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[174.21.150.71]) by smtp.gmail.com with ESMTPSA id j17sm16158689pfh.183.2021.02.07.18.38.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 07 Feb 2021 18:38:39 -0800 (PST) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v3 37/70] tcg: Build ffi data structures for helpers Date: Sun, 7 Feb 2021 18:37:19 -0800 Message-Id: <20210208023752.270606-38-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210208023752.270606-1-richard.henderson@linaro.org> References: <20210208023752.270606-1-richard.henderson@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::102a; envelope-from=richard.henderson@linaro.org; helo=mail-pj1-x102a.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action 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: sw@weilnetz.de Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" We will shortly use libffi for tci, as that is the only portable way of calling arbitrary functions. Signed-off-by: Richard Henderson --- meson.build | 9 +- include/exec/helper-ffi.h | 115 +++++++++++++++++++++++++ include/exec/helper-tcg.h | 24 ++++-- target/hppa/helper.h | 2 + target/i386/ops_sse_header.h | 6 ++ target/m68k/helper.h | 1 + target/ppc/helper.h | 3 + tcg/tcg.c | 20 +++++ tests/docker/dockerfiles/fedora.docker | 1 + 9 files changed, 172 insertions(+), 9 deletions(-) create mode 100644 include/exec/helper-ffi.h diff --git a/meson.build b/meson.build index 475d8a94ea..fc08f15a00 100644 --- a/meson.build +++ b/meson.build @@ -1901,7 +1901,14 @@ specific_ss.add(when: 'CONFIG_TCG', if_true: files( 'tcg/tcg-op.c', 'tcg/tcg.c', )) -specific_ss.add(when: 'CONFIG_TCG_INTERPRETER', if_true: files('tcg/tci.c')) + +if get_option('tcg_interpreter') + libffi = dependency('libffi', version: '>=3.0', + static: enable_static, method: 'pkg-config', + required: true) + specific_ss.add(libffi) + specific_ss.add(files('tcg/tci.c')) +endif subdir('backends') subdir('disas') diff --git a/include/exec/helper-ffi.h b/include/exec/helper-ffi.h new file mode 100644 index 0000000000..3af1065af3 --- /dev/null +++ b/include/exec/helper-ffi.h @@ -0,0 +1,115 @@ +/* + * Helper file for declaring TCG helper functions. + * This one defines data structures private to tcg.c. + */ + +#ifndef HELPER_FFI_H +#define HELPER_FFI_H 1 + +#include "exec/helper-head.h" + +#define dh_ffitype_i32 &ffi_type_uint32 +#define dh_ffitype_s32 &ffi_type_sint32 +#define dh_ffitype_int &ffi_type_sint +#define dh_ffitype_i64 &ffi_type_uint64 +#define dh_ffitype_s64 &ffi_type_sint64 +#define dh_ffitype_f16 &ffi_type_uint32 +#define dh_ffitype_f32 &ffi_type_uint32 +#define dh_ffitype_f64 &ffi_type_uint64 +#ifdef TARGET_LONG_BITS +# if TARGET_LONG_BITS == 32 +# define dh_ffitype_tl &ffi_type_uint32 +# else +# define dh_ffitype_tl &ffi_type_uint64 +# endif +#endif +#define dh_ffitype_ptr &ffi_type_pointer +#define dh_ffitype_cptr &ffi_type_pointer +#define dh_ffitype_void &ffi_type_void +#define dh_ffitype_noreturn &ffi_type_void +#define dh_ffitype_env &ffi_type_pointer +#define dh_ffitype(t) glue(dh_ffitype_, t) + +#define DEF_HELPER_FLAGS_0(NAME, FLAGS, ret) \ + static ffi_cif glue(cif_,NAME) = { \ + .rtype = dh_ffitype(ret), .nargs = 0, \ + }; + +#define DEF_HELPER_FLAGS_1(NAME, FLAGS, ret, t1) \ + static ffi_type *glue(cif_args_,NAME)[1] = { dh_ffitype(t1) }; \ + static ffi_cif glue(cif_,NAME) = { \ + .rtype = dh_ffitype(ret), .nargs = 1, \ + .arg_types = glue(cif_args_,NAME), \ + }; + +#define DEF_HELPER_FLAGS_2(NAME, FLAGS, ret, t1, t2) \ + static ffi_type *glue(cif_args_,NAME)[2] = { \ + dh_ffitype(t1), dh_ffitype(t2) \ + }; \ + static ffi_cif glue(cif_,NAME) = { \ + .rtype = dh_ffitype(ret), .nargs = 2, \ + .arg_types = glue(cif_args_,NAME), \ + }; + +#define DEF_HELPER_FLAGS_3(NAME, FLAGS, ret, t1, t2, t3) \ + static ffi_type *glue(cif_args_,NAME)[3] = { \ + dh_ffitype(t1), dh_ffitype(t2), dh_ffitype(t3) \ + }; \ + static ffi_cif glue(cif_,NAME) = { \ + .rtype = dh_ffitype(ret), .nargs = 3, \ + .arg_types = glue(cif_args_,NAME), \ + }; + +#define DEF_HELPER_FLAGS_4(NAME, FLAGS, ret, t1, t2, t3, t4) \ + static ffi_type *glue(cif_args_,NAME)[4] = { \ + dh_ffitype(t1), dh_ffitype(t2), dh_ffitype(t3), dh_ffitype(t4) \ + }; \ + static ffi_cif glue(cif_,NAME) = { \ + .rtype = dh_ffitype(ret), .nargs = 4, \ + .arg_types = glue(cif_args_,NAME), \ + }; + +#define DEF_HELPER_FLAGS_5(NAME, FLAGS, ret, t1, t2, t3, t4, t5) \ + static ffi_type *glue(cif_args_,NAME)[5] = { \ + dh_ffitype(t1), dh_ffitype(t2), dh_ffitype(t3), \ + dh_ffitype(t4), dh_ffitype(t5) \ + }; \ + static ffi_cif glue(cif_,NAME) = { \ + .rtype = dh_ffitype(ret), .nargs = 5, \ + .arg_types = glue(cif_args_,NAME), \ + }; + +#define DEF_HELPER_FLAGS_6(NAME, FLAGS, ret, t1, t2, t3, t4, t5, t6) \ + static ffi_type *glue(cif_args_,NAME)[6] = { \ + dh_ffitype(t1), dh_ffitype(t2), dh_ffitype(t3), \ + dh_ffitype(t4), dh_ffitype(t5), dh_ffitype(t6) \ + }; \ + static ffi_cif glue(cif_,NAME) = { \ + .rtype = dh_ffitype(ret), .nargs = 6, \ + .arg_types = glue(cif_args_,NAME), \ + }; + +#define DEF_HELPER_FLAGS_7(NAME, FLAGS, ret, t1, t2, t3, t4, t5, t6, t7) \ + static ffi_type *glue(cif_args_,NAME)[7] = { \ + dh_ffitype(t1), dh_ffitype(t2), dh_ffitype(t3), \ + dh_ffitype(t4), dh_ffitype(t5), dh_ffitype(t6), dh_ffitype(t7) \ + }; \ + static ffi_cif glue(cif_,NAME) = { \ + .rtype = dh_ffitype(ret), .nargs = 7, \ + .arg_types = glue(cif_args_,NAME), \ + }; + +#include "helper.h" +#include "trace/generated-helpers.h" +#include "tcg-runtime.h" + +#undef DEF_HELPER_FLAGS_0 +#undef DEF_HELPER_FLAGS_1 +#undef DEF_HELPER_FLAGS_2 +#undef DEF_HELPER_FLAGS_3 +#undef DEF_HELPER_FLAGS_4 +#undef DEF_HELPER_FLAGS_5 +#undef DEF_HELPER_FLAGS_6 +#undef DEF_HELPER_FLAGS_7 + +#endif /* HELPER_FFI_H */ diff --git a/include/exec/helper-tcg.h b/include/exec/helper-tcg.h index 27870509a2..a71b848576 100644 --- a/include/exec/helper-tcg.h +++ b/include/exec/helper-tcg.h @@ -10,50 +10,57 @@ to get all the macros expanded first. */ #define str(s) #s +#ifdef CONFIG_TCG_INTERPRETER +# define DO_CIF(NAME) .cif = &cif_##NAME, +#else +# define DO_CIF(NAME) +#endif + #define DEF_HELPER_FLAGS_0(NAME, FLAGS, ret) \ - { .func = HELPER(NAME), .name = str(NAME), \ + { .func = HELPER(NAME), DO_CIF(NAME) .name = str(NAME), \ .flags = FLAGS | dh_callflag(ret), \ .sizemask = dh_sizemask(ret, 0) }, #define DEF_HELPER_FLAGS_1(NAME, FLAGS, ret, t1) \ - { .func = HELPER(NAME), .name = str(NAME), \ + { .func = HELPER(NAME), DO_CIF(NAME) .name = str(NAME), \ .flags = FLAGS | dh_callflag(ret), \ .sizemask = dh_sizemask(ret, 0) | dh_sizemask(t1, 1) }, #define DEF_HELPER_FLAGS_2(NAME, FLAGS, ret, t1, t2) \ - { .func = HELPER(NAME), .name = str(NAME), \ + { .func = HELPER(NAME), DO_CIF(NAME) .name = str(NAME), \ .flags = FLAGS | dh_callflag(ret), \ .sizemask = dh_sizemask(ret, 0) | dh_sizemask(t1, 1) \ | dh_sizemask(t2, 2) }, #define DEF_HELPER_FLAGS_3(NAME, FLAGS, ret, t1, t2, t3) \ - { .func = HELPER(NAME), .name = str(NAME), \ + { .func = HELPER(NAME), DO_CIF(NAME) .name = str(NAME), \ .flags = FLAGS | dh_callflag(ret), \ .sizemask = dh_sizemask(ret, 0) | dh_sizemask(t1, 1) \ | dh_sizemask(t2, 2) | dh_sizemask(t3, 3) }, #define DEF_HELPER_FLAGS_4(NAME, FLAGS, ret, t1, t2, t3, t4) \ - { .func = HELPER(NAME), .name = str(NAME), \ + { .func = HELPER(NAME), DO_CIF(NAME) .name = str(NAME), \ .flags = FLAGS | dh_callflag(ret), \ .sizemask = dh_sizemask(ret, 0) | dh_sizemask(t1, 1) \ | dh_sizemask(t2, 2) | dh_sizemask(t3, 3) | dh_sizemask(t4, 4) }, #define DEF_HELPER_FLAGS_5(NAME, FLAGS, ret, t1, t2, t3, t4, t5) \ - { .func = HELPER(NAME), .name = str(NAME), \ + { .func = HELPER(NAME), DO_CIF(NAME) .name = str(NAME), \ .flags = FLAGS | dh_callflag(ret), \ .sizemask = dh_sizemask(ret, 0) | dh_sizemask(t1, 1) \ | dh_sizemask(t2, 2) | dh_sizemask(t3, 3) | dh_sizemask(t4, 4) \ | dh_sizemask(t5, 5) }, #define DEF_HELPER_FLAGS_6(NAME, FLAGS, ret, t1, t2, t3, t4, t5, t6) \ - { .func = HELPER(NAME), .name = str(NAME), \ + { .func = HELPER(NAME), DO_CIF(NAME) .name = str(NAME), \ .flags = FLAGS | dh_callflag(ret), \ .sizemask = dh_sizemask(ret, 0) | dh_sizemask(t1, 1) \ | dh_sizemask(t2, 2) | dh_sizemask(t3, 3) | dh_sizemask(t4, 4) \ | dh_sizemask(t5, 5) | dh_sizemask(t6, 6) }, #define DEF_HELPER_FLAGS_7(NAME, FLAGS, ret, t1, t2, t3, t4, t5, t6, t7) \ - { .func = HELPER(NAME), .name = str(NAME), .flags = FLAGS, \ + { .func = HELPER(NAME), DO_CIF(NAME) .name = str(NAME), \ + .flags = FLAGS | dh_callflag(ret), \ .sizemask = dh_sizemask(ret, 0) | dh_sizemask(t1, 1) \ | dh_sizemask(t2, 2) | dh_sizemask(t3, 3) | dh_sizemask(t4, 4) \ | dh_sizemask(t5, 5) | dh_sizemask(t6, 6) | dh_sizemask(t7, 7) }, @@ -64,6 +71,7 @@ #include "plugin-helpers.h" #undef str +#undef DO_CIF #undef DEF_HELPER_FLAGS_0 #undef DEF_HELPER_FLAGS_1 #undef DEF_HELPER_FLAGS_2 diff --git a/target/hppa/helper.h b/target/hppa/helper.h index 2d483aab58..35c612f09d 100644 --- a/target/hppa/helper.h +++ b/target/hppa/helper.h @@ -1,9 +1,11 @@ #if TARGET_REGISTER_BITS == 64 # define dh_alias_tr i64 # define dh_is_64bit_tr 1 +# define dh_ffitype_tr dh_ffitype_i64 #else # define dh_alias_tr i32 # define dh_is_64bit_tr 0 +# define dh_ffitype_tr dh_ffitype_i32 #endif #define dh_ctype_tr target_ureg #define dh_is_signed_tr 0 diff --git a/target/i386/ops_sse_header.h b/target/i386/ops_sse_header.h index 6c0c849347..cae50f77eb 100644 --- a/target/i386/ops_sse_header.h +++ b/target/i386/ops_sse_header.h @@ -27,13 +27,19 @@ #define dh_alias_Reg ptr #define dh_alias_ZMMReg ptr #define dh_alias_MMXReg ptr + #define dh_ctype_Reg Reg * #define dh_ctype_ZMMReg ZMMReg * #define dh_ctype_MMXReg MMXReg * + #define dh_is_signed_Reg dh_is_signed_ptr #define dh_is_signed_ZMMReg dh_is_signed_ptr #define dh_is_signed_MMXReg dh_is_signed_ptr +#define dh_ffitype_Reg dh_ffitype_ptr +#define dh_ffitype_ZMMReg dh_ffitype_ptr +#define dh_ffitype_MMXReg dh_ffitype_ptr + DEF_HELPER_3(glue(psrlw, SUFFIX), void, env, Reg, Reg) DEF_HELPER_3(glue(psraw, SUFFIX), void, env, Reg, Reg) DEF_HELPER_3(glue(psllw, SUFFIX), void, env, Reg, Reg) diff --git a/target/m68k/helper.h b/target/m68k/helper.h index 77808497a9..672c99d5de 100644 --- a/target/m68k/helper.h +++ b/target/m68k/helper.h @@ -18,6 +18,7 @@ DEF_HELPER_4(cas2l_parallel, void, env, i32, i32, i32) #define dh_alias_fp ptr #define dh_ctype_fp FPReg * #define dh_is_signed_fp dh_is_signed_ptr +#define dh_ffitype_fp dh_ffitype_ptr DEF_HELPER_3(exts32, void, env, fp, s32) DEF_HELPER_3(extf32, void, env, fp, f32) diff --git a/target/ppc/helper.h b/target/ppc/helper.h index 6a4dccf70c..bbd4700064 100644 --- a/target/ppc/helper.h +++ b/target/ppc/helper.h @@ -108,10 +108,12 @@ DEF_HELPER_FLAGS_1(ftsqrt, TCG_CALL_NO_RWG_SE, i32, i64) #define dh_alias_avr ptr #define dh_ctype_avr ppc_avr_t * #define dh_is_signed_avr dh_is_signed_ptr +#define dh_ffitype_avr dh_ffitype_ptr #define dh_alias_vsr ptr #define dh_ctype_vsr ppc_vsr_t * #define dh_is_signed_vsr dh_is_signed_ptr +#define dh_ffitype_vsr dh_ffitype_ptr DEF_HELPER_3(vavgub, void, avr, avr, avr) DEF_HELPER_3(vavguh, void, avr, avr, avr) @@ -696,6 +698,7 @@ DEF_HELPER_3(store_601_batu, void, env, i32, tl) #define dh_alias_fprp ptr #define dh_ctype_fprp ppc_fprp_t * #define dh_is_signed_fprp dh_is_signed_ptr +#define dh_ffitype_fprp dh_ffitype_ptr DEF_HELPER_4(dadd, void, env, fprp, fprp, fprp) DEF_HELPER_4(daddq, void, env, fprp, fprp, fprp) diff --git a/tcg/tcg.c b/tcg/tcg.c index 2991112829..6382112215 100644 --- a/tcg/tcg.c +++ b/tcg/tcg.c @@ -66,6 +66,10 @@ #include "exec/log.h" #include "sysemu/sysemu.h" +#ifdef CONFIG_TCG_INTERPRETER +#include +#endif + /* Forward declarations for functions declared in tcg-target.c.inc and used here. */ static void tcg_target_init(TCGContext *s); @@ -1082,6 +1086,9 @@ void tcg_pool_reset(TCGContext *s) typedef struct TCGHelperInfo { void *func; +#ifdef CONFIG_TCG_INTERPRETER + ffi_cif *cif; +#endif const char *name; unsigned flags; unsigned sizemask; @@ -1089,6 +1096,10 @@ typedef struct TCGHelperInfo { #include "exec/helper-proto.h" +#ifdef CONFIG_TCG_INTERPRETER +#include "exec/helper-ffi.h" +#endif + static const TCGHelperInfo all_helpers[] = { #include "exec/helper-tcg.h" }; @@ -1136,6 +1147,15 @@ void tcg_context_init(TCGContext *s) (gpointer)&all_helpers[i]); } +#ifdef CONFIG_TCG_INTERPRETER + for (i = 0; i < ARRAY_SIZE(all_helpers); ++i) { + ffi_cif *cif = all_helpers[i].cif; + ffi_status ok = ffi_prep_cif(cif, FFI_DEFAULT_ABI, cif->nargs, + cif->rtype, cif->arg_types); + tcg_debug_assert(ok == FFI_OK); + } +#endif + tcg_target_init(s); process_op_defs(s); diff --git a/tests/docker/dockerfiles/fedora.docker b/tests/docker/dockerfiles/fedora.docker index 0d7602abbe..45fc1a77bd 100644 --- a/tests/docker/dockerfiles/fedora.docker +++ b/tests/docker/dockerfiles/fedora.docker @@ -32,6 +32,7 @@ ENV PACKAGES \ libcurl-devel \ libepoxy-devel \ libfdt-devel \ + libffi-devel \ libiscsi-devel \ libjpeg-devel \ libpmem-devel \