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authorMichael Meissner <gnu@the-meissners.org>1995-09-22 20:42:38 +0000
committerMichael Meissner <gnu@the-meissners.org>1995-09-22 20:42:38 +0000
commit25b1cdd0f302f6fad4482ef1a1a0a5527be7878b (patch)
tree9e7b7460cee7373b33308f6c96fac2ac67d5941c /gas
parent02f85cda33206b2d356731a36541eb80c05c7549 (diff)
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start at handling branch taken/branch not taken hints.
Diffstat (limited to 'gas')
-rw-r--r--gas/ChangeLog7
-rw-r--r--gas/config/tc-ppc.c72
2 files changed, 47 insertions, 32 deletions
diff --git a/gas/ChangeLog b/gas/ChangeLog
index ac95858..f26eb85 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,10 @@
+Fri Sep 22 16:34:46 1995 Michael Meissner <meissner@tiktok.cygnus.com>
+
+ * config/tc-ppc.c (ppc_elf_suffix): Rewrite to use a table of
+ strings and relocations they represent. Add @br{,n}taken for
+ branch taken/not taken support.
+ (md_apply_fix3): Add BFD_RELOC_PPC_B16_BR{,N}TAKEN support.
+
Thu Sep 21 21:10:17 1995 Michael Meissner <meissner@cygnus.com>
* config/tc-ppc.c (md_parse_option): -mrelocatable-lib now only
diff --git a/gas/config/tc-ppc.c b/gas/config/tc-ppc.c
index 01f152f..435d0fb 100644
--- a/gas/config/tc-ppc.c
+++ b/gas/config/tc-ppc.c
@@ -554,41 +554,46 @@ static bfd_reloc_code_real_type
ppc_elf_suffix (str_p)
char **str_p;
{
- char *str = *str_p;
+ struct map_bfd {
+ char *string;
+ int length;
+ bfd_reloc_code_real_type reloc;
+ };
- if (*str != '@')
+ char *str = *str_p;
+ int ch;
+ struct map_bfd *ptr;
+
+ static struct map_bfd mapping[] = {
+ { "GOT", 3, BFD_RELOC_PPC_TOC16 },
+ { "got", 3, BFD_RELOC_PPC_TOC16 },
+ { "L", 1, BFD_RELOC_LO16 },
+ { "l", 1, BFD_RELOC_LO16 },
+ { "HA", 2, BFD_RELOC_HI16_S },
+ { "ha", 2, BFD_RELOC_HI16_S },
+ { "H", 1, BFD_RELOC_HI16 },
+ { "h", 1, BFD_RELOC_HI16 },
+ { "SDAREL", 6, BFD_RELOC_GPREL16 },
+ { "sdarel", 6, BFD_RELOC_GPREL16 },
+ { "FIXUP", 5, BFD_RELOC_CTOR }, /* synonym for BFD_RELOC_32 that doesn't get */
+ { "fixup", 5, BFD_RELOC_CTOR }, /* warnings with -mrelocatable */
+ { "BRTAKEN", 7, BFD_RELOC_PPC_B16_BRTAKEN },
+ { "brtaken", 7, BFD_RELOC_PPC_B16_BRTAKEN },
+ { "BRNTAKEN", 8, BFD_RELOC_PPC_B16_BRNTAKEN },
+ { "brntaken", 8, BFD_RELOC_PPC_B16_BRNTAKEN },
+ { (char *)0, 0, BFD_RELOC_UNUSED }
+ };
+
+ if (*str++ != '@')
return BFD_RELOC_UNUSED;
- if (strncmp (str, "@GOT", 4) == 0 || strncmp (str, "@got", 4) == 0)
- {
- *str_p += 4;
- return BFD_RELOC_PPC_TOC16;
- }
- else if (strncmp (str, "@L", 2) == 0 || strncmp (str, "@l", 2) == 0)
- {
- *str_p += 2;
- return BFD_RELOC_LO16;
- }
- else if (strncmp (str, "@HA", 3) == 0 || strncmp (str, "@ha", 3) == 0)
- {
- *str_p += 3;
- return BFD_RELOC_HI16_S;
- }
- else if (strncmp (str, "@H", 2) == 0 || strncmp (str, "@h", 2) == 0)
- {
- *str_p += 2;
- return BFD_RELOC_HI16;
- }
- else if (strncmp (str, "@sdarel", 7) == 0 || strncmp (str, "@sdarel", 7) == 0)
- {
- *str_p += 7;
- return BFD_RELOC_GPREL16;
- }
- else if (strncmp (str, "@FIXUP", 6) == 0 || strncmp (str, "@fixup", 6) == 0)
- {
- *str_p += 6;
- return BFD_RELOC_CTOR; /* synonym for BFD_RELOC_32 that doesn't get */
- } /* warnings with -mrelocatable */
+ ch = *str;
+ for (ptr = &mapping[0]; ptr->length > 0; ptr++)
+ if (ch == ptr->string[0] && strncmp (str, ptr->string, ptr->length) == 0)
+ {
+ *str_p = str + ptr->length;
+ return ptr->reloc;
+ }
return BFD_RELOC_UNUSED;
}
@@ -2790,6 +2795,9 @@ md_apply_fix3 (fixp, valuep, seg)
if (fixp->fx_pcrel)
abort ();
+ case BFD_RELOC_PPC_B16_BRTAKEN:
+ case BFD_RELOC_PPC_B16_BRNTAKEN:
+ value <<= 2;
md_number_to_chars (fixp->fx_frag->fr_literal + fixp->fx_where,
value, 2);
break;