From 856c0ad413f52d20963ef6b0fe982a0ca91086f2 Mon Sep 17 00:00:00 2001 From: Lokesh Vutla Date: Wed, 4 Sep 2019 16:01:30 +0530 Subject: remoteproc: elf_loader: Introduce a common elf loader and checker functions Introduce a common remoteproc elf loader and checker functions that automatically detects the 64 bit elf file or 32 bit elf file and loads/checks the sections accordingly. Signed-off-by: Lokesh Vutla Reviewed-by: Fabien Dessenne --- drivers/remoteproc/rproc-elf-loader.c | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) (limited to 'drivers/remoteproc/rproc-elf-loader.c') diff --git a/drivers/remoteproc/rproc-elf-loader.c b/drivers/remoteproc/rproc-elf-loader.c index 1aece2fc31..42a78f4207 100644 --- a/drivers/remoteproc/rproc-elf-loader.c +++ b/drivers/remoteproc/rproc-elf-loader.c @@ -120,6 +120,22 @@ int rproc_elf64_sanity_check(ulong addr, ulong size) return 0; } +/* Basic function to verify ELF image format */ +int rproc_elf_sanity_check(ulong addr, ulong size) +{ + Elf32_Ehdr *ehdr = (Elf32_Ehdr *)addr; + + if (!addr) { + dev_err(dev, "Invalid firmware address\n"); + return -EFAULT; + } + + if (ehdr->e_ident[EI_CLASS] == ELFCLASS64) + return rproc_elf64_sanity_check(addr, size); + else + return rproc_elf32_sanity_check(addr, size); +} + int rproc_elf32_load_image(struct udevice *dev, unsigned long addr, ulong size) { Elf32_Ehdr *ehdr; /* Elf header structure pointer */ @@ -220,3 +236,18 @@ int rproc_elf64_load_image(struct udevice *dev, ulong addr, ulong size) return ret; } + +int rproc_elf_load_image(struct udevice *dev, ulong addr, ulong size) +{ + Elf32_Ehdr *ehdr = (Elf32_Ehdr *)addr; + + if (!addr) { + dev_err(dev, "Invalid firmware address\n"); + return -EFAULT; + } + + if (ehdr->e_ident[EI_CLASS] == ELFCLASS64) + return rproc_elf64_load_image(dev, addr, size); + else + return rproc_elf32_load_image(dev, addr, size); +} -- cgit v1.2.3