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-rw-r--r--ChangeLog21
-rw-r--r--elf/dl-addr.c5
-rw-r--r--elf/dl-lookup.c10
-rw-r--r--elf/elf.h5
-rw-r--r--sysdeps/generic/ldsodefs.h17
-rw-r--r--sysdeps/mips/ldsodefs.h15
-rw-r--r--sysdeps/mips/linkmap.h1
-rw-r--r--sysdeps/unix/sysv/linux/mips/ldsodefs.h2
-rw-r--r--sysdeps/unix/sysv/linux/mips/libc-abis2
9 files changed, 70 insertions, 8 deletions
diff --git a/ChangeLog b/ChangeLog
index 73b4d11..87d43d4 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,24 @@
+2019-08-29 Mihailo Stojanovic <mihailo.stojanovic@rt-rk.com>
+
+ * elf/dl-addr.c (determine_info): Calculate the symbol index
+ using the newly defined ELF_MACHINE_HASH_SYMIDX macro.
+ * elf/dl-lookup.c (do_lookup_x): Ditto.
+ (_dl_setup_hash): Initialize MIPS xhash translation table.
+ * elf/elf.h (SHT_MIPS_XHASH): New define.
+ (DT_MIPS_XHASH): New define.
+ * sysdeps/generic/ldsodefs.h (ELF_MACHINE_GNU_HASH_ADDRIDX): New
+ define.
+ (ELF_MACHINE_HASH_SYMIDX): Ditto.
+ (ELF_MACHINE_XHASH_SETUP): Ditto.
+ * sysdeps/mips/ldsodefs.h (ELF_MACHINE_GNU_HASH_ADDRIDX): New
+ define.
+ (ELF_MACHINE_HASH_SYMIDX): Ditto.
+ (ELF_MACHINE_XHASH_SETUP): Ditto.
+ * sysdeps/mips/linkmap.h (struct link_map_machine): New member.
+ * sysdeps/unix/sysv/linux/mips/ldsodefs.h: Increment valid ABI
+ version.
+ * sysdeps/unix/sysv/linux/mips/libc-abis: New ABI version.
+
2019-08-29 Adhemerval Zanella <adhemerval.zanella@linaro.org>
* sysdeps/sh/preconfigure.ac: New file.
diff --git a/elf/dl-addr.c b/elf/dl-addr.c
index 9d285d7..3f2297a 100644
--- a/elf/dl-addr.c
+++ b/elf/dl-addr.c
@@ -42,7 +42,7 @@ determine_info (const ElfW(Addr) addr, struct link_map *match, Dl_info *info,
ElfW(Word) strtabsize = match->l_info[DT_STRSZ]->d_un.d_val;
const ElfW(Sym) *matchsym = NULL;
- if (match->l_info[ADDRIDX (DT_GNU_HASH)] != NULL)
+ if (match->l_info[ELF_MACHINE_GNU_HASH_ADDRIDX] != NULL)
{
/* We look at all symbol table entries referenced by the hash
table. */
@@ -57,6 +57,7 @@ determine_info (const ElfW(Addr) addr, struct link_map *match, Dl_info *info,
{
/* The hash table never references local symbols so
we can omit that test here. */
+ symndx = ELF_MACHINE_HASH_SYMIDX (match, hasharr);
if ((symtab[symndx].st_shndx != SHN_UNDEF
|| symtab[symndx].st_value != 0)
&& symtab[symndx].st_shndx != SHN_ABS
@@ -65,8 +66,6 @@ determine_info (const ElfW(Addr) addr, struct link_map *match, Dl_info *info,
matchsym, addr)
&& symtab[symndx].st_name < strtabsize)
matchsym = (ElfW(Sym) *) &symtab[symndx];
-
- ++symndx;
}
while ((*hasharr++ & 1u) == 0);
}
diff --git a/elf/dl-lookup.c b/elf/dl-lookup.c
index eb23cca..f9d6c36 100644
--- a/elf/dl-lookup.c
+++ b/elf/dl-lookup.c
@@ -403,7 +403,7 @@ do_lookup_x (const char *undef_name, uint_fast32_t new_hash,
do
if (((*hasharr ^ new_hash) >> 1) == 0)
{
- symidx = hasharr - map->l_gnu_chain_zero;
+ symidx = ELF_MACHINE_HASH_SYMIDX (map, hasharr);
sym = check_match (undef_name, ref, version, flags,
type_class, &symtab[symidx], symidx,
strtab, map, &versioned_sym,
@@ -909,10 +909,10 @@ _dl_setup_hash (struct link_map *map)
{
Elf_Symndx *hash;
- if (__glibc_likely (map->l_info[ADDRIDX (DT_GNU_HASH)] != NULL))
+ if (__glibc_likely (map->l_info[ELF_MACHINE_GNU_HASH_ADDRIDX] != NULL))
{
Elf32_Word *hash32
- = (void *) D_PTR (map, l_info[ADDRIDX (DT_GNU_HASH)]);
+ = (void *) D_PTR (map, l_info[ELF_MACHINE_GNU_HASH_ADDRIDX]);
map->l_nbuckets = *hash32++;
Elf32_Word symbias = *hash32++;
Elf32_Word bitmask_nwords = *hash32++;
@@ -927,6 +927,10 @@ _dl_setup_hash (struct link_map *map)
map->l_gnu_buckets = hash32;
hash32 += map->l_nbuckets;
map->l_gnu_chain_zero = hash32 - symbias;
+
+ /* Initialize MIPS xhash translation table. */
+ ELF_MACHINE_XHASH_SETUP (hash32, symbias, map);
+
return;
}
diff --git a/elf/elf.h b/elf/elf.h
index 7c6d609..5b6ea63 100644
--- a/elf/elf.h
+++ b/elf/elf.h
@@ -1715,6 +1715,7 @@ typedef struct
#define SHT_MIPS_EH_REGION 0x70000027
#define SHT_MIPS_XLATE_OLD 0x70000028
#define SHT_MIPS_PDR_EXCEPTION 0x70000029
+#define SHT_MIPS_XHASH 0x7000002b
/* Legal values for sh_flags field of Elf32_Shdr. */
@@ -1962,7 +1963,9 @@ typedef struct
in a PIE as it stores a relative offset from the address of the tag
rather than an absolute address. */
#define DT_MIPS_RLD_MAP_REL 0x70000035
-#define DT_MIPS_NUM 0x36
+/* GNU-style hash table with xlat. */
+#define DT_MIPS_XHASH 0x70000036
+#define DT_MIPS_NUM 0x37
/* Legal values for DT_MIPS_FLAGS Elf32_Dyn entry. */
diff --git a/sysdeps/generic/ldsodefs.h b/sysdeps/generic/ldsodefs.h
index b1fc5c3..1e193b0 100644
--- a/sysdeps/generic/ldsodefs.h
+++ b/sysdeps/generic/ldsodefs.h
@@ -47,6 +47,23 @@ __BEGIN_DECLS
#define ADDRIDX(tag) (DT_NUM + DT_THISPROCNUM + DT_VERSIONTAGNUM \
+ DT_EXTRANUM + DT_VALNUM + DT_ADDRTAGIDX (tag))
+/* Type of GNU hash which the machine uses. */
+#ifndef ELF_MACHINE_GNU_HASH_ADDRIDX
+# define ELF_MACHINE_GNU_HASH_ADDRIDX ADDRIDX (DT_GNU_HASH)
+#endif
+
+/* Calculate the index of a symbol in GNU hash. */
+#ifndef ELF_MACHINE_HASH_SYMIDX
+# define ELF_MACHINE_HASH_SYMIDX(map, hasharr) \
+ ((hasharr) - (map)->l_gnu_chain_zero)
+#endif
+
+/* Setup MIPS xhash. Defined only for MIPS. */
+#ifndef ELF_MACHINE_XHASH_SETUP
+# define ELF_MACHINE_XHASH_SETUP(hash32, symbias, map) \
+ ((void) (hash32), (void) (symbias), (void) (map))
+#endif
+
/* We use this macro to refer to ELF types independent of the native wordsize.
`ElfW(TYPE)' is used in place of `Elf32_TYPE' or `Elf64_TYPE'. */
#define ELFW(type) _ElfW (ELF, __ELF_NATIVE_CLASS, type)
diff --git a/sysdeps/mips/ldsodefs.h b/sysdeps/mips/ldsodefs.h
index f0acb02..95cd38e 100644
--- a/sysdeps/mips/ldsodefs.h
+++ b/sysdeps/mips/ldsodefs.h
@@ -26,6 +26,21 @@ struct La_mips_32_retval;
struct La_mips_64_regs;
struct La_mips_64_retval;
+#define ELF_MACHINE_GNU_HASH_ADDRIDX (DT_MIPS_XHASH - DT_LOPROC + DT_NUM)
+
+/* Calculate the index of a symbol in MIPS xhash. */
+#define ELF_MACHINE_HASH_SYMIDX(map, hasharr) \
+ ((map)->l_mach.mips_xlat_zero[(hasharr) - (map)->l_gnu_chain_zero])
+
+/* Setup MIPS xhash. */
+#define ELF_MACHINE_XHASH_SETUP(hash32, symbias, map) \
+ do \
+ { \
+ (hash32) += (map)->l_info[DT_MIPS (SYMTABNO)]->d_un.d_val - (symbias); \
+ (map)->l_mach.mips_xlat_zero = (hash32) - (symbias); \
+ } \
+ while (0)
+
#define ARCH_PLTENTER_MEMBERS \
Elf32_Addr (*mips_o32_gnu_pltenter) (Elf32_Sym *, unsigned int, \
uintptr_t *, uintptr_t *, \
diff --git a/sysdeps/mips/linkmap.h b/sysdeps/mips/linkmap.h
index 1fb9678..1e640c3 100644
--- a/sysdeps/mips/linkmap.h
+++ b/sysdeps/mips/linkmap.h
@@ -3,4 +3,5 @@ struct link_map_machine
ElfW(Addr) plt; /* Address of .plt */
ElfW(Word) fpabi; /* FP ABI of the object */
unsigned int odd_spreg; /* Does the object require odd_spreg support? */
+ const Elf32_Word *mips_xlat_zero; /* .MIPS.xhash */
};
diff --git a/sysdeps/unix/sysv/linux/mips/ldsodefs.h b/sysdeps/unix/sysv/linux/mips/ldsodefs.h
index 28257f8..ce7b2f9 100644
--- a/sysdeps/unix/sysv/linux/mips/ldsodefs.h
+++ b/sysdeps/unix/sysv/linux/mips/ldsodefs.h
@@ -34,7 +34,7 @@ extern void _dl_static_init (struct link_map *map);
#undef VALID_ELF_ABIVERSION
#define VALID_ELF_ABIVERSION(osabi,ver) \
(ver == 0 \
- || (osabi == ELFOSABI_SYSV && ver < 5) \
+ || (osabi == ELFOSABI_SYSV && ver < 6) \
|| (osabi == ELFOSABI_GNU && ver < LIBC_ABI_MAX))
#endif /* ldsodefs.h */
diff --git a/sysdeps/unix/sysv/linux/mips/libc-abis b/sysdeps/unix/sysv/linux/mips/libc-abis
index eaea558..c0b67da 100644
--- a/sysdeps/unix/sysv/linux/mips/libc-abis
+++ b/sysdeps/unix/sysv/linux/mips/libc-abis
@@ -16,3 +16,5 @@ UNIQUE
MIPS_O32_FP64 mips*-*-linux*
# Absolute (SHN_ABS) symbols working correctly.
ABSOLUTE
+# GNU-style hash table with translation table.
+MIPS_XHASH
generated by cgit v1.1 at 2024-11-17 05:58:18 +0000