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linux-user/loongarch64: Create init_main_thread

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Merge init_thread and target_cpu_copy_regs.
There's no point going through a target_pt_regs intermediate.

Note that init_thread had set crmd in target_pt_regs, but
target_cpu_copy_regs did not copy to env.  This turns out to be
ok because loongarch_cpu_reset_hold initializes CRMD properly.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson
2025-08-28 06:39:25 +10:00
parent 88c9adef2b
commit a2c83f5156
2 changed files with 5 additions and 15 deletions
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linux-user/elfload.c
+1 -8
View File
@@ -533,14 +533,7 @@ static void elf_core_copy_regs(target_elf_gregset_t *regs, const CPUPPCState *en
#define VDSO_HEADER "vdso.c.inc"
static inline void init_thread(struct target_pt_regs *regs,
struct image_info *infop)
{
/*Set crmd PG,DA = 1,0 */
regs->csr.crmd = 2 << 3;
regs->csr.era = infop->entry;
regs->regs[3] = infop->start_stack;
}
#define HAVE_INIT_MAIN_THREAD
/* See linux kernel: arch/loongarch/include/asm/elf.h */
#define ELF_NREG 45
linux-user/loongarch64/cpu_loop.c
+4 -7
View File
@@ -120,13 +120,10 @@ void cpu_loop(CPULoongArchState *env)
}
}
void target_cpu_copy_regs(CPUArchState *env, target_pt_regs *regs)
void init_main_thread(CPUState *cs, struct image_info *info)
{
int i;
for (i = 0; i < 32; i++) {
env->gpr[i] = regs->regs[i];
}
env->pc = regs->csr.era;
CPUArchState *env = cpu_env(cs);
env->pc = info->entry;
env->gpr[3] = info->start_stack;
}