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zdump: dfo_elf: replace HDR_PER_CPU_SIZE with get_max_note_size_per_cpu

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The maximum size of all supported ELF note entries for a CPU can be 0x4a4 bytes
and not 0x4a0. Use a function for the calculation so it's easier to maintain.

Signed-off-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Reviewed-by: Steffen Eiden <seiden@linux.ibm.com>
Reviewed-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
This commit is contained in:
Marc Hartmayer
2022-09-01 20:09:48 +00:00
committed by Jan Höppner
parent d712806b39
commit dc87aef335
3 changed files with 25 additions and 4 deletions
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18
zdump/df_elf.c
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@@ -331,3 +331,21 @@ void *nt_vmcoreinfo(void *ptr, const char *vmcoreinfo)
return nt_init(ptr, 0, vmcoreinfo, strlen(vmcoreinfo),
NOTE_NAME_VMCOREINFO);
}
/* Keep in sync with `struct dfi_cpu` */
size_t get_max_note_size_per_cpu(void)
{
size_t size = 0;
size += ELF64_NOTE_SIZE(NOTE_NAME_CORE, sizeof(struct nt_prstatus_64));
size += ELF64_NOTE_SIZE(NOTE_NAME_CORE, sizeof(struct nt_fpregset_64));
size += ELF64_NOTE_SIZE(NOTE_NAME_LINUX, sizeof_field(struct dfi_cpu, timer));
size += ELF64_NOTE_SIZE(NOTE_NAME_LINUX, sizeof_field(struct dfi_cpu, todcmp));
size += ELF64_NOTE_SIZE(NOTE_NAME_LINUX, sizeof_field(struct dfi_cpu, todpreg));
size += ELF64_NOTE_SIZE(NOTE_NAME_LINUX, sizeof_field(struct dfi_cpu, ctrs));
size += ELF64_NOTE_SIZE(NOTE_NAME_LINUX, sizeof_field(struct dfi_cpu, prefix));
size += ELF64_NOTE_SIZE(NOTE_NAME_LINUX, sizeof_field(struct dfi_cpu, vxrs_low));
size += ELF64_NOTE_SIZE(NOTE_NAME_LINUX, sizeof_field(struct dfi_cpu, vxrs_high));
return size;
}