diff options
| author | Stefan Markovic <smarkovic@wavecomp.com> | 2018-10-22 16:42:27 +0200 |
|---|---|---|
| committer | Aleksandar Markovic <amarkovic@wavecomp.com> | 2018-10-29 15:50:31 +0100 |
| commit | 5dd0db52e6bc95c14892ae6e1e7b10f3d5979c1a (patch) | |
| tree | 0207456309d60fa4f932cfd4e85bd6bebc30ed1d | |
| parent | 74cfc704e539fd06dbb6f69ff9f6fb54dbfc0f1e (diff) | |
| download | focaccia-qemu-5dd0db52e6bc95c14892ae6e1e7b10f3d5979c1a.tar.gz focaccia-qemu-5dd0db52e6bc95c14892ae6e1e7b10f3d5979c1a.zip | |
linux-user: Extract MIPS abiflags from ELF file
Read MIPS.abiflags section from ELF file into Mips_elf_abiflags_v0 struct. Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com> Signed-off-by: Stefan Markovic <smarkovic@wavecomp.com>
| -rw-r--r-- | linux-user/elfload.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/linux-user/elfload.c b/linux-user/elfload.c index 055f6a95ab..5881233d22 100644 --- a/linux-user/elfload.c +++ b/linux-user/elfload.c @@ -1517,11 +1517,25 @@ static void bswap_sym(struct elf_sym *sym) bswaptls(&sym->st_size); bswap16s(&sym->st_shndx); } + +#ifdef TARGET_MIPS +static void bswap_mips_abiflags(Mips_elf_abiflags_v0 *abiflags) +{ + bswap16s(&abiflags->version); + bswap32s(&abiflags->ases); + bswap32s(&abiflags->isa_ext); + bswap32s(&abiflags->flags1); + bswap32s(&abiflags->flags2); +} +#endif #else static inline void bswap_ehdr(struct elfhdr *ehdr) { } static inline void bswap_phdr(struct elf_phdr *phdr, int phnum) { } static inline void bswap_shdr(struct elf_shdr *shdr, int shnum) { } static inline void bswap_sym(struct elf_sym *sym) { } +#ifdef TARGET_MIPS +static inline void bswap_mips_abiflags(Mips_elf_abiflags_v0 *abiflags) { } +#endif #endif #ifdef USE_ELF_CORE_DUMP @@ -2364,6 +2378,25 @@ static void load_elf_image(const char *image_name, int image_fd, goto exit_errmsg; } *pinterp_name = interp_name; +#ifdef TARGET_MIPS + } else if (eppnt->p_type == PT_MIPS_ABIFLAGS) { + Mips_elf_abiflags_v0 abiflags; + if (eppnt->p_filesz < sizeof(Mips_elf_abiflags_v0)) { + errmsg = "Invalid PT_MIPS_ABIFLAGS entry"; + goto exit_errmsg; + } + if (eppnt->p_offset + eppnt->p_filesz <= BPRM_BUF_SIZE) { + memcpy(&abiflags, bprm_buf + eppnt->p_offset, + sizeof(Mips_elf_abiflags_v0)); + } else { + retval = pread(image_fd, &abiflags, sizeof(Mips_elf_abiflags_v0), + eppnt->p_offset); + if (retval != sizeof(Mips_elf_abiflags_v0)) { + goto exit_perror; + } + } + bswap_mips_abiflags(&abiflags); +#endif } } |