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Merge branch 'gnu' into sync

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This commit is contained in:
David Michael 2017-04-27 12:05:22 -07:00
commit f89e1cf69a
63 changed files with 884 additions and 310 deletions
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9
grub-core/kern/arm/dl.c
View file

@ -173,6 +173,8 @@ grub_arch_dl_relocate_symbols (grub_dl_t mod, void *ehdr,
sym_addr += grub_arm_thm_call_get_offset ((grub_uint16_t *) target);
grub_dprintf ("dl", " sym_addr = 0x%08x\n", sym_addr);
if (ELF_ST_TYPE (sym->st_info) != STT_FUNC)
sym_addr |= 1;
offset = sym_addr - (grub_uint32_t) target;
@ -227,13 +229,16 @@ grub_arch_dl_relocate_symbols (grub_dl_t mod, void *ehdr,
sym_addr += grub_arm_thm_jump19_get_offset ((grub_uint16_t *) target);
if (ELF_ST_TYPE (sym->st_info) != STT_FUNC)
sym_addr |= 1;
offset = sym_addr - (grub_uint32_t) target;
if (!grub_arm_thm_jump19_check_offset (offset)
|| !(sym_addr & 1))
{
struct trampoline_thumb *tp = mod->gotptr;
mod->gotptr = tp + 1;
struct trampoline_thumb *tp = mod->trampptr;
mod->trampptr = tp + 1;
grub_memcpy (tp->template, thumb_template, sizeof (tp->template));
tp->neg_addr = -sym_addr - 4;
offset = ((grub_uint8_t *) tp - (grub_uint8_t *) target - 4) | 1;

96
grub-core/kern/arm64/dl.c
View file

@ -25,14 +25,9 @@
#include <grub/i18n.h>
#include <grub/cpu/reloc.h>
struct trampoline
{
#define LDR 0x58000050
#define BR 0xd61f0200
grub_uint32_t ldr; /* ldr x16, 8 */
grub_uint32_t br; /* br x16 */
grub_uint64_t addr;
};
/*
* Check if EHDR is a valid ELF header.
@ -53,42 +48,6 @@ grub_arch_dl_check_header (void *ehdr)
#pragma GCC diagnostic ignored "-Wcast-align"
grub_err_t
grub_arch_dl_get_tramp_got_size (const void *ehdr, grub_size_t *tramp,
grub_size_t *got)
{
const Elf_Ehdr *e = ehdr;
const Elf_Shdr *s;
unsigned i;
*tramp = 0;
*got = 0;
for (i = 0, s = (const Elf_Shdr *) ((grub_addr_t) e + e->e_shoff);
i < e->e_shnum;
i++, s = (const Elf_Shdr *) ((grub_addr_t) s + e->e_shentsize))
if (s->sh_type == SHT_REL || s->sh_type == SHT_RELA)
{
const Elf_Rel *rel, *max;
for (rel = (const Elf_Rel *) ((grub_addr_t) e + s->sh_offset),
max = rel + s->sh_size / s->sh_entsize;
rel < max;
rel = (const Elf_Rel *) ((grub_addr_t) rel + s->sh_entsize))
switch (ELF_R_TYPE (rel->r_info))
{
case R_AARCH64_CALL26:
case R_AARCH64_JUMP26:
{
*tramp += sizeof (struct trampoline);
break;
}
}
}
return GRUB_ERR_NONE;
}
/*
* Unified function for both REL and RELA
*/
@ -97,6 +56,7 @@ grub_arch_dl_relocate_symbols (grub_dl_t mod, void *ehdr,
Elf_Shdr *s, grub_dl_segment_t seg)
{
Elf_Rel *rel, *max;
unsigned unmatched_adr_got_page = 0;
for (rel = (Elf_Rel *) ((char *) ehdr + s->sh_offset),
max = (Elf_Rel *) ((char *) rel + s->sh_size);
@ -145,7 +105,7 @@ grub_arch_dl_relocate_symbols (grub_dl_t mod, void *ehdr,
if (!grub_arm_64_check_xxxx26_offset (offset))
{
struct trampoline *tp = mod->trampptr;
struct grub_arm64_trampoline *tp = mod->trampptr;
mod->trampptr = tp + 1;
tp->ldr = LDR;
tp->br = BR;
@ -160,6 +120,56 @@ grub_arch_dl_relocate_symbols (grub_dl_t mod, void *ehdr,
grub_arm64_set_xxxx26_offset (place, offset);
}
break;
case R_AARCH64_PREL32:
{
grub_int64_t value;
Elf64_Word *addr32 = place;
value = ((grub_int32_t) *addr32) + sym_addr -
(Elf64_Xword) (grub_addr_t) seg->addr - rel->r_offset;
if (value != (grub_int32_t) value)
return grub_error (GRUB_ERR_BAD_MODULE, "relocation out of range");
grub_dprintf("dl", " reloc_prel32 %p => 0x%016llx\n",
place, (unsigned long long) sym_addr);
*addr32 = value;
}
break;
case R_AARCH64_ADR_GOT_PAGE:
{
grub_uint64_t *gp = mod->gotptr;
Elf_Rela *rel2;
grub_int64_t gpoffset = ((grub_uint64_t) gp & ~0xfffULL) - (((grub_uint64_t) place) & ~0xfffULL);
*gp = (grub_uint64_t) sym_addr;
mod->gotptr = gp + 1;
unmatched_adr_got_page++;
grub_dprintf("dl", " reloc_got %p => 0x%016llx (0x%016llx)\n",
place, (unsigned long long) sym_addr, (unsigned long long) gp);
if (!grub_arm64_check_hi21_signed (gpoffset))
return grub_error (GRUB_ERR_BAD_MODULE,
"HI21 out of range");
grub_arm64_set_hi21(place, gpoffset);
for (rel2 = (Elf_Rela *) ((char *) rel + s->sh_entsize);
rel2 < (Elf_Rela *) max;
rel2 = (Elf_Rela *) ((char *) rel2 + s->sh_entsize))
if (ELF_R_SYM (rel2->r_info)
== ELF_R_SYM (rel->r_info)
&& ((Elf_Rela *) rel)->r_addend == rel2->r_addend
&& ELF_R_TYPE (rel2->r_info) == R_AARCH64_LD64_GOT_LO12_NC)
{
grub_arm64_set_abs_lo12_ldst64 ((void *) ((grub_addr_t) seg->addr + rel2->r_offset),
(grub_uint64_t)gp);
break;
}
if (rel2 >= (Elf_Rela *) max)
return grub_error (GRUB_ERR_BAD_MODULE,
"ADR_GOT_PAGE without matching LD64_GOT_LO12_NC");
}
break;
case R_AARCH64_LD64_GOT_LO12_NC:
if (unmatched_adr_got_page == 0)
return grub_error (GRUB_ERR_BAD_MODULE,
"LD64_GOT_LO12_NC without matching ADR_GOT_PAGE");
unmatched_adr_got_page--;
break;
case R_AARCH64_ADR_PREL_PG_HI21:
{
grub_int64_t offset = (sym_addr & ~0xfffULL) - (((grub_uint64_t) place) & ~0xfffULL);

39
grub-core/kern/arm64/dl_helper.c
View file

@ -93,3 +93,42 @@ grub_arm64_set_abs_lo12_ldst64 (grub_uint32_t *place, grub_int64_t target)
*place &= insmask;
*place |= grub_cpu_to_le32 (target << 7) & ~insmask;
}
#pragma GCC diagnostic ignored "-Wcast-align"
grub_err_t
grub_arm64_dl_get_tramp_got_size (const void *ehdr, grub_size_t *tramp,
grub_size_t *got)
{
const Elf64_Ehdr *e = ehdr;
const Elf64_Shdr *s;
unsigned i;
*tramp = 0;
*got = 0;
for (i = 0, s = (Elf64_Shdr *) ((char *) e + grub_le_to_cpu64 (e->e_shoff));
i < grub_le_to_cpu16 (e->e_shnum);
i++, s = (Elf64_Shdr *) ((char *) s + grub_le_to_cpu16 (e->e_shentsize)))
if (s->sh_type == grub_cpu_to_le32_compile_time (SHT_REL)
|| s->sh_type == grub_cpu_to_le32_compile_time (SHT_RELA))
{
const Elf64_Rela *rel, *max;
for (rel = (Elf64_Rela *) ((char *) e + grub_le_to_cpu64 (s->sh_offset)),
max = (const Elf64_Rela *) ((char *) rel + grub_le_to_cpu64 (s->sh_size));
rel < max; rel = (const Elf64_Rela *) ((char *) rel + grub_le_to_cpu64 (s->sh_entsize)))
switch (ELF64_R_TYPE (rel->r_info))
{
case R_AARCH64_CALL26:
case R_AARCH64_JUMP26:
*tramp += sizeof (struct grub_arm64_trampoline);
break;
case R_AARCH64_ADR_GOT_PAGE:
*got += 8;
break;
}
}
return GRUB_ERR_NONE;
}

3
grub-core/kern/efi/efi.c
View file

@ -394,6 +394,9 @@ grub_efi_get_filename (grub_efi_device_path_t *dp0)
len = ((GRUB_EFI_DEVICE_PATH_LENGTH (dp) - 4)
/ sizeof (grub_efi_char16_t));
fp = (grub_efi_file_path_device_path_t *) dp;
/* According to EFI spec Path Name is NULL terminated */
while (len > 0 && fp->path_name[len - 1] == 0)
len--;
p = (char *) grub_utf16_to_utf8 ((unsigned char *) p, fp->path_name, len);
}

1
grub-core/kern/emu/main.c
View file

@ -63,6 +63,7 @@ void
grub_reboot (void)
{
longjmp (main_env, 1);
grub_fatal ("longjmp failed");
}
void

4
grub-core/kern/ia64/dl.c
View file

@ -104,6 +104,9 @@ grub_arch_dl_relocate_symbols (grub_dl_t mod, void *ehdr,
case R_IA64_PCREL64LSB:
*(grub_uint64_t *) addr += value - addr;
break;
case R_IA64_GPREL64I:
grub_ia64_set_immu64 (addr, value - (grub_addr_t) mod->base);
break;
case R_IA64_GPREL22:
if ((value - (grub_addr_t) mod->base) & ~MASK20)
return grub_error (GRUB_ERR_BAD_MODULE,
@ -116,6 +119,7 @@ grub_arch_dl_relocate_symbols (grub_dl_t mod, void *ehdr,
case R_IA64_LTOFF22:
if (ELF_ST_TYPE (sym->st_info) == STT_FUNC)
value = *(grub_uint64_t *) sym->st_value + rel->r_addend;
/* Fallthrough. */
case R_IA64_LTOFF_FPTR22:
{
grub_uint64_t *gpptr = mod->gotptr;

40
grub-core/kern/ia64/dl_helper.c
View file

@ -30,6 +30,40 @@
#define MASK20 ((1 << 20) - 1)
#define MASK3 (~(grub_addr_t) 3)
void
grub_ia64_set_immu64 (grub_addr_t addr, grub_uint64_t val)
{
/* Copied from binutils. */
grub_uint64_t *ptr = ((grub_uint64_t *) (addr & MASK3));
grub_uint64_t t0, t1;
t0 = grub_le_to_cpu64 (ptr[0]);
t1 = grub_le_to_cpu64 (ptr[1]);
/* tmpl/s: bits 0.. 5 in t0
slot 0: bits 5..45 in t0
slot 1: bits 46..63 in t0, bits 0..22 in t1
slot 2: bits 23..63 in t1 */
/* First, clear the bits that form the 64 bit constant. */
t0 &= ~(0x3ffffLL << 46);
t1 &= ~(0x7fffffLL
| (( (0x07fLL << 13) | (0x1ffLL << 27)
| (0x01fLL << 22) | (0x001LL << 21)
| (0x001LL << 36)) << 23));
t0 |= ((val >> 22) & 0x03ffffLL) << 46; /* 18 lsbs of imm41 */
t1 |= ((val >> 40) & 0x7fffffLL) << 0; /* 23 msbs of imm41 */
t1 |= ( (((val >> 0) & 0x07f) << 13) /* imm7b */
| (((val >> 7) & 0x1ff) << 27) /* imm9d */
| (((val >> 16) & 0x01f) << 22) /* imm5c */
| (((val >> 21) & 0x001) << 21) /* ic */
| (((val >> 63) & 0x001) << 36)) << 23; /* i */
ptr[0] = t0;
ptr[1] = t1;
}
void
grub_ia64_add_value_to_slot_20b (grub_addr_t addr, grub_uint32_t value)
{
@ -182,11 +216,11 @@ grub_ia64_dl_get_tramp_got_size (const void *ehdr, grub_size_t *tramp,
i++, s = (Elf64_Shdr *) ((char *) s + grub_le_to_cpu16 (e->e_shentsize)))
if (s->sh_type == grub_cpu_to_le32_compile_time (SHT_RELA))
{
Elf64_Rela *rel, *max;
const Elf64_Rela *rel, *max;
for (rel = (Elf64_Rela *) ((char *) e + grub_le_to_cpu64 (s->sh_offset)),
max = rel + grub_le_to_cpu64 (s->sh_size) / grub_le_to_cpu64 (s->sh_entsize);
rel < max; rel++)
max = (const Elf64_Rela *) ((char *) rel + grub_le_to_cpu64 (s->sh_size));
rel < max; rel = (const Elf64_Rela *) ((char *) rel + grub_le_to_cpu64 (s->sh_entsize)))
switch (ELF64_R_TYPE (grub_le_to_cpu64 (rel->r_info)))
{
case R_IA64_PCREL21B:

1
grub-core/kern/mips/dl.c
View file

@ -236,6 +236,7 @@ grub_arch_dl_relocate_symbols (grub_dl_t mod, void *ehdr,
sym_value &= 0xffff0000;
*(grub_uint16_t *) addr = 0;
}
/* Fallthrough. */
case R_MIPS_CALL16:
{
grub_uint32_t *gpptr = mod->gotptr;

1
grub-core/kern/sparc64/dl.c
View file

@ -159,6 +159,7 @@ grub_arch_dl_relocate_symbols (grub_dl_t mod, void *ehdr,
if (value >> 32)
return grub_error (GRUB_ERR_BAD_MODULE,
"address out of 32 bits range");
/* Fallthrough. */
case R_SPARC_LM22:
*addr = (*addr & 0xFFC00000) | ((value >> 10) & 0x3FFFFF);
break;