Use CHAR_BIT instead of NBBY in libctf
On x86-64 Fedora 29, I tried to build a mingw-hosted gdb that targets ppc-linux. You can do this with: ../binutils-gdb/configure --host=i686-w64-mingw32 --target=ppc-linux \ --disable-{binutils,gas,gold,gprof,ld} The build failed with these errors in libctf: In file included from ../../binutils-gdb/libctf/ctf-create.c:20: ../../binutils-gdb/libctf/ctf-create.c: In function 'ctf_add_encoded': ../../binutils-gdb/libctf/ctf-create.c:803:59: error: 'NBBY' undeclared (first use in this function) dtd->dtd_data.ctt_size = clp2 (P2ROUNDUP (ep->cte_bits, NBBY) / NBBY); ^~~~ ../../binutils-gdb/libctf/ctf-impl.h:254:42: note: in definition of macro 'P2ROUNDUP' #define P2ROUNDUP(x, align) (-(-(x) & -(align))) ^~~~~ ../../binutils-gdb/libctf/ctf-create.c:803:59: note: each undeclared identifier is reported only once for each function it appears in dtd->dtd_data.ctt_size = clp2 (P2ROUNDUP (ep->cte_bits, NBBY) / NBBY); ^~~~ ../../binutils-gdb/libctf/ctf-impl.h:254:42: note: in definition of macro 'P2ROUNDUP' #define P2ROUNDUP(x, align) (-(-(x) & -(align))) ^~~~~ ../../binutils-gdb/libctf/ctf-create.c: In function 'ctf_add_slice': ../../binutils-gdb/libctf/ctf-create.c:862:59: error: 'NBBY' undeclared (first use in this function) dtd->dtd_data.ctt_size = clp2 (P2ROUNDUP (ep->cte_bits, NBBY) / NBBY); ^~~~ ../../binutils-gdb/libctf/ctf-impl.h:254:42: note: in definition of macro 'P2ROUNDUP' #define P2ROUNDUP(x, align) (-(-(x) & -(align))) ^~~~~ ../../binutils-gdb/libctf/ctf-create.c: In function 'ctf_add_member_offset': ../../binutils-gdb/libctf/ctf-create.c:1341:21: error: 'NBBY' undeclared (first use in this function) off += lsize * NBBY; ^~~~ ../../binutils-gdb/libctf/ctf-create.c: In function 'ctf_add_type': ../../binutils-gdb/libctf/ctf-create.c:1822:16: warning: unknown conversion type character 'z' in format [-Wformat=] ctf_dprintf ("Conflict for type %s against ID %lx: " ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ../../binutils-gdb/libctf/ctf-create.c:1823:35: note: format string is defined here "union size differs, old %zi, new %zi\n", ^ ../../binutils-gdb/libctf/ctf-create.c:1822:16: warning: unknown conversion type character 'z' in format [-Wformat=] ctf_dprintf ("Conflict for type %s against ID %lx: " ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ../../binutils-gdb/libctf/ctf-create.c:1823:44: note: format string is defined here "union size differs, old %zi, new %zi\n", ^ ../../binutils-gdb/libctf/ctf-create.c:1822:16: warning: too many arguments for format [-Wformat-extra-args] ctf_dprintf ("Conflict for type %s against ID %lx: " ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ This patch fixes the actual errors in here. I did not try to fix the printf warnings, though I think someone ought to. Ok? libctf/ChangeLog 2019-06-04 Tom Tromey <tromey@adacore.com> * ctf-create.c (ctf_add_encoded, ctf_add_slice) (ctf_add_member_offset): Use CHAR_BIT, not NBBY.
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@ -1,3 +1,8 @@
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2019-06-04 Tom Tromey <tromey@adacore.com>
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* ctf-create.c (ctf_add_encoded, ctf_add_slice)
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(ctf_add_member_offset): Use CHAR_BIT, not NBBY.
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2019-06-04 Nick Alcock <nick.alcock@oracle.com>
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* configure.ac: Check for O_CLOEXEC.
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@ -800,7 +800,8 @@ ctf_add_encoded (ctf_file_t *fp, uint32_t flag,
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return CTF_ERR; /* errno is set for us. */
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dtd->dtd_data.ctt_info = CTF_TYPE_INFO (kind, flag, 0);
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dtd->dtd_data.ctt_size = clp2 (P2ROUNDUP (ep->cte_bits, NBBY) / NBBY);
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dtd->dtd_data.ctt_size = clp2 (P2ROUNDUP (ep->cte_bits, CHAR_BIT)
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/ CHAR_BIT);
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dtd->dtd_u.dtu_enc = *ep;
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return type;
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@ -859,7 +860,8 @@ ctf_add_slice (ctf_file_t *fp, uint32_t flag, ctf_id_t ref,
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return CTF_ERR; /* errno is set for us. */
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dtd->dtd_data.ctt_info = CTF_TYPE_INFO (CTF_K_SLICE, flag, 0);
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dtd->dtd_data.ctt_size = clp2 (P2ROUNDUP (ep->cte_bits, NBBY) / NBBY);
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dtd->dtd_data.ctt_size = clp2 (P2ROUNDUP (ep->cte_bits, CHAR_BIT)
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/ CHAR_BIT);
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dtd->dtd_u.dtu_slice.cts_type = ref;
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dtd->dtd_u.dtu_slice.cts_bits = ep->cte_bits;
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dtd->dtd_u.dtu_slice.cts_offset = ep->cte_offset;
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@ -1338,7 +1340,7 @@ ctf_add_member_offset (ctf_file_t *fp, ctf_id_t souid, const char *name,
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if (ctf_type_encoding (fp, ltype, &linfo) == 0)
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off += linfo.cte_bits;
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else if ((lsize = ctf_type_size (fp, ltype)) > 0)
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off += lsize * NBBY;
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off += lsize * CHAR_BIT;
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/* Round up the offset of the end of the last member to
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the next byte boundary, convert 'off' to bytes, and
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@ -1349,9 +1351,9 @@ ctf_add_member_offset (ctf_file_t *fp, ctf_id_t souid, const char *name,
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packing if the new member is a bit-field, but we're
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the "compiler" and ANSI says we can do as we choose. */
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off = roundup (off, NBBY) / NBBY;
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off = roundup (off, CHAR_BIT) / CHAR_BIT;
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off = roundup (off, MAX (malign, 1));
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dmd->dmd_offset = off * NBBY;
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dmd->dmd_offset = off * CHAR_BIT;
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ssize = off + msize;
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}
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else
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@ -1360,7 +1362,7 @@ ctf_add_member_offset (ctf_file_t *fp, ctf_id_t souid, const char *name,
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dmd->dmd_offset = bit_offset;
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ssize = ctf_get_ctt_size (fp, &dtd->dtd_data, NULL, NULL);
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ssize = MAX (ssize, ((signed) bit_offset / NBBY) + msize);
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ssize = MAX (ssize, ((signed) bit_offset / CHAR_BIT) + msize);
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}
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}
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else
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