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musl/crt/i386/crt1.s

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add support for init/finit (constructors and destructors) this is mainly in hopes of supporting c++ (not yet possible for other reasons) but will also help applications/libraries which use (and more often, abuse) the gcc __attribute__((__constructor__)) feature in "C" code. x86_64 and arm versions of the new startup asm are untested and may have minor problems.
2012-02-06 19:39:09 +00:00
.weak _init
.weak _fini
initial check-in, version 0.5.0
2011-02-12 05:22:29 +00:00
.text
.global _start
_start:
xorl %ebp,%ebp
popl %ecx
movl %esp,%eax
andl $-16,%esp
pushl %esp
pushl %esp
pushl %edx
remove attempts to be pie-compatible from i386 crt1.s it does not work; after further consideration, a separate Scrt1.s for pie really is essential. it would be nice if the unified approach worked, but the linker fails to generate the correct PLT entries and instead puts textrels in the main program, which don't work because the kernel maps the text read-only. new Scrt1.s will be committed soon in place of this.
2012-05-03 00:56:55 +00:00
pushl $_fini
pushl $_init
initial check-in, version 0.5.0
2011-02-12 05:22:29 +00:00
pushl %eax
pushl %ecx
remove attempts to be pie-compatible from i386 crt1.s it does not work; after further consideration, a separate Scrt1.s for pie really is essential. it would be nice if the unified approach worked, but the linker fails to generate the correct PLT entries and instead puts textrels in the main program, which don't work because the kernel maps the text read-only. new Scrt1.s will be committed soon in place of this.
2012-05-03 00:56:55 +00:00
pushl $main
initial check-in, version 0.5.0
2011-02-12 05:22:29 +00:00
call __libc_start_main
make startup code PIE-compatible
2011-02-22 03:26:31 +00:00
1: jmp 1b