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Updates to common.h for Oct 4, 1999 Draft of ELF ABI.
- To: binutils at sourceware dot cygnus dot com
- Subject: Updates to common.h for Oct 4, 1999 Draft of ELF ABI.
- From: Nick Clifton <nickc at cygnus dot com>
- Date: Mon, 27 Dec 1999 13:24:31 -0800
Hi Guys,
Below is a patch to add the new constants defined by the October
4th, 1999 draft of the ELF ABI spec. (Which was sent to me by
H.J. Lu - thanks H.J.)
Note that there are a couple of conflicts that arise as a result of
this patch:
* The new spec defines a value of 10 in the e_machine field of the
elf header as standing for a little endian MIPS R3000. We
currently have this as indicating a big endian MIPS R4000.
* The new spec has redefined the value for SHT_HIUSER from
0x8fffffff to 0xffffffff. I am not sure if this is deliberate
or a typo, but I have put it in.
* The new spec defines a new macro ELF32_ST_OTHER which is
supposed to get at the unused bits in the st_other field of
the elf symbol structure. However it defines this macro to be
the same as the macro ELF32_ST_VISIBILITY which is used to get
at the *used* bits of the st_other field. I have taken the
liberty of correcting the macro definition for ELF32_ST_OTHER.
* The spec redefines the value of DT_LOOS from 0x60000000 to
0x6000000d and DT_HIOS from 0x6fffffff to 0x6fff0000. I have
ignored both of these redefinitions.
* The new spec defines the value of the new dynamic section tag
DT_ENCODING as 32. However this value conflicts with the
following definition of the tag DT_PREINIT_ARRAY which also has
a value of 32. Since all of the preceeding tags have been in
ascending numerical order, and since no tag was assigned the
value of 31, I have assumed that this was a typo, and used the
value of 31 instead.
Any objections to my applying this patch ?
Cheers
Nick
1999-12-27 Nick Clifton <nickc@cygnus.com>
* common.h: Upgrade to match Oct4, 1999 Draft ELF ABI Spec.
(EM_MIPS_RS3_LE): New machine number.
(EM_RCE): New machine number.
(EM_MMA): New machine number.
(EM_PCP): New machine number.
(EM_NCPU): New machine number.
(EM_NDR1): New machine number.
(EM_STARCORE): New machine number.
(EM_ME16): New machine number.
(EM_ST100): New machine number.
(EM_TINYJ): New machine number.
(EM_FX66): New machine number.
(EM_ST9PLUS): New machine number.
(EM_ST7): New machine number.
(EM_68HC16): New machine number.
(EM_68HC11): New machine number.
(EM_68HC08): New machine number.
(EM_68HC05): New machine number.
(EM_SVX): New machine number.
(EM_VAX): New machine number.
(PF_MASKOS): Change value.
(SHT_INIT_ARRAY): New value for sh_type field.
(SHT_FINI_ARRAY): New value for sh_type field.
(SHT_PREINIT_ARRAY): New value for sh_type field.
(SHT_HIUSER): Change value.
(SHF_MERGE): New valye for sh_flags field.
(SHF_STRINGS): New valye for sh_flags field.
(SHF_INFO_LINK): New valye for sh_flags field.
(SHF_OS_NONCONFORMING): New valye for sh_flags field.
(SHF_MASKOS): Change value.
(ELF_ST_VISIBILITY): New macro.
(ELF_ST_OTHER): New macro.
(STT_COMMON): New symbol type.
(STV_DEFAULT): Value for symbol visibility.
(STV_INTERNAL): Value for symbol visibility.
(STV_HIDDEN): Value for symbol visibility.
(STV_PROTECTED): Value for symbol visibility.
(DT_RUNPATH): New dynamic section tag.
(DT_FLAGS): New dynamic section tag.
(DT_ENCODING): New dynamic section tag.
(DT_PREINIT_ARRAY): New dynamic section tag.
(DT_PREINIT_ARRAYSZ): New dynamic section tag.
(DT_LOPROC): New dynamic section tag index.
(DT_HIPROC): New dynamic section tag index.
(DF_ORIGIN): Value for dynamic section flag.
(DF_SYMBOLIC): Value for dynamic section flag.
(DF_TEXTREL): Value for dynamic section flag.
(DF_BIND_NOW): Value for dynamic section flag.
Index: include/elf/common.h
===================================================================
RCS file: /cvs/binutils/binutils/include/elf/common.h,v
retrieving revision 1.6
diff -p -r1.6 common.h
*** common.h 1999/12/07 23:51:14 1.6
--- common.h 1999/12/27 21:00:28
*************** Foundation, Inc., 59 Temple Place - Suit
*** 92,99 ****
--- 92,101 ----
#define EM_MIPS 8 /* MIPS R3000 (officially, big-endian only) */
#define EM_S370 9 /* Amdahl */
#define EM_MIPS_RS4_BE 10 /* MIPS R4000 big-endian */
+ #define EM_MIPS_RS3_LE 10 /* MIPS R3000 little-endian (Oct 4 1999 Draft)*/
#define EM_PARISC 15 /* HPPA */
+
#define EM_VPP550 17 /* Fujitsu VPP500 */
#define EM_SPARC32PLUS 18 /* Sun's "v8plus" */
#define EM_960 19 /* Intel 80960 */
*************** Foundation, Inc., 59 Temple Place - Suit
*** 104,109 ****
--- 106,112 ----
#define EM_FR20 37 /* Fujitsu FR20 */
#define EM_RH32 38 /* TRW RH32 */
#define EM_MCORE 39 /* Motorolla MCore */ /* May also be taken by Fujitsu MMA */
+ #define EM_RCE 39 /* Old name for MCore */
#define EM_ARM 40 /* ARM */
#define EM_OLD_ALPHA 41 /* Digital Alpha */
#define EM_SH 42 /* Hitachi SH */
*************** Foundation, Inc., 59 Temple Place - Suit
*** 118,123 ****
--- 121,145 ----
#define EM_MIPS_X 51 /* Stanford MIPS-X */
#define EM_COLDFIRE 52 /* Motorola Coldfire */
#define EM_68HC12 53 /* Motorola M68HC12 */
+ #define EM_MMA 54 /* Fujitsu Multimedia Accelerator */
+ #define EM_PCP 55 /* Siemens PCP */
+ #define EM_NCPU 56 /* Sony nCPU embedded RISC processor */
+ #define EM_NDR1 57 /* Denso NDR1 microprocesspr */
+ #define EM_STARCORE 58 /* Motorola Star*Core processor */
+ #define EM_ME16 59 /* Toyota ME16 processor */
+ #define EM_ST100 60 /* STMicroelectronics ST100 processor */
+ #define EM_TINYJ 61 /* Advanced Logic Corp. TinyJ embedded processor */
+
+ #define EM_FX66 66 /* Siemens FX66 microcontroller */
+ #define EM_ST9PLUS 67 /* STMicroelectronics ST9+ 8/16 bit microcontroller */
+ #define EM_ST7 68 /* STMicroelectronics ST7 8-bit microcontroller */
+ #define EM_68HC16 69 /* Motorola MC68HC16 Microcontroller */
+ #define EM_68HC11 70 /* Motorola MC68HC11 Microcontroller */
+ #define EM_68HC08 71 /* Motorola MC68HC08 Microcontroller */
+ #define EM_68HC05 72 /* Motorola MC68HC05 Microcontroller */
+ #define EM_SVX 73 /* Silicon Graphics SVx */
+ #define EM_ST19 74 /* STMicroelectronics ST19 8-bit microcontroller */
+ #define EM_VAX 75 /* Digital VAX */
#define EM_PJ 99 /* picoJava */
*************** Foundation, Inc., 59 Temple Place - Suit
*** 191,197 ****
#define PF_X (1 << 0) /* Segment is executable */
#define PF_W (1 << 1) /* Segment is writable */
#define PF_R (1 << 2) /* Segment is readable */
! #define PF_MASKOS 0x0F000000 /* OS-specific reserved bits */
#define PF_MASKPROC 0xF0000000 /* Processor-specific reserved bits */
/* Values for section header, sh_type field */
--- 213,220 ----
#define PF_X (1 << 0) /* Segment is executable */
#define PF_W (1 << 1) /* Segment is writable */
#define PF_R (1 << 2) /* Segment is readable */
! /* #define PF_MASKOS 0x0F000000 *//* OS-specific reserved bits */
! #define PF_MASKOS 0x0FF00000 /* New value, Oct 4, 1999 Draft */
#define PF_MASKPROC 0xF0000000 /* Processor-specific reserved bits */
/* Values for section header, sh_type field */
*************** Foundation, Inc., 59 Temple Place - Suit
*** 209,214 ****
--- 232,241 ----
#define SHT_SHLIB 10 /* Reserved, unspecified semantics */
#define SHT_DYNSYM 11 /* Dynamic linking symbol table */
+ #define SHT_INIT_ARRAY 14 /* Array of pointers to init functions */
+ #define SHT_FINI_ARRAY 15 /* Array of pointers to finish functions */
+ #define SHT_PREINIT_ARRAY 16 /* Array of pointers to pre-init functions */
+
#define SHT_LOOS 0x60000000 /* Operating system specific semantics, lo */
#define SHT_HIOS 0x6fffffff /* Operating system specific semantics, hi */
*************** Foundation, Inc., 59 Temple Place - Suit
*** 226,239 ****
#define SHT_LOPROC 0x70000000 /* Processor-specific semantics, lo */
#define SHT_HIPROC 0x7FFFFFFF /* Processor-specific semantics, hi */
#define SHT_LOUSER 0x80000000 /* Application-specific semantics */
! #define SHT_HIUSER 0x8FFFFFFF /* Application-specific semantics */
/* Values for section header, sh_flags field */
#define SHF_WRITE (1 << 0) /* Writable data during execution */
#define SHF_ALLOC (1 << 1) /* Occupies memory during execution */
#define SHF_EXECINSTR (1 << 2) /* Executable machine instructions */
! #define SHF_MASKOS 0x0F000000 /* OS-specific semantics */
#define SHF_MASKPROC 0xF0000000 /* Processor-specific semantics */
/* Values of note segment descriptor types for core files. */
--- 253,274 ----
#define SHT_LOPROC 0x70000000 /* Processor-specific semantics, lo */
#define SHT_HIPROC 0x7FFFFFFF /* Processor-specific semantics, hi */
#define SHT_LOUSER 0x80000000 /* Application-specific semantics */
! /* #define SHT_HIUSER 0x8FFFFFFF *//* Application-specific semantics */
! #define SHT_HIUSER 0xFFFFFFFF /* New value, defined in Oct 4, 1999 Draft */
/* Values for section header, sh_flags field */
#define SHF_WRITE (1 << 0) /* Writable data during execution */
#define SHF_ALLOC (1 << 1) /* Occupies memory during execution */
#define SHF_EXECINSTR (1 << 2) /* Executable machine instructions */
! #define SHF_MERGE (1 << 4) /* Data in this section can be merged */
! #define SHF_STRINGS (1 << 5) /* Contains null terminated character strings */
! #define SHF_INFO_LINK (1 << 6) /* sh_info holds section header table index */
! #define SHF_LINK_ORDER (1 << 7) /* Preserve section ordering when linking */
! #define SHF_OS_NONCONFORMING (1 << 8) /* OS specifci processing required */
!
! /* #define SHF_MASKOS 0x0F000000 *//* OS-specific semantics */
! #define SHF_MASKOS 0x0FF00000 /* New value, Oct 4, 1999 Draft */
#define SHF_MASKPROC 0xF0000000 /* Processor-specific semantics */
/* Values of note segment descriptor types for core files. */
*************** Foundation, Inc., 59 Temple Place - Suit
*** 242,249 ****
#define NT_FPREGSET 2 /* Contains copy of fpregset struct */
#define NT_PRPSINFO 3 /* Contains copy of prpsinfo struct */
#define NT_TASKSTRUCT 4 /* Contains copy of task struct */
! #define NT_PRXFPREG 0x46e62b7f /* Contains a user_xfpregs_struct;
! note name must be "LINUX". */
/* Note segments for core files on dir-style procfs systems. */
--- 277,284 ----
#define NT_FPREGSET 2 /* Contains copy of fpregset struct */
#define NT_PRPSINFO 3 /* Contains copy of prpsinfo struct */
#define NT_TASKSTRUCT 4 /* Contains copy of task struct */
! #define NT_PRXFPREG 0x46e62b7f /* Contains a user_xfpregs_struct; */
! /* note name must be "LINUX". */
/* Note segments for core files on dir-style procfs systems. */
*************** Foundation, Inc., 59 Temple Place - Suit
*** 266,271 ****
--- 301,327 ----
#define ELF_ST_TYPE(val) ((val) & 0xF)
#define ELF_ST_INFO(bind,type) (((bind) << 4) + ((type) & 0xF))
+ /* The 64bit and 32bit versions of these macros are identical, but
+ the ELF spec defines them, so here they are. */
+ #define ELF32_ST_BIND ELF_ST_BIND
+ #define ELF32_ST_TYPE ELF_ST_TYPE
+ #define ELF32_ST_INFO ELF_ST_INFO
+ #define ELF64_ST_BIND ELF_ST_BIND
+ #define ELF64_ST_TYPE ELF_ST_TYPE
+ #define ELF64_ST_INFO ELF_ST_INFO
+
+ /* These two macros disassemble and assemble a symbol's visibility into
+ the st_other field. The STV_ defines specificy the actual visibility. */
+
+ #define ELF_ST_VISIBILITY(v) ((v) & 0x3)
+ #define ELF_ST_OTHER(o) ((o) & ~0x3)
+
+ #define ELF32_ST_VISIBILITY ELF_ST_VISIBILITY
+ #define ELF32_ST_OTHER ELF_ST_OTHER
+ #define ELF64_ST_VISIBILITY ELF_ST_VISIBILITY
+ #define ELF64_ST_OTHER ELF_ST_OTHER
+
+
#define STN_UNDEF 0 /* undefined symbol index */
#define STB_LOCAL 0 /* Symbol not visible outside obj */
*************** Foundation, Inc., 59 Temple Place - Suit
*** 281,286 ****
--- 337,343 ----
#define STT_FUNC 2 /* Symbol is a code object */
#define STT_SECTION 3 /* Symbol associated with a section */
#define STT_FILE 4 /* Symbol gives a file name */
+ #define STT_COMMON 5 /* An uninitialised common block */
#define STT_LOOS 10 /* OS-specific semantics */
#define STT_HIOS 12 /* OS-specific semantics */
#define STT_LOPROC 13 /* Application-specific semantics */
*************** Foundation, Inc., 59 Temple Place - Suit
*** 299,304 ****
--- 356,370 ----
#define SHN_COMMON 0xFFF2 /* Associated symbol is in common */
#define SHN_HIRESERVE 0xFFFF /* End range of reserved indices */
+ /* The following constants control how a symbol may be accessed once it has
+ become part of an executable or shared library. */
+
+ #define STV_DEFAULT 0 /* Visibility is specified by binding type */
+ #define STV_INTERNAL 1 /* OS specific version of STV_HIDDEN */
+ #define STV_HIDDEN 2 /* Can only be seen inside currect component */
+ #define STV_PROTECTED 3 /* Treat as STB_LOCAL inside current component */
+
+
/* relocation info handling macros */
#define ELF32_R_SYM(i) ((i) >> 8)
*************** Foundation, Inc., 59 Temple Place - Suit
*** 340,349 ****
#define DT_FINI_ARRAY 26
#define DT_INIT_ARRAYSZ 27
#define DT_FINI_ARRAYSZ 28
- #define DT_LOOS 0x60000000
- #define DT_HIOS 0x6fffffff
-
/* The next four dynamic tags are used on Solaris. We support them
everywhere. */
#define DT_VALRNGLO 0x6ffffd00
--- 406,422 ----
#define DT_FINI_ARRAY 26
#define DT_INIT_ARRAYSZ 27
#define DT_FINI_ARRAYSZ 28
+ #define DT_RUNPATH 29
+ #define DT_FLAGS 30
+ #define DT_ENCODING 31 /* Note: Oct 4, 1999 Draft specifies this as 32, but this conflicts with DT_PREINIT_ARRAY */
+ #define DT_PREINIT_ARRAY 32
+ #define DT_PREINIT_ARRAYSZ 33
+
+ #define DT_LOOS 0x60000000 /* Note: Oct 4, 1999 draft has this as 0x6fff000d */
+ #define DT_HIOS 0x6fffffff /* Note: Oct 4, 1999 draft has this as 0x6fff0000 */
+ #define DT_LOPROC 0x70000000
+ #define DT_HIPROC 0x7fffffff
/* The next four dynamic tags are used on Solaris. We support them
everywhere. */
#define DT_VALRNGLO 0x6ffffd00
*************** Foundation, Inc., 59 Temple Place - Suit
*** 400,405 ****
--- 473,484 ----
#define DF_1_DIRECT 0x00000100
#define DF_1_TRANS 0x00000200
#define DF_1_INTERPOSE 0x00000400
+
+ /* Flag values for the DT_FLAGS entry. */
+ #define DF_ORIGIN (1 << 0)
+ #define DF_SYMBOLIC (1 << 1)
+ #define DF_TEXTREL (1 << 2)
+ #define DF_BIND_NOW (1 << 3)
/* These constants are used for the version number of a Elf32_Verdef
structure. */