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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/powerpc64-linux.elf-fold.map
Vendored
+30 -30
View File
@@ -9,7 +9,7 @@ Linker script and memory map
TARGET(elf64-powerpc)
0x00000000001000bc . = ((0x100000 + SIZEOF_HEADERS) + 0xc)
.text 0x00000000001000bc 0xbbc
.text 0x00000000001000bc 0xba8
*(.text)
.text 0x00000000001000bc 0x328 tmp/powerpc64-linux.elf-fold.o
0x00000000001000bc get_page_mask
@@ -23,47 +23,47 @@ TARGET(elf64-powerpc)
0x00000000001003cc mprotect
0x00000000001003d4 munmap
0x00000000001003dc my_bkpt
.text 0x00000000001003e4 0x894 tmp/powerpc64-linux.elf-main.o
.text 0x00000000001003e4 0x880 tmp/powerpc64-linux.elf-main.o
*(.data)
.data 0x0000000000100c78 0x0 tmp/powerpc64-linux.elf-fold.o
.data 0x0000000000100c78 0x0 tmp/powerpc64-linux.elf-main.o
.data 0x0000000000100c64 0x0 tmp/powerpc64-linux.elf-fold.o
.data 0x0000000000100c64 0x0 tmp/powerpc64-linux.elf-main.o
.sfpr 0x0000000000100c78 0xa4
.sfpr 0x0000000000100c78 0xa4 linker stubs
0x0000000000100c78 _savegpr0_14
0x0000000000100ca0 _savegpr0_24
0x0000000000100cb0 _savegpr0_28
0x0000000000100cc8 _restgpr0_14
0x0000000000100cf0 _restgpr0_24
0x0000000000100d00 _restgpr0_28
.sfpr 0x0000000000100c64 0xa4
.sfpr 0x0000000000100c64 0xa4 linker stubs
0x0000000000100c64 _savegpr0_14
0x0000000000100c8c _savegpr0_24
0x0000000000100c9c _savegpr0_28
0x0000000000100cb4 _restgpr0_14
0x0000000000100cdc _restgpr0_24
0x0000000000100cec _restgpr0_28
.glink 0x0000000000100d20 0x0
.glink 0x0000000000100d20 0x0 linker stubs
.glink 0x0000000000100d08 0x0
.glink 0x0000000000100d08 0x0 linker stubs
.eh_frame 0x0000000000100d1c 0x0
.eh_frame 0x0000000000100d1c 0x0 linker stubs
.eh_frame 0x0000000000100d08 0x0
.eh_frame 0x0000000000100d08 0x0 linker stubs
.rela.dyn 0x0000000000100d20 0x0
.rela.iplt 0x0000000000100d20 0x0 linker stubs
.rela.dyn 0x0000000000100d08 0x0
.rela.iplt 0x0000000000100d08 0x0 linker stubs
.data
LOAD tmp/powerpc64-linux.elf-fold.o
LOAD tmp/powerpc64-linux.elf-main.o
OUTPUT(tmp/powerpc64-linux.elf-fold.bin elf64-powerpc)
.branch_lt 0x0000000000100d20 0x0
.branch_lt 0x0000000000100d20 0x0 linker stubs
.branch_lt 0x0000000000100d08 0x0
.branch_lt 0x0000000000100d08 0x0 linker stubs
.toc 0x0000000000100d20 0x0
.toc 0x0000000000100d20 0x0 tmp/powerpc64-linux.elf-main.o
.toc 0x0000000000100d08 0x0
.toc 0x0000000000100d08 0x0 tmp/powerpc64-linux.elf-main.o
.opd 0x0000000000100d20 0x58
.opd 0x0000000000100d20 0x58 tmp/powerpc64-linux.elf-main.o
0x0000000000100d60 upx_main
.opd 0x0000000000100d08 0x58
.opd 0x0000000000100d08 0x58 tmp/powerpc64-linux.elf-main.o
0x0000000000100d48 upx_main
.iplt 0x0000000000100d78 0x0
.iplt 0x0000000000100d78 0x0 linker stubs
.iplt 0x0000000000100d60 0x0
.iplt 0x0000000000100d60 0x0 linker stubs
.bss 0x0000000000100d78 0x0
.bss 0x0000000000100d78 0x0 tmp/powerpc64-linux.elf-fold.o
.bss 0x0000000000100d78 0x0 tmp/powerpc64-linux.elf-main.o
.bss 0x0000000000100d60 0x0
.bss 0x0000000000100d60 0x0 tmp/powerpc64-linux.elf-fold.o
.bss 0x0000000000100d60 0x0 tmp/powerpc64-linux.elf-main.o