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Diffstat (limited to 'hw/magic-load.c')
-rw-r--r--hw/magic-load.c282
1 files changed, 70 insertions, 212 deletions
diff --git a/hw/magic-load.c b/hw/magic-load.c
index 713343a758..63942c647b 100644
--- a/hw/magic-load.c
+++ b/hw/magic-load.c
@@ -56,213 +56,49 @@ static void bswap_ahdr(struct exec *e)
#include "elf.h"
-#ifdef BSWAP_NEEDED
-static void bswap_ehdr(Elf32_Ehdr *ehdr)
-{
- bswap16s(&ehdr->e_type); /* Object file type */
- bswap16s(&ehdr->e_machine); /* Architecture */
- bswap32s(&ehdr->e_version); /* Object file version */
- bswap32s(&ehdr->e_entry); /* Entry point virtual address */
- bswap32s(&ehdr->e_phoff); /* Program header table file offset */
- bswap32s(&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 bswap_phdr(Elf32_Phdr *phdr)
-{
- bswap32s(&phdr->p_type); /* Segment type */
- bswap32s(&phdr->p_offset); /* Segment file offset */
- bswap32s(&phdr->p_vaddr); /* Segment virtual address */
- bswap32s(&phdr->p_paddr); /* Segment physical address */
- bswap32s(&phdr->p_filesz); /* Segment size in file */
- bswap32s(&phdr->p_memsz); /* Segment size in memory */
- bswap32s(&phdr->p_flags); /* Segment flags */
- bswap32s(&phdr->p_align); /* Segment alignment */
-}
-
-static void bswap_shdr(Elf32_Shdr *shdr)
-{
- bswap32s(&shdr->sh_name);
- bswap32s(&shdr->sh_type);
- bswap32s(&shdr->sh_flags);
- bswap32s(&shdr->sh_addr);
- bswap32s(&shdr->sh_offset);
- bswap32s(&shdr->sh_size);
- bswap32s(&shdr->sh_link);
- bswap32s(&shdr->sh_info);
- bswap32s(&shdr->sh_addralign);
- bswap32s(&shdr->sh_entsize);
-}
-
-static void bswap_sym(Elf32_Sym *sym)
-{
- bswap32s(&sym->st_name);
- bswap32s(&sym->st_value);
- bswap32s(&sym->st_size);
- bswap16s(&sym->st_shndx);
-}
-#else
-#define bswap_ehdr(e) do { } while (0)
-#define bswap_phdr(e) do { } while (0)
-#define bswap_shdr(e) do { } while (0)
-#define bswap_sym(e) do { } while (0)
+#ifndef BSWAP_NEEDED
+#define bswap_ehdr32(e) do { } while (0)
+#define bswap_phdr32(e) do { } while (0)
+#define bswap_shdr32(e) do { } while (0)
+#define bswap_sym32(e) do { } while (0)
+#ifdef TARGET_SPARC64
+#define bswap_ehdr64(e) do { } while (0)
+#define bswap_phdr64(e) do { } while (0)
+#define bswap_shdr64(e) do { } while (0)
+#define bswap_sym64(e) do { } while (0)
+#endif
#endif
-static int find_phdr(struct elfhdr *ehdr, int fd, struct elf_phdr *phdr, uint32_t 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;
- bswap_phdr(phdr);
- if (phdr->p_type == type)
- return 0;
- }
- return -1;
-}
-
-static void *find_shdr(struct elfhdr *ehdr, int fd, struct elf_shdr *shdr, uint32_t 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;
- bswap_shdr(shdr);
- if (shdr->sh_type == type)
- return qemu_malloc(shdr->sh_size);
- }
- return NULL;
-}
-
-static void *find_strtab(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;
- bswap_shdr(shdr);
- if (shdr->sh_type == SHT_STRTAB)
- return qemu_malloc(shdr->sh_size);;
- return NULL;
-}
-
-static int read_program(int fd, struct elf_phdr *phdr, void *dst, uint32_t 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 read_section(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 *process_section(struct elfhdr *ehdr, int fd, struct elf_shdr *shdr, uint32_t type)
-{
- void *dst;
-
- dst = find_shdr(ehdr, fd, shdr, type);
- if (!dst)
- goto error;
-
- if (read_section(fd, shdr, dst))
- goto error;
- return dst;
- error:
- qemu_free(dst);
- return NULL;
-}
-
-static void *process_strtab(struct elfhdr *ehdr, int fd, struct elf_shdr *shdr, struct elf_shdr *symtab)
-{
- void *dst;
-
- dst = find_strtab(ehdr, fd, shdr, symtab);
- if (!dst)
- goto error;
-
- if (read_section(fd, shdr, dst))
- goto error;
- return dst;
- error:
- qemu_free(dst);
- return NULL;
-}
-
-static void load_symbols(struct elfhdr *ehdr, int fd)
-{
- struct elf_shdr symtab, strtab;
- struct elf_sym *syms;
- struct syminfo *s;
- int nsyms, i;
- char *str;
-
- /* Symbol table */
- syms = process_section(ehdr, fd, &symtab, SHT_SYMTAB);
- if (!syms)
- return;
-
- nsyms = symtab.sh_size / sizeof(struct elf_sym);
- for (i = 0; i < nsyms; i++)
- bswap_sym(&syms[i]);
-
- /* String table */
- str = process_strtab(ehdr, fd, &strtab, &symtab);
- if (!str)
- goto error_freesyms;
-
- /* Commit */
- s = qemu_mallocz(sizeof(*s));
- s->disas_symtab = syms;
- s->disas_num_syms = nsyms;
- s->disas_strtab = str;
- s->next = syminfos;
- syminfos = s;
- return;
- error_freesyms:
- qemu_free(syms);
- return;
-}
+#define SZ 32
+#define elf_word uint32_t
+#define bswapSZs bswap32s
+#include "elf_ops.h"
+
+#ifdef TARGET_SPARC64
+#undef elfhdr
+#undef elf_phdr
+#undef elf_shdr
+#undef elf_sym
+#undef elf_note
+#undef elf_word
+#undef bswapSZs
+#undef SZ
+#define elfhdr elf64_hdr
+#define elf_phdr elf64_phdr
+#define elf_note elf64_note
+#define elf_shdr elf64_shdr
+#define elf_sym elf64_sym
+#define elf_word uint64_t
+#define bswapSZs bswap64s
+#define SZ 64
+#include "elf_ops.h"
+#endif
int load_elf(const char *filename, uint8_t *addr)
{
- struct elfhdr ehdr;
- struct elf_phdr phdr;
+ struct elf32_hdr ehdr;
int retval, fd;
+ Elf32_Half machine;
fd = open(filename, O_RDONLY | O_BINARY);
if (fd < 0)
@@ -272,21 +108,43 @@ int load_elf(const char *filename, uint8_t *addr)
if (retval < 0)
goto error;
- bswap_ehdr(&ehdr);
-
if (ehdr.e_ident[0] != 0x7f || ehdr.e_ident[1] != 'E'
- || ehdr.e_ident[2] != 'L' || ehdr.e_ident[3] != 'F'
- || (ehdr.e_machine != EM_SPARC
- && ehdr.e_machine != EM_SPARC32PLUS))
+ || ehdr.e_ident[2] != 'L' || ehdr.e_ident[3] != 'F')
goto error;
+ machine = tswap16(ehdr.e_machine);
+ if (machine == EM_SPARC || machine == EM_SPARC32PLUS) {
+ struct elf32_phdr phdr;
- if (find_phdr(&ehdr, fd, &phdr, PT_LOAD))
- goto error;
- retval = read_program(fd, &phdr, addr, ehdr.e_entry);
- if (retval < 0)
- goto error;
+ bswap_ehdr32(&ehdr);
- load_symbols(&ehdr, fd);
+ if (find_phdr32(&ehdr, fd, &phdr, PT_LOAD))
+ goto error;
+ retval = read_program32(fd, &phdr, addr, ehdr.e_entry);
+ if (retval < 0)
+ goto error;
+ load_symbols32(&ehdr, fd);
+ }
+#ifdef TARGET_SPARC64
+ else if (machine == EM_SPARCV9) {
+ struct elf64_hdr ehdr64;
+ struct elf64_phdr phdr;
+
+ lseek(fd, 0, SEEK_SET);
+
+ retval = read(fd, &ehdr64, sizeof(ehdr64));
+ if (retval < 0)
+ goto error;
+
+ bswap_ehdr64(&ehdr64);
+
+ if (find_phdr64(&ehdr64, fd, &phdr, PT_LOAD))
+ goto error;
+ retval = read_program64(fd, &phdr, addr, ehdr64.e_entry);
+ if (retval < 0)
+ goto error;
+ load_symbols64(&ehdr64, fd);
+ }
+#endif
close(fd);
return retval;
generated by cgit v1.2.1 (git 2.18.0) at 2024-05-25 05:06:26 +0000