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kernel/x86: asm offsets for the extended syscall table.

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the x86_64 compat syscall entry needs size and offset of parameters to
handle them correctly to the syscall function. struct extended_syscall_info
and struct syscall_parameter_info provide parameter count, size and offsets.

Change-Id: I7e5c7b6e19e757b28b43c3b3419b7071fae321f8
This commit is contained in:
Jérôme Duval 2018-05-04 20:25:55 +02:00
parent ae47dec0fd
commit 0032be820b
1 changed files with 12 additions and 0 deletions
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12
src/system/kernel/arch/x86/asm_offsets.cpp
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@ -80,6 +80,18 @@ dummy()
DEFINE_OFFSET_MACRO(SYSCALL_INFO, syscall_info, function);
DEFINE_OFFSET_MACRO(SYSCALL_INFO, syscall_info, parameter_size);
// struct extended_syscall_info
DEFINE_SIZEOF_MACRO(EXTENDED_SYSCALL_INFO, extended_syscall_info);
DEFINE_OFFSET_MACRO(EXTENDED_SYSCALL_INFO, extended_syscall_info,
parameter_count);
DEFINE_OFFSET_MACRO(EXTENDED_SYSCALL_INFO, extended_syscall_info,
parameters);
// struct syscall_parameter_info
DEFINE_SIZEOF_MACRO(SYSCALL_PARAMETER_INFO, syscall_parameter_info);
DEFINE_OFFSET_MACRO(SYSCALL_PARAMETER_INFO, syscall_parameter_info,
used_size);
// struct signal_frame_data
DEFINE_SIZEOF_MACRO(SIGNAL_FRAME_DATA, signal_frame_data);
DEFINE_OFFSET_MACRO(SIGNAL_FRAME_DATA, signal_frame_data, info);