From 3315614d19a7fb409227298ead9b356bdbcca3bc Mon Sep 17 00:00:00 2001 From: Matthew Fortune Date: Tue, 9 Apr 2019 10:34:48 -0700 Subject: [PATCH] [MIPS] Apply ASE information for the selected processor GAS does not enable implicit ASEs for most MIPS processors. The rework of option handling done as part of .module implementation left the implicit ASE logic broken and default enabled ASEs for most processors did not get applied. This patch ensures the ASE information is carried forward to the point where it is required. gas/ * config/tc-mips.c (mips_set_options) : New field. (file_mips_opts, mips_opts) : Initialize new field. (file_mips_check_options): Propagate initial ASE settings. (mips_after_parse_args, parse_code_option): Track the initial ASE settings for a CPU. (s_mipsset): Restore the initial ASE settings when reverting to the default arch. * testsuite/gas/mips/elf_mach_p6600.d: New test. * testsuite/gas/mips/mips.exp: Run the new test. --- gas/ChangeLog | 12 ++++++++++++ gas/config/tc-mips.c | 22 +++++++++++++++------- gas/testsuite/gas/mips/elf_mach_p6600.d | 23 +++++++++++++++++++++++ gas/testsuite/gas/mips/mips.exp | 1 + 4 files changed, 51 insertions(+), 7 deletions(-) create mode 100644 gas/testsuite/gas/mips/elf_mach_p6600.d diff --git a/gas/ChangeLog b/gas/ChangeLog index b45d136ea09..b193e44a800 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,3 +1,15 @@ +2019-04-09 Matthew Fortune + + * config/tc-mips.c (mips_set_options) : New field. + (file_mips_opts, mips_opts) : Initialize new field. + (file_mips_check_options): Propagate initial ASE settings. + (mips_after_parse_args, parse_code_option): Track the initial + ASE settings for a CPU. + (s_mipsset): Restore the initial ASE settings when reverting + to the default arch. + * testsuite/gas/mips/elf_mach_p6600.d: New test. + * testsuite/gas/mips/mips.exp: Run the new test. + 2019-04-12 John Darrington config/tc-s12z.h: Remove definition of macro TC_M68K diff --git a/gas/config/tc-mips.c b/gas/config/tc-mips.c index 81b729a295d..45e8f38ef5e 100644 --- a/gas/config/tc-mips.c +++ b/gas/config/tc-mips.c @@ -268,6 +268,12 @@ struct mips_set_options /* 1 if single-precision operations on odd-numbered registers are allowed. */ int oddspreg; + + /* The set of ASEs that should be enabled for the user specified + architecture. This cannot be inferred from 'arch' for all cores + as processors only have a unique 'arch' if they add architecture + specific instructions (UDI). */ + int init_ase; }; /* Specifies whether module level options have been checked yet. */ @@ -289,7 +295,8 @@ static struct mips_set_options file_mips_opts = /* noreorder */ 0, /* at */ ATREG, /* warn_about_macros */ 0, /* nomove */ 0, /* nobopt */ 0, /* noautoextend */ 0, /* insn32 */ FALSE, /* gp */ -1, /* fp */ -1, /* arch */ CPU_UNKNOWN, /* sym32 */ FALSE, - /* soft_float */ FALSE, /* single_float */ FALSE, /* oddspreg */ -1 + /* soft_float */ FALSE, /* single_float */ FALSE, /* oddspreg */ -1, + /* init_ase */ 0 }; /* This is similar to file_mips_opts, but for the current set of options. */ @@ -300,7 +307,8 @@ static struct mips_set_options mips_opts = /* noreorder */ 0, /* at */ ATREG, /* warn_about_macros */ 0, /* nomove */ 0, /* nobopt */ 0, /* noautoextend */ 0, /* insn32 */ FALSE, /* gp */ -1, /* fp */ -1, /* arch */ CPU_UNKNOWN, /* sym32 */ FALSE, - /* soft_float */ FALSE, /* single_float */ FALSE, /* oddspreg */ -1 + /* soft_float */ FALSE, /* single_float */ FALSE, /* oddspreg */ -1, + /* init_ase */ 0 }; /* Which bits of file_ase were explicitly set or cleared by ASE options. */ @@ -4086,8 +4094,6 @@ mips_check_options (struct mips_set_options *opts, bfd_boolean abi_checks) static void file_mips_check_options (void) { - const struct mips_cpu_info *arch_info = 0; - if (file_mips_opts_checked) return; @@ -4130,8 +4136,6 @@ file_mips_check_options (void) file_mips_opts.fp = 32; } - arch_info = mips_cpu_info_from_arch (file_mips_opts.arch); - /* Disable operations on odd-numbered floating-point registers by default when using the FPXX ABI. */ if (file_mips_opts.oddspreg < 0) @@ -4175,7 +4179,7 @@ file_mips_check_options (void) /* If the user didn't explicitly select or deselect a particular ASE, use the default setting for the CPU. */ - file_mips_opts.ase |= (arch_info->ase & ~file_ase_explicit); + file_mips_opts.ase |= (file_mips_opts.init_ase & ~file_ase_explicit); /* Set up the current options. These may change throughout assembly. */ mips_opts = file_mips_opts; @@ -15189,6 +15193,7 @@ mips_after_parse_args (void) file_mips_opts.arch = arch_info->cpu; file_mips_opts.isa = arch_info->isa; + file_mips_opts.init_ase = arch_info->ase; /* Set up initial mips_opts state. */ mips_opts = file_mips_opts; @@ -16559,6 +16564,7 @@ parse_code_option (char * name) mips_opts.arch = p->cpu; mips_opts.isa = p->isa; isa_set = TRUE; + mips_opts.init_ase = p->ase; } } else if (strncmp (name, "mips", 4) == 0) @@ -16573,6 +16579,7 @@ parse_code_option (char * name) mips_opts.arch = p->cpu; mips_opts.isa = p->isa; isa_set = TRUE; + mips_opts.init_ase = p->ase; } } else @@ -16646,6 +16653,7 @@ s_mipsset (int x ATTRIBUTE_UNUSED) { mips_opts.isa = file_mips_opts.isa; mips_opts.arch = file_mips_opts.arch; + mips_opts.init_ase = file_mips_opts.init_ase; mips_opts.gp = file_mips_opts.gp; mips_opts.fp = file_mips_opts.fp; } diff --git a/gas/testsuite/gas/mips/elf_mach_p6600.d b/gas/testsuite/gas/mips/elf_mach_p6600.d new file mode 100644 index 00000000000..a977d3b6946 --- /dev/null +++ b/gas/testsuite/gas/mips/elf_mach_p6600.d @@ -0,0 +1,23 @@ +#readelf: -Ah +#name: ELF p6600 markings +#as: -64 -march=p6600 +#source: empty.s + +ELF Header: +#... + Flags: +0xa......., .*mips64r6.* +#... + +MIPS ABI Flags Version: 0 + +ISA: MIPS64r6 +GPR size: 64 +CPR1 size: 128 +CPR2 size: 0 +FP ABI: .* +ISA Extension: None +ASEs: + VZ ASE + MSA ASE +FLAGS 1: .* +FLAGS 2: .* diff --git a/gas/testsuite/gas/mips/mips.exp b/gas/testsuite/gas/mips/mips.exp index a009c6eae3d..5969c59c4bc 100644 --- a/gas/testsuite/gas/mips/mips.exp +++ b/gas/testsuite/gas/mips/mips.exp @@ -1151,6 +1151,7 @@ if { [istarget mips*-*-vxworks*] } { # Verify that machine markings are handled properly. run_dump_test "elf_mach_5900" run_dump_test "elf_mach_interaptiv-mr2" + run_dump_test "elf_mach_p6600" run_dump_test "mips-gp32-fp32-pic" run_dump_test "mips-gp32-fp64-pic" -- 2.30.2