Error: module/mod_insmod.c:203:3: error: 'strncpy' specified bound 16 equals destination size [-Werror=stringop-truncation]
203 | strncpy(modp->modname, modname, MODLIB_NAMEMAX);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
wqueue/kwork_thread.c: In function 'work_start_lowpri':
Error: wqueue/kwork_thread.c:212:22: error: '%lx' directive output may be truncated writing between 1 and 16 bytes into a region of size 14 [-Werror=format-truncation=]
212 | snprintf(args, 16, "0x%" PRIxPTR, (uintptr_t)wqueue);
local/local_sockif.c: In function 'local_getsockname':
Error: local/local_sockif.c:392:11: error: 'strncpy' specified bound depends on the length of the source argument [-Werror=stringop-overflow=]
392 | strncpy(unaddr->sun_path, conn->lc_path, namelen);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
chip/esp32_wifi_utils.c: In function 'esp_wifi_scan_event_parse':
Error: chip/esp32_wifi_utils.c:373:37: error: argument to 'sizeof' in 'memset' call is the same expression as the destination; did you mean to dereference it? [-Werror=sizeof-pointer-memaccess]
memset(ap_list_buffer, 0x0, sizeof(ap_list_buffer));
^
stdio/lib_fputs.c: In function 'fputs':
Error: stdio/lib_fputs.c:99:9: error: nonnull argument 's' compared to NULL [-Werror=nonnull-compare]
if (s == NULL || stream == NULL)
^
Error: stdio/lib_fputs.c:99:27: error: nonnull argument 'stream' compared to NULL [-Werror=nonnull-compare]
if (s == NULL || stream == NULL)
^
stdio/lib_vfprintf.c: In function 'vfprintf':
Error: stdio/lib_vfprintf.c:40:6: error: nonnull argument 'stream' compared to NULL [-Werror=nonnull-compare]
if (stream)
^
string/lib_strdup.c: In function 'strdup':
Error: string/lib_strdup.c:39:6: error: nonnull argument 's' compared to NULL [-Werror=nonnull-compare]
if (s)
^
string/lib_strndup.c: In function 'strndup':
Error: string/lib_strndup.c:56:6: error: nonnull argument 's' compared to NULL [-Werror=nonnull-compare]
if (s)
^
string/lib_strpbrk.c: In function 'strpbrk':
Error: string/lib_strpbrk.c:39:7: error: nonnull argument 'str' compared to NULL [-Werror=nonnull-compare]
if (!str || !charset)
^~~~
Error: string/lib_strpbrk.c:39:15: error: nonnull argument 'charset' compared to NULL [-Werror=nonnull-compare]
if (!str || !charset)
^~~~~~~~
string/lib_strrchr.c: In function 'strrchr':
Error: string/lib_strrchr.c:40:6: error: nonnull argument 's' compared to NULL [-Werror=nonnull-compare]
if (s)
^
Error: time/lib_asctimer.c:73:50: error: '%d' directive output may be truncated writing between 1 and 11 bytes into a region of size between 0 and 12 [-Werror=format-truncation=]
snprintf(buf, 26, "%.3s %.3s%3d %.2d:%.2d:%.2d %d\n",
^~
time/lib_asctimer.c:73:21: note: directive argument in the range [-2147481748, 2147483647]
snprintf(buf, 26, "%.3s %.3s%3d %.2d:%.2d:%.2d %d\n",
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
time/lib_asctimer.c:73:3: note: 'snprintf' output between 17 and 68 bytes into a destination of size 26
snprintf(buf, 26, "%.3s %.3s%3d %.2d:%.2d:%.2d %d\n",
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g_wday_name[tp->tm_wday], g_mon_name[tp->tm_mon],
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
tp->tm_mday, tp->tm_hour, tp->tm_min, tp->tm_sec,
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1900 + tp->tm_year);
~~~~~~~~~~~~~~~~~~~
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Pros:
* Reduce code differences
* Smaller allocations for !CONFIG_ARCH_USE_MODULE_TEXT
Cons:
* Likely to use more memory for !CONFIG_ARCH_USE_MODULE_TEXT in total
Tested with:
* sim:module on macOS
* esp32-devkit:nsh + CONFIG_MODULE on qemu
* lm3s6965-ek:qemu-protected + CONFIG_EXAMPLES_SOTEST on qemu
I've seen a module with 16 bytes .rodata alignment for xmm operations.
It was getting SEGV on sim/Linux because of the alignment issue.
The same module binary seems working fine after applying this patch.
Also, tested on sim/macOS and esp32 on qemu,
using a module with an artificially large alignment. (64 bytes)
* include: Introduce elf64.h and elf.h
Added elf64.h for 64bit ELF support and moved common definitions
from elf32.h to elf.h. Also introduced Elf_xxx to be used in
common libraries such as binfmt.
* binfmt, include, modlib, module: Add support for ELF64
Elf_xxx must be used instead of Elf32_xxx to support ELF64.
To use ELF64, CONFIG_ELF_64BIT must be enabled.
* binfmt, modlib: Add support for relocate address
* arch: risc-v: Add include/elf.h
* libs: machine: Add risc-v related files.
NOTE: Currently only supports ELF64
* boards: maix-bit: Add elf and posix_spawn configurations
* boards: maix-bit: Add support for module configuration
* Simplify EINTR/ECANCEL error handling
1. Add semaphore uninterruptible wait function
2 .Replace semaphore wait loop with a single uninterruptible wait
3. Replace all sem_xxx to nxsem_xxx
* Unify the void cast usage
1. Remove void cast for function because many place ignore the returned value witout cast
2. Replace void cast for variable with UNUSED macro
