TCG, fix: fix TCG mode #197
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xiezyang
commented
Dec 12, 2025
xiezyang
commented
- Isolate TCG mode implementation from other optimizations
- Redefine tb_find, tb_gen_code, cpu_tb_exec for TCG mode
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linux-user/main.c
Outdated
| exec_path = argv[optind]; | ||
| #ifdef CONFIG_LATX | ||
| real_path = realpath(exec_path, (char *)malloc(MAX_PATH)); | ||
| #endif |
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The realpath() call is now wrapped in #ifdef CONFIG_LATX, so in non-LATX builds real_path remains NULL. The readlink handler in linux-user/syscall.c falls back to this global when realpath(exec_path) fails (e.g., guest readlink("/proc/self/exe") after the binary has been removed or when the path exceeds PATH_MAX), and will dereference the NULL pointer. Move the initialization out of the CONFIG_LATX guard so real_path is populated for all user-mode runs.
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Signed-off-by: Zhaoyang Xie <xie_zyang@163.com>
Signed-off-by: Zhaoyang Xie <xie_zyang@163.com>
Signed-off-by: Zhaoyang Xie <xie_zyang@163.com>
Signed-off-by: Zhaoyang Xie <xie_zyang@163.com>
Signed-off-by: Zhaoyang Xie <xie_zyang@163.com>
Signed-off-by: Zhaoyang Xie <xie_zyang@163.com>
Signed-off-by: liuchaoyi <liuchaoyi@loongson.cn>
translate atomic insns without alignment check, use SIGBUS to interpret.
Signed-off-by: Zhaoyang Xie <xie_zyang@163.com>
The HID ioctl handling code was incorrectly intercepting v4l2 ioctl commands due to overlapping ioctl number (nr) values. Specifically, v4l2 commands with nr=4 were matching HIDIOCGRAWNAME(0) which also has nr=4.
Signed-off-by: liuchaoyi <liuchaoyi@loongson.cn>
… memory operand Signed-off-by: liuchaoyi <liuchaoyi@loongson.cn>
Signed-off-by: liuchaoyi <liuchaoyi@loongson.cn>
Signed-off-by: Zhaoyang Xie <xie_zyang@163.com>
Signed-off-by: Zhaoyang Xie <xie_zyang@163.com>
… cpu_tb_exec Signed-off-by: Zhaoyang Xie <xie_zyang@163.com>
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