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| author | Yao Qi <yao.qi@linaro.org> | 2017-11-22 12:22:11 +0000 |
|---|---|---|
| committer | Yao Qi <yao.qi@linaro.org> | 2017-11-22 12:22:11 +0000 |
| commit | 29f9a5673764c1b2711c0ceeba380a6ee764d1b2 (patch) | |
| tree | 0708d6c0c9bb5b8894f8732ca952898c28cd78aa /gdb/cli/cli-decode.c | |
| parent | dc958481429708ecf91f9b2c445063d43397f07e (diff) | |
| download | gdb-29f9a5673764c1b2711c0ceeba380a6ee764d1b2.zip gdb-29f9a5673764c1b2711c0ceeba380a6ee764d1b2.tar.gz gdb-29f9a5673764c1b2711c0ceeba380a6ee764d1b2.tar.bz2 | |
Fix build with GCC 8: strncpy -> memcpy
Recent gcc 8 trunk emits the warning below,
../../../binutils-gdb/gdb/gdbserver/remote-utils.c:1204:14: error: ‘char* strncpy(char*, const char*, size_t)’ output truncated before terminating nul copying 6 bytes from a string of the same length [-Werror=stringop-truncation]
strncpy (buf, "watch:", 6);
~~~~~~~~^~~~~~~~~~~~~~~~~~
../../binutils-gdb/gdb/cli/cli-decode.c:1118:15: error: ‘char* strncpy(char*, const char*, size_t)’ specified bound depends on the length of the source argument [-Werror=stringop-overflow=]
strncpy (cmdtype1 + 1, cmdtype, len - 1);
~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../../binutils-gdb/gdb/cli/cli-decode.c:1110:16: note: length computed here
len = strlen (cmdtype);
~~~~~~~^~~~~~~~~
../../binutils-gdb/gdb/cli/cli-decode.c:1120:15: error: ‘char* strncpy(char*, const char*, size_t)’ specified bound depends on the length of the source argument [-Werror=stringop-overflow=]
strncpy (cmdtype2, cmdtype, len - 1);
~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
../../binutils-gdb/gdb/cli/cli-decode.c:1110:16: note: length computed here
len = strlen (cmdtype);
~~~~~~~^~~~~~~~~
../../binutils-gdb/gdb/cp-namespace.c:1071:11: error: ‘char* strncpy(char*, const char*, size_t)’ output truncated before terminating nul copying 2 bytes from a string of the same length [-Werror=stringop-truncation]
strncpy (full_name + scope_length, "::", 2);
~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
This patch fixes it by using memcpy instead of strncpy.
gdb:
2017-11-22 Yao Qi <yao.qi@linaro.org>
* cli/cli-decode.c (help_list): Use memcpy instead of strncpy.
* cp-namespace.c (cp_lookup_transparent_type_loop): Likewise.
gdb/gdbserver:
2017-11-22 Yao Qi <yao.qi@linaro.org>
* remote-utils.c (prepare_resume_reply): Use memcpy.
Diffstat (limited to 'gdb/cli/cli-decode.c')
| -rw-r--r-- | gdb/cli/cli-decode.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/gdb/cli/cli-decode.c b/gdb/cli/cli-decode.c index b911097..6140a17 100644 --- a/gdb/cli/cli-decode.c +++ b/gdb/cli/cli-decode.c @@ -1084,9 +1084,9 @@ help_list (struct cmd_list_element *list, const char *cmdtype, if (len) { cmdtype1[0] = ' '; - strncpy (cmdtype1 + 1, cmdtype, len - 1); + memcpy (cmdtype1 + 1, cmdtype, len - 1); cmdtype1[len] = 0; - strncpy (cmdtype2, cmdtype, len - 1); + memcpy (cmdtype2, cmdtype, len - 1); strcpy (cmdtype2 + len - 1, " sub"); } |