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64d5ce26d6
* Remove standard C headers since we have vmlinux.h already * Simplify get_goroutine_id() implementation, this reduces a map and thus reduces runtime memory comsumption. While at it, unify all indention using 4 spaces. Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com>
42 lines
1.6 KiB
C
42 lines
1.6 KiB
C
// function_parameter stores information about a single parameter to a function.
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typedef struct function_parameter {
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// Type of the parameter as defined by the reflect.Kind enum.
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unsigned int kind;
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// Size of the variable in bytes.
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unsigned int size;
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// Offset from stack pointer. This should only be set from the Go side.
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int offset;
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// If true, the parameter is passed in a register.
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bool in_reg;
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// The number of register pieces the parameter is passed in.
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int n_pieces;
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// If in_reg is true, this represents the registers that the parameter is passed in.
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// This is an array because the number of registers may vary and the parameter may be
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// passed in multiple registers.
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int reg_nums[6];
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// The following are filled in by the eBPF program.
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size_t daddr; // Data address.
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char val[0x30]; // Value of the parameter.
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char deref_val[0x30]; // Dereference value of the parameter.
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} function_parameter_t;
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// function_parameter_list holds info about the function parameters and
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// stores information on up to 6 parameters.
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typedef struct function_parameter_list {
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unsigned int goid_offset; // Offset of the `goid` struct member.
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long long g_addr_offset; // Offset of the Goroutine struct from the TLS segment.
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int goroutine_id;
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unsigned long long int fn_addr;
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bool is_ret;
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unsigned int n_parameters; // number of parameters.
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function_parameter_t params[6]; // list of parameters.
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unsigned int n_ret_parameters; // number of return parameters.
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function_parameter_t ret_params[6]; // list of return parameters.
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} function_parameter_list_t;
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