31 lines
1.3 KiB
Diff
31 lines
1.3 KiB
Diff
From 8cc5120497695e7ea8dde9b096eb6c8cb9b6ac35 Mon Sep 17 00:00:00 2001
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From: Alexander Graf <agraf@suse.de>
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Date: Tue, 29 May 2012 17:28:07 +0200
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Subject: [PATCH] linux-user: ARM: Ignore immediate value for svc in thumb mode
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When running in thumb mode, Linux doesn't evaluate the immediate value
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of the svc instruction, but instead just always assumes the syscall number
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to be in r7.
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This fixes executing go_bootstrap while building go for me.
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Signed-off-by: Alexander Graf <agraf@suse.de>
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---
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linux-user/main.c | 3 +--
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1 files changed, 1 insertions(+), 2 deletions(-)
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diff --git a/linux-user/main.c b/linux-user/main.c
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index 503ecfa..ed48276 100644
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--- a/linux-user/main.c
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+++ b/linux-user/main.c
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@@ -823,8 +823,7 @@ void cpu_loop(CPUARMState *env)
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} else if (n == ARM_NR_semihosting
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|| n == ARM_NR_thumb_semihosting) {
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env->regs[0] = do_arm_semihosting (env);
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- } else if (n == 0 || n >= ARM_SYSCALL_BASE
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- || (env->thumb && n == ARM_THUMB_SYSCALL)) {
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+ } else if (n == 0 || n >= ARM_SYSCALL_BASE || env->thumb) {
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/* linux syscall */
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if (env->thumb || n == 0) {
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n = env->regs[7];
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