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fix risc-v init task gp(global pointer register) bug

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acevest
2019-09-25 23:29:26 +08:00
parent b1b2d1eabc
commit 59c8e69af5
1 changed files with 2 additions and 2 deletions
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4
arch/risc-v/common/tos_cpu.c
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@@ -101,8 +101,8 @@ __KERNEL__ k_stack_t *cpu_task_stk_init(void *entry,
#undef _V #undef _V
} }
cpu_data_t gp = regs->gp; cpu_data_t gp = 0;
asm("mv %0, gp"::"r"(gp)); __ASM__ __VOLATILE__ ("mv %0, gp":"=r"(gp));
regs->gp = (cpu_data_t)gp; // gp: global pointer regs->gp = (cpu_data_t)gp; // gp: global pointer
regs->a0 = (cpu_data_t)arg; // a0: argument regs->a0 = (cpu_data_t)arg; // a0: argument