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| author | Jose E. Marchesi <jose.marchesi@oracle.com> | 2020-06-04 16:14:41 +0200 |
|---|---|---|
| committer | Jose E. Marchesi <jose.marchesi@oracle.com> | 2020-06-04 16:17:42 +0200 |
| commit | b3db6d07be467fe86f5b4185a8fc7bec49380c1f (patch) | |
| tree | 8486190d571c898ad12e24350e5e06a59a5bfac0 /opcodes/or1k-desc.c | |
| parent | 0cfcd4f003ce0ed5467fd0ceeff4a191439c5923 (diff) | |
| download | gdb-b3db6d07be467fe86f5b4185a8fc7bec49380c1f.zip gdb-b3db6d07be467fe86f5b4185a8fc7bec49380c1f.tar.gz gdb-b3db6d07be467fe86f5b4185a8fc7bec49380c1f.tar.bz2 | |
opcodes: support insn endianness in cgen_cpu_open
This patch adds support for a new CGEN_OPEN_INSN_ENDIAN argument
for @arch@_cgen_cpu_open. This is useful for architectures in
which the endianness of the instruction words is not the same
than the endianness used for data.
An accompanying patch has been sent to the CGEN mailing list that
adds support for this argument on the CGEN side [1]. Its been
already pre-approved [2], and will be applied simultaneously with
this binutils series.
[1] https://sourceware.org/pipermail/cgen/2020q2/002733.html
[2] https://sourceware.org/pipermail/cgen/2020q2/002737.html
include/ChangeLog:
2020-06-04 Jose E. Marchesi <jemarch@gnu.org>
* opcode/cgen.h (enum cgen_cpu_open_arg): New value
CGEN_CPU_OPEN_INSN_ENDIAN.
opcodes/ChangeLog:
2020-06-04 Jose E. Marchesi <jemarch@gnu.org>
* cgen-dis.in (cpu_desc_list): New field `insn_endian'.
(print_insn_): Handle instruction endian.
* bpf-dis.c: Regenerate.
* bpf-desc.c: Regenerate.
* epiphany-dis.c: Likewise.
* epiphany-desc.c: Likewise.
* fr30-dis.c: Likewise.
* fr30-desc.c: Likewise.
* frv-dis.c: Likewise.
* frv-desc.c: Likewise.
* ip2k-dis.c: Likewise.
* ip2k-desc.c: Likewise.
* iq2000-dis.c: Likewise.
* iq2000-desc.c: Likewise.
* lm32-dis.c: Likewise.
* lm32-desc.c: Likewise.
* m32c-dis.c: Likewise.
* m32c-desc.c: Likewise.
* m32r-dis.c: Likewise.
* m32r-desc.c: Likewise.
* mep-dis.c: Likewise.
* mep-desc.c: Likewise.
* mt-dis.c: Likewise.
* mt-desc.c: Likewise.
* or1k-dis.c: Likewise.
* or1k-desc.c: Likewise.
* xc16x-dis.c: Likewise.
* xc16x-desc.c: Likewise.
* xstormy16-dis.c: Likewise.
* xstormy16-desc.c: Likewise.
binutils/ChangeLog:
2020-06-04 Jose E. Marchesi <jose.marchesi@oracle.com>
* objdump.c (disassemble_data): Set disasm_info.endian_code to
disasm_info.endian after the latter is initialized to the
endianness reported by BFD.
Diffstat (limited to 'opcodes/or1k-desc.c')
| -rw-r--r-- | opcodes/or1k-desc.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/opcodes/or1k-desc.c b/opcodes/or1k-desc.c index 8bf986d..a4f32d6 100644 --- a/opcodes/or1k-desc.c +++ b/opcodes/or1k-desc.c @@ -2070,6 +2070,7 @@ or1k_cgen_rebuild_tables (CGEN_CPU_TABLE *cd) CGEN_CPU_OPEN_MACHS: bitmap of values in enum mach_attr CGEN_CPU_OPEN_BFDMACH: specify 1 mach using bfd name CGEN_CPU_OPEN_ENDIAN: specify endian choice + CGEN_CPU_OPEN_INSN_ENDIAN: specify instruction endian choice CGEN_CPU_OPEN_END: terminates arguments ??? Simultaneous multiple isas might not make sense, but it's not (yet) @@ -2083,6 +2084,7 @@ or1k_cgen_cpu_open (enum cgen_cpu_open_arg arg_type, ...) CGEN_BITSET *isas = 0; /* 0 = "unspecified" */ unsigned int machs = 0; /* 0 = "unspecified" */ enum cgen_endian endian = CGEN_ENDIAN_UNKNOWN; + enum cgen_endian insn_endian = CGEN_ENDIAN_UNKNOWN; va_list ap; if (! init_p) @@ -2117,6 +2119,9 @@ or1k_cgen_cpu_open (enum cgen_cpu_open_arg arg_type, ...) case CGEN_CPU_OPEN_ENDIAN : endian = va_arg (ap, enum cgen_endian); break; + case CGEN_CPU_OPEN_INSN_ENDIAN : + insn_endian = va_arg (ap, enum cgen_endian); + break; default : opcodes_error_handler (/* xgettext:c-format */ @@ -2146,11 +2151,8 @@ or1k_cgen_cpu_open (enum cgen_cpu_open_arg arg_type, ...) cd->isas = cgen_bitset_copy (isas); cd->machs = machs; cd->endian = endian; - /* FIXME: for the sparc case we can determine insn-endianness statically. - The worry here is where both data and insn endian can be independently - chosen, in which case this function will need another argument. - Actually, will want to allow for more arguments in the future anyway. */ - cd->insn_endian = endian; + cd->insn_endian + = (insn_endian == CGEN_ENDIAN_UNKNOWN ? endian : insn_endian); /* Table (re)builder. */ cd->rebuild_tables = or1k_cgen_rebuild_tables; |