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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

9
include/opcode/cgen.h
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@ -1392,7 +1392,9 @@ enum cgen_cpu_open_arg {
Multiple machines can be specified by repeated use. */
CGEN_CPU_OPEN_BFDMACH,
/* Select endian, arg is CGEN_ENDIAN_*. */
CGEN_CPU_OPEN_ENDIAN
CGEN_CPU_OPEN_ENDIAN,
/* Select instruction endian, arg is CGEN_ENDIAN_*. */
CGEN_CPU_OPEN_INSN_ENDIAN,
};
/* Open a cpu descriptor table for use.
@ -1465,6 +1467,11 @@ extern CGEN_INSN_INT cgen_get_insn_value
extern void cgen_put_insn_value
(CGEN_CPU_DESC, unsigned char *, int, CGEN_INSN_INT);
extern CGEN_INSN_INT cgen_get_base_insn_value
(CGEN_CPU_DESC, unsigned char *, int);
extern void cgen_put_base_insn_value
(CGEN_CPU_DESC, unsigned char *, int, CGEN_INSN_INT);
/* Read in a cpu description file.
??? For future concerns, including adding instructions to the assembler/
disassembler at run-time. */