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Thanks. Here's the version that I'm going to commit now, Andreas ============================================================ Index: sysdeps/unix/sysv/linux/x86_64/setcontext.S --- sysdeps/unix/sysv/linux/x86_64/setcontext.S 31 Aug 2002 08:05:51 -0000 1.2 +++ sysdeps/unix/sysv/linux/x86_64/setcontext.S 22 Jan 2004 08:16:49 -0000 @@ -1,5 +1,5 @@ /* Install given context. - Copyright (C) 2002 Free Software Foundation, Inc. + Copyright (C) 2002, 2004 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Andreas Jaeger <aj@suse.de>, 2002. @@ -35,6 +35,7 @@ ENTRY(__setcontext) /* Save argument since syscall will destroy it. */ pushq %rdi + cfi_adjust_cfa_offset(8) /* Set the signal mask with rt_sigprocmask (SIG_SETMASK, mask, NULL, _NSIG/8). */ @@ -45,6 +46,7 @@ ENTRY(__setcontext) movq $__NR_rt_sigprocmask, %rax syscall popq %rdi /* Reload %rdi, adjust stack. */ + cfi_adjust_cfa_offset(-8) cmpq $-4095, %rax /* Check %rax for error. */ jae SYSCALL_ERROR_LABEL /* Jump to error handler if error. */ @@ -57,6 +59,16 @@ ENTRY(__setcontext) /* Load the new stack pointer, the preserved registers and registers used for passing args. */ + cfi_def_cfa(%rdi, 0) + cfi_offset(%rbx,oRBX) + cfi_offset(%rbp,oRBP) + cfi_offset(%r12,oR12) + cfi_offset(%r13,oR13) + cfi_offset(%r14,oR14) + cfi_offset(%r15,oR15) + cfi_offset(%rsp,oRSP) + cfi_offset(%rip,oRIP) + movq oRSP(%rdi), %rsp movq oRBX(%rdi), %rbx movq oRBP(%rdi), %rbp @@ -78,6 +90,10 @@ ENTRY(__setcontext) /* Setup finally %rdi. */ movq oRDI(%rdi), %rdi + + /* End FDE here, we fall into another context. */ + cfi_endproc + cfi_startproc /* Clear rax to indicate success. */ xorq %rax, %rax -- Andreas Jaeger, aj@suse.de, http://www.suse.de/~aj SuSE Linux AG, Maxfeldstr. 5, 90409 Nürnberg, Germany GPG fingerprint = 93A3 365E CE47 B889 DF7F FED1 389A 563C C272 A126
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