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Differential D22360 Diff 66120 head/cddl/contrib/opensolaris/lib/libdtrace/common/dt_link.c

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head/cddl/contrib/opensolaris/lib/libdtrace/common/dt_link.c

Show First 20 Lines • Show All 223 Lines • ▼ Show 20 Lines for (i = 0; i < dof->dofh_secnum; i++) {
/*LINTED*/ /*LINTED*/
dofr = (dof_relodesc_t *)((char *)dof + s->dofs_offset); dofr = (dof_relodesc_t *)((char *)dof + s->dofs_offset);
nrel = s->dofs_size / s->dofs_entsize; nrel = s->dofs_size / s->dofs_entsize;
s = &dofs[dofrh->dofr_tgtsec]; s = &dofs[dofrh->dofr_tgtsec];
for (j = 0; j < nrel; j++) { for (j = 0; j < nrel; j++) {
#if defined(__aarch64__) #if defined(__aarch64__)
/* XXX */ rel->r_offset = s->dofs_offset +
printf("%s:%s(%d): aarch64 not implemented\n", dofr[j].dofr_offset;
__FUNCTION__, __FILE__, __LINE__); rel->r_info = ELF32_R_INFO(count + dep->de_global,
R_ARM_REL32);
#elif defined(__arm__) #elif defined(__arm__)
/* XXX */ /* XXX */
printf("%s:%s(%d): arm not implemented\n", printf("%s:%s(%d): arm not implemented\n",
__FUNCTION__, __FILE__, __LINE__); __FUNCTION__, __FILE__, __LINE__);
#elif defined(__i386) || defined(__amd64) #elif defined(__i386) || defined(__amd64)
rel->r_offset = s->dofs_offset + rel->r_offset = s->dofs_offset +
dofr[j].dofr_offset; dofr[j].dofr_offset;
rel->r_info = ELF32_R_INFO(count + dep->de_global, rel->r_info = ELF32_R_INFO(count + dep->de_global,
▲ Show 20 Lines • Show All 177 Lines • ▼ Show 20 Lines for (i = 0; i < dof->dofh_secnum; i++) {
/*LINTED*/ /*LINTED*/
dofr = (dof_relodesc_t *)((char *)dof + s->dofs_offset); dofr = (dof_relodesc_t *)((char *)dof + s->dofs_offset);
nrel = s->dofs_size / s->dofs_entsize; nrel = s->dofs_size / s->dofs_entsize;
s = &dofs[dofrh->dofr_tgtsec]; s = &dofs[dofrh->dofr_tgtsec];
for (j = 0; j < nrel; j++) { for (j = 0; j < nrel; j++) {
#if defined(__aarch64__) #if defined(__aarch64__)
/* XXX */ rel->r_offset = s->dofs_offset +
dofr[j].dofr_offset;
rel->r_info = ELF64_R_INFO(count + dep->de_global,
R_AARCH64_PREL64);
#elif defined(__arm__) #elif defined(__arm__)
/* XXX */ /* XXX */
#elif defined(__mips__) #elif defined(__mips__)
/* XXX */ /* XXX */
#elif defined(__powerpc__) #elif defined(__powerpc__)
rel->r_offset = s->dofs_offset + rel->r_offset = s->dofs_offset +
dofr[j].dofr_offset; dofr[j].dofr_offset;
rel->r_info = ELF64_R_INFO(count + dep->de_global, rel->r_info = ELF64_R_INFO(count + dep->de_global,
▲ Show 20 Lines • Show All 99 Lines • ▼ Show 20 Lines
#elif defined(__mips__) #elif defined(__mips__)
elf_file.ehdr.e_machine = EM_MIPS; elf_file.ehdr.e_machine = EM_MIPS;
#elif defined(__powerpc__) #elif defined(__powerpc__)
elf_file.ehdr.e_machine = EM_PPC; elf_file.ehdr.e_machine = EM_PPC;
#elif defined(__sparc) #elif defined(__sparc)
elf_file.ehdr.e_machine = EM_SPARC; elf_file.ehdr.e_machine = EM_SPARC;
#elif defined(__i386) || defined(__amd64) #elif defined(__i386) || defined(__amd64)
elf_file.ehdr.e_machine = EM_386; elf_file.ehdr.e_machine = EM_386;
#elif defined(__aarch64__)
elf_file.ehdr.e_machine = EM_AARCH64;
#endif #endif
elf_file.ehdr.e_version = EV_CURRENT; elf_file.ehdr.e_version = EV_CURRENT;
elf_file.ehdr.e_shoff = sizeof (Elf32_Ehdr); elf_file.ehdr.e_shoff = sizeof (Elf32_Ehdr);
elf_file.ehdr.e_ehsize = sizeof (Elf32_Ehdr); elf_file.ehdr.e_ehsize = sizeof (Elf32_Ehdr);
elf_file.ehdr.e_phentsize = sizeof (Elf32_Phdr); elf_file.ehdr.e_phentsize = sizeof (Elf32_Phdr);
elf_file.ehdr.e_shentsize = sizeof (Elf32_Shdr); elf_file.ehdr.e_shentsize = sizeof (Elf32_Shdr);
elf_file.ehdr.e_shnum = nshdr; elf_file.ehdr.e_shnum = nshdr;
elf_file.ehdr.e_shstrndx = ESHDR_SHSTRTAB; elf_file.ehdr.e_shstrndx = ESHDR_SHSTRTAB;
▲ Show 20 Lines • Show All 130 Lines • ▼ Show 20 Lines
#elif defined(__mips__) #elif defined(__mips__)
elf_file.ehdr.e_machine = EM_MIPS; elf_file.ehdr.e_machine = EM_MIPS;
#elif defined(__powerpc64__) #elif defined(__powerpc64__)
elf_file.ehdr.e_machine = EM_PPC64; elf_file.ehdr.e_machine = EM_PPC64;
#elif defined(__sparc) #elif defined(__sparc)
elf_file.ehdr.e_machine = EM_SPARCV9; elf_file.ehdr.e_machine = EM_SPARCV9;
#elif defined(__i386) || defined(__amd64) #elif defined(__i386) || defined(__amd64)
elf_file.ehdr.e_machine = EM_AMD64; elf_file.ehdr.e_machine = EM_AMD64;
#elif defined(__aarch64__)
elf_file.ehdr.e_machine = EM_AARCH64;
#endif #endif
elf_file.ehdr.e_version = EV_CURRENT; elf_file.ehdr.e_version = EV_CURRENT;
elf_file.ehdr.e_shoff = sizeof (Elf64_Ehdr); elf_file.ehdr.e_shoff = sizeof (Elf64_Ehdr);
elf_file.ehdr.e_ehsize = sizeof (Elf64_Ehdr); elf_file.ehdr.e_ehsize = sizeof (Elf64_Ehdr);
elf_file.ehdr.e_phentsize = sizeof (Elf64_Phdr); elf_file.ehdr.e_phentsize = sizeof (Elf64_Phdr);
elf_file.ehdr.e_shentsize = sizeof (Elf64_Shdr); elf_file.ehdr.e_shentsize = sizeof (Elf64_Shdr);
elf_file.ehdr.e_shnum = nshdr; elf_file.ehdr.e_shnum = nshdr;
elf_file.ehdr.e_shstrndx = ESHDR_SHSTRTAB; elf_file.ehdr.e_shstrndx = ESHDR_SHSTRTAB;
▲ Show 20 Lines • Show All 99 Lines • ▼ Show 20 Lines if (GELF_ST_TYPE(sym->st_info) == STT_FUNC) {
return (0); return (0);
} }
} }
return (-1); return (-1);
} }
#if defined(__aarch64__) #if defined(__aarch64__)
/* XXX */ #define DT_OP_NOP 0xd503201f
#define DT_OP_RET 0xd65f03c0
#define DT_OP_CALL26 0x94000000
#define DT_OP_JUMP26 0x14000000
static int static int
dt_modtext(dtrace_hdl_t *dtp, char *p, int isenabled, GElf_Rela *rela, dt_modtext(dtrace_hdl_t *dtp, char *p, int isenabled, GElf_Rela *rela,
uint32_t *off) uint32_t *off)
{ {
printf("%s:%s(%d): aarch64 not implemented\n", __FUNCTION__, __FILE__, uint32_t *ip;
__LINE__);
/*
* Ensure that the offset is aligned on an instruction boundary.
*/
if ((rela->r_offset & (sizeof (uint32_t) - 1)) != 0)
return (-1); return (-1);
/*
* We only know about some specific relocation types.
* We also recognize relocation type NONE, since that gets used for
* relocations of USDT probes, and we might be re-processing a file.
*/
if (GELF_R_TYPE(rela->r_info) != R_AARCH64_CALL26 &&
GELF_R_TYPE(rela->r_info) != R_AARCH64_JUMP26 &&
GELF_R_TYPE(rela->r_info) != R_AARCH64_NONE)
return (-1);
ip = (uint32_t *)(p + rela->r_offset);
/*
* We may have already processed this object file in an earlier linker
* invocation. Check to see if the present instruction sequence matches
* the one we would install below.
*/
if (ip[0] == DT_OP_NOP || ip[0] == DT_OP_RET)
return (0);
/*
* We only expect call instructions with a displacement of 0, or a jump
* instruction acting as a tail call.
*/
if (ip[0] != DT_OP_CALL26 && ip[0] != DT_OP_JUMP26) {
dt_dprintf("found %x instead of a call or jmp instruction at "
"%llx\n", ip[0], (u_longlong_t)rela->r_offset);
return (-1);
} }
/*
* On arm64, we do not have to differentiate between regular probes and
* is-enabled probes. Both cases are encoded as a regular branch for
* non-tail call locations, and a jump for tail call locations. Calls
* are to be converted into a no-op whereas jumps should become a
* return.
*/
if (ip[0] == DT_OP_CALL26)
ip[0] = DT_OP_NOP;
else
ip[0] = DT_OP_RET;
return (0);
}
#elif defined(__arm__) #elif defined(__arm__)
/* XXX */ /* XXX */
static int static int
dt_modtext(dtrace_hdl_t *dtp, char *p, int isenabled, GElf_Rela *rela, dt_modtext(dtrace_hdl_t *dtp, char *p, int isenabled, GElf_Rela *rela,
uint32_t *off) uint32_t *off)
{ {
printf("%s:%s(%d): arm not implemented\n", __FUNCTION__, __FILE__, printf("%s:%s(%d): arm not implemented\n", __FUNCTION__, __FILE__,
__LINE__); __LINE__);
▲ Show 20 Lines • Show All 427 Lines • ▼ Show 20 Lines
#if defined(__mips__) #if defined(__mips__)
emachine1 = emachine2 = EM_MIPS; emachine1 = emachine2 = EM_MIPS;
#elif defined(__powerpc__) #elif defined(__powerpc__)
emachine1 = emachine2 = EM_PPC64; emachine1 = emachine2 = EM_PPC64;
#elif defined(__sparc) #elif defined(__sparc)
emachine1 = emachine2 = EM_SPARCV9; emachine1 = emachine2 = EM_SPARCV9;
#elif defined(__i386) || defined(__amd64) #elif defined(__i386) || defined(__amd64)
emachine1 = emachine2 = EM_AMD64; emachine1 = emachine2 = EM_AMD64;
#elif defined(__aarch64__)
emachine1 = emachine2 = EM_AARCH64;
#endif #endif
symsize = sizeof (Elf64_Sym); symsize = sizeof (Elf64_Sym);
} else { } else {
eclass = ELFCLASS32; eclass = ELFCLASS32;
#if defined(__arm__) #if defined(__arm__)
emachine1 = emachine2 = EM_ARM; emachine1 = emachine2 = EM_ARM;
#elif defined(__mips__) #elif defined(__mips__)
emachine1 = emachine2 = EM_MIPS; emachine1 = emachine2 = EM_MIPS;
▲ Show 20 Lines • Show All 700 Lines • Show Last 20 Lines