[v2,05/16] libcpu: Remove the need of NMNES by using enum
Commit Message
Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
---
libcpu/Makefile.am | 2 +-
libcpu/i386_disasm.c | 14 +-------------
libcpu/i386_mne.h | 36 ++++++++++++++++++++++++++++++++++++
libcpu/i386_parse.y | 9 +++------
4 files changed, 41 insertions(+), 20 deletions(-)
create mode 100644 libcpu/i386_mne.h
Comments
Hi,
On Sun, 2022-12-18 at 00:52 +0800, Yonggang Luo via Elfutils-devel
wrote:
> Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
> ---
> libcpu/Makefile.am | 2 +-
> libcpu/i386_disasm.c | 14 +-------------
> libcpu/i386_mne.h | 36 ++++++++++++++++++++++++++++++++++++
> libcpu/i386_parse.y | 9 +++------
> 4 files changed, 41 insertions(+), 20 deletions(-)
> create mode 100644 libcpu/i386_mne.h
>
> diff --git a/libcpu/Makefile.am b/libcpu/Makefile.am
> index 57d0a164..259ed838 100644
> --- a/libcpu/Makefile.am
> +++ b/libcpu/Makefile.am
> @@ -92,7 +92,7 @@ libeu = ../lib/libeu.a
> i386_lex_CFLAGS = -Wno-unused-label -Wno-unused-function -Wno-sign-
> compare \
> -Wno-implicit-fallthrough
> i386_parse.o: i386_parse.c i386.mnemonics
> -i386_parse_CFLAGS = -DNMNES="`wc -l < i386.mnemonics`"
> +i386_parse_CFLAGS =
> i386_lex.o: i386_parse.h
> i386_gendis_LDADD = $(libeu) -lm $(obstack_LIBS)
The new i386_mne.h file should be added to noinst_HEADERS (or it won't
be included in a make dist, so make distcheck fails).
> diff --git a/libcpu/i386_disasm.c b/libcpu/i386_disasm.c
> index 599d1654..c34f03d6 100644
> --- a/libcpu/i386_disasm.c
> +++ b/libcpu/i386_disasm.c
> @@ -46,10 +46,7 @@
> #define MACHINE_ENCODING LITTLE_ENDIAN
> #include "memory-access.h"
>
> -
> -#ifndef MNEFILE
> -# define MNEFILE "i386.mnemonics"
> -#endif
> +#include "i386_mne.h"
>
> #define MNESTRFIELD(line) MNESTRFIELD1 (line)
> #define MNESTRFIELD1(line) str##line
> @@ -71,15 +68,6 @@ static const union mnestr_t
> }
> };
>
> -/* The index can be stored in the instrtab. */
> -enum
> - {
> -#define MNE(name) MNE_##name,
> -#include MNEFILE
> -#undef MNE
> - MNE_INVALID
> - };
> -
> static const unsigned short int mneidx[] =
> {
> #define MNE(name) \
OK.
> diff --git a/libcpu/i386_mne.h b/libcpu/i386_mne.h
> new file mode 100644
> index 00000000..41dacf61
> --- /dev/null
> +++ b/libcpu/i386_mne.h
> @@ -0,0 +1,36 @@
> +/* Compute hash value for given string according to ELF standard.
> + Copyright (C) 1995-2015 Free Software Foundation, Inc.
> + This file is part of the GNU C Library.
> +
> + The GNU C Library is free software; you can redistribute it
> and/or
> + modify it under the terms of the GNU Lesser General Public
> + License as published by the Free Software Foundation; either
> + version 2.1 of the License, or (at your option) any later
> version.
> +
> + The GNU C Library is distributed in the hope that it will be
> useful,
> + but WITHOUT ANY WARRANTY; without even the implied warranty of
> + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
> + Lesser General Public License for more details.
> +
> + You should have received a copy of the GNU Lesser General Public
> + License along with the GNU C Library; if not, see
> + <http://www.gnu.org/licenses/>. */
That looks like the wrong header.
Just copy the one from i386_disasm.c
> +#ifndef _I386_MNE_H
> +#define _I386_MNE_H 1
> +
> +#ifndef MNEFILE
> +# define MNEFILE "i386.mnemonics"
> +#endif
> +
> +/* The index can be stored in the instrtab. */
> +enum
> + {
> +#define MNE(name) MNE_##name,
> +#include MNEFILE
> +#undef MNE
> + MNE_INVALID,
> + MNE_COUNT = MNE_INVALID,
> + };
> +
> +#endif /* i386_mne.h */
OK.
> diff --git a/libcpu/i386_parse.y b/libcpu/i386_parse.y
> index d2236d59..459684c6 100644
> --- a/libcpu/i386_parse.y
> +++ b/libcpu/i386_parse.y
> @@ -46,6 +46,8 @@
> #include <libeu.h>
> #include <system.h>
>
> +#include "i386_mne.h"
> +
> #define obstack_chunk_alloc xmalloc
> #define obstack_chunk_free free
>
> @@ -1107,11 +1109,6 @@ print_op_fct (const void *nodep, VISIT value,
> }
> }
>
> -
> -#if NMNES < 2
> -# error "bogus NMNES value"
> -#endif
> -
> static void
> instrtable_out (void)
> {
> @@ -1123,7 +1120,7 @@ instrtable_out (void)
> fprintf (outfile, "#define MNEMONIC_BITS %zu\n",
> best_mnemonic_bits);
> #else
> fprintf (outfile, "#define MNEMONIC_BITS %ld\n",
> - lrint (ceil (log2 (NMNES))));
> + lrint (ceil (log2 (MNE_COUNT))));
> #endif
> fprintf (outfile, "#define SUFFIX_BITS %d\n", nbitsuf);
> for (int i = 0; i < 3; ++i)
OK.
Thanks,
Mark
Hi,
On Wed, 2022-12-21 at 18:56 +0100, Mark Wielaard wrote:
> On Sun, 2022-12-18 at 00:52 +0800, Yonggang Luo via Elfutils-devel
> wrote:
> > Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
> > ---
> > libcpu/Makefile.am | 2 +-
> > libcpu/i386_disasm.c | 14 +-------------
> > libcpu/i386_mne.h | 36 ++++++++++++++++++++++++++++++++++++
> > libcpu/i386_parse.y | 9 +++------
> > 4 files changed, 41 insertions(+), 20 deletions(-)
> > create mode 100644 libcpu/i386_mne.h
> >
> > diff --git a/libcpu/Makefile.am b/libcpu/Makefile.am
> > index 57d0a164..259ed838 100644
> > --- a/libcpu/Makefile.am
> > +++ b/libcpu/Makefile.am
> > @@ -92,7 +92,7 @@ libeu = ../lib/libeu.a
> > i386_lex_CFLAGS = -Wno-unused-label -Wno-unused-function -Wno-sign-
> > compare \
> > -Wno-implicit-fallthrough
> > i386_parse.o: i386_parse.c i386.mnemonics
> > -i386_parse_CFLAGS = -DNMNES="`wc -l < i386.mnemonics`"
> > +i386_parse_CFLAGS =
> > i386_lex.o: i386_parse.h
> > i386_gendis_LDADD = $(libeu) -lm $(obstack_LIBS)
>
> The new i386_mne.h file should be added to noinst_HEADERS (or it won't
> be included in a make dist, so make distcheck fails).
>
I added this. And did a make distcheck to check things work as
intended.
> > diff --git a/libcpu/i386_disasm.c b/libcpu/i386_disasm.c
> > index 599d1654..c34f03d6 100644
> > --- a/libcpu/i386_disasm.c
> > +++ b/libcpu/i386_disasm.c
> > @@ -46,10 +46,7 @@
> > #define MACHINE_ENCODING LITTLE_ENDIAN
> > #include "memory-access.h"
> >
> > -
> > -#ifndef MNEFILE
> > -# define MNEFILE "i386.mnemonics"
> > -#endif
> > +#include "i386_mne.h"
> >
> > #define MNESTRFIELD(line) MNESTRFIELD1 (line)
> > #define MNESTRFIELD1(line) str##line
> > @@ -71,15 +68,6 @@ static const union mnestr_t
> > }
> > };
> >
> > -/* The index can be stored in the instrtab. */
> > -enum
> > - {
> > -#define MNE(name) MNE_##name,
> > -#include MNEFILE
> > -#undef MNE
> > - MNE_INVALID
> > - };
> > -
> > static const unsigned short int mneidx[] =
> > {
> > #define MNE(name) \
>
> OK.
>
> > diff --git a/libcpu/i386_mne.h b/libcpu/i386_mne.h
> > new file mode 100644
> > index 00000000..41dacf61
> > --- /dev/null
> > +++ b/libcpu/i386_mne.h
> > @@ -0,0 +1,36 @@
> > +/* Compute hash value for given string according to ELF standard.
> > + Copyright (C) 1995-2015 Free Software Foundation, Inc.
> > + This file is part of the GNU C Library.
> > +
> > + The GNU C Library is free software; you can redistribute it
> > and/or
> > + modify it under the terms of the GNU Lesser General Public
> > + License as published by the Free Software Foundation; either
> > + version 2.1 of the License, or (at your option) any later
> > version.
> > +
> > + The GNU C Library is distributed in the hope that it will be
> > useful,
> > + but WITHOUT ANY WARRANTY; without even the implied warranty of
> > + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
> > + Lesser General Public License for more details.
> > +
> > + You should have received a copy of the GNU Lesser General Public
> > + License along with the GNU C Library; if not, see
> > + <http://www.gnu.org/licenses/>. */
>
> That looks like the wrong header.
> Just copy the one from i386_disasm.c
I fixed the header.
> > +#ifndef _I386_MNE_H
> > +#define _I386_MNE_H 1
> > +
> > +#ifndef MNEFILE
> > +# define MNEFILE "i386.mnemonics"
> > +#endif
> > +
> > +/* The index can be stored in the instrtab. */
> > +enum
> > + {
> > +#define MNE(name) MNE_##name,
> > +#include MNEFILE
> > +#undef MNE
> > + MNE_INVALID,
> > + MNE_COUNT = MNE_INVALID,
> > + };
> > +
> > +#endif /* i386_mne.h */
>
> OK.
>
> > diff --git a/libcpu/i386_parse.y b/libcpu/i386_parse.y
> > index d2236d59..459684c6 100644
> > --- a/libcpu/i386_parse.y
> > +++ b/libcpu/i386_parse.y
> > @@ -46,6 +46,8 @@
> > #include <libeu.h>
> > #include <system.h>
> >
> > +#include "i386_mne.h"
> > +
> > #define obstack_chunk_alloc xmalloc
> > #define obstack_chunk_free free
> >
> > @@ -1107,11 +1109,6 @@ print_op_fct (const void *nodep, VISIT value,
> > }
> > }
> >
> > -
> > -#if NMNES < 2
> > -# error "bogus NMNES value"
> > -#endif
> > -
> > static void
> > instrtable_out (void)
> > {
> > @@ -1123,7 +1120,7 @@ instrtable_out (void)
> > fprintf (outfile, "#define MNEMONIC_BITS %zu\n",
> > best_mnemonic_bits);
> > #else
> > fprintf (outfile, "#define MNEMONIC_BITS %ld\n",
> > - lrint (ceil (log2 (NMNES))));
> > + lrint (ceil (log2 (MNE_COUNT))));
> > #endif
> > fprintf (outfile, "#define SUFFIX_BITS %d\n", nbitsuf);
> > for (int i = 0; i < 3; ++i)
>
> OK.
Pushed with those changes and a ChangeLog entry as attached.
Cheers,
Mark
@@ -92,7 +92,7 @@ libeu = ../lib/libeu.a
i386_lex_CFLAGS = -Wno-unused-label -Wno-unused-function -Wno-sign-compare \
-Wno-implicit-fallthrough
i386_parse.o: i386_parse.c i386.mnemonics
-i386_parse_CFLAGS = -DNMNES="`wc -l < i386.mnemonics`"
+i386_parse_CFLAGS =
i386_lex.o: i386_parse.h
i386_gendis_LDADD = $(libeu) -lm $(obstack_LIBS)
@@ -46,10 +46,7 @@
#define MACHINE_ENCODING LITTLE_ENDIAN
#include "memory-access.h"
-
-#ifndef MNEFILE
-# define MNEFILE "i386.mnemonics"
-#endif
+#include "i386_mne.h"
#define MNESTRFIELD(line) MNESTRFIELD1 (line)
#define MNESTRFIELD1(line) str##line
@@ -71,15 +68,6 @@ static const union mnestr_t
}
};
-/* The index can be stored in the instrtab. */
-enum
- {
-#define MNE(name) MNE_##name,
-#include MNEFILE
-#undef MNE
- MNE_INVALID
- };
-
static const unsigned short int mneidx[] =
{
#define MNE(name) \
new file mode 100644
@@ -0,0 +1,36 @@
+/* Compute hash value for given string according to ELF standard.
+ Copyright (C) 1995-2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _I386_MNE_H
+#define _I386_MNE_H 1
+
+#ifndef MNEFILE
+# define MNEFILE "i386.mnemonics"
+#endif
+
+/* The index can be stored in the instrtab. */
+enum
+ {
+#define MNE(name) MNE_##name,
+#include MNEFILE
+#undef MNE
+ MNE_INVALID,
+ MNE_COUNT = MNE_INVALID,
+ };
+
+#endif /* i386_mne.h */
@@ -46,6 +46,8 @@
#include <libeu.h>
#include <system.h>
+#include "i386_mne.h"
+
#define obstack_chunk_alloc xmalloc
#define obstack_chunk_free free
@@ -1107,11 +1109,6 @@ print_op_fct (const void *nodep, VISIT value,
}
}
-
-#if NMNES < 2
-# error "bogus NMNES value"
-#endif
-
static void
instrtable_out (void)
{
@@ -1123,7 +1120,7 @@ instrtable_out (void)
fprintf (outfile, "#define MNEMONIC_BITS %zu\n", best_mnemonic_bits);
#else
fprintf (outfile, "#define MNEMONIC_BITS %ld\n",
- lrint (ceil (log2 (NMNES))));
+ lrint (ceil (log2 (MNE_COUNT))));
#endif
fprintf (outfile, "#define SUFFIX_BITS %d\n", nbitsuf);
for (int i = 0; i < 3; ++i)