Merged in changes from Jeff Law and Pete Hoogenboom at Utah for PA ELF

support.  Compiles, not particularly well tested.  See ChangeLog for details.

6 files changed, 175 insertions, 4 deletions

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index f231446..b961cb8 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,109 @@
+Tue Aug 24 16:32:35 1993  Ken Raeburn  (raeburn@cambridge.cygnus.com)
+
+	Merged changes from Jeff Law and Pete Hoogenboom at Utah:
+
+	* elfcode.h (elf_section_from_bfd_section): Add detection of
+	SHT_NOTE sections.
+
+	* elf32-hppa.c:
+	(hppa_elf_build_long_branch_stub,hppa_elf_long_branch_needed_p):
+	New functions for support of long branch stubs.
+	(hppa_elf_stub_check,hppa_look_for_stubs_in_section):  Add
+	check for long branch stubs.
+	(hppa_look_for_stubs):  Unused function.  Removed.
+	(hppa_elf_set_section_contents): Implement a PA/ELF-specific
+	version of bfd_set_section_contents.
+	(hppa_elf_long_branch_needed_p): Only output debugging diagnostics
+	when BFD is configured for debugging.
+
+	* elf32-hppa.c: (elf32_hppa_get_symextn_chain):  New function
+	to return a list of symbols that have non-zero argument
+	relocation bits.
+	(hppa_elf_stub_finish): Make sure stub generation is done only
+	once.
+
+	* elf32-hppa.c: (hppa_elf_stub_reloc):  New function for
+	generation relocation entries within a stub.
+	(hppa_elf_build_arg_reloc_stub): Corrections to argument
+	relocation stubs.
+
+	* elf32-hppa.c: New #define's for argument relocation types.
+	(mismatches, retval_mismatches): Updated to reflect new
+	argument relocation types.
+	(CURRENT_STUB_OFFSET): New macro.
+
+	* elfcode.h (map_program_segments): Set the PF_X bit for data
+	segments.
+
+	* elf32-hppa.c: (elf_hppa_howto_table): Add
+	R_HPPA_STUB_CALL_17 for support of linker stub generation.
+	(hppa_elf_reloc): Add support of R_HPPA_STUB_CALL_17
+	relocation type.
+
+	* elf32-hppa.h: (elf32_hppa_reloc_type): Add
+	R_HPPA_STUB_CALL_17 for support of linker stub generation.
+
+	* hppa_stubs.h: Add new instructions that are used in linker
+	stub generation.
+
+	* elf32-hppa.c (hppa_elf_relocate_unwind_table): The offsets in an
+	unwind descriptor were incorrect.
+
+	* libelf.h (bfd_elf_find_section): Declare.
+
+	* elf32-hppa.c: (elf32_hppa_backend_symbol_processing):  New
+	function in place of global_sym field in elf_backend_data
+	structure.
+	(elf32_hppa_backend_symbol_table_processing,
+	elf32_hppa_backend_section_processing,
+	elf32_hppa_backend_fake_sections,
+	elf32_hppa_backend_section_from_shdr,
+	elf32_hppa_backend_section_from_bfd_section):  New functions to
+	provide support of symbol extension sections and argument
+	relocation stubs.
+	(elf_info_to_howto):  Remove call to abort().
+
+	* elf32-target.h:  Support for special processing by the backend.
+	(struct elf_backend_data):  Added elf_backend_symbol_processing,
+	elf_backend_symbol_table_processing,
+	elf_backend_section_processing, elf_backend_section_from_shdr,
+	elf_backend_fake_sections, and
+	elf_backend_section_from_bfd_section fields.
+	* elfcode.h: (bfd_section_from_shdr): Add a check for
+	processor-specific section types.
+	(elf_fake_sections):  Add a check for processor-specific
+	section types.
+	(bfd_elf32_write_object_contents):  Add a check to see if
+	there is any final section processing to be done by the
+	backend.
+	(elf_section_from_bfd_section):  Add a check for
+	processor-specific section types.
+	(elf_slurp_symbol_table):  Remove reference to global_sym in the
+	elf_backend_data structure.  Replace it with a call to
+	elf_backend_symbol_processing.
+	* libelf.h: Remove global_sym field in the elf_backend_data
+	structure.  Replace it with a series of backend-specific
+	functions.
+
+	* elf32-hppa.c (hppa_elf_stub_branch_reloc): The formal argument
+	stub_sym should be called target_sym.
+	(hppa_elf_build_arg_reloc_stub): Refer to the stub bfd (abfd)
+	rather than the output bfd (output_bfd).
+	(hppa_elf_reloc): Get rid of references to the global_sym field in
+	the elf_backend_data structure.
+
+	* elfcode.h (elf_fake_sections): Check the correct condition for
+	.bss.  Also, detect the existence of a .note section.
+
+	* elf32-hppa.c (hppa_elf_relocate_insn): r_format argument should
+	have been r_field.
+
+	* hosts/hppabsd.h (HOST_MACHINE_ARCH): Reference to bfd_arch_m68k
+	should be a reference to bfd_arch_hppa.
+
+	* hppa.c (hppa_vec): Replace bfd_false with _bfd_dummy_target in
+	the bfd_check_format structure to avoid a type mismatch.
+
 Mon Aug 23 1993  Sean Fagan  (sef@cygnus.com)
 		 and Jim Kingdon  (kingdon@cygnus.com)
 
diff --git a/bfd/elf32-target.h b/bfd/elf32-target.h
index abc406f..27bad81 100644
--- a/bfd/elf32-target.h
+++ b/bfd/elf32-target.h
@@ -59,6 +59,25 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
 #define ELF_MAXPAGESIZE 1
 #endif
 
+#ifndef elf_backend_symbol_processing
+#define elf_backend_symbol_processing	0	/* elf_backend_symbol_processing */
+#endif
+#ifndef elf_backend_symbol_table_processing
+#define elf_backend_symbol_table_processing	0	/* elf_backend_symbol_table_processing */
+#endif
+#ifndef elf_backend_section_processing
+#define elf_backend_section_processing	0	/* elf_backend_section_processing */
+#endif
+#ifndef elf_backend_section_from_shdr
+#define elf_backend_section_from_shdr	0	/* elf_backend_section_from_shdr */
+#endif
+#ifndef elf_backend_fake_sections
+#define elf_backend_fake_sections	0	/* elf_backend_fake_sections */
+#endif
+#ifndef elf_backend_section_from_bfd_section
+#define elf_backend_section_from_bfd_section	0	/* elf_backend_section_from_bfd_section */
+#endif
+
 static CONST struct elf_backend_data elf32_bed =
 {
 #ifdef USE_REL
@@ -72,6 +91,12 @@ static CONST struct elf_backend_data elf32_bed =
   elf_info_to_howto_rel,	/* elf_info_to_howto_rel */
   ELF_MAXPAGESIZE,		/* maxpagesize */
   bfd_elf32__write_relocs,	/* write_relocs */
+  elf_backend_symbol_processing,	/* elf_backend_symbol_processing */
+  elf_backend_symbol_table_processing,	/* elf_backend_symbol_table_processing */
+  elf_backend_section_processing,	/* elf_backend_section_processing */
+  elf_backend_section_from_shdr,	/* elf_backend_section_from_shdr */
+  elf_backend_fake_sections,		/* elf_backend_fake_sections */
+  elf_backend_section_from_bfd_section,	/* elf_backend_section_from_bfd_section */
 };
 
 #ifdef TARGET_BIG_SYM
diff --git a/bfd/hosts/hppabsd.h b/bfd/hosts/hppabsd.h
index db35a85..534ec4e 100644
--- a/bfd/hosts/hppabsd.h
+++ b/bfd/hosts/hppabsd.h
@@ -26,7 +26,7 @@ extern void free   PARAMS ((PTR));
 
 #define	HOST_PAGE_SIZE		NBPG
 #define	HOST_SEGMENT_SIZE	NBPG	/* Data seg start addr rounds to NBPG */
-#define	HOST_MACHINE_ARCH	bfd_arch_m68k
+#define	HOST_MACHINE_ARCH	bfd_arch_hppa
 /* #define	HOST_MACHINE_MACHINE	 */
 
 #define	HOST_TEXT_START_ADDR		UTEXTSEG
diff --git a/bfd/hppa.c b/bfd/hppa.c
index 2613573..eff6b66 100644
--- a/bfd/hppa.c
+++ b/bfd/hppa.c
@@ -940,7 +940,7 @@ bfd_target hppa_vec =
   {_bfd_dummy_target,
    hppa_object_p,		/* bfd_check_format */
    bfd_generic_archive_p,
-   bfd_false
+   _bfd_dummy_target
   },
   {
     bfd_false,
diff --git a/bfd/hppa_stubs.h b/bfd/hppa_stubs.h
index dfe7068..2e4111d 100644
--- a/bfd/hppa_stubs.h
+++ b/bfd/hppa_stubs.h
@@ -10,20 +10,33 @@
 #define STWS_ARG1_M8SP     	0x0fd91291	/* stws        arg1,-8(sp) */
 #define STWS_ARG2_M8SP     	0x0fd81291	/* stws        arg2,-8(sp) */
 #define STWS_ARG3_M8SP     	0x0fd71291	/* stws        arg3,-8(sp) */
+#define STWS_ARG0_M4SP     	0x0fda1299	/* stws        arg0,-4(sp) */
+#define STWS_ARG2_M4SP     	0x0fd81299	/* stws        arg2,-4(sp) */
 #define FSTWS_FARG0_M8SP   	0x27d11204	/* fstws       farg0,-8(sp) */
 #define FSTWS_FARG1_M8SP   	0x27d11205	/* fstws       farg1,-8(sp) */
 #define FSTWS_FARG2_M8SP   	0x27d11206	/* fstws       farg2,-8(sp) */
 #define FSTWS_FARG3_M8SP   	0x27d11207	/* fstws       farg3,-8(sp) */
+#define FSTDS_FARG1_M8SP   	0x2fd11205	/* fstds       farg1,-8(sp) */
+#define FSTDS_FARG3_M8SP   	0x2fd11207	/* fstds       farg3,-8(sp) */
 #define STWS_RET0_M8SP     	0x0fda1291	/* stws        arg0,-8(sp) */
 #define FSTWS_FRET0_M8SP   	0x27d11204	/* fstws       fret0,-8(sp) */
 #define LDWS_M8SP_ARG0     	0x0fd1109a	/* ldws        -8(sp),arg0 */
 #define LDWS_M8SP_ARG1     	0x0fd11099	/* ldws        -8(sp),arg1 */
 #define LDWS_M8SP_ARG2     	0x0fd11098	/* ldws        -8(sp),arg2 */
 #define LDWS_M8SP_ARG3     	0x0fd11097	/* ldws        -8(sp),arg3 */
+#define LDWS_M4SP_ARG0     	0x0fd9109a	/* ldws        -4(sp),arg0 */
+#define LDWS_M4SP_ARG1     	0x0fd91099	/* ldws        -4(sp),arg1 */
+#define LDWS_M4SP_ARG2     	0x0fd91098	/* ldws        -4(sp),arg2 */
+#define LDWS_M4SP_ARG3     	0x0fd91097	/* ldws        -4(sp),arg3 */
 #define FLDWS_M8SP_FARG0   	0x27d11004	/* fldws       -8(sp),farg0 */
 #define FLDWS_M8SP_FARG1   	0x27d11005	/* fldws       -8(sp),farg1 */
 #define FLDWS_M8SP_FARG2   	0x27d11006	/* fldws       -8(sp),farg2 */
 #define FLDWS_M8SP_FARG3   	0x27d11007	/* fldws       -8(sp),farg3 */
+#define FLDDS_M8SP_FARG0   	0x2fd11004	/* fldds       -8(sp),farg0 */
+#define FLDDS_M8SP_FARG1   	0x2fd11005	/* fldds       -8(sp),farg1 */
+#define FLDDS_M8SP_FARG2   	0x2fd11006	/* fldds       -8(sp),farg2 */
+#define FLDDS_M8SP_FARG3   	0x2fd11007	/* fldds       -8(sp),farg3 */
+#define LDWS_M4SP_RET0     	0x0fd9109c	/* ldws        -4(sp),ret0 */
 #define LDWS_M8SP_RET0     	0x0fd1109c	/* ldws        -8(sp),ret0 */
 #define FLDWS_M8SP_FRET0   	0x27d11004	/* fldws       -8(sp),fret0 */
 #define STWS_MA_ARG0_8SP   	0x0fda12b0	/* stws,ma     arg0,8(sp) */
@@ -44,6 +57,26 @@
 #define FLDWS_MB_M8SP_FARG3	0x27d13027	/* fldws,mb    -8(sp),farg3 */
 #define BL_XXX_RP          	0xe8400000	/* bl          0,rp */
 #define NOP                	0x08000240	/* nop */
-#define SUBI_8_SP          	0x97de0010	/* subi        8,sp,sp */
+#define STW_31_M24SP       	0x6bdf3fd1	/* stw         r31,-24(sr0,sp) */
+#define LDW_M24SP_RP       	0x4bc23fd1	/* ldw         -24(sr0,sp),rp */
+#define BE_XXX_0_0         	0xe0000000	/* be          0(sr0,0) */
+#define BE_N_XXX_0_0       	0xe0000002	/* be,n        0(sr0,0) */
+#define BLE_XXX_0_0        	0xe4000000	/* ble         0(sr0,0) */
+#define BLE_N_XXX_0_0      	0xe4000002	/* ble,n       0(sr0,0) */
+#define BLE_N_XXX_0_31     	0xe7e00002	/* ble,n       0(sr0,r31) */
+#define BLE_XXX_0_31       	0xe7e00000	/* ble         0(sr0,r31) */
+#define BE_N_XXX_0_31      	0xe3e00002	/* be,n        0(sr0,r31) */
+#define BE_N_XXX_0_RP      	0xe0400002	/* be,n        0(sr0,rp) */
+#define BE_XXX_0_RP        	0xe0400000	/* be          0(sr0,rp) */
+#define BLE_XXX_0_RP       	0xe4400000	/* ble         0(sr0,rp) */
+#define COPY_31_2          	0x081f0242	/* copy        r31,r2 */
+#define LDIL_XXX_31        	0x23e00000	/* ldil        0,r31 */
+#define LDIL_XXX_RP        	0x20400000	/* ldil        0,rp */
+#define LDO_0_26_26        	0x375a0000	/* ldo         0(r26),r26 */
+#define LDSID_31_RP        	0x03e010a2	/* ldsid       (r31),rp */
+#define MTSP_RP_SR0        	0x00021820	/* mtsp        rp,sr0 */
+#define LDO_0_26_26        	0x375a0000	/* ldo         0(r26),r26 */
+#define ADDI_M8_SP         	0xb7de07f1	/* addi        -8,sp,sp */
 #define LDW_M8SP_RP        	0x4bc23ff1	/* ldw         -8(sp),rp */
 #define BV_N_0RP           	0xe840c002	/* bv,n        0(rp) */
+#define BV_N_0_26          	0xeb40c002	/* bv,n        0(r26) */
diff --git a/bfd/libelf.h b/bfd/libelf.h
index f5bc2c8..2dca4a4 100644
--- a/bfd/libelf.h
+++ b/bfd/libelf.h
@@ -95,7 +95,12 @@ struct elf_backend_data
      the output BFD.  If not, put a comment here explaining why.  */
   /* @@ Was pointer to elfNAME(symbol_type).  This makes it size-
      independent.  */
-  PTR global_sym;
+  void (*elf_backend_symbol_processing) PARAMS ((bfd *, asymbol *));
+  boolean (*elf_backend_symbol_table_processing) PARAMS ((bfd *, elf32_symbol_type *, int));
+  boolean (*elf_backend_section_processing) PARAMS ((bfd *, Elf32_Internal_Shdr *));
+  boolean (*elf_backend_section_from_shdr) PARAMS ((bfd *, Elf32_Internal_Shdr *, char *));
+  boolean (*elf_backend_fake_sections) PARAMS ((bfd *, Elf32_Internal_Shdr *, asection *));
+  boolean (*elf_backend_section_from_bfd_section) PARAMS ((bfd *, Elf32_Internal_Shdr *, asection *));
 };
 
 struct elf_sym_extra
@@ -193,6 +198,8 @@ extern bfd_reloc_status_type bfd_elf_generic_reloc PARAMS ((bfd *,
 							    asection *,
 							    bfd *));
 extern boolean bfd_elf_mkobject PARAMS ((bfd *));
+extern Elf_Internal_Shdr *bfd_elf_find_section PARAMS ((bfd *, char *));
+
 extern boolean bfd_elf32_write_object_contents PARAMS ((bfd *));
 extern boolean bfd_elf64_write_object_contents PARAMS ((bfd *));