diff options
Diffstat (limited to 'binutils-2.25/bfd/elf32-hppa.c')
| -rw-r--r-- | binutils-2.25/bfd/elf32-hppa.c | 4686 |
1 files changed, 4686 insertions, 0 deletions
diff --git a/binutils-2.25/bfd/elf32-hppa.c b/binutils-2.25/bfd/elf32-hppa.c new file mode 100644 index 00000000..dfffbcba --- /dev/null +++ b/binutils-2.25/bfd/elf32-hppa.c @@ -0,0 +1,4686 @@ +/* BFD back-end for HP PA-RISC ELF files. + Copyright 1990-2013 Free Software Foundation, Inc. + + Original code by + Center for Software Science + Department of Computer Science + University of Utah + Largely rewritten by Alan Modra <alan@linuxcare.com.au> + Naming cleanup by Carlos O'Donell <carlos@systemhalted.org> + TLS support written by Randolph Chung <tausq@debian.org> + + This file is part of BFD, the Binary File Descriptor library. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#include "sysdep.h" +#include "bfd.h" +#include "libbfd.h" +#include "elf-bfd.h" +#include "elf/hppa.h" +#include "libhppa.h" +#include "elf32-hppa.h" +#define ARCH_SIZE 32 +#include "elf32-hppa.h" +#include "elf-hppa.h" + +/* In order to gain some understanding of code in this file without + knowing all the intricate details of the linker, note the + following: + + Functions named elf32_hppa_* are called by external routines, other + functions are only called locally. elf32_hppa_* functions appear + in this file more or less in the order in which they are called + from external routines. eg. elf32_hppa_check_relocs is called + early in the link process, elf32_hppa_finish_dynamic_sections is + one of the last functions. */ + +/* We use two hash tables to hold information for linking PA ELF objects. + + The first is the elf32_hppa_link_hash_table which is derived + from the standard ELF linker hash table. We use this as a place to + attach other hash tables and static information. + + The second is the stub hash table which is derived from the + base BFD hash table. The stub hash table holds the information + necessary to build the linker stubs during a link. + + There are a number of different stubs generated by the linker. + + Long branch stub: + : ldil LR'X,%r1 + : be,n RR'X(%sr4,%r1) + + PIC long branch stub: + : b,l .+8,%r1 + : addil LR'X - ($PIC_pcrel$0 - 4),%r1 + : be,n RR'X - ($PIC_pcrel$0 - 8)(%sr4,%r1) + + Import stub to call shared library routine from normal object file + (single sub-space version) + : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point + : ldw RR'lt_ptr+ltoff(%r1),%r21 + : bv %r0(%r21) + : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value. + + Import stub to call shared library routine from shared library + (single sub-space version) + : addil LR'ltoff,%r19 ; get procedure entry point + : ldw RR'ltoff(%r1),%r21 + : bv %r0(%r21) + : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value. + + Import stub to call shared library routine from normal object file + (multiple sub-space support) + : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point + : ldw RR'lt_ptr+ltoff(%r1),%r21 + : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value. + : ldsid (%r21),%r1 + : mtsp %r1,%sr0 + : be 0(%sr0,%r21) ; branch to target + : stw %rp,-24(%sp) ; save rp + + Import stub to call shared library routine from shared library + (multiple sub-space support) + : addil LR'ltoff,%r19 ; get procedure entry point + : ldw RR'ltoff(%r1),%r21 + : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value. + : ldsid (%r21),%r1 + : mtsp %r1,%sr0 + : be 0(%sr0,%r21) ; branch to target + : stw %rp,-24(%sp) ; save rp + + Export stub to return from shared lib routine (multiple sub-space support) + One of these is created for each exported procedure in a shared + library (and stored in the shared lib). Shared lib routines are + called via the first instruction in the export stub so that we can + do an inter-space return. Not required for single sub-space. + : bl,n X,%rp ; trap the return + : nop + : ldw -24(%sp),%rp ; restore the original rp + : ldsid (%rp),%r1 + : mtsp %r1,%sr0 + : be,n 0(%sr0,%rp) ; inter-space return. */ + + +/* Variable names follow a coding style. + Please follow this (Apps Hungarian) style: + + Structure/Variable Prefix + elf_link_hash_table "etab" + elf_link_hash_entry "eh" + + elf32_hppa_link_hash_table "htab" + elf32_hppa_link_hash_entry "hh" + + bfd_hash_table "btab" + bfd_hash_entry "bh" + + bfd_hash_table containing stubs "bstab" + elf32_hppa_stub_hash_entry "hsh" + + elf32_hppa_dyn_reloc_entry "hdh" + + Always remember to use GNU Coding Style. */ + +#define PLT_ENTRY_SIZE 8 +#define GOT_ENTRY_SIZE 4 +#define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1" + +static const bfd_byte plt_stub[] = +{ + 0x0e, 0x80, 0x10, 0x96, /* 1: ldw 0(%r20),%r22 */ + 0xea, 0xc0, 0xc0, 0x00, /* bv %r0(%r22) */ + 0x0e, 0x88, 0x10, 0x95, /* ldw 4(%r20),%r21 */ +#define PLT_STUB_ENTRY (3*4) + 0xea, 0x9f, 0x1f, 0xdd, /* b,l 1b,%r20 */ + 0xd6, 0x80, 0x1c, 0x1e, /* depi 0,31,2,%r20 */ + 0x00, 0xc0, 0xff, 0xee, /* 9: .word fixup_func */ + 0xde, 0xad, 0xbe, 0xef /* .word fixup_ltp */ +}; + +/* Section name for stubs is the associated section name plus this + string. */ +#define STUB_SUFFIX ".stub" + +/* We don't need to copy certain PC- or GP-relative dynamic relocs + into a shared object's dynamic section. All the relocs of the + limited class we are interested in, are absolute. */ +#ifndef RELATIVE_DYNRELOCS +#define RELATIVE_DYNRELOCS 0 +#define IS_ABSOLUTE_RELOC(r_type) 1 +#endif + +/* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid + copying dynamic variables from a shared lib into an app's dynbss + section, and instead use a dynamic relocation to point into the + shared lib. */ +#define ELIMINATE_COPY_RELOCS 1 + +enum elf32_hppa_stub_type +{ + hppa_stub_long_branch, + hppa_stub_long_branch_shared, + hppa_stub_import, + hppa_stub_import_shared, + hppa_stub_export, + hppa_stub_none +}; + +struct elf32_hppa_stub_hash_entry +{ + /* Base hash table entry structure. */ + struct bfd_hash_entry bh_root; + + /* The stub section. */ + asection *stub_sec; + + /* Offset within stub_sec of the beginning of this stub. */ + bfd_vma stub_offset; + + /* Given the symbol's value and its section we can determine its final + value when building the stubs (so the stub knows where to jump. */ + bfd_vma target_value; + asection *target_section; + + enum elf32_hppa_stub_type stub_type; + + /* The symbol table entry, if any, that this was derived from. */ + struct elf32_hppa_link_hash_entry *hh; + + /* Where this stub is being called from, or, in the case of combined + stub sections, the first input section in the group. */ + asection *id_sec; +}; + +struct elf32_hppa_link_hash_entry +{ + struct elf_link_hash_entry eh; + + /* A pointer to the most recently used stub hash entry against this + symbol. */ + struct elf32_hppa_stub_hash_entry *hsh_cache; + + /* Used to count relocations for delayed sizing of relocation + sections. */ + struct elf32_hppa_dyn_reloc_entry + { + /* Next relocation in the chain. */ + struct elf32_hppa_dyn_reloc_entry *hdh_next; + + /* The input section of the reloc. */ + asection *sec; + + /* Number of relocs copied in this section. */ + bfd_size_type count; + +#if RELATIVE_DYNRELOCS + /* Number of relative relocs copied for the input section. */ + bfd_size_type relative_count; +#endif + } *dyn_relocs; + + enum + { + GOT_UNKNOWN = 0, GOT_NORMAL = 1, GOT_TLS_GD = 2, GOT_TLS_LDM = 4, GOT_TLS_IE = 8 + } tls_type; + + /* Set if this symbol is used by a plabel reloc. */ + unsigned int plabel:1; +}; + +struct elf32_hppa_link_hash_table +{ + /* The main hash table. */ + struct elf_link_hash_table etab; + + /* The stub hash table. */ + struct bfd_hash_table bstab; + + /* Linker stub bfd. */ + bfd *stub_bfd; + + /* Linker call-backs. */ + asection * (*add_stub_section) (const char *, asection *); + void (*layout_sections_again) (void); + + /* Array to keep track of which stub sections have been created, and + information on stub grouping. */ + struct map_stub + { + /* This is the section to which stubs in the group will be + attached. */ + asection *link_sec; + /* The stub section. */ + asection *stub_sec; + } *stub_group; + + /* Assorted information used by elf32_hppa_size_stubs. */ + unsigned int bfd_count; + int top_index; + asection **input_list; + Elf_Internal_Sym **all_local_syms; + + /* Short-cuts to get to dynamic linker sections. */ + asection *sgot; + asection *srelgot; + asection *splt; + asection *srelplt; + asection *sdynbss; + asection *srelbss; + + /* Used during a final link to store the base of the text and data + segments so that we can perform SEGREL relocations. */ + bfd_vma text_segment_base; + bfd_vma data_segment_base; + + /* Whether we support multiple sub-spaces for shared libs. */ + unsigned int multi_subspace:1; + + /* Flags set when various size branches are detected. Used to + select suitable defaults for the stub group size. */ + unsigned int has_12bit_branch:1; + unsigned int has_17bit_branch:1; + unsigned int has_22bit_branch:1; + + /* Set if we need a .plt stub to support lazy dynamic linking. */ + unsigned int need_plt_stub:1; + + /* Small local sym cache. */ + struct sym_cache sym_cache; + + /* Data for LDM relocations. */ + union + { + bfd_signed_vma refcount; + bfd_vma offset; + } tls_ldm_got; +}; + +/* Various hash macros and functions. */ +#define hppa_link_hash_table(p) \ + (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \ + == HPPA32_ELF_DATA ? ((struct elf32_hppa_link_hash_table *) ((p)->hash)) : NULL) + +#define hppa_elf_hash_entry(ent) \ + ((struct elf32_hppa_link_hash_entry *)(ent)) + +#define hppa_stub_hash_entry(ent) \ + ((struct elf32_hppa_stub_hash_entry *)(ent)) + +#define hppa_stub_hash_lookup(table, string, create, copy) \ + ((struct elf32_hppa_stub_hash_entry *) \ + bfd_hash_lookup ((table), (string), (create), (copy))) + +#define hppa_elf_local_got_tls_type(abfd) \ + ((char *)(elf_local_got_offsets (abfd) + (elf_tdata (abfd)->symtab_hdr.sh_info * 2))) + +#define hh_name(hh) \ + (hh ? hh->eh.root.root.string : "<undef>") + +#define eh_name(eh) \ + (eh ? eh->root.root.string : "<undef>") + +/* Assorted hash table functions. */ + +/* Initialize an entry in the stub hash table. */ + +static struct bfd_hash_entry * +stub_hash_newfunc (struct bfd_hash_entry *entry, + struct bfd_hash_table *table, + const char *string) +{ + /* Allocate the structure if it has not already been allocated by a + subclass. */ + if (entry == NULL) + { + entry = bfd_hash_allocate (table, + sizeof (struct elf32_hppa_stub_hash_entry)); + if (entry == NULL) + return entry; + } + + /* Call the allocation method of the superclass. */ + entry = bfd_hash_newfunc (entry, table, string); + if (entry != NULL) + { + struct elf32_hppa_stub_hash_entry *hsh; + + /* Initialize the local fields. */ + hsh = hppa_stub_hash_entry (entry); + hsh->stub_sec = NULL; + hsh->stub_offset = 0; + hsh->target_value = 0; + hsh->target_section = NULL; + hsh->stub_type = hppa_stub_long_branch; + hsh->hh = NULL; + hsh->id_sec = NULL; + } + + return entry; +} + +/* Initialize an entry in the link hash table. */ + +static struct bfd_hash_entry * +hppa_link_hash_newfunc (struct bfd_hash_entry *entry, + struct bfd_hash_table *table, + const char *string) +{ + /* Allocate the structure if it has not already been allocated by a + subclass. */ + if (entry == NULL) + { + entry = bfd_hash_allocate (table, + sizeof (struct elf32_hppa_link_hash_entry)); + if (entry == NULL) + return entry; + } + + /* Call the allocation method of the superclass. */ + entry = _bfd_elf_link_hash_newfunc (entry, table, string); + if (entry != NULL) + { + struct elf32_hppa_link_hash_entry *hh; + + /* Initialize the local fields. */ + hh = hppa_elf_hash_entry (entry); + hh->hsh_cache = NULL; + hh->dyn_relocs = NULL; + hh->plabel = 0; + hh->tls_type = GOT_UNKNOWN; + } + + return entry; +} + +/* Create the derived linker hash table. The PA ELF port uses the derived + hash table to keep information specific to the PA ELF linker (without + using static variables). */ + +static struct bfd_link_hash_table * +elf32_hppa_link_hash_table_create (bfd *abfd) +{ + struct elf32_hppa_link_hash_table *htab; + bfd_size_type amt = sizeof (*htab); + + htab = bfd_zmalloc (amt); + if (htab == NULL) + return NULL; + + if (!_bfd_elf_link_hash_table_init (&htab->etab, abfd, hppa_link_hash_newfunc, + sizeof (struct elf32_hppa_link_hash_entry), + HPPA32_ELF_DATA)) + { + free (htab); + return NULL; + } + + /* Init the stub hash table too. */ + if (!bfd_hash_table_init (&htab->bstab, stub_hash_newfunc, + sizeof (struct elf32_hppa_stub_hash_entry))) + return NULL; + + htab->text_segment_base = (bfd_vma) -1; + htab->data_segment_base = (bfd_vma) -1; + return &htab->etab.root; +} + +/* Free the derived linker hash table. */ + +static void +elf32_hppa_link_hash_table_free (struct bfd_link_hash_table *btab) +{ + struct elf32_hppa_link_hash_table *htab + = (struct elf32_hppa_link_hash_table *) btab; + + bfd_hash_table_free (&htab->bstab); + _bfd_elf_link_hash_table_free (btab); +} + +/* Build a name for an entry in the stub hash table. */ + +static char * +hppa_stub_name (const asection *input_section, + const asection *sym_sec, + const struct elf32_hppa_link_hash_entry *hh, + const Elf_Internal_Rela *rela) +{ + char *stub_name; + bfd_size_type len; + + if (hh) + { + len = 8 + 1 + strlen (hh_name (hh)) + 1 + 8 + 1; + stub_name = bfd_malloc (len); + if (stub_name != NULL) + sprintf (stub_name, "%08x_%s+%x", + input_section->id & 0xffffffff, + hh_name (hh), + (int) rela->r_addend & 0xffffffff); + } + else + { + len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1; + stub_name = bfd_malloc (len); + if (stub_name != NULL) + sprintf (stub_name, "%08x_%x:%x+%x", + input_section->id & 0xffffffff, + sym_sec->id & 0xffffffff, + (int) ELF32_R_SYM (rela->r_info) & 0xffffffff, + (int) rela->r_addend & 0xffffffff); + } + return stub_name; +} + +/* Look up an entry in the stub hash. Stub entries are cached because + creating the stub name takes a bit of time. */ + +static struct elf32_hppa_stub_hash_entry * +hppa_get_stub_entry (const asection *input_section, + const asection *sym_sec, + struct elf32_hppa_link_hash_entry *hh, + const Elf_Internal_Rela *rela, + struct elf32_hppa_link_hash_table *htab) +{ + struct elf32_hppa_stub_hash_entry *hsh_entry; + const asection *id_sec; + + /* If this input section is part of a group of sections sharing one + stub section, then use the id of the first section in the group. + Stub names need to include a section id, as there may well be + more than one stub used to reach say, printf, and we need to + distinguish between them. */ + id_sec = htab->stub_group[input_section->id].link_sec; + + if (hh != NULL && hh->hsh_cache != NULL + && hh->hsh_cache->hh == hh + && hh->hsh_cache->id_sec == id_sec) + { + hsh_entry = hh->hsh_cache; + } + else + { + char *stub_name; + + stub_name = hppa_stub_name (id_sec, sym_sec, hh, rela); + if (stub_name == NULL) + return NULL; + + hsh_entry = hppa_stub_hash_lookup (&htab->bstab, + stub_name, FALSE, FALSE); + if (hh != NULL) + hh->hsh_cache = hsh_entry; + + free (stub_name); + } + + return hsh_entry; +} + +/* Add a new stub entry to the stub hash. Not all fields of the new + stub entry are initialised. */ + +static struct elf32_hppa_stub_hash_entry * +hppa_add_stub (const char *stub_name, + asection *section, + struct elf32_hppa_link_hash_table *htab) +{ + asection *link_sec; + asection *stub_sec; + struct elf32_hppa_stub_hash_entry *hsh; + + link_sec = htab->stub_group[section->id].link_sec; + stub_sec = htab->stub_group[section->id].stub_sec; + if (stub_sec == NULL) + { + stub_sec = htab->stub_group[link_sec->id].stub_sec; + if (stub_sec == NULL) + { + size_t namelen; + bfd_size_type len; + char *s_name; + + namelen = strlen (link_sec->name); + len = namelen + sizeof (STUB_SUFFIX); + s_name = bfd_alloc (htab->stub_bfd, len); + if (s_name == NULL) + return NULL; + + memcpy (s_name, link_sec->name, namelen); + memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX)); + stub_sec = (*htab->add_stub_section) (s_name, link_sec); + if (stub_sec == NULL) + return NULL; + htab->stub_group[link_sec->id].stub_sec = stub_sec; + } + htab->stub_group[section->id].stub_sec = stub_sec; + } + + /* Enter this entry into the linker stub hash table. */ + hsh = hppa_stub_hash_lookup (&htab->bstab, stub_name, + TRUE, FALSE); + if (hsh == NULL) + { + (*_bfd_error_handler) (_("%B: cannot create stub entry %s"), + section->owner, + stub_name); + return NULL; + } + + hsh->stub_sec = stub_sec; + hsh->stub_offset = 0; + hsh->id_sec = link_sec; + return hsh; +} + +/* Determine the type of stub needed, if any, for a call. */ + +static enum elf32_hppa_stub_type +hppa_type_of_stub (asection *input_sec, + const Elf_Internal_Rela *rela, + struct elf32_hppa_link_hash_entry *hh, + bfd_vma destination, + struct bfd_link_info *info) +{ + bfd_vma location; + bfd_vma branch_offset; + bfd_vma max_branch_offset; + unsigned int r_type; + + if (hh != NULL + && hh->eh.plt.offset != (bfd_vma) -1 + && hh->eh.dynindx != -1 + && !hh->plabel + && (info->shared + || !hh->eh.def_regular + || hh->eh.root.type == bfd_link_hash_defweak)) + { + /* We need an import stub. Decide between hppa_stub_import + and hppa_stub_import_shared later. */ + return hppa_stub_import; + } + + /* Determine where the call point is. */ + location = (input_sec->output_offset + + input_sec->output_section->vma + + rela->r_offset); + + branch_offset = destination - location - 8; + r_type = ELF32_R_TYPE (rela->r_info); + + /* Determine if a long branch stub is needed. parisc branch offsets + are relative to the second instruction past the branch, ie. +8 + bytes on from the branch instruction location. The offset is + signed and counts in units of 4 bytes. */ + if (r_type == (unsigned int) R_PARISC_PCREL17F) + max_branch_offset = (1 << (17 - 1)) << 2; + + else if (r_type == (unsigned int) R_PARISC_PCREL12F) + max_branch_offset = (1 << (12 - 1)) << 2; + + else /* R_PARISC_PCREL22F. */ + max_branch_offset = (1 << (22 - 1)) << 2; + + if (branch_offset + max_branch_offset >= 2*max_branch_offset) + return hppa_stub_long_branch; + + return hppa_stub_none; +} + +/* Build one linker stub as defined by the stub hash table entry GEN_ENTRY. + IN_ARG contains the link info pointer. */ + +#define LDIL_R1 0x20200000 /* ldil LR'XXX,%r1 */ +#define BE_SR4_R1 0xe0202002 /* be,n RR'XXX(%sr4,%r1) */ + +#define BL_R1 0xe8200000 /* b,l .+8,%r1 */ +#define ADDIL_R1 0x28200000 /* addil LR'XXX,%r1,%r1 */ +#define DEPI_R1 0xd4201c1e /* depi 0,31,2,%r1 */ + +#define ADDIL_DP 0x2b600000 /* addil LR'XXX,%dp,%r1 */ +#define LDW_R1_R21 0x48350000 /* ldw RR'XXX(%sr0,%r1),%r21 */ +#define BV_R0_R21 0xeaa0c000 /* bv %r0(%r21) */ +#define LDW_R1_R19 0x48330000 /* ldw RR'XXX(%sr0,%r1),%r19 */ + +#define ADDIL_R19 0x2a600000 /* addil LR'XXX,%r19,%r1 */ +#define LDW_R1_DP 0x483b0000 /* ldw RR'XXX(%sr0,%r1),%dp */ + +#define LDSID_R21_R1 0x02a010a1 /* ldsid (%sr0,%r21),%r1 */ +#define MTSP_R1 0x00011820 /* mtsp %r1,%sr0 */ +#define BE_SR0_R21 0xe2a00000 /* be 0(%sr0,%r21) */ +#define STW_RP 0x6bc23fd1 /* stw %rp,-24(%sr0,%sp) */ + +#define BL22_RP 0xe800a002 /* b,l,n XXX,%rp */ +#define BL_RP 0xe8400002 /* b,l,n XXX,%rp */ +#define NOP 0x08000240 /* nop */ +#define LDW_RP 0x4bc23fd1 /* ldw -24(%sr0,%sp),%rp */ +#define LDSID_RP_R1 0x004010a1 /* ldsid (%sr0,%rp),%r1 */ +#define BE_SR0_RP 0xe0400002 /* be,n 0(%sr0,%rp) */ + +#ifndef R19_STUBS +#define R19_STUBS 1 +#endif + +#if R19_STUBS +#define LDW_R1_DLT LDW_R1_R19 +#else +#define LDW_R1_DLT LDW_R1_DP +#endif + +static bfd_boolean +hppa_build_one_stub (struct bfd_hash_entry *bh, void *in_arg) +{ + struct elf32_hppa_stub_hash_entry *hsh; + struct bfd_link_info *info; + struct elf32_hppa_link_hash_table *htab; + asection *stub_sec; + bfd *stub_bfd; + bfd_byte *loc; + bfd_vma sym_value; + bfd_vma insn; + bfd_vma off; + int val; + int size; + + /* Massage our args to the form they really have. */ + hsh = hppa_stub_hash_entry (bh); + info = (struct bfd_link_info *)in_arg; + + htab = hppa_link_hash_table (info); + if (htab == NULL) + return FALSE; + + stub_sec = hsh->stub_sec; + + /* Make a note of the offset within the stubs for this entry. */ + hsh->stub_offset = stub_sec->size; + loc = stub_sec->contents + hsh->stub_offset; + + stub_bfd = stub_sec->owner; + + switch (hsh->stub_type) + { + case hppa_stub_long_branch: + /* Create the long branch. A long branch is formed with "ldil" + loading the upper bits of the target address into a register, + then branching with "be" which adds in the lower bits. + The "be" has its delay slot nullified. */ + sym_value = (hsh->target_value + + hsh->target_section->output_offset + + hsh->target_section->output_section->vma); + + val = hppa_field_adjust (sym_value, 0, e_lrsel); + insn = hppa_rebuild_insn ((int) LDIL_R1, val, 21); + bfd_put_32 (stub_bfd, insn, loc); + + val = hppa_field_adjust (sym_value, 0, e_rrsel) >> 2; + insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17); + bfd_put_32 (stub_bfd, insn, loc + 4); + + size = 8; + break; + + case hppa_stub_long_branch_shared: + /* Branches are relative. This is where we are going to. */ + sym_value = (hsh->target_value + + hsh->target_section->output_offset + + hsh->target_section->output_section->vma); + + /* And this is where we are coming from, more or less. */ + sym_value -= (hsh->stub_offset + + stub_sec->output_offset + + stub_sec->output_section->vma); + + bfd_put_32 (stub_bfd, (bfd_vma) BL_R1, loc); + val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_lrsel); + insn = hppa_rebuild_insn ((int) ADDIL_R1, val, 21); + bfd_put_32 (stub_bfd, insn, loc + 4); + + val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_rrsel) >> 2; + insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17); + bfd_put_32 (stub_bfd, insn, loc + 8); + size = 12; + break; + + case hppa_stub_import: + case hppa_stub_import_shared: + off = hsh->hh->eh.plt.offset; + if (off >= (bfd_vma) -2) + abort (); + + off &= ~ (bfd_vma) 1; + sym_value = (off + + htab->splt->output_offset + + htab->splt->output_section->vma + - elf_gp (htab->splt->output_section->owner)); + + insn = ADDIL_DP; +#if R19_STUBS + if (hsh->stub_type == hppa_stub_import_shared) + insn = ADDIL_R19; +#endif + val = hppa_field_adjust (sym_value, 0, e_lrsel), + insn = hppa_rebuild_insn ((int) insn, val, 21); + bfd_put_32 (stub_bfd, insn, loc); + + /* It is critical to use lrsel/rrsel here because we are using + two different offsets (+0 and +4) from sym_value. If we use + lsel/rsel then with unfortunate sym_values we will round + sym_value+4 up to the next 2k block leading to a mis-match + between the lsel and rsel value. */ + val = hppa_field_adjust (sym_value, 0, e_rrsel); + insn = hppa_rebuild_insn ((int) LDW_R1_R21, val, 14); + bfd_put_32 (stub_bfd, insn, loc + 4); + + if (htab->multi_subspace) + { + val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel); + insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14); + bfd_put_32 (stub_bfd, insn, loc + 8); + + bfd_put_32 (stub_bfd, (bfd_vma) LDSID_R21_R1, loc + 12); + bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16); + bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_R21, loc + 20); + bfd_put_32 (stub_bfd, (bfd_vma) STW_RP, loc + 24); + + size = 28; + } + else + { + bfd_put_32 (stub_bfd, (bfd_vma) BV_R0_R21, loc + 8); + val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel); + insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14); + bfd_put_32 (stub_bfd, insn, loc + 12); + + size = 16; + } + + break; + + case hppa_stub_export: + /* Branches are relative. This is where we are going to. */ + sym_value = (hsh->target_value + + hsh->target_section->output_offset + + hsh->target_section->output_section->vma); + + /* And this is where we are coming from. */ + sym_value -= (hsh->stub_offset + + stub_sec->output_offset + + stub_sec->output_section->vma); + + if (sym_value - 8 + (1 << (17 + 1)) >= (1 << (17 + 2)) + && (!htab->has_22bit_branch + || sym_value - 8 + (1 << (22 + 1)) >= (1 << (22 + 2)))) + { + (*_bfd_error_handler) + (_("%B(%A+0x%lx): cannot reach %s, recompile with -ffunction-sections"), + hsh->target_section->owner, + stub_sec, + (long) hsh->stub_offset, + hsh->bh_root.string); + bfd_set_error (bfd_error_bad_value); + return FALSE; + } + + val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_fsel) >> 2; + if (!htab->has_22bit_branch) + insn = hppa_rebuild_insn ((int) BL_RP, val, 17); + else + insn = hppa_rebuild_insn ((int) BL22_RP, val, 22); + bfd_put_32 (stub_bfd, insn, loc); + + bfd_put_32 (stub_bfd, (bfd_vma) NOP, loc + 4); + bfd_put_32 (stub_bfd, (bfd_vma) LDW_RP, loc + 8); + bfd_put_32 (stub_bfd, (bfd_vma) LDSID_RP_R1, loc + 12); + bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16); + bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_RP, loc + 20); + + /* Point the function symbol at the stub. */ + hsh->hh->eh.root.u.def.section = stub_sec; + hsh->hh->eh.root.u.def.value = stub_sec->size; + + size = 24; + break; + + default: + BFD_FAIL (); + return FALSE; + } + + stub_sec->size += size; + return TRUE; +} + +#undef LDIL_R1 +#undef BE_SR4_R1 +#undef BL_R1 +#undef ADDIL_R1 +#undef DEPI_R1 +#undef LDW_R1_R21 +#undef LDW_R1_DLT +#undef LDW_R1_R19 +#undef ADDIL_R19 +#undef LDW_R1_DP +#undef LDSID_R21_R1 +#undef MTSP_R1 +#undef BE_SR0_R21 +#undef STW_RP +#undef BV_R0_R21 +#undef BL_RP +#undef NOP +#undef LDW_RP +#undef LDSID_RP_R1 +#undef BE_SR0_RP + +/* As above, but don't actually build the stub. Just bump offset so + we know stub section sizes. */ + +static bfd_boolean +hppa_size_one_stub (struct bfd_hash_entry *bh, void *in_arg) +{ + struct elf32_hppa_stub_hash_entry *hsh; + struct elf32_hppa_link_hash_table *htab; + int size; + + /* Massage our args to the form they really have. */ + hsh = hppa_stub_hash_entry (bh); + htab = in_arg; + + if (hsh->stub_type == hppa_stub_long_branch) + size = 8; + else if (hsh->stub_type == hppa_stub_long_branch_shared) + size = 12; + else if (hsh->stub_type == hppa_stub_export) + size = 24; + else /* hppa_stub_import or hppa_stub_import_shared. */ + { + if (htab->multi_subspace) + size = 28; + else + size = 16; + } + + hsh->stub_sec->size += size; + return TRUE; +} + +/* Return nonzero if ABFD represents an HPPA ELF32 file. + Additionally we set the default architecture and machine. */ + +static bfd_boolean +elf32_hppa_object_p (bfd *abfd) +{ + Elf_Internal_Ehdr * i_ehdrp; + unsigned int flags; + + i_ehdrp = elf_elfheader (abfd); + if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0) + { + /* GCC on hppa-linux produces binaries with OSABI=GNU, + but the kernel produces corefiles with OSABI=SysV. */ + if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_GNU && + i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */ + return FALSE; + } + else if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0) + { + /* GCC on hppa-netbsd produces binaries with OSABI=NetBSD, + but the kernel produces corefiles with OSABI=SysV. */ + if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NETBSD && + i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */ + return FALSE; + } + else + { + if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX) + return FALSE; + } + + flags = i_ehdrp->e_flags; + switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE)) + { + case EFA_PARISC_1_0: + return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 10); + case EFA_PARISC_1_1: + return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 11); + case EFA_PARISC_2_0: + return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 20); + case EFA_PARISC_2_0 | EF_PARISC_WIDE: + return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25); + } + return TRUE; +} + +/* Create the .plt and .got sections, and set up our hash table + short-cuts to various dynamic sections. */ + +static bfd_boolean +elf32_hppa_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) +{ + struct elf32_hppa_link_hash_table *htab; + struct elf_link_hash_entry *eh; + + /* Don't try to create the .plt and .got twice. */ + htab = hppa_link_hash_table (info); + if (htab == NULL) + return FALSE; + if (htab->splt != NULL) + return TRUE; + + /* Call the generic code to do most of the work. */ + if (! _bfd_elf_create_dynamic_sections (abfd, info)) + return FALSE; + + htab->splt = bfd_get_linker_section (abfd, ".plt"); + htab->srelplt = bfd_get_linker_section (abfd, ".rela.plt"); + + htab->sgot = bfd_get_linker_section (abfd, ".got"); + htab->srelgot = bfd_get_linker_section (abfd, ".rela.got"); + + htab->sdynbss = bfd_get_linker_section (abfd, ".dynbss"); + htab->srelbss = bfd_get_linker_section (abfd, ".rela.bss"); + + /* hppa-linux needs _GLOBAL_OFFSET_TABLE_ to be visible from the main + application, because __canonicalize_funcptr_for_compare needs it. */ + eh = elf_hash_table (info)->hgot; + eh->forced_local = 0; + eh->other = STV_DEFAULT; + return bfd_elf_link_record_dynamic_symbol (info, eh); +} + +/* Copy the extra info we tack onto an elf_link_hash_entry. */ + +static void +elf32_hppa_copy_indirect_symbol (struct bfd_link_info *info, + struct elf_link_hash_entry *eh_dir, + struct elf_link_hash_entry *eh_ind) +{ + struct elf32_hppa_link_hash_entry *hh_dir, *hh_ind; + + hh_dir = hppa_elf_hash_entry (eh_dir); + hh_ind = hppa_elf_hash_entry (eh_ind); + + if (hh_ind->dyn_relocs != NULL) + { + if (hh_dir->dyn_relocs != NULL) + { + struct elf32_hppa_dyn_reloc_entry **hdh_pp; + struct elf32_hppa_dyn_reloc_entry *hdh_p; + + /* Add reloc counts against the indirect sym to the direct sym + list. Merge any entries against the same section. */ + for (hdh_pp = &hh_ind->dyn_relocs; (hdh_p = *hdh_pp) != NULL; ) + { + struct elf32_hppa_dyn_reloc_entry *hdh_q; + + for (hdh_q = hh_dir->dyn_relocs; + hdh_q != NULL; + hdh_q = hdh_q->hdh_next) + if (hdh_q->sec == hdh_p->sec) + { +#if RELATIVE_DYNRELOCS + hdh_q->relative_count += hdh_p->relative_count; +#endif + hdh_q->count += hdh_p->count; + *hdh_pp = hdh_p->hdh_next; + break; + } + if (hdh_q == NULL) + hdh_pp = &hdh_p->hdh_next; + } + *hdh_pp = hh_dir->dyn_relocs; + } + + hh_dir->dyn_relocs = hh_ind->dyn_relocs; + hh_ind->dyn_relocs = NULL; + } + + if (ELIMINATE_COPY_RELOCS + && eh_ind->root.type != bfd_link_hash_indirect + && eh_dir->dynamic_adjusted) + { + /* If called to transfer flags for a weakdef during processing + of elf_adjust_dynamic_symbol, don't copy non_got_ref. + We clear it ourselves for ELIMINATE_COPY_RELOCS. */ + eh_dir->ref_dynamic |= eh_ind->ref_dynamic; + eh_dir->ref_regular |= eh_ind->ref_regular; + eh_dir->ref_regular_nonweak |= eh_ind->ref_regular_nonweak; + eh_dir->needs_plt |= eh_ind->needs_plt; + } + else + { + if (eh_ind->root.type == bfd_link_hash_indirect + && eh_dir->got.refcount <= 0) + { + hh_dir->tls_type = hh_ind->tls_type; + hh_ind->tls_type = GOT_UNKNOWN; + } + + _bfd_elf_link_hash_copy_indirect (info, eh_dir, eh_ind); + } +} + +static int +elf32_hppa_optimized_tls_reloc (struct bfd_link_info *info ATTRIBUTE_UNUSED, + int r_type, int is_local ATTRIBUTE_UNUSED) +{ + /* For now we don't support linker optimizations. */ + return r_type; +} + +/* Return a pointer to the local GOT, PLT and TLS reference counts + for ABFD. Returns NULL if the storage allocation fails. */ + +static bfd_signed_vma * +hppa32_elf_local_refcounts (bfd *abfd) +{ + Elf_Internal_Shdr *symtab_hdr = &elf_tdata (abfd)->symtab_hdr; + bfd_signed_vma *local_refcounts; + + local_refcounts = elf_local_got_refcounts (abfd); + if (local_refcounts == NULL) + { + bfd_size_type size; + + /* Allocate space for local GOT and PLT reference + counts. Done this way to save polluting elf_obj_tdata + with another target specific pointer. */ + size = symtab_hdr->sh_info; + size *= 2 * sizeof (bfd_signed_vma); + /* Add in space to store the local GOT TLS types. */ + size += symtab_hdr->sh_info; + local_refcounts = bfd_zalloc (abfd, size); + if (local_refcounts == NULL) + return NULL; + elf_local_got_refcounts (abfd) = local_refcounts; + memset (hppa_elf_local_got_tls_type (abfd), GOT_UNKNOWN, + symtab_hdr->sh_info); + } + return local_refcounts; +} + + +/* Look through the relocs for a section during the first phase, and + calculate needed space in the global offset table, procedure linkage + table, and dynamic reloc sections. At this point we haven't + necessarily read all the input files. */ + +static bfd_boolean +elf32_hppa_check_relocs (bfd *abfd, + struct bfd_link_info *info, + asection *sec, + const Elf_Internal_Rela *relocs) +{ + Elf_Internal_Shdr *symtab_hdr; + struct elf_link_hash_entry **eh_syms; + const Elf_Internal_Rela *rela; + const Elf_Internal_Rela *rela_end; + struct elf32_hppa_link_hash_table *htab; + asection *sreloc; + int tls_type = GOT_UNKNOWN, old_tls_type = GOT_UNKNOWN; + + if (info->relocatable) + return TRUE; + + htab = hppa_link_hash_table (info); + if (htab == NULL) + return FALSE; + symtab_hdr = &elf_tdata (abfd)->symtab_hdr; + eh_syms = elf_sym_hashes (abfd); + sreloc = NULL; + + rela_end = relocs + sec->reloc_count; + for (rela = relocs; rela < rela_end; rela++) + { + enum { + NEED_GOT = 1, + NEED_PLT = 2, + NEED_DYNREL = 4, + PLT_PLABEL = 8 + }; + + unsigned int r_symndx, r_type; + struct elf32_hppa_link_hash_entry *hh; + int need_entry = 0; + + r_symndx = ELF32_R_SYM (rela->r_info); + + if (r_symndx < symtab_hdr->sh_info) + hh = NULL; + else + { + hh = hppa_elf_hash_entry (eh_syms[r_symndx - symtab_hdr->sh_info]); + while (hh->eh.root.type == bfd_link_hash_indirect + || hh->eh.root.type == bfd_link_hash_warning) + hh = hppa_elf_hash_entry (hh->eh.root.u.i.link); + + /* PR15323, ref flags aren't set for references in the same + object. */ + hh->eh.root.non_ir_ref = 1; + } + + r_type = ELF32_R_TYPE (rela->r_info); + r_type = elf32_hppa_optimized_tls_reloc (info, r_type, hh == NULL); + + switch (r_type) + { + case R_PARISC_DLTIND14F: + case R_PARISC_DLTIND14R: + case R_PARISC_DLTIND21L: + /* This symbol requires a global offset table entry. */ + need_entry = NEED_GOT; + break; + + case R_PARISC_PLABEL14R: /* "Official" procedure labels. */ + case R_PARISC_PLABEL21L: + case R_PARISC_PLABEL32: + /* If the addend is non-zero, we break badly. */ + if (rela->r_addend != 0) + abort (); + + /* If we are creating a shared library, then we need to + create a PLT entry for all PLABELs, because PLABELs with + local symbols may be passed via a pointer to another + object. Additionally, output a dynamic relocation + pointing to the PLT entry. + + For executables, the original 32-bit ABI allowed two + different styles of PLABELs (function pointers): For + global functions, the PLABEL word points into the .plt + two bytes past a (function address, gp) pair, and for + local functions the PLABEL points directly at the + function. The magic +2 for the first type allows us to + differentiate between the two. As you can imagine, this + is a real pain when it comes to generating code to call + functions indirectly or to compare function pointers. + We avoid the mess by always pointing a PLABEL into the + .plt, even for local functions. */ + need_entry = PLT_PLABEL | NEED_PLT | NEED_DYNREL; + break; + + case R_PARISC_PCREL12F: + htab->has_12bit_branch = 1; + goto branch_common; + + case R_PARISC_PCREL17C: + case R_PARISC_PCREL17F: + htab->has_17bit_branch = 1; + goto branch_common; + + case R_PARISC_PCREL22F: + htab->has_22bit_branch = 1; + branch_common: + /* Function calls might need to go through the .plt, and + might require long branch stubs. */ + if (hh == NULL) + { + /* We know local syms won't need a .plt entry, and if + they need a long branch stub we can't guarantee that + we can reach the stub. So just flag an error later + if we're doing a shared link and find we need a long + branch stub. */ + continue; + } + else + { + /* Global symbols will need a .plt entry if they remain + global, and in most cases won't need a long branch + stub. Unfortunately, we have to cater for the case + where a symbol is forced local by versioning, or due + to symbolic linking, and we lose the .plt entry. */ + need_entry = NEED_PLT; + if (hh->eh.type == STT_PARISC_MILLI) + need_entry = 0; + } + break; + + case R_PARISC_SEGBASE: /* Used to set segment base. */ + case R_PARISC_SEGREL32: /* Relative reloc, used for unwind. */ + case R_PARISC_PCREL14F: /* PC relative load/store. */ + case R_PARISC_PCREL14R: + case R_PARISC_PCREL17R: /* External branches. */ + case R_PARISC_PCREL21L: /* As above, and for load/store too. */ + case R_PARISC_PCREL32: + /* We don't need to propagate the relocation if linking a + shared object since these are section relative. */ + continue; + + case R_PARISC_DPREL14F: /* Used for gp rel data load/store. */ + case R_PARISC_DPREL14R: + case R_PARISC_DPREL21L: + if (info->shared) + { + (*_bfd_error_handler) + (_("%B: relocation %s can not be used when making a shared object; recompile with -fPIC"), + abfd, + elf_hppa_howto_table[r_type].name); + bfd_set_error (bfd_error_bad_value); + return FALSE; + } + /* Fall through. */ + + case R_PARISC_DIR17F: /* Used for external branches. */ + case R_PARISC_DIR17R: + case R_PARISC_DIR14F: /* Used for load/store from absolute locn. */ + case R_PARISC_DIR14R: + case R_PARISC_DIR21L: /* As above, and for ext branches too. */ + case R_PARISC_DIR32: /* .word relocs. */ + /* We may want to output a dynamic relocation later. */ + need_entry = NEED_DYNREL; + break; + + /* This relocation describes the C++ object vtable hierarchy. + Reconstruct it for later use during GC. */ + case R_PARISC_GNU_VTINHERIT: + if (!bfd_elf_gc_record_vtinherit (abfd, sec, &hh->eh, rela->r_offset)) + return FALSE; + continue; + + /* This relocation describes which C++ vtable entries are actually + used. Record for later use during GC. */ + case R_PARISC_GNU_VTENTRY: + BFD_ASSERT (hh != NULL); + if (hh != NULL + && !bfd_elf_gc_record_vtentry (abfd, sec, &hh->eh, rela->r_addend)) + return FALSE; + continue; + + case R_PARISC_TLS_GD21L: + case R_PARISC_TLS_GD14R: + case R_PARISC_TLS_LDM21L: + case R_PARISC_TLS_LDM14R: + need_entry = NEED_GOT; + break; + + case R_PARISC_TLS_IE21L: + case R_PARISC_TLS_IE14R: + if (info->shared) + info->flags |= DF_STATIC_TLS; + need_entry = NEED_GOT; + break; + + default: + continue; + } + + /* Now carry out our orders. */ + if (need_entry & NEED_GOT) + { + switch (r_type) + { + default: + tls_type = GOT_NORMAL; + break; + case R_PARISC_TLS_GD21L: + case R_PARISC_TLS_GD14R: + tls_type |= GOT_TLS_GD; + break; + case R_PARISC_TLS_LDM21L: + case R_PARISC_TLS_LDM14R: + tls_type |= GOT_TLS_LDM; + break; + case R_PARISC_TLS_IE21L: + case R_PARISC_TLS_IE14R: + tls_type |= GOT_TLS_IE; + break; + } + + /* Allocate space for a GOT entry, as well as a dynamic + relocation for this entry. */ + if (htab->sgot == NULL) + { + if (htab->etab.dynobj == NULL) + htab->etab.dynobj = abfd; + if (!elf32_hppa_create_dynamic_sections (htab->etab.dynobj, info)) + return FALSE; + } + + if (r_type == R_PARISC_TLS_LDM21L + || r_type == R_PARISC_TLS_LDM14R) + htab->tls_ldm_got.refcount += 1; + else + { + if (hh != NULL) + { + hh->eh.got.refcount += 1; + old_tls_type = hh->tls_type; + } + else + { + bfd_signed_vma *local_got_refcounts; + + /* This is a global offset table entry for a local symbol. */ + local_got_refcounts = hppa32_elf_local_refcounts (abfd); + if (local_got_refcounts == NULL) + return FALSE; + local_got_refcounts[r_symndx] += 1; + + old_tls_type = hppa_elf_local_got_tls_type (abfd) [r_symndx]; + } + + tls_type |= old_tls_type; + + if (old_tls_type != tls_type) + { + if (hh != NULL) + hh->tls_type = tls_type; + else + hppa_elf_local_got_tls_type (abfd) [r_symndx] = tls_type; + } + + } + } + + if (need_entry & NEED_PLT) + { + /* If we are creating a shared library, and this is a reloc + against a weak symbol or a global symbol in a dynamic + object, then we will be creating an import stub and a + .plt entry for the symbol. Similarly, on a normal link + to symbols defined in a dynamic object we'll need the + import stub and a .plt entry. We don't know yet whether + the symbol is defined or not, so make an entry anyway and + clean up later in adjust_dynamic_symbol. */ + if ((sec->flags & SEC_ALLOC) != 0) + { + if (hh != NULL) + { + hh->eh.needs_plt = 1; + hh->eh.plt.refcount += 1; + + /* If this .plt entry is for a plabel, mark it so + that adjust_dynamic_symbol will keep the entry + even if it appears to be local. */ + if (need_entry & PLT_PLABEL) + hh->plabel = 1; + } + else if (need_entry & PLT_PLABEL) + { + bfd_signed_vma *local_got_refcounts; + bfd_signed_vma *local_plt_refcounts; + + local_got_refcounts = hppa32_elf_local_refcounts (abfd); + if (local_got_refcounts == NULL) + return FALSE; + local_plt_refcounts = (local_got_refcounts + + symtab_hdr->sh_info); + local_plt_refcounts[r_symndx] += 1; + } + } + } + + if (need_entry & NEED_DYNREL) + { + /* Flag this symbol as having a non-got, non-plt reference + so that we generate copy relocs if it turns out to be + dynamic. */ + if (hh != NULL && !info->shared) + hh->eh.non_got_ref = 1; + + /* If we are creating a shared library then we need to copy + the reloc into the shared library. However, if we are + linking with -Bsymbolic, we need only copy absolute + relocs or relocs against symbols that are not defined in + an object we are including in the link. PC- or DP- or + DLT-relative relocs against any local sym or global sym + with DEF_REGULAR set, can be discarded. At this point we + have not seen all the input files, so it is possible that + DEF_REGULAR is not set now but will be set later (it is + never cleared). We account for that possibility below by + storing information in the dyn_relocs field of the + hash table entry. + + A similar situation to the -Bsymbolic case occurs when + creating shared libraries and symbol visibility changes + render the symbol local. + + As it turns out, all the relocs we will be creating here + are absolute, so we cannot remove them on -Bsymbolic + links or visibility changes anyway. A STUB_REL reloc + is absolute too, as in that case it is the reloc in the + stub we will be creating, rather than copying the PCREL + reloc in the branch. + + If on the other hand, we are creating an executable, we + may need to keep relocations for symbols satisfied by a + dynamic library if we manage to avoid copy relocs for the + symbol. */ + if ((info->shared + && (sec->flags & SEC_ALLOC) != 0 + && (IS_ABSOLUTE_RELOC (r_type) + || (hh != NULL + && (!info->symbolic + || hh->eh.root.type == bfd_link_hash_defweak + || !hh->eh.def_regular)))) + || (ELIMINATE_COPY_RELOCS + && !info->shared + && (sec->flags & SEC_ALLOC) != 0 + && hh != NULL + && (hh->eh.root.type == bfd_link_hash_defweak + || !hh->eh.def_regular))) + { + struct elf32_hppa_dyn_reloc_entry *hdh_p; + struct elf32_hppa_dyn_reloc_entry **hdh_head; + + /* Create a reloc section in dynobj and make room for + this reloc. */ + if (sreloc == NULL) + { + if (htab->etab.dynobj == NULL) + htab->etab.dynobj = abfd; + + sreloc = _bfd_elf_make_dynamic_reloc_section + (sec, htab->etab.dynobj, 2, abfd, /*rela?*/ TRUE); + + if (sreloc == NULL) + { + bfd_set_error (bfd_error_bad_value); + return FALSE; + } + } + + /* If this is a global symbol, we count the number of + relocations we need for this symbol. */ + if (hh != NULL) + { + hdh_head = &hh->dyn_relocs; + } + else + { + /* Track dynamic relocs needed for local syms too. + We really need local syms available to do this + easily. Oh well. */ + asection *sr; + void *vpp; + Elf_Internal_Sym *isym; + + isym = bfd_sym_from_r_symndx (&htab->sym_cache, + abfd, r_symndx); + if (isym == NULL) + return FALSE; + + sr = bfd_section_from_elf_index (abfd, isym->st_shndx); + if (sr == NULL) + sr = sec; + + vpp = &elf_section_data (sr)->local_dynrel; + hdh_head = (struct elf32_hppa_dyn_reloc_entry **) vpp; + } + + hdh_p = *hdh_head; + if (hdh_p == NULL || hdh_p->sec != sec) + { + hdh_p = bfd_alloc (htab->etab.dynobj, sizeof *hdh_p); + if (hdh_p == NULL) + return FALSE; + hdh_p->hdh_next = *hdh_head; + *hdh_head = hdh_p; + hdh_p->sec = sec; + hdh_p->count = 0; +#if RELATIVE_DYNRELOCS + hdh_p->relative_count = 0; +#endif + } + + hdh_p->count += 1; +#if RELATIVE_DYNRELOCS + if (!IS_ABSOLUTE_RELOC (rtype)) + hdh_p->relative_count += 1; +#endif + } + } + } + + return TRUE; +} + +/* Return the section that should be marked against garbage collection + for a given relocation. */ + +static asection * +elf32_hppa_gc_mark_hook (asection *sec, + struct bfd_link_info *info, + Elf_Internal_Rela *rela, + struct elf_link_hash_entry *hh, + Elf_Internal_Sym *sym) +{ + if (hh != NULL) + switch ((unsigned int) ELF32_R_TYPE (rela->r_info)) + { + case R_PARISC_GNU_VTINHERIT: + case R_PARISC_GNU_VTENTRY: + return NULL; + } + + return _bfd_elf_gc_mark_hook (sec, info, rela, hh, sym); +} + +/* Update the got and plt entry reference counts for the section being + removed. */ + +static bfd_boolean +elf32_hppa_gc_sweep_hook (bfd *abfd, + struct bfd_link_info *info ATTRIBUTE_UNUSED, + asection *sec, + const Elf_Internal_Rela *relocs) +{ + Elf_Internal_Shdr *symtab_hdr; + struct elf_link_hash_entry **eh_syms; + bfd_signed_vma *local_got_refcounts; + bfd_signed_vma *local_plt_refcounts; + const Elf_Internal_Rela *rela, *relend; + struct elf32_hppa_link_hash_table *htab; + + if (info->relocatable) + return TRUE; + + htab = hppa_link_hash_table (info); + if (htab == NULL) + return FALSE; + + elf_section_data (sec)->local_dynrel = NULL; + + symtab_hdr = &elf_tdata (abfd)->symtab_hdr; + eh_syms = elf_sym_hashes (abfd); + local_got_refcounts = elf_local_got_refcounts (abfd); + local_plt_refcounts = local_got_refcounts; + if (local_plt_refcounts != NULL) + local_plt_refcounts += symtab_hdr->sh_info; + + relend = relocs + sec->reloc_count; + for (rela = relocs; rela < relend; rela++) + { + unsigned long r_symndx; + unsigned int r_type; + struct elf_link_hash_entry *eh = NULL; + + r_symndx = ELF32_R_SYM (rela->r_info); + if (r_symndx >= symtab_hdr->sh_info) + { + struct elf32_hppa_link_hash_entry *hh; + struct elf32_hppa_dyn_reloc_entry **hdh_pp; + struct elf32_hppa_dyn_reloc_entry *hdh_p; + + eh = eh_syms[r_symndx - symtab_hdr->sh_info]; + while (eh->root.type == bfd_link_hash_indirect + || eh->root.type == bfd_link_hash_warning) + eh = (struct elf_link_hash_entry *) eh->root.u.i.link; + hh = hppa_elf_hash_entry (eh); + + for (hdh_pp = &hh->dyn_relocs; (hdh_p = *hdh_pp) != NULL; hdh_pp = &hdh_p->hdh_next) + if (hdh_p->sec == sec) + { + /* Everything must go for SEC. */ + *hdh_pp = hdh_p->hdh_next; + break; + } + } + + r_type = ELF32_R_TYPE (rela->r_info); + r_type = elf32_hppa_optimized_tls_reloc (info, r_type, eh != NULL); + + switch (r_type) + { + case R_PARISC_DLTIND14F: + case R_PARISC_DLTIND14R: + case R_PARISC_DLTIND21L: + case R_PARISC_TLS_GD21L: + case R_PARISC_TLS_GD14R: + case R_PARISC_TLS_IE21L: + case R_PARISC_TLS_IE14R: + if (eh != NULL) + { + if (eh->got.refcount > 0) + eh->got.refcount -= 1; + } + else if (local_got_refcounts != NULL) + { + if (local_got_refcounts[r_symndx] > 0) + local_got_refcounts[r_symndx] -= 1; + } + break; + + case R_PARISC_TLS_LDM21L: + case R_PARISC_TLS_LDM14R: + htab->tls_ldm_got.refcount -= 1; + break; + + case R_PARISC_PCREL12F: + case R_PARISC_PCREL17C: + case R_PARISC_PCREL17F: + case R_PARISC_PCREL22F: + if (eh != NULL) + { + if (eh->plt.refcount > 0) + eh->plt.refcount -= 1; + } + break; + + case R_PARISC_PLABEL14R: + case R_PARISC_PLABEL21L: + case R_PARISC_PLABEL32: + if (eh != NULL) + { + if (eh->plt.refcount > 0) + eh->plt.refcount -= 1; + } + else if (local_plt_refcounts != NULL) + { + if (local_plt_refcounts[r_symndx] > 0) + local_plt_refcounts[r_symndx] -= 1; + } + break; + + default: + break; + } + } + + return TRUE; +} + +/* Support for core dump NOTE sections. */ + +static bfd_boolean +elf32_hppa_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) +{ + int offset; + size_t size; + + switch (note->descsz) + { + default: + return FALSE; + + case 396: /* Linux/hppa */ + /* pr_cursig */ + elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12); + + /* pr_pid */ + elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24); + + /* pr_reg */ + offset = 72; + size = 320; + + break; + } + + /* Make a ".reg/999" section. */ + return _bfd_elfcore_make_pseudosection (abfd, ".reg", + size, note->descpos + offset); +} + +static bfd_boolean +elf32_hppa_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) +{ + switch (note->descsz) + { + default: + return FALSE; + + case 124: /* Linux/hppa elf_prpsinfo. */ + elf_tdata (abfd)->core->program + = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16); + elf_tdata (abfd)->core->command + = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80); + } + + /* Note that for some reason, a spurious space is tacked + onto the end of the args in some (at least one anyway) + implementations, so strip it off if it exists. */ + { + char *command = elf_tdata (abfd)->core->command; + int n = strlen (command); + + if (0 < n && command[n - 1] == ' ') + command[n - 1] = '\0'; + } + + return TRUE; +} + +/* Our own version of hide_symbol, so that we can keep plt entries for + plabels. */ + +static void +elf32_hppa_hide_symbol (struct bfd_link_info *info, + struct elf_link_hash_entry *eh, + bfd_boolean force_local) +{ + if (force_local) + { + eh->forced_local = 1; + if (eh->dynindx != -1) + { + eh->dynindx = -1; + _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, + eh->dynstr_index); + } + } + + /* STT_GNU_IFUNC symbol must go through PLT. */ + if (! hppa_elf_hash_entry (eh)->plabel + && eh->type != STT_GNU_IFUNC) + { + eh->needs_plt = 0; + eh->plt = elf_hash_table (info)->init_plt_offset; + } +} + +/* Adjust a symbol defined by a dynamic object and referenced by a + regular object. The current definition is in some section of the + dynamic object, but we're not including those sections. We have to + change the definition to something the rest of the link can + understand. */ + +static bfd_boolean +elf32_hppa_adjust_dynamic_symbol (struct bfd_link_info *info, + struct elf_link_hash_entry *eh) +{ + struct elf32_hppa_link_hash_table *htab; + asection *sec; + + /* If this is a function, put it in the procedure linkage table. We + will fill in the contents of the procedure linkage table later. */ + if (eh->type == STT_FUNC + || eh->needs_plt) + { + /* If the symbol is used by a plabel, we must allocate a PLT slot. + The refcounts are not reliable when it has been hidden since + hide_symbol can be called before the plabel flag is set. */ + if (hppa_elf_hash_entry (eh)->plabel + && eh->plt.refcount <= 0) + eh->plt.refcount = 1; + + if (eh->plt.refcount <= 0 + || (eh->def_regular + && eh->root.type != bfd_link_hash_defweak + && ! hppa_elf_hash_entry (eh)->plabel + && (!info->shared || info->symbolic))) + { + /* The .plt entry is not needed when: + a) Garbage collection has removed all references to the + symbol, or + b) We know for certain the symbol is defined in this + object, and it's not a weak definition, nor is the symbol + used by a plabel relocation. Either this object is the + application or we are doing a shared symbolic link. */ + + eh->plt.offset = (bfd_vma) -1; + eh->needs_plt = 0; + } + + return TRUE; + } + else + eh->plt.offset = (bfd_vma) -1; + + /* If this is a weak symbol, and there is a real definition, the + processor independent code will have arranged for us to see the + real definition first, and we can just use the same value. */ + if (eh->u.weakdef != NULL) + { + if (eh->u.weakdef->root.type != bfd_link_hash_defined + && eh->u.weakdef->root.type != bfd_link_hash_defweak) + abort (); + eh->root.u.def.section = eh->u.weakdef->root.u.def.section; + eh->root.u.def.value = eh->u.weakdef->root.u.def.value; + if (ELIMINATE_COPY_RELOCS) + eh->non_got_ref = eh->u.weakdef->non_got_ref; + return TRUE; + } + + /* This is a reference to a symbol defined by a dynamic object which + is not a function. */ + + /* If we are creating a shared library, we must presume that the + only references to the symbol are via the global offset table. + For such cases we need not do anything here; the relocations will + be handled correctly by relocate_section. */ + if (info->shared) + return TRUE; + + /* If there are no references to this symbol that do not use the + GOT, we don't need to generate a copy reloc. */ + if (!eh->non_got_ref) + return TRUE; + + if (ELIMINATE_COPY_RELOCS) + { + struct elf32_hppa_link_hash_entry *hh; + struct elf32_hppa_dyn_reloc_entry *hdh_p; + + hh = hppa_elf_hash_entry (eh); + for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next) + { + sec = hdh_p->sec->output_section; + if (sec != NULL && (sec->flags & SEC_READONLY) != 0) + break; + } + + /* If we didn't find any dynamic relocs in read-only sections, then + we'll be keeping the dynamic relocs and avoiding the copy reloc. */ + if (hdh_p == NULL) + { + eh->non_got_ref = 0; + return TRUE; + } + } + + /* We must allocate the symbol in our .dynbss section, which will + become part of the .bss section of the executable. There will be + an entry for this symbol in the .dynsym section. The dynamic + object will contain position independent code, so all references + from the dynamic object to this symbol will go through the global + offset table. The dynamic linker will use the .dynsym entry to + determine the address it must put in the global offset table, so + both the dynamic object and the regular object will refer to the + same memory location for the variable. */ + + htab = hppa_link_hash_table (info); + if (htab == NULL) + return FALSE; + + /* We must generate a COPY reloc to tell the dynamic linker to + copy the initial value out of the dynamic object and into the + runtime process image. */ + if ((eh->root.u.def.section->flags & SEC_ALLOC) != 0 && eh->size != 0) + { + htab->srelbss->size += sizeof (Elf32_External_Rela); + eh->needs_copy = 1; + } + + sec = htab->sdynbss; + + return _bfd_elf_adjust_dynamic_copy (eh, sec); +} + +/* Allocate space in the .plt for entries that won't have relocations. + ie. plabel entries. */ + +static bfd_boolean +allocate_plt_static (struct elf_link_hash_entry *eh, void *inf) +{ + struct bfd_link_info *info; + struct elf32_hppa_link_hash_table *htab; + struct elf32_hppa_link_hash_entry *hh; + asection *sec; + + if (eh->root.type == bfd_link_hash_indirect) + return TRUE; + + info = (struct bfd_link_info *) inf; + hh = hppa_elf_hash_entry (eh); + htab = hppa_link_hash_table (info); + if (htab == NULL) + return FALSE; + + if (htab->etab.dynamic_sections_created + && eh->plt.refcount > 0) + { + /* Make sure this symbol is output as a dynamic symbol. + Undefined weak syms won't yet be marked as dynamic. */ + if (eh->dynindx == -1 + && !eh->forced_local + && eh->type != STT_PARISC_MILLI) + { + if (! bfd_elf_link_record_dynamic_symbol (info, eh)) + return FALSE; + } + + if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, eh)) + { + /* Allocate these later. From this point on, h->plabel + means that the plt entry is only used by a plabel. + We'll be using a normal plt entry for this symbol, so + clear the plabel indicator. */ + + hh->plabel = 0; + } + else if (hh->plabel) + { + /* Make an entry in the .plt section for plabel references + that won't have a .plt entry for other reasons. */ + sec = htab->splt; + eh->plt.offset = sec->size; + sec->size += PLT_ENTRY_SIZE; + } + else + { + /* No .plt entry needed. */ + eh->plt.offset = (bfd_vma) -1; + eh->needs_plt = 0; + } + } + else + { + eh->plt.offset = (bfd_vma) -1; + eh->needs_plt = 0; + } + + return TRUE; +} + +/* Allocate space in .plt, .got and associated reloc sections for + global syms. */ + +static bfd_boolean +allocate_dynrelocs (struct elf_link_hash_entry *eh, void *inf) +{ + struct bfd_link_info *info; + struct elf32_hppa_link_hash_table *htab; + asection *sec; + struct elf32_hppa_link_hash_entry *hh; + struct elf32_hppa_dyn_reloc_entry *hdh_p; + + if (eh->root.type == bfd_link_hash_indirect) + return TRUE; + + info = inf; + htab = hppa_link_hash_table (info); + if (htab == NULL) + return FALSE; + + hh = hppa_elf_hash_entry (eh); + + if (htab->etab.dynamic_sections_created + && eh->plt.offset != (bfd_vma) -1 + && !hh->plabel + && eh->plt.refcount > 0) + { + /* Make an entry in the .plt section. */ + sec = htab->splt; + eh->plt.offset = sec->size; + sec->size += PLT_ENTRY_SIZE; + + /* We also need to make an entry in the .rela.plt section. */ + htab->srelplt->size += sizeof (Elf32_External_Rela); + htab->need_plt_stub = 1; + } + + if (eh->got.refcount > 0) + { + /* Make sure this symbol is output as a dynamic symbol. + Undefined weak syms won't yet be marked as dynamic. */ + if (eh->dynindx == -1 + && !eh->forced_local + && eh->type != STT_PARISC_MILLI) + { + if (! bfd_elf_link_record_dynamic_symbol (info, eh)) + return FALSE; + } + + sec = htab->sgot; + eh->got.offset = sec->size; + sec->size += GOT_ENTRY_SIZE; + /* R_PARISC_TLS_GD* needs two GOT entries */ + if ((hh->tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE)) + sec->size += GOT_ENTRY_SIZE * 2; + else if ((hh->tls_type & GOT_TLS_GD) == GOT_TLS_GD) + sec->size += GOT_ENTRY_SIZE; + if (htab->etab.dynamic_sections_created + && (info->shared + || (eh->dynindx != -1 + && !eh->forced_local))) + { + htab->srelgot->size += sizeof (Elf32_External_Rela); + if ((hh->tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE)) + htab->srelgot->size += 2 * sizeof (Elf32_External_Rela); + else if ((hh->tls_type & GOT_TLS_GD) == GOT_TLS_GD) + htab->srelgot->size += sizeof (Elf32_External_Rela); + } + } + else + eh->got.offset = (bfd_vma) -1; + + if (hh->dyn_relocs == NULL) + return TRUE; + + /* If this is a -Bsymbolic shared link, then we need to discard all + space allocated for dynamic pc-relative relocs against symbols + defined in a regular object. For the normal shared case, discard + space for relocs that have become local due to symbol visibility + changes. */ + if (info->shared) + { +#if RELATIVE_DYNRELOCS + if (SYMBOL_CALLS_LOCAL (info, eh)) + { + struct elf32_hppa_dyn_reloc_entry **hdh_pp; + + for (hdh_pp = &hh->dyn_relocs; (hdh_p = *hdh_pp) != NULL; ) + { + hdh_p->count -= hdh_p->relative_count; + hdh_p->relative_count = 0; + if (hdh_p->count == 0) + *hdh_pp = hdh_p->hdh_next; + else + hdh_pp = &hdh_p->hdh_next; + } + } +#endif + + /* Also discard relocs on undefined weak syms with non-default + visibility. */ + if (hh->dyn_relocs != NULL + && eh->root.type == bfd_link_hash_undefweak) + { + if (ELF_ST_VISIBILITY (eh->other) != STV_DEFAULT) + hh->dyn_relocs = NULL; + + /* Make sure undefined weak symbols are output as a dynamic + symbol in PIEs. */ + else if (eh->dynindx == -1 + && !eh->forced_local) + { + if (! bfd_elf_link_record_dynamic_symbol (info, eh)) + return FALSE; + } + } + } + else + { + /* For the non-shared case, discard space for relocs against + symbols which turn out to need copy relocs or are not + dynamic. */ + + if (!eh->non_got_ref + && ((ELIMINATE_COPY_RELOCS + && eh->def_dynamic + && !eh->def_regular) + || (htab->etab.dynamic_sections_created + && (eh->root.type == bfd_link_hash_undefweak + || eh->root.type == bfd_link_hash_undefined)))) + { + /* Make sure this symbol is output as a dynamic symbol. + Undefined weak syms won't yet be marked as dynamic. */ + if (eh->dynindx == -1 + && !eh->forced_local + && eh->type != STT_PARISC_MILLI) + { + if (! bfd_elf_link_record_dynamic_symbol (info, eh)) + return FALSE; + } + + /* If that succeeded, we know we'll be keeping all the + relocs. */ + if (eh->dynindx != -1) + goto keep; + } + + hh->dyn_relocs = NULL; + return TRUE; + + keep: ; + } + + /* Finally, allocate space. */ + for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next) + { + asection *sreloc = elf_section_data (hdh_p->sec)->sreloc; + sreloc->size += hdh_p->count * sizeof (Elf32_External_Rela); + } + + return TRUE; +} + +/* This function is called via elf_link_hash_traverse to force + millicode symbols local so they do not end up as globals in the + dynamic symbol table. We ought to be able to do this in + adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called + for all dynamic symbols. Arguably, this is a bug in + elf_adjust_dynamic_symbol. */ + +static bfd_boolean +clobber_millicode_symbols (struct elf_link_hash_entry *eh, + struct bfd_link_info *info) +{ + if (eh->type == STT_PARISC_MILLI + && !eh->forced_local) + { + elf32_hppa_hide_symbol (info, eh, TRUE); + } + return TRUE; +} + +/* Find any dynamic relocs that apply to read-only sections. */ + +static bfd_boolean +readonly_dynrelocs (struct elf_link_hash_entry *eh, void *inf) +{ + struct elf32_hppa_link_hash_entry *hh; + struct elf32_hppa_dyn_reloc_entry *hdh_p; + + hh = hppa_elf_hash_entry (eh); + for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next) + { + asection *sec = hdh_p->sec->output_section; + + if (sec != NULL && (sec->flags & SEC_READONLY) != 0) + { + struct bfd_link_info *info = inf; + + info->flags |= DF_TEXTREL; + + /* Not an error, just cut short the traversal. */ + return FALSE; + } + } + return TRUE; +} + +/* Set the sizes of the dynamic sections. */ + +static bfd_boolean +elf32_hppa_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, + struct bfd_link_info *info) +{ + struct elf32_hppa_link_hash_table *htab; + bfd *dynobj; + bfd *ibfd; + asection *sec; + bfd_boolean relocs; + + htab = hppa_link_hash_table (info); + if (htab == NULL) + return FALSE; + + dynobj = htab->etab.dynobj; + if (dynobj == NULL) + abort (); + + if (htab->etab.dynamic_sections_created) + { + /* Set the contents of the .interp section to the interpreter. */ + if (info->executable) + { + sec = bfd_get_linker_section (dynobj, ".interp"); + if (sec == NULL) + abort (); + sec->size = sizeof ELF_DYNAMIC_INTERPRETER; + sec->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; + } + + /* Force millicode symbols local. */ + elf_link_hash_traverse (&htab->etab, + clobber_millicode_symbols, + info); + } + + /* Set up .got and .plt offsets for local syms, and space for local + dynamic relocs. */ + for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) + { + bfd_signed_vma *local_got; + bfd_signed_vma *end_local_got; + bfd_signed_vma *local_plt; + bfd_signed_vma *end_local_plt; + bfd_size_type locsymcount; + Elf_Internal_Shdr *symtab_hdr; + asection *srel; + char *local_tls_type; + + if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) + continue; + + for (sec = ibfd->sections; sec != NULL; sec = sec->next) + { + struct elf32_hppa_dyn_reloc_entry *hdh_p; + + for (hdh_p = ((struct elf32_hppa_dyn_reloc_entry *) + elf_section_data (sec)->local_dynrel); + hdh_p != NULL; + hdh_p = hdh_p->hdh_next) + { + if (!bfd_is_abs_section (hdh_p->sec) + && bfd_is_abs_section (hdh_p->sec->output_section)) + { + /* Input section has been discarded, either because + it is a copy of a linkonce section or due to + linker script /DISCARD/, so we'll be discarding + the relocs too. */ + } + else if (hdh_p->count != 0) + { + srel = elf_section_data (hdh_p->sec)->sreloc; + srel->size += hdh_p->count * sizeof (Elf32_External_Rela); + if ((hdh_p->sec->output_section->flags & SEC_READONLY) != 0) + info->flags |= DF_TEXTREL; + } + } + } + + local_got = elf_local_got_refcounts (ibfd); + if (!local_got) + continue; + + symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; + locsymcount = symtab_hdr->sh_info; + end_local_got = local_got + locsymcount; + local_tls_type = hppa_elf_local_got_tls_type (ibfd); + sec = htab->sgot; + srel = htab->srelgot; + for (; local_got < end_local_got; ++local_got) + { + if (*local_got > 0) + { + *local_got = sec->size; + sec->size += GOT_ENTRY_SIZE; + if ((*local_tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE)) + sec->size += 2 * GOT_ENTRY_SIZE; + else if ((*local_tls_type & GOT_TLS_GD) == GOT_TLS_GD) + sec->size += GOT_ENTRY_SIZE; + if (info->shared) + { + srel->size += sizeof (Elf32_External_Rela); + if ((*local_tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE)) + srel->size += 2 * sizeof (Elf32_External_Rela); + else if ((*local_tls_type & GOT_TLS_GD) == GOT_TLS_GD) + srel->size += sizeof (Elf32_External_Rela); + } + } + else + *local_got = (bfd_vma) -1; + + ++local_tls_type; + } + + local_plt = end_local_got; + end_local_plt = local_plt + locsymcount; + if (! htab->etab.dynamic_sections_created) + { + /* Won't be used, but be safe. */ + for (; local_plt < end_local_plt; ++local_plt) + *local_plt = (bfd_vma) -1; + } + else + { + sec = htab->splt; + srel = htab->srelplt; + for (; local_plt < end_local_plt; ++local_plt) + { + if (*local_plt > 0) + { + *local_plt = sec->size; + sec->size += PLT_ENTRY_SIZE; + if (info->shared) + srel->size += sizeof (Elf32_External_Rela); + } + else + *local_plt = (bfd_vma) -1; + } + } + } + + if (htab->tls_ldm_got.refcount > 0) + { + /* Allocate 2 got entries and 1 dynamic reloc for + R_PARISC_TLS_DTPMOD32 relocs. */ + htab->tls_ldm_got.offset = htab->sgot->size; + htab->sgot->size += (GOT_ENTRY_SIZE * 2); + htab->srelgot->size += sizeof (Elf32_External_Rela); + } + else + htab->tls_ldm_got.offset = -1; + + /* Do all the .plt entries without relocs first. The dynamic linker + uses the last .plt reloc to find the end of the .plt (and hence + the start of the .got) for lazy linking. */ + elf_link_hash_traverse (&htab->etab, allocate_plt_static, info); + + /* Allocate global sym .plt and .got entries, and space for global + sym dynamic relocs. */ + elf_link_hash_traverse (&htab->etab, allocate_dynrelocs, info); + + /* The check_relocs and adjust_dynamic_symbol entry points have + determined the sizes of the various dynamic sections. Allocate + memory for them. */ + relocs = FALSE; + for (sec = dynobj->sections; sec != NULL; sec = sec->next) + { + if ((sec->flags & SEC_LINKER_CREATED) == 0) + continue; + + if (sec == htab->splt) + { + if (htab->need_plt_stub) + { + /* Make space for the plt stub at the end of the .plt + section. We want this stub right at the end, up + against the .got section. */ + int gotalign = bfd_section_alignment (dynobj, htab->sgot); + int pltalign = bfd_section_alignment (dynobj, sec); + bfd_size_type mask; + + if (gotalign > pltalign) + (void) bfd_set_section_alignment (dynobj, sec, gotalign); + mask = ((bfd_size_type) 1 << gotalign) - 1; + sec->size = (sec->size + sizeof (plt_stub) + mask) & ~mask; + } + } + else if (sec == htab->sgot + || sec == htab->sdynbss) + ; + else if (CONST_STRNEQ (bfd_get_section_name (dynobj, sec), ".rela")) + { + if (sec->size != 0) + { + /* Remember whether there are any reloc sections other + than .rela.plt. */ + if (sec != htab->srelplt) + relocs = TRUE; + + /* We use the reloc_count field as a counter if we need + to copy relocs into the output file. */ + sec->reloc_count = 0; + } + } + else + { + /* It's not one of our sections, so don't allocate space. */ + continue; + } + + if (sec->size == 0) + { + /* If we don't need this section, strip it from the + output file. This is mostly to handle .rela.bss and + .rela.plt. We must create both sections in + create_dynamic_sections, because they must be created + before the linker maps input sections to output + sections. The linker does that before + adjust_dynamic_symbol is called, and it is that + function which decides whether anything needs to go + into these sections. */ + sec->flags |= SEC_EXCLUDE; + continue; + } + + if ((sec->flags & SEC_HAS_CONTENTS) == 0) + continue; + + /* Allocate memory for the section contents. Zero it, because + we may not fill in all the reloc sections. */ + sec->contents = bfd_zalloc (dynobj, sec->size); + if (sec->contents == NULL) + return FALSE; + } + + if (htab->etab.dynamic_sections_created) + { + /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It + actually has nothing to do with the PLT, it is how we + communicate the LTP value of a load module to the dynamic + linker. */ +#define add_dynamic_entry(TAG, VAL) \ + _bfd_elf_add_dynamic_entry (info, TAG, VAL) + + if (!add_dynamic_entry (DT_PLTGOT, 0)) + return FALSE; + + /* Add some entries to the .dynamic section. We fill in the + values later, in elf32_hppa_finish_dynamic_sections, but we + must add the entries now so that we get the correct size for + the .dynamic section. The DT_DEBUG entry is filled in by the + dynamic linker and used by the debugger. */ + if (info->executable) + { + if (!add_dynamic_entry (DT_DEBUG, 0)) + return FALSE; + } + + if (htab->srelplt->size != 0) + { + if (!add_dynamic_entry (DT_PLTRELSZ, 0) + || !add_dynamic_entry (DT_PLTREL, DT_RELA) + || !add_dynamic_entry (DT_JMPREL, 0)) + return FALSE; + } + + if (relocs) + { + if (!add_dynamic_entry (DT_RELA, 0) + || !add_dynamic_entry (DT_RELASZ, 0) + || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela))) + return FALSE; + + /* If any dynamic relocs apply to a read-only section, + then we need a DT_TEXTREL entry. */ + if ((info->flags & DF_TEXTREL) == 0) + elf_link_hash_traverse (&htab->etab, readonly_dynrelocs, info); + + if ((info->flags & DF_TEXTREL) != 0) + { + if (!add_dynamic_entry (DT_TEXTREL, 0)) + return FALSE; + } + } + } +#undef add_dynamic_entry + + return TRUE; +} + +/* External entry points for sizing and building linker stubs. */ + +/* Set up various things so that we can make a list of input sections + for each output section included in the link. Returns -1 on error, + 0 when no stubs will be needed, and 1 on success. */ + +int +elf32_hppa_setup_section_lists (bfd *output_bfd, struct bfd_link_info *info) +{ + bfd *input_bfd; + unsigned int bfd_count; + int top_id, top_index; + asection *section; + asection **input_list, **list; + bfd_size_type amt; + struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info); + + if (htab == NULL) + return -1; + + /* Count the number of input BFDs and find the top input section id. */ + for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0; + input_bfd != NULL; + input_bfd = input_bfd->link_next) + { + bfd_count += 1; + for (section = input_bfd->sections; + section != NULL; + section = section->next) + { + if (top_id < section->id) + top_id = section->id; + } + } + htab->bfd_count = bfd_count; + + amt = sizeof (struct map_stub) * (top_id + 1); + htab->stub_group = bfd_zmalloc (amt); + if (htab->stub_group == NULL) + return -1; + + /* We can't use output_bfd->section_count here to find the top output + section index as some sections may have been removed, and + strip_excluded_output_sections doesn't renumber the indices. */ + for (section = output_bfd->sections, top_index = 0; + section != NULL; + section = section->next) + { + if (top_index < section->index) + top_index = section->index; + } + + htab->top_index = top_index; + amt = sizeof (asection *) * (top_index + 1); + input_list = bfd_malloc (amt); + htab->input_list = input_list; + if (input_list == NULL) + return -1; + + /* For sections we aren't interested in, mark their entries with a + value we can check later. */ + list = input_list + top_index; + do + *list = bfd_abs_section_ptr; + while (list-- != input_list); + + for (section = output_bfd->sections; + section != NULL; + section = section->next) + { + if ((section->flags & SEC_CODE) != 0) + input_list[section->index] = NULL; + } + + return 1; +} + +/* The linker repeatedly calls this function for each input section, + in the order that input sections are linked into output sections. + Build lists of input sections to determine groupings between which + we may insert linker stubs. */ + +void +elf32_hppa_next_input_section (struct bfd_link_info *info, asection *isec) +{ + struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info); + + if (htab == NULL) + return; + + if (isec->output_section->index <= htab->top_index) + { + asection **list = htab->input_list + isec->output_section->index; + if (*list != bfd_abs_section_ptr) + { + /* Steal the link_sec pointer for our list. */ +#define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec) + /* This happens to make the list in reverse order, + which is what we want. */ + PREV_SEC (isec) = *list; + *list = isec; + } + } +} + +/* See whether we can group stub sections together. Grouping stub + sections may result in fewer stubs. More importantly, we need to + put all .init* and .fini* stubs at the beginning of the .init or + .fini output sections respectively, because glibc splits the + _init and _fini functions into multiple parts. Putting a stub in + the middle of a function is not a good idea. */ + +static void +group_sections (struct elf32_hppa_link_hash_table *htab, + bfd_size_type stub_group_size, + bfd_boolean stubs_always_before_branch) +{ + asection **list = htab->input_list + htab->top_index; + do + { + asection *tail = *list; + if (tail == bfd_abs_section_ptr) + continue; + while (tail != NULL) + { + asection *curr; + asection *prev; + bfd_size_type total; + bfd_boolean big_sec; + + curr = tail; + total = tail->size; + big_sec = total >= stub_group_size; + + while ((prev = PREV_SEC (curr)) != NULL + && ((total += curr->output_offset - prev->output_offset) + < stub_group_size)) + curr = prev; + + /* OK, the size from the start of CURR to the end is less + than 240000 bytes and thus can be handled by one stub + section. (or the tail section is itself larger than + 240000 bytes, in which case we may be toast.) + We should really be keeping track of the total size of + stubs added here, as stubs contribute to the final output + section size. That's a little tricky, and this way will + only break if stubs added total more than 22144 bytes, or + 2768 long branch stubs. It seems unlikely for more than + 2768 different functions to be called, especially from + code only 240000 bytes long. This limit used to be + 250000, but c++ code tends to generate lots of little + functions, and sometimes violated the assumption. */ + do + { + prev = PREV_SEC (tail); + /* Set up this stub group. */ + htab->stub_group[tail->id].link_sec = curr; + } + while (tail != curr && (tail = prev) != NULL); + + /* But wait, there's more! Input sections up to 240000 + bytes before the stub section can be handled by it too. + Don't do this if we have a really large section after the + stubs, as adding more stubs increases the chance that + branches may not reach into the stub section. */ + if (!stubs_always_before_branch && !big_sec) + { + total = 0; + while (prev != NULL + && ((total += tail->output_offset - prev->output_offset) + < stub_group_size)) + { + tail = prev; + prev = PREV_SEC (tail); + htab->stub_group[tail->id].link_sec = curr; + } + } + tail = prev; + } + } + while (list-- != htab->input_list); + free (htab->input_list); +#undef PREV_SEC +} + +/* Read in all local syms for all input bfds, and create hash entries + for export stubs if we are building a multi-subspace shared lib. + Returns -1 on error, 1 if export stubs created, 0 otherwise. */ + +static int +get_local_syms (bfd *output_bfd, bfd *input_bfd, struct bfd_link_info *info) +{ + unsigned int bfd_indx; + Elf_Internal_Sym *local_syms, **all_local_syms; + int stub_changed = 0; + struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info); + + if (htab == NULL) + return -1; + + /* We want to read in symbol extension records only once. To do this + we need to read in the local symbols in parallel and save them for + later use; so hold pointers to the local symbols in an array. */ + bfd_size_type amt = sizeof (Elf_Internal_Sym *) * htab->bfd_count; + all_local_syms = bfd_zmalloc (amt); + htab->all_local_syms = all_local_syms; + if (all_local_syms == NULL) + return -1; + + /* Walk over all the input BFDs, swapping in local symbols. + If we are creating a shared library, create hash entries for the + export stubs. */ + for (bfd_indx = 0; + input_bfd != NULL; + input_bfd = input_bfd->link_next, bfd_indx++) + { + Elf_Internal_Shdr *symtab_hdr; + + /* We'll need the symbol table in a second. */ + symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; + if (symtab_hdr->sh_info == 0) + continue; + + /* We need an array of the local symbols attached to the input bfd. */ + local_syms = (Elf_Internal_Sym *) symtab_hdr->contents; + if (local_syms == NULL) + { + local_syms = bfd_elf_get_elf_syms (input_bfd, symtab_hdr, + symtab_hdr->sh_info, 0, + NULL, NULL, NULL); + /* Cache them for elf_link_input_bfd. */ + symtab_hdr->contents = (unsigned char *) local_syms; + } + if (local_syms == NULL) + return -1; + + all_local_syms[bfd_indx] = local_syms; + + if (info->shared && htab->multi_subspace) + { + struct elf_link_hash_entry **eh_syms; + struct elf_link_hash_entry **eh_symend; + unsigned int symcount; + + symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) + - symtab_hdr->sh_info); + eh_syms = (struct elf_link_hash_entry **) elf_sym_hashes (input_bfd); + eh_symend = (struct elf_link_hash_entry **) (eh_syms + symcount); + + /* Look through the global syms for functions; We need to + build export stubs for all globally visible functions. */ + for (; eh_syms < eh_symend; eh_syms++) + { + struct elf32_hppa_link_hash_entry *hh; + + hh = hppa_elf_hash_entry (*eh_syms); + + while (hh->eh.root.type == bfd_link_hash_indirect + || hh->eh.root.type == bfd_link_hash_warning) + hh = hppa_elf_hash_entry (hh->eh.root.u.i.link); + + /* At this point in the link, undefined syms have been + resolved, so we need to check that the symbol was + defined in this BFD. */ + if ((hh->eh.root.type == bfd_link_hash_defined + || hh->eh.root.type == bfd_link_hash_defweak) + && hh->eh.type == STT_FUNC + && hh->eh.root.u.def.section->output_section != NULL + && (hh->eh.root.u.def.section->output_section->owner + == output_bfd) + && hh->eh.root.u.def.section->owner == input_bfd + && hh->eh.def_regular + && !hh->eh.forced_local + && ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT) + { + asection *sec; + const char *stub_name; + struct elf32_hppa_stub_hash_entry *hsh; + + sec = hh->eh.root.u.def.section; + stub_name = hh_name (hh); + hsh = hppa_stub_hash_lookup (&htab->bstab, + stub_name, + FALSE, FALSE); + if (hsh == NULL) + { + hsh = hppa_add_stub (stub_name, sec, htab); + if (!hsh) + return -1; + + hsh->target_value = hh->eh.root.u.def.value; + hsh->target_section = hh->eh.root.u.def.section; + hsh->stub_type = hppa_stub_export; + hsh->hh = hh; + stub_changed = 1; + } + else + { + (*_bfd_error_handler) (_("%B: duplicate export stub %s"), + input_bfd, + stub_name); + } + } + } + } + } + + return stub_changed; +} + +/* Determine and set the size of the stub section for a final link. + + The basic idea here is to examine all the relocations looking for + PC-relative calls to a target that is unreachable with a "bl" + instruction. */ + +bfd_boolean +elf32_hppa_size_stubs + (bfd *output_bfd, bfd *stub_bfd, struct bfd_link_info *info, + bfd_boolean multi_subspace, bfd_signed_vma group_size, + asection * (*add_stub_section) (const char *, asection *), + void (*layout_sections_again) (void)) +{ + bfd_size_type stub_group_size; + bfd_boolean stubs_always_before_branch; + bfd_boolean stub_changed; + struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info); + + if (htab == NULL) + return FALSE; + + /* Stash our params away. */ + htab->stub_bfd = stub_bfd; + htab->multi_subspace = multi_subspace; + htab->add_stub_section = add_stub_section; + htab->layout_sections_again = layout_sections_again; + stubs_always_before_branch = group_size < 0; + if (group_size < 0) + stub_group_size = -group_size; + else + stub_group_size = group_size; + if (stub_group_size == 1) + { + /* Default values. */ + if (stubs_always_before_branch) + { + stub_group_size = 7680000; + if (htab->has_17bit_branch || htab->multi_subspace) + stub_group_size = 240000; + if (htab->has_12bit_branch) + stub_group_size = 7500; + } + else + { + stub_group_size = 6971392; + if (htab->has_17bit_branch || htab->multi_subspace) + stub_group_size = 217856; + if (htab->has_12bit_branch) + stub_group_size = 6808; + } + } + + group_sections (htab, stub_group_size, stubs_always_before_branch); + + switch (get_local_syms (output_bfd, info->input_bfds, info)) + { + default: + if (htab->all_local_syms) + goto error_ret_free_local; + return FALSE; + + case 0: + stub_changed = FALSE; + break; + + case 1: + stub_changed = TRUE; + break; + } + + while (1) + { + bfd *input_bfd; + unsigned int bfd_indx; + asection *stub_sec; + + for (input_bfd = info->input_bfds, bfd_indx = 0; + input_bfd != NULL; + input_bfd = input_bfd->link_next, bfd_indx++) + { + Elf_Internal_Shdr *symtab_hdr; + asection *section; + Elf_Internal_Sym *local_syms; + + /* We'll need the symbol table in a second. */ + symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; + if (symtab_hdr->sh_info == 0) + continue; + + local_syms = htab->all_local_syms[bfd_indx]; + + /* Walk over each section attached to the input bfd. */ + for (section = input_bfd->sections; + section != NULL; + section = section->next) + { + Elf_Internal_Rela *internal_relocs, *irelaend, *irela; + + /* If there aren't any relocs, then there's nothing more + to do. */ + if ((section->flags & SEC_RELOC) == 0 + || section->reloc_count == 0) + continue; + + /* If this section is a link-once section that will be + discarded, then don't create any stubs. */ + if (section->output_section == NULL + || section->output_section->owner != output_bfd) + continue; + + /* Get the relocs. */ + internal_relocs + = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL, + info->keep_memory); + if (internal_relocs == NULL) + goto error_ret_free_local; + + /* Now examine each relocation. */ + irela = internal_relocs; + irelaend = irela + section->reloc_count; + for (; irela < irelaend; irela++) + { + unsigned int r_type, r_indx; + enum elf32_hppa_stub_type stub_type; + struct elf32_hppa_stub_hash_entry *hsh; + asection *sym_sec; + bfd_vma sym_value; + bfd_vma destination; + struct elf32_hppa_link_hash_entry *hh; + char *stub_name; + const asection *id_sec; + + r_type = ELF32_R_TYPE (irela->r_info); + r_indx = ELF32_R_SYM (irela->r_info); + + if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED) + { + bfd_set_error (bfd_error_bad_value); + error_ret_free_internal: + if (elf_section_data (section)->relocs == NULL) + free (internal_relocs); + goto error_ret_free_local; + } + + /* Only look for stubs on call instructions. */ + if (r_type != (unsigned int) R_PARISC_PCREL12F + && r_type != (unsigned int) R_PARISC_PCREL17F + && r_type != (unsigned int) R_PARISC_PCREL22F) + continue; + + /* Now determine the call target, its name, value, + section. */ + sym_sec = NULL; + sym_value = 0; + destination = 0; + hh = NULL; + if (r_indx < symtab_hdr->sh_info) + { + /* It's a local symbol. */ + Elf_Internal_Sym *sym; + Elf_Internal_Shdr *hdr; + unsigned int shndx; + + sym = local_syms + r_indx; + if (ELF_ST_TYPE (sym->st_info) != STT_SECTION) + sym_value = sym->st_value; + shndx = sym->st_shndx; + if (shndx < elf_numsections (input_bfd)) + { + hdr = elf_elfsections (input_bfd)[shndx]; + sym_sec = hdr->bfd_section; + destination = (sym_value + irela->r_addend + + sym_sec->output_offset + + sym_sec->output_section->vma); + } + } + else + { + /* It's an external symbol. */ + int e_indx; + + e_indx = r_indx - symtab_hdr->sh_info; + hh = hppa_elf_hash_entry (elf_sym_hashes (input_bfd)[e_indx]); + + while (hh->eh.root.type == bfd_link_hash_indirect + || hh->eh.root.type == bfd_link_hash_warning) + hh = hppa_elf_hash_entry (hh->eh.root.u.i.link); + + if (hh->eh.root.type == bfd_link_hash_defined + || hh->eh.root.type == bfd_link_hash_defweak) + { + sym_sec = hh->eh.root.u.def.section; + sym_value = hh->eh.root.u.def.value; + if (sym_sec->output_section != NULL) + destination = (sym_value + irela->r_addend + + sym_sec->output_offset + + sym_sec->output_section->vma); + } + else if (hh->eh.root.type == bfd_link_hash_undefweak) + { + if (! info->shared) + continue; + } + else if (hh->eh.root.type == bfd_link_hash_undefined) + { + if (! (info->unresolved_syms_in_objects == RM_IGNORE + && (ELF_ST_VISIBILITY (hh->eh.other) + == STV_DEFAULT) + && hh->eh.type != STT_PARISC_MILLI)) + continue; + } + else + { + bfd_set_error (bfd_error_bad_value); + goto error_ret_free_internal; + } + } + + /* Determine what (if any) linker stub is needed. */ + stub_type = hppa_type_of_stub (section, irela, hh, + destination, info); + if (stub_type == hppa_stub_none) + continue; + + /* Support for grouping stub sections. */ + id_sec = htab->stub_group[section->id].link_sec; + + /* Get the name of this stub. */ + stub_name = hppa_stub_name (id_sec, sym_sec, hh, irela); + if (!stub_name) + goto error_ret_free_internal; + + hsh = hppa_stub_hash_lookup (&htab->bstab, + stub_name, + FALSE, FALSE); + if (hsh != NULL) + { + /* The proper stub has already been created. */ + free (stub_name); + continue; + } + + hsh = hppa_add_stub (stub_name, section, htab); + if (hsh == NULL) + { + free (stub_name); + goto error_ret_free_internal; + } + + hsh->target_value = sym_value; + hsh->target_section = sym_sec; + hsh->stub_type = stub_type; + if (info->shared) + { + if (stub_type == hppa_stub_import) + hsh->stub_type = hppa_stub_import_shared; + else if (stub_type == hppa_stub_long_branch) + hsh->stub_type = hppa_stub_long_branch_shared; + } + hsh->hh = hh; + stub_changed = TRUE; + } + + /* We're done with the internal relocs, free them. */ + if (elf_section_data (section)->relocs == NULL) + free (internal_relocs); + } + } + + if (!stub_changed) + break; + + /* OK, we've added some stubs. Find out the new size of the + stub sections. */ + for (stub_sec = htab->stub_bfd->sections; + stub_sec != NULL; + stub_sec = stub_sec->next) + stub_sec->size = 0; + + bfd_hash_traverse (&htab->bstab, hppa_size_one_stub, htab); + + /* Ask the linker to do its stuff. */ + (*htab->layout_sections_again) (); + stub_changed = FALSE; + } + + free (htab->all_local_syms); + return TRUE; + + error_ret_free_local: + free (htab->all_local_syms); + return FALSE; +} + +/* For a final link, this function is called after we have sized the + stubs to provide a value for __gp. */ + +bfd_boolean +elf32_hppa_set_gp (bfd *abfd, struct bfd_link_info *info) +{ + struct bfd_link_hash_entry *h; + asection *sec = NULL; + bfd_vma gp_val = 0; + struct elf32_hppa_link_hash_table *htab; + + htab = hppa_link_hash_table (info); + if (htab == NULL) + return FALSE; + + h = bfd_link_hash_lookup (&htab->etab.root, "$global$", FALSE, FALSE, FALSE); + + if (h != NULL + && (h->type == bfd_link_hash_defined + || h->type == bfd_link_hash_defweak)) + { + gp_val = h->u.def.value; + sec = h->u.def.section; + } + else + { + asection *splt = bfd_get_section_by_name (abfd, ".plt"); + asection *sgot = bfd_get_section_by_name (abfd, ".got"); + + /* Choose to point our LTP at, in this order, one of .plt, .got, + or .data, if these sections exist. In the case of choosing + .plt try to make the LTP ideal for addressing anywhere in the + .plt or .got with a 14 bit signed offset. Typically, the end + of the .plt is the start of the .got, so choose .plt + 0x2000 + if either the .plt or .got is larger than 0x2000. If both + the .plt and .got are smaller than 0x2000, choose the end of + the .plt section. */ + sec = strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0 + ? NULL : splt; + if (sec != NULL) + { + gp_val = sec->size; + if (gp_val > 0x2000 || (sgot && sgot->size > 0x2000)) + { + gp_val = 0x2000; + } + } + else + { + sec = sgot; + if (sec != NULL) + { + if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") != 0) + { + /* We know we don't have a .plt. If .got is large, + offset our LTP. */ + if (sec->size > 0x2000) + gp_val = 0x2000; + } + } + else + { + /* No .plt or .got. Who cares what the LTP is? */ + sec = bfd_get_section_by_name (abfd, ".data"); + } + } + + if (h != NULL) + { + h->type = bfd_link_hash_defined; + h->u.def.value = gp_val; + if (sec != NULL) + h->u.def.section = sec; + else + h->u.def.section = bfd_abs_section_ptr; + } + } + + if (sec != NULL && sec->output_section != NULL) + gp_val += sec->output_section->vma + sec->output_offset; + + elf_gp (abfd) = gp_val; + return TRUE; +} + +/* Build all the stubs associated with the current output file. The + stubs are kept in a hash table attached to the main linker hash + table. We also set up the .plt entries for statically linked PIC + functions here. This function is called via hppaelf_finish in the + linker. */ + +bfd_boolean +elf32_hppa_build_stubs (struct bfd_link_info *info) +{ + asection *stub_sec; + struct bfd_hash_table *table; + struct elf32_hppa_link_hash_table *htab; + + htab = hppa_link_hash_table (info); + if (htab == NULL) + return FALSE; + + for (stub_sec = htab->stub_bfd->sections; + stub_sec != NULL; + stub_sec = stub_sec->next) + { + bfd_size_type size; + + /* Allocate memory to hold the linker stubs. */ + size = stub_sec->size; + stub_sec->contents = bfd_zalloc (htab->stub_bfd, size); + if (stub_sec->contents == NULL && size != 0) + return FALSE; + stub_sec->size = 0; + } + + /* Build the stubs as directed by the stub hash table. */ + table = &htab->bstab; + bfd_hash_traverse (table, hppa_build_one_stub, info); + + return TRUE; +} + +/* Return the base vma address which should be subtracted from the real + address when resolving a dtpoff relocation. + This is PT_TLS segment p_vaddr. */ + +static bfd_vma +dtpoff_base (struct bfd_link_info *info) +{ + /* If tls_sec is NULL, we should have signalled an error already. */ + if (elf_hash_table (info)->tls_sec == NULL) + return 0; + return elf_hash_table (info)->tls_sec->vma; +} + +/* Return the relocation value for R_PARISC_TLS_TPOFF*.. */ + +static bfd_vma +tpoff (struct bfd_link_info *info, bfd_vma address) +{ + struct elf_link_hash_table *htab = elf_hash_table (info); + + /* If tls_sec is NULL, we should have signalled an error already. */ + if (htab->tls_sec == NULL) + return 0; + /* hppa TLS ABI is variant I and static TLS block start just after + tcbhead structure which has 2 pointer fields. */ + return (address - htab->tls_sec->vma + + align_power ((bfd_vma) 8, htab->tls_sec->alignment_power)); +} + +/* Perform a final link. */ + +static bfd_boolean +elf32_hppa_final_link (bfd *abfd, struct bfd_link_info *info) +{ + /* Invoke the regular ELF linker to do all the work. */ + if (!bfd_elf_final_link (abfd, info)) + return FALSE; + + /* If we're producing a final executable, sort the contents of the + unwind section. */ + if (info->relocatable) + return TRUE; + + return elf_hppa_sort_unwind (abfd); +} + +/* Record the lowest address for the data and text segments. */ + +static void +hppa_record_segment_addr (bfd *abfd, asection *section, void *data) +{ + struct elf32_hppa_link_hash_table *htab; + + htab = (struct elf32_hppa_link_hash_table*) data; + if (htab == NULL) + return; + + if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD)) + { + bfd_vma value; + Elf_Internal_Phdr *p; + + p = _bfd_elf_find_segment_containing_section (abfd, section->output_section); + BFD_ASSERT (p != NULL); + value = p->p_vaddr; + + if ((section->flags & SEC_READONLY) != 0) + { + if (value < htab->text_segment_base) + htab->text_segment_base = value; + } + else + { + if (value < htab->data_segment_base) + htab->data_segment_base = value; + } + } +} + +/* Perform a relocation as part of a final link. */ + +static bfd_reloc_status_type +final_link_relocate (asection *input_section, + bfd_byte *contents, + const Elf_Internal_Rela *rela, + bfd_vma value, + struct elf32_hppa_link_hash_table *htab, + asection *sym_sec, + struct elf32_hppa_link_hash_entry *hh, + struct bfd_link_info *info) +{ + int insn; + unsigned int r_type = ELF32_R_TYPE (rela->r_info); + unsigned int orig_r_type = r_type; + reloc_howto_type *howto = elf_hppa_howto_table + r_type; + int r_format = howto->bitsize; + enum hppa_reloc_field_selector_type_alt r_field; + bfd *input_bfd = input_section->owner; + bfd_vma offset = rela->r_offset; + bfd_vma max_branch_offset = 0; + bfd_byte *hit_data = contents + offset; + bfd_signed_vma addend = rela->r_addend; + bfd_vma location; + struct elf32_hppa_stub_hash_entry *hsh = NULL; + int val; + + if (r_type == R_PARISC_NONE) + return bfd_reloc_ok; + + insn = bfd_get_32 (input_bfd, hit_data); + + /* Find out where we are and where we're going. */ + location = (offset + + input_section->output_offset + + input_section->output_section->vma); + + /* If we are not building a shared library, convert DLTIND relocs to + DPREL relocs. */ + if (!info->shared) + { + switch (r_type) + { + case R_PARISC_DLTIND21L: + case R_PARISC_TLS_GD21L: + case R_PARISC_TLS_LDM21L: + case R_PARISC_TLS_IE21L: + r_type = R_PARISC_DPREL21L; + break; + + case R_PARISC_DLTIND14R: + case R_PARISC_TLS_GD14R: + case R_PARISC_TLS_LDM14R: + case R_PARISC_TLS_IE14R: + r_type = R_PARISC_DPREL14R; + break; + + case R_PARISC_DLTIND14F: + r_type = R_PARISC_DPREL14F; + break; + } + } + + switch (r_type) + { + case R_PARISC_PCREL12F: + case R_PARISC_PCREL17F: + case R_PARISC_PCREL22F: + /* If this call should go via the plt, find the import stub in + the stub hash. */ + if (sym_sec == NULL + || sym_sec->output_section == NULL + || (hh != NULL + && hh->eh.plt.offset != (bfd_vma) -1 + && hh->eh.dynindx != -1 + && !hh->plabel + && (info->shared + || !hh->eh.def_regular + || hh->eh.root.type == bfd_link_hash_defweak))) + { + hsh = hppa_get_stub_entry (input_section, sym_sec, + hh, rela, htab); + if (hsh != NULL) + { + value = (hsh->stub_offset + + hsh->stub_sec->output_offset + + hsh->stub_sec->output_section->vma); + addend = 0; + } + else if (sym_sec == NULL && hh != NULL + && hh->eh.root.type == bfd_link_hash_undefweak) + { + /* It's OK if undefined weak. Calls to undefined weak + symbols behave as if the "called" function + immediately returns. We can thus call to a weak + function without first checking whether the function + is defined. */ + value = location; + addend = 8; + } + else + return bfd_reloc_undefined; + } + /* Fall thru. */ + + case R_PARISC_PCREL21L: + case R_PARISC_PCREL17C: + case R_PARISC_PCREL17R: + case R_PARISC_PCREL14R: + case R_PARISC_PCREL14F: + case R_PARISC_PCREL32: + /* Make it a pc relative offset. */ + value -= location; + addend -= 8; + break; + + case R_PARISC_DPREL21L: + case R_PARISC_DPREL14R: + case R_PARISC_DPREL14F: + /* Convert instructions that use the linkage table pointer (r19) to + instructions that use the global data pointer (dp). This is the + most efficient way of using PIC code in an incomplete executable, + but the user must follow the standard runtime conventions for + accessing data for this to work. */ + if (orig_r_type != r_type) + { + if (r_type == R_PARISC_DPREL21L) + { + /* GCC sometimes uses a register other than r19 for the + operation, so we must convert any addil instruction + that uses this relocation. */ + if ((insn & 0xfc000000) == ((int) OP_ADDIL << 26)) + insn = ADDIL_DP; + else + /* We must have a ldil instruction. It's too hard to find + and convert the associated add instruction, so issue an + error. */ + (*_bfd_error_handler) + (_("%B(%A+0x%lx): %s fixup for insn 0x%x is not supported in a non-shared link"), + input_bfd, + input_section, + (long) offset, + howto->name, + insn); + } + else if (r_type == R_PARISC_DPREL14F) + { + /* This must be a format 1 load/store. Change the base + register to dp. */ + insn = (insn & 0xfc1ffff) | (27 << 21); + } + } + + /* For all the DP relative relocations, we need to examine the symbol's + section. If it has no section or if it's a code section, then + "data pointer relative" makes no sense. In that case we don't + adjust the "value", and for 21 bit addil instructions, we change the + source addend register from %dp to %r0. This situation commonly + arises for undefined weak symbols and when a variable's "constness" + is declared differently from the way the variable is defined. For + instance: "extern int foo" with foo defined as "const int foo". */ + if (sym_sec == NULL || (sym_sec->flags & SEC_CODE) != 0) + { + if ((insn & ((0x3f << 26) | (0x1f << 21))) + == (((int) OP_ADDIL << 26) | (27 << 21))) + { + insn &= ~ (0x1f << 21); + } + /* Now try to make things easy for the dynamic linker. */ + + break; + } + /* Fall thru. */ + + case R_PARISC_DLTIND21L: + case R_PARISC_DLTIND14R: + case R_PARISC_DLTIND14F: + case R_PARISC_TLS_GD21L: + case R_PARISC_TLS_LDM21L: + case R_PARISC_TLS_IE21L: + case R_PARISC_TLS_GD14R: + case R_PARISC_TLS_LDM14R: + case R_PARISC_TLS_IE14R: + value -= elf_gp (input_section->output_section->owner); + break; + + case R_PARISC_SEGREL32: + if ((sym_sec->flags & SEC_CODE) != 0) + value -= htab->text_segment_base; + else + value -= htab->data_segment_base; + break; + + default: + break; + } + + switch (r_type) + { + case R_PARISC_DIR32: + case R_PARISC_DIR14F: + case R_PARISC_DIR17F: + case R_PARISC_PCREL17C: + case R_PARISC_PCREL14F: + case R_PARISC_PCREL32: + case R_PARISC_DPREL14F: + case R_PARISC_PLABEL32: + case R_PARISC_DLTIND14F: + case R_PARISC_SEGBASE: + case R_PARISC_SEGREL32: + case R_PARISC_TLS_DTPMOD32: + case R_PARISC_TLS_DTPOFF32: + case R_PARISC_TLS_TPREL32: + r_field = e_fsel; + break; + + case R_PARISC_DLTIND21L: + case R_PARISC_PCREL21L: + case R_PARISC_PLABEL21L: + r_field = e_lsel; + break; + + case R_PARISC_DIR21L: + case R_PARISC_DPREL21L: + case R_PARISC_TLS_GD21L: + case R_PARISC_TLS_LDM21L: + case R_PARISC_TLS_LDO21L: + case R_PARISC_TLS_IE21L: + case R_PARISC_TLS_LE21L: + r_field = e_lrsel; + break; + + case R_PARISC_PCREL17R: + case R_PARISC_PCREL14R: + case R_PARISC_PLABEL14R: + case R_PARISC_DLTIND14R: + r_field = e_rsel; + break; + + case R_PARISC_DIR17R: + case R_PARISC_DIR14R: + case R_PARISC_DPREL14R: + case R_PARISC_TLS_GD14R: + case R_PARISC_TLS_LDM14R: + case R_PARISC_TLS_LDO14R: + case R_PARISC_TLS_IE14R: + case R_PARISC_TLS_LE14R: + r_field = e_rrsel; + break; + + case R_PARISC_PCREL12F: + case R_PARISC_PCREL17F: + case R_PARISC_PCREL22F: + r_field = e_fsel; + + if (r_type == (unsigned int) R_PARISC_PCREL17F) + { + max_branch_offset = (1 << (17-1)) << 2; + } + else if (r_type == (unsigned int) R_PARISC_PCREL12F) + { + max_branch_offset = (1 << (12-1)) << 2; + } + else + { + max_branch_offset = (1 << (22-1)) << 2; + } + + /* sym_sec is NULL on undefined weak syms or when shared on + undefined syms. We've already checked for a stub for the + shared undefined case. */ + if (sym_sec == NULL) + break; + + /* If the branch is out of reach, then redirect the + call to the local stub for this function. */ + if (value + addend + max_branch_offset >= 2*max_branch_offset) + { + hsh = hppa_get_stub_entry (input_section, sym_sec, + hh, rela, htab); + if (hsh == NULL) + return bfd_reloc_undefined; + + /* Munge up the value and addend so that we call the stub + rather than the procedure directly. */ + value = (hsh->stub_offset + + hsh->stub_sec->output_offset + + hsh->stub_sec->output_section->vma + - location); + addend = -8; + } + break; + + /* Something we don't know how to handle. */ + default: + return bfd_reloc_notsupported; + } + + /* Make sure we can reach the stub. */ + if (max_branch_offset != 0 + && value + addend + max_branch_offset >= 2*max_branch_offset) + { + (*_bfd_error_handler) + (_("%B(%A+0x%lx): cannot reach %s, recompile with -ffunction-sections"), + input_bfd, + input_section, + (long) offset, + hsh->bh_root.string); + bfd_set_error (bfd_error_bad_value); + return bfd_reloc_notsupported; + } + + val = hppa_field_adjust (value, addend, r_field); + + switch (r_type) + { + case R_PARISC_PCREL12F: + case R_PARISC_PCREL17C: + case R_PARISC_PCREL17F: + case R_PARISC_PCREL17R: + case R_PARISC_PCREL22F: + case R_PARISC_DIR17F: + case R_PARISC_DIR17R: + /* This is a branch. Divide the offset by four. + Note that we need to decide whether it's a branch or + otherwise by inspecting the reloc. Inspecting insn won't + work as insn might be from a .word directive. */ + val >>= 2; + break; + + default: + break; + } + + insn = hppa_rebuild_insn (insn, val, r_format); + + /* Update the instruction word. */ + bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data); + return bfd_reloc_ok; +} + +/* Relocate an HPPA ELF section. */ + +static bfd_boolean +elf32_hppa_relocate_section (bfd *output_bfd, + struct bfd_link_info *info, + bfd *input_bfd, + asection *input_section, + bfd_byte *contents, + Elf_Internal_Rela *relocs, + Elf_Internal_Sym *local_syms, + asection **local_sections) +{ + bfd_vma *local_got_offsets; + struct elf32_hppa_link_hash_table *htab; + Elf_Internal_Shdr *symtab_hdr; + Elf_Internal_Rela *rela; + Elf_Internal_Rela *relend; + + symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; + + htab = hppa_link_hash_table (info); + if (htab == NULL) + return FALSE; + + local_got_offsets = elf_local_got_offsets (input_bfd); + + rela = relocs; + relend = relocs + input_section->reloc_count; + for (; rela < relend; rela++) + { + unsigned int r_type; + reloc_howto_type *howto; + unsigned int r_symndx; + struct elf32_hppa_link_hash_entry *hh; + Elf_Internal_Sym *sym; + asection *sym_sec; + bfd_vma relocation; + bfd_reloc_status_type rstatus; + const char *sym_name; + bfd_boolean plabel; + bfd_boolean warned_undef; + + r_type = ELF32_R_TYPE (rela->r_info); + if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED) + { + bfd_set_error (bfd_error_bad_value); + return FALSE; + } + if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY + || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT) + continue; + + r_symndx = ELF32_R_SYM (rela->r_info); + hh = NULL; + sym = NULL; + sym_sec = NULL; + warned_undef = FALSE; + if (r_symndx < symtab_hdr->sh_info) + { + /* This is a local symbol, h defaults to NULL. */ + sym = local_syms + r_symndx; + sym_sec = local_sections[r_symndx]; + relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sym_sec, rela); + } + else + { + struct elf_link_hash_entry *eh; + bfd_boolean unresolved_reloc; + struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd); + + RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rela, + r_symndx, symtab_hdr, sym_hashes, + eh, sym_sec, relocation, + unresolved_reloc, warned_undef); + + if (!info->relocatable + && relocation == 0 + && eh->root.type != bfd_link_hash_defined + && eh->root.type != bfd_link_hash_defweak + && eh->root.type != bfd_link_hash_undefweak) + { + if (info->unresolved_syms_in_objects == RM_IGNORE + && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT + && eh->type == STT_PARISC_MILLI) + { + if (! info->callbacks->undefined_symbol + (info, eh_name (eh), input_bfd, + input_section, rela->r_offset, FALSE)) + return FALSE; + warned_undef = TRUE; + } + } + hh = hppa_elf_hash_entry (eh); + } + + if (sym_sec != NULL && discarded_section (sym_sec)) + RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, + rela, 1, relend, + elf_hppa_howto_table + r_type, 0, + contents); + + if (info->relocatable) + continue; + + /* Do any required modifications to the relocation value, and + determine what types of dynamic info we need to output, if + any. */ + plabel = 0; + switch (r_type) + { + case R_PARISC_DLTIND14F: + case R_PARISC_DLTIND14R: + case R_PARISC_DLTIND21L: + { + bfd_vma off; + bfd_boolean do_got = 0; + + /* Relocation is to the entry for this symbol in the + global offset table. */ + if (hh != NULL) + { + bfd_boolean dyn; + + off = hh->eh.got.offset; + dyn = htab->etab.dynamic_sections_created; + if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, + &hh->eh)) + { + /* If we aren't going to call finish_dynamic_symbol, + then we need to handle initialisation of the .got + entry and create needed relocs here. Since the + offset must always be a multiple of 4, we use the + least significant bit to record whether we have + initialised it already. */ + if ((off & 1) != 0) + off &= ~1; + else + { + hh->eh.got.offset |= 1; + do_got = 1; + } + } + } + else + { + /* Local symbol case. */ + if (local_got_offsets == NULL) + abort (); + + off = local_got_offsets[r_symndx]; + + /* The offset must always be a multiple of 4. We use + the least significant bit to record whether we have + already generated the necessary reloc. */ + if ((off & 1) != 0) + off &= ~1; + else + { + local_got_offsets[r_symndx] |= 1; + do_got = 1; + } + } + + if (do_got) + { + if (info->shared) + { + /* Output a dynamic relocation for this GOT entry. + In this case it is relative to the base of the + object because the symbol index is zero. */ + Elf_Internal_Rela outrel; + bfd_byte *loc; + asection *sec = htab->srelgot; + + outrel.r_offset = (off + + htab->sgot->output_offset + + htab->sgot->output_section->vma); + outrel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32); + outrel.r_addend = relocation; + loc = sec->contents; + loc += sec->reloc_count++ * sizeof (Elf32_External_Rela); + bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); + } + else + bfd_put_32 (output_bfd, relocation, + htab->sgot->contents + off); + } + + if (off >= (bfd_vma) -2) + abort (); + + /* Add the base of the GOT to the relocation value. */ + relocation = (off + + htab->sgot->output_offset + + htab->sgot->output_section->vma); + } + break; + + case R_PARISC_SEGREL32: + /* If this is the first SEGREL relocation, then initialize + the segment base values. */ + if (htab->text_segment_base == (bfd_vma) -1) + bfd_map_over_sections (output_bfd, hppa_record_segment_addr, htab); + break; + + case R_PARISC_PLABEL14R: + case R_PARISC_PLABEL21L: + case R_PARISC_PLABEL32: + if (htab->etab.dynamic_sections_created) + { + bfd_vma off; + bfd_boolean do_plt = 0; + /* If we have a global symbol with a PLT slot, then + redirect this relocation to it. */ + if (hh != NULL) + { + off = hh->eh.plt.offset; + if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, + &hh->eh)) + { + /* In a non-shared link, adjust_dynamic_symbols + isn't called for symbols forced local. We + need to write out the plt entry here. */ + if ((off & 1) != 0) + off &= ~1; + else + { + hh->eh.plt.offset |= 1; + do_plt = 1; + } + } + } + else + { + bfd_vma *local_plt_offsets; + + if (local_got_offsets == NULL) + abort (); + + local_plt_offsets = local_got_offsets + symtab_hdr->sh_info; + off = local_plt_offsets[r_symndx]; + + /* As for the local .got entry case, we use the last + bit to record whether we've already initialised + this local .plt entry. */ + if ((off & 1) != 0) + off &= ~1; + else + { + local_plt_offsets[r_symndx] |= 1; + do_plt = 1; + } + } + + if (do_plt) + { + if (info->shared) + { + /* Output a dynamic IPLT relocation for this + PLT entry. */ + Elf_Internal_Rela outrel; + bfd_byte *loc; + asection *s = htab->srelplt; + + outrel.r_offset = (off + + htab->splt->output_offset + + htab->splt->output_section->vma); + outrel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT); + outrel.r_addend = relocation; + loc = s->contents; + loc += s->reloc_count++ * sizeof (Elf32_External_Rela); + bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); + } + else + { + bfd_put_32 (output_bfd, + relocation, + htab->splt->contents + off); + bfd_put_32 (output_bfd, + elf_gp (htab->splt->output_section->owner), + htab->splt->contents + off + 4); + } + } + + if (off >= (bfd_vma) -2) + abort (); + + /* PLABELs contain function pointers. Relocation is to + the entry for the function in the .plt. The magic +2 + offset signals to $$dyncall that the function pointer + is in the .plt and thus has a gp pointer too. + Exception: Undefined PLABELs should have a value of + zero. */ + if (hh == NULL + || (hh->eh.root.type != bfd_link_hash_undefweak + && hh->eh.root.type != bfd_link_hash_undefined)) + { + relocation = (off + + htab->splt->output_offset + + htab->splt->output_section->vma + + 2); + } + plabel = 1; + } + /* Fall through and possibly emit a dynamic relocation. */ + + case R_PARISC_DIR17F: + case R_PARISC_DIR17R: + case R_PARISC_DIR14F: + case R_PARISC_DIR14R: + case R_PARISC_DIR21L: + case R_PARISC_DPREL14F: + case R_PARISC_DPREL14R: + case R_PARISC_DPREL21L: + case R_PARISC_DIR32: + if ((input_section->flags & SEC_ALLOC) == 0) + break; + + /* The reloc types handled here and this conditional + expression must match the code in ..check_relocs and + allocate_dynrelocs. ie. We need exactly the same condition + as in ..check_relocs, with some extra conditions (dynindx + test in this case) to cater for relocs removed by + allocate_dynrelocs. If you squint, the non-shared test + here does indeed match the one in ..check_relocs, the + difference being that here we test DEF_DYNAMIC as well as + !DEF_REGULAR. All common syms end up with !DEF_REGULAR, + which is why we can't use just that test here. + Conversely, DEF_DYNAMIC can't be used in check_relocs as + there all files have not been loaded. */ + if ((info->shared + && (hh == NULL + || ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT + || hh->eh.root.type != bfd_link_hash_undefweak) + && (IS_ABSOLUTE_RELOC (r_type) + || !SYMBOL_CALLS_LOCAL (info, &hh->eh))) + || (!info->shared + && hh != NULL + && hh->eh.dynindx != -1 + && !hh->eh.non_got_ref + && ((ELIMINATE_COPY_RELOCS + && hh->eh.def_dynamic + && !hh->eh.def_regular) + || hh->eh.root.type == bfd_link_hash_undefweak + || hh->eh.root.type == bfd_link_hash_undefined))) + { + Elf_Internal_Rela outrel; + bfd_boolean skip; + asection *sreloc; + bfd_byte *loc; + + /* When generating a shared object, these relocations + are copied into the output file to be resolved at run + time. */ + + outrel.r_addend = rela->r_addend; + outrel.r_offset = + _bfd_elf_section_offset (output_bfd, info, input_section, + rela->r_offset); + skip = (outrel.r_offset == (bfd_vma) -1 + || outrel.r_offset == (bfd_vma) -2); + outrel.r_offset += (input_section->output_offset + + input_section->output_section->vma); + + if (skip) + { + memset (&outrel, 0, sizeof (outrel)); + } + else if (hh != NULL + && hh->eh.dynindx != -1 + && (plabel + || !IS_ABSOLUTE_RELOC (r_type) + || !info->shared + || !info->symbolic + || !hh->eh.def_regular)) + { + outrel.r_info = ELF32_R_INFO (hh->eh.dynindx, r_type); + } + else /* It's a local symbol, or one marked to become local. */ + { + int indx = 0; + + /* Add the absolute offset of the symbol. */ + outrel.r_addend += relocation; + + /* Global plabels need to be processed by the + dynamic linker so that functions have at most one + fptr. For this reason, we need to differentiate + between global and local plabels, which we do by + providing the function symbol for a global plabel + reloc, and no symbol for local plabels. */ + if (! plabel + && sym_sec != NULL + && sym_sec->output_section != NULL + && ! bfd_is_abs_section (sym_sec)) + { + asection *osec; + + osec = sym_sec->output_section; + indx = elf_section_data (osec)->dynindx; + if (indx == 0) + { + osec = htab->etab.text_index_section; + indx = elf_section_data (osec)->dynindx; + } + BFD_ASSERT (indx != 0); + + /* We are turning this relocation into one + against a section symbol, so subtract out the + output section's address but not the offset + of the input section in the output section. */ + outrel.r_addend -= osec->vma; + } + + outrel.r_info = ELF32_R_INFO (indx, r_type); + } + sreloc = elf_section_data (input_section)->sreloc; + if (sreloc == NULL) + abort (); + + loc = sreloc->contents; + loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); + bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); + } + break; + + case R_PARISC_TLS_LDM21L: + case R_PARISC_TLS_LDM14R: + { + bfd_vma off; + + off = htab->tls_ldm_got.offset; + if (off & 1) + off &= ~1; + else + { + Elf_Internal_Rela outrel; + bfd_byte *loc; + + outrel.r_offset = (off + + htab->sgot->output_section->vma + + htab->sgot->output_offset); + outrel.r_addend = 0; + outrel.r_info = ELF32_R_INFO (0, R_PARISC_TLS_DTPMOD32); + loc = htab->srelgot->contents; + loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rela); + + bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); + htab->tls_ldm_got.offset |= 1; + } + + /* Add the base of the GOT to the relocation value. */ + relocation = (off + + htab->sgot->output_offset + + htab->sgot->output_section->vma); + + break; + } + + case R_PARISC_TLS_LDO21L: + case R_PARISC_TLS_LDO14R: + relocation -= dtpoff_base (info); + break; + + case R_PARISC_TLS_GD21L: + case R_PARISC_TLS_GD14R: + case R_PARISC_TLS_IE21L: + case R_PARISC_TLS_IE14R: + { + bfd_vma off; + int indx; + char tls_type; + + indx = 0; + if (hh != NULL) + { + bfd_boolean dyn; + dyn = htab->etab.dynamic_sections_created; + + if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, &hh->eh) + && (!info->shared + || !SYMBOL_REFERENCES_LOCAL (info, &hh->eh))) + { + indx = hh->eh.dynindx; + } + off = hh->eh.got.offset; + tls_type = hh->tls_type; + } + else + { + off = local_got_offsets[r_symndx]; + tls_type = hppa_elf_local_got_tls_type (input_bfd)[r_symndx]; + } + + if (tls_type == GOT_UNKNOWN) + abort (); + + if ((off & 1) != 0) + off &= ~1; + else + { + bfd_boolean need_relocs = FALSE; + Elf_Internal_Rela outrel; + bfd_byte *loc = NULL; + int cur_off = off; + + /* The GOT entries have not been initialized yet. Do it + now, and emit any relocations. If both an IE GOT and a + GD GOT are necessary, we emit the GD first. */ + + if ((info->shared || indx != 0) + && (hh == NULL + || ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT + || hh->eh.root.type != bfd_link_hash_undefweak)) + { + need_relocs = TRUE; + loc = htab->srelgot->contents; + /* FIXME (CAO): Should this be reloc_count++ ? */ + loc += htab->srelgot->reloc_count * sizeof (Elf32_External_Rela); + } + + if (tls_type & GOT_TLS_GD) + { + if (need_relocs) + { + outrel.r_offset = (cur_off + + htab->sgot->output_section->vma + + htab->sgot->output_offset); + outrel.r_info = ELF32_R_INFO (indx,R_PARISC_TLS_DTPMOD32); + outrel.r_addend = 0; + bfd_put_32 (output_bfd, 0, htab->sgot->contents + cur_off); + bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); + htab->srelgot->reloc_count++; + loc += sizeof (Elf32_External_Rela); + + if (indx == 0) + bfd_put_32 (output_bfd, relocation - dtpoff_base (info), + htab->sgot->contents + cur_off + 4); + else + { + bfd_put_32 (output_bfd, 0, + htab->sgot->contents + cur_off + 4); + outrel.r_info = ELF32_R_INFO (indx, R_PARISC_TLS_DTPOFF32); + outrel.r_offset += 4; + bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc); + htab->srelgot->reloc_count++; + loc += sizeof (Elf32_External_Rela); + } + } + else + { + /* If we are not emitting relocations for a + general dynamic reference, then we must be in a + static link or an executable link with the + symbol binding locally. Mark it as belonging + to module 1, the executable. */ + bfd_put_32 (output_bfd, 1, + htab->sgot->contents + cur_off); + bfd_put_32 (output_bfd, relocation - dtpoff_base (info), + htab->sgot->contents + cur_off + 4); + } + + + cur_off += 8; + } + + if (tls_type & GOT_TLS_IE) + { + if (need_relocs) + { + outrel.r_offset = (cur_off + + htab->sgot->output_section->vma + + htab->sgot->output_offset); + outrel.r_info = ELF32_R_INFO (indx, R_PARISC_TLS_TPREL32); + + if (indx == 0) + outrel.r_addend = relocation - dtpoff_base (info); + else + outrel.r_addend = 0; + + bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); + htab->srelgot->reloc_count++; + loc += sizeof (Elf32_External_Rela); + } + else + bfd_put_32 (output_bfd, tpoff (info, relocation), + htab->sgot->contents + cur_off); + + cur_off += 4; + } + + if (hh != NULL) + hh->eh.got.offset |= 1; + else + local_got_offsets[r_symndx] |= 1; + } + + if ((tls_type & GOT_TLS_GD) + && r_type != R_PARISC_TLS_GD21L + && r_type != R_PARISC_TLS_GD14R) + off += 2 * GOT_ENTRY_SIZE; + + /* Add the base of the GOT to the relocation value. */ + relocation = (off + + htab->sgot->output_offset + + htab->sgot->output_section->vma); + + break; + } + + case R_PARISC_TLS_LE21L: + case R_PARISC_TLS_LE14R: + { + relocation = tpoff (info, relocation); + break; + } + break; + + default: + break; + } + + rstatus = final_link_relocate (input_section, contents, rela, relocation, + htab, sym_sec, hh, info); + + if (rstatus == bfd_reloc_ok) + continue; + + if (hh != NULL) + sym_name = hh_name (hh); + else + { + sym_name = bfd_elf_string_from_elf_section (input_bfd, + symtab_hdr->sh_link, + sym->st_name); + if (sym_name == NULL) + return FALSE; + if (*sym_name == '\0') + sym_name = bfd_section_name (input_bfd, sym_sec); + } + + howto = elf_hppa_howto_table + r_type; + + if (rstatus == bfd_reloc_undefined || rstatus == bfd_reloc_notsupported) + { + if (rstatus == bfd_reloc_notsupported || !warned_undef) + { + (*_bfd_error_handler) + (_("%B(%A+0x%lx): cannot handle %s for %s"), + input_bfd, + input_section, + (long) rela->r_offset, + howto->name, + sym_name); + bfd_set_error (bfd_error_bad_value); + return FALSE; + } + } + else + { + if (!((*info->callbacks->reloc_overflow) + (info, (hh ? &hh->eh.root : NULL), sym_name, howto->name, + (bfd_vma) 0, input_bfd, input_section, rela->r_offset))) + return FALSE; + } + } + + return TRUE; +} + +/* Finish up dynamic symbol handling. We set the contents of various + dynamic sections here. */ + +static bfd_boolean +elf32_hppa_finish_dynamic_symbol (bfd *output_bfd, + struct bfd_link_info *info, + struct elf_link_hash_entry *eh, + Elf_Internal_Sym *sym) +{ + struct elf32_hppa_link_hash_table *htab; + Elf_Internal_Rela rela; + bfd_byte *loc; + + htab = hppa_link_hash_table (info); + if (htab == NULL) + return FALSE; + + if (eh->plt.offset != (bfd_vma) -1) + { + bfd_vma value; + + if (eh->plt.offset & 1) + abort (); + + /* This symbol has an entry in the procedure linkage table. Set + it up. + + The format of a plt entry is + <funcaddr> + <__gp> + */ + value = 0; + if (eh->root.type == bfd_link_hash_defined + || eh->root.type == bfd_link_hash_defweak) + { + value = eh->root.u.def.value; + if (eh->root.u.def.section->output_section != NULL) + value += (eh->root.u.def.section->output_offset + + eh->root.u.def.section->output_section->vma); + } + + /* Create a dynamic IPLT relocation for this entry. */ + rela.r_offset = (eh->plt.offset + + htab->splt->output_offset + + htab->splt->output_section->vma); + if (eh->dynindx != -1) + { + rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_IPLT); + rela.r_addend = 0; + } + else + { + /* This symbol has been marked to become local, and is + used by a plabel so must be kept in the .plt. */ + rela.r_info = ELF32_R_INFO (0, R_PARISC_IPLT); + rela.r_addend = value; + } + + loc = htab->srelplt->contents; + loc += htab->srelplt->reloc_count++ * sizeof (Elf32_External_Rela); + bfd_elf32_swap_reloca_out (htab->splt->output_section->owner, &rela, loc); + + if (!eh->def_regular) + { + /* Mark the symbol as undefined, rather than as defined in + the .plt section. Leave the value alone. */ + sym->st_shndx = SHN_UNDEF; + } + } + + if (eh->got.offset != (bfd_vma) -1 + && (hppa_elf_hash_entry (eh)->tls_type & GOT_TLS_GD) == 0 + && (hppa_elf_hash_entry (eh)->tls_type & GOT_TLS_IE) == 0) + { + /* This symbol has an entry in the global offset table. Set it + up. */ + + rela.r_offset = ((eh->got.offset &~ (bfd_vma) 1) + + htab->sgot->output_offset + + htab->sgot->output_section->vma); + + /* If this is a -Bsymbolic link and the symbol is defined + locally or was forced to be local because of a version file, + we just want to emit a RELATIVE reloc. The entry in the + global offset table will already have been initialized in the + relocate_section function. */ + if (info->shared + && (info->symbolic || eh->dynindx == -1) + && eh->def_regular) + { + rela.r_info = ELF32_R_INFO (0, R_PARISC_DIR32); + rela.r_addend = (eh->root.u.def.value + + eh->root.u.def.section->output_offset + + eh->root.u.def.section->output_section->vma); + } + else + { + if ((eh->got.offset & 1) != 0) + abort (); + + bfd_put_32 (output_bfd, 0, htab->sgot->contents + (eh->got.offset & ~1)); + rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_DIR32); + rela.r_addend = 0; + } + + loc = htab->srelgot->contents; + loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rela); + bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); + } + + if (eh->needs_copy) + { + asection *sec; + + /* This symbol needs a copy reloc. Set it up. */ + + if (! (eh->dynindx != -1 + && (eh->root.type == bfd_link_hash_defined + || eh->root.type == bfd_link_hash_defweak))) + abort (); + + sec = htab->srelbss; + + rela.r_offset = (eh->root.u.def.value + + eh->root.u.def.section->output_offset + + eh->root.u.def.section->output_section->vma); + rela.r_addend = 0; + rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_COPY); + loc = sec->contents + sec->reloc_count++ * sizeof (Elf32_External_Rela); + bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); + } + + /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */ + if (eh == htab->etab.hdynamic || eh == htab->etab.hgot) + { + sym->st_shndx = SHN_ABS; + } + + return TRUE; +} + +/* Used to decide how to sort relocs in an optimal manner for the + dynamic linker, before writing them out. */ + +static enum elf_reloc_type_class +elf32_hppa_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, + const asection *rel_sec ATTRIBUTE_UNUSED, + const Elf_Internal_Rela *rela) +{ + /* Handle TLS relocs first; we don't want them to be marked + relative by the "if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)" + check below. */ + switch ((int) ELF32_R_TYPE (rela->r_info)) + { + case R_PARISC_TLS_DTPMOD32: + case R_PARISC_TLS_DTPOFF32: + case R_PARISC_TLS_TPREL32: + return reloc_class_normal; + } + + if (ELF32_R_SYM (rela->r_info) == STN_UNDEF) + return reloc_class_relative; + + switch ((int) ELF32_R_TYPE (rela->r_info)) + { + case R_PARISC_IPLT: + return reloc_class_plt; + case R_PARISC_COPY: + return reloc_class_copy; + default: + return reloc_class_normal; + } +} + +/* Finish up the dynamic sections. */ + +static bfd_boolean +elf32_hppa_finish_dynamic_sections (bfd *output_bfd, + struct bfd_link_info *info) +{ + bfd *dynobj; + struct elf32_hppa_link_hash_table *htab; + asection *sdyn; + asection * sgot; + + htab = hppa_link_hash_table (info); + if (htab == NULL) + return FALSE; + + dynobj = htab->etab.dynobj; + + sgot = htab->sgot; + /* A broken linker script might have discarded the dynamic sections. + Catch this here so that we do not seg-fault later on. */ + if (sgot != NULL && bfd_is_abs_section (sgot->output_section)) + return FALSE; + + sdyn = bfd_get_linker_section (dynobj, ".dynamic"); + + if (htab->etab.dynamic_sections_created) + { + Elf32_External_Dyn *dyncon, *dynconend; + + if (sdyn == NULL) + abort (); + + dyncon = (Elf32_External_Dyn *) sdyn->contents; + dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); + for (; dyncon < dynconend; dyncon++) + { + Elf_Internal_Dyn dyn; + asection *s; + + bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); + + switch (dyn.d_tag) + { + default: + continue; + + case DT_PLTGOT: + /* Use PLTGOT to set the GOT register. */ + dyn.d_un.d_ptr = elf_gp (output_bfd); + break; + + case DT_JMPREL: + s = htab->srelplt; + dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; + break; + + case DT_PLTRELSZ: + s = htab->srelplt; + dyn.d_un.d_val = s->size; + break; + + case DT_RELASZ: + /* Don't count procedure linkage table relocs in the + overall reloc count. */ + s = htab->srelplt; + if (s == NULL) + continue; + dyn.d_un.d_val -= s->size; + break; + + case DT_RELA: + /* We may not be using the standard ELF linker script. + If .rela.plt is the first .rela section, we adjust + DT_RELA to not include it. */ + s = htab->srelplt; + if (s == NULL) + continue; + if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset) + continue; + dyn.d_un.d_ptr += s->size; + break; + } + + bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); + } + } + + if (sgot != NULL && sgot->size != 0) + { + /* Fill in the first entry in the global offset table. + We use it to point to our dynamic section, if we have one. */ + bfd_put_32 (output_bfd, + sdyn ? sdyn->output_section->vma + sdyn->output_offset : 0, + sgot->contents); + + /* The second entry is reserved for use by the dynamic linker. */ + memset (sgot->contents + GOT_ENTRY_SIZE, 0, GOT_ENTRY_SIZE); + + /* Set .got entry size. */ + elf_section_data (sgot->output_section) + ->this_hdr.sh_entsize = GOT_ENTRY_SIZE; + } + + if (htab->splt != NULL && htab->splt->size != 0) + { + /* Set plt entry size. */ + elf_section_data (htab->splt->output_section) + ->this_hdr.sh_entsize = PLT_ENTRY_SIZE; + + if (htab->need_plt_stub) + { + /* Set up the .plt stub. */ + memcpy (htab->splt->contents + + htab->splt->size - sizeof (plt_stub), + plt_stub, sizeof (plt_stub)); + + if ((htab->splt->output_offset + + htab->splt->output_section->vma + + htab->splt->size) + != (sgot->output_offset + + sgot->output_section->vma)) + { + (*_bfd_error_handler) + (_(".got section not immediately after .plt section")); + return FALSE; + } + } + } + + return TRUE; +} + +/* Called when writing out an object file to decide the type of a + symbol. */ +static int +elf32_hppa_elf_get_symbol_type (Elf_Internal_Sym *elf_sym, int type) +{ + if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI) + return STT_PARISC_MILLI; + else + return type; +} + +/* Misc BFD support code. */ +#define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name +#define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup +#define bfd_elf32_bfd_reloc_name_lookup elf_hppa_reloc_name_lookup +#define elf_info_to_howto elf_hppa_info_to_howto +#define elf_info_to_howto_rel elf_hppa_info_to_howto_rel + +/* Stuff for the BFD linker. */ +#define bfd_elf32_bfd_final_link elf32_hppa_final_link +#define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create +#define bfd_elf32_bfd_link_hash_table_free elf32_hppa_link_hash_table_free +#define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol +#define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol +#define elf_backend_check_relocs elf32_hppa_check_relocs +#define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections +#define elf_backend_fake_sections elf_hppa_fake_sections +#define elf_backend_relocate_section elf32_hppa_relocate_section +#define elf_backend_hide_symbol elf32_hppa_hide_symbol +#define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol +#define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections +#define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections +#define elf_backend_init_index_section _bfd_elf_init_1_index_section +#define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook +#define elf_backend_gc_sweep_hook elf32_hppa_gc_sweep_hook +#define elf_backend_grok_prstatus elf32_hppa_grok_prstatus +#define elf_backend_grok_psinfo elf32_hppa_grok_psinfo +#define elf_backend_object_p elf32_hppa_object_p +#define elf_backend_final_write_processing elf_hppa_final_write_processing +#define elf_backend_post_process_headers _bfd_elf_set_osabi +#define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type +#define elf_backend_reloc_type_class elf32_hppa_reloc_type_class +#define elf_backend_action_discarded elf_hppa_action_discarded + +#define elf_backend_can_gc_sections 1 +#define elf_backend_can_refcount 1 +#define elf_backend_plt_alignment 2 +#define elf_backend_want_got_plt 0 +#define elf_backend_plt_readonly 0 +#define elf_backend_want_plt_sym 0 +#define elf_backend_got_header_size 8 +#define elf_backend_rela_normal 1 + +#define TARGET_BIG_SYM bfd_elf32_hppa_vec +#define TARGET_BIG_NAME "elf32-hppa" +#define ELF_ARCH bfd_arch_hppa +#define ELF_TARGET_ID HPPA32_ELF_DATA +#define ELF_MACHINE_CODE EM_PARISC +#define ELF_MAXPAGESIZE 0x1000 +#define ELF_OSABI ELFOSABI_HPUX +#define elf32_bed elf32_hppa_hpux_bed + +#include "elf32-target.h" + +#undef TARGET_BIG_SYM +#define TARGET_BIG_SYM bfd_elf32_hppa_linux_vec +#undef TARGET_BIG_NAME +#define TARGET_BIG_NAME "elf32-hppa-linux" +#undef ELF_OSABI +#define ELF_OSABI ELFOSABI_GNU +#undef elf32_bed +#define elf32_bed elf32_hppa_linux_bed + +#include "elf32-target.h" + +#undef TARGET_BIG_SYM +#define TARGET_BIG_SYM bfd_elf32_hppa_nbsd_vec +#undef TARGET_BIG_NAME +#define TARGET_BIG_NAME "elf32-hppa-netbsd" +#undef ELF_OSABI +#define ELF_OSABI ELFOSABI_NETBSD +#undef elf32_bed +#define elf32_bed elf32_hppa_netbsd_bed + +#include "elf32-target.h" |