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size and performance penalty to profiling applications this way, as well as
Heisenberg effects, where the act of measuring changes what is measured.
There are better tools for doing profiling, such as OProfile, that do not
require gcc to instrument the application code.
-Erik
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have it. It is used by the boehm gc, amoung other things.
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for gmon profiling support for the SuperH target.
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generate a crt0 and crt1 file. Most arches still need
to be updated to call __uClibc_start_main() rather than
__uClibc_main().
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build a crt0.o and a crt1.o. crt1.o will support ctors and dtors if
such support is enabled. One more gratuitous toolchain support issue
is thereby removed...
-Erik
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configurable, so people who do not need or want ctor/dtor support
can disable it and make their binaries a little bit smaller.
-Erik
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how uClibc handles _init and _fini, allowing shared lib constructors and
destructors to initialize things in the correct sequence. Stefan ported the SH
architecture. I then ported x86, arm, and mips. x86 and arm are working fine,
but I don't think I quite got things correct for mips.
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and envp was a very small number and not an address. I think this fixes
most of the SH platform.
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are still seg-faulting.
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Edie C. Dost has some concerns about the perl script used to general crti.o and
crtn.o and added their own versions. These versions will win since they are
built last,
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(undefined reference to `main') when the .o file containing main was contained
in an static library(a '.a' ar archive). It turns out that due to its single
pass nature, GNU ld was failing to pull it into the build. This sticks a dummy
reference to main() into crt0.o, so that when an application is linked with the
main() function in a static library, we can be sure that main() actually gets
linked in.
-Erik
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and Personal Systems. Thanks!
-Erik
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