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Fri Oct 24 11:19:22 1997 Jakub Jelinek <jj@sunsite.mff.cuni.cz>

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* config/tc-sparc.c (sparc_memory_model): New variable.
        (md_longopts): Add -TSO/-PSO/-RMO options.
        (md_parse_options): Handle them.
        (sparc_elf_final_processing): For 64 ELF, set required
        memory ordering in e_flags. Default to RMO and let the user
        override it through command line.

        * config/tc-sparc.h (elf_tc_final_processing): Add.
This commit is contained in:
Richard Henderson
1997-10-24 18:20:36 +00:00
parent ccbab31db1
commit 1bb6aaad34
2 changed files with 66 additions and 3 deletions
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11
gas/ChangeLog
View File

@ -1,3 +1,14 @@
Fri Oct 24 11:19:22 1997 Jakub Jelinek <jj@sunsite.mff.cuni.cz>
* config/tc-sparc.c (sparc_memory_model): New variable.
(md_longopts): Add -TSO/-PSO/-RMO options.
(md_parse_options): Handle them.
(sparc_elf_final_processing): For 64 ELF, set required
memory ordering in e_flags. Default to RMO and let the user
override it through command line.
* config/tc-sparc.h (elf_tc_final_processing): Add.
Wed Oct 22 17:42:12 1997 Richard Henderson <rth@cygnus.com>
* config/tc-sparc.c (v9a_asr_table): New variable.

58
gas/config/tc-sparc.c
View File

@ -26,6 +26,8 @@
#include "opcode/sparc.h"
#include "elf/sparc.h"
static struct sparc_arch *lookup_arch PARAMS ((char *));
static void init_default_arch PARAMS ((void));
static void sparc_ip PARAMS ((char *, const struct sparc_opcode **));
@ -64,6 +66,7 @@ static enum sparc_opcode_arch_val max_architecture;
/* Either 32 or 64, selects file format. */
static int sparc_arch_size;
static enum { MM_TSO, MM_PSO, MM_RMO } sparc_memory_model = MM_RMO;
/* Initial (default) value, recorded separately in case a user option
changes the value before md_show_usage is called. */
static int default_arch_size;
@ -353,14 +356,20 @@ struct option md_longopts[] = {
{"32", no_argument, NULL, OPTION_32},
#define OPTION_64 (OPTION_MD_BASE + 4)
{"64", no_argument, NULL, OPTION_64},
#define OPTION_TSO (OPTION_MD_BASE + 5)
{"TSO", no_argument, NULL, OPTION_TSO},
#define OPTION_PSO (OPTION_MD_BASE + 6)
{"PSO", no_argument, NULL, OPTION_PSO},
#define OPTION_RMO (OPTION_MD_BASE + 7)
{"RMO", no_argument, NULL, OPTION_RMO},
#endif
#ifdef SPARC_BIENDIAN
#define OPTION_LITTLE_ENDIAN (OPTION_MD_BASE + 5)
#define OPTION_LITTLE_ENDIAN (OPTION_MD_BASE + 8)
{"EL", no_argument, NULL, OPTION_LITTLE_ENDIAN},
#define OPTION_BIG_ENDIAN (OPTION_MD_BASE + 6)
#define OPTION_BIG_ENDIAN (OPTION_MD_BASE + 9)
{"EB", no_argument, NULL, OPTION_BIG_ENDIAN},
#endif
#define OPTION_ENFORCE_ALIGNED_DATA (OPTION_MD_BASE + 7)
#define OPTION_ENFORCE_ALIGNED_DATA (OPTION_MD_BASE + 10)
{"enforce-aligned-data", no_argument, NULL, OPTION_ENFORCE_ALIGNED_DATA},
{NULL, no_argument, NULL, 0}
};
@ -467,6 +476,18 @@ md_parse_option (c, arg)
}
break;
case OPTION_TSO:
sparc_memory_model = MM_TSO;
break;
case OPTION_PSO:
sparc_memory_model = MM_PSO;
break;
case OPTION_RMO:
sparc_memory_model = MM_RMO;
break;
case 'V':
print_version_id ();
break;
@ -535,6 +556,12 @@ md_show_usage (stream)
fprintf (stream, "\
[default is %d]\n", default_arch_size);
fprintf (stream, "\
-TSO use Total Store Ordering\n\
-PSO use Partial Store Ordering\n\
-RMO use Relaxed Memory Ordering\n");
fprintf (stream, "\
[default is %s]\n", (default_arch_size == 64) ? "RMO" : "TSO");
fprintf (stream, "\
-KPIC generate PIC\n\
-V print assembler version number\n\
-q ignored\n\
@ -3301,3 +3328,28 @@ sparc_handle_align (fragp)
}
}
}
#ifdef OBJ_ELF
/* Some special processing for a Sparc ELF file. */
void
sparc_elf_final_processing ()
{
/* Set the Sparc ELF flag bits. FIXME: There should probably be some
sort of BFD interface for this. */
if (sparc_arch_size == 64)
switch (sparc_memory_model)
{
case MM_RMO:
elf_elfheader (stdoutput)->e_flags |= EF_SPARCV9_RMO;
break;
case MM_PSO:
elf_elfheader (stdoutput)->e_flags |= EF_SPARCV9_PSO;
break;
}
else if (current_architecture >= SPARC_OPCODE_ARCH_V9)
elf_elfheader (stdoutput)->e_flags |= EF_SPARC_32PLUS;
if (current_architecture == SPARC_OPCODE_ARCH_V9A)
elf_elfheader (stdoutput)->e_flags |= EF_SPARC_SUN_US1;
}
#endif