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More Control Flow Integrity (Intel)

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More ENDBRxx for CALL *%RDX for 'getbit'.
amd64: LEA xxx(%rip),%reg and STRCON section,
    instead of CALL; .asciz "..."; POP %reg
(Not for PE due to WINDOWS_BACK binary compatibility.)
i386 string constants still use call-.asciz-pop because no (%rip)
	modified:   ../misc/testsuite/upx_testsuite_1-expected_sha256sums.sh
	modified:   p_lx_elf.cpp
	modified:   stub/src/amd64-linux.elf-entry.S
	modified:   stub/src/amd64-linux.elf-main2.c
	modified:   stub/src/amd64-linux.elf-so_entry.S
	modified:   stub/src/amd64-linux.shlib-init.S
	modified:   stub/src/amd64-win64.pe.S
	modified:   stub/src/i386-linux.elf-entry.S
	modified:   stub/src/i386-linux.elf-so_entry.S
	modified:   stub/src/upxfd_android.c
           plus generated *.h *.map *.dump
This commit is contained in:
John Reiser
2024-09-20 13:41:43 -07:00
parent d55fdf2205
commit 3403b87cb7
19 changed files with 2258 additions and 2223 deletions
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src/p_lx_elf.cpp
+6
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@@ -1645,6 +1645,9 @@ PackLinuxElf64::buildLinuxLoader(
"LZMA_DAISY,LZMA_ELF00,LZMA_DEC20,LZMA_DEC30");
}
len += snprintf(&sec[len], sizeof(sec) - len, ",%s", "EXP_TAIL,SO_TAIL,SO_MAIN");
if (hasLoaderSection("STRCON")) {
len += snprintf(&sec[len], sizeof(sec) - len, ",%s", "STRCON");
}
(void)len;
NO_printf("\n%s\n", sec);
addLoader(sec, nullptr);
@@ -1680,6 +1683,9 @@ PackLinuxElf64::buildLinuxLoader(
"LZMA_DAISY,LZMA_ELF00,LZMA_DEC20,LZMA_DEC30");
}
len += snprintf(&sec[len], sizeof(sec) - len, ",%s", "EXP_TAIL,SYSCALLS");
if (hasLoaderSection("STRCON")) {
len += snprintf(&sec[len], sizeof(sec) - len, ",%s", "STRCON");
}
(void)len;
NO_printf("\n%s\n", sec);
addLoader(sec, nullptr);