forked from Imagelibrary/binutils-gdb
3b2ffd32d2
This patch fixes some instructions in the BPF tests that overflow the signed immediates. Note that this happened to work before by chance, as GAS would silently truncate. Tested in bpf-unknown-none. Signed-off-by: Jose E. Marchesi <jose.marchesi@oracle.com>
57 lines
1.4 KiB
ArmAsm
57 lines
1.4 KiB
ArmAsm
# mach: bpf
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# output: pass\nexit 0 (0x0)\n
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;;; mem.s
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;;; Tests for BPF memory (ldx, stx, ..) instructions in simulator
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.include "testutils.inc"
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.text
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.global main
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.type main, @function
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main:
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lddw %r1, 0x1234deadbeef5678
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mov %r2, 0x1000
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;; basic store/load check
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stxb [%r2+0], %r1
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stxh [%r2+2], %r1
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stxw [%r2+4], %r1
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stxdw [%r2+8], %r1
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stb [%r2+16], 0x5a
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sth [%r2+18], 0xcafe
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stw [%r2+20], -1091568946 ; 0xbeefface
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stdw [%r2+24], 0x7eadbeef
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ldxb %r1, [%r2+16]
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fail_ne %r1, 0x5a
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ldxh %r1, [%r2+18]
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fail_ne %r1, 0xffffffffffffcafe
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ldxw %r1, [%r2+20]
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fail_ne %r1, 0xffffffffbeefface
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ldxdw %r1, [%r2+24]
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fail_ne %r1, 0x7eadbeef
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ldxb %r3, [%r2+0]
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fail_ne %r3, 0x78
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ldxh %r3, [%r2+2]
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fail_ne %r3, 0x5678
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ldxw %r3, [%r2+4]
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fail_ne %r3, 0xffffffffbeef5678
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ldxdw %r3, [%r2+8]
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fail_ne %r3, 0x1234deadbeef5678
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ldxw %r4, [%r2+10]
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fail_ne %r4, 0xffffffffdeadbeef
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;; negative offsets
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add %r2, 16
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ldxh %r5, [%r2+-14]
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fail_ne %r5, 0x5678
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ldxw %r5, [%r2+-12]
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fail_ne %r5, 0xffffffffbeef5678
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ldxdw %r5, [%r2+-8]
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fail_ne %r5, 0x1234deadbeef5678
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pass
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