all: $(TEST_GEN_PROGS) $(TEST_PROGS_EXTENDED)
-fpsimd-test: fpsimd-test.o
+fpsimd-test: fpsimd-test.o asm-utils.o
$(CC) -nostdlib $^ -o $@
rdvl-sve: rdvl-sve.o rdvl.o
sve-ptrace: sve-ptrace.o
sve-probe-vls: sve-probe-vls.o rdvl.o
-sve-test: sve-test.o
+sve-test: sve-test.o asm-utils.o
$(CC) -nostdlib $^ -o $@
vec-syscfg: vec-syscfg.o rdvl.o
vlset: vlset.o
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright (C) 2015-2021 ARM Limited.
+// Original author: Dave Martin <Dave.Martin@arm.com>
+//
+// Utility functions for assembly code.
+
+#include <asm/unistd.h>
+#include "assembler.h"
+
+// Print a single character x0 to stdout
+// Clobbers x0-x2,x8
+function putc
+ str x0, [sp, #-16]!
+
+ mov x0, #1 // STDOUT_FILENO
+ mov x1, sp
+ mov x2, #1
+ mov x8, #__NR_write
+ svc #0
+
+ add sp, sp, #16
+ ret
+endfunction
+.globl putc
+
+// Print a NUL-terminated string starting at address x0 to stdout
+// Clobbers x0-x3,x8
+function puts
+ mov x1, x0
+
+ mov x2, #0
+0: ldrb w3, [x0], #1
+ cbz w3, 1f
+ add x2, x2, #1
+ b 0b
+
+1: mov w0, #1 // STDOUT_FILENO
+ mov x8, #__NR_write
+ svc #0
+
+ ret
+endfunction
+.globl puts
+
+// Print an unsigned decimal number x0 to stdout
+// Clobbers x0-x4,x8
+function putdec
+ mov x1, sp
+ str x30, [sp, #-32]! // Result can't be > 20 digits
+
+ mov x2, #0
+ strb w2, [x1, #-1]! // Write the NUL terminator
+
+ mov x2, #10
+0: udiv x3, x0, x2 // div-mod loop to generate the digits
+ msub x0, x3, x2, x0
+ add w0, w0, #'0'
+ strb w0, [x1, #-1]!
+ mov x0, x3
+ cbnz x3, 0b
+
+ ldrb w0, [x1]
+ cbnz w0, 1f
+ mov w0, #'0' // Print "0" for 0, not ""
+ strb w0, [x1, #-1]!
+
+1: mov x0, x1
+ bl puts
+
+ ldr x30, [sp], #32
+ ret
+endfunction
+.globl putdec
+
+// Print an unsigned decimal number x0 to stdout, followed by a newline
+// Clobbers x0-x5,x8
+function putdecn
+ mov x5, x30
+
+ bl putdec
+ mov x0, #'\n'
+ bl putc
+
+ ret x5
+endfunction
+.globl putdecn
+
+// Clobbers x0-x3,x8
+function puthexb
+ str x30, [sp, #-0x10]!
+
+ mov w3, w0
+ lsr w0, w0, #4
+ bl puthexnibble
+ mov w0, w3
+
+ ldr x30, [sp], #0x10
+ // fall through to puthexnibble
+endfunction
+.globl puthexb
+
+// Clobbers x0-x2,x8
+function puthexnibble
+ and w0, w0, #0xf
+ cmp w0, #10
+ blo 1f
+ add w0, w0, #'a' - ('9' + 1)
+1: add w0, w0, #'0'
+ b putc
+endfunction
+.globl puthexnibble
+
+// x0=data in, x1=size in, clobbers x0-x5,x8
+function dumphex
+ str x30, [sp, #-0x10]!
+
+ mov x4, x0
+ mov x5, x1
+
+0: subs x5, x5, #1
+ b.lo 1f
+ ldrb w0, [x4], #1
+ bl puthexb
+ b 0b
+
+1: ldr x30, [sp], #0x10
+ ret
+endfunction
+.globl dumphex
+
+ // Trivial memory copy: copy x2 bytes, starting at address x1, to address x0.
+// Clobbers x0-x3
+function memcpy
+ cmp x2, #0
+ b.eq 1f
+0: ldrb w3, [x1], #1
+ strb w3, [x0], #1
+ subs x2, x2, #1
+ b.ne 0b
+1: ret
+endfunction
+.globl memcpy
+
+// Fill x1 bytes starting at x0 with 0xae (for canary purposes)
+// Clobbers x1, x2.
+function memfill_ae
+ mov w2, #0xae
+ b memfill
+endfunction
+.globl memfill_ae
+
+// Fill x1 bytes starting at x0 with 0.
+// Clobbers x1, x2.
+function memclr
+ mov w2, #0
+endfunction
+.globl memclr
+ // fall through to memfill
+
+// Trivial memory fill: fill x1 bytes starting at address x0 with byte w2
+// Clobbers x1
+function memfill
+ cmp x1, #0
+ b.eq 1f
+
+0: strb w2, [x0], #1
+ subs x1, x1, #1
+ b.ne 0b
+
+1: ret
+endfunction
+.globl memfill
.purgem \name\()_entry
.endm
+// Utility macro to print a literal string
+// Clobbers x0-x4,x8
+.macro puts string
+ .pushsection .rodata.str1.1, "aMS", 1
+.L__puts_literal\@: .string "\string"
+ .popsection
+
+ ldr x0, =.L__puts_literal\@
+ bl puts
+.endm
+
#endif /* ! ASSEMBLER_H */
define_accessor setv, NVR, _vldr
define_accessor getv, NVR, _vstr
-// Print a single character x0 to stdout
-// Clobbers x0-x2,x8
-function putc
- str x0, [sp, #-16]!
-
- mov x0, #1 // STDOUT_FILENO
- mov x1, sp
- mov x2, #1
- mov x8, #__NR_write
- svc #0
-
- add sp, sp, #16
- ret
-endfunction
-
-// Print a NUL-terminated string starting at address x0 to stdout
-// Clobbers x0-x3,x8
-function puts
- mov x1, x0
-
- mov x2, #0
-0: ldrb w3, [x0], #1
- cbz w3, 1f
- add x2, x2, #1
- b 0b
-
-1: mov w0, #1 // STDOUT_FILENO
- mov x8, #__NR_write
- svc #0
-
- ret
-endfunction
-
-// Utility macro to print a literal string
-// Clobbers x0-x4,x8
-.macro puts string
- .pushsection .rodata.str1.1, "aMS", 1
-.L__puts_literal\@: .string "\string"
- .popsection
-
- ldr x0, =.L__puts_literal\@
- bl puts
-.endm
-
-// Print an unsigned decimal number x0 to stdout
-// Clobbers x0-x4,x8
-function putdec
- mov x1, sp
- str x30, [sp, #-32]! // Result can't be > 20 digits
-
- mov x2, #0
- strb w2, [x1, #-1]! // Write the NUL terminator
-
- mov x2, #10
-0: udiv x3, x0, x2 // div-mod loop to generate the digits
- msub x0, x3, x2, x0
- add w0, w0, #'0'
- strb w0, [x1, #-1]!
- mov x0, x3
- cbnz x3, 0b
-
- ldrb w0, [x1]
- cbnz w0, 1f
- mov w0, #'0' // Print "0" for 0, not ""
- strb w0, [x1, #-1]!
-
-1: mov x0, x1
- bl puts
-
- ldr x30, [sp], #32
- ret
-endfunction
-
-// Print an unsigned decimal number x0 to stdout, followed by a newline
-// Clobbers x0-x5,x8
-function putdecn
- mov x5, x30
-
- bl putdec
- mov x0, #'\n'
- bl putc
-
- ret x5
-endfunction
-
-
-// Clobbers x0-x3,x8
-function puthexb
- str x30, [sp, #-0x10]!
-
- mov w3, w0
- lsr w0, w0, #4
- bl puthexnibble
- mov w0, w3
-
- ldr x30, [sp], #0x10
- // fall through to puthexnibble
-endfunction
-// Clobbers x0-x2,x8
-function puthexnibble
- and w0, w0, #0xf
- cmp w0, #10
- blo 1f
- add w0, w0, #'a' - ('9' + 1)
-1: add w0, w0, #'0'
- b putc
-endfunction
-
-// x0=data in, x1=size in, clobbers x0-x5,x8
-function dumphex
- str x30, [sp, #-0x10]!
-
- mov x4, x0
- mov x5, x1
-
-0: subs x5, x5, #1
- b.lo 1f
- ldrb w0, [x4], #1
- bl puthexb
- b 0b
-
-1: ldr x30, [sp], #0x10
- ret
-endfunction
-
// Declare some storate space to shadow the SVE register contents:
.pushsection .text
.data
.space MAXVL_B
.popsection
-// Trivial memory copy: copy x2 bytes, starting at address x1, to address x0.
-// Clobbers x0-x3
-function memcpy
- cmp x2, #0
- b.eq 1f
-0: ldrb w3, [x1], #1
- strb w3, [x0], #1
- subs x2, x2, #1
- b.ne 0b
-1: ret
-endfunction
-
// Generate a test pattern for storage in SVE registers
// x0: pid (16 bits)
// x1: register number (6 bits)
ret x4
endfunction
-// Fill x1 bytes starting at x0 with 0xae (for canary purposes)
-// Clobbers x1, x2.
-function memfill_ae
- mov w2, #0xae
- b memfill
-endfunction
-
-// Fill x1 bytes starting at x0 with 0.
-// Clobbers x1, x2.
-function memclr
- mov w2, #0
-endfunction
- // fall through to memfill
-
-// Trivial memory fill: fill x1 bytes starting at address x0 with byte w2
-// Clobbers x1
-function memfill
- cmp x1, #0
- b.eq 1f
-
-0: strb w2, [x0], #1
- subs x1, x1, #1
- b.ne 0b
-
-1: ret
-endfunction
-
// Trivial memory compare: compare x2 bytes starting at address x0 with
// bytes starting at address x1.
// Returns only if all bytes match; otherwise, the program is aborted.
define_accessor setp, NPR, _sve_ldr_p
define_accessor getp, NPR, _sve_str_p
-// Print a single character x0 to stdout
-// Clobbers x0-x2,x8
-function putc
- str x0, [sp, #-16]!
-
- mov x0, #1 // STDOUT_FILENO
- mov x1, sp
- mov x2, #1
- mov x8, #__NR_write
- svc #0
-
- add sp, sp, #16
- ret
-endfunction
-
-// Print a NUL-terminated string starting at address x0 to stdout
-// Clobbers x0-x3,x8
-function puts
- mov x1, x0
-
- mov x2, #0
-0: ldrb w3, [x0], #1
- cbz w3, 1f
- add x2, x2, #1
- b 0b
-
-1: mov w0, #1 // STDOUT_FILENO
- mov x8, #__NR_write
- svc #0
-
- ret
-endfunction
-
-// Utility macro to print a literal string
-// Clobbers x0-x4,x8
-.macro puts string
- .pushsection .rodata.str1.1, "aMS", 1
-.L__puts_literal\@: .string "\string"
- .popsection
-
- ldr x0, =.L__puts_literal\@
- bl puts
-.endm
-
-// Print an unsigned decimal number x0 to stdout
-// Clobbers x0-x4,x8
-function putdec
- mov x1, sp
- str x30, [sp, #-32]! // Result can't be > 20 digits
-
- mov x2, #0
- strb w2, [x1, #-1]! // Write the NUL terminator
-
- mov x2, #10
-0: udiv x3, x0, x2 // div-mod loop to generate the digits
- msub x0, x3, x2, x0
- add w0, w0, #'0'
- strb w0, [x1, #-1]!
- mov x0, x3
- cbnz x3, 0b
-
- ldrb w0, [x1]
- cbnz w0, 1f
- mov w0, #'0' // Print "0" for 0, not ""
- strb w0, [x1, #-1]!
-
-1: mov x0, x1
- bl puts
-
- ldr x30, [sp], #32
- ret
-endfunction
-
-// Print an unsigned decimal number x0 to stdout, followed by a newline
-// Clobbers x0-x5,x8
-function putdecn
- mov x5, x30
-
- bl putdec
- mov x0, #'\n'
- bl putc
-
- ret x5
-endfunction
-
-// Clobbers x0-x3,x8
-function puthexb
- str x30, [sp, #-0x10]!
-
- mov w3, w0
- lsr w0, w0, #4
- bl puthexnibble
- mov w0, w3
-
- ldr x30, [sp], #0x10
- // fall through to puthexnibble
-endfunction
-// Clobbers x0-x2,x8
-function puthexnibble
- and w0, w0, #0xf
- cmp w0, #10
- blo 1f
- add w0, w0, #'a' - ('9' + 1)
-1: add w0, w0, #'0'
- b putc
-endfunction
-
-// x0=data in, x1=size in, clobbers x0-x5,x8
-function dumphex
- str x30, [sp, #-0x10]!
-
- mov x4, x0
- mov x5, x1
-
-0: subs x5, x5, #1
- b.lo 1f
- ldrb w0, [x4], #1
- bl puthexb
- b 0b
-
-1: ldr x30, [sp], #0x10
- ret
-endfunction
-
// Declare some storate space to shadow the SVE register contents:
.pushsection .text
.data
.space MAXVL_B
.popsection
-// Trivial memory copy: copy x2 bytes, starting at address x1, to address x0.
-// Clobbers x0-x3
-function memcpy
- cmp x2, #0
- b.eq 1f
-0: ldrb w3, [x1], #1
- strb w3, [x0], #1
- subs x2, x2, #1
- b.ne 0b
-1: ret
-endfunction
-
// Generate a test pattern for storage in SVE registers
// x0: pid (16 bits)
// x1: register number (6 bits)
ret x4
endfunction
-// Fill x1 bytes starting at x0 with 0xae (for canary purposes)
-// Clobbers x1, x2.
-function memfill_ae
- mov w2, #0xae
- b memfill
-endfunction
-
-// Fill x1 bytes starting at x0 with 0.
-// Clobbers x1, x2.
-function memclr
- mov w2, #0
-endfunction
- // fall through to memfill
-
-// Trivial memory fill: fill x1 bytes starting at address x0 with byte w2
-// Clobbers x1
-function memfill
- cmp x1, #0
- b.eq 1f
-
-0: strb w2, [x0], #1
- subs x1, x1, #1
- b.ne 0b
-
-1: ret
-endfunction
-
// Trivial memory compare: compare x2 bytes starting at address x0 with
// bytes starting at address x1.
// Returns only if all bytes match; otherwise, the program is aborted.
projects / linux.git / commitdiff