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modlib: Implement sh_addralign handling

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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)
This commit is contained in:
YAMAMOTO Takashi
2021-04-14 21:17:07 -05:00
committed by Xiang Xiao
parent 7813b4f88a
commit 51490bad55
5 changed files with 51 additions and 12 deletions
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sched/module/mod_insmod.c
+2
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@@ -64,6 +64,8 @@ static void mod_dumploadinfo(FAR struct mod_loadinfo_s *loadinfo)
binfo(" datastart: %08lx\n", (long)loadinfo->datastart);
binfo(" textsize: %ld\n", (long)loadinfo->textsize);
binfo(" datasize: %ld\n", (long)loadinfo->datasize);
binfo(" textalign: %zu\n", loadinfo->textalign);
binfo(" dataalign: %zu\n", loadinfo->dataalign);
binfo(" filelen: %ld\n", (long)loadinfo->filelen);
binfo(" filfd: %d\n", loadinfo->filfd);
binfo(" symtabidx: %d\n", loadinfo->symtabidx);