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-rw-r--r--ldso/ldso/Makefile1
-rw-r--r--ldso/ldso/arm/elfinterp.c4
-rw-r--r--ldso/ldso/dl-elf.c33
-rw-r--r--ldso/ldso/i386/elfinterp.c4
-rw-r--r--ldso/ldso/ldso.c17
-rw-r--r--ldso/ldso/m68k/elfinterp.c5
-rw-r--r--ldso/ldso/powerpc/elfinterp.c4
-rw-r--r--ldso/ldso/readelflib1.c33
-rw-r--r--ldso/ldso/sparc/elfinterp.c5
9 files changed, 86 insertions, 20 deletions
diff --git a/ldso/ldso/Makefile b/ldso/ldso/Makefile
index 06cdbbe37..55d3f00c6 100644
--- a/ldso/ldso/Makefile
+++ b/ldso/ldso/Makefile
@@ -29,6 +29,7 @@ LDSO_FULLNAME=ld-uClibc-$(MAJOR_VERSION).$(MINOR_VERSION).so
# Enable this to enable debugging output from ld.so
#XXFLAGS+= -DDL_DEBUG
+#XXFLAGS+= -DDL_DEBUG_SYMBOLS
XXFLAGS+=-DUCLIBC_TARGET_PREFIX=\"$(TARGET_PREFIX)\" \
-DUCLIBC_DEVEL_PREFIX=\"$(DEVEL_PREFIX)\" \
diff --git a/ldso/ldso/arm/elfinterp.c b/ldso/ldso/arm/elfinterp.c
index de9d50bc8..aac7ecc11 100644
--- a/ldso/ldso/arm/elfinterp.c
+++ b/ldso/ldso/arm/elfinterp.c
@@ -82,7 +82,7 @@ unsigned long _dl_linux_resolver(struct elf_resolve *tpnt, int reloc_entry)
(unsigned long) tpnt->loadaddr);
got_addr = (char **) instr_addr;
-#ifdef DL_DEBUG
+#ifdef DL_DEBUG_SYMBOLS
_dl_dprintf(2, "Resolving symbol %s\n",
strtab + symtab[symtab_index].st_name);
#endif
@@ -95,7 +95,7 @@ unsigned long _dl_linux_resolver(struct elf_resolve *tpnt, int reloc_entry)
_dl_progname, strtab + symtab[symtab_index].st_name);
_dl_exit(1);
};
-#ifdef DL_DEBUG
+#ifdef DL_DEBUG_SYMBOLS
if ((unsigned long) got_addr < 0x40000000) {
_dl_dprintf(2, "Calling library function: %s\n",
strtab + symtab[symtab_index].st_name);
diff --git a/ldso/ldso/dl-elf.c b/ldso/ldso/dl-elf.c
index 35de7a162..ba015042f 100644
--- a/ldso/ldso/dl-elf.c
+++ b/ldso/ldso/dl-elf.c
@@ -110,7 +110,7 @@ int _dl_unmap_cache(void)
static struct elf_resolve *
search_for_named_library(char *name, int secure, const char *path_list)
{
- int i, count = 0;
+ int i, count = 1;
char *path, *path_n;
char mylibname[2050];
struct elf_resolve *tpnt1;
@@ -154,11 +154,12 @@ search_for_named_library(char *name, int secure, const char *path_list)
unsigned long _dl_error_number;
unsigned long _dl_internal_error_number;
+extern char *_dl_ldsopath;
struct elf_resolve *_dl_load_shared_library(int secure,
struct elf_resolve *tpnt, char *full_libname)
{
- char *pnt;
+ char *pnt, *pnt1;
struct elf_resolve *tpnt1;
char *libname;
@@ -176,6 +177,9 @@ struct elf_resolve *_dl_load_shared_library(int secure,
pnt++;
}
+#ifdef DL_DEBUG
+ _dl_dprintf(2, "searching for library: '%s'\n", libname);
+#endif
/* If the filename has any '/', try it straight and leave it at that.
For IBCS2 compatibility under linux, we substitute the string
/usr/i486-sysv4/lib for /usr/lib in library names. */
@@ -197,6 +201,9 @@ struct elf_resolve *_dl_load_shared_library(int secure,
if (pnt) {
pnt += (unsigned long) tpnt->loadaddr +
tpnt->dynamic_info[DT_STRTAB];
+#ifdef DL_DEBUG
+ _dl_dprintf(2, "searching RPATH: '%s'\n", pnt);
+#endif
if ((tpnt1 = search_for_named_library(libname, secure, pnt)) != NULL)
{
return tpnt1;
@@ -207,6 +214,9 @@ struct elf_resolve *_dl_load_shared_library(int secure,
/* Check in LD_{ELF_}LIBRARY_PATH, if specified and allowed */
if (_dl_library_path) {
+#ifdef DL_DEBUG
+ _dl_dprintf(2, "searching _dl_library_path: '%s'\n", _dl_library_path);
+#endif
if ((tpnt1 = search_for_named_library(libname, secure, _dl_library_path)) != NULL)
{
return tpnt1;
@@ -236,8 +246,22 @@ struct elf_resolve *_dl_load_shared_library(int secure,
}
#endif
+ /* Look for libraries wherever the shared library loader
+ * was installed */
+#ifdef DL_DEBUG
+ _dl_dprintf(2, "searching in ldso dir: %s\n", _dl_ldsopath);
+#endif
+ if ((tpnt1 = search_for_named_library(libname, secure, _dl_ldsopath)) != NULL)
+ {
+ return tpnt1;
+ }
+
+
/* Lastly, search the standard list of paths for the library.
This list must exactly match the list in uClibc/ldso/util/ldd.c */
+#ifdef DL_DEBUG
+ _dl_dprintf(2, "searching full lib path list\n");
+#endif
if ((tpnt1 = search_for_named_library(libname, secure,
UCLIBC_TARGET_PREFIX "/usr/lib:"
UCLIBC_TARGET_PREFIX "/lib:"
@@ -250,12 +274,15 @@ struct elf_resolve *_dl_load_shared_library(int secure,
return tpnt1;
}
- goof:
+goof:
/* Well, we shot our wad on that one. All we can do now is punt */
if (_dl_internal_error_number)
_dl_error_number = _dl_internal_error_number;
else
_dl_error_number = DL_ERROR_NOFILE;
+#ifdef DL_DEBUG
+ _dl_dprintf(2, "Bummer: could not find '%s'!\n", libname);
+#endif
return NULL;
}
diff --git a/ldso/ldso/i386/elfinterp.c b/ldso/ldso/i386/elfinterp.c
index 8cd1eb21c..be19327a7 100644
--- a/ldso/ldso/i386/elfinterp.c
+++ b/ldso/ldso/i386/elfinterp.c
@@ -74,7 +74,7 @@ unsigned long _dl_linux_resolver(struct elf_resolve *tpnt, int reloc_entry)
(unsigned long) tpnt->loadaddr);
got_addr = (char **) instr_addr;
-#ifdef DL_DEBUG
+#ifdef DL_DEBUG_SYMBOLS
_dl_dprintf(2, "Resolving symbol %s\n",
strtab + symtab[symtab_index].st_name);
#endif
@@ -87,7 +87,7 @@ unsigned long _dl_linux_resolver(struct elf_resolve *tpnt, int reloc_entry)
_dl_progname, strtab + symtab[symtab_index].st_name);
_dl_exit(1);
};
-#ifdef DL_DEBUG
+#ifdef DL_DEBUG_SYMBOLS
if ((unsigned long) got_addr < 0x40000000) {
_dl_dprintf(2, "Calling library function: %s\n",
strtab + symtab[symtab_index].st_name);
diff --git a/ldso/ldso/ldso.c b/ldso/ldso/ldso.c
index 6a3f19c72..36580e26a 100644
--- a/ldso/ldso/ldso.c
+++ b/ldso/ldso/ldso.c
@@ -139,10 +139,11 @@
*/
#define REALIGN() malloc_buffer = (char *) (((unsigned long) malloc_buffer + 3) & ~(3))
-static char *_dl_malloc_addr, *_dl_mmap_zero;
char *_dl_library_path = 0; /* Where we look for libraries */
char *_dl_preload = 0; /* Things to be loaded before the libs. */
+char *_dl_ldsopath = 0;
static char *_dl_not_lazy = 0;
+static char *_dl_malloc_addr, *_dl_mmap_zero;
#ifdef DL_TRACE
static char *_dl_trace_loaded_objects = 0;
@@ -509,7 +510,7 @@ DL_BOOT(unsigned long args)
SEND_STDERR(" undefined.\n");
goof++;
}
-#ifdef DL_DEBUG
+#ifdef DL_DEBUG_SYMBOLS
SEND_STDERR("About to fixup symbol: ");
SEND_STDERR(strtab + symtab[symtab_index].st_name);
SEND_STDERR("\n");
@@ -661,6 +662,18 @@ static void _dl_get_ready_to_run(struct elf_resolve *tpnt, struct elf_resolve *a
(auxvt[AT_PHDR].a_un.a_val & 0xfffff000));
}
}
+ /* Store the path where the shared lib loader was found for
+ * later use */
+ {
+ char *pnt, *pnt1;
+ pnt = _dl_strdup(tpnt->libname);
+ pnt1 = _dl_strrchr(pnt, '/');
+ if (pnt != pnt1) {
+ *pnt1 = '\0';
+ _dl_ldsopath = pnt;
+ }
+ }
+
#ifdef DL_DEBUG
_dl_dprintf(2, "Lib Loader:\t(%x) %s\n", tpnt->loadaddr, tpnt->libname);
#endif
diff --git a/ldso/ldso/m68k/elfinterp.c b/ldso/ldso/m68k/elfinterp.c
index 167ce41dd..0fa8da827 100644
--- a/ldso/ldso/m68k/elfinterp.c
+++ b/ldso/ldso/m68k/elfinterp.c
@@ -83,7 +83,7 @@ unsigned int _dl_linux_resolver (int dummy1, int dummy2,
instr_addr = (int) this_reloc->r_offset + (int) tpnt->loadaddr;
got_addr = (char **) instr_addr;
-#ifdef DL_DEBUG
+#ifdef DL_DEBUG_SYMBOLS
_dl_dprintf (2, "Resolving symbol %s\n",
strtab + symtab[symtab_index].st_name);
#endif
@@ -97,8 +97,7 @@ unsigned int _dl_linux_resolver (int dummy1, int dummy2,
_dl_progname, strtab + symtab[symtab_index].st_name);
_dl_exit (1);
}
-/* #define DL_DEBUG */
-#ifdef DL_DEBUG
+#ifdef DL_DEBUG_SYMBOLS
if ((unsigned int) got_addr < 0x40000000)
_dl_dprintf (2, "Calling library function: %s\n",
strtab + symtab[symtab_index].st_name);
diff --git a/ldso/ldso/powerpc/elfinterp.c b/ldso/ldso/powerpc/elfinterp.c
index 1935960e9..aed640ee2 100644
--- a/ldso/ldso/powerpc/elfinterp.c
+++ b/ldso/ldso/powerpc/elfinterp.c
@@ -49,7 +49,7 @@ static char *_dl_reltypes[] =
working. */
-#ifdef DL_DEBUG
+#ifdef DL_DEBUG_SYMBOLS
static void debug_sym(Elf32_Sym *symtab,char *strtab,int symtab_index);
static void debug_reloc(ELF_RELOC *rpnt);
#define DPRINTF(fmt,args...) _dl_dprintf(2,fmt,args)
@@ -547,7 +547,7 @@ static void fixup_jmpslot(unsigned long reloc_addr, unsigned long targ_addr)
#endif
-#ifdef DL_DEBUG
+#ifdef DL_DEBUG_SYMBOLS
static void debug_sym(Elf32_Sym *symtab,char *strtab,int symtab_index)
{
if(symtab_index){
diff --git a/ldso/ldso/readelflib1.c b/ldso/ldso/readelflib1.c
index 35de7a162..ba015042f 100644
--- a/ldso/ldso/readelflib1.c
+++ b/ldso/ldso/readelflib1.c
@@ -110,7 +110,7 @@ int _dl_unmap_cache(void)
static struct elf_resolve *
search_for_named_library(char *name, int secure, const char *path_list)
{
- int i, count = 0;
+ int i, count = 1;
char *path, *path_n;
char mylibname[2050];
struct elf_resolve *tpnt1;
@@ -154,11 +154,12 @@ search_for_named_library(char *name, int secure, const char *path_list)
unsigned long _dl_error_number;
unsigned long _dl_internal_error_number;
+extern char *_dl_ldsopath;
struct elf_resolve *_dl_load_shared_library(int secure,
struct elf_resolve *tpnt, char *full_libname)
{
- char *pnt;
+ char *pnt, *pnt1;
struct elf_resolve *tpnt1;
char *libname;
@@ -176,6 +177,9 @@ struct elf_resolve *_dl_load_shared_library(int secure,
pnt++;
}
+#ifdef DL_DEBUG
+ _dl_dprintf(2, "searching for library: '%s'\n", libname);
+#endif
/* If the filename has any '/', try it straight and leave it at that.
For IBCS2 compatibility under linux, we substitute the string
/usr/i486-sysv4/lib for /usr/lib in library names. */
@@ -197,6 +201,9 @@ struct elf_resolve *_dl_load_shared_library(int secure,
if (pnt) {
pnt += (unsigned long) tpnt->loadaddr +
tpnt->dynamic_info[DT_STRTAB];
+#ifdef DL_DEBUG
+ _dl_dprintf(2, "searching RPATH: '%s'\n", pnt);
+#endif
if ((tpnt1 = search_for_named_library(libname, secure, pnt)) != NULL)
{
return tpnt1;
@@ -207,6 +214,9 @@ struct elf_resolve *_dl_load_shared_library(int secure,
/* Check in LD_{ELF_}LIBRARY_PATH, if specified and allowed */
if (_dl_library_path) {
+#ifdef DL_DEBUG
+ _dl_dprintf(2, "searching _dl_library_path: '%s'\n", _dl_library_path);
+#endif
if ((tpnt1 = search_for_named_library(libname, secure, _dl_library_path)) != NULL)
{
return tpnt1;
@@ -236,8 +246,22 @@ struct elf_resolve *_dl_load_shared_library(int secure,
}
#endif
+ /* Look for libraries wherever the shared library loader
+ * was installed */
+#ifdef DL_DEBUG
+ _dl_dprintf(2, "searching in ldso dir: %s\n", _dl_ldsopath);
+#endif
+ if ((tpnt1 = search_for_named_library(libname, secure, _dl_ldsopath)) != NULL)
+ {
+ return tpnt1;
+ }
+
+
/* Lastly, search the standard list of paths for the library.
This list must exactly match the list in uClibc/ldso/util/ldd.c */
+#ifdef DL_DEBUG
+ _dl_dprintf(2, "searching full lib path list\n");
+#endif
if ((tpnt1 = search_for_named_library(libname, secure,
UCLIBC_TARGET_PREFIX "/usr/lib:"
UCLIBC_TARGET_PREFIX "/lib:"
@@ -250,12 +274,15 @@ struct elf_resolve *_dl_load_shared_library(int secure,
return tpnt1;
}
- goof:
+goof:
/* Well, we shot our wad on that one. All we can do now is punt */
if (_dl_internal_error_number)
_dl_error_number = _dl_internal_error_number;
else
_dl_error_number = DL_ERROR_NOFILE;
+#ifdef DL_DEBUG
+ _dl_dprintf(2, "Bummer: could not find '%s'!\n", libname);
+#endif
return NULL;
}
diff --git a/ldso/ldso/sparc/elfinterp.c b/ldso/ldso/sparc/elfinterp.c
index 46754d6c7..3ccdcb41f 100644
--- a/ldso/ldso/sparc/elfinterp.c
+++ b/ldso/ldso/sparc/elfinterp.c
@@ -91,7 +91,7 @@ unsigned int _dl_linux_resolver(unsigned int reloc_entry, unsigned int * plt)
_dl_dprintf(2, "symtab_index %d\n", symtab_index);
-#ifdef DL_DEBUG
+#ifdef DL_DEBUG_SYMBOLS
_dl_dprintf(2, "Resolving symbol %s\n",
strtab + symtab[symtab_index].st_name);
#endif
@@ -104,8 +104,7 @@ unsigned int _dl_linux_resolver(unsigned int reloc_entry, unsigned int * plt)
_dl_progname, strtab + symtab[symtab_index].st_name);
_dl_exit(31);
};
-/* #define DL_DEBUG */
-#ifdef DL_DEBUG
+#ifdef DL_DEBUG_SYMBOLS
if((unsigned int) got_addr < 0x40000000) {
_dl_dprintf(2, "Calling library function: %s\n",
strtab + symtab[symtab_index].st_name);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-05 23:22:15 +0000