syscall: call getfsstat via libc on openbsd

On openbsd, call getfsstat directly via libc, instead of calling it via syscall.Syscall. Updates golang/go#63900 Change-Id: I99a3555b3207754b107dbabf63440569fca93eea Reviewed-on: https://go-review.googlesource.com/c/sys/+/538976 Reviewed-by: Cherry Mui <[email protected]> Run-TryBot: Joel Sing <[email protected]> Reviewed-by: Tobias Klauser <[email protected]> Reviewed-by: Josh Rickmar <[email protected]> Reviewed-by: Bryan Mills <[email protected]> TryBot-Result: Gopher Robot <[email protected]>
jrick · Nov 3, 2023 · cb378ae · cb378ae
1 parent 661d749
commit cb378ae
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Showing 15 changed files with 145 additions and 8 deletions.
diff --git a/unix/syscall_openbsd.go b/unix/syscall_openbsd.go
@@ -137,18 +137,13 @@ func sendfile(outfd int, infd int, offset *int64, count int) (written int, err e
 }
 
 func Getfsstat(buf []Statfs_t, flags int) (n int, err error) {
-	var _p0 unsafe.Pointer
+	var bufptr *Statfs_t
 	var bufsize uintptr
 	if len(buf) > 0 {
-		_p0 = unsafe.Pointer(&buf[0])
+		bufptr = &buf[0]
 		bufsize = unsafe.Sizeof(Statfs_t{}) * uintptr(len(buf))
 	}
-	r0, _, e1 := Syscall(SYS_GETFSSTAT, uintptr(_p0), bufsize, uintptr(flags))
-	n = int(r0)
-	if e1 != 0 {
-		err = e1
-	}
-	return
+	return getfsstat(bufptr, bufsize, flags)
 }
 
 //sysnb	getresuid(ruid *_C_int, euid *_C_int, suid *_C_int)
@@ -326,6 +321,7 @@ func Uname(uname *Utsname) error {
 //sys	write(fd int, p []byte) (n int, err error)
 //sys	mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error)
 //sys	munmap(addr uintptr, length uintptr) (err error)
+//sys	getfsstat(stat *Statfs_t, bufsize uintptr, flags int) (n int, err error)
 //sys	utimensat(dirfd int, path string, times *[2]Timespec, flags int) (err error)
 //sys	pledge(promises *byte, execpromises *byte) (err error)
 //sys	unveil(path *byte, flags *byte) (err error)
diff --git a/unix/zsyscall_openbsd_386.go b/unix/zsyscall_openbsd_386.go
diff --git a/unix/zsyscall_openbsd_386.s b/unix/zsyscall_openbsd_386.s
@@ -668,6 +668,11 @@ TEXT libc_munmap_trampoline<>(SB),NOSPLIT,$0-0
 GLOBL	·libc_munmap_trampoline_addr(SB), RODATA, $4
 DATA	·libc_munmap_trampoline_addr(SB)/4, $libc_munmap_trampoline<>(SB)
 
+TEXT libc_getfsstat_trampoline<>(SB),NOSPLIT,$0-0
+	JMP	libc_getfsstat(SB)
+GLOBL	·libc_getfsstat_trampoline_addr(SB), RODATA, $4
+DATA	·libc_getfsstat_trampoline_addr(SB)/4, $libc_getfsstat_trampoline<>(SB)
+
 TEXT libc_utimensat_trampoline<>(SB),NOSPLIT,$0-0
 	JMP	libc_utimensat(SB)
 GLOBL	·libc_utimensat_trampoline_addr(SB), RODATA, $4

diff --git a/unix/zsyscall_openbsd_amd64.go b/unix/zsyscall_openbsd_amd64.go
diff --git a/unix/zsyscall_openbsd_amd64.s b/unix/zsyscall_openbsd_amd64.s
@@ -668,6 +668,11 @@ TEXT libc_munmap_trampoline<>(SB),NOSPLIT,$0-0
 GLOBL	·libc_munmap_trampoline_addr(SB), RODATA, $8
 DATA	·libc_munmap_trampoline_addr(SB)/8, $libc_munmap_trampoline<>(SB)
 
+TEXT libc_getfsstat_trampoline<>(SB),NOSPLIT,$0-0
+	JMP	libc_getfsstat(SB)
+GLOBL	·libc_getfsstat_trampoline_addr(SB), RODATA, $8
+DATA	·libc_getfsstat_trampoline_addr(SB)/8, $libc_getfsstat_trampoline<>(SB)
+
 TEXT libc_utimensat_trampoline<>(SB),NOSPLIT,$0-0
 	JMP	libc_utimensat(SB)
 GLOBL	·libc_utimensat_trampoline_addr(SB), RODATA, $8

diff --git a/unix/zsyscall_openbsd_arm.go b/unix/zsyscall_openbsd_arm.go
diff --git a/unix/zsyscall_openbsd_arm.s b/unix/zsyscall_openbsd_arm.s
@@ -668,6 +668,11 @@ TEXT libc_munmap_trampoline<>(SB),NOSPLIT,$0-0
 GLOBL	·libc_munmap_trampoline_addr(SB), RODATA, $4
 DATA	·libc_munmap_trampoline_addr(SB)/4, $libc_munmap_trampoline<>(SB)
 
+TEXT libc_getfsstat_trampoline<>(SB),NOSPLIT,$0-0
+	JMP	libc_getfsstat(SB)
+GLOBL	·libc_getfsstat_trampoline_addr(SB), RODATA, $4
+DATA	·libc_getfsstat_trampoline_addr(SB)/4, $libc_getfsstat_trampoline<>(SB)
+
 TEXT libc_utimensat_trampoline<>(SB),NOSPLIT,$0-0
 	JMP	libc_utimensat(SB)
 GLOBL	·libc_utimensat_trampoline_addr(SB), RODATA, $4

diff --git a/unix/zsyscall_openbsd_arm64.go b/unix/zsyscall_openbsd_arm64.go
diff --git a/unix/zsyscall_openbsd_arm64.s b/unix/zsyscall_openbsd_arm64.s
@@ -668,6 +668,11 @@ TEXT libc_munmap_trampoline<>(SB),NOSPLIT,$0-0
 GLOBL	·libc_munmap_trampoline_addr(SB), RODATA, $8
 DATA	·libc_munmap_trampoline_addr(SB)/8, $libc_munmap_trampoline<>(SB)
 
+TEXT libc_getfsstat_trampoline<>(SB),NOSPLIT,$0-0
+	JMP	libc_getfsstat(SB)
+GLOBL	·libc_getfsstat_trampoline_addr(SB), RODATA, $8
+DATA	·libc_getfsstat_trampoline_addr(SB)/8, $libc_getfsstat_trampoline<>(SB)
+
 TEXT libc_utimensat_trampoline<>(SB),NOSPLIT,$0-0
 	JMP	libc_utimensat(SB)
 GLOBL	·libc_utimensat_trampoline_addr(SB), RODATA, $8

diff --git a/unix/zsyscall_openbsd_mips64.go b/unix/zsyscall_openbsd_mips64.go
diff --git a/unix/zsyscall_openbsd_mips64.s b/unix/zsyscall_openbsd_mips64.s
@@ -668,6 +668,11 @@ TEXT libc_munmap_trampoline<>(SB),NOSPLIT,$0-0
 GLOBL	·libc_munmap_trampoline_addr(SB), RODATA, $8
 DATA	·libc_munmap_trampoline_addr(SB)/8, $libc_munmap_trampoline<>(SB)
 
+TEXT libc_getfsstat_trampoline<>(SB),NOSPLIT,$0-0
+	JMP	libc_getfsstat(SB)
+GLOBL	·libc_getfsstat_trampoline_addr(SB), RODATA, $8
+DATA	·libc_getfsstat_trampoline_addr(SB)/8, $libc_getfsstat_trampoline<>(SB)
+
 TEXT libc_utimensat_trampoline<>(SB),NOSPLIT,$0-0
 	JMP	libc_utimensat(SB)
 GLOBL	·libc_utimensat_trampoline_addr(SB), RODATA, $8

diff --git a/unix/zsyscall_openbsd_ppc64.go b/unix/zsyscall_openbsd_ppc64.go
diff --git a/unix/zsyscall_openbsd_ppc64.s b/unix/zsyscall_openbsd_ppc64.s
@@ -801,6 +801,12 @@ TEXT libc_munmap_trampoline<>(SB),NOSPLIT,$0-0
 GLOBL	·libc_munmap_trampoline_addr(SB), RODATA, $8
 DATA	·libc_munmap_trampoline_addr(SB)/8, $libc_munmap_trampoline<>(SB)
 
+TEXT libc_getfsstat_trampoline<>(SB),NOSPLIT,$0-0
+	CALL	libc_getfsstat(SB)
+	RET
+GLOBL	·libc_getfsstat_trampoline_addr(SB), RODATA, $8
+DATA	·libc_getfsstat_trampoline_addr(SB)/8, $libc_getfsstat_trampoline<>(SB)
+
 TEXT libc_utimensat_trampoline<>(SB),NOSPLIT,$0-0
 	CALL	libc_utimensat(SB)
 	RET

diff --git a/unix/zsyscall_openbsd_riscv64.go b/unix/zsyscall_openbsd_riscv64.go
diff --git a/unix/zsyscall_openbsd_riscv64.s b/unix/zsyscall_openbsd_riscv64.s
@@ -668,6 +668,11 @@ TEXT libc_munmap_trampoline<>(SB),NOSPLIT,$0-0
 GLOBL	·libc_munmap_trampoline_addr(SB), RODATA, $8
 DATA	·libc_munmap_trampoline_addr(SB)/8, $libc_munmap_trampoline<>(SB)
 
+TEXT libc_getfsstat_trampoline<>(SB),NOSPLIT,$0-0
+	JMP	libc_getfsstat(SB)
+GLOBL	·libc_getfsstat_trampoline_addr(SB), RODATA, $8
+DATA	·libc_getfsstat_trampoline_addr(SB)/8, $libc_getfsstat_trampoline<>(SB)
+
 TEXT libc_utimensat_trampoline<>(SB),NOSPLIT,$0-0
 	JMP	libc_utimensat(SB)
 GLOBL	·libc_utimensat_trampoline_addr(SB), RODATA, $8