| author | "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> |
| Tue Aug 02 18:28:10 2011 +0200 (2011-08-02) | |
| changeset 2590 | b64cfb67944e |
| parent 1201 | c9967a6e3b25 |
| permissions | -rw-r--r-- |
| yann@1201 | 1 |
Original patch from: gentoo/src/patchsets/glibc/2.9/0070_all_glibc-i386-x86_64-revert-clone-cfi.patch |
| yann@1201 | 2 |
|
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-= BEGIN original header =- |
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revert cfi additions to clone on i386/x86_64 to workaround problems in |
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gcc's unwinder code. this is not a bug in glibc, it triggers problems |
| yann@1201 | 6 |
elsewhere. this cfi code does not gain us a whole lot anyways. |
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|
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http://gcc.gnu.org/ml/gcc/2006-12/msg00293.html |
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|
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-= END original header =- |
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|
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diff -durN glibc-2_9.orig/sysdeps/unix/sysv/linux/i386/clone.S glibc-2_9/sysdeps/unix/sysv/linux/i386/clone.S |
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--- glibc-2_9.orig/sysdeps/unix/sysv/linux/i386/clone.S 2006-12-04 00:12:36.000000000 +0100 |
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+++ glibc-2_9/sysdeps/unix/sysv/linux/i386/clone.S 2009-02-02 22:00:45.000000000 +0100 |
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@@ -120,9 +120,6 @@ |
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ret |
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|
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L(thread_start): |
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- cfi_startproc; |
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- /* Clearing frame pointer is insufficient, use CFI. */ |
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- cfi_undefined (eip); |
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/* Note: %esi is zero. */ |
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movl %esi,%ebp /* terminate the stack frame */ |
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#ifdef RESET_PID |
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@@ -155,7 +152,6 @@ |
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jmp L(haspid) |
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.previous |
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#endif |
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- cfi_endproc; |
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|
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cfi_startproc |
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PSEUDO_END (BP_SYM (__clone)) |
| yann@1201 | 33 |
diff -durN glibc-2_9.orig/sysdeps/unix/sysv/linux/x86_64/clone.S glibc-2_9/sysdeps/unix/sysv/linux/x86_64/clone.S |
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--- glibc-2_9.orig/sysdeps/unix/sysv/linux/x86_64/clone.S 2006-12-04 00:12:36.000000000 +0100 |
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+++ glibc-2_9/sysdeps/unix/sysv/linux/x86_64/clone.S 2009-02-02 22:00:45.000000000 +0100 |
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@@ -89,9 +89,6 @@ |
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ret |
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|
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L(thread_start): |
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- cfi_startproc; |
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- /* Clearing frame pointer is insufficient, use CFI. */ |
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- cfi_undefined (rip); |
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/* Clear the frame pointer. The ABI suggests this be done, to mark |
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the outermost frame obviously. */ |
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xorl %ebp, %ebp |
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@@ -116,7 +113,6 @@ |
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/* Call exit with return value from function call. */ |
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movq %rax, %rdi |
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call HIDDEN_JUMPTARGET (_exit) |
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- cfi_endproc; |
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|
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cfi_startproc; |
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PSEUDO_END (BP_SYM (__clone)) |