Date: Fri, 23 Mar 2012 17:54:06 +0000 (UTC) From: Oleksandr Tymoshenko <gonzo@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r233378 - head/libexec/rtld-elf/mips Message-ID: <201203231754.q2NHs6Zh087295@svn.freebsd.org>
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Author: gonzo Date: Fri Mar 23 17:54:06 2012 New Revision: 233378 URL: http://svn.freebsd.org/changeset/base/233378 Log: Before jumping to application's entry point set ra == pc in order to let backtracing routine know to go no further. Modified: head/libexec/rtld-elf/mips/rtld_start.S Modified: head/libexec/rtld-elf/mips/rtld_start.S ============================================================================== --- head/libexec/rtld-elf/mips/rtld_start.S Fri Mar 23 17:24:52 2012 (r233377) +++ head/libexec/rtld-elf/mips/rtld_start.S Fri Mar 23 17:54:06 2012 (r233378) @@ -80,7 +80,8 @@ LEAF(rtld_start) move a0, s0 /* stack pointer */ move t9, v0 PTR_SUBU sp, 4*SZREG /* ABI requires to reserve memory for 4 regs */ - jr t9 /* _start(sp, cleanup, obj); */ + move ra,t9 /* RA == PC signals backtrace routine to stop */ + j t9 /* _start(sp, cleanup, obj); */ move a3, s3 /* restore ps_strings */ END(rtld_start)
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