diff --git a/kern/disk.c b/kern/disk.c index e463626fb..7fbe2e6a6 100644 --- a/kern/disk.c +++ b/kern/disk.c @@ -267,12 +267,15 @@ grub_disk_open (const char *name) for (dev = grub_disk_dev_list; dev; dev = dev->next) { + grub_printf ("open: %p\n", dev->open); + grub_getkey (); if ((dev->open) (raw, disk) == GRUB_ERR_NONE) break; else if (grub_errno == GRUB_ERR_UNKNOWN_DEVICE) grub_errno = GRUB_ERR_NONE; else goto fail; + grub_printf ("survived\n"); } if (! dev) diff --git a/kern/mips/dl.c b/kern/mips/dl.c index f8b11a3eb..83af37b75 100644 --- a/kern/mips/dl.c +++ b/kern/mips/dl.c @@ -22,6 +22,8 @@ #include #include #include +#include +#include /* Check if EHDR is a valid ELF header. */ grub_err_t @@ -52,6 +54,9 @@ grub_arch_dl_relocate_symbols (grub_dl_t mod, void *ehdr) Elf_Shdr *s; Elf_Word entsize; unsigned i; + grub_size_t gp_size = 0; + /* FIXME: suboptimal. */ + grub_uint32_t *gp, *gpptr; /* Find a symbol table. */ for (i = 0, s = (Elf_Shdr *) ((char *) e + e->e_shoff); @@ -65,6 +70,45 @@ grub_arch_dl_relocate_symbols (grub_dl_t mod, void *ehdr) entsize = s->sh_entsize; + for (i = 0, s = (Elf_Shdr *) ((char *) e + e->e_shoff); + i < e->e_shnum; + i++, s = (Elf_Shdr *) ((char *) s + e->e_shentsize)) + if (s->sh_type == SHT_REL) + { + grub_dl_segment_t seg; + + /* Find the target segment. */ + for (seg = mod->segment; seg; seg = seg->next) + if (seg->section == s->sh_info) + break; + + if (seg) + { + Elf_Rel *rel, *max; + + for (rel = (Elf_Rel *) ((char *) e + s->sh_offset), + max = rel + s->sh_size / s->sh_entsize; + rel < max; + rel++) + switch (ELF_R_TYPE (rel->r_info)) + { + case R_MIPS_GOT16: + case R_MIPS_CALL16: + case R_MIPS_GPREL32: + gp_size += 4; + break; + } + } + } + + if (gp_size > 0x08000) + return grub_error (GRUB_ERR_OUT_OF_RANGE, "__gnu_local_gp is too big\n"); + + gpptr = gp = grub_malloc (gp_size); + if (!gp) + return grub_errno; + grub_printf ("gp=%p\n", gp); + for (i = 0, s = (Elf_Shdr *) ((char *) e + e->e_shoff); i < e->e_shnum; i++, s = (Elf_Shdr *) ((char *) s + e->e_shentsize)) @@ -96,19 +140,62 @@ grub_arch_dl_relocate_symbols (grub_dl_t mod, void *ehdr) addr = (Elf_Word *) ((char *) seg->addr + rel->r_offset); sym = (Elf_Sym *) ((char *) mod->symtab + entsize * ELF_R_SYM (rel->r_info)); + if (sym->st_value == (grub_addr_t) &__gnu_local_gp) + sym->st_value = (grub_addr_t) gp; switch (ELF_R_TYPE (rel->r_info)) { -#if 0 - case R_386_32: - *addr += sym->st_value; + case R_MIPS_HI16: + { + grub_uint32_t value; + + /* Handle partner lo16 relocation. Lower part is + treated as signed. Hence add 0x8000 to compensate. + */ + value = (*(grub_uint16_t *) addr << 16) + + sym->st_value + 0x8000; + if (rel + 1 < max && ELF_R_SYM (rel[1].r_info) + == ELF_R_SYM (rel[0].r_info) + && ELF_R_TYPE (rel[1].r_info) == R_MIPS_LO16) + value += *(grub_uint16_t *) + ((char *) seg->addr + rel[1].r_offset); + *(grub_uint16_t *) addr += (value >> 16) & 0xffff; + } break; - - case R_386_PC32: - *addr += (sym->st_value - (Elf_Word) seg->addr - - rel->r_offset); + case R_MIPS_LO16: + *(grub_uint16_t *) addr += (sym->st_value) & 0xffff; + break; + case R_MIPS_32: + *(grub_uint32_t *) addr = sym->st_value; + break; + case R_MIPS_26: + { + grub_uint32_t value; + grub_uint32_t raw; + raw = (*(grub_uint32_t *) addr) & 0x3ffffff; + value = raw << 2; + value += sym->st_value; + raw = (value >> 2) & 0x3ffffff; + + *(grub_uint32_t *) addr = + raw | ((*(grub_uint32_t *) addr) & 0xfc000000); + } + break; + case R_MIPS_GOT16: + case R_MIPS_CALL16: + /* FIXME: reuse*/ + *gpptr = sym->st_value + *(grub_uint16_t *) addr; + *(grub_uint16_t *) addr + = sizeof (grub_uint32_t) * (gpptr - gp); + gpptr++; + break; + case R_MIPS_GPREL32: + grub_printf ("gp32\n"); + *gpptr = sym->st_value + *(grub_uint16_t *) addr; + *(grub_uint32_t *) addr + = sizeof (grub_uint32_t) * (gpptr - gp); + gpptr++; break; -#endif default: grub_printf ("Unknown relocation type %d\n", ELF_R_TYPE (rel->r_info)); diff --git a/kern/mips/qemu-r4k/init.c b/kern/mips/qemu-r4k/init.c index 269e8b6e6..f7d304313 100644 --- a/kern/mips/qemu-r4k/init.c +++ b/kern/mips/qemu-r4k/init.c @@ -24,8 +24,7 @@ grub_machine_init (void) void *tst; grub_mm_init_region ((void *) GRUB_MACHINE_MEMORY_STACK_HIGH, RAMSIZE - (GRUB_MACHINE_MEMORY_STACK_HIGH & 0x7fffffff)); - tst = grub_malloc (10); - grub_free (tst); + grub_install_get_time_ms (grub_rtc_get_time_ms); } void