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author | Alan Modra <amodra@gmail.com> | 2003-09-04 01:51:37 +0000 |
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committer | Alan Modra <amodra@gmail.com> | 2003-09-04 01:51:37 +0000 |
commit | 661bd698e46455fe4cbc73cb8adb0c906f99bf1f (patch) | |
tree | 648c82b5dde39962fa83619bec52a81d9437408f /opcodes/ppc-dis.c | |
parent | f6c4061856e6d65eac2392c589395153bfb2d38b (diff) | |
download | gdb-661bd698e46455fe4cbc73cb8adb0c906f99bf1f.zip gdb-661bd698e46455fe4cbc73cb8adb0c906f99bf1f.tar.gz gdb-661bd698e46455fe4cbc73cb8adb0c906f99bf1f.tar.bz2 |
* ppc-dis.c (struct dis_private): New.
(powerpc_dialect): Make static. Accept -Many in addition to existing
options. Save dialect in dis_private.
(print_insn_big_powerpc): Retrieve dialect from dis_private.
(print_insn_little_powerpc): Likewise.
(print_insn_powerpc): Call powpc_dialect here. Remove unnecessary
efs/altivec check. Try harder to disassemble if given -Many.
* ppc-opc.c (insert_fxm): Expand comment.
(PPC, PPCCOM, PPC32, PPC64, PPCVEC): Remove PPC_OPCODE_ANY.
(POWER, POWER2, PPCPWR2, POWER32, COM, COM32, M601, PWRCOM): Likewise.
(POWER4): Remove PPCCOM.
(PPCONLY): Don't define. Update all occurrences to PPC.
Diffstat (limited to 'opcodes/ppc-dis.c')
-rw-r--r-- | opcodes/ppc-dis.c | 78 |
1 files changed, 46 insertions, 32 deletions
diff --git a/opcodes/ppc-dis.c b/opcodes/ppc-dis.c index 21efa84..76af4e7 100644 --- a/opcodes/ppc-dis.c +++ b/opcodes/ppc-dis.c @@ -32,11 +32,16 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * static int print_insn_powerpc (bfd_vma, struct disassemble_info *, int, int); +struct dis_private { + /* Stash the result of parsing disassembler_options here. */ + int dialect; +}; + /* Determine which set of machines to disassemble for. PPC403/601 or BookE. For convenience, also disassemble instructions supported by the AltiVec vector unit. */ -int +static int powerpc_dialect (struct disassemble_info *info) { int dialect = PPC_OPCODE_PPC | PPC_OPCODE_ALTIVEC; @@ -45,40 +50,39 @@ powerpc_dialect (struct disassemble_info *info) dialect |= PPC_OPCODE_64; if (info->disassembler_options - && (strcmp (info->disassembler_options, "booke") == 0 - || strcmp (info->disassembler_options, "booke32") == 0 - || strcmp (info->disassembler_options, "booke64") == 0)) + && strstr (info->disassembler_options, "booke") != NULL) dialect |= PPC_OPCODE_BOOKE | PPC_OPCODE_BOOKE64; - else - if ((info->mach == bfd_mach_ppc_e500) - || (info->disassembler_options - && ( strcmp (info->disassembler_options, "e500") == 0 - || strcmp (info->disassembler_options, "e500x2") == 0))) - { - dialect |= PPC_OPCODE_BOOKE - | PPC_OPCODE_SPE | PPC_OPCODE_ISEL - | PPC_OPCODE_EFS | PPC_OPCODE_BRLOCK - | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK - | PPC_OPCODE_RFMCI; - /* efs* and AltiVec conflict. */ - dialect &= ~PPC_OPCODE_ALTIVEC; - } - else - if (info->disassembler_options - && (strcmp (info->disassembler_options, "efs") == 0)) - { - dialect |= PPC_OPCODE_EFS; - /* efs* and AltiVec conflict. */ - dialect &= ~PPC_OPCODE_ALTIVEC; - } + else if ((info->mach == bfd_mach_ppc_e500) + || (info->disassembler_options + && strstr (info->disassembler_options, "e500") != NULL)) + { + dialect |= PPC_OPCODE_BOOKE + | PPC_OPCODE_SPE | PPC_OPCODE_ISEL + | PPC_OPCODE_EFS | PPC_OPCODE_BRLOCK + | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK + | PPC_OPCODE_RFMCI; + /* efs* and AltiVec conflict. */ + dialect &= ~PPC_OPCODE_ALTIVEC; + } + else if (info->disassembler_options + && strstr (info->disassembler_options, "efs") != NULL) + { + dialect |= PPC_OPCODE_EFS; + /* efs* and AltiVec conflict. */ + dialect &= ~PPC_OPCODE_ALTIVEC; + } else dialect |= (PPC_OPCODE_403 | PPC_OPCODE_601 | PPC_OPCODE_CLASSIC | PPC_OPCODE_COMMON); if (info->disassembler_options - && strcmp (info->disassembler_options, "power4") == 0) + && strstr (info->disassembler_options, "power4") != NULL) dialect |= PPC_OPCODE_POWER4; + if (info->disassembler_options + && strstr (info->disassembler_options, "any") != NULL) + dialect |= PPC_OPCODE_ANY; + if (info->disassembler_options) { if (strstr (info->disassembler_options, "32") != NULL) @@ -87,6 +91,7 @@ powerpc_dialect (struct disassemble_info *info) dialect |= PPC_OPCODE_64; } + ((struct dis_private *) &info->private_data)->dialect = dialect; return dialect; } @@ -95,7 +100,8 @@ powerpc_dialect (struct disassemble_info *info) int print_insn_big_powerpc (bfd_vma memaddr, struct disassemble_info *info) { - return print_insn_powerpc (memaddr, info, 1, powerpc_dialect(info)); + int dialect = ((struct dis_private *) &info->private_data)->dialect; + return print_insn_powerpc (memaddr, info, 1, dialect); } /* Print a little endian PowerPC instruction. */ @@ -103,7 +109,8 @@ print_insn_big_powerpc (bfd_vma memaddr, struct disassemble_info *info) int print_insn_little_powerpc (bfd_vma memaddr, struct disassemble_info *info) { - return print_insn_powerpc (memaddr, info, 0, powerpc_dialect(info)); + int dialect = ((struct dis_private *) &info->private_data)->dialect; + return print_insn_powerpc (memaddr, info, 0, dialect); } /* Print a POWER (RS/6000) instruction. */ @@ -129,6 +136,9 @@ print_insn_powerpc (bfd_vma memaddr, const struct powerpc_opcode *opcode_end; unsigned long op; + if (dialect == 0) + dialect = powerpc_dialect (info); + status = (*info->read_memory_func) (memaddr, buffer, 4, info); if (status != 0) { @@ -147,6 +157,7 @@ print_insn_powerpc (bfd_vma memaddr, /* Find the first match in the opcode table. We could speed this up a bit by doing a binary search on the major opcode. */ opcode_end = powerpc_opcodes + powerpc_num_opcodes; + again: for (opcode = powerpc_opcodes; opcode < opcode_end; opcode++) { unsigned long table_op; @@ -166,9 +177,6 @@ print_insn_powerpc (bfd_vma memaddr, || (opcode->flags & dialect) == 0) continue; - if ((dialect & PPC_OPCODE_EFS) && (opcode->flags & PPC_OPCODE_ALTIVEC)) - continue; - /* Make two passes over the operands. First see if any of them have extraction functions, and, if they do, make sure the instruction is valid. */ @@ -277,6 +285,12 @@ print_insn_powerpc (bfd_vma memaddr, return 4; } + if ((dialect & PPC_OPCODE_ANY) != 0) + { + dialect = ~PPC_OPCODE_ANY; + goto again; + } + /* We could not find a match. */ (*info->fprintf_func) (info->stream, ".long 0x%lx", insn); |