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arc/gas: default mach is arc700, initialised in md_begin
This commit restructures the selection of the default cpu/mach so that the choice is made from md_begin (if the user has not provided a command line choice). This will reduce the amount of change needed in a later patch. At the request of Synopsys, the default architecture changes to ARC700 from this commit, previously the default was a non-existent super-architecture that contained all instructions from all arc variants. There's some clean up associated with removing the default merged architecture, and a small test fix now that the default is ARC700. binutils/ChangeLog: * testsuite/binutils-all/objdump.exp (cpus_expected): Add ARC700 to the architecture list. gas/ChangeLog: * config/tc-arc.c (arc_target): Delay initialisation until arc_select_cpu. (arc_target_name): Likewise. (arc_features): Likewise. (arc_mach_type): Likewise. (cpu_types): Remove "all" entry. (arc_select_cpu): New function, most of the content is from... (md_parse_option): ... here. Call new arc_select_cpu. (md_begin): Call arc_select_cpu if needed, default is now arc700. include/ChangeLog: * opcode/arc.h (ARC_OPCODE_BASE): Delete. opcodes/ChangeLog: * arc-opc.c (BASE): Delete.
This commit is contained in:
Andrew Burgess
parent
62f6f9c28a
commit
24740d83e4
@ -1,3 +1,8 @@
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2016-03-21 Andrew Burgess <andrew.burgess@embecosm.com>
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* testsuite/binutils-all/objdump.exp (cpus_expected): Add ARC700
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to the architecture list.
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2016-03-21 Nick Clifton <nickc@redhat.com>
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* dlltool.c: Replace use of alloca with call to xmalloc.
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@ -34,7 +34,7 @@ send_user "Version [binutil_version $OBJDUMP]"
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set got [binutils_run $OBJDUMP "$OBJDUMPFLAGS -i"]
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set cpus_expected [list]
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lappend cpus_expected aarch64 alpha arc ARCv2 arm cris
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lappend cpus_expected aarch64 alpha arc ARC700 ARCv2 arm cris
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lappend cpus_expected d10v d30v fr30 fr500 fr550 h8 hppa i386 i860 i960 iamcu ip2022
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lappend cpus_expected m16c m32c m32r m68hc11 m68hc12 m68k m88k MCore mep c5 h1 MicroBlaze
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lappend cpus_expected mips mn10200 mn10300 ms1 msp MSP430 nds32 n1h_v3 ns32k
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@ -1,3 +1,15 @@
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2016-03-21 Andrew Burgess <andrew.burgess@embecosm.com>
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* config/tc-arc.c (arc_target): Delay initialisation until
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arc_select_cpu.
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(arc_target_name): Likewise.
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(arc_features): Likewise.
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(arc_mach_type): Likewise.
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(cpu_types): Remove "all" entry.
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(arc_select_cpu): New function, most of the content is from...
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(md_parse_option): ... here. Call new arc_select_cpu.
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(md_begin): Call arc_select_cpu if needed, default is now arc700.
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2016-03-21 Andrew Burgess <andrew.burgess@embecosm.com>
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* testsuite/gas/arc/inline-data-1.d: Add target restriction.
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@ -311,12 +311,12 @@ static void assemble_insn
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const struct arc_flags *, int, struct arc_insn *);
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/* The cpu for which we are generating code. */
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static unsigned arc_target = ARC_OPCODE_BASE;
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static const char *arc_target_name = "<all>";
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static unsigned arc_features = 0x00;
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static unsigned arc_target;
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static const char *arc_target_name;
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static unsigned arc_features;
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/* The default architecture. */
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static int arc_mach_type = bfd_mach_arc_arcv2;
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static int arc_mach_type;
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/* Non-zero if the cpu type has been explicitly specified. */
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static int mach_type_specified_p = 0;
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@ -346,8 +346,6 @@ static const struct cpu_type
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EF_ARC_CPU_ARCV2EM, ARC_CD},
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{ "archs", ARC_OPCODE_ARCv2HS, bfd_mach_arc_arcv2,
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EF_ARC_CPU_ARCV2HS, ARC_CD},
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{ "all", ARC_OPCODE_BASE, bfd_mach_arc_arcv2,
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0x00, 0x00 },
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{ 0, 0, 0, 0, 0 }
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};
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@ -569,6 +567,35 @@ md_number_to_chars_midend (char *buf, valueT val, int n)
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}
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}
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/* Select an appropriate entry from CPU_TYPES based on ARG and initialise
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the relevant static global variables. */
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static void
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arc_select_cpu (const char *arg)
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{
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int cpu_flags = EF_ARC_CPU_GENERIC;
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int i;
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for (i = 0; cpu_types[i].name; ++i)
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{
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if (!strcasecmp (cpu_types[i].name, arg))
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{
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arc_target = cpu_types[i].flags;
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arc_target_name = cpu_types[i].name;
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arc_features = cpu_types[i].features;
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arc_mach_type = cpu_types[i].mach;
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cpu_flags = cpu_types[i].eflags;
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break;
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}
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}
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if (!cpu_types[i].name)
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as_fatal (_("unknown architecture: %s\n"), arg);
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if (cpu_flags != EF_ARC_CPU_GENERIC)
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arc_eflag = (arc_eflag & ~EF_ARC_MACH_MSK) | cpu_flags;
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}
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/* Here ends all the ARCompact extension instruction assembling
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stuff. */
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@ -2088,6 +2115,9 @@ md_begin (void)
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{
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unsigned int i;
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if (!mach_type_specified_p)
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arc_select_cpu ("arc700");
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/* The endianness can be chosen "at the factory". */
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target_big_endian = byte_order == BIG_ENDIAN;
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@ -2874,8 +2904,6 @@ arc_parse_name (const char *name,
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int
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md_parse_option (int c, char *arg ATTRIBUTE_UNUSED)
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{
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int cpu_flags = EF_ARC_CPU_GENERIC;
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switch (c)
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{
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case OPTION_ARC600:
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@ -2893,36 +2921,8 @@ md_parse_option (int c, char *arg ATTRIBUTE_UNUSED)
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case OPTION_MCPU:
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{
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int i;
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char *s = xmalloc (strlen (arg) + 1);
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{
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char *t = s;
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char *arg1 = arg;
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do
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*t = TOLOWER (*arg1++);
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while (*t++);
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}
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for (i = 0; cpu_types[i].name; ++i)
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{
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if (strcmp (cpu_types[i].name, s) == 0)
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{
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arc_target = cpu_types[i].flags;
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arc_target_name = cpu_types[i].name;
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arc_features = cpu_types[i].features;
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arc_mach_type = cpu_types[i].mach;
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cpu_flags = cpu_types[i].eflags;
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mach_type_specified_p = 1;
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break;
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}
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}
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if (!cpu_types[i].name)
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as_fatal (_("unknown architecture: %s\n"), arg);
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free (s);
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arc_select_cpu (arg);
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mach_type_specified_p = 1;
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break;
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}
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@ -2976,9 +2976,6 @@ md_parse_option (int c, char *arg ATTRIBUTE_UNUSED)
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return 0;
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}
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if (cpu_flags != EF_ARC_CPU_GENERIC)
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arc_eflag = (arc_eflag & ~EF_ARC_MACH_MSK) | cpu_flags;
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return 1;
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}
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@ -1,3 +1,7 @@
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2016-03-21 Andrew Burgess <andrew.burgess@embecosm.com>
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* opcode/arc.h (ARC_OPCODE_BASE): Delete.
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2016-03-15 H.J. Lu <hongjiu.lu@intel.com>
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PR ld/19807
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@ -171,11 +171,6 @@ extern const unsigned arc_num_opcodes;
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#define ARC_XMAC 0x1000
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#define ARC_CRC 0x1000
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/* Base architecture -- all cpus. */
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#define ARC_OPCODE_BASE \
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(ARC_OPCODE_ARC600 | ARC_OPCODE_ARC700 \
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| ARC_OPCODE_ARCv2EM | ARC_OPCODE_ARCv2HS)
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/* A macro to check for short instructions. */
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#define ARC_SHORT(mask) \
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(((mask) & 0xFFFF0000) ? 0 : 1)
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@ -1,3 +1,7 @@
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2016-03-21 Andrew Burgess <andrew.burgess@embecosm.com>
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* arc-opc.c (BASE): Delete.
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2016-03-18 Nick Clifton <nickc@redhat.com>
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PR target/19721
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@ -642,9 +642,6 @@ extract_g_s (unsigned insn ATTRIBUTE_UNUSED,
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defines. */
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#include "arc-fxi.h"
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/* Abbreviations for instruction subsets. */
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#define BASE ARC_OPCODE_BASE
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/* The flag operands table.
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The format of the table is
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