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authorbellard <bellard@c046a42c-6fe2-441c-8c8c-71466251a162>2005-07-02 14:31:34 +0000
committerbellard <bellard@c046a42c-6fe2-441c-8c8c-71466251a162>2005-07-02 14:31:34 +0000
commit3475187dd814be9b27c4632b59c1e3c76d966d63 (patch)
treed9936e5d6491dfd61627ab5c0134eb8910caa98d /hw/elf_ops.h
parent8979b2277d92d0acd0fd3be523a7515f86f79bec (diff)
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sparc64 marge (Blue Swirl)
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1462 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'hw/elf_ops.h')
-rw-r--r--hw/elf_ops.h218
1 files changed, 218 insertions, 0 deletions
diff --git a/hw/elf_ops.h b/hw/elf_ops.h
new file mode 100644
index 0000000..1f3232d
--- /dev/null
+++ b/hw/elf_ops.h
@@ -0,0 +1,218 @@
+#ifdef BSWAP_NEEDED
+static void glue(bswap_ehdr, SZ)(struct elfhdr *ehdr)
+{
+ bswap16s(&ehdr->e_type); /* Object file type */
+ bswap16s(&ehdr->e_machine); /* Architecture */
+ bswap32s(&ehdr->e_version); /* Object file version */
+ bswapSZs(&ehdr->e_entry); /* Entry point virtual address */
+ bswapSZs(&ehdr->e_phoff); /* Program header table file offset */
+ bswapSZs(&ehdr->e_shoff); /* Section header table file offset */
+ bswap32s(&ehdr->e_flags); /* Processor-specific flags */
+ bswap16s(&ehdr->e_ehsize); /* ELF header size in bytes */
+ bswap16s(&ehdr->e_phentsize); /* Program header table entry size */
+ bswap16s(&ehdr->e_phnum); /* Program header table entry count */
+ bswap16s(&ehdr->e_shentsize); /* Section header table entry size */
+ bswap16s(&ehdr->e_shnum); /* Section header table entry count */
+ bswap16s(&ehdr->e_shstrndx); /* Section header string table index */
+}
+
+static void glue(bswap_phdr, SZ)(struct elf_phdr *phdr)
+{
+ bswap32s(&phdr->p_type); /* Segment type */
+ bswapSZs(&phdr->p_offset); /* Segment file offset */
+ bswapSZs(&phdr->p_vaddr); /* Segment virtual address */
+ bswapSZs(&phdr->p_paddr); /* Segment physical address */
+ bswapSZs(&phdr->p_filesz); /* Segment size in file */
+ bswapSZs(&phdr->p_memsz); /* Segment size in memory */
+ bswap32s(&phdr->p_flags); /* Segment flags */
+ bswapSZs(&phdr->p_align); /* Segment alignment */
+}
+
+static void glue(bswap_shdr, SZ)(struct elf_shdr *shdr)
+{
+ bswap32s(&shdr->sh_name);
+ bswap32s(&shdr->sh_type);
+ bswapSZs(&shdr->sh_flags);
+ bswapSZs(&shdr->sh_addr);
+ bswapSZs(&shdr->sh_offset);
+ bswapSZs(&shdr->sh_size);
+ bswap32s(&shdr->sh_link);
+ bswap32s(&shdr->sh_info);
+ bswapSZs(&shdr->sh_addralign);
+ bswapSZs(&shdr->sh_entsize);
+}
+
+static void glue(bswap_sym, SZ)(struct elf_sym *sym)
+{
+ bswap32s(&sym->st_name);
+ bswapSZs(&sym->st_value);
+ bswapSZs(&sym->st_size);
+ bswap16s(&sym->st_shndx);
+}
+#endif
+
+static int glue(find_phdr, SZ)(struct elfhdr *ehdr, int fd, struct elf_phdr *phdr, elf_word type)
+{
+ int i, retval;
+
+ retval = lseek(fd, ehdr->e_phoff, SEEK_SET);
+ if (retval < 0)
+ return -1;
+
+ for (i = 0; i < ehdr->e_phnum; i++) {
+ retval = read(fd, phdr, sizeof(*phdr));
+ if (retval < 0)
+ return -1;
+ glue(bswap_phdr, SZ)(phdr);
+ if (phdr->p_type == type)
+ return 0;
+ }
+ return -1;
+}
+
+static void * glue(find_shdr, SZ)(struct elfhdr *ehdr, int fd, struct elf_shdr *shdr, elf_word type)
+{
+ int i, retval;
+
+ retval = lseek(fd, ehdr->e_shoff, SEEK_SET);
+ if (retval < 0)
+ return NULL;
+
+ for (i = 0; i < ehdr->e_shnum; i++) {
+ retval = read(fd, shdr, sizeof(*shdr));
+ if (retval < 0)
+ return NULL;
+ glue(bswap_shdr, SZ)(shdr);
+ if (shdr->sh_type == type)
+ return qemu_malloc(shdr->sh_size);
+ }
+ return NULL;
+}
+
+static void * glue(find_strtab, SZ)(struct elfhdr *ehdr, int fd, struct elf_shdr *shdr, struct elf_shdr *symtab)
+{
+ int retval;
+
+ retval = lseek(fd, ehdr->e_shoff + sizeof(struct elf_shdr) * symtab->sh_link, SEEK_SET);
+ if (retval < 0)
+ return NULL;
+
+ retval = read(fd, shdr, sizeof(*shdr));
+ if (retval < 0)
+ return NULL;
+ glue(bswap_shdr, SZ)(shdr);
+ if (shdr->sh_type == SHT_STRTAB)
+ return qemu_malloc(shdr->sh_size);;
+ return NULL;
+}
+
+static int glue(read_program, SZ)(int fd, struct elf_phdr *phdr, void *dst, elf_word entry)
+{
+ int retval;
+ retval = lseek(fd, phdr->p_offset + entry - phdr->p_vaddr, SEEK_SET);
+ if (retval < 0)
+ return -1;
+ return read(fd, dst, phdr->p_filesz);
+}
+
+static int glue(read_section, SZ)(int fd, struct elf_shdr *s, void *dst)
+{
+ int retval;
+
+ retval = lseek(fd, s->sh_offset, SEEK_SET);
+ if (retval < 0)
+ return -1;
+ retval = read(fd, dst, s->sh_size);
+ if (retval < 0)
+ return -1;
+ return 0;
+}
+
+static void * glue(process_section, SZ)(struct elfhdr *ehdr, int fd, struct elf_shdr *shdr, elf_word type)
+{
+ void *dst;
+
+ dst = glue(find_shdr, SZ)(ehdr, fd, shdr, type);
+ if (!dst)
+ goto error;
+
+ if (glue(read_section, SZ)(fd, shdr, dst))
+ goto error;
+ return dst;
+ error:
+ qemu_free(dst);
+ return NULL;
+}
+
+static void * glue(process_strtab, SZ)(struct elfhdr *ehdr, int fd, struct elf_shdr *shdr, struct elf_shdr *symtab)
+{
+ void *dst;
+
+ dst = glue(find_strtab, SZ)(ehdr, fd, shdr, symtab);
+ if (!dst)
+ goto error;
+
+ if (glue(read_section, SZ)(fd, shdr, dst))
+ goto error;
+ return dst;
+ error:
+ qemu_free(dst);
+ return NULL;
+}
+
+static void glue(load_symbols, SZ)(struct elfhdr *ehdr, int fd)
+{
+ struct elf_shdr symtab, strtab;
+ struct elf_sym *syms;
+#if (SZ == 64)
+ struct elf32_sym *syms32;
+#endif
+ struct syminfo *s;
+ int nsyms, i;
+ char *str;
+
+ /* Symbol table */
+ syms = glue(process_section, SZ)(ehdr, fd, &symtab, SHT_SYMTAB);
+ if (!syms)
+ return;
+
+ nsyms = symtab.sh_size / sizeof(struct elf_sym);
+#if (SZ == 64)
+ syms32 = qemu_mallocz(nsyms * sizeof(struct elf32_sym));
+#endif
+ for (i = 0; i < nsyms; i++) {
+ glue(bswap_sym, SZ)(&syms[i]);
+#if (SZ == 64)
+ syms32[i].st_name = syms[i].st_name;
+ syms32[i].st_info = syms[i].st_info;
+ syms32[i].st_other = syms[i].st_other;
+ syms32[i].st_shndx = syms[i].st_shndx;
+ syms32[i].st_value = syms[i].st_value & 0xffffffff;
+ syms32[i].st_size = syms[i].st_size & 0xffffffff;
+#endif
+ }
+ /* String table */
+ str = glue(process_strtab, SZ)(ehdr, fd, &strtab, &symtab);
+ if (!str)
+ goto error_freesyms;
+
+ /* Commit */
+ s = qemu_mallocz(sizeof(*s));
+#if (SZ == 64)
+ s->disas_symtab = syms32;
+ qemu_free(syms);
+#else
+ s->disas_symtab = syms;
+#endif
+ s->disas_num_syms = nsyms;
+ s->disas_strtab = str;
+ s->next = syminfos;
+ syminfos = s;
+ return;
+ error_freesyms:
+#if (SZ == 64)
+ qemu_free(syms32);
+#endif
+ qemu_free(syms);
+ return;
+}