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| author | Kimplul <kimi.h.kuparinen@gmail.com> | 2022-09-14 23:34:58 +0300 |
|---|---|---|
| committer | Kimplul <kimi.h.kuparinen@gmail.com> | 2022-09-14 23:34:58 +0300 |
| commit | 30055ec1753b5f8cfc2940dba5d4188475fdbf7f (patch) | |
| tree | 5497eb92f0f7083755589ca5a31755166a739522 /arch | |
| parent | cabbf335824db0df835e4c541c19d3803ce38454 (diff) | |
| download | kmi-30055ec1753b5f8cfc2940dba5d4188475fdbf7f.tar.gz kmi-30055ec1753b5f8cfc2940dba5d4188475fdbf7f.zip | |
add putch syscall for easier userspace debugging
+ Note that it is NOT intended for end user usage, just for debugging.
Diffstat (limited to 'arch')
| -rwxr-xr-x | arch/riscv64/conf/init | bin | 1096 -> 1232 bytes | |||
| -rw-r--r-- | arch/riscv64/conf/initrd | bin | 1536 -> 1536 bytes | |||
| -rw-r--r-- | arch/riscv64/conf/s.S | 44 | ||||
| -rw-r--r-- | arch/riscv64/kernel/entry.S | 2 |
4 files changed, 45 insertions, 1 deletions
diff --git a/arch/riscv64/conf/init b/arch/riscv64/conf/init Binary files differindex 0a67c41..23c3097 100755 --- a/arch/riscv64/conf/init +++ b/arch/riscv64/conf/init diff --git a/arch/riscv64/conf/initrd b/arch/riscv64/conf/initrd Binary files differindex 6021c8f..efba349 100644 --- a/arch/riscv64/conf/initrd +++ b/arch/riscv64/conf/initrd diff --git a/arch/riscv64/conf/s.S b/arch/riscv64/conf/s.S index 516dc39..7dbaf4f 100644 --- a/arch/riscv64/conf/s.S +++ b/arch/riscv64/conf/s.S @@ -10,3 +10,47 @@ li a2, 2 li a3, 3 li a4, 4 ecall + +/* "print" hello world */ +li a0, 1 +li a1, 'H' +ecall +li a0, 1 +li a1, 'e' +ecall +li a0, 1 +li a1, 'l' +ecall +li a0, 1 +li a1, 'l' +ecall +li a0, 1 +li a1, 'o' +ecall +li a0, 1 +li a1, ',' +ecall +li a0, 1 +li a1, ' ' +ecall +li a0, 1 +li a1, 'w' +ecall +li a0, 1 +li a1, 'o' +ecall +li a0, 1 +li a1, 'r' +ecall +li a0, 1 +li a1, 'l' +ecall +li a0, 1 +li a1, 'd' +ecall +li a0, 1 +li a1, '!' +ecall +li a0, 1 +li a1, '\n' +ecall diff --git a/arch/riscv64/kernel/entry.S b/arch/riscv64/kernel/entry.S index 7301d4e..1bd6046 100644 --- a/arch/riscv64/kernel/entry.S +++ b/arch/riscv64/kernel/entry.S @@ -128,7 +128,7 @@ restore_noreturn: lr s2, offsetof_s2(sp) lr s3, offsetof_s3(sp) lr s4, offsetof_s4(sp) - lr s5, offsetof_s4(sp) + lr s5, offsetof_s5(sp) lr s6, offsetof_s6(sp) lr s7, offsetof_s7(sp) lr s8, offsetof_s8(sp) |