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-rw-r--r--bfd/nlm32-sparc.c440
1 files changed, 440 insertions, 0 deletions
diff --git a/bfd/nlm32-sparc.c b/bfd/nlm32-sparc.c
new file mode 100644
index 00000000000..5963adbc70b
--- /dev/null
+++ b/bfd/nlm32-sparc.c
@@ -0,0 +1,440 @@
+/* Support for 32-bit SPARC NLM (NetWare Loadable Module)
+ Copyright (C) 1993 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 2 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+#include "bfd.h"
+#include "sysdep.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"
+
+static boolean nlm_sparc_read_reloc
+ PARAMS ((bfd *, nlmNAME(symbol_type) *, asection **, arelent *));
+static boolean nlm_sparc_write_reloc
+ PARAMS ((bfd *, asection *, arelent *));
+static boolean nlm_sparc_mangle_relocs
+ PARAMS ((bfd *, asection *, PTR, bfd_vma, bfd_size_type));
+static boolean nlm_sparc_read_import
+ PARAMS ((bfd *, nlmNAME(symbol_type) *));
+static boolean nlm_sparc_write_import
+ PARAMS ((bfd *, asection *, arelent *));
+static boolean nlm_sparc_write_external
+ PARAMS ((bfd *, bfd_size_type, asymbol *, struct reloc_and_sec *));
+
+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
+ };
+
+#if 0
+static CONST char *CONST reloc_type_names[] =
+{
+ "R_SPARC_NONE",
+ "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",
+};
+#endif
+
+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 boolean
+nlm_sparc_read_reloc (abfd, sym, secp, rel)
+ bfd *abfd;
+ nlmNAME(symbol_type) *sym;
+ asection **secp;
+ arelent *rel;
+{
+ bfd_vma val, addend;
+ unsigned int index;
+ unsigned int type;
+ struct nlm32_sparc_reloc_ext tmp_reloc;
+ asection *code_sec, *data_sec;
+
+ if (bfd_read (&tmp_reloc, 12, 1, abfd) != 12)
+ return false;
+
+ code_sec = bfd_get_section_by_name (abfd, NLM_CODE_NAME);
+ data_sec = bfd_get_section_by_name (abfd, NLM_INITIALIZED_DATA_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 (index = 0;
+ index < sizeof(nlm32_sparc_howto_table) / sizeof(reloc_howto_type);
+ index++)
+ if (nlm32_sparc_howto_table[index].type == type) {
+ rel->howto = &nlm32_sparc_howto_table[index];
+ break;
+ }
+
+#ifdef DEBUG
+ fprintf (stderr, "%s: address = %08lx, addend = %08lx, type = %d, howto = %08lx\n",
+ __FUNCTION__, rel->address, rel->addend, type, rel->howto);
+#endif
+ return true;
+
+}
+
+/* Write a NetWare sparc reloc. */
+
+static boolean
+nlm_sparc_write_reloc (abfd, sec, rel)
+ bfd *abfd;
+ asection *sec;
+ arelent *rel;
+{
+ bfd_vma val;
+ struct nlm32_sparc_reloc_ext tmp_reloc;
+ unsigned int index;
+ int type = -1;
+ reloc_howto_type *tmp;
+
+
+ for (index = 0;
+ index < sizeof (nlm32_sparc_howto_table) / sizeof(reloc_howto_type);
+ index++) {
+ tmp = &nlm32_sparc_howto_table[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. */
+#if 0
+ val = bfd_get_section_vma (abfd, (*rel->sym_ptr_ptr)->section) + rel->address;
+#else
+ val = bfd_get_section_vma (abfd, sec) + rel->address;
+#endif
+
+#ifdef DEBUG
+ fprintf (stderr, "%s: val = %08lx, addend = %08lx, type = %d\n",
+ __FUNCTION__, val, 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_write (&tmp_reloc, 12, 1, abfd) != 12)
+ return false;
+
+ return true;
+}
+
+/* Mangle relocs for SPARC NetWare. We can just use the standard
+ SPARC relocs. */
+
+static boolean
+nlm_sparc_mangle_relocs (abfd, sec, data, offset, count)
+ bfd *abfd;
+ asection *sec;
+ PTR data;
+ bfd_vma offset;
+ bfd_size_type count;
+{
+ return true;
+}
+
+/* Read a NetWare sparc import record */
+static boolean
+nlm_sparc_read_import (abfd, sym)
+ 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_read ((PTR) temp, 4, 1, abfd) != 4)
+ return false;
+
+ rcount = bfd_get_32 (abfd, temp);
+
+ /*
+ * Next, read in the length of the symbol
+ */
+
+ if (bfd_read ((PTR) &symlength, sizeof (symlength), 1, abfd)
+ != sizeof (symlength))
+ return false;
+ sym -> symbol.the_bfd = abfd;
+ name = bfd_alloc (abfd, symlength + 1);
+ if (name == NULL)
+ return false;
+
+ /*
+ * Then read in the symbol
+ */
+
+ if (bfd_read (name, symlength, 1, 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 = ((struct nlm_relent *)
+ 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)
+ == false)
+ return false;
+ nlm_relocs -> section = section;
+ nlm_relocs++;
+ sym -> rcnt++;
+ }
+ return true;
+}
+
+static boolean
+nlm_sparc_write_import (abfd, sec, rel)
+ 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 = bfd_section_size (abfd, code);
+ } else if (symsec == bss) {
+ base = bfd_section_size (abfd, code) + bfd_section_size (abfd, data);
+ } else
+ base = 0;
+
+#ifdef DEBUG
+ fprintf (stderr, "%s: <%x, 1>\n\t",
+ __FUNCTION__, base + (*rel->sym_ptr_ptr)->value);
+#endif
+ bfd_put_32 (abfd, base + (*rel->sym_ptr_ptr)->value, temp);
+ if (bfd_write ((PTR)temp, 4, 1, abfd) != 4)
+ return false;
+ bfd_put_32 (abfd, 1, temp);
+ if (bfd_write ((PTR)temp, 4, 1, abfd) != 4)
+ return false;
+ if (nlm_sparc_write_reloc (abfd, sec, rel) == false)
+ return false;
+ return true;
+}
+
+/* Write out an external reference. */
+
+static boolean
+nlm_sparc_write_external (abfd, count, sym, relocs)
+ 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_write (temp, sizeof(temp), 1, abfd) != sizeof (temp))
+ return false;
+
+ len = strlen (sym->name);
+ if ((bfd_write (&len, sizeof (bfd_byte), 1, abfd) != sizeof(bfd_byte))
+ || bfd_write (sym->name, len, 1, abfd) != len)
+ return false;
+
+ for (i = 0; i < count; i++)
+ {
+ if (nlm_sparc_write_reloc (abfd, relocs[i].sec,
+ relocs[i].rel) == false)
+ return false;
+ }
+
+ return true;
+}
+
+static boolean
+nlm_sparc_write_export (abfd, sym, value)
+ bfd *abfd;
+ asymbol *sym;
+ bfd_vma value;
+{
+ bfd_byte len;
+ bfd_byte temp[4];
+
+#ifdef DEBUG
+ fprintf (stderr, "%s: <%x, %d, %s>\n",
+ __FUNCTION__, value, strlen (sym->name), sym->name);
+#endif
+ bfd_put_32 (abfd, value, temp);
+ len = strlen (sym->name);
+
+ if (bfd_write (temp, 4, 1, abfd) != 4
+ || bfd_write (&len, 1, 1, abfd) != 1
+ || bfd_write (sym->name, len, 1, 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"
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