[gdb] Fix -Wstrict-null-sentinel warnings When passed in CXXFLAGS, -Wstrict-null-sentinel triggers twice in a gdb/gdbserver build. Fix the two occurrences. Build and reg-tested on x86_64-linux. gdb/ChangeLog: 2020-02-10 Tom de Vries * dwarf2/read.c (process_psymtab_comp_unit_reader): Cast concat NULL sentinel to char *. gdbsupport/ChangeLog: 2020-02-10 Tom de Vries * environ.c (gdb_environ::set): Cast concat NULL sentinel to char *. --- gdb/dwarf2/read.c | 3 ++- gdbsupport/environ.c | 2 +- 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/gdb/dwarf2/read.c b/gdb/dwarf2/read.c index 9e66e613cd..a7646c87f3 100644 --- a/gdb/dwarf2/read.c +++ b/gdb/dwarf2/read.c @@ -7260,7 +7260,8 @@ process_psymtab_comp_unit_reader (const struct die_reader_specs *reader, else if (strcmp (filename, artificial) == 0) { debug_filename.reset (concat (artificial, "@", - sect_offset_str (per_cu->sect_off), NULL)); + sect_offset_str (per_cu->sect_off), + (char *)NULL)); filename = debug_filename.get (); } diff --git a/gdbsupport/environ.c b/gdbsupport/environ.c index 55d0a74c37..a618cf0f6f 100644 --- a/gdbsupport/environ.c +++ b/gdbsupport/environ.c @@ -105,7 +105,7 @@ gdb_environ::get (const char *var) const void gdb_environ::set (const char *var, const char *value) { - char *fullvar = concat (var, "=", value, NULL); + char *fullvar = concat (var, "=", value, (char *)NULL); /* We have to unset the variable in the vector if it exists. */ unset (var, false);