[U-Boot] [PATCH 4/8] cmd: elf: Reorder load_elf_image_phdr() and load_elf_image_shdr()

[Bin Meng]

Move load_elf_image_phdr() and load_elf_image_shdr() to the beginning
of the cmd_elf.c so that forward declaration is not needed.

Signed-off-by: Bin Meng <bmeng.cn at gmail.com>
---

 common/cmd_elf.c | 161 +++++++++++++++++++++++++++----------------------------
 1 file changed, 79 insertions(+), 82 deletions(-)

diff --git a/common/cmd_elf.c b/common/cmd_elf.c
index c5e4432..62863df 100644
--- a/common/cmd_elf.c
+++ b/common/cmd_elf.c
@@ -19,8 +19,85 @@
 #include <net.h>
 #include <vxworks.h>
 
-static unsigned long load_elf_image_phdr(unsigned long addr);
-static unsigned long load_elf_image_shdr(unsigned long addr);
+/*
+ * A very simple elf loader, assumes the image is valid, returns the
+ * entry point address.
+ */
+static unsigned long load_elf_image_phdr(unsigned long addr)
+{
+	Elf32_Ehdr *ehdr; /* Elf header structure pointer */
+	Elf32_Phdr *phdr; /* Program header structure pointer */
+	int i;
+
+	ehdr = (Elf32_Ehdr *)addr;
+	phdr = (Elf32_Phdr *)(addr + ehdr->e_phoff);
+
+	/* Load each program header */
+	for (i = 0; i < ehdr->e_phnum; ++i) {
+		void *dst = (void *)(uintptr_t)phdr->p_paddr;
+		void *src = (void *)addr + phdr->p_offset;
+		debug("Loading phdr %i to 0x%p (%i bytes)\n",
+		      i, dst, phdr->p_filesz);
+		if (phdr->p_filesz)
+			memcpy(dst, src, phdr->p_filesz);
+		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);
+		++phdr;
+	}
+
+	return ehdr->e_entry;
+}
+
+static unsigned long load_elf_image_shdr(unsigned long addr)
+{
+	Elf32_Ehdr *ehdr; /* Elf header structure pointer */
+	Elf32_Shdr *shdr; /* Section header structure pointer */
+	unsigned char *strtab = 0; /* String table pointer */
+	unsigned char *image; /* Binary image pointer */
+	int i; /* Loop counter */
+
+	ehdr = (Elf32_Ehdr *)addr;
+
+	/* Find the section header string table for output info */
+	shdr = (Elf32_Shdr *)(addr + ehdr->e_shoff +
+			     (ehdr->e_shstrndx * sizeof(Elf32_Shdr)));
+
+	if (shdr->sh_type == SHT_STRTAB)
+		strtab = (unsigned char *)(addr + shdr->sh_offset);
+
+	/* Load each appropriate section */
+	for (i = 0; i < ehdr->e_shnum; ++i) {
+		shdr = (Elf32_Shdr *)(addr + ehdr->e_shoff +
+				     (i * sizeof(Elf32_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 + shdr->sh_offset;
+			memcpy((void *)(uintptr_t)shdr->sh_addr,
+			       (const void *)image, shdr->sh_size);
+		}
+		flush_cache(shdr->sh_addr, shdr->sh_size);
+	}
+
+	return ehdr->e_entry;
+}
 
 /* Allow ports to override the default behavior */
 static unsigned long do_bootelf_exec(ulong (*entry)(int, char * const[]),
@@ -253,86 +330,6 @@ int do_bootvx(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	return 1;
 }
 
-/*
- * A very simple elf loader, assumes the image is valid, returns the
- * entry point address.
- */
-static unsigned long load_elf_image_phdr(unsigned long addr)
-{
-	Elf32_Ehdr *ehdr; /* Elf header structure pointer */
-	Elf32_Phdr *phdr; /* Program header structure pointer */
-	int i;
-
-	ehdr = (Elf32_Ehdr *)addr;
-	phdr = (Elf32_Phdr *)(addr + ehdr->e_phoff);
-
-	/* Load each program header */
-	for (i = 0; i < ehdr->e_phnum; ++i) {
-		void *dst = (void *)(uintptr_t)phdr->p_paddr;
-		void *src = (void *)addr + phdr->p_offset;
-		debug("Loading phdr %i to 0x%p (%i bytes)\n",
-		      i, dst, phdr->p_filesz);
-		if (phdr->p_filesz)
-			memcpy(dst, src, phdr->p_filesz);
-		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);
-		++phdr;
-	}
-
-	return ehdr->e_entry;
-}
-
-static unsigned long load_elf_image_shdr(unsigned long addr)
-{
-	Elf32_Ehdr *ehdr; /* Elf header structure pointer */
-	Elf32_Shdr *shdr; /* Section header structure pointer */
-	unsigned char *strtab = 0; /* String table pointer */
-	unsigned char *image; /* Binary image pointer */
-	int i; /* Loop counter */
-
-	ehdr = (Elf32_Ehdr *)addr;
-
-	/* Find the section header string table for output info */
-	shdr = (Elf32_Shdr *)(addr + ehdr->e_shoff +
-			     (ehdr->e_shstrndx * sizeof(Elf32_Shdr)));
-
-	if (shdr->sh_type == SHT_STRTAB)
-		strtab = (unsigned char *)(addr + shdr->sh_offset);
-
-	/* Load each appropriate section */
-	for (i = 0; i < ehdr->e_shnum; ++i) {
-		shdr = (Elf32_Shdr *)(addr + ehdr->e_shoff +
-				     (i * sizeof(Elf32_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 + shdr->sh_offset;
-			memcpy((void *)(uintptr_t)shdr->sh_addr,
-			       (const void *)image, shdr->sh_size);
-		}
-		flush_cache(shdr->sh_addr, shdr->sh_size);
-	}
-
-	return ehdr->e_entry;
-}
-
 U_BOOT_CMD(
 	bootelf, 3, 0, do_bootelf,
 	"Boot from an ELF image in memory",
-- 
1.8.2.1