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opcodes: support insn endianness in cgen_cpu_open

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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.
This commit is contained in:
Jose E. Marchesi 2020-06-04 16:14:41 +02:00
parent 0cfcd4f003
commit b3db6d07be
34 changed files with 257 additions and 71 deletions
Download patch file Download diff file Expand all files Collapse all files

7
opcodes/m32c-dis.c
View file

@ -1195,6 +1195,7 @@ typedef struct cpu_desc_list
CGEN_BITSET *isa;
int mach;
int endian;
int insn_endian;
CGEN_CPU_DESC cd;
} cpu_desc_list;
@ -1207,12 +1208,16 @@ print_insn_m32c (bfd_vma pc, disassemble_info *info)
static CGEN_BITSET *prev_isa;
static int prev_mach;
static int prev_endian;
static int prev_insn_endian;
int length;
CGEN_BITSET *isa;
int mach;
int endian = (info->endian == BFD_ENDIAN_BIG
? CGEN_ENDIAN_BIG
: CGEN_ENDIAN_LITTLE);
int insn_endian = (info->endian_code == BFD_ENDIAN_BIG
? CGEN_ENDIAN_BIG
: CGEN_ENDIAN_LITTLE);
enum bfd_architecture arch;
/* ??? gdb will set mach but leave the architecture as "unknown" */
@ -1278,9 +1283,11 @@ print_insn_m32c (bfd_vma pc, disassemble_info *info)
prev_isa = cgen_bitset_copy (isa);
prev_mach = mach;
prev_endian = endian;
prev_insn_endian = insn_endian;
cd = m32c_cgen_cpu_open (CGEN_CPU_OPEN_ISAS, prev_isa,
CGEN_CPU_OPEN_BFDMACH, mach_name,
CGEN_CPU_OPEN_ENDIAN, prev_endian,
CGEN_CPU_OPEN_INSN_ENDIAN, prev_insn_endian,
CGEN_CPU_OPEN_END);
if (!cd)
abort ();