i32(TCGContext *s, TCGCond cond, TCGArg ret, default: tcg_out_cmp(s, c1, c2, c2const); -#if defined(__sparc_v9__) || defined(__sparc_v8plus__) tcg_out_movi_imm13(s, ret, 0); - tcg_out32 (s, ARITH_MOVCC | INSN_RD(ret) - | INSN_RS1(tcg_cond_to_bcond[cond]) - | MOVCC_ICC | INSN_IMM11(1)); -#else - t = gen_new_label(); - tcg_out_branch_i32(s, INSN_COND(tcg_cond_to_bcond[cond], 1), t); - tcg_out_movi_imm13(s, ret, 1); - tcg_out_movi_imm13(s, ret, 0); - tcg_out_label(s, t, s->code_ptr); -#endif + tcg_out32(s, ARITH_MOVCC | INSN_RD(ret) + | INSN_RS1(tcg_cond_to_bcond[cond]) + | MOVCC_ICC | INSN_IMM11(1)); return; } @@ -742,7 +734,7 @@ static const void * const qemu_st_helpers[4] = { #endif #endif -#ifdef __arch64__ +#if TCG_TARGET_REG_BITS == 64 #define HOST_LD_OP LDX #define HOST_ST_OP STX #define HOST_SLL_OP SHIFT_SLLX @@ -1600,11 +1592,9 @@ static void tcg_target_init(TCGContext *s) #if TCG_TARGET_REG_BITS == 64 # define ELF_HOST_MACHINE EM_SPARCV9 -#elif defined(__sparc_v8plus__) +#else # define ELF_HOST_MACHINE EM_SPARC32PLUS # define ELF_HOST_FLAGS EF_SPARC_32PLUS -#else -# define ELF_HOST_MACHINE EM_SPARC #endif typedef struct { diff --git a/tcg/sparc/tcg-target.h b/tcg/sparc/tcg-target.h index d762574..adca1d2 100644 --- a/tcg/sparc/tcg-target.h +++ b/tcg/sparc/tcg-target.h @@ -67,7 +67,8 @@ typedef enum { /* used for function call generation */ #define TCG_REG_CALL_STACK TCG_REG_I6 -#ifdef __arch64__ + +#if TCG_TARGET_REG_BITS == 64 // Reserve space for AREG0 #define TCG_TARGET_STACK_MINFRAME (176 + 4 * (int)sizeof(long) + \ TCG_STATIC_CALL_ARGS_SIZE) @@ -81,7 +82,7 @@ typedef enum { #define TCG_TARGET_STACK_ALIGN 8 #endif -#ifdef __arch64__ +#if TCG_TARGET_REG_BITS == 64 #define TCG_TARGET_EXTEND_ARGS 1 #endif @@ -129,7 +130,7 @@ typedef enum { #ifdef CONFIG_SOLARIS #define TCG_AREG0 TCG_REG_G2 -#elif defined(__sparc_v9__) +#elif HOST_LONG_BITS == 64 #define TCG_AREG0 TCG_REG_G5 #else #define TCG_AREG0 TCG_REG_G6 diff --git a/tcg/tcg.c b/tcg/tcg.c index 93421cd..16c4e1d 100644 --- a/tcg/tcg.c +++ b/tcg/tcg.c @@ -1450,7 +1450,8 @@ static void temp_allocate_frame(TCGContext *s, int temp) { TCGTemp *ts; ts = &s->temps[temp]; -#ifndef __sparc_v9__ /* Sparc64 stack is accessed with offset of 2047 */ +#if !(defined(__sparc__) && TCG_TARGET_REG_BITS == 64) + /* Sparc64 stack is accessed with offset of 2047 */ s->current_frame_offset = (s->current_frame_offset + (tcg_target_long)sizeof(tcg_target_long) - 1) & ~(sizeof(tcg_target_long) - 1);