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Each PROT_WRITE segment has implicit .bss on end of last page (64-bit only for now);

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Also  workaround kernel bug invoking the escape hatch on arm64 (aarch64).
https://github.com/upx/upx/issues/611
This commit is contained in:
John Reiser
2022-10-27 11:01:37 -07:00
committed by Markus F.X.J. Oberhumer
parent 7dd2cdea1e
commit 50a6698715
10 changed files with 645 additions and 589 deletions
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src/stub/tmp/arm64-linux.elf-fold.map
Vendored
+30 -30
View File
@@ -8,44 +8,44 @@ Linker script and memory map
0x00000000001000bc . = ((0x100000 + SIZEOF_HEADERS) + 0xc)
.text 0x00000000001000bc 0xa10
.text 0x00000000001000bc 0xa0c
*(.text)
.text 0x00000000001000bc 0x244 tmp/arm64-linux.elf-fold.o
0x0000000000100234 my_bkpt
0x000000000010023c exit
0x0000000000100244 read
0x0000000000100250 write
0x000000000010025c close
0x0000000000100268 getpid
0x0000000000100274 brk
0x0000000000100280 munmap
0x000000000010028c mprotect
0x0000000000100298 mmap_privanon
0x00000000001002a8 mmap
0x00000000001002b4 unlink
0x00000000001002c8 readlink
0x00000000001002d0 open
0x00000000001002ec __clear_cache
.text 0x0000000000100300 0x7cc tmp/arm64-linux.elf-main.o
0x0000000000100964 upx_main
.text 0x00000000001000bc 0x268 tmp/arm64-linux.elf-fold.o
0x0000000000100258 my_bkpt
0x0000000000100260 exit
0x0000000000100268 read
0x0000000000100274 write
0x0000000000100280 close
0x000000000010028c getpid
0x0000000000100298 brk
0x00000000001002a4 munmap
0x00000000001002b0 mprotect
0x00000000001002bc mmap_privanon
0x00000000001002cc mmap
0x00000000001002d8 unlink
0x00000000001002ec readlink
0x00000000001002f4 open
0x0000000000100310 __clear_cache
.text 0x0000000000100324 0x7a4 tmp/arm64-linux.elf-main.o
0x0000000000100960 upx_main
*(.data)
.data 0x0000000000100acc 0x0 tmp/arm64-linux.elf-fold.o
.data 0x0000000000100acc 0x0 tmp/arm64-linux.elf-main.o
.data 0x0000000000100ac8 0x0 tmp/arm64-linux.elf-fold.o
.data 0x0000000000100ac8 0x0 tmp/arm64-linux.elf-main.o
.iplt 0x0000000000100acc 0x0
.iplt 0x0000000000100acc 0x0 tmp/arm64-linux.elf-fold.o
.iplt 0x0000000000100ac8 0x0
.iplt 0x0000000000100ac8 0x0 tmp/arm64-linux.elf-fold.o
.rela.dyn 0x0000000000100ad0 0x0
.rela.iplt 0x0000000000100ad0 0x0 tmp/arm64-linux.elf-fold.o
.rela.dyn 0x0000000000100ac8 0x0
.rela.iplt 0x0000000000100ac8 0x0 tmp/arm64-linux.elf-fold.o
.data
LOAD tmp/arm64-linux.elf-fold.o
LOAD tmp/arm64-linux.elf-main.o
OUTPUT(tmp/arm64-linux.elf-fold.bin elf64-littleaarch64)
.igot.plt 0x0000000000100ad0 0x0
.igot.plt 0x0000000000100ad0 0x0 tmp/arm64-linux.elf-fold.o
.igot.plt 0x0000000000100ac8 0x0
.igot.plt 0x0000000000100ac8 0x0 tmp/arm64-linux.elf-fold.o
.bss 0x0000000000100acc 0x0
.bss 0x0000000000100acc 0x0 tmp/arm64-linux.elf-fold.o
.bss 0x0000000000100acc 0x0 tmp/arm64-linux.elf-main.o
.bss 0x0000000000100ac8 0x0
.bss 0x0000000000100ac8 0x0 tmp/arm64-linux.elf-fold.o
.bss 0x0000000000100ac8 0x0 tmp/arm64-linux.elf-main.o