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5 Commits

Author SHA1 Message Date
Konstantin Belousov
ea40bc90e1 The (%esp & 0xf) == 0 should be true before the call instruction is 
executed, for the properly aligned stack.

Reported and tested by:	rstone
Pointy hat to:	kib
MFC after:	3 days
 2011-01-13 23:00:22 +00:00
Konstantin Belousov
88c23d858b Add section .note.GNU-stack for assembly files used by 386 and amd64. 2011-01-07 16:07:51 +00:00
Dimitry Andric
cbbcfbf8b7 Let all .c and .S files under lib/csu consistently use the __FBSDID() 
macro for identification, instead of several different hand-rolled
variants (plain .ident, .ascii, etc).
 2010-12-09 21:31:21 +00:00
Konstantin Belousov
5c1a5e740f Add unwind annotations to the asm part of crt1 on i386. Terminate the 
process with SIGTRAP if _start1() unexpectedly returns.

Reviewed by:	kan
MFC after:	2 weeks
 2010-06-18 11:10:39 +00:00
Konstantin Belousov
c09ba32715 Properly support -fPIE by linking PIE binaries with specially-built 
Scrt1.o instead of crt1.o, since the later is built as non-PIC.

Separate i386-elf crt1.c into the pure assembler part and C code,
supplying all data extracted by assembler stub as explicit parameters [1].
Hide and localize _start1 symbol used as an interface between asm and
C code.

In collaboration with:	kan
Inspired by:	PR i386/127387 [1]
Prodded and tested by:	rdivacky [1]
MFC after:	3 weeks
 2009-12-02 16:34:20 +00:00