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| author | Ulrich Drepper <drepper@redhat.com> | 1999-02-19 00:00:05 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 1999-02-19 00:00:05 +0000 |
| commit | 61e0617ac34c4daaeb2f07f89a05c9f9353b8879 (patch) | |
| tree | 8dc1f2e00b67c6661892258bf2d479e793854c54 /elf/dl-load.c | |
| parent | 1a989e004c00955e60cd315666ebd450d6fa9732 (diff) | |
| download | glibc-61e0617ac34c4daaeb2f07f89a05c9f9353b8879.zip glibc-61e0617ac34c4daaeb2f07f89a05c9f9353b8879.tar.gz glibc-61e0617ac34c4daaeb2f07f89a05c9f9353b8879.tar.bz2 | |
Update.
* elf/link.h (link_map): Add l_dev and l_ino.
* elf/dl-load.c (_dl_map_object_from_fd): Test dev/ino of newly
loaded shared object with all laoded objects. Initialize l_ino
and l_dev in case it's new.
* elf/rtld.c (dl_main): Explain situation is l_dev/l_ino with main
object.
* elf/Makefile: Compile and run new test.
* elf/multiload.c: New file.
Diffstat (limited to 'elf/dl-load.c')
| -rw-r--r-- | elf/dl-load.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/elf/dl-load.c b/elf/dl-load.c index 84951ea..bf3e419 100644 --- a/elf/dl-load.c +++ b/elf/dl-load.c @@ -602,10 +602,15 @@ _dl_map_object_from_fd (const char *name, int fd, char *realname, int type; char *readbuf; ssize_t readlength; + struct stat st; + + /* Get file information. */ + if (__fstat (fd, &st) < 0) + lose (errno, "cannot stat shared object"); /* Look again to see if the real name matched another already loaded. */ for (l = _dl_loaded; l; l = l->l_next) - if (! strcmp (realname, l->l_name)) + if (l->l_ino == st.st_ino && l->l_dev == st.st_dev) { /* The object is already loaded. Just bump its reference count and return it. */ @@ -961,6 +966,10 @@ _dl_map_object_from_fd (const char *name, int fd, char *realname, l->l_scope[0] = &l->l_symbolic_searchlist; } + /* Finally the file information. */ + l->l_dev = st.st_dev; + l->l_ino = st.st_ino; + return l; } |