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Documented `--force-execve'.

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committer: mfx <mfx> 977488831 +0000
This commit is contained in:
Markus F.X.J. Oberhumer
2000-12-22 12:40:31 +00:00
parent d168d85650
commit 537f9111ae
1 changed files with 6 additions and 3 deletions
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doc/upx.pod
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@@ -562,8 +562,9 @@ Extra options available for this executable format:
Please read the general Linux description first. Please read the general Linux description first.
The generic linux/386 format deompresses to /tmp The generic linux/386 format decompresses to /tmp
and needs /proc filesystem support. and needs /proc filesystem support.
It starts the decompressed program via execve().
Linux/386 is only selected if the specialized linux/elf386 Linux/386 is only selected if the specialized linux/elf386
and linux/sh386 won't recognize a file. and linux/sh386 won't recognize a file.
@@ -573,7 +574,7 @@ Packed programs will be byte-identical to the original after uncompression.
How it works: How it works:
For files which are not ELF and not a script for a known "-c" shell, For files which are not ELF and not a script for a known "-c" shell,
UPX uses kernel exec(), which first requires decompressing to a UPX uses kernel execve(), which first requires decompressing to a
temporary file in the filesystem. Interestingly - temporary file in the filesystem. Interestingly -
because of the good memory management of the Linux kernel - this because of the good memory management of the Linux kernel - this
often does not introduce a noticable delay, and in fact there often does not introduce a noticable delay, and in fact there
@@ -621,7 +622,9 @@ Specific drawbacks:
Extra options available for this executable format: Extra options available for this executable format:
(none) --force-execve Force the use of the generic linux/386 "execve"
format, i.e. do not try the linux/elf386 and
linux/sh386 formats.