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Ip=[63.35.35.123]; Helo=[64aa7808-outbound-1.mta.getcheckrecipient.com] X-MS-Exchange-CrossTenant-AuthSource: AM4PEPF00027A69.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DB4PR08MB8005 X-Spam-Status: No, score=-12.6 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, FORGED_SPF_HELO, GIT_PATCH_0, KAM_DMARC_NONE, KAM_LOTSOFHASH, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H2, SPF_HELO_PASS, SPF_NONE, TXREP, T_SCC_BODY_TEXT_LINE, UNPARSEABLE_RELAY autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org X-BeenThere: binutils@sourceware.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Binutils mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: binutils-bounces+ouuuleilei=gmail.com@sourceware.org X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1781294387462797896 X-GMAIL-MSGID: 1781294387462797896 Hi, This patch adds support for Guarded control stack data synchronization instruction (GCSB DSYNC). This instruction is allocated to existing HINT space and uses the HINT number 19 and to match this an entry is added to the aarch64_hint_options array. Regression tested for aarch64-none-elf target and found no regressions. Ok for binutils-master? Regards, Srinath. diff --git a/gas/config/tc-aarch64.c b/gas/config/tc-aarch64.c index 6d2040037c3ff2c4c5d1ff967ad3c7222d878c93..1f687fe1ca07d5436602860bbdbc58e1e02f6cc2 100644 --- a/gas/config/tc-aarch64.c +++ b/gas/config/tc-aarch64.c @@ -4417,12 +4417,13 @@ parse_barrier (char **str) return o->value; } -/* Parse an operand for a PSB barrier. Set *HINT_OPT to the hint-option record - return 0 if successful. Otherwise return PARSE_FAIL. */ +/* Parse an option for barrier, bti and guarded control stack data + synchronization instructions. Return true on matching the target + options else return false. */ -static int -parse_barrier_psb (char **str, - const struct aarch64_name_value_pair ** hint_opt) +static bool +parse_hint_opt (const char *name, char **str, + const struct aarch64_name_value_pair ** hint_opt) { char *p, *q; const struct aarch64_name_value_pair *o; @@ -4433,64 +4434,19 @@ parse_barrier_psb (char **str, o = str_hash_find_n (aarch64_hint_opt_hsh, p, q - p); if (!o) - { - set_fatal_syntax_error - ( _("unknown or missing option to PSB/TSB")); - return PARSE_FAIL; - } + return false; - if (o->value != 0x11) - { - /* PSB only accepts option name 'CSYNC'. */ - set_syntax_error - (_("the specified option is not accepted for PSB/TSB")); - return PARSE_FAIL; - } + if ((strcmp ("gcsb", name) == 0 && o->value != HINT_OPD_DSYNC) + || ((strcmp ("psb", name) == 0 || strcmp ("tsb", name) == 0) + && o->value != HINT_OPD_CSYNC) + || ((strcmp ("bti", name) == 0) + && (o->value != HINT_OPD_C && o->value != HINT_OPD_J + && o->value != HINT_OPD_JC))) + return false; *str = q; *hint_opt = o; - return 0; -} - -/* Parse an operand for BTI. Set *HINT_OPT to the hint-option record - return 0 if successful. Otherwise return PARSE_FAIL. */ - -static int -parse_bti_operand (char **str, - const struct aarch64_name_value_pair ** hint_opt) -{ - char *p, *q; - const struct aarch64_name_value_pair *o; - - p = q = *str; - while (ISALPHA (*q)) - q++; - - o = str_hash_find_n (aarch64_hint_opt_hsh, p, q - p); - if (!o) - { - set_fatal_syntax_error - ( _("unknown option to BTI")); - return PARSE_FAIL; - } - - switch (o->value) - { - /* Valid BTI operands. */ - case HINT_OPD_C: - case HINT_OPD_J: - case HINT_OPD_JC: - break; - - default: - set_syntax_error - (_("unknown option to BTI")); - return PARSE_FAIL; - } - - *str = q; - *hint_opt = o; - return 0; + return true; } /* Parse STR for reg of REG_TYPE and following '.' and QUALIFIER. @@ -7777,8 +7733,7 @@ parse_operands (char *str, const aarch64_opcode *opcode) break; case AARCH64_OPND_BARRIER_PSB: - val = parse_barrier_psb (&str, &(info->hint_option)); - if (val == PARSE_FAIL) + if (!parse_hint_opt (opcode->name, &str, &(info->hint_option))) goto failure; break; @@ -7833,9 +7788,13 @@ parse_operands (char *str, const aarch64_opcode *opcode) info->qualifier = vectype_to_qualifier (&vectype); break; + case AARCH64_OPND_BARRIER_GCSB: + if (!parse_hint_opt (opcode->name, &str, &(info->hint_option))) + goto failure; + break; + case AARCH64_OPND_BTI_TARGET: - val = parse_bti_operand (&str, &(info->hint_option)); - if (val == PARSE_FAIL) + if (!parse_hint_opt (opcode->name, &str, &(info->hint_option))) goto failure; break; diff --git a/gas/testsuite/gas/aarch64/gcs-1.d b/gas/testsuite/gas/aarch64/gcs-1.d index 51f9dd6afc5cca1e69ad408849d71a6c7e3f09cf..09fa418e5eab6f27004dcdfa43486ecaa92afec5 100644 --- a/gas/testsuite/gas/aarch64/gcs-1.d +++ b/gas/testsuite/gas/aarch64/gcs-1.d @@ -12,6 +12,7 @@ .*: d50877bf gcspopcx .*: d50877df gcspopx .*: d52b773f gcspopm +.*: d503227f gcsb dsync .*: d50b7700 gcspushm x0 .*: d50b770f gcspushm x15 .*: d50b771e gcspushm x30 diff --git a/gas/testsuite/gas/aarch64/gcs-1.s b/gas/testsuite/gas/aarch64/gcs-1.s index 9706587878d51d0c9874fdf1325d1052dd55ff57..35584a8810ea3b5e704dce6ee794664d14014e8c 100644 --- a/gas/testsuite/gas/aarch64/gcs-1.s +++ b/gas/testsuite/gas/aarch64/gcs-1.s @@ -3,6 +3,7 @@ gcspopcx gcspopx gcspopm + gcsb dsync .irp op gcspushm, gcsss1, gcsss2, gcspopm .irp reg1 x0, x15, x30, xzr diff --git a/gas/testsuite/gas/aarch64/hint-bad.d b/gas/testsuite/gas/aarch64/hint-bad.d new file mode 100644 index 0000000000000000000000000000000000000000..e881fc9b386809123da9f956b0f1f12794490dee --- /dev/null +++ b/gas/testsuite/gas/aarch64/hint-bad.d @@ -0,0 +1,4 @@ +#name: Barrier and BTI instructions with wrong targets. +#as: -march=armv8-a +#source: hint-bad.s +#error_output: hint-bad.l diff --git a/gas/testsuite/gas/aarch64/hint-bad.l b/gas/testsuite/gas/aarch64/hint-bad.l new file mode 100644 index 0000000000000000000000000000000000000000..57caed10e9a16de8415bc1a19bf9799898b5755e --- /dev/null +++ b/gas/testsuite/gas/aarch64/hint-bad.l @@ -0,0 +1,8 @@ +[^ :]+: Assembler messages: +[^ :]+:[0-9]+: Error: operand 1 must be the GCSB option name DSYNC -- `gcsb' +[^ :]+:[0-9]+: Error: operand 1 must be the GCSB option name DSYNC -- `gcsb csync' +[^ :]+:[0-9]+: Error: operand 1 must be the PSB/TSB option name CSYNC -- `psb' +[^ :]+:[0-9]+: Error: operand 1 must be the PSB/TSB option name CSYNC -- `psb dsync' +[^ :]+:[0-9]+: Error: operand 1 must be the PSB/TSB option name CSYNC -- `tsb' +[^ :]+:[0-9]+: Error: operand 1 must be the PSB/TSB option name CSYNC -- `tsb dsync' +[^ :]+:[0-9]+: Error: operand 1 must be BTI targets j/c/jc -- `bti jj' diff --git a/gas/testsuite/gas/aarch64/hint-bad.s b/gas/testsuite/gas/aarch64/hint-bad.s new file mode 100644 index 0000000000000000000000000000000000000000..319b859f845ef37ad440eb300eac823456c470b0 --- /dev/null +++ b/gas/testsuite/gas/aarch64/hint-bad.s @@ -0,0 +1,8 @@ + .text + gcsb + gcsb csync + psb + psb dsync + tsb + tsb dsync + bti jj diff --git a/gas/testsuite/gas/aarch64/system.d b/gas/testsuite/gas/aarch64/system.d index 8ad274655049dd8b7ab5253f2d8b45537e50528f..bb1a94cb0204b953ba204365c075493622d24c16 100644 --- a/gas/testsuite/gas/aarch64/system.d +++ b/gas/testsuite/gas/aarch64/system.d @@ -34,7 +34,7 @@ Disassembly of section \.text: .*: d503221f (hint #0x10|esb) .*: d503223f (hint #0x11|psb csync) .*: d503225f (hint #0x12|tsb csync) -.*: d503227f hint #0x13 +.*: d503227f (hint #0x13|gcsb dsync) .*: d503229f (hint #0x14|csdb) .*: d50322bf hint #0x15 .*: d50322df (hint #0x16|clearbhb) diff --git a/include/opcode/aarch64.h b/include/opcode/aarch64.h index fc6a01aefd6f957ceb4f1578d09977321ff270b6..8410a69ee24a692d340d3a5b3e82fe97dca8c7a2 100644 --- a/include/opcode/aarch64.h +++ b/include/opcode/aarch64.h @@ -520,6 +520,7 @@ enum aarch64_opnd AARCH64_OPND_PRFOP, /* Prefetch operation. */ AARCH64_OPND_RPRFMOP, /* Range prefetch operation. */ AARCH64_OPND_BARRIER_PSB, /* Barrier operand for PSB. */ + AARCH64_OPND_BARRIER_GCSB, /* Barrier operand for GCSB. */ AARCH64_OPND_BTI_TARGET, /* BTI {}. */ AARCH64_OPND_SVE_ADDR_RI_S4x16, /* SVE [, #*16]. */ AARCH64_OPND_SVE_ADDR_RI_S4x32, /* SVE [, #*32]. */ @@ -1480,6 +1481,7 @@ struct aarch64_inst /* Defining the HINT #imm values for the aarch64_hint_options. */ #define HINT_OPD_CSYNC 0x11 +#define HINT_OPD_DSYNC 0x13 #define HINT_OPD_C 0x22 #define HINT_OPD_J 0x24 #define HINT_OPD_JC 0x26 diff --git a/opcodes/aarch64-opc.c b/opcodes/aarch64-opc.c index 599bb6365374257189c3247ae0dbf0881ab6c079..6d9f3a06def7e696ffd6cd74fa8e1ffc7eeecbb7 100644 --- a/opcodes/aarch64-opc.c +++ b/opcodes/aarch64-opc.c @@ -554,6 +554,7 @@ const struct aarch64_name_value_pair aarch64_hint_options[] = /* BTI. This is also the F_DEFAULT entry for AARCH64_OPND_BTI_TARGET. */ { " ", HINT_ENCODE (HINT_OPD_F_NOPRINT, 0x20) }, { "csync", HINT_OPD_CSYNC }, /* PSB CSYNC. */ + { "dsync", HINT_OPD_DSYNC }, /* GCSB DSYNC. */ { "c", HINT_OPD_C }, /* BTI C. */ { "j", HINT_OPD_J }, /* BTI J. */ { "jc", HINT_OPD_JC }, /* BTI JC. */ @@ -4629,6 +4630,10 @@ aarch64_print_operand (char *buf, size_t size, bfd_vma pc, snprintf (buf, size, "{%s}", style_reg (styler, "zt0")); break; + case AARCH64_OPND_BARRIER_GCSB: + snprintf (buf, size, "%s", style_sub_mnem (styler, "dsync")); + break; + case AARCH64_OPND_BTI_TARGET: if ((HINT_FLAG (opnd->hint_option->value) & HINT_OPD_F_NOPRINT) == 0) snprintf (buf, size, "%s", diff --git a/opcodes/aarch64-tbl.h b/opcodes/aarch64-tbl.h index f281fd55070da59f3ce598115b9ab701fd754deb..463939d24ca1db8ad59c3f8e7a4f27f007f4137a 100644 --- a/opcodes/aarch64-tbl.h +++ b/opcodes/aarch64-tbl.h @@ -4156,6 +4156,7 @@ const struct aarch64_opcode aarch64_opcode_table[] = GCS_INSN ("gcspopm", 0xd52b7720, 0xffffffe0, OP1 (Rt), QL_I1X, 0), GCS_INSN ("gcsstr", 0xd91f0c00, 0xfffffc00, OP2 (Rt, Rn_SP), QL_I2SAMEX, 0), GCS_INSN ("gcssttr", 0xd91f1c00, 0xfffffc00, OP2 (Rt, Rn_SP), QL_I2SAMEX, 0), + CORE_INSN ("gcsb", 0xd503227f, 0xffffffff, ic_system, 0, OP1 (BARRIER_GCSB), {}, F_ALIAS), CORE_INSN ("sys", 0xd5080000, 0xfff80000, ic_system, 0, OP5 (UIMM3_OP1, CRn, CRm, UIMM3_OP2, Rt), QL_SYS, F_HAS_ALIAS | F_OPD4_OPT | F_DEFAULT (0x1F)), CORE_INSN ("at", 0xd5080000, 0xfff80000, ic_system, 0, OP2 (SYSREG_AT, Rt), QL_SRC_X, F_ALIAS), CORE_INSN ("dc", 0xd5080000, 0xfff80000, ic_system, 0, OP2 (SYSREG_DC, Rt), QL_SRC_X, F_ALIAS), @@ -6300,7 +6301,9 @@ const struct aarch64_opcode aarch64_opcode_table[] = "a range prefetch operation specifier") \ Y(SYSTEM, none, "BARRIER_PSB", 0, F (), \ "the PSB/TSB option name CSYNC") \ - Y(SYSTEM, hint, "BTI", 0, F (), \ + Y(SYSTEM, none, "BARRIER_GCSB", 0, F (), \ + "the GCSB option name DSYNC") \ + Y(SYSTEM, hint, "BTI_TARGET", 0, F (), \ "BTI targets j/c/jc") \ Y(ADDRESS, sve_addr_ri_s4, "SVE_ADDR_RI_S4x16", \ 4 << OPD_F_OD_LSB, F(FLD_Rn), \