#include "auxv.h"
#include "procfs.h"
#include "observer.h"
+#include "common/scoped_fd.h"
/* This module provides the interface between GDB and the
/proc file system, which is used on many versions of Unix
{
static struct ssd *ldt_entry = NULL;
char pathname[MAX_PROC_NAME_SIZE];
- struct cleanup *old_chain = NULL;
- int fd;
/* Allocate space for one LDT entry.
This alloc must persist, because we return a pointer to it. */
/* Open the file descriptor for the LDT table. */
sprintf (pathname, "/proc/%d/ldt", pi->pid);
- if ((fd = open_with_retry (pathname, O_RDONLY)) < 0)
+ scoped_fd fd (open_with_retry (pathname, O_RDONLY));
+ if (fd.get () < 0)
{
proc_warn (pi, "proc_get_LDT_entry (open)", __LINE__);
return NULL;
}
- /* Make sure it gets closed again! */
- old_chain = make_cleanup_close (fd);
/* Now 'read' thru the table, find a match and return it. */
- while (read (fd, ldt_entry, sizeof (struct ssd)) == sizeof (struct ssd))
+ while (read (fd.get (), ldt_entry, sizeof (struct ssd))
+ == sizeof (struct ssd))
{
if (ldt_entry->sel == 0 &&
ldt_entry->bo == 0 &&
}
}
/* Loop ended, match not found. */
- do_cleanups (old_chain);
return NULL;
}
struct prmap *prmaps;
struct prmap *prmap;
int funcstat;
- int map_fd;
int nmap;
- struct cleanup *cleanups = make_cleanup (null_cleanup, NULL);
struct stat sbuf;
/* Get the number of mappings, allocate space,
and read the mappings into prmaps. */
/* Open map fd. */
sprintf (pathname, "/proc/%d/map", pi->pid);
- if ((map_fd = open (pathname, O_RDONLY)) < 0)
- proc_error (pi, "iterate_over_mappings (open)", __LINE__);
- /* Make sure it gets closed again. */
- make_cleanup_close (map_fd);
+ scoped_fd map_fd (open (pathname, O_RDONLY));
+ if (map_fd.get () < 0)
+ proc_error (pi, "iterate_over_mappings (open)", __LINE__);
/* Use stat to determine the file size, and compute
the number of prmap_t objects it contains. */
- if (fstat (map_fd, &sbuf) != 0)
+ if (fstat (map_fd.get (), &sbuf) != 0)
proc_error (pi, "iterate_over_mappings (fstat)", __LINE__);
nmap = sbuf.st_size / sizeof (prmap_t);
prmaps = (struct prmap *) alloca ((nmap + 1) * sizeof (*prmaps));
- if (read (map_fd, (char *) prmaps, nmap * sizeof (*prmaps))
+ if (read (map_fd.get (), (char *) prmaps, nmap * sizeof (*prmaps))
!= (nmap * sizeof (*prmaps)))
proc_error (pi, "iterate_over_mappings (read)", __LINE__);
for (prmap = prmaps; nmap > 0; prmap++, nmap--)
if ((funcstat = (*func) (prmap, child_func, data)) != 0)
- {
- do_cleanups (cleanups);
- return funcstat;
- }
+ return funcstat;
- do_cleanups (cleanups);
return 0;
}