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/*
* Various assmbly language/system dependent hacks that are required
* so that we can minimize the amount of platform specific code.
*/
#define LINUXBIN
/* Define this if the system uses RELOCA. */
#define ELF_USES_RELOCA
/*
* Initialization sequence for a GOT. For the Sparc, this points to the
* PLT, and we need to initialize a couple of the slots. The PLT should
* look like:
*
* save %sp, -64, %sp
* call _dl_linux_resolve
* nop
* .word implementation_dependent
*/
#define INIT_GOT(GOT_BASE,MODULE) \
{ \
GOT_BASE[0] = 0x9de3bfc0; /* save %sp, -64, %sp */ \
GOT_BASE[1] = 0x40000000 | (((unsigned int) _dl_linux_resolve - (unsigned int) GOT_BASE - 4) >> 2); \
GOT_BASE[2] = 0x01000000; /* nop */ \
GOT_BASE[3] = (int) MODULE; \
}
/* Here we define the magic numbers that this dynamic loader should accept */
#define MAGIC1 EM_SPARC
#undef MAGIC2
/* Used for error messages */
#define ELF_TARGET "Sparc"
#ifndef COMPILE_ASM
extern unsigned int _dl_linux_resolver(unsigned int reloc_entry,
unsigned int * i);
#endif
/*
* Define this if you want a dynamic loader that works on Solaris.
*/
#ifndef __linux__
#define SOLARIS_COMPATIBLE
#endif
#ifndef COMPILE_ASM
/* Cheap modulo implementation, taken from arm/ld_sysdep.h. */
static inline unsigned long
sparc_mod(unsigned long m, unsigned long p)
{
unsigned long i, t, inc;
i = p;
t = 0;
while (!(i & (1 << 31))) {
i <<= 1;
t++;
}
t--;
for (inc = t; inc > 2; inc--) {
i = p << inc;
if (i & (1 << 31))
break;
while (m >= i) {
m -= i;
i <<= 1;
if (i & (1 << 31))
break;
if (i < p)
break;
}
}
while (m >= p)
m -= p;
return m;
}
#define do_rem(result, n, base) ((result) = sparc_mod(n, base))
#endif
/*
* dbx wants the binder to have a specific name. Mustn't disappoint it.
*/
#ifdef SOLARIS_COMPATIBLE
#define _dl_linux_resolve _elf_rtbndr
#endif
/* 4096 bytes alignment */
/* ...but 8192 is required for mmap() on sparc64 kernel */
#define PAGE_ALIGN 0xffffe000
#define ADDR_ALIGN 0x1fff
#define OFFS_ALIGN 0x7fffe000
/* ELF_RTYPE_CLASS_PLT iff TYPE describes relocation of a PLT entry, so
PLT entries should not be allowed to define the value.
ELF_RTYPE_CLASS_NOCOPY iff TYPE should not be allowed to resolve to one
of the main executable's symbols, as for a COPY reloc. */
#define elf_machine_type_class(type) \
((((type) == R_SPARC_JMP_SLOT) * ELF_RTYPE_CLASS_PLT) \
| (((type) == R_SPARC_COPY) * ELF_RTYPE_CLASS_COPY))
/* The SPARC overlaps DT_RELA and DT_PLTREL. */
#define ELF_MACHINE_PLTREL_OVERLAP 1
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