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zdump: df_elf: refactor check_elf_hdr

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The function will be reused by upcoming patches.

Signed-off-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Reviewed-by: Steffen Eiden <seiden@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
This commit is contained in:
Marc Hartmayer
2022-09-23 13:58:43 +00:00
committed by Jan Höppner
parent 1780efae07
commit 6176509076
3 changed files with 15 additions and 10 deletions
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zdump/df_elf.c
+9
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@@ -52,6 +52,15 @@ bool ehdr_is_s390x(const Elf64_Ehdr *ehdr)
ehdr->e_ident[EI_CLASS] == ELFCLASS64;
}
int ehdr_check_s390x(const Elf64_Ehdr *ehdr)
{
if (!ehdr_is_elf_object(ehdr) || !ehdr_is_vmcore(ehdr))
return -ENODEV;
if (!ehdr_is_s390x(ehdr))
ERR_EXIT("Only s390x (64 bit) core dump files are supported");
return 0;
}
Elf64_Ehdr *read_elf_hdr(const struct zg_fh *fh)
{
Elf64_Ehdr *ehdr;