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re PR debug/83917 (with -mcall-ms2sysv-xlogues, stepping into x86 tail-call restore...
authorJakub Jelinek <jakub@redhat.com>
Mon, 26 Feb 2018 19:46:34 +0000 (20:46 +0100)
committerJakub Jelinek <jakub@gcc.gnu.org>
Mon, 26 Feb 2018 19:46:34 +0000 (20:46 +0100)
PR debug/83917
* config/i386/i386-asm.h (PACKAGE_VERSION, PACKAGE_NAME,
PACKAGE_STRING, PACKAGE_TARNAME, PACKAGE_URL): Undefine between
inclusion of auto-target.h and auto-host.h.
(USE_GAS_CFI_DIRECTIVES): Define if not defined already based on
__GCC_HAVE_DWARF2_CFI_ASM.
(cfi_startproc, cfi_endproc, cfi_adjust_cfa_offset,
cfi_def_cfa_register, cfi_def_cfa, cfi_register, cfi_offset, cfi_push,
cfi_pop): Define.
* config/i386/cygwin.S: Don't include auto-host.h here, just
define USE_GAS_CFI_DIRECTIVES to 1 or 0 and include i386-asm.h.
(cfi_startproc, cfi_endproc, cfi_adjust_cfa_offset,
cfi_def_cfa_register, cfi_register, cfi_push, cfi_pop): Remove.
* config/i386/resms64fx.h: Add cfi_* directives.
* config/i386/resms64x.h: Likewise.

From-SVN: r258010

libgcc/ChangeLog patch | blob | history
libgcc/config/i386/cygwin.S patch | blob | history
libgcc/config/i386/i386-asm.h patch | blob | history
libgcc/config/i386/resms64fx.h patch | blob | history
libgcc/config/i386/resms64x.h patch | blob | history

diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog
index 0e9e775..d29f2f4 100644 (file)
--- a/libgcc/ChangeLog
+++ b/libgcc/ChangeLog
@@ -1,3 +1,21 @@
+2018-02-26  Jakub Jelinek  <jakub@redhat.com>
+
+       PR debug/83917
+       * config/i386/i386-asm.h (PACKAGE_VERSION, PACKAGE_NAME,
+       PACKAGE_STRING, PACKAGE_TARNAME, PACKAGE_URL): Undefine between
+       inclusion of auto-target.h and auto-host.h.
+       (USE_GAS_CFI_DIRECTIVES): Define if not defined already based on
+       __GCC_HAVE_DWARF2_CFI_ASM.
+       (cfi_startproc, cfi_endproc, cfi_adjust_cfa_offset,
+       cfi_def_cfa_register, cfi_def_cfa, cfi_register, cfi_offset, cfi_push,
+       cfi_pop): Define.
+       * config/i386/cygwin.S: Don't include auto-host.h here, just
+       define USE_GAS_CFI_DIRECTIVES to 1 or 0 and include i386-asm.h.
+       (cfi_startproc, cfi_endproc, cfi_adjust_cfa_offset,
+       cfi_def_cfa_register, cfi_register, cfi_push, cfi_pop): Remove.
+       * config/i386/resms64fx.h: Add cfi_* directives.
+       * config/i386/resms64x.h: Likewise.
+
 2018-02-20  Max Filippov  <jcmvbkbc@gmail.com>
 
        * config/xtensa/ieee754-df.S (__adddf3_aux): Add
diff --git a/libgcc/config/i386/cygwin.S b/libgcc/config/i386/cygwin.S
index 449b7d7..f856be3 100644 (file)
--- a/libgcc/config/i386/cygwin.S
+++ b/libgcc/config/i386/cygwin.S
@@ -23,31 +23,13 @@
  * <http://www.gnu.org/licenses/>.
  */
 
-#include "auto-host.h"
-
 #ifdef HAVE_GAS_CFI_SECTIONS_DIRECTIVE
+# define USE_GAS_CFI_DIRECTIVES 1
        .cfi_sections   .debug_frame
-# define cfi_startproc()               .cfi_startproc
-# define cfi_endproc()                 .cfi_endproc
-# define cfi_adjust_cfa_offset(X)      .cfi_adjust_cfa_offset X
-# define cfi_def_cfa_register(X)       .cfi_def_cfa_register X
-# define cfi_register(D,S)             .cfi_register D, S
-# ifdef __x86_64__
-#  define cfi_push(X)          .cfi_adjust_cfa_offset 8; .cfi_rel_offset X, 0
-#  define cfi_pop(X)           .cfi_adjust_cfa_offset -8; .cfi_restore X
-# else
-#  define cfi_push(X)          .cfi_adjust_cfa_offset 4; .cfi_rel_offset X, 0
-#  define cfi_pop(X)           .cfi_adjust_cfa_offset -4; .cfi_restore X
-# endif
 #else
-# define cfi_startproc()
-# define cfi_endproc()
-# define cfi_adjust_cfa_offset(X)
-# define cfi_def_cfa_register(X)
-# define cfi_register(D,S)
-# define cfi_push(X)
-# define cfi_pop(X)
-#endif /* HAVE_GAS_CFI_SECTIONS_DIRECTIVE */
+# define USE_GAS_CFI_DIRECTIVES 0
+#endif
+#include "i386-asm.h"
 
 #ifdef L_chkstk
 /* Function prologue calls __chkstk to probe the stack when allocating more
diff --git a/libgcc/config/i386/i386-asm.h b/libgcc/config/i386/i386-asm.h
index 267133a..dbf9956 100644 (file)
--- a/libgcc/config/i386/i386-asm.h
+++ b/libgcc/config/i386/i386-asm.h
@@ -27,8 +27,47 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 #define I386_ASM_H
 
 #include "auto-target.h"
+#undef PACKAGE_VERSION
+#undef PACKAGE_NAME
+#undef PACKAGE_STRING
+#undef PACKAGE_TARNAME
+#undef PACKAGE_URL
 #include "auto-host.h"
 
+#ifndef USE_GAS_CFI_DIRECTIVES
+# ifdef __GCC_HAVE_DWARF2_CFI_ASM
+#  define USE_GAS_CFI_DIRECTIVES 1
+# else
+#  define USE_GAS_CFI_DIRECTIVES 0
+# endif
+#endif
+#if USE_GAS_CFI_DIRECTIVES
+# define cfi_startproc()               .cfi_startproc
+# define cfi_endproc()                 .cfi_endproc
+# define cfi_adjust_cfa_offset(X)      .cfi_adjust_cfa_offset X
+# define cfi_def_cfa_register(X)       .cfi_def_cfa_register X
+# define cfi_def_cfa(R,O)              .cfi_def_cfa R, O
+# define cfi_register(D,S)             .cfi_register D, S
+# define cfi_offset(R,O)               .cfi_offset R, O
+# ifdef __x86_64__
+#  define cfi_push(X)          .cfi_adjust_cfa_offset 8; .cfi_rel_offset X, 0
+#  define cfi_pop(X)           .cfi_adjust_cfa_offset -8; .cfi_restore X
+# else
+#  define cfi_push(X)          .cfi_adjust_cfa_offset 4; .cfi_rel_offset X, 0
+#  define cfi_pop(X)           .cfi_adjust_cfa_offset -4; .cfi_restore X
+# endif
+#else
+# define cfi_startproc()
+# define cfi_endproc()
+# define cfi_adjust_cfa_offset(X)
+# define cfi_def_cfa_register(X)
+# define cfi_def_cfa(R,O)
+# define cfi_register(D,S)
+# define cfi_offset(R,O)
+# define cfi_push(X)
+# define cfi_pop(X)
+#endif
+
 #define PASTE2(a, b) PASTE2a(a, b)
 #define PASTE2a(a, b) a ## b
 
diff --git a/libgcc/config/i386/resms64fx.h b/libgcc/config/i386/resms64fx.h
index c5f63d8..88d36f3 100644 (file)
--- a/libgcc/config/i386/resms64fx.h
+++ b/libgcc/config/i386/resms64fx.h
@@ -33,6 +33,9 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  * from the function.  */
 
        .text
+       cfi_startproc()
+       cfi_offset(%rbp, -16)
+       cfi_def_cfa(%rbp, 16)
 MS2SYSV_STUB_BEGIN(resms64fx_17)
        mov     -0x68(%rsi),%r15
 MS2SYSV_STUB_BEGIN(resms64fx_16)
@@ -48,7 +51,9 @@ MS2SYSV_STUB_BEGIN(resms64fx_12)
        SSE_RESTORE
        mov     -0x38(%rsi),%rsi
        leaveq
+       cfi_def_cfa(%rsp, 8)
        ret
+       cfi_endproc()
 MS2SYSV_STUB_END(resms64fx_12)
 MS2SYSV_STUB_END(resms64fx_13)
 MS2SYSV_STUB_END(resms64fx_14)
diff --git a/libgcc/config/i386/resms64x.h b/libgcc/config/i386/resms64x.h
index 1b44938..cf6830f 100644 (file)
--- a/libgcc/config/i386/resms64x.h
+++ b/libgcc/config/i386/resms64x.h
@@ -32,6 +32,8 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  * function.  */
 
        .text
+       cfi_startproc()
+       cfi_def_cfa(%r10, 8)
 MS2SYSV_STUB_BEGIN(resms64x_18)
        mov     -0x70(%rsi),%r15
 MS2SYSV_STUB_BEGIN(resms64x_17)
@@ -49,7 +51,9 @@ MS2SYSV_STUB_BEGIN(resms64x_12)
        SSE_RESTORE
        mov     -0x38(%rsi),%rsi
        mov     %r10,%rsp
+       cfi_def_cfa_register(%rsp)
        ret
+       cfi_endproc()
 MS2SYSV_STUB_END(resms64x_12)
 MS2SYSV_STUB_END(resms64x_13)
 MS2SYSV_STUB_END(resms64x_14)
Domain: System / Toolchain;