bpf: fix error conversion from long unsigned int to unsigned int [-Werror=overflow]

Message ID 20230107154743.624854-1-guillermo.e.martinez@oracle.com
State Accepted
Headers
Series bpf: fix error conversion from long unsigned int to unsigned int [-Werror=overflow] |

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Context Check Description
snail/binutils-gdb-check success Github commit url

Commit Message

Guillermo E. Martinez Jan. 7, 2023, 3:47 p.m. UTC
  This is patch-v2 meant to fix compiling errors when maintainer mode is
enable to BPF target.

Changes from v1:
  + Adjust type for mask bit width in cgen-dis.c.
  + Looking for regressions on 134 CGEN targets.
  + Tweak change log message.

Please let me know your comments, I'll really appreciate them.

Kind regards,
guillermo
--

Regenerating BPF target using the maintainer mode emits:
.../opcodes/bpf-opc.c:57:11: error: conversion from ‘long unsigned int’ to ‘unsigned int’ changes value from ‘18446744073709486335’ to ‘4294902015’ [-Werror=overflow]
  57 |   64, 64, 0xffffffffffff00ff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_CODE) }, { F (F_DSTLE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }

The use of a narrow size to handle the mask CGEN in instruction format
is causing this error.  Additionally eBPF `call' instructions
constructed by expressions using symbols (BPF_PSEUDO_CALL) emits
annotations in `src' field of the instruction, it's used to identify BPF
target endianness.

Regression tests to the following targets were done:

bpf arm-linuxeabi arm-nacl arm-netbsdelf arm-nto arm-pe
arm-symbianelf arm-vxworks arm-wince-pe aarch64-linux alpha-dec-vms
alpha-linux alpha-linuxecoff alpha-netbsd alpha-unknown-freebsd4.7
am33_2.0-linux arc-linux-uclibc avr-elf bfin-elf cr16-elf cris-elf
crisv32-linux crx-elf d10v-elf d30v-elf dlx-elf epiphany-elf fr30-elf
frv-elf frv-linux ft32-elf h8300-elf hppa-linux hppa-hp-hpux10
hppa64-hp-hpux11.23 hppa64-linux mips-linux mips-vxworks mips64-linux
mipsel-linux-gnu mipsisa32el-linux mips64-openbsd mipstx39-elf
ia64-elf ia64-freebsd5 ia64-hpux ia64-linux ia64-netbsd ia64-vms
ip2k-elf iq2000-elf lm32-elf m32c-elf m32r-elf m68hc11-elf
m68hc12-elf m68k-elf m68k-linux m68k-netbsd mcore-elf mcore-pe
mep-elf metag-linux microblaze-elf mmix mn10200-elf mn10300-elf
moxie-elf ms1-elf msp430-elf mt-elf nds32le-elf nios2-linux or1k-elf
pdp11-dec-aout pj-elf powerpc-eabisim powerpc-eabivle powerpc-linux
powerpc-nto powerpc-wrs-vxworks powerpc64-linux powerpcle-cygwin
powerpcle-elf powerpc64le-linux ppc-lynxos pru-elf riscv32-elf
riscv64-elf rl78-elf rs6000-aix4.3.3 rs6000-aix5.1 rx-elf s390-linux
s390x-linux score-elf sh-linux sh-nto sh-pe sh-rtems sh-vxworks
shl-unknown-netbsdelf sparc-aout sparc-linux sparc-vxworks
sparc64-linux sparc-sun-solaris2.12 spu-elf tic30-unknown-aout
tic30-unknown-coff tic4x-coff tic54x-coff tic6x-elf tilegx-linux
tilepro-linux v850-elf vax-netbsdelf visium-elf i386-darwin
i386-lynxos i586-linux i686-nacl i686-pc-beos i686-pc-elf i686-pe
i686-vxworks x86_64-linux x86_64-w64-mingw32 x86_64-nacl xgate-elf
xstormy16-elf xtensa-elf z8k-coff z80-coff.

cpu/
	* bpf.cpu (define-call-insn): Add `src' operand field to
	the instruction.

include/
	*opcode/cge.h (CGEN_IFMT): Adjust mask bit width.

opcodes/
	* cgen-dis.c (count_decodable_bits): Adjust type for mask bit width.
	* bpf-opc.c: Regenerate.
---
 cpu/bpf.cpu           |  2 +-
 include/opcode/cgen.h |  2 +-
 opcodes/bpf-opc.c     | 54 +++++++++++++++++++++++--------------------
 opcodes/cgen-dis.c    |  2 +-
 4 files changed, 32 insertions(+), 28 deletions(-)
  

Comments

Guillermo E. Martinez Jan. 11, 2023, 11:37 p.m. UTC | #1
Hello,

Just to know if there is any comment for this patch,

Thanks in advanced!,
guillermo

On Sat, Jan 07, 2023 at 09:47:43AM -0600, Guillermo E. Martinez wrote:
> This is patch-v2 meant to fix compiling errors when maintainer mode is
> enable to BPF target.
> 
> Changes from v1:
>   + Adjust type for mask bit width in cgen-dis.c.
>   + Looking for regressions on 134 CGEN targets.
>   + Tweak change log message.
> 
> Please let me know your comments, I'll really appreciate them.
> 
> Kind regards,
> guillermo
> --
> 
> Regenerating BPF target using the maintainer mode emits:
> .../opcodes/bpf-opc.c:57:11: error: conversion from ‘long unsigned int’ to ‘unsigned int’ changes value from ‘18446744073709486335’ to ‘4294902015’ [-Werror=overflow]
>   57 |   64, 64, 0xffffffffffff00ff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_CODE) }, { F (F_DSTLE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
> 
> The use of a narrow size to handle the mask CGEN in instruction format
> is causing this error.  Additionally eBPF `call' instructions
> constructed by expressions using symbols (BPF_PSEUDO_CALL) emits
> annotations in `src' field of the instruction, it's used to identify BPF
> target endianness.
> 
> Regression tests to the following targets were done:
> 
> bpf arm-linuxeabi arm-nacl arm-netbsdelf arm-nto arm-pe
> arm-symbianelf arm-vxworks arm-wince-pe aarch64-linux alpha-dec-vms
> alpha-linux alpha-linuxecoff alpha-netbsd alpha-unknown-freebsd4.7
> am33_2.0-linux arc-linux-uclibc avr-elf bfin-elf cr16-elf cris-elf
> crisv32-linux crx-elf d10v-elf d30v-elf dlx-elf epiphany-elf fr30-elf
> frv-elf frv-linux ft32-elf h8300-elf hppa-linux hppa-hp-hpux10
> hppa64-hp-hpux11.23 hppa64-linux mips-linux mips-vxworks mips64-linux
> mipsel-linux-gnu mipsisa32el-linux mips64-openbsd mipstx39-elf
> ia64-elf ia64-freebsd5 ia64-hpux ia64-linux ia64-netbsd ia64-vms
> ip2k-elf iq2000-elf lm32-elf m32c-elf m32r-elf m68hc11-elf
> m68hc12-elf m68k-elf m68k-linux m68k-netbsd mcore-elf mcore-pe
> mep-elf metag-linux microblaze-elf mmix mn10200-elf mn10300-elf
> moxie-elf ms1-elf msp430-elf mt-elf nds32le-elf nios2-linux or1k-elf
> pdp11-dec-aout pj-elf powerpc-eabisim powerpc-eabivle powerpc-linux
> powerpc-nto powerpc-wrs-vxworks powerpc64-linux powerpcle-cygwin
> powerpcle-elf powerpc64le-linux ppc-lynxos pru-elf riscv32-elf
> riscv64-elf rl78-elf rs6000-aix4.3.3 rs6000-aix5.1 rx-elf s390-linux
> s390x-linux score-elf sh-linux sh-nto sh-pe sh-rtems sh-vxworks
> shl-unknown-netbsdelf sparc-aout sparc-linux sparc-vxworks
> sparc64-linux sparc-sun-solaris2.12 spu-elf tic30-unknown-aout
> tic30-unknown-coff tic4x-coff tic54x-coff tic6x-elf tilegx-linux
> tilepro-linux v850-elf vax-netbsdelf visium-elf i386-darwin
> i386-lynxos i586-linux i686-nacl i686-pc-beos i686-pc-elf i686-pe
> i686-vxworks x86_64-linux x86_64-w64-mingw32 x86_64-nacl xgate-elf
> xstormy16-elf xtensa-elf z8k-coff z80-coff.
> 
> cpu/
> 	* bpf.cpu (define-call-insn): Add `src' operand field to
> 	the instruction.
> 
> include/
> 	*opcode/cge.h (CGEN_IFMT): Adjust mask bit width.
> 
> opcodes/
> 	* cgen-dis.c (count_decodable_bits): Adjust type for mask bit width.
> 	* bpf-opc.c: Regenerate.
> ---
>  cpu/bpf.cpu           |  2 +-
>  include/opcode/cgen.h |  2 +-
>  opcodes/bpf-opc.c     | 54 +++++++++++++++++++++++--------------------
>  opcodes/cgen-dis.c    |  2 +-
>  4 files changed, 32 insertions(+), 28 deletions(-)
> 
> diff --git a/cpu/bpf.cpu b/cpu/bpf.cpu
> index 13dde7094c8..2ae74fc4c18 100644
> --- a/cpu/bpf.cpu
> +++ b/cpu/bpf.cpu
> @@ -768,7 +768,7 @@
>         "call"
>         (endian-isas x-endian)
>         "call $disp32"
> -       (+ disp32 (f-offset16 0) (f-regs 0)
> +       (+ disp32 (f-offset16 0) (.sym src x-endian) ((.sym f-dst x-endian) 0)
>            OP_CLASS_JMP OP_SRC_K OP_CODE_CALL)
>         (c-call VOID
>                 "bpfbf_call" disp32 (ifield (.sym f-src x-endian)))
> diff --git a/include/opcode/cgen.h b/include/opcode/cgen.h
> index 36b88f1b5fe..6c0732b4b25 100644
> --- a/include/opcode/cgen.h
> +++ b/include/opcode/cgen.h
> @@ -914,7 +914,7 @@ typedef struct
>       Each insn's value is stored with the insn.
>       The first step in recognizing an insn for disassembly is
>       (opcode & mask) == value.  */
> -  CGEN_INSN_INT mask;
> +  CGEN_INSN_LGUINT mask;
>  #define CGEN_IFMT_MASK(ifmt) ((ifmt)->mask)
>  
>    /* Instruction fields.
> diff --git a/opcodes/bpf-opc.c b/opcodes/bpf-opc.c
> index a6d8a7dd3ca..1cc06f7cbf6 100644
> --- a/opcodes/bpf-opc.c
> +++ b/opcodes/bpf-opc.c
> @@ -50,99 +50,103 @@ static const CGEN_IFMT ifmt_empty ATTRIBUTE_UNUSED = {
>  };
>  
>  static const CGEN_IFMT ifmt_addile ATTRIBUTE_UNUSED = {
> -  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_CODE) }, { F (F_DSTLE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
> +  64, 64, 0xfffff0ff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_CODE) }, { F (F_DSTLE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
>  };
>  
>  static const CGEN_IFMT ifmt_addrle ATTRIBUTE_UNUSED = {
> -  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_CODE) }, { F (F_DSTLE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
> +  64, 64, 0xffffffffffff00ff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_CODE) }, { F (F_DSTLE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
>  };
>  
>  static const CGEN_IFMT ifmt_negle ATTRIBUTE_UNUSED = {
> -  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_CODE) }, { F (F_DSTLE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
> +  64, 64, 0xfffffffffffff0ff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_CODE) }, { F (F_DSTLE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
>  };
>  
>  static const CGEN_IFMT ifmt_addibe ATTRIBUTE_UNUSED = {
> -  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_CODE) }, { F (F_SRCBE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
> +  64, 64, 0xffff0fff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_CODE) }, { F (F_SRCBE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
>  };
>  
>  static const CGEN_IFMT ifmt_addrbe ATTRIBUTE_UNUSED = {
> -  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_CODE) }, { F (F_SRCBE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
> +  64, 64, 0xffffffffffff00ff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_CODE) }, { F (F_SRCBE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
>  };
>  
>  static const CGEN_IFMT ifmt_negbe ATTRIBUTE_UNUSED = {
> -  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_CODE) }, { F (F_SRCBE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
> +  64, 64, 0xffffffffffff0fff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_CODE) }, { F (F_SRCBE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
>  };
>  
>  static const CGEN_IFMT ifmt_endlele ATTRIBUTE_UNUSED = {
> -  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_CODE) }, { F (F_DSTLE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
> +  64, 64, 0xfffff0ff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_CODE) }, { F (F_DSTLE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
>  };
>  
>  static const CGEN_IFMT ifmt_endlebe ATTRIBUTE_UNUSED = {
> -  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_CODE) }, { F (F_SRCBE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
> +  64, 64, 0xffff0fff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_CODE) }, { F (F_SRCBE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
>  };
>  
>  static const CGEN_IFMT ifmt_lddwle ATTRIBUTE_UNUSED = {
> -  64, 128, 0xff, { { F (F_IMM64) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_DSTLE) }, { F (F_OP_CLASS) }, { 0 } }
> +  64, 128, 0xfffff0ff, { { F (F_IMM64) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_DSTLE) }, { F (F_OP_CLASS) }, { 0 } }
>  };
>  
>  static const CGEN_IFMT ifmt_lddwbe ATTRIBUTE_UNUSED = {
> -  64, 128, 0xff, { { F (F_IMM64) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_SRCBE) }, { F (F_OP_CLASS) }, { 0 } }
> +  64, 128, 0xffff0fff, { { F (F_IMM64) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_SRCBE) }, { F (F_OP_CLASS) }, { 0 } }
>  };
>  
>  static const CGEN_IFMT ifmt_ldabsw ATTRIBUTE_UNUSED = {
> -  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_REGS) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_OP_CLASS) }, { 0 } }
> +  64, 64, 0xffffffff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_REGS) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_OP_CLASS) }, { 0 } }
>  };
>  
>  static const CGEN_IFMT ifmt_ldindwle ATTRIBUTE_UNUSED = {
> -  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_DSTLE) }, { F (F_OP_CLASS) }, { 0 } }
> +  64, 64, 0xffff0fff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_DSTLE) }, { F (F_OP_CLASS) }, { 0 } }
>  };
>  
>  static const CGEN_IFMT ifmt_ldindwbe ATTRIBUTE_UNUSED = {
> -  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_SRCBE) }, { F (F_OP_CLASS) }, { 0 } }
> +  64, 64, 0xfffff0ff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_SRCBE) }, { F (F_OP_CLASS) }, { 0 } }
>  };
>  
>  static const CGEN_IFMT ifmt_ldxwle ATTRIBUTE_UNUSED = {
> -  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_DSTLE) }, { F (F_OP_CLASS) }, { 0 } }
> +  64, 64, 0xffffffff000000ff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_DSTLE) }, { F (F_OP_CLASS) }, { 0 } }
>  };
>  
>  static const CGEN_IFMT ifmt_ldxwbe ATTRIBUTE_UNUSED = {
> -  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_SRCBE) }, { F (F_OP_CLASS) }, { 0 } }
> +  64, 64, 0xffffffff000000ff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_SRCBE) }, { F (F_OP_CLASS) }, { 0 } }
>  };
>  
>  static const CGEN_IFMT ifmt_stble ATTRIBUTE_UNUSED = {
> -  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_DSTLE) }, { F (F_OP_CLASS) }, { 0 } }
> +  64, 64, 0xf0ff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_DSTLE) }, { F (F_OP_CLASS) }, { 0 } }
>  };
>  
>  static const CGEN_IFMT ifmt_stbbe ATTRIBUTE_UNUSED = {
> -  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_SRCBE) }, { F (F_OP_CLASS) }, { 0 } }
> +  64, 64, 0xfff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_SRCBE) }, { F (F_OP_CLASS) }, { 0 } }
>  };
>  
>  static const CGEN_IFMT ifmt_jeqile ATTRIBUTE_UNUSED = {
> -  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_CODE) }, { F (F_DSTLE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
> +  64, 64, 0xf0ff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_CODE) }, { F (F_DSTLE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
>  };
>  
>  static const CGEN_IFMT ifmt_jeqrle ATTRIBUTE_UNUSED = {
> -  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_CODE) }, { F (F_DSTLE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
> +  64, 64, 0xffffffff000000ff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_CODE) }, { F (F_DSTLE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
>  };
>  
>  static const CGEN_IFMT ifmt_jeqibe ATTRIBUTE_UNUSED = {
> -  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_CODE) }, { F (F_SRCBE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
> +  64, 64, 0xfff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_CODE) }, { F (F_SRCBE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
>  };
>  
>  static const CGEN_IFMT ifmt_jeqrbe ATTRIBUTE_UNUSED = {
> -  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_CODE) }, { F (F_SRCBE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
> +  64, 64, 0xffffffff000000ff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_CODE) }, { F (F_SRCBE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
>  };
>  
>  static const CGEN_IFMT ifmt_callle ATTRIBUTE_UNUSED = {
> -  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_REGS) }, { F (F_OP_CODE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
> +  64, 64, 0xffff0fff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_CODE) }, { F (F_DSTLE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
> +};
> +
> +static const CGEN_IFMT ifmt_callbe ATTRIBUTE_UNUSED = {
> +  64, 64, 0xfffff0ff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_CODE) }, { F (F_SRCBE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
>  };
>  
>  static const CGEN_IFMT ifmt_ja ATTRIBUTE_UNUSED = {
> -  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_REGS) }, { F (F_OP_CODE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
> +  64, 64, 0xffffffff0000ffff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_REGS) }, { F (F_OP_CODE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
>  };
>  
>  static const CGEN_IFMT ifmt_exit ATTRIBUTE_UNUSED = {
> -  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_REGS) }, { F (F_OP_CODE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
> +  64, 64, 0xffffffffffffffff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_REGS) }, { F (F_OP_CODE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
>  };
>  
>  #undef F
> @@ -1646,7 +1650,7 @@ static const CGEN_OPCODE bpf_cgen_insn_opcode_table[MAX_INSNS] =
>    {
>      { 0, 0, 0, 0 },
>      { { MNEM, ' ', OP (DISP32), 0 } },
> -    & ifmt_callle, { 0x85 }
> +    & ifmt_callbe, { 0x85 }
>    },
>  /* call $dstle */
>    {
> diff --git a/opcodes/cgen-dis.c b/opcodes/cgen-dis.c
> index de315d90cfc..90746a845ed 100644
> --- a/opcodes/cgen-dis.c
> +++ b/opcodes/cgen-dis.c
> @@ -39,7 +39,7 @@ static void		 add_insn_to_hash_chain (CGEN_INSN_LIST *,
>  static int
>  count_decodable_bits (const CGEN_INSN *insn)
>  {
> -  unsigned mask = CGEN_INSN_BASE_MASK (insn);
> +  CGEN_INSN_LGUINT mask = CGEN_INSN_BASE_MASK (insn);
>  #if GCC_VERSION >= 3004
>    return __builtin_popcount (mask);
>  #else
> -- 
> 2.39.0
>
  
Jose E. Marchesi Jan. 11, 2023, 11:54 p.m. UTC | #2
> Just to know if there is any comment for this patch,

I already approved the BPF part.

And I think Alan OKed the opcodes part, provided it doesn't introduce
any regression in any of the cgen-based targets, which you already
confirmed it doesn't.

So I would say this is ready to go in?

>
> Thanks in advanced!,
> guillermo
>
> On Sat, Jan 07, 2023 at 09:47:43AM -0600, Guillermo E. Martinez wrote:
>> This is patch-v2 meant to fix compiling errors when maintainer mode is
>> enable to BPF target.
>> 
>> Changes from v1:
>>   + Adjust type for mask bit width in cgen-dis.c.
>>   + Looking for regressions on 134 CGEN targets.
>>   + Tweak change log message.
>> 
>> Please let me know your comments, I'll really appreciate them.
>> 
>> Kind regards,
>> guillermo
>> --
>> 
>> Regenerating BPF target using the maintainer mode emits:
>> .../opcodes/bpf-opc.c:57:11: error: conversion from ‘long unsigned int’ to ‘unsigned int’ changes value from ‘18446744073709486335’ to ‘4294902015’ [-Werror=overflow]
>>   57 |   64, 64, 0xffffffffffff00ff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_CODE) }, { F (F_DSTLE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
>> 
>> The use of a narrow size to handle the mask CGEN in instruction format
>> is causing this error.  Additionally eBPF `call' instructions
>> constructed by expressions using symbols (BPF_PSEUDO_CALL) emits
>> annotations in `src' field of the instruction, it's used to identify BPF
>> target endianness.
>> 
>> Regression tests to the following targets were done:
>> 
>> bpf arm-linuxeabi arm-nacl arm-netbsdelf arm-nto arm-pe
>> arm-symbianelf arm-vxworks arm-wince-pe aarch64-linux alpha-dec-vms
>> alpha-linux alpha-linuxecoff alpha-netbsd alpha-unknown-freebsd4.7
>> am33_2.0-linux arc-linux-uclibc avr-elf bfin-elf cr16-elf cris-elf
>> crisv32-linux crx-elf d10v-elf d30v-elf dlx-elf epiphany-elf fr30-elf
>> frv-elf frv-linux ft32-elf h8300-elf hppa-linux hppa-hp-hpux10
>> hppa64-hp-hpux11.23 hppa64-linux mips-linux mips-vxworks mips64-linux
>> mipsel-linux-gnu mipsisa32el-linux mips64-openbsd mipstx39-elf
>> ia64-elf ia64-freebsd5 ia64-hpux ia64-linux ia64-netbsd ia64-vms
>> ip2k-elf iq2000-elf lm32-elf m32c-elf m32r-elf m68hc11-elf
>> m68hc12-elf m68k-elf m68k-linux m68k-netbsd mcore-elf mcore-pe
>> mep-elf metag-linux microblaze-elf mmix mn10200-elf mn10300-elf
>> moxie-elf ms1-elf msp430-elf mt-elf nds32le-elf nios2-linux or1k-elf
>> pdp11-dec-aout pj-elf powerpc-eabisim powerpc-eabivle powerpc-linux
>> powerpc-nto powerpc-wrs-vxworks powerpc64-linux powerpcle-cygwin
>> powerpcle-elf powerpc64le-linux ppc-lynxos pru-elf riscv32-elf
>> riscv64-elf rl78-elf rs6000-aix4.3.3 rs6000-aix5.1 rx-elf s390-linux
>> s390x-linux score-elf sh-linux sh-nto sh-pe sh-rtems sh-vxworks
>> shl-unknown-netbsdelf sparc-aout sparc-linux sparc-vxworks
>> sparc64-linux sparc-sun-solaris2.12 spu-elf tic30-unknown-aout
>> tic30-unknown-coff tic4x-coff tic54x-coff tic6x-elf tilegx-linux
>> tilepro-linux v850-elf vax-netbsdelf visium-elf i386-darwin
>> i386-lynxos i586-linux i686-nacl i686-pc-beos i686-pc-elf i686-pe
>> i686-vxworks x86_64-linux x86_64-w64-mingw32 x86_64-nacl xgate-elf
>> xstormy16-elf xtensa-elf z8k-coff z80-coff.
>> 
>> cpu/
>> 	* bpf.cpu (define-call-insn): Add `src' operand field to
>> 	the instruction.
>> 
>> include/
>> 	*opcode/cge.h (CGEN_IFMT): Adjust mask bit width.
>> 
>> opcodes/
>> 	* cgen-dis.c (count_decodable_bits): Adjust type for mask bit width.
>> 	* bpf-opc.c: Regenerate.
>> ---
>>  cpu/bpf.cpu           |  2 +-
>>  include/opcode/cgen.h |  2 +-
>>  opcodes/bpf-opc.c     | 54 +++++++++++++++++++++++--------------------
>>  opcodes/cgen-dis.c    |  2 +-
>>  4 files changed, 32 insertions(+), 28 deletions(-)
>> 
>> diff --git a/cpu/bpf.cpu b/cpu/bpf.cpu
>> index 13dde7094c8..2ae74fc4c18 100644
>> --- a/cpu/bpf.cpu
>> +++ b/cpu/bpf.cpu
>> @@ -768,7 +768,7 @@
>>         "call"
>>         (endian-isas x-endian)
>>         "call $disp32"
>> -       (+ disp32 (f-offset16 0) (f-regs 0)
>> +       (+ disp32 (f-offset16 0) (.sym src x-endian) ((.sym f-dst x-endian) 0)
>>            OP_CLASS_JMP OP_SRC_K OP_CODE_CALL)
>>         (c-call VOID
>>                 "bpfbf_call" disp32 (ifield (.sym f-src x-endian)))
>> diff --git a/include/opcode/cgen.h b/include/opcode/cgen.h
>> index 36b88f1b5fe..6c0732b4b25 100644
>> --- a/include/opcode/cgen.h
>> +++ b/include/opcode/cgen.h
>> @@ -914,7 +914,7 @@ typedef struct
>>       Each insn's value is stored with the insn.
>>       The first step in recognizing an insn for disassembly is
>>       (opcode & mask) == value.  */
>> -  CGEN_INSN_INT mask;
>> +  CGEN_INSN_LGUINT mask;
>>  #define CGEN_IFMT_MASK(ifmt) ((ifmt)->mask)
>>  
>>    /* Instruction fields.
>> diff --git a/opcodes/bpf-opc.c b/opcodes/bpf-opc.c
>> index a6d8a7dd3ca..1cc06f7cbf6 100644
>> --- a/opcodes/bpf-opc.c
>> +++ b/opcodes/bpf-opc.c
>> @@ -50,99 +50,103 @@ static const CGEN_IFMT ifmt_empty ATTRIBUTE_UNUSED = {
>>  };
>>  
>>  static const CGEN_IFMT ifmt_addile ATTRIBUTE_UNUSED = {
>> -  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_CODE) }, { F (F_DSTLE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
>> +  64, 64, 0xfffff0ff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_CODE) }, { F (F_DSTLE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
>>  };
>>  
>>  static const CGEN_IFMT ifmt_addrle ATTRIBUTE_UNUSED = {
>> -  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_CODE) }, { F (F_DSTLE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
>> +  64, 64, 0xffffffffffff00ff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_CODE) }, { F (F_DSTLE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
>>  };
>>  
>>  static const CGEN_IFMT ifmt_negle ATTRIBUTE_UNUSED = {
>> -  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_CODE) }, { F (F_DSTLE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
>> +  64, 64, 0xfffffffffffff0ff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_CODE) }, { F (F_DSTLE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
>>  };
>>  
>>  static const CGEN_IFMT ifmt_addibe ATTRIBUTE_UNUSED = {
>> -  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_CODE) }, { F (F_SRCBE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
>> +  64, 64, 0xffff0fff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_CODE) }, { F (F_SRCBE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
>>  };
>>  
>>  static const CGEN_IFMT ifmt_addrbe ATTRIBUTE_UNUSED = {
>> -  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_CODE) }, { F (F_SRCBE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
>> +  64, 64, 0xffffffffffff00ff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_CODE) }, { F (F_SRCBE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
>>  };
>>  
>>  static const CGEN_IFMT ifmt_negbe ATTRIBUTE_UNUSED = {
>> -  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_CODE) }, { F (F_SRCBE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
>> +  64, 64, 0xffffffffffff0fff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_CODE) }, { F (F_SRCBE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
>>  };
>>  
>>  static const CGEN_IFMT ifmt_endlele ATTRIBUTE_UNUSED = {
>> -  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_CODE) }, { F (F_DSTLE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
>> +  64, 64, 0xfffff0ff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_CODE) }, { F (F_DSTLE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
>>  };
>>  
>>  static const CGEN_IFMT ifmt_endlebe ATTRIBUTE_UNUSED = {
>> -  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_CODE) }, { F (F_SRCBE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
>> +  64, 64, 0xffff0fff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_CODE) }, { F (F_SRCBE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
>>  };
>>  
>>  static const CGEN_IFMT ifmt_lddwle ATTRIBUTE_UNUSED = {
>> -  64, 128, 0xff, { { F (F_IMM64) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_DSTLE) }, { F (F_OP_CLASS) }, { 0 } }
>> +  64, 128, 0xfffff0ff, { { F (F_IMM64) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_DSTLE) }, { F (F_OP_CLASS) }, { 0 } }
>>  };
>>  
>>  static const CGEN_IFMT ifmt_lddwbe ATTRIBUTE_UNUSED = {
>> -  64, 128, 0xff, { { F (F_IMM64) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_SRCBE) }, { F (F_OP_CLASS) }, { 0 } }
>> +  64, 128, 0xffff0fff, { { F (F_IMM64) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_SRCBE) }, { F (F_OP_CLASS) }, { 0 } }
>>  };
>>  
>>  static const CGEN_IFMT ifmt_ldabsw ATTRIBUTE_UNUSED = {
>> -  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_REGS) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_OP_CLASS) }, { 0 } }
>> +  64, 64, 0xffffffff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_REGS) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_OP_CLASS) }, { 0 } }
>>  };
>>  
>>  static const CGEN_IFMT ifmt_ldindwle ATTRIBUTE_UNUSED = {
>> -  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_DSTLE) }, { F (F_OP_CLASS) }, { 0 } }
>> +  64, 64, 0xffff0fff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_DSTLE) }, { F (F_OP_CLASS) }, { 0 } }
>>  };
>>  
>>  static const CGEN_IFMT ifmt_ldindwbe ATTRIBUTE_UNUSED = {
>> -  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_SRCBE) }, { F (F_OP_CLASS) }, { 0 } }
>> +  64, 64, 0xfffff0ff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_SRCBE) }, { F (F_OP_CLASS) }, { 0 } }
>>  };
>>  
>>  static const CGEN_IFMT ifmt_ldxwle ATTRIBUTE_UNUSED = {
>> -  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_DSTLE) }, { F (F_OP_CLASS) }, { 0 } }
>> +  64, 64, 0xffffffff000000ff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_DSTLE) }, { F (F_OP_CLASS) }, { 0 } }
>>  };
>>  
>>  static const CGEN_IFMT ifmt_ldxwbe ATTRIBUTE_UNUSED = {
>> -  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_SRCBE) }, { F (F_OP_CLASS) }, { 0 } }
>> +  64, 64, 0xffffffff000000ff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_SRCBE) }, { F (F_OP_CLASS) }, { 0 } }
>>  };
>>  
>>  static const CGEN_IFMT ifmt_stble ATTRIBUTE_UNUSED = {
>> -  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_DSTLE) }, { F (F_OP_CLASS) }, { 0 } }
>> +  64, 64, 0xf0ff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_DSTLE) }, { F (F_OP_CLASS) }, { 0 } }
>>  };
>>  
>>  static const CGEN_IFMT ifmt_stbbe ATTRIBUTE_UNUSED = {
>> -  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_SRCBE) }, { F (F_OP_CLASS) }, { 0 } }
>> +  64, 64, 0xfff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_SRCBE) }, { F (F_OP_CLASS) }, { 0 } }
>>  };
>>  
>>  static const CGEN_IFMT ifmt_jeqile ATTRIBUTE_UNUSED = {
>> -  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_CODE) }, { F (F_DSTLE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
>> +  64, 64, 0xf0ff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_CODE) }, { F (F_DSTLE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
>>  };
>>  
>>  static const CGEN_IFMT ifmt_jeqrle ATTRIBUTE_UNUSED = {
>> -  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_CODE) }, { F (F_DSTLE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
>> +  64, 64, 0xffffffff000000ff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_CODE) }, { F (F_DSTLE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
>>  };
>>  
>>  static const CGEN_IFMT ifmt_jeqibe ATTRIBUTE_UNUSED = {
>> -  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_CODE) }, { F (F_SRCBE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
>> +  64, 64, 0xfff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_CODE) }, { F (F_SRCBE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
>>  };
>>  
>>  static const CGEN_IFMT ifmt_jeqrbe ATTRIBUTE_UNUSED = {
>> -  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_CODE) }, { F (F_SRCBE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
>> +  64, 64, 0xffffffff000000ff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_CODE) }, { F (F_SRCBE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
>>  };
>>  
>>  static const CGEN_IFMT ifmt_callle ATTRIBUTE_UNUSED = {
>> -  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_REGS) }, { F (F_OP_CODE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
>> +  64, 64, 0xffff0fff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_CODE) }, { F (F_DSTLE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
>> +};
>> +
>> +static const CGEN_IFMT ifmt_callbe ATTRIBUTE_UNUSED = {
>> +  64, 64, 0xfffff0ff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_CODE) }, { F (F_SRCBE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
>>  };
>>  
>>  static const CGEN_IFMT ifmt_ja ATTRIBUTE_UNUSED = {
>> -  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_REGS) }, { F (F_OP_CODE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
>> +  64, 64, 0xffffffff0000ffff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_REGS) }, { F (F_OP_CODE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
>>  };
>>  
>>  static const CGEN_IFMT ifmt_exit ATTRIBUTE_UNUSED = {
>> -  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_REGS) }, { F (F_OP_CODE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
>> +  64, 64, 0xffffffffffffffff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_REGS) }, { F (F_OP_CODE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
>>  };
>>  
>>  #undef F
>> @@ -1646,7 +1650,7 @@ static const CGEN_OPCODE bpf_cgen_insn_opcode_table[MAX_INSNS] =
>>    {
>>      { 0, 0, 0, 0 },
>>      { { MNEM, ' ', OP (DISP32), 0 } },
>> -    & ifmt_callle, { 0x85 }
>> +    & ifmt_callbe, { 0x85 }
>>    },
>>  /* call $dstle */
>>    {
>> diff --git a/opcodes/cgen-dis.c b/opcodes/cgen-dis.c
>> index de315d90cfc..90746a845ed 100644
>> --- a/opcodes/cgen-dis.c
>> +++ b/opcodes/cgen-dis.c
>> @@ -39,7 +39,7 @@ static void		 add_insn_to_hash_chain (CGEN_INSN_LIST *,
>>  static int
>>  count_decodable_bits (const CGEN_INSN *insn)
>>  {
>> -  unsigned mask = CGEN_INSN_BASE_MASK (insn);
>> +  CGEN_INSN_LGUINT mask = CGEN_INSN_BASE_MASK (insn);
>>  #if GCC_VERSION >= 3004
>>    return __builtin_popcount (mask);
>>  #else
>> -- 
>> 2.39.0
>>
  
Alan Modra Jan. 12, 2023, 2:50 a.m. UTC | #3
On Thu, Jan 12, 2023 at 12:54:37AM +0100, Jose E. Marchesi via Binutils wrote:
> 
> > Just to know if there is any comment for this patch,
> 
> I already approved the BPF part.
> 
> And I think Alan OKed the opcodes part, provided it doesn't introduce
> any regression in any of the cgen-based targets, which you already
> confirmed it doesn't.
> 
> So I would say this is ready to go in?

Yes, please apply.
  

Patch

diff --git a/cpu/bpf.cpu b/cpu/bpf.cpu
index 13dde7094c8..2ae74fc4c18 100644
--- a/cpu/bpf.cpu
+++ b/cpu/bpf.cpu
@@ -768,7 +768,7 @@ 
        "call"
        (endian-isas x-endian)
        "call $disp32"
-       (+ disp32 (f-offset16 0) (f-regs 0)
+       (+ disp32 (f-offset16 0) (.sym src x-endian) ((.sym f-dst x-endian) 0)
           OP_CLASS_JMP OP_SRC_K OP_CODE_CALL)
        (c-call VOID
                "bpfbf_call" disp32 (ifield (.sym f-src x-endian)))
diff --git a/include/opcode/cgen.h b/include/opcode/cgen.h
index 36b88f1b5fe..6c0732b4b25 100644
--- a/include/opcode/cgen.h
+++ b/include/opcode/cgen.h
@@ -914,7 +914,7 @@  typedef struct
      Each insn's value is stored with the insn.
      The first step in recognizing an insn for disassembly is
      (opcode & mask) == value.  */
-  CGEN_INSN_INT mask;
+  CGEN_INSN_LGUINT mask;
 #define CGEN_IFMT_MASK(ifmt) ((ifmt)->mask)
 
   /* Instruction fields.
diff --git a/opcodes/bpf-opc.c b/opcodes/bpf-opc.c
index a6d8a7dd3ca..1cc06f7cbf6 100644
--- a/opcodes/bpf-opc.c
+++ b/opcodes/bpf-opc.c
@@ -50,99 +50,103 @@  static const CGEN_IFMT ifmt_empty ATTRIBUTE_UNUSED = {
 };
 
 static const CGEN_IFMT ifmt_addile ATTRIBUTE_UNUSED = {
-  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_CODE) }, { F (F_DSTLE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
+  64, 64, 0xfffff0ff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_CODE) }, { F (F_DSTLE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
 };
 
 static const CGEN_IFMT ifmt_addrle ATTRIBUTE_UNUSED = {
-  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_CODE) }, { F (F_DSTLE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
+  64, 64, 0xffffffffffff00ff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_CODE) }, { F (F_DSTLE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
 };
 
 static const CGEN_IFMT ifmt_negle ATTRIBUTE_UNUSED = {
-  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_CODE) }, { F (F_DSTLE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
+  64, 64, 0xfffffffffffff0ff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_CODE) }, { F (F_DSTLE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
 };
 
 static const CGEN_IFMT ifmt_addibe ATTRIBUTE_UNUSED = {
-  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_CODE) }, { F (F_SRCBE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
+  64, 64, 0xffff0fff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_CODE) }, { F (F_SRCBE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
 };
 
 static const CGEN_IFMT ifmt_addrbe ATTRIBUTE_UNUSED = {
-  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_CODE) }, { F (F_SRCBE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
+  64, 64, 0xffffffffffff00ff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_CODE) }, { F (F_SRCBE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
 };
 
 static const CGEN_IFMT ifmt_negbe ATTRIBUTE_UNUSED = {
-  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_CODE) }, { F (F_SRCBE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
+  64, 64, 0xffffffffffff0fff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_CODE) }, { F (F_SRCBE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
 };
 
 static const CGEN_IFMT ifmt_endlele ATTRIBUTE_UNUSED = {
-  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_CODE) }, { F (F_DSTLE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
+  64, 64, 0xfffff0ff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_CODE) }, { F (F_DSTLE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
 };
 
 static const CGEN_IFMT ifmt_endlebe ATTRIBUTE_UNUSED = {
-  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_CODE) }, { F (F_SRCBE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
+  64, 64, 0xffff0fff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_CODE) }, { F (F_SRCBE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
 };
 
 static const CGEN_IFMT ifmt_lddwle ATTRIBUTE_UNUSED = {
-  64, 128, 0xff, { { F (F_IMM64) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_DSTLE) }, { F (F_OP_CLASS) }, { 0 } }
+  64, 128, 0xfffff0ff, { { F (F_IMM64) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_DSTLE) }, { F (F_OP_CLASS) }, { 0 } }
 };
 
 static const CGEN_IFMT ifmt_lddwbe ATTRIBUTE_UNUSED = {
-  64, 128, 0xff, { { F (F_IMM64) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_SRCBE) }, { F (F_OP_CLASS) }, { 0 } }
+  64, 128, 0xffff0fff, { { F (F_IMM64) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_SRCBE) }, { F (F_OP_CLASS) }, { 0 } }
 };
 
 static const CGEN_IFMT ifmt_ldabsw ATTRIBUTE_UNUSED = {
-  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_REGS) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_OP_CLASS) }, { 0 } }
+  64, 64, 0xffffffff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_REGS) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_OP_CLASS) }, { 0 } }
 };
 
 static const CGEN_IFMT ifmt_ldindwle ATTRIBUTE_UNUSED = {
-  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_DSTLE) }, { F (F_OP_CLASS) }, { 0 } }
+  64, 64, 0xffff0fff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_DSTLE) }, { F (F_OP_CLASS) }, { 0 } }
 };
 
 static const CGEN_IFMT ifmt_ldindwbe ATTRIBUTE_UNUSED = {
-  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_SRCBE) }, { F (F_OP_CLASS) }, { 0 } }
+  64, 64, 0xfffff0ff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_SRCBE) }, { F (F_OP_CLASS) }, { 0 } }
 };
 
 static const CGEN_IFMT ifmt_ldxwle ATTRIBUTE_UNUSED = {
-  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_DSTLE) }, { F (F_OP_CLASS) }, { 0 } }
+  64, 64, 0xffffffff000000ff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_DSTLE) }, { F (F_OP_CLASS) }, { 0 } }
 };
 
 static const CGEN_IFMT ifmt_ldxwbe ATTRIBUTE_UNUSED = {
-  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_SRCBE) }, { F (F_OP_CLASS) }, { 0 } }
+  64, 64, 0xffffffff000000ff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_SRCBE) }, { F (F_OP_CLASS) }, { 0 } }
 };
 
 static const CGEN_IFMT ifmt_stble ATTRIBUTE_UNUSED = {
-  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_DSTLE) }, { F (F_OP_CLASS) }, { 0 } }
+  64, 64, 0xf0ff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_DSTLE) }, { F (F_OP_CLASS) }, { 0 } }
 };
 
 static const CGEN_IFMT ifmt_stbbe ATTRIBUTE_UNUSED = {
-  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_SRCBE) }, { F (F_OP_CLASS) }, { 0 } }
+  64, 64, 0xfff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_MODE) }, { F (F_OP_SIZE) }, { F (F_SRCBE) }, { F (F_OP_CLASS) }, { 0 } }
 };
 
 static const CGEN_IFMT ifmt_jeqile ATTRIBUTE_UNUSED = {
-  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_CODE) }, { F (F_DSTLE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
+  64, 64, 0xf0ff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_CODE) }, { F (F_DSTLE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
 };
 
 static const CGEN_IFMT ifmt_jeqrle ATTRIBUTE_UNUSED = {
-  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_CODE) }, { F (F_DSTLE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
+  64, 64, 0xffffffff000000ff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_CODE) }, { F (F_DSTLE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
 };
 
 static const CGEN_IFMT ifmt_jeqibe ATTRIBUTE_UNUSED = {
-  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_CODE) }, { F (F_SRCBE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
+  64, 64, 0xfff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_CODE) }, { F (F_SRCBE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
 };
 
 static const CGEN_IFMT ifmt_jeqrbe ATTRIBUTE_UNUSED = {
-  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_CODE) }, { F (F_SRCBE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
+  64, 64, 0xffffffff000000ff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_CODE) }, { F (F_SRCBE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
 };
 
 static const CGEN_IFMT ifmt_callle ATTRIBUTE_UNUSED = {
-  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_REGS) }, { F (F_OP_CODE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
+  64, 64, 0xffff0fff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_CODE) }, { F (F_DSTLE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
+};
+
+static const CGEN_IFMT ifmt_callbe ATTRIBUTE_UNUSED = {
+  64, 64, 0xfffff0ff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_DSTBE) }, { F (F_OP_CODE) }, { F (F_SRCBE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
 };
 
 static const CGEN_IFMT ifmt_ja ATTRIBUTE_UNUSED = {
-  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_REGS) }, { F (F_OP_CODE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
+  64, 64, 0xffffffff0000ffff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_REGS) }, { F (F_OP_CODE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
 };
 
 static const CGEN_IFMT ifmt_exit ATTRIBUTE_UNUSED = {
-  64, 64, 0xff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_REGS) }, { F (F_OP_CODE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
+  64, 64, 0xffffffffffffffff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_REGS) }, { F (F_OP_CODE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
 };
 
 #undef F
@@ -1646,7 +1650,7 @@  static const CGEN_OPCODE bpf_cgen_insn_opcode_table[MAX_INSNS] =
   {
     { 0, 0, 0, 0 },
     { { MNEM, ' ', OP (DISP32), 0 } },
-    & ifmt_callle, { 0x85 }
+    & ifmt_callbe, { 0x85 }
   },
 /* call $dstle */
   {
diff --git a/opcodes/cgen-dis.c b/opcodes/cgen-dis.c
index de315d90cfc..90746a845ed 100644
--- a/opcodes/cgen-dis.c
+++ b/opcodes/cgen-dis.c
@@ -39,7 +39,7 @@  static void		 add_insn_to_hash_chain (CGEN_INSN_LIST *,
 static int
 count_decodable_bits (const CGEN_INSN *insn)
 {
-  unsigned mask = CGEN_INSN_BASE_MASK (insn);
+  CGEN_INSN_LGUINT mask = CGEN_INSN_BASE_MASK (insn);
 #if GCC_VERSION >= 3004
   return __builtin_popcount (mask);
 #else