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| author | Alan Modra <amodra@gmail.com> | 2024-04-09 08:53:35 +0930 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2024-04-17 09:24:36 +0930 |
| commit | 59497587af9e1c5f029ab0bb106103dab30a5f5d (patch) | |
| tree | 677fb2a56586cc0d5aeeb28311ec39153abfceaf /libctf/ctf-create.c | |
| parent | 20bf7711bce2188c1af985a87df23c4653c2cc7a (diff) | |
| download | binutils-59497587af9e1c5f029ab0bb106103dab30a5f5d.zip binutils-59497587af9e1c5f029ab0bb106103dab30a5f5d.tar.gz binutils-59497587af9e1c5f029ab0bb106103dab30a5f5d.tar.bz2 | |
libctf warnings
Seen with every compiler I have if using -fno-inline:
home/alan/src/binutils-gdb/libctf/ctf-create.c: In function ‘ctf_add_encoded’:
/home/alan/src/binutils-gdb/libctf/ctf-create.c:555:3: warning: ‘encoding’ may be used uninitialized [-Wmaybe-uninitialized]
555 | memcpy (dtd->dtd_vlen, &encoding, sizeof (encoding));
Seen with gcc-4.9 and probably others at lower optimisation levels:
home/alan/src/binutils-gdb/libctf/ctf-serialize.c: In function 'symtypetab_density':
/home/alan/src/binutils-gdb/libctf/ctf-serialize.c:211:18: warning: 'sym' may be used uninitialized in this function [-Wmaybe-uninitialized]
if (*max < sym->st_symidx)
Seen with gcc-4.5 and probably others at lower optimisation levels:
/home/alan/src/binutils-gdb/libctf/ctf-types.c:1649:21: warning: 'tp' may be used uninitialized in this function
/home/alan/src/binutils-gdb/libctf/ctf-link.c:765:16: warning: 'parent_i' may be used uninitialized in this function
Also with gcc-4.5:
In file included from /home/alan/src/binutils-gdb/libctf/ctf-endian.h:25:0,
from /home/alan/src/binutils-gdb/libctf/ctf-archive.c:24:
/home/alan/src/binutils-gdb/libctf/swap.h:70:0: warning: "_Static_assert" redefined
/usr/include/sys/cdefs.h:568:0: note: this is the location of the previous definition
* swap.h (_Static_assert): Don't define if already defined.
* ctf-serialize.c (symtypetab_density): Merge two
CTF_SYMTYPETAB_FORCE_INDEXED blocks.
* ctf-create.c (ctf_add_encoded): Avoid "encoding" may be used
uninitialized warning.
* ctf-link.c (ctf_link_deduplicating_open_inputs): Avoid
"parent_i" may be used uninitialized warning.
* ctf-types.c (ctf_type_rvisit): Avoid "tp" may be used
uninitialized warning.
Diffstat (limited to 'libctf/ctf-create.c')
| -rw-r--r-- | libctf/ctf-create.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/libctf/ctf-create.c b/libctf/ctf-create.c index d0255e5..21fbad7 100644 --- a/libctf/ctf-create.c +++ b/libctf/ctf-create.c @@ -551,6 +551,10 @@ ctf_add_encoded (ctf_dict_t *fp, uint32_t flag, case CTF_K_FLOAT: encoding = CTF_FP_DATA (ep->cte_format, ep->cte_offset, ep->cte_bits); break; + default: + /* ctf_assert is opaque with -fno-inline. This dead code avoids + a warning about "encoding" being used uninitialized. */ + return CTF_ERR; } memcpy (dtd->dtd_vlen, &encoding, sizeof (encoding)); |