context_switch_frame Struct Reference

Stores the registers and PC for a context switch. More...

Detailed Description

Stores the registers and PC for a context switch.

This also defines context_switch_frame offsets for assembly language. The structure is sized to maintain 16 byte stack alignment per the ABI. https://github.com/riscv/riscv-elf-psabi-doc

Definition at line 40 of file context_frame.h.

#include <context_frame.h>

Data Fields
uint32_t	s0
	s0 register
uint32_t	s1
	s1 register
uint32_t	s2
	s2 register
uint32_t	s3
	s3 register
uint32_t	s4
	s4 register
uint32_t	s5
	s5 register
uint32_t	s6
	s6 register
uint32_t	s7
	s7 register
uint32_t	s8
	s8 register
uint32_t	s9
	s9 register
uint32_t	s10
	s10 register
uint32_t	s11
	s11 register
uint32_t	ra
	ra register
uint32_t	t0
	t0 register
uint32_t	t1
	t1 register
uint32_t	t2
	t2 register
uint32_t	t3
	t3 register
uint32_t	t4
	t4 register
uint32_t	t5
	t5 register
uint32_t	t6
	t6 register
uint32_t	a0
	a0 register
uint32_t	a1
	a1 register
uint32_t	a2
	a2 register
uint32_t	a3
	a3 register
uint32_t	a4
	a4 register
uint32_t	a5
	a5 register
uint32_t	a6
	a6 register
uint32_t	a7
	a7 register
uint32_t	pc
	program counter
uint32_t	pad [3]
	padding to maintain 16 byte alignment

Field Documentation

a0

uint32_t context_switch_frame::a0

a0 register

Definition at line 63 of file context_frame.h.

a1

uint32_t context_switch_frame::a1

a1 register

Definition at line 64 of file context_frame.h.

a2

uint32_t context_switch_frame::a2

a2 register

Definition at line 65 of file context_frame.h.

a3

uint32_t context_switch_frame::a3

a3 register

Definition at line 66 of file context_frame.h.

a4

uint32_t context_switch_frame::a4

a4 register

Definition at line 67 of file context_frame.h.

a5

uint32_t context_switch_frame::a5

a5 register

Definition at line 68 of file context_frame.h.

a6

uint32_t context_switch_frame::a6

a6 register

Definition at line 69 of file context_frame.h.

a7

uint32_t context_switch_frame::a7

a7 register

Definition at line 70 of file context_frame.h.

pad

uint32_t context_switch_frame::pad[3]

padding to maintain 16 byte alignment

Definition at line 73 of file context_frame.h.

pc

uint32_t context_switch_frame::pc

program counter

Definition at line 72 of file context_frame.h.

ra

uint32_t context_switch_frame::ra

ra register

Definition at line 55 of file context_frame.h.

s0

uint32_t context_switch_frame::s0

s0 register

Definition at line 42 of file context_frame.h.

s1

uint32_t context_switch_frame::s1

s1 register

Definition at line 43 of file context_frame.h.

s10

uint32_t context_switch_frame::s10

s10 register

Definition at line 52 of file context_frame.h.

s11

uint32_t context_switch_frame::s11

s11 register

Definition at line 53 of file context_frame.h.

s2

uint32_t context_switch_frame::s2

s2 register

Definition at line 44 of file context_frame.h.

s3

uint32_t context_switch_frame::s3

s3 register

Definition at line 45 of file context_frame.h.

s4

uint32_t context_switch_frame::s4

s4 register

Definition at line 46 of file context_frame.h.

s5

uint32_t context_switch_frame::s5

s5 register

Definition at line 47 of file context_frame.h.

s6

uint32_t context_switch_frame::s6

s6 register

Definition at line 48 of file context_frame.h.

s7

uint32_t context_switch_frame::s7

s7 register

Definition at line 49 of file context_frame.h.

s8

uint32_t context_switch_frame::s8

s8 register

Definition at line 50 of file context_frame.h.

s9

uint32_t context_switch_frame::s9

s9 register

Definition at line 51 of file context_frame.h.

t0

uint32_t context_switch_frame::t0

t0 register

Definition at line 56 of file context_frame.h.

t1

uint32_t context_switch_frame::t1

t1 register

Definition at line 57 of file context_frame.h.

t2

uint32_t context_switch_frame::t2

t2 register

Definition at line 58 of file context_frame.h.

t3

uint32_t context_switch_frame::t3

t3 register

Definition at line 59 of file context_frame.h.

t4

uint32_t context_switch_frame::t4

t4 register

Definition at line 60 of file context_frame.h.

t5

uint32_t context_switch_frame::t5

t5 register

Definition at line 61 of file context_frame.h.

t6

uint32_t context_switch_frame::t6

t6 register

Definition at line 62 of file context_frame.h.

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The documentation for this struct was generated from the following file:

• cpu/riscv_common/include/context_frame.h