/* * Alpha ELF relocation types
*/ #define R_ALPHA_NONE 0 /* No reloc */ #define R_ALPHA_REFLONG 1 /* Direct 32 bit */ #define R_ALPHA_REFQUAD 2 /* Direct 64 bit */ #define R_ALPHA_GPREL32 3 /* GP relative 32 bit */ #define R_ALPHA_LITERAL 4 /* GP relative 16 bit w/optimization */ #define R_ALPHA_LITUSE 5 /* Optimization hint for LITERAL */ #define R_ALPHA_GPDISP 6 /* Add displacement to GP */ #define R_ALPHA_BRADDR 7 /* PC+4 relative 23 bit shifted */ #define R_ALPHA_HINT 8 /* PC+4 relative 16 bit shifted */ #define R_ALPHA_SREL16 9 /* PC relative 16 bit */ #define R_ALPHA_SREL32 10 /* PC relative 32 bit */ #define R_ALPHA_SREL64 11 /* PC relative 64 bit */ #define R_ALPHA_GPRELHIGH 17 /* GP relative 32 bit, high 16 bits */ #define R_ALPHA_GPRELLOW 18 /* GP relative 32 bit, low 16 bits */ #define R_ALPHA_GPREL16 19 /* GP relative 16 bit */ #define R_ALPHA_COPY 24 /* Copy symbol at runtime */ #define R_ALPHA_GLOB_DAT 25 /* Create GOT entry */ #define R_ALPHA_JMP_SLOT 26 /* Create PLT entry */ #define R_ALPHA_RELATIVE 27 /* Adjust by program base */ #define R_ALPHA_BRSGP 28 #define R_ALPHA_TLSGD 29 #define R_ALPHA_TLS_LDM 30 #define R_ALPHA_DTPMOD64 31 #define R_ALPHA_GOTDTPREL 32 #define R_ALPHA_DTPREL64 33 #define R_ALPHA_DTPRELHI 34 #define R_ALPHA_DTPRELLO 35 #define R_ALPHA_DTPREL16 36 #define R_ALPHA_GOTTPREL 37 #define R_ALPHA_TPREL64 38 #define R_ALPHA_TPRELHI 39 #define R_ALPHA_TPRELLO 40 #define R_ALPHA_TPREL16 41
#define SHF_ALPHA_GPREL 0x10000000
/* Legal values for e_flags field of Elf64_Ehdr. */
#define EF_ALPHA_32BIT 1 /* All addresses are below 2GB */
/* * ELF register definitions..
*/
/* * The OSF/1 version of <sys/procfs.h> makes gregset_t 46 entries long. * I have no idea why that is so. For now, we just leave it at 33 * (32 general regs + processor status word).
*/ #define ELF_NGREG 33 #define ELF_NFPREG 32
/* * This is used to ensure we don't load something for the wrong architecture.
*/ #define elf_check_arch(x) (((x)->e_machine == EM_ALPHA) && !((x)->e_flags & EF_ALPHA_32BIT))
/* * These are used to set parameters in the core dumps.
*/ #define ELF_CLASS ELFCLASS64 #define ELF_DATA ELFDATA2LSB #define ELF_ARCH EM_ALPHA
#define ELF_EXEC_PAGESIZE 8192
/* This is the location that an ET_DYN program is loaded if exec'ed. Typical use of this is to invoke "./ld.so someprog" to test out a new version of the loader. We need to make sure that it is out of the way of the program
that it will "exec", and that there is sufficient room for the brk. */
/* $0 is set by ld.so to a pointer to a function which might be registered using atexit. This provides a mean for the dynamic linker to call DT_FINI functions for shared libraries that have been loaded before the code runs.
So that we can use the same startup file with static executables, we start programs with a value of 0 to indicate that there is no
such function. */
#define ELF_PLAT_INIT(_r, load_addr) _r->r0 = 0
/* The registers are laid out in pt_regs for PAL and syscall
convenience. Re-order them for the linear elf_gregset_t. */
/* This yields a mask that user programs can use to figure out what instruction set this CPU supports. This is trivial on Alpha,
but not so on other machines. */
#define ELF_HWCAP (~amask(-1))
/* This yields a string that ld.so will use to load implementation specific libraries for optimization. This is more specific in
intent than poking at uname or /proc/cpuinfo. */
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