diff options
Diffstat (limited to 'usr/src/cmd/sgs/include/libld.h')
| -rw-r--r-- | usr/src/cmd/sgs/include/libld.h | 259 |
1 files changed, 171 insertions, 88 deletions
diff --git a/usr/src/cmd/sgs/include/libld.h b/usr/src/cmd/sgs/include/libld.h index e32d893ad6..fcb81f7460 100644 --- a/usr/src/cmd/sgs/include/libld.h +++ b/usr/src/cmd/sgs/include/libld.h @@ -23,7 +23,7 @@ * Copyright (c) 1988 AT&T * All Rights Reserved * - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. + * Copyright 2010 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ @@ -37,6 +37,7 @@ #include <string_table.h> #include <sys/avl.h> #include <alist.h> +#include <elfcap.h> #ifdef __cplusplus extern "C" { @@ -164,6 +165,29 @@ typedef struct wrap_sym_node { /* + * Bitmasks for a single capability. Capabilities come from input objects, + * augmented or replaced by mapfile directives. In addition, mapfile directives + * can be used to exclude bits that would otherwise be set in the output object. + */ +typedef struct { + elfcap_mask_t cm_value; /* Bitmask value */ + elfcap_mask_t cm_exclude; /* Bits to remove from final object */ +} CapMask; + +/* + * Combine the bitmask in a CapMask with the exclusion mask and + * return the resulting final value. + */ +#define CAPMASK_VALUE(_cbmp) ((_cbmp)->cm_value & ~(_cbmp)->cm_exclude) + +typedef struct { + CapMask c_hw_1; /* CA_SUNW_HW_1 capabilities */ + CapMask c_sf_1; /* CA_SUNW_SF_1 capabilities */ + CapMask c_hw_2; /* CA_SUNW_HW_2 capabilities */ +} Outcapset; + + +/* * Output file processing structure */ typedef Lword ofl_flag_t; @@ -180,7 +204,10 @@ struct ofl_desc { size_t ofl_size; /* image size */ APlist *ofl_maps; /* list of input mapfiles */ APlist *ofl_segs; /* list of segments */ - Alist *ofl_ents; /* list of entrance descriptors */ + APlist *ofl_segs_order; /* SEGMENT_ORDER segments */ + avl_tree_t ofl_segs_avl; /* O(log N) access to named segments */ + APlist *ofl_ents; /* list of entrance descriptors */ + avl_tree_t ofl_ents_avl; /* O(log N) access to named ent. desc */ APlist *ofl_objs; /* relocatable object file list */ Word ofl_objscnt; /* and count */ APlist *ofl_ars; /* archive library list */ @@ -310,8 +337,7 @@ struct ofl_desc { char *ofl_audit; /* object auditing required (-p) */ Alist *ofl_symfltrs; /* per-symbol filtees and their */ Alist *ofl_dtsfltrs; /* associated .dynamic/.dynstrs */ - Xword ofl_hwcap_1; /* hardware capabilities */ - Xword ofl_sfcap_1; /* software capabilities */ + Outcapset ofl_ocapset; /* object capabilities */ Lm_list *ofl_lml; /* runtime link-map list */ Gottable *ofl_gottable; /* debugging got information */ Rlxrel_cache ofl_sr_cache; /* Cache last result from */ @@ -337,8 +363,9 @@ struct ofl_desc { #define FLG_OF_SYMBOLIC 0x00002000 /* bind global symbols: -Bsymbolic */ #define FLG_OF_ADDVERS 0x00004000 /* add version stamp: -Qy */ #define FLG_OF_NOLDYNSYM 0x00008000 /* -znoldynsym set */ -#define FLG_OF_SEGORDER 0x00010000 /* segment ordering is required */ -#define FLG_OF_SEGSORT 0x00020000 /* segment sorting is required */ +#define FLG_OF_IS_ORDER 0x00010000 /* input section ordering within a */ + /* segment is required */ +#define FLG_OF_EC_FILES 0x00020000 /* Ent_desc exist w/non-NULL ec_files */ #define FLG_OF_TEXTREL 0x00040000 /* text relocations have been found */ #define FLG_OF_MULDEFS 0x00080000 /* multiple symbols are allowed */ #define FLG_OF_TLSPHDR 0x00100000 /* a TLS program header is required */ @@ -366,7 +393,7 @@ struct ofl_desc { #define FLG_OF_AUTOELM 0x002000000000 /* automatically eliminate */ /* unspecified global symbols */ #define FLG_OF_REDLSYM 0x004000000000 /* reduce local symbols */ -#define FLG_OF_SECORDER 0x008000000000 /* section ordering is required */ +#define FLG_OF_OS_ORDER 0x008000000000 /* output section ordering required */ #define FLG_OF_OSABI 0x010000000000 /* tag object as ELFOSABI_SOLARIS */ #define FLG_OF_ADJOSCNT 0x020000000000 /* ajust ofl_shdrcnt to accommodate */ /* discarded sections */ @@ -377,49 +404,51 @@ struct ofl_desc { * archive descriptor so that they may be reset should the archive require a * rescan to try and resolve undefined symbols. */ -#define FLG_OF1_ALLEXRT 0x00000001 /* extract all members from an */ +#define FLG_OF1_ALLEXRT 0x0000000001 /* extract all members from an */ /* archive file */ -#define FLG_OF1_WEAKEXT 0x00000002 /* allow archive extraction to */ +#define FLG_OF1_WEAKEXT 0x0000000002 /* allow archive extraction to */ /* resolve weak references */ -#define MSK_OF1_ARCHIVE 0x00000003 /* archive flags mask */ - -#define FLG_OF1_NOINTRP 0x00000008 /* -z nointerp flag set */ -#define FLG_OF1_ZDIRECT 0x00000010 /* -z direct flag set */ -#define FLG_OF1_NDIRECT 0x00000020 /* no-direct bindings specified */ -#define FLG_OF1_OVHWCAP 0x00000040 /* override any input hardware or */ -#define FLG_OF1_OVSFCAP 0x00000080 /* software capabilities */ -#define FLG_OF1_RELDYN 0x00000100 /* process .dynamic in rel obj */ -#define FLG_OF1_NRLXREL 0x00000200 /* -z norelaxreloc flag set */ -#define FLG_OF1_RLXREL 0x00000400 /* -z relaxreloc flag set */ -#define FLG_OF1_IGNORE 0x00000800 /* ignore unused dependencies */ - -#define FLG_OF1_NOSGHND 0x00001000 /* -z nosighandler flag set */ -#define FLG_OF1_TEXTOFF 0x00002000 /* text relocations are ok */ -#define FLG_OF1_ABSEXEC 0x00004000 /* -zabsexec set */ -#define FLG_OF1_LAZYLD 0x00008000 /* lazy loading of objects enabled */ -#define FLG_OF1_GRPPRM 0x00010000 /* dependencies are to have */ +#define MSK_OF1_ARCHIVE 0x0000000003 /* archive flags mask */ + +#define FLG_OF1_NOINTRP 0x0000000008 /* -z nointerp flag set */ +#define FLG_OF1_ZDIRECT 0x0000000010 /* -z direct flag set */ +#define FLG_OF1_NDIRECT 0x0000000020 /* no-direct bindings specified */ + +#define FLG_OF1_RELDYN 0x0000000100 /* process .dynamic in rel obj */ +#define FLG_OF1_NRLXREL 0x0000000200 /* -z norelaxreloc flag set */ +#define FLG_OF1_RLXREL 0x0000000400 /* -z relaxreloc flag set */ +#define FLG_OF1_IGNORE 0x0000000800 /* ignore unused dependencies */ + +#define FLG_OF1_NOSGHND 0x0000001000 /* -z nosighandler flag set */ +#define FLG_OF1_TEXTOFF 0x0000002000 /* text relocations are ok */ +#define FLG_OF1_ABSEXEC 0x0000004000 /* -zabsexec set */ +#define FLG_OF1_LAZYLD 0x0000008000 /* lazy loading of objects enabled */ +#define FLG_OF1_GRPPRM 0x0000010000 /* dependencies are to have */ /* GROUPPERM enabled */ -#define FLG_OF1_OVRFLW 0x00020000 /* size exceeds 32-bit limitation */ +#define FLG_OF1_OVRFLW 0x0000020000 /* size exceeds 32-bit limitation */ /* of 32-bit libld */ -#define FLG_OF1_NOPARTI 0x00040000 /* -znopartial set */ -#define FLG_OF1_BSSOREL 0x00080000 /* output relocation against bss */ +#define FLG_OF1_NOPARTI 0x0000040000 /* -znopartial set */ +#define FLG_OF1_BSSOREL 0x0000080000 /* output relocation against bss */ /* section */ -#define FLG_OF1_TLSOREL 0x00100000 /* output relocation against .tlsbss */ +#define FLG_OF1_TLSOREL 0x0000100000 /* output relocation against .tlsbss */ /* section */ -#define FLG_OF1_MEMORY 0x00200000 /* produce a memory model */ -#define FLG_OF1_NGLBDIR 0x00400000 /* no DT_1_DIRECT flag allowed */ -#define FLG_OF1_ENCDIFF 0x00800000 /* Host running linker has different */ +#define FLG_OF1_MEMORY 0x0000200000 /* produce a memory model */ +#define FLG_OF1_NGLBDIR 0x0000400000 /* no DT_1_DIRECT flag allowed */ +#define FLG_OF1_ENCDIFF 0x0000800000 /* Host running linker has different */ /* byte order than output object */ -#define FLG_OF1_VADDR 0x01000000 /* user segment defines a vaddr */ -#define FLG_OF1_EXTRACT 0x02000000 /* archive member has been extracted */ -#define FLG_OF1_RESCAN 0x04000000 /* any archives should be rescanned */ -#define FLG_OF1_IGNPRC 0x08000000 /* ignore processing required */ -#define FLG_OF1_NCSTTAB 0x10000000 /* -znocompstrtab set */ -#define FLG_OF1_DONE 0x20000000 /* link-editor processing complete */ -#define FLG_OF1_NONREG 0x40000000 /* non-regular file specified as */ +#define FLG_OF1_VADDR 0x0001000000 /* a segment defines explicit vaddr */ +#define FLG_OF1_EXTRACT 0x0002000000 /* archive member has been extracted */ +#define FLG_OF1_RESCAN 0x0004000000 /* any archives should be rescanned */ +#define FLG_OF1_IGNPRC 0x0008000000 /* ignore processing required */ +#define FLG_OF1_NCSTTAB 0x0010000000 /* -znocompstrtab set */ +#define FLG_OF1_DONE 0x0020000000 /* link-editor processing complete */ +#define FLG_OF1_NONREG 0x0040000000 /* non-regular file specified as */ /* the output file */ -#define FLG_OF1_ALNODIR 0x80000000 /* establish NODIRECT for all */ +#define FLG_OF1_ALNODIR 0x0080000000 /* establish NODIRECT for all */ /* exported interfaces. */ +#define FLG_OF1_OVHWCAP1 0x0100000000 /* override CA_SUNW_HW_1 capabilities */ +#define FLG_OF1_OVSFCAP1 0x0200000000 /* override CA_SUNW_SF_1 capabilities */ +#define FLG_OF1_OVHWCAP2 0x0400000000 /* override CA_SUNW_HW_2 capabilities */ /* * Test to see if the output file would allow the presence of @@ -665,7 +694,7 @@ struct is_desc { /* input section descriptor */ #define FLG_IS_RELUPD 0x0008 /* symbol defined here may have moved */ #define FLG_IS_SECTREF 0x0010 /* section has been referenced */ #define FLG_IS_GDATADEF 0x0020 /* section contains global data sym */ -#define FLG_IS_EXTERNAL 0x0040 /* isp from an user file */ +#define FLG_IS_EXTERNAL 0x0040 /* isp from a user file */ #define FLG_IS_INSTRMRG 0x0080 /* Usable SHF_MERGE|SHF_STRINGS sec */ #define FLG_IS_GNSTRMRG 0x0100 /* Generated mergeable string section */ #define FLG_IS_GROUPS 0x0200 /* section has groups to process */ @@ -733,76 +762,99 @@ struct os_desc { /* Output section descriptor */ #define FLG_OS_SECTREF 0x04 /* isps are not affected by -zignore */ /* - * Types of segment index. + * The sg_id field of the segment descriptor is used to establish the default + * order for program headers and segments in the output object. Segments are + * ordered according to the following SGID values that classify them based on + * their attributes. The initial set of built in segments are in this order, + * and new mapfile defined segments are inserted into these groups. Within a + * given SGID group, the position of new segments depends on the syntax + * version of the mapfile that creates them. Version 1 (original sysv) + * mapfiles place the new segment at the head of their group (reverse creation + * order). The newer syntax places them at the end, following the others + * (creation order). + * + * Note that any new segments must always be added after PT_PHDR and + * PT_INTERP (refer Generic ABI, Page 5-4). */ -typedef enum { - LD_PHDR, - LD_INTERP, - LD_SUNWCAP, - LD_TEXT, - LD_DATA, - LD_BSS, +#define SGID_PHDR 0 /* PT_PHDR */ +#define SGID_INTERP 1 /* PT_INTERP */ +#define SGID_SUNWCAP 2 /* PT_SUNWCAP */ +#define SGID_TEXT 3 /* PT_LOAD */ +#define SGID_DATA 4 /* PT_LOAD */ +#define SGID_BSS 5 /* PT_LOAD */ #if defined(_ELF64) - LD_LRODATA, /* (amd64-only) */ - LD_LDATA, /* (amd64-only) */ +#define SGID_LRODATA 6 /* PT_LOAD (amd64-only) */ +#define SGID_LDATA 7 /* PT_LOAD (amd64-only) */ #endif - LD_DYN, - LD_DTRACE, - LD_TLS, - LD_UNWIND, - LD_NOTE, - LD_EXTRA, - LD_NUM -} Segment_id; - +#define SGID_TEXT_EMPTY 8 /* PT_LOAD, reserved (?E in version 1 syntax) */ +#define SGID_NULL_EMPTY 9 /* PT_NULL, reserved (?E in version 1 syntax) */ +#define SGID_DYN 10 /* PT_DYNAMIC */ +#define SGID_DTRACE 11 /* PT_SUNWDTRACE */ +#define SGID_TLS 12 /* PT_TLS */ +#define SGID_UNWIND 13 /* PT_SUNW_UNWIND */ +#define SGID_SUNWSTACK 14 /* PT_SUNWSTACK */ +#define SGID_NOTE 15 /* PT_NOTE */ +#define SGID_NULL 16 /* PT_NULL, mapfile defined empty phdr slots */ + /* for use by post processors */ +#define SGID_EXTRA 17 /* PT_NULL (final catchall) */ + +typedef Half sg_flags_t; struct sg_desc { /* output segment descriptor */ - Segment_id sg_id; /* segment identifier (for sorting) */ + Word sg_id; /* segment identifier (for sorting) */ Phdr sg_phdr; /* segment header for output file */ - const char *sg_name; /* segment name */ + const char *sg_name; /* segment name for PT_LOAD, PT_NOTE, */ + /* and PT_NULL, otherwise NULL */ Xword sg_round; /* data rounding required (mapfile) */ Xword sg_length; /* maximum segment length; if 0 */ /* segment is not specified */ APlist *sg_osdescs; /* list of output section descriptors */ - APlist *sg_secorder; /* list specifying section ordering */ - /* for the segment */ - Half sg_flags; - Sym_desc *sg_sizesym; /* size symbol for this segment */ - Xword sg_addralign; /* LCM of sh_addralign */ + APlist *sg_is_order; /* list of entry criteria */ + /* giving input section order */ + Alist *sg_os_order; /* list specifying output section */ + /* ordering for the segment */ + sg_flags_t sg_flags; + APlist *sg_sizesym; /* size symbols for this segment */ + Xword sg_align; /* LCM of sh_addralign */ Elf_Scn *sg_fscn; /* the SCN of the first section. */ + avl_node_t sg_avlnode; /* AVL book-keeping */ }; -#define FLG_SG_VADDR 0x0001 /* vaddr segment attribute set */ -#define FLG_SG_PADDR 0x0002 /* paddr segment attribute set */ -#define FLG_SG_LENGTH 0x0004 /* length segment attribute set */ -#define FLG_SG_ALIGN 0x0008 /* align segment attribute set */ -#define FLG_SG_ROUND 0x0010 /* round segment attribute set */ -#define FLG_SG_FLAGS 0x0020 /* flags segment attribute set */ -#define FLG_SG_TYPE 0x0040 /* type segment attribute set */ -#define FLG_SG_ORDER 0x0080 /* has ordering been turned on for */ - /* this segment. */ - /* i.e. ?[O] option in mapfile */ -#define FLG_SG_NOHDR 0x0100 /* don't map ELF or phdrs into */ - /* this segment */ -#define FLG_SG_EMPTY 0x0200 /* an empty segment specification */ +#define FLG_SG_P_VADDR 0x0001 /* p_vaddr segment attribute set */ +#define FLG_SG_P_PADDR 0x0002 /* p_paddr segment attribute set */ +#define FLG_SG_LENGTH 0x0004 /* length segment attribute set */ +#define FLG_SG_P_ALIGN 0x0008 /* p_align segment attribute set */ +#define FLG_SG_ROUND 0x0010 /* round segment attribute set */ +#define FLG_SG_P_FLAGS 0x0020 /* p_flags segment attribute set */ +#define FLG_SG_P_TYPE 0x0040 /* p_type segment attribute set */ +#define FLG_SG_IS_ORDER 0x0080 /* input section ordering is required */ + /* for this segment. */ +#define FLG_SG_NOHDR 0x0100 /* don't map ELF or phdrs into */ + /* this segment */ +#define FLG_SG_EMPTY 0x0200 /* an empty segment specification */ /* no input sections will be */ /* associated to this section */ -#define FLG_SG_KEY 0x0400 /* segment requires sort keys */ -#define FLG_SG_DISABLED 0x0800 /* this segment is disabled */ -#define FLG_SG_PHREQ 0x1000 /* this segment requires a program */ +#define FLG_SG_KEY 0x0400 /* segment requires sort keys */ +#define FLG_SG_NODISABLE 0x0800 /* FLG_SG_DISABLED is not allowed on */ + /* this segment */ +#define FLG_SG_DISABLED 0x1000 /* this segment is disabled */ +#define FLG_SG_PHREQ 0x2000 /* this segment requires a program */ /* header */ +#define FLG_SG_ORDERED 0x4000 /* SEGMENT_ORDER segment */ struct sec_order { const char *sco_secname; /* section name to be ordered */ - Word sco_index; /* ordering index for section */ Half sco_flags; }; #define FLG_SGO_USED 0x0001 /* was ordering used? */ +typedef Half ec_flags_t; struct ent_desc { /* input section entrance criteria */ - APlist *ec_files; /* files from which to accept */ + const char *ec_name; /* entrace criteria name, or NULL */ + Alist *ec_files; /* files from which to accept */ /* sections */ - const char *ec_name; /* name to match (NULL if none) */ + const char *ec_is_name; /* input section name to match */ + /* (NULL if none) */ Word ec_type; /* section type */ Word ec_attrmask; /* section attribute mask (AWX) */ Word ec_attrbits; /* sections attribute bits */ @@ -811,11 +863,35 @@ struct ent_desc { /* input section entrance criteria */ /* meeting this criteria should */ /* inserted. Used for reordering */ /* of sections. */ - Half ec_flags; + ec_flags_t ec_flags; + avl_node_t ec_avlnode; /* AVL book-keeping */ }; #define FLG_EC_BUILTIN 0x0001 /* built in descriptor */ #define FLG_EC_USED 0x0002 /* entrance criteria met? */ +#define FLG_EC_CATCHALL 0x0004 /* Catches any section */ + +/* + * Ent_desc_file is the type of element maintained in the ec_files Alist + * of an entrance criteria descriptor. Each item maintains one file + * path, and a set of flags that specify the type of comparison it implies, + * and other information about it. The comparison type is maintained in + * the bottom byte of the flags. + */ +#define TYP_ECF_MASK 0x00ff /* Comparison type mask */ +#define TYP_ECF_PATH 0 /* Compare to file path */ +#define TYP_ECF_BASENAME 1 /* Compare to file basename */ +#define TYP_ECF_OBJNAME 2 /* Compare to regular file basename, */ + /* or to archive member name */ +#define TYP_ECF_NUM 3 + +#define FLG_ECF_ARMEMBER 0x0100 /* name includes archive member */ + +typedef struct { + Word edf_flags; /* Type of comparison */ + const char *edf_name; /* String to compare to */ + size_t edf_name_len; /* strlen(edf_name) */ +} Ent_desc_file; /* * One structure is allocated for a move entry, and associated to the symbol @@ -1178,6 +1254,13 @@ typedef struct ar_desc { */ #define FLG_ARD_EXTRACT 0x00010000 /* archive member has been extracted */ +/* Mapfile versions supported by libld */ +#define MFV_NONE 0 /* Not a valid version */ +#define MFV_SYSV 1 /* Original System V syntax */ +#define MFV_SOLARIS 2 /* Solaris mapfile syntax */ +#define MFV_NUM 3 /* # of mapfile versions */ + + /* * Function Declarations. */ |