diff options
Diffstat (limited to 'toolchain/gcc/patches/6.2.0/930-fix-mips-noexecstack.patch')
| -rw-r--r-- | toolchain/gcc/patches/6.2.0/930-fix-mips-noexecstack.patch | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/toolchain/gcc/patches/6.2.0/930-fix-mips-noexecstack.patch b/toolchain/gcc/patches/6.2.0/930-fix-mips-noexecstack.patch new file mode 100644 index 0000000000..2a99840b63 --- /dev/null +++ b/toolchain/gcc/patches/6.2.0/930-fix-mips-noexecstack.patch @@ -0,0 +1,111 @@ +From da45b3fde60095756f5f6030f6012c23a3d34429 Mon Sep 17 00:00:00 2001 +From: Andrew McDonnell <bugs@andrewmcdonnell.net> +Date: Fri, 3 Oct 2014 19:09:00 +0930 +Subject: Add .note.GNU-stack section + +See http://lists.busybox.net/pipermail/uclibc/2014-October/048671.html +Below copied from https://gcc.gnu.org/ml/gcc-patches/2014-09/msg02430.html + +Re: [Patch, MIPS] Add .note.GNU-stack section + + From: Steve Ellcey <sellcey at mips dot com> + +On Wed, 2014-09-10 at 10:15 -0700, Eric Christopher wrote: +> +> +> On Wed, Sep 10, 2014 at 9:27 AM, <pinskia@gmail.com> wrote: + +> This works except you did not update the assembly files in +> libgcc or glibc. We (Cavium) have the same patch in our tree +> for a few released versions. + +> Mind just checking yours in then Andrew? + +> Thanks! +> -eric + +I talked to Andrew about what files he changed in GCC and created and +tested this new patch. Andrew also mentioned changing some assembly +files in glibc but I don't see any use of '.section .note.GNU-stack' in +any assembly files in glibc (for any platform) so I wasn't planning on +creating a glibc to add them to mips glibc assembly language files. + +OK to check in this patch? + +Steve Ellcey +sellcey@mips.com + + + +2014-09-26 Steve Ellcey <sellcey@mips.com> +--- + gcc/config/mips/mips.c | 3 +++ + libgcc/config/mips/crti.S | 4 ++++ + libgcc/config/mips/crtn.S | 3 +++ + libgcc/config/mips/mips16.S | 4 ++++ + libgcc/config/mips/vr4120-div.S | 4 ++++ + 5 files changed, 18 insertions(+) + +--- a/gcc/config/mips/mips.c ++++ b/gcc/config/mips/mips.c +@@ -20228,6 +20228,9 @@ mips_promote_function_mode (const_tree t + #undef TARGET_HARD_REGNO_SCRATCH_OK + #define TARGET_HARD_REGNO_SCRATCH_OK mips_hard_regno_scratch_ok + ++#undef TARGET_ASM_FILE_END ++#define TARGET_ASM_FILE_END file_end_indicate_exec_stack ++ + struct gcc_target targetm = TARGET_INITIALIZER; + + #include "gt-mips.h" +--- a/libgcc/config/mips/crti.S ++++ b/libgcc/config/mips/crti.S +@@ -21,6 +21,10 @@ a copy of the GCC Runtime Library Except + see the files COPYING3 and COPYING.RUNTIME respectively. If not, see + <http://www.gnu.org/licenses/>. */ + ++ ++/* An executable stack is *not* required for these functions. */ ++ .section .note.GNU-stack,"",%progbits ++ + /* 4 slots for argument spill area. 1 for cpreturn, 1 for stack. + Return spill offset of 40 and 20. Aligned to 16 bytes for n32. */ + +--- a/libgcc/config/mips/crtn.S ++++ b/libgcc/config/mips/crtn.S +@@ -21,6 +21,9 @@ a copy of the GCC Runtime Library Except + see the files COPYING3 and COPYING.RUNTIME respectively. If not, see + <http://www.gnu.org/licenses/>. */ + ++/* An executable stack is *not* required for these functions. */ ++ .section .note.GNU-stack,"",%progbits ++ + /* 4 slots for argument spill area. 1 for cpreturn, 1 for stack. + Return spill offset of 40 and 20. Aligned to 16 bytes for n32. */ + +--- a/libgcc/config/mips/mips16.S ++++ b/libgcc/config/mips/mips16.S +@@ -48,6 +48,10 @@ see the files COPYING3 and COPYING.RUNTI + values using the soft-float calling convention, but do the actual + operation using the hard floating point instructions. */ + ++/* An executable stack is *not* required for these functions. */ ++ .section .note.GNU-stack,"",%progbits ++ .previous ++ + #if defined _MIPS_SIM && (_MIPS_SIM == _ABIO32 || _MIPS_SIM == _ABIO64) + + /* This file contains 32-bit assembly code. */ +--- a/libgcc/config/mips/vr4120-div.S ++++ b/libgcc/config/mips/vr4120-div.S +@@ -26,6 +26,10 @@ see the files COPYING3 and COPYING.RUNTI + -mfix-vr4120. div and ddiv do not give the correct result when one + of the operands is negative. */ + ++/* An executable stack is *not* required for these functions. */ ++ .section .note.GNU-stack,"",%progbits ++ .previous ++ + .set nomips16 + + #define DIV \ |