File boost-ppc64-abiv2-context.patch of Package boost

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File boost-ppc64-abiv2-context.patch of Package boost (Revision 6640b242637393024d7603854bcedf1a)

Currently displaying revision 6640b242637393024d7603854bcedf1a , Show latest

diff --git a/boost/context/detail/config.hpp b/boost/context/detail/config.hpp
--- a/boost/context/detail/config.hpp
+++ b/boost/context/detail/config.hpp
@@ -35,4 +35,15 @@
 # include <boost/config/auto_link.hpp>
 #endif
 
+#undef BOOST_CONTEXT_CALLDECL
+#if (defined(i386) || defined(__i386__) || defined(__i386) \
+    || defined(__i486__) || defined(__i586__) || defined(__i686__) \
+    || defined(__X86__) || defined(_X86_) || defined(__THW_INTEL__) \
+    || defined(__I86__) || defined(__INTEL__) || defined(__IA32__) \
+    || defined(_M_IX86) || defined(_I86_)) && defined(BOOST_WINDOWS)
+# define BOOST_CONTEXT_CALLDECL __cdecl
+#else
+# define BOOST_CONTEXT_CALLDECL
+#endif
+
 #endif // BOOST_CONTEXT_DETAIL_CONFIG_H
diff --git a/boost/context/fcontext.hpp b/boost/context/fcontext.hpp
--- a/boost/context/fcontext.hpp
+++ b/boost/context/fcontext.hpp
@@ -24,51 +24,11 @@ typedef int intptr_t;
 # include BOOST_ABI_PREFIX
 #endif
 
-// x86_64
-// test x86_64 before i386 because icc might
-// define __i686__ for x86_64 too
-#if defined(__x86_64__) || defined(__x86_64) \
-    || defined(__amd64__) || defined(__amd64) \
-    || defined(_M_X64) || defined(_M_AMD64)
-# if defined(BOOST_WINDOWS)
-#  include <boost/context/detail/fcontext_x86_64_win.hpp>
-# else
-#  include <boost/context/detail/fcontext_x86_64.hpp>
-# endif
-// i386
-#elif defined(i386) || defined(__i386__) || defined(__i386) \
-    || defined(__i486__) || defined(__i586__) || defined(__i686__) \
-    || defined(__X86__) || defined(_X86_) || defined(__THW_INTEL__) \
-    || defined(__I86__) || defined(__INTEL__) || defined(__IA32__) \
-    || defined(_M_IX86) || defined(_I86_)
-# if defined(BOOST_WINDOWS)
-#  include <boost/context/detail/fcontext_i386_win.hpp>
-# else
-#  include <boost/context/detail/fcontext_i386.hpp>
-# endif
-// arm
-#elif defined(__arm__) || defined(__thumb__) || defined(__TARGET_ARCH_ARM) \
-    || defined(__TARGET_ARCH_THUMB) || defined(_ARM) || defined(_M_ARM)
-# include <boost/context/detail/fcontext_arm.hpp>
-// mips
-#elif (defined(__mips) && __mips == 1) || defined(_MIPS_ISA_MIPS1) \
-    || defined(_R3000)
-# include <boost/context/detail/fcontext_mips.hpp>
-// powerpc
-#elif defined(__powerpc) || defined(__powerpc__) || defined(__ppc) \
-    || defined(__ppc__) || defined(_ARCH_PPC) || defined(__POWERPC__) \
-    || defined(__PPCGECKO__) || defined(__PPCBROADWAY) || defined(_XENON)
-# include <boost/context/detail/fcontext_ppc.hpp>
-#elif defined(__sparc__) || defined(__sparc)
-// sparc or sparc64
-# include <boost/context/detail/fcontext_sparc.hpp>
-#else
-# error "platform not supported"
-#endif
-
 namespace boost {
 namespace context {
 
+typedef void fcontext_t;
+
 extern "C" BOOST_CONTEXT_DECL
 intptr_t BOOST_CONTEXT_CALLDECL jump_fcontext( fcontext_t * ofc, fcontext_t const* nfc, intptr_t vp, bool preserve_fpu = true);
 extern "C" BOOST_CONTEXT_DECL
diff --git a/libs/context/build/Jamfile.v2 b/libs/context/build/Jamfile.v2
--- a/libs/context/build/Jamfile.v2
+++ b/libs/context/build/Jamfile.v2
@@ -210,6 +210,16 @@ alias asm_context_sources
    ;
 
 alias asm_context_sources
+   : asm/make_ppc64_linux_elf_gas.S
+     asm/jump_ppc64_linux_elf_gas.S
+   : <address-model>64
+     <architecture>power
+     <binary-format>elf
+     <target-os>linux
+     <toolset>gcc
+   ;
+
+alias asm_context_sources
    : [ make asm/make_ppc64_sysv_elf_gas.o : asm/make_ppc64_sysv_elf_gas.S : @gas ]
      [ make asm/jump_ppc64_sysv_elf_gas.o : asm/jump_ppc64_sysv_elf_gas.S : @gas ]
    : <address-model>64
diff --git a/libs/context/src/asm/jump_ppc64_linux_elf_gas.S b/libs/context/src/asm/jump_ppc64_linux_elf_gas.S
--- /dev/null
+++ b/libs/context/src/asm/jump_ppc64_linux_elf_gas.S
@@ -0,0 +1,267 @@
+/*
+            Copyright Oliver Kowalke 2009.
+   Distributed under the Boost Software License, Version 1.0.
+      (See accompanying file LICENSE_1_0.txt or copy at
+          http://www.boost.org/LICENSE_1_0.txt)
+*/
+
+/*******************************************************
+ *                                                     *
+ *  -------------------------------------------------  *
+ *  |  0  |  1  |  2  |  3  |  4  |  5  |  6  |  7  |  *
+ *  -------------------------------------------------  *
+ *  |  0  |  4  |  8  |  12 |  16 |  20 |  24 |  28 |  *
+ *  -------------------------------------------------  *
+ *  |    F14    |    F15    |    F16    |    F17    |  *
+ *  -------------------------------------------------  *
+ *  -------------------------------------------------  *
+ *  |  8  |  9  |  10 |  11 |  12 |  13 |  14 |  15 |  *
+ *  -------------------------------------------------  *
+ *  |  32 |  36 |  40 |  44 |  48 |  52 |  56 |  60 |  *
+ *  -------------------------------------------------  *
+ *  |    F18    |    F19    |    F20    |    F21    |  *
+ *  -------------------------------------------------  *
+ *  -------------------------------------------------  *
+ *  |  16 |  17 |  18 |  19 |  20 |  21 |  22 |  23 |  *
+ *  -------------------------------------------------  *
+ *  |  64 |  68 |  72 |  76 |  80 |  84 |  88 |  92 |  *
+ *  -------------------------------------------------  *
+ *  |    F22    |    F23    |    F24    |    F25    |  *
+ *  -------------------------------------------------  *
+ *  -------------------------------------------------  *
+ *  |  24 |  25 |  26 |  27 |  28 |  29 |  30 |  31 |  *
+ *  -------------------------------------------------  *
+ *  |  96 | 100 | 104 | 108 | 112 | 116 | 120 | 124 |  *
+ *  -------------------------------------------------  *
+ *  |    F26    |    F27    |    F28    |    F29    |  *
+ *  -------------------------------------------------  *
+ *  -------------------------------------------------  *
+ *  |  32 |  33 |  34 |  35 |  36 |  37 |  38 |  39 |  *
+ *  -------------------------------------------------  *
+ *  | 128 | 132 | 136 | 140 | 144 | 148 | 152 | 156 |  *
+ *  -------------------------------------------------  *
+ *  |    F30    |    F31    |   fpscr   |    TOC    |  *
+ *  -------------------------------------------------  *
+ *  -------------------------------------------------  *
+ *  |  40 |  41 |  42 |  43 |  44 |  45 |  46 |  47 |  *
+ *  -------------------------------------------------  *
+ *  | 160 | 164 | 168 | 172 | 176 | 180 | 184 | 188 |  *
+ *  -------------------------------------------------  *
+ *  |    R14    |    R15    |     R16   |    R17    |  *
+ *  -------------------------------------------------  *
+ *  -------------------------------------------------  *
+ *  |  48 |  49 |  50 |  51 |  52 |  53 |  54 |  55 |  *
+ *  -------------------------------------------------  *
+ *  | 192 | 196 | 200 | 204 | 208 | 212 | 216 | 220 |  *
+ *  -------------------------------------------------  *
+ *  |    R18    |    R19    |    R20    |    R21    |  *
+ *  -------------------------------------------------  *
+ *  -------------------------------------------------  *
+ *  |  56 |  57 |  58 |  59 |  60 |  61 |  62 |  63 |  *
+ *  -------------------------------------------------  *
+ *  | 224 | 228 | 232 | 236 | 240 | 244 | 248 | 252 |  *
+ *  -------------------------------------------------  *
+ *  |    R22    |    R23    |    R24    |    R25    |  *
+ *  -------------------------------------------------  *
+ *  -------------------------------------------------  *
+ *  |  64 |  65 |  66 |  67 |  68 |  69 |  70 |  71 |  *
+ *  -------------------------------------------------  *
+ *  | 256 | 260 | 264 | 268 | 272 | 276 | 280 | 284 |  *
+ *  -------------------------------------------------  *
+ *  |    R26    |    R27    |    R28    |    R29    |  *
+ *  -------------------------------------------------  *
+ *  -------------------------------------------------  *
+ *  |  72 |  73 |  74 |  75 |  76 |  77 |  78 |  79 |  *
+ *  -------------------------------------------------  *
+ *  | 288 | 292 | 296 | 300 | 304 | 308 | 312 | 316 |  *
+ *  -------------------------------------------------  *
+ *  -------------------------------------------------  *
+ *  |    R30    |    R31    |     CR    |     LR    |  *
+ *  -------------------------------------------------  *
+ *  -------------------------------------------------  *
+ *  |  80 |  81 |                                   |  *
+ *  -------------------------------------------------  *
+ *  | 320 | 324 |                                   |  *
+ *  -------------------------------------------------  *
+ *  |    PC     |                                   |  *
+ *  -------------------------------------------------  *
+ *                                                     *
+ *******************************************************/
+
+.globl jump_fcontext
+#if _CALL_ELF == 2
+	.text
+	.align 2
+jump_fcontext:
+        addis   %r2, %r12, .TOC.-jump_fcontext@ha
+        addi    %r2, %r2, .TOC.-jump_fcontext@l
+        .localentry jump_fcontext, . - jump_fcontext
+#else
+	.section ".opd","aw"
+	.align 3
+jump_fcontext:
+# ifdef _CALL_LINUX
+        .quad   .L.jump_fcontext,.TOC.@tocbase,0
+        .type   jump_fcontext,@function
+        .text
+        .align 2
+.L.jump_fcontext:
+# else
+        .hidden .jump_fcontext
+        .globl  .jump_fcontext
+        .quad   .jump_fcontext,.TOC.@tocbase,0
+        .size   jump_fcontext,24
+        .type   .jump_fcontext,@function
+        .text
+        .align 2
+.jump_fcontext:
+# endif
+#endif
+    # reserve space on stack
+    subi  %r1, %r1, 328
+
+#if _CALL_ELF != 2
+    std  %r2,  152(%r1)  # save TOC
+#endif
+    std  %r14, 160(%r1)  # save R14
+    std  %r15, 168(%r1)  # save R15
+    std  %r16, 176(%r1)  # save R16
+    std  %r17, 184(%r1)  # save R17
+    std  %r18, 192(%r1)  # save R18
+    std  %r19, 200(%r1)  # save R19
+    std  %r20, 208(%r1)  # save R20
+    std  %r21, 216(%r1)  # save R21
+    std  %r22, 224(%r1)  # save R22
+    std  %r23, 232(%r1)  # save R23
+    std  %r24, 240(%r1)  # save R24
+    std  %r25, 248(%r1)  # save R25
+    std  %r26, 256(%r1)  # save R26
+    std  %r27, 264(%r1)  # save R27
+    std  %r28, 272(%r1)  # save R28
+    std  %r29, 280(%r1)  # save R29
+    std  %r30, 288(%r1)  # save R30
+    std  %r31, 296(%r1)  # save R31
+
+    # save CR
+    mfcr  %r0
+    std  %r0, 304(%r1)
+    # save LR
+    mflr  %r0
+    std  %r0, 312(%r1)
+    # save LR as PC
+    std  %r0, 320(%r1)
+
+    # test if fpu env should be preserved
+    cmpwi  cr7, %r6, 0
+    beq  cr7, 1f
+
+    stfd  %f14, 0(%r1)  # save F14
+    stfd  %f15, 8(%r1)  # save F15
+    stfd  %f16, 16(%r1)  # save F16
+    stfd  %f17, 24(%r1)  # save F17
+    stfd  %f18, 32(%r1)  # save F18
+    stfd  %f19, 40(%r1)  # save F19
+    stfd  %f20, 48(%r1)  # save F20
+    stfd  %f21, 56(%r1)  # save F21
+    stfd  %f22, 64(%r1)  # save F22
+    stfd  %f23, 72(%r1)  # save F23
+    stfd  %f24, 80(%r1)  # save F24
+    stfd  %f25, 88(%r1)  # save F25
+    stfd  %f26, 96(%r1)  # save F26
+    stfd  %f27, 104(%r1)  # save F27
+    stfd  %f28, 112(%r1)  # save F28
+    stfd  %f29, 120(%r1)  # save F29
+    stfd  %f30, 128(%r1)  # save F30
+    stfd  %f31, 136(%r1)  # save F31
+    mffs  %f0  # load FPSCR
+    stfd  %f0, 144(%r1)  # save FPSCR
+
+1:
+    # store RSP (pointing to context-data) in R3
+    std  %r1, 0(%r3)
+
+    # restore RSP (pointing to context-data) from R4
+    mr  %r1, %r4
+
+    # test if fpu env should be preserved
+    cmpwi  cr7, %r6, 0
+    beq  cr7, 2f
+
+    lfd  %f14, 0(%r1)  # restore F14
+    lfd  %f15, 8(%r1)  # restore F15
+    lfd  %f16, 16(%r1)  # restore F16
+    lfd  %f17, 24(%r1)  # restore F17
+    lfd  %f18, 32(%r1)  # restore F18
+    lfd  %f19, 40(%r1)  # restore F19
+    lfd  %f20, 48(%r1)  # restore F20
+    lfd  %f21, 56(%r1)  # restore F21
+    lfd  %f22, 64(%r1)  # restore F22
+    lfd  %f23, 72(%r1)  # restore F23
+    lfd  %f24, 80(%r1)  # restore F24
+    lfd  %f25, 88(%r1)  # restore F25
+    lfd  %f26, 96(%r1)  # restore F26
+    lfd  %f27, 104(%r1)  # restore F27
+    lfd  %f28, 112(%r1)  # restore F28
+    lfd  %f29, 120(%r1)  # restore F29
+    lfd  %f30, 128(%r1)  # restore F30
+    lfd  %f31, 136(%r1)  # restore F31
+    lfd  %f0,  144(%r1)  # load FPSCR
+    mtfsf  0xff, %f0  # restore FPSCR
+
+2:
+#if _CALL_ELF != 2
+    ld  %r2,  152(%r1)  # restore TOC
+#endif
+    ld  %r14, 160(%r1)  # restore R14
+    ld  %r15, 168(%r1)  # restore R15
+    ld  %r16, 176(%r1)  # restore R16
+    ld  %r17, 184(%r1)  # restore R17
+    ld  %r18, 192(%r1)  # restore R18
+    ld  %r19, 200(%r1)  # restore R19
+    ld  %r20, 208(%r1)  # restore R20
+    ld  %r21, 216(%r1)  # restore R21
+    ld  %r22, 224(%r1)  # restore R22
+    ld  %r23, 232(%r1)  # restore R23
+    ld  %r24, 240(%r1)  # restore R24
+    ld  %r25, 248(%r1)  # restore R25
+    ld  %r26, 256(%r1)  # restore R26
+    ld  %r27, 264(%r1)  # restore R27
+    ld  %r28, 272(%r1)  # restore R28
+    ld  %r29, 280(%r1)  # restore R29
+    ld  %r30, 288(%r1)  # restore R30
+    ld  %r31, 296(%r1)  # restore R31
+
+    # restore CR
+    ld  %r0, 304(%r1)
+    mtcr  %r0
+    # restore LR
+    ld  %r0, 312(%r1)
+    mtlr  %r0
+
+    # load PC
+    ld  %r12, 320(%r1)
+    # restore CTR
+    mtctr  %r12
+
+    # adjust stack
+    addi  %r1, %r1, 328
+
+    # use third arg as return value after jump
+    # use third arg as first arg in context function
+    mr  %r3, %r5
+
+    # jump to context
+    bctr
+#if _CALL_ELF == 2
+	.size jump_fcontext, .-jump_fcontext
+#else
+# ifdef _CALL_LINUX
+	.size .jump_fcontext, .-.L.jump_fcontext
+# else
+	.size .jump_fcontext, .-.jump_fcontext
+# endif
+#endif
+
+
+/* Mark that we don't need executable stack.  */
+.section .note.GNU-stack,"",%progbits
diff --git a/libs/context/src/asm/make_ppc64_linux_elf_gas.S b/libs/context/src/asm/make_ppc64_linux_elf_gas.S
--- /dev/null
+++ b/libs/context/src/asm/make_ppc64_linux_elf_gas.S
@@ -0,0 +1,189 @@
+/*
+            Copyright Oliver Kowalke 2009.
+   Distributed under the Boost Software License, Version 1.0.
+      (See accompanying file LICENSE_1_0.txt or copy at
+          http://www.boost.org/LICENSE_1_0.txt)
+*/
+
+/*******************************************************
+ *                                                     *
+ *  -------------------------------------------------  *
+ *  |  0  |  1  |  2  |  3  |  4  |  5  |  6  |  7  |  *
+ *  -------------------------------------------------  *
+ *  |  0  |  4  |  8  |  12 |  16 |  20 |  24 |  28 |  *
+ *  -------------------------------------------------  *
+ *  |    F14    |    F15    |    F16    |    F17    |  *
+ *  -------------------------------------------------  *
+ *  -------------------------------------------------  *
+ *  |  8  |  9  |  10 |  11 |  12 |  13 |  14 |  15 |  *
+ *  -------------------------------------------------  *
+ *  |  32 |  36 |  40 |  44 |  48 |  52 |  56 |  60 |  *
+ *  -------------------------------------------------  *
+ *  |    F18    |    F19    |    F20    |    F21    |  *
+ *  -------------------------------------------------  *
+ *  -------------------------------------------------  *
+ *  |  16 |  17 |  18 |  19 |  20 |  21 |  22 |  23 |  *
+ *  -------------------------------------------------  *
+ *  |  64 |  68 |  72 |  76 |  80 |  84 |  88 |  92 |  *
+ *  -------------------------------------------------  *
+ *  |    F22    |    F23    |    F24    |    F25    |  *
+ *  -------------------------------------------------  *
+ *  -------------------------------------------------  *
+ *  |  24 |  25 |  26 |  27 |  28 |  29 |  30 |  31 |  *
+ *  -------------------------------------------------  *
+ *  |  96 | 100 | 104 | 108 | 112 | 116 | 120 | 124 |  *
+ *  -------------------------------------------------  *
+ *  |    F26    |    F27    |    F28    |    F29    |  *
+ *  -------------------------------------------------  *
+ *  -------------------------------------------------  *
+ *  |  32 |  33 |  34 |  35 |  36 |  37 |  38 |  39 |  *
+ *  -------------------------------------------------  *
+ *  | 128 | 132 | 136 | 140 | 144 | 148 | 152 | 156 |  *
+ *  -------------------------------------------------  *
+ *  |    F30    |    F31    |   fpscr   |    TOC    |  *
+ *  -------------------------------------------------  *
+ *  -------------------------------------------------  *
+ *  |  40 |  41 |  42 |  43 |  44 |  45 |  46 |  47 |  *
+ *  -------------------------------------------------  *
+ *  | 160 | 164 | 168 | 172 | 176 | 180 | 184 | 188 |  *
+ *  -------------------------------------------------  *
+ *  |    R14    |    R15    |     R16   |    R17    |  *
+ *  -------------------------------------------------  *
+ *  -------------------------------------------------  *
+ *  |  48 |  49 |  50 |  51 |  52 |  53 |  54 |  55 |  *
+ *  -------------------------------------------------  *
+ *  | 192 | 196 | 200 | 204 | 208 | 212 | 216 | 220 |  *
+ *  -------------------------------------------------  *
+ *  |    R18    |    R19    |    R20    |    R21    |  *
+ *  -------------------------------------------------  *
+ *  -------------------------------------------------  *
+ *  |  56 |  57 |  58 |  59 |  60 |  61 |  62 |  63 |  *
+ *  -------------------------------------------------  *
+ *  | 224 | 228 | 232 | 236 | 240 | 244 | 248 | 252 |  *
+ *  -------------------------------------------------  *
+ *  |    R22    |    R23    |    R24    |    R25    |  *
+ *  -------------------------------------------------  *
+ *  -------------------------------------------------  *
+ *  |  64 |  65 |  66 |  67 |  68 |  69 |  70 |  71 |  *
+ *  -------------------------------------------------  *
+ *  | 256 | 260 | 264 | 268 | 272 | 276 | 280 | 284 |  *
+ *  -------------------------------------------------  *
+ *  |    R26    |    R27    |    R28    |    R29    |  *
+ *  -------------------------------------------------  *
+ *  -------------------------------------------------  *
+ *  |  72 |  73 |  74 |  75 |  76 |  77 |  78 |  79 |  *
+ *  -------------------------------------------------  *
+ *  | 288 | 292 | 296 | 300 | 304 | 308 | 312 | 316 |  *
+ *  -------------------------------------------------  *
+ *  -------------------------------------------------  *
+ *  |    R30    |    R31    |     CR    |     LR    |  *
+ *  -------------------------------------------------  *
+ *  -------------------------------------------------  *
+ *  |  80 |  81 |                                   |  *
+ *  -------------------------------------------------  *
+ *  | 320 | 324 |                                   |  *
+ *  -------------------------------------------------  *
+ *  |    PC     |                                   |  *
+ *  -------------------------------------------------  *
+ *                                                     *
+ *******************************************************/
+
+.globl make_fcontext
+#if _CALL_ELF == 2
+	.text
+	.align 2
+make_fcontext:
+	addis	%r2, %r12, .TOC.-make_fcontext@ha
+	addi	%r2, %r2, .TOC.-make_fcontext@l
+	.localentry make_fcontext, . - make_fcontext
+#else
+	.section ".opd","aw"
+	.align 3
+make_fcontext:
+# ifdef _CALL_LINUX
+	.quad	.L.make_fcontext,.TOC.@tocbase,0
+	.type	make_fcontext,@function
+	.text
+	.align 2
+.L.make_fcontext:
+# else
+	.hidden	.make_fcontext
+	.globl	.make_fcontext
+	.quad	.make_fcontext,.TOC.@tocbase,0
+	.size	make_fcontext,24
+	.type	.make_fcontext,@function
+	.text
+	.align 2
+.make_fcontext:
+# endif
+#endif
+    # save return address into R6
+    mflr  %r6
+
+    # first arg of make_fcontext() == top address of context-stack
+    # shift address in R3 to lower 16 byte boundary
+    clrrdi  %r3, %r3, 4
+
+    # reserve space for context-data on context-stack
+    # including 64 byte of linkage + parameter area (R1 % 16 == 0)
+    subi  %r3, %r3, 392
+
+    # third arg of make_fcontext() == address of context-function
+    # entry point (ELFv2) or descriptor (ELFv1)
+#if _CALL_ELF == 2
+    # save address of context-function entry point
+    std  %r5, 320(%r3)
+#else
+    # save address of context-function entry point
+    ld   %r4, 0(%r5)
+    std  %r4, 320(%r3)
+    # save TOC of context-function
+    ld   %r4, 8(%r5)
+    std  %r4, 152(%r3)
+#endif
+
+    # load LR
+    mflr  %r0
+    # jump to label 1
+    bl  1f
+1:
+    # load LR into R4
+    mflr  %r4
+    # compute abs address of label finish
+    addi  %r4, %r4, finish - 1b
+    # restore LR
+    mtlr  %r0
+    # save address of finish as return-address for context-function
+    # will be entered after context-function returns
+    std  %r4, 312(%r3)
+
+    # restore return address from R6
+    mtlr  %r6
+
+    blr  # return pointer to context-data
+
+finish:
+    # save return address into R0
+    mflr  %r0
+    # save return address on stack, set up stack frame
+    std  %r0, 8(%r1)
+    # allocate stack space, R1 % 16 == 0
+    stdu  %r1, -32(%r1)
+
+    # exit code is zero
+    li  %r3, 0
+    # exit application
+    bl  _exit
+    nop
+#if _CALL_ELF == 2
+	.size make_fcontext, .-make_fcontext
+#else
+# ifdef _CALL_LINUX
+	.size .make_fcontext, .-.L.make_fcontext
+# else
+	.size .make_fcontext, .-.make_fcontext
+# endif
+#endif
+
+/* Mark that we don't need executable stack.  */
+.section .note.GNU-stack,"",%progbits
diff --git a/libs/context/test/test_context.cpp b/libs/context/test/test_context.cpp
--- a/libs/context/test/test_context.cpp
+++ b/libs/context/test/test_context.cpp
@@ -27,8 +27,10 @@ typedef ctx::simple_stack_allocator<
     8 * 1024 // 8kB
 >       stack_allocator;
 
-ctx::fcontext_t fcm;
-ctx::fcontext_t * fc = 0;
+ctx::fcontext_t *fcm = 0;
+ctx::fcontext_t *fc = 0;
+ctx::fcontext_t *fc1 = 0;
+ctx::fcontext_t *fc2 = 0;
 int value1 = 0;
 std::string value2;
 double value3 = 0.;
@@ -36,25 +38,25 @@ double value3 = 0.;
 void f1( intptr_t)
 {
     ++value1;
-    ctx::jump_fcontext( fc, & fcm, 0);
+    ctx::jump_fcontext( & fc, fcm, 0);
 }
 
 void f3( intptr_t)
 {
     ++value1;
-    ctx::jump_fcontext( fc, & fcm, 0);
+    ctx::jump_fcontext( & fc, fcm, 0);
     ++value1;
-    ctx::jump_fcontext( fc, & fcm, 0);
+    ctx::jump_fcontext( & fc, fcm, 0);
 }
 
 void f4( intptr_t)
 {
-    ctx::jump_fcontext( fc, & fcm, 7);
+    ctx::jump_fcontext( & fc, fcm, 7);
 }
 
 void f5( intptr_t arg)
 {
-    ctx::jump_fcontext( fc, & fcm, arg);
+    ctx::jump_fcontext( & fc, fcm, arg);
 }
 
 void f6( intptr_t arg)
@@ -62,9 +64,9 @@ void f6( intptr_t arg)
     std::pair< int, int > data = * ( std::pair< int, int > * ) arg;
     int res = data.first + data.second;
     data = * ( std::pair< int, int > *)
-        ctx::jump_fcontext( fc, & fcm, ( intptr_t) res);
+        ctx::jump_fcontext( & fc, fcm, ( intptr_t) res);
     res = data.first + data.second;
-    ctx::jump_fcontext( fc, & fcm, ( intptr_t) res);
+    ctx::jump_fcontext( & fc, fcm, ( intptr_t) res);
 }
 
 void f7( intptr_t arg)
@@ -73,7 +75,7 @@ void f7( intptr_t arg)
     { throw std::runtime_error( ( char *) arg); }
     catch ( std::runtime_error const& e)
     { value2 = e.what(); }
-    ctx::jump_fcontext( fc, & fcm, arg);
+    ctx::jump_fcontext( & fc, fcm, arg);
 }
 
 void f8( intptr_t arg)
@@ -81,7 +83,24 @@ void f8( intptr_t arg)
     double d = * ( double *) arg;
     d += 3.45;
     value3 = d;
-    ctx::jump_fcontext( fc, & fcm, 0);
+    ctx::jump_fcontext( & fc, fcm, 0);
+}
+
+void f10( intptr_t)
+{
+    value1 = 3;
+    ctx::jump_fcontext( & fc2, fc1, 0);
+}
+
+void f9( intptr_t)
+{
+    std::cout << "f1: entered" << std::endl;
+
+    stack_allocator alloc;
+    void * sp = alloc.allocate( stack_allocator::default_stacksize());
+    fc2 = ctx::make_fcontext( sp, stack_allocator::default_stacksize(), f10);
+    ctx::jump_fcontext( & fc1, fc2, 0);
+    ctx::jump_fcontext( & fc1, fcm, 0);
 }
 
 void test_setup()
@@ -91,8 +110,6 @@ void test_setup()
     void * sp = alloc.allocate( stack_allocator::minimum_stacksize() );
     fc = ctx::make_fcontext( sp, stack_allocator::minimum_stacksize(), f1);
     BOOST_CHECK( fc);
-    BOOST_CHECK_EQUAL( sp, fc->fc_stack.sp);
-    BOOST_CHECK_EQUAL( stack_allocator::minimum_stacksize(), fc->fc_stack.size);
 }
 
 void test_start()
@@ -104,8 +121,6 @@ void test_start()
     void * sp = alloc.allocate( stack_allocator::minimum_stacksize() );
     fc = ctx::make_fcontext( sp, stack_allocator::minimum_stacksize(), f1);
     BOOST_CHECK( fc);
-    BOOST_CHECK_EQUAL( sp, fc->fc_stack.sp);
-    BOOST_CHECK_EQUAL( stack_allocator::minimum_stacksize(), fc->fc_stack.size);
 
     BOOST_CHECK_EQUAL( 0, value1);
     ctx::jump_fcontext( & fcm, fc, 0);
@@ -121,8 +136,6 @@ void test_jump()
     void * sp = alloc.allocate( stack_allocator::minimum_stacksize() );
     fc = ctx::make_fcontext( sp, stack_allocator::minimum_stacksize(), f3);
     BOOST_CHECK( fc);
-    BOOST_CHECK_EQUAL( sp, fc->fc_stack.sp);
-    BOOST_CHECK_EQUAL( stack_allocator::minimum_stacksize(), fc->fc_stack.size);
 
     BOOST_CHECK_EQUAL( 0, value1);
     ctx::jump_fcontext( & fcm, fc, 0);
@@ -138,8 +151,6 @@ void test_result()
     void * sp = alloc.allocate( stack_allocator::minimum_stacksize() );
     fc = ctx::make_fcontext( sp, stack_allocator::minimum_stacksize(), f4);
     BOOST_CHECK( fc);
-    BOOST_CHECK_EQUAL( sp, fc->fc_stack.sp);
-    BOOST_CHECK_EQUAL( stack_allocator::minimum_stacksize(), fc->fc_stack.size);
 
     int result = ( int) ctx::jump_fcontext( & fcm, fc, 0);
     BOOST_CHECK_EQUAL( 7, result);
@@ -153,8 +164,6 @@ void test_arg()
     void * sp = alloc.allocate( stack_allocator::minimum_stacksize() );
     fc = ctx::make_fcontext( sp, stack_allocator::minimum_stacksize(), f5);
     BOOST_CHECK( fc);
-    BOOST_CHECK_EQUAL( sp, fc->fc_stack.sp);
-    BOOST_CHECK_EQUAL( stack_allocator::minimum_stacksize(), fc->fc_stack.size);
 
     int result = ( int) ctx::jump_fcontext( & fcm, fc, i);
     BOOST_CHECK_EQUAL( i, result);
@@ -168,8 +177,6 @@ void test_transfer()
     void * sp = alloc.allocate( stack_allocator::minimum_stacksize() );
     fc = ctx::make_fcontext( sp, stack_allocator::minimum_stacksize(), f6);
     BOOST_CHECK( fc);
-    BOOST_CHECK_EQUAL( sp, fc->fc_stack.sp);
-    BOOST_CHECK_EQUAL( stack_allocator::minimum_stacksize(), fc->fc_stack.size);
 
     int result = ( int) ctx::jump_fcontext( & fcm, fc, ( intptr_t) & data);
     BOOST_CHECK_EQUAL( 10, result);
@@ -184,10 +191,8 @@ void test_exception()
 
     const char * what = "hello world";
     void * sp = alloc.allocate( stack_allocator::default_stacksize() );
-    fc = ctx::make_fcontext( sp, stack_allocator::default_stacksize(), f7);
+    fc = ctx::make_fcontext( sp, stack_allocator::minimum_stacksize(), f7);
     BOOST_CHECK( fc);
-    BOOST_CHECK_EQUAL( sp, fc->fc_stack.sp);
-    BOOST_CHECK_EQUAL( stack_allocator::default_stacksize(), fc->fc_stack.size);
 
     ctx::jump_fcontext( & fcm, fc, ( intptr_t) what);
     BOOST_CHECK_EQUAL( std::string( what), value2);
@@ -201,13 +206,21 @@ void test_fp()
     void * sp = alloc.allocate( stack_allocator::minimum_stacksize() );
     fc = ctx::make_fcontext( sp, stack_allocator::minimum_stacksize(), f8);
     BOOST_CHECK( fc);
-    BOOST_CHECK_EQUAL( sp, fc->fc_stack.sp);
-    BOOST_CHECK_EQUAL( stack_allocator::minimum_stacksize(), fc->fc_stack.size);
 
     ctx::jump_fcontext( & fcm, fc, (intptr_t) & d);
     BOOST_CHECK_EQUAL( 10.58, value3);
 }
 
+void test_stacked()
+{
+    value1 = 0;
+    stack_allocator alloc;
+    void * sp = alloc.allocate( stack_allocator::default_stacksize());
+    fc1 = ctx::make_fcontext( sp, stack_allocator::default_stacksize(), f9);
+    ctx::jump_fcontext( & fcm, fc1, 0);
+    BOOST_CHECK_EQUAL( 3, value1);
+}
+
 boost::unit_test::test_suite * init_unit_test_suite( int, char* [])
 {
     boost::unit_test::test_suite * test =
@@ -221,6 +234,7 @@ boost::unit_test::test_suite * init_unit_test_suite( int, char* [])
     test->add( BOOST_TEST_CASE( & test_transfer) );
     test->add( BOOST_TEST_CASE( & test_exception) );
     test->add( BOOST_TEST_CASE( & test_fp) );
+    test->add( BOOST_TEST_CASE( & test_stacked) );
 
     return test;
 }

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File boost-ppc64-abiv2-context.patch of Package boost (Revision 6640b242637393024d7603854bcedf1a)

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