diff options
Diffstat (limited to 'gas/config')
| -rw-r--r-- | gas/config/tc-v850.c | 88 | ||||
| -rw-r--r-- | gas/config/tc-v850.h | 3 |
2 files changed, 91 insertions, 0 deletions
diff --git a/gas/config/tc-v850.c b/gas/config/tc-v850.c index c48c011..fc55106 100644 --- a/gas/config/tc-v850.c +++ b/gas/config/tc-v850.c @@ -31,6 +31,9 @@ static bfd_boolean warn_signed_overflows = FALSE; static bfd_boolean warn_unsigned_overflows = FALSE; +/* Non-zero if floating point insns are not being used. */ +static signed int soft_float = -1; + /* Indicates the target BFD machine number. */ static int machine = -1; @@ -1537,6 +1540,8 @@ struct option md_longopts[] = size_t md_longopts_size = sizeof (md_longopts); +static bfd_boolean v850_data_8 = FALSE; + void md_show_usage (FILE *stream) { @@ -1560,6 +1565,8 @@ md_show_usage (FILE *stream) fprintf (stream, _(" -mrh850-abi Mark the binary as using the RH850 ABI (default)\n")); fprintf (stream, _(" -m8byte-align Mark the binary as using 64-bit alignment\n")); fprintf (stream, _(" -m4byte-align Mark the binary as using 32-bit alignment (default)\n")); + fprintf (stream, _(" -msoft-float Mark the binary as not using FP insns (default for pre e2v3)\n")); + fprintf (stream, _(" -mhard-float Mark the binary as using FP insns (default for e2v3 and up)\n")); } int @@ -1646,6 +1653,14 @@ md_parse_option (int c, char *arg) v850_target_format = "elf32-v850-rh850"; } else if (strcmp (arg, "8byte-align") == 0) + v850_data_8 = TRUE; + else if (strcmp (arg, "4byte-align") == 0) + v850_data_8 = FALSE; + else if (strcmp (arg, "soft-float") == 0) + soft_float = 1; + else if (strcmp (arg, "hard-float") == 0) + soft_float = 0; + else if (strcmp (arg, "8byte-align") == 0) v850_e_flags |= EF_RH850_DATA_ALIGN8; else if (strcmp (arg, "4byte-align") == 0) v850_e_flags &= ~ EF_RH850_DATA_ALIGN8; @@ -1940,6 +1955,9 @@ md_begin (void) as_bad (_("Unable to determine default target processor from string: %s"), TARGET_CPU); + if (soft_float == -1) + soft_float = machine < bfd_mach_v850e2v3; + v850_hash = hash_new (); /* Insert unique names into hash table. The V850 instruction set @@ -3716,3 +3734,73 @@ v850_force_relocation (struct fix *fixP) return generic_force_reloc (fixP); } + +/* Create a v850 note section. */ +void +v850_md_end (void) +{ + segT note_sec; + segT orig_seg = now_seg; + subsegT orig_subseg = now_subseg; + enum v850_notes id; + + note_sec = subseg_new (V850_NOTE_SECNAME, 0); + bfd_set_section_flags (stdoutput, note_sec, SEC_HAS_CONTENTS | SEC_READONLY | SEC_MERGE); + bfd_set_section_alignment (stdoutput, note_sec, 2); + + /* Provide default values for all of the notes. */ + for (id = V850_NOTE_ALIGNMENT; id <= NUM_V850_NOTES; id++) + { + int val = 0; + char * p; + + /* Follow the standard note section layout: + First write the length of the name string. */ + p = frag_more (4); + md_number_to_chars (p, 4, 4); + + /* Next comes the length of the "descriptor", i.e., the actual data. */ + p = frag_more (4); + md_number_to_chars (p, 4, 4); + + /* Write the note type. */ + p = frag_more (4); + md_number_to_chars (p, (valueT) id, 4); + + /* Write the name field. */ + p = frag_more (4); + memcpy (p, V850_NOTE_NAME, 4); + + /* Finally, write the descriptor. */ + p = frag_more (4); + switch (id) + { + case V850_NOTE_ALIGNMENT: + val = v850_data_8 ? EF_RH850_DATA_ALIGN8 : EF_RH850_DATA_ALIGN4; + break; + + case V850_NOTE_DATA_SIZE: + /* GCC does not currently support an option + for 32-bit doubles with the V850 backend. */ + val = EF_RH850_DOUBLE64; + break; + + case V850_NOTE_FPU_INFO: + if (! soft_float) + switch (machine) + { + case bfd_mach_v850e3v5: val = EF_RH850_FPU30; break; + case bfd_mach_v850e2v3: val = EF_RH850_FPU20; break; + default: break; + } + break; + + default: + break; + } + md_number_to_chars (p, val, 4); + } + + /* Paranoia - we probably do not need this. */ + subseg_set (orig_seg, orig_subseg); +} diff --git a/gas/config/tc-v850.h b/gas/config/tc-v850.h index 0808bd8..efce415 100644 --- a/gas/config/tc-v850.h +++ b/gas/config/tc-v850.h @@ -84,3 +84,6 @@ extern long v850_pcrel_from_section (struct fix *, asection *); processed so that the resulting value can be inserted correctly. */ #define TC_FIX_TYPE void * #define TC_INIT_FIX_DATA(fixP) (fixP)->tc_fix_data = NULL + +#define md_end v850_md_end +extern void v850_md_end (void); |