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Convert char array to std::string in linux_find_memory_regions_full

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This is a quick cleanup that removes the use of fixed-length char arrays and
uses std::string instead.

gdb/ChangeLog:

2021-03-24  Luis Machado  <luis.machado@linaro.org>

	* linux-tdep.c (linux_find_memory_regions_full): Use std::string
	instead of char arrays.
This commit is contained in:
Luis Machado 2020-12-30 10:46:11 -03:00
parent 4601818e8c
commit 93e447c605
2 changed files with 19 additions and 11 deletions
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5
gdb/ChangeLog
View File

@ -1,3 +1,8 @@
2021-03-24 Luis Machado <luis.machado@linaro.org>
* linux-tdep.c (linux_find_memory_regions_full): Use std::string
instead of char arrays.
2021-03-24 Luis Machado <luis.machado@linaro.org>
* Makefile.in (ALL_64_TARGET_OBS): Add arch/aarch64-mte-linux.o.

25
gdb/linux-tdep.c
View File

@ -1279,8 +1279,6 @@ linux_find_memory_regions_full (struct gdbarch *gdbarch,
linux_find_memory_region_ftype *func,
void *obfd)
{
char mapsfilename[100];
char coredumpfilter_name[100];
pid_t pid;
/* Default dump behavior of coredump_filter (0x33), according to
Documentation/filesystems/proc.txt from the Linux kernel
@ -1298,10 +1296,12 @@ linux_find_memory_regions_full (struct gdbarch *gdbarch,
if (use_coredump_filter)
{
xsnprintf (coredumpfilter_name, sizeof (coredumpfilter_name),
"/proc/%d/coredump_filter", pid);
std::string core_dump_filter_name
= string_printf ("/proc/%d/coredump_filter", pid);
gdb::unique_xmalloc_ptr<char> coredumpfilterdata
= target_fileio_read_stralloc (NULL, coredumpfilter_name);
= target_fileio_read_stralloc (NULL, core_dump_filter_name.c_str ());
if (coredumpfilterdata != NULL)
{
unsigned int flags;
@ -1311,14 +1311,16 @@ linux_find_memory_regions_full (struct gdbarch *gdbarch,
}
}
xsnprintf (mapsfilename, sizeof mapsfilename, "/proc/%d/smaps", pid);
std::string maps_filename = string_printf ("/proc/%d/smaps", pid);
gdb::unique_xmalloc_ptr<char> data
= target_fileio_read_stralloc (NULL, mapsfilename);
= target_fileio_read_stralloc (NULL, maps_filename.c_str ());
if (data == NULL)
{
/* Older Linux kernels did not support /proc/PID/smaps. */
xsnprintf (mapsfilename, sizeof mapsfilename, "/proc/%d/maps", pid);
data = target_fileio_read_stralloc (NULL, mapsfilename);
maps_filename = string_printf ("/proc/%d/maps", pid);
data = target_fileio_read_stralloc (NULL, maps_filename.c_str ());
}
if (data != NULL)
@ -1378,7 +1380,8 @@ linux_find_memory_regions_full (struct gdbarch *gdbarch,
if (sscanf (line, "%64s", keyword) != 1)
{
warning (_("Error parsing {s,}maps file '%s'"), mapsfilename);
warning (_("Error parsing {s,}maps file '%s'"),
maps_filename.c_str ());
break;
}
@ -1399,7 +1402,7 @@ linux_find_memory_regions_full (struct gdbarch *gdbarch,
if (sscanf (line, "%*s%lu", &number) != 1)
{
warning (_("Error parsing {s,}maps file '%s' number"),
mapsfilename);
maps_filename.c_str ());
break;
}
if (number > 0)