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Bitfield with negative bit_position value #49

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IridiumXOR opened this issue May 28, 2023 · 3 comments
Closed

Bitfield with negative bit_position value #49

IridiumXOR opened this issue May 28, 2023 · 3 comments

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@IridiumXOR
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Hi,
generating the json profile for vmlinux-5.19.0-40-generic Ubuntu 22.04 stock kernel I have discovered that the tool produce a negative bit_position value for bitfields (example for field active_mode in struct Scsi_Host.
I think the problem come from this line:

dwarf2json/main.go

Line 290 in c306d11

vtypeField.FieldType["bit_position"] = maxPos - (field.BitOffset + (field.BitSize - 1))

Please can you fix it?
@Shiselster
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I tend to believe the issue stems from differences between DWARF Version 4 and DWARF Version 5, the latter probably not supported by dwarf2json yet?

@TamirVered
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Happens to me too (only on DWARF Version 5), any intention to fix it?

@gcmoreira gcmoreira mentioned this issue Dec 7, 2023
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This was referenced Dec 14, 2023
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@Shiselster
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Issue seems to be fixed after commit 9673739!!

Great job @mkonshie!
Any plans to merge #58 back into master?

This was referenced Jun 3, 2024
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3 participants
@Shiselster @TamirVered @IridiumXOR