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-rw-r--r--binutils-2.25/bfd/nlm32-sparc.c379
1 files changed, 379 insertions, 0 deletions
diff --git a/binutils-2.25/bfd/nlm32-sparc.c b/binutils-2.25/bfd/nlm32-sparc.c
new file mode 100644
index 00000000..ba60e440
--- /dev/null
+++ b/binutils-2.25/bfd/nlm32-sparc.c
@@ -0,0 +1,379 @@
+/* Support for 32-bit SPARC NLM (NetWare Loadable Module)
+ Copyright 1993, 1994, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+ 2007, 2009, 2010 Free Software Foundation, Inc.
+
+ 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"
+
+#define ARCH_SIZE 32
+
+#include "nlm/sparc32-ext.h"
+#define Nlm_External_Fixed_Header Nlm32_sparc_External_Fixed_Header
+
+#include "libnlm.h"
+
+enum reloc_type
+{
+ R_SPARC_NONE = 0,
+ R_SPARC_8, R_SPARC_16, R_SPARC_32,
+ R_SPARC_DISP8, R_SPARC_DISP16, R_SPARC_DISP32,
+ R_SPARC_WDISP30, R_SPARC_WDISP22,
+ R_SPARC_HI22, R_SPARC_22,
+ R_SPARC_13, R_SPARC_LO10,
+ R_SPARC_GOT10, R_SPARC_GOT13, R_SPARC_GOT22,
+ R_SPARC_PC10, R_SPARC_PC22,
+ R_SPARC_WPLT30,
+ R_SPARC_COPY,
+ R_SPARC_GLOB_DAT, R_SPARC_JMP_SLOT,
+ R_SPARC_RELATIVE,
+ R_SPARC_UA32,
+ R_SPARC_max
+};
+
+static reloc_howto_type nlm32_sparc_howto_table[] =
+{
+ HOWTO (R_SPARC_NONE, 0,0, 0,FALSE,0,complain_overflow_dont, 0,"R_SPARC_NONE", FALSE,0,0x00000000,TRUE),
+ HOWTO (R_SPARC_8, 0,0, 8,FALSE,0,complain_overflow_bitfield,0,"R_SPARC_8", FALSE,0,0x000000ff,TRUE),
+ HOWTO (R_SPARC_16, 0,1,16,FALSE,0,complain_overflow_bitfield,0,"R_SPARC_16", FALSE,0,0x0000ffff,TRUE),
+ HOWTO (R_SPARC_32, 0,2,32,FALSE,0,complain_overflow_bitfield,0,"R_SPARC_32", FALSE,0,0xffffffff,TRUE),
+ HOWTO (R_SPARC_DISP8, 0,0, 8,TRUE, 0,complain_overflow_signed, 0,"R_SPARC_DISP8", FALSE,0,0x000000ff,TRUE),
+ HOWTO (R_SPARC_DISP16, 0,1,16,TRUE, 0,complain_overflow_signed, 0,"R_SPARC_DISP16", FALSE,0,0x0000ffff,TRUE),
+ HOWTO (R_SPARC_DISP32, 0,2,32,TRUE, 0,complain_overflow_signed, 0,"R_SPARC_DISP32", FALSE,0,0x00ffffff,TRUE),
+ HOWTO (R_SPARC_WDISP30, 2,2,30,TRUE, 0,complain_overflow_signed, 0,"R_SPARC_WDISP30", FALSE,0,0x3fffffff,TRUE),
+ HOWTO (R_SPARC_WDISP22, 2,2,22,TRUE, 0,complain_overflow_signed, 0,"R_SPARC_WDISP22", FALSE,0,0x003fffff,TRUE),
+ HOWTO (R_SPARC_HI22, 10,2,22,FALSE,0,complain_overflow_dont, 0,"R_SPARC_HI22", FALSE,0,0x003fffff,TRUE),
+ HOWTO (R_SPARC_22, 0,2,22,FALSE,0,complain_overflow_bitfield,0,"R_SPARC_22", FALSE,0,0x003fffff,TRUE),
+ HOWTO (R_SPARC_13, 0,2,13,FALSE,0,complain_overflow_bitfield,0,"R_SPARC_13", FALSE,0,0x00001fff,TRUE),
+ HOWTO (R_SPARC_LO10, 0,2,10,FALSE,0,complain_overflow_dont, 0,"R_SPARC_LO10", FALSE,0,0x000003ff,TRUE),
+ HOWTO (R_SPARC_GOT10, 0,2,10,FALSE,0,complain_overflow_bitfield,0,"R_SPARC_GOT10", FALSE,0,0x000003ff,TRUE),
+ HOWTO (R_SPARC_GOT13, 0,2,13,FALSE,0,complain_overflow_bitfield,0,"R_SPARC_GOT13", FALSE,0,0x00001fff,TRUE),
+ HOWTO (R_SPARC_GOT22, 10,2,22,FALSE,0,complain_overflow_bitfield,0,"R_SPARC_GOT22", FALSE,0,0x003fffff,TRUE),
+ HOWTO (R_SPARC_PC10, 0,2,10,FALSE,0,complain_overflow_bitfield,0,"R_SPARC_PC10", FALSE,0,0x000003ff,TRUE),
+ HOWTO (R_SPARC_PC22, 0,2,22,FALSE,0,complain_overflow_bitfield,0,"R_SPARC_PC22", FALSE,0,0x003fffff,TRUE),
+ HOWTO (R_SPARC_WPLT30, 0,0,00,FALSE,0,complain_overflow_dont, 0,"R_SPARC_WPLT30", FALSE,0,0x00000000,TRUE),
+ HOWTO (R_SPARC_COPY, 0,0,00,FALSE,0,complain_overflow_dont, 0,"R_SPARC_COPY", FALSE,0,0x00000000,TRUE),
+ HOWTO (R_SPARC_GLOB_DAT,0,0,00,FALSE,0,complain_overflow_dont, 0,"R_SPARC_GLOB_DAT",FALSE,0,0x00000000,TRUE),
+ HOWTO (R_SPARC_JMP_SLOT,0,0,00,FALSE,0,complain_overflow_dont, 0,"R_SPARC_JMP_SLOT",FALSE,0,0x00000000,TRUE),
+ HOWTO (R_SPARC_RELATIVE,0,0,00,FALSE,0,complain_overflow_dont, 0,"R_SPARC_RELATIVE",FALSE,0,0x00000000,TRUE),
+ HOWTO (R_SPARC_UA32, 0,0,00,FALSE,0,complain_overflow_dont, 0,"R_SPARC_UA32", FALSE,0,0x00000000,TRUE),
+};
+
+/* Read a NetWare sparc reloc. */
+
+struct nlm32_sparc_reloc_ext
+{
+ unsigned char offset[4];
+ unsigned char addend[4];
+ unsigned char type[1];
+ unsigned char pad1[3];
+};
+
+static bfd_boolean
+nlm_sparc_read_reloc (bfd *abfd,
+ nlmNAME (symbol_type) *sym ATTRIBUTE_UNUSED,
+ asection **secp,
+ arelent *rel)
+{
+ bfd_vma val, addend;
+ unsigned int howto_index;
+ unsigned int type;
+ struct nlm32_sparc_reloc_ext tmp_reloc;
+ asection *code_sec;
+
+ if (bfd_bread (&tmp_reloc, (bfd_size_type) 12, abfd) != 12)
+ return FALSE;
+
+ code_sec = bfd_get_section_by_name (abfd, NLM_CODE_NAME);
+ *secp = code_sec;
+
+ val = bfd_get_32 (abfd, tmp_reloc.offset);
+ addend = bfd_get_32 (abfd, tmp_reloc.addend);
+ type = bfd_get_8 (abfd, tmp_reloc.type);
+
+ rel->address = val;
+ rel->addend = addend;
+ rel->howto = NULL;
+
+ for (howto_index = 0;
+ howto_index < sizeof (nlm32_sparc_howto_table) / sizeof (reloc_howto_type);
+ howto_index++)
+ if (nlm32_sparc_howto_table[howto_index].type == type)
+ {
+ rel->howto = &nlm32_sparc_howto_table[howto_index];
+ break;
+ }
+
+#ifdef DEBUG
+ fprintf (stderr, "%s: address = %08lx, addend = %08lx, type = %u, howto = %p\n",
+ __FUNCTION__, (unsigned long) rel->address,
+ (unsigned long) rel->addend, type, rel->howto);
+#endif
+ return TRUE;
+
+}
+
+/* Write a NetWare sparc reloc. */
+
+static bfd_boolean
+nlm_sparc_write_reloc (bfd * abfd, asection * sec, arelent * rel)
+{
+ bfd_vma val;
+ struct nlm32_sparc_reloc_ext tmp_reloc;
+ unsigned int howto_index;
+ int type = -1;
+ reloc_howto_type *tmp;
+
+ for (howto_index = 0;
+ howto_index < sizeof (nlm32_sparc_howto_table) / sizeof (reloc_howto_type);
+ howto_index++)
+ {
+ tmp = &nlm32_sparc_howto_table[howto_index];
+
+ if (tmp->rightshift == rel->howto->rightshift
+ && tmp->size == rel->howto->size
+ && tmp->bitsize == rel->howto->bitsize
+ && tmp->pc_relative == rel->howto->pc_relative
+ && tmp->bitpos == rel->howto->bitpos
+ && tmp->src_mask == rel->howto->src_mask
+ && tmp->dst_mask == rel->howto->dst_mask)
+ {
+ type = tmp->type;
+ break;
+ }
+ }
+ if (type == -1)
+ abort ();
+
+ /* Netware wants a list of relocs for each address.
+ Format is:
+ long offset
+ long addend
+ char type
+ That should be it. */
+
+ /* The value we write out is the offset into the appropriate
+ segment. This offset is the section vma, adjusted by the vma of
+ the lowest section in that segment, plus the address of the
+ relocation. */
+ val = bfd_get_section_vma (abfd, sec) + rel->address;
+
+#ifdef DEBUG
+ fprintf (stderr, "%s: val = %08lx, addend = %08lx, type = %u\n",
+ __FUNCTION__, (unsigned long) val, (unsigned long) rel->addend,
+ rel->howto->type);
+#endif
+ bfd_put_32 (abfd, val, tmp_reloc.offset);
+ bfd_put_32 (abfd, rel->addend, tmp_reloc.addend);
+ bfd_put_8 (abfd, (short) (rel->howto->type), tmp_reloc.type);
+
+ if (bfd_bwrite (&tmp_reloc, (bfd_size_type) 12, abfd) != 12)
+ return FALSE;
+
+ return TRUE;
+}
+
+/* Mangle relocs for SPARC NetWare. We can just use the standard
+ SPARC relocs. */
+
+static bfd_boolean
+nlm_sparc_mangle_relocs (bfd *abfd ATTRIBUTE_UNUSED,
+ asection *sec ATTRIBUTE_UNUSED,
+ const void * data ATTRIBUTE_UNUSED,
+ bfd_vma offset ATTRIBUTE_UNUSED,
+ bfd_size_type count ATTRIBUTE_UNUSED)
+{
+ return TRUE;
+}
+
+/* Read a NetWare sparc import record. */
+
+static bfd_boolean
+nlm_sparc_read_import (bfd *abfd, nlmNAME (symbol_type) *sym)
+{
+ struct nlm_relent *nlm_relocs; /* Relocation records for symbol. */
+ bfd_size_type rcount; /* Number of relocs. */
+ bfd_byte temp[NLM_TARGET_LONG_SIZE]; /* Temporary 32-bit value. */
+ unsigned char symlength; /* Length of symbol name. */
+ char *name;
+
+ /* First, read in the number of relocation
+ entries for this symbol. */
+ if (bfd_bread (temp, (bfd_size_type) 4, abfd) != 4)
+ return FALSE;
+
+ rcount = bfd_get_32 (abfd, temp);
+
+ /* Next, read in the length of the symbol. */
+ if (bfd_bread (& symlength, (bfd_size_type) sizeof (symlength), abfd)
+ != sizeof (symlength))
+ return FALSE;
+ sym -> symbol.the_bfd = abfd;
+ name = bfd_alloc (abfd, (bfd_size_type) symlength + 1);
+ if (name == NULL)
+ return FALSE;
+
+ /* Then read in the symbol. */
+ if (bfd_bread (name, (bfd_size_type) symlength, abfd) != symlength)
+ return FALSE;
+ name[symlength] = '\0';
+ sym -> symbol.name = name;
+ sym -> symbol.flags = 0;
+ sym -> symbol.value = 0;
+ sym -> symbol.section = bfd_und_section_ptr;
+
+ /* Next, start reading in the relocs. */
+ nlm_relocs = bfd_alloc (abfd, rcount * sizeof (struct nlm_relent));
+ if (!nlm_relocs)
+ return FALSE;
+ sym -> relocs = nlm_relocs;
+ sym -> rcnt = 0;
+ while (sym -> rcnt < rcount)
+ {
+ asection *section;
+
+ if (! nlm_sparc_read_reloc (abfd, sym, &section, &nlm_relocs -> reloc))
+ return FALSE;
+ nlm_relocs -> section = section;
+ nlm_relocs++;
+ sym -> rcnt++;
+ }
+
+ return TRUE;
+}
+
+static bfd_boolean
+nlm_sparc_write_import (bfd * abfd, asection * sec, arelent * rel)
+{
+ char temp[4];
+ asection *code, *data, *bss, *symsec;
+ bfd_vma base;
+
+ code = bfd_get_section_by_name (abfd, NLM_CODE_NAME);
+ data = bfd_get_section_by_name (abfd, NLM_INITIALIZED_DATA_NAME);
+ bss = bfd_get_section_by_name (abfd, NLM_UNINITIALIZED_DATA_NAME);
+ symsec = (*rel->sym_ptr_ptr)->section;
+
+ if (symsec == code)
+ base = 0;
+ else if (symsec == data)
+ base = code->size;
+ else if (symsec == bss)
+ base = code->size + data->size;
+ else
+ base = 0;
+
+#ifdef DEBUG
+ fprintf (stderr, "%s: <%lx, 1>\n\t",
+ __FUNCTION__, (unsigned long) (base + (*rel->sym_ptr_ptr)->value));
+#endif
+ bfd_put_32 (abfd, base + (*rel->sym_ptr_ptr)->value, temp);
+ if (bfd_bwrite (temp, (bfd_size_type) 4, abfd) != 4)
+ return FALSE;
+ bfd_put_32 (abfd, (bfd_vma) 1, temp);
+ if (bfd_bwrite (temp, (bfd_size_type) 4, abfd) != 4)
+ return FALSE;
+ if (! nlm_sparc_write_reloc (abfd, sec, rel))
+ return FALSE;
+ return TRUE;
+}
+
+/* Write out an external reference. */
+
+static bfd_boolean
+nlm_sparc_write_external (bfd *abfd,
+ bfd_size_type count,
+ asymbol *sym,
+ struct reloc_and_sec *relocs)
+{
+ unsigned int i;
+ bfd_byte len;
+ unsigned char temp[NLM_TARGET_LONG_SIZE];
+
+ bfd_put_32 (abfd, count, temp);
+ if (bfd_bwrite (temp, (bfd_size_type) sizeof (temp), abfd) != sizeof (temp))
+ return FALSE;
+
+ len = strlen (sym->name);
+ if ((bfd_bwrite (&len, (bfd_size_type) sizeof (bfd_byte), abfd)
+ != sizeof (bfd_byte))
+ || bfd_bwrite (sym->name, (bfd_size_type) len, abfd) != len)
+ return FALSE;
+
+ for (i = 0; i < count; i++)
+ if (! nlm_sparc_write_reloc (abfd, relocs[i].sec, relocs[i].rel))
+ return FALSE;
+
+ return TRUE;
+}
+
+static bfd_boolean
+nlm_sparc_write_export (bfd * abfd, asymbol * sym, bfd_vma value)
+{
+ bfd_byte len;
+ bfd_byte temp[4];
+
+#ifdef DEBUG
+ fprintf (stderr, "%s: <%lx, %u, %s>\n",
+ __FUNCTION__, (unsigned long) value, strlen (sym->name), sym->name);
+#endif
+ bfd_put_32 (abfd, value, temp);
+ len = strlen (sym->name);
+
+ if (bfd_bwrite (temp, (bfd_size_type) 4, abfd) != 4
+ || bfd_bwrite (&len, (bfd_size_type) 1, abfd) != 1
+ || bfd_bwrite (sym->name, (bfd_size_type) len, abfd) != len)
+ return FALSE;
+
+ return TRUE;
+}
+
+#undef nlm_swap_fixed_header_in
+#undef nlm_swap_fixed_header_out
+
+#include "nlmswap.h"
+
+static const struct nlm_backend_data nlm32_sparc_backend =
+{
+ "NetWare SPARC Module \032",
+ sizeof (Nlm32_sparc_External_Fixed_Header),
+ 0, /* Optional_prefix_size. */
+ bfd_arch_sparc,
+ 0,
+ FALSE,
+ 0, /* Backend_object_p. */
+ 0, /* Write_prefix_func. */
+ nlm_sparc_read_reloc,
+ nlm_sparc_mangle_relocs,
+ nlm_sparc_read_import,
+ nlm_sparc_write_import,
+ 0, /* Set_public_section. */
+ 0, /* Get_public_offset. */
+ nlm_swap_fixed_header_in,
+ nlm_swap_fixed_header_out,
+ nlm_sparc_write_external,
+ nlm_sparc_write_export
+};
+
+#define TARGET_BIG_NAME "nlm32-sparc"
+#define TARGET_BIG_SYM nlmNAME (sparc_vec)
+#define TARGET_BACKEND_DATA & nlm32_sparc_backend
+
+#include "nlm-target.h"
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-23 22:58:15 +0000