net: assign maintainer for include/net.h

[oweals/u-boot.git] / cmd / elf.c

diff --git a/cmd/elf.c b/cmd/elf.c
index eafea38aed18938621ecafa4a5d3da0a13322046..d883be41931deea96e5a2be3fac3fb7ce4614ae6 100644 (file)
--- a/cmd/elf.c
+++ b/cmd/elf.c
@@ -53,10 +53,87 @@ static unsigned long load_elf64_image_phdr(unsigned long addr)
                if (phdr->p_filesz != phdr->p_memsz)
                        memset(dst + phdr->p_filesz, 0x00,
                               phdr->p_memsz - phdr->p_filesz);
-               flush_cache((unsigned long)dst, phdr->p_filesz);
+               flush_cache(rounddown((unsigned long)dst, ARCH_DMA_MINALIGN),
+                           roundup(phdr->p_memsz, ARCH_DMA_MINALIGN));
                ++phdr;
        }
 
+       if (ehdr->e_machine == EM_PPC64 && (ehdr->e_flags &
+                                           EF_PPC64_ELFV1_ABI)) {
+               /*
+                * For the 64-bit PowerPC ELF V1 ABI, e_entry is a function
+                * descriptor pointer with the first double word being the
+                * address of the entry point of the function.
+                */
+               uintptr_t addr = ehdr->e_entry;
+
+               return *(Elf64_Addr *)addr;
+       }
+
+       return ehdr->e_entry;
+}
+
+static unsigned long load_elf64_image_shdr(unsigned long addr)
+{
+       Elf64_Ehdr *ehdr; /* Elf header structure pointer */
+       Elf64_Shdr *shdr; /* Section header structure pointer */
+       unsigned char *strtab = 0; /* String table pointer */
+       unsigned char *image; /* Binary image pointer */
+       int i; /* Loop counter */
+
+       ehdr = (Elf64_Ehdr *)addr;
+
+       /* Find the section header string table for output info */
+       shdr = (Elf64_Shdr *)(addr + (ulong)ehdr->e_shoff +
+                            (ehdr->e_shstrndx * sizeof(Elf64_Shdr)));
+
+       if (shdr->sh_type == SHT_STRTAB)
+               strtab = (unsigned char *)(addr + (ulong)shdr->sh_offset);
+
+       /* Load each appropriate section */
+       for (i = 0; i < ehdr->e_shnum; ++i) {
+               shdr = (Elf64_Shdr *)(addr + (ulong)ehdr->e_shoff +
+                                    (i * sizeof(Elf64_Shdr)));
+
+               if (!(shdr->sh_flags & SHF_ALLOC) ||
+                   shdr->sh_addr == 0 || shdr->sh_size == 0) {
+                       continue;
+               }
+
+               if (strtab) {
+                       debug("%sing %s @ 0x%08lx (%ld bytes)\n",
+                             (shdr->sh_type == SHT_NOBITS) ? "Clear" : "Load",
+                              &strtab[shdr->sh_name],
+                              (unsigned long)shdr->sh_addr,
+                              (long)shdr->sh_size);
+               }
+
+               if (shdr->sh_type == SHT_NOBITS) {
+                       memset((void *)(uintptr_t)shdr->sh_addr, 0,
+                              shdr->sh_size);
+               } else {
+                       image = (unsigned char *)addr + (ulong)shdr->sh_offset;
+                       memcpy((void *)(uintptr_t)shdr->sh_addr,
+                              (const void *)image, shdr->sh_size);
+               }
+               flush_cache(rounddown(shdr->sh_addr, ARCH_DMA_MINALIGN),
+                           roundup((shdr->sh_addr + shdr->sh_size),
+                                    ARCH_DMA_MINALIGN) -
+                                   rounddown(shdr->sh_addr, ARCH_DMA_MINALIGN));
+       }
+
+       if (ehdr->e_machine == EM_PPC64 && (ehdr->e_flags &
+                                           EF_PPC64_ELFV1_ABI)) {
+               /*
+                * For the 64-bit PowerPC ELF V1 ABI, e_entry is a function
+                * descriptor pointer with the first double word being the
+                * address of the entry point of the function.
+                */
+               uintptr_t addr = ehdr->e_entry;
+
+               return *(Elf64_Addr *)addr;
+       }
+
        return ehdr->e_entry;
 }
 
@@ -91,7 +168,8 @@ static unsigned long load_elf_image_phdr(unsigned long addr)
                if (phdr->p_filesz != phdr->p_memsz)
                        memset(dst + phdr->p_filesz, 0x00,
                               phdr->p_memsz - phdr->p_filesz);
-               flush_cache((unsigned long)dst, phdr->p_filesz);
+               flush_cache(rounddown((unsigned long)dst, ARCH_DMA_MINALIGN),
+                           roundup(phdr->p_memsz, ARCH_DMA_MINALIGN));
                ++phdr;
        }
 
@@ -107,6 +185,8 @@ static unsigned long load_elf_image_shdr(unsigned long addr)
        int i; /* Loop counter */
 
        ehdr = (Elf32_Ehdr *)addr;
+       if (ehdr->e_ident[EI_CLASS] == ELFCLASS64)
+               return load_elf64_image_shdr(addr);
 
        /* Find the section header string table for output info */
        shdr = (Elf32_Shdr *)(addr + ehdr->e_shoff +
@@ -141,7 +221,10 @@ static unsigned long load_elf_image_shdr(unsigned long addr)
                        memcpy((void *)(uintptr_t)shdr->sh_addr,
                               (const void *)image, shdr->sh_size);
                }
-               flush_cache(shdr->sh_addr, shdr->sh_size);
+               flush_cache(rounddown(shdr->sh_addr, ARCH_DMA_MINALIGN),
+                           roundup((shdr->sh_addr + shdr->sh_size),
+                                   ARCH_DMA_MINALIGN) -
+                           rounddown(shdr->sh_addr, ARCH_DMA_MINALIGN));
        }
 
        return ehdr->e_entry;