Hello Walter, On Mon, 9 Sep 2019 at 11:08, walter harms <wharms@xxxxxx> wrote: > > > > Am 09.09.2019 10:52, schrieb Michael Kerrisk (man-pages): > > [Adding Adam Borowski in CC, since he wrote the riscv text back at the > > start of 2018, andand he may have a comment.] > > > > On Thu, 5 Sep 2019 at 18:35, Florin Blanaru <florin.blanaru96@xxxxxxxxx> wrote: > >> > >> http://man7.org/linux/man-pages/man2/syscall.2.html > >> > >> In the first table, for the riscv Arch/ABI, the instruction should be > >> ecall instead of scall. > >> > >> According the official manual, the instruction has been renamed. > >> https://content.riscv.org/wp-content/uploads/2017/05/riscv-spec-v2.2.pdf > >> > >> "The SCALL and SBREAK instructions have been renamed to ECALL and > >> EBREAK, re-spectively. Their encoding and functionality are > >> unchanged." > > > > Maybe it would be helpful to add a "footnote" that this is a rename only. > Otherwise people may get confused. Yes, perhaps that would be helpful. I updated the patch to be as below. Thanks! Michael diff --git a/man2/syscall.2 b/man2/syscall.2 index 77e6bccdd..53118c297 100644 --- a/man2/syscall.2 +++ b/man2/syscall.2 @@ -196,7 +196,7 @@ mips syscall v0 v0 v1 a3 1, 6 nios2 trap r2 r2 - r7 parisc ble 0x100(%sr2, %r0) r20 r28 - - powerpc sc r0 r3 - r0 1 -riscv scall a7 a0 a1 - +riscv ecall a7 a0 a1 - 7 s390 svc 0 r1 r2 r3 - 3 s390x svc 0 r1 r2 r3 - 3 superh trap #0x17 r3 r0 r1 - 4, 6 @@ -298,6 +298,11 @@ in the system call interface, even if it is defined in the System V ABI. .in .ft P \} +.IP [7] +On riscv, the +.I ecall +instruction was formerly named +.IR scall . .PP The second table shows the registers used to pass the system call arguments. .if t \{\ -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Linux/UNIX System Programming Training: http://man7.org/training/
