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ELF64 support (#220)

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* include: Introduce elf64.h and elf.h

    Added elf64.h for 64bit ELF support and moved common definitions
    from elf32.h to elf.h. Also introduced Elf_xxx to be used in
    common libraries such as binfmt.

  * binfmt, include, modlib, module: Add support for ELF64

    Elf_xxx must be used instead of Elf32_xxx to support ELF64.
    To use ELF64, CONFIG_ELF_64BIT must be enabled.

  * binfmt, modlib: Add support for relocate address

  * arch: risc-v: Add include/elf.h

  * libs: machine: Add risc-v related files.

    NOTE: Currently only supports ELF64

  * boards: maix-bit: Add elf and posix_spawn configurations

  * boards: maix-bit: Add support for module configuration
This commit is contained in:
Masayuki Ishikawa
2020-02-07 17:10:23 -06:00
committed by Gregory Nutt
parent e21c30cf9d
commit 81f1133174
40 changed files with 1847 additions and 300 deletions
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binfmt/libelf/libelf_load.c
+4 -3
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@@ -106,7 +106,7 @@ static void elf_elfsize(struct elf_loadinfo_s *loadinfo)
for (i = 0; i < loadinfo->ehdr.e_shnum; i++)
{
FAR Elf32_Shdr *shdr = &loadinfo->shdr[i];
FAR Elf_Shdr *shdr = &loadinfo->shdr[i];
/* SHF_ALLOC indicates that the section requires memory during
* execution.
@@ -164,7 +164,7 @@ static inline int elf_loadfile(FAR struct elf_loadinfo_s *loadinfo)
for (i = 0; i < loadinfo->ehdr.e_shnum; i++)
{
FAR Elf32_Shdr *shdr = &loadinfo->shdr[i];
FAR Elf_Shdr *shdr = &loadinfo->shdr[i];
/* SHF_ALLOC indicates that the section requires memory during
* execution.
@@ -286,7 +286,8 @@ int elf_load(FAR struct elf_loadinfo_s *loadinfo)
/* Allocate (and zero) memory for the ELF file. */
ret = elf_addrenv_alloc(loadinfo, loadinfo->textsize, loadinfo->datasize, heapsize);
ret = elf_addrenv_alloc(loadinfo, loadinfo->textsize, loadinfo->datasize,
heapsize);
if (ret < 0)
{
berr("ERROR: elf_addrenv_alloc() failed: %d\n", ret);