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authorUlrich Drepper <drepper@redhat.com>2005-05-03 22:59:51 +0000
committerUlrich Drepper <drepper@redhat.com>2005-05-03 22:59:51 +0000
commit5085cd1fa10472c6e484e0cb6cb06417ca69de1d (patch)
tree389ca2e9c2f2979afe2915d47205b61e659b8fd2 /nptl/sysdeps
parentefe330aed1a1e757d4ca341187f46dd891d337ed (diff)
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* sysdeps/unix/sysv/linux/kernel-features.h: waitid is available
on ppc in 2.6.12.
Diffstat (limited to 'nptl/sysdeps')
-rw-r--r--nptl/sysdeps/unix/sysv/linux/i386/sysdep-cancel.h282
1 files changed, 21 insertions, 261 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/sysdep-cancel.h b/nptl/sysdeps/unix/sysv/linux/i386/sysdep-cancel.h
index 8142455781..147f5c8470 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/sysdep-cancel.h
+++ b/nptl/sysdeps/unix/sysv/linux/i386/sysdep-cancel.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Jakub Jelinek <jakub@redhat.com>, 2002.
@@ -29,7 +29,6 @@
# define PSEUDO(name, syscall_name, args) \
.text; \
ENTRY (name) \
- L(name##START): \
cmpl $0, %gs:MULTIPLE_THREADS_OFFSET; \
jne L(pseudo_cancel); \
.type __##syscall_name##_nocancel,@function; \
@@ -51,258 +50,11 @@
POPSTATE_##args \
cmpl $-4095, %eax; \
jae SYSCALL_ERROR_LABEL; \
- L(pseudo_end): \
- \
- /* Create unwinding information for the syscall wrapper. */ \
- .section .eh_frame,"a",@progbits; \
- L(STARTFRAME): \
- /* Length of the CIE. */ \
- .long L(ENDCIE)-L(STARTCIE); \
- L(STARTCIE): \
- /* CIE ID. */ \
- .long 0; \
- /* Version number. */ \
- .byte 1; \
- /* NUL-terminated augmentation string. */ \
- AUGMENTATION_STRING; \
- /* Code alignment factor. */ \
- .uleb128 1; \
- /* Data alignment factor. */ \
- .sleb128 -4; \
- /* Return address register column. */ \
- .byte 8; \
- /* Optional augmentation parameter. */ \
- AUGMENTATION_PARAM \
- /* Start of the table initialization. */ \
- .byte 0xc; /* DW_CFA_def_cfa */ \
- .uleb128 4; \
- .uleb128 4; \
- .byte 0x88; /* DW_CFA_offset, column 0x8 */ \
- .uleb128 1; \
- .align 4; \
- L(ENDCIE): \
- /* Length of the FDE. */ \
- .long L(ENDFDE)-L(STARTFDE); \
- L(STARTFDE): \
- /* CIE pointer. */ \
- .long L(STARTFDE)-L(STARTFRAME); \
- /* Start address of the code. */ \
- START_SYMBOL_REF (name); \
- /* Length of the code. */ \
- .long L(name##END)-L(name##START); \
- /* Augmentation data. */ \
- AUGMENTATION_PARAM_FDE \
- /* The rest of the code depends on the number of parameters the syscall \
- takes. */ \
- EH_FRAME_##args(name); \
- .align 4; \
- L(ENDFDE): \
- .previous
-
-# ifdef SHARED
-/* NUL-terminated augmentation string. Note "z" means there is an
- augmentation value later on. */
-# define AUGMENTATION_STRING .string "zR"
-# define AUGMENTATION_PARAM \
- /* Augmentation value length. */ \
- .uleb128 1; \
- /* Encoding: DW_EH_PE_pcrel + DW_EH_PE_sdata4. */ \
- .byte 0x1b;
-# define AUGMENTATION_PARAM_FDE \
- /* No augmentation data. */ \
- .uleb128 0;
-# define START_SYMBOL_REF(name) \
- /* PC-relative start address of the code. */ \
- .long L(name##START)-.
-# else
-/* No augmentation. */
-# define AUGMENTATION_STRING .ascii "\0"
-# define AUGMENTATION_PARAM /* nothing */
-# define AUGMENTATION_PARAM_FDE /* nothing */
-# define START_SYMBOL_REF(name) \
- /* Absolute start address of the code. */ \
- .long L(name##START)
-# endif
-
-/* Callframe description for syscalls without parameters. This is very
- simple. The only place the stack pointer is changed is when the old
- cancellation state value is saved. */
-# define EH_FRAME_0(name) \
- .byte 0x40+L(PUSHSTATE)-L(name##START); /* DW_CFA_advance_loc+N */ \
- .byte 14; /* DW_CFA_def_cfa_offset */ \
- .uleb128 8; \
- .byte 0x40+L(POPSTATE)-L(PUSHSTATE); /* DW_CFA_advance_loc+N */ \
- .byte 14; /* DW_CFA_def_cfa_offset */ \
- .uleb128 4
-
-/* For syscalls with one and two parameters the code is the same as for
- those which take no parameter. */
-# define EH_FRAME_1(name) \
- .byte 0x40+L(SAVEBX1)-L(name##START); /* DW_CFA_advance_loc+N */ \
- .byte 9; /* DW_CFA_register */ \
- .uleb128 3; /* %ebx */ \
- .uleb128 2; /* %edx */ \
- .byte 0x40+L(RESTBX1)-L(SAVEBX1); /* DW_CFA_advance_loc+N */ \
- .byte 0xc3; /* DW_CFA_restore %ebx */ \
- .byte 0x40+L(PUSHSTATE)-L(RESTBX1); /* DW_CFA_advance_loc+N */ \
- .byte 14; /* DW_CFA_def_cfa_offset */ \
- .uleb128 8; \
- .byte 0x40+L(SAVEBX2)-L(PUSHSTATE); /* DW_CFA_advance_loc+N */ \
- .byte 9; /* DW_CFA_register */ \
- .uleb128 3; /* %ebx */ \
- .uleb128 2; /* %edx */ \
- .byte 0x40+L(RESTBX2)-L(SAVEBX2); /* DW_CFA_advance_loc+N */ \
- .byte 0xc3; /* DW_CFA_restore %ebx */ \
- .byte 0x40+L(POPSTATE)-L(RESTBX2); /* DW_CFA_advance_loc+N */ \
- .byte 14; /* DW_CFA_def_cfa_offset */ \
- .uleb128 4
-
-# define EH_FRAME_2(name) EH_FRAME_1 (name)
-
-/* For syscalls with three parameters the stack pointer is changed
- also to save the content of the %ebx register. */
-# define EH_FRAME_3(name) \
- .byte 0x40+L(PUSHBX1)-L(name##START); /* DW_CFA_advance_loc+N */ \
- .byte 14; /* DW_CFA_def_cfa_offset */ \
- .uleb128 8; \
- .byte 0x83; /* DW_CFA_offset %ebx */ \
- .uleb128 2; \
- .byte 0x40+L(POPBX1)-L(PUSHBX1); /* DW_CFA_advance_loc+N */ \
- .byte 14; /* DW_CFA_def_cfa_offset */ \
- .uleb128 4; \
- .byte 0xc3; /* DW_CFA_restore %ebx */ \
- .byte 0x40+L(PUSHSTATE)-L(POPBX1); /* DW_CFA_advance_loc+N */ \
- .byte 14; /* DW_CFA_def_cfa_offset */ \
- .uleb128 8; \
- .byte 0x40+L(PUSHBX2)-L(PUSHSTATE); /* DW_CFA_advance_loc+N */ \
- .byte 14; /* DW_CFA_def_cfa_offset */ \
- .uleb128 12; \
- .byte 0x83; /* DW_CFA_offset %ebx */ \
- .uleb128 3; \
- .byte 0x40+L(POPBX2)-L(PUSHBX2); /* DW_CFA_advance_loc+N */ \
- .byte 14; /* DW_CFA_def_cfa_offset */ \
- .uleb128 8; \
- .byte 0xc3; /* DW_CFA_restore %ebx */ \
- .byte 0x40+L(POPSTATE)-L(POPBX2); /* DW_CFA_advance_loc+N */ \
- .byte 14; /* DW_CFA_def_cfa_offset */ \
- .uleb128 4
-
-/* With four parameters the syscall wrappers have to save %ebx and %esi. */
-# define EH_FRAME_4(name) \
- .byte 0x40+L(PUSHSI1)-L(name##START); /* DW_CFA_advance_loc+N */ \
- .byte 14; /* DW_CFA_def_cfa_offset */ \
- .uleb128 8; \
- .byte 0x86; /* DW_CFA_offset %esi */ \
- .uleb128 2; \
- .byte 0x40+L(PUSHBX1)-L(PUSHSI1); /* DW_CFA_advance_loc+N */ \
- .byte 14; /* DW_CFA_def_cfa_offset */ \
- .uleb128 12; \
- .byte 0x83; /* DW_CFA_offset %ebx */ \
- .uleb128 3; \
- .byte 0x40+L(POPBX1)-L(PUSHBX1); /* DW_CFA_advance_loc+N */ \
- .byte 14; /* DW_CFA_def_cfa_offset */ \
- .uleb128 8; \
- .byte 0xc3; /* DW_CFA_restore %ebx */ \
- .byte 0x40+L(POPSI1)-L(POPBX1); /* DW_CFA_advance_loc+N */ \
- .byte 14; /* DW_CFA_def_cfa_offset */ \
- .uleb128 4; \
- .byte 0xc6; /* DW_CFA_restore %esi */ \
- .byte 0x40+L(PUSHSTATE)-L(POPSI1); /* DW_CFA_advance_loc+N */ \
- .byte 14; /* DW_CFA_def_cfa_offset */ \
- .uleb128 8; \
- .byte 0x40+L(PUSHSI2)-L(PUSHSTATE); /* DW_CFA_advance_loc+N */ \
- .byte 14; /* DW_CFA_def_cfa_offset */ \
- .uleb128 12; \
- .byte 0x86; /* DW_CFA_offset %esi */ \
- .uleb128 3; \
- .byte 0x40+L(PUSHBX2)-L(PUSHSI2); /* DW_CFA_advance_loc+N */ \
- .byte 14; /* DW_CFA_def_cfa_offset */ \
- .uleb128 16; \
- .byte 0x83; /* DW_CFA_offset %ebx */ \
- .uleb128 4; \
- .byte 0x40+L(POPBX2)-L(PUSHBX2); /* DW_CFA_advance_loc+N */ \
- .byte 14; /* DW_CFA_def_cfa_offset */ \
- .uleb128 12; \
- .byte 0xc3; /* DW_CFA_restore %ebx */ \
- .byte 0x40+L(POPSI2)-L(POPBX2); /* DW_CFA_advance_loc+N */ \
- .byte 14; /* DW_CFA_def_cfa_offset */ \
- .uleb128 8; \
- .byte 0xc6; /* DW_CFA_restore %esi */ \
- .byte 0x40+L(POPSTATE)-L(POPSI2); /* DW_CFA_advance_loc+N */ \
- .byte 14; /* DW_CFA_def_cfa_offset */ \
- .uleb128 4
-
-/* With five parameters the syscall wrappers have to save %ebx, %esi,
- and %edi. */
-# define EH_FRAME_5(name) \
- .byte 0x40+L(PUSHDI1)-L(name##START); /* DW_CFA_advance_loc+N */ \
- .byte 14; /* DW_CFA_def_cfa_offset */ \
- .uleb128 8; \
- .byte 0x87; /* DW_CFA_offset %edi */ \
- .uleb128 2; \
- .byte 0x40+L(PUSHSI1)-L(PUSHDI1); /* DW_CFA_advance_loc+N */ \
- .byte 14; /* DW_CFA_def_cfa_offset */ \
- .uleb128 12; \
- .byte 0x86; /* DW_CFA_offset %esi */ \
- .uleb128 3; \
- .byte 0x40+L(PUSHBX1)-L(PUSHSI1); /* DW_CFA_advance_loc+N */ \
- .byte 14; /* DW_CFA_def_cfa_offset */ \
- .uleb128 16; \
- .byte 0x83; /* DW_CFA_offset %ebx */ \
- .uleb128 4; \
- .byte 0x40+L(POPBX1)-L(PUSHBX1); /* DW_CFA_advance_loc+N */ \
- .byte 14; /* DW_CFA_def_cfa_offset */ \
- .uleb128 12; \
- .byte 0xc3; /* DW_CFA_restore %ebx */ \
- .byte 0x40+L(POPSI1)-L(POPBX1); /* DW_CFA_advance_loc+N */ \
- .byte 14; /* DW_CFA_def_cfa_offset */ \
- .uleb128 8; \
- .byte 0xc6; /* DW_CFA_restore %esi */ \
- .byte 0x40+L(POPDI1)-L(POPSI1); /* DW_CFA_advance_loc+N */ \
- .byte 14; /* DW_CFA_def_cfa_offset */ \
- .uleb128 4; \
- .byte 0xc7; /* DW_CFA_restore %edi */ \
- .byte 0x40+L(PUSHSTATE)-L(POPDI1); /* DW_CFA_advance_loc+N */ \
- .byte 14; /* DW_CFA_def_cfa_offset */ \
- .uleb128 8; \
- .byte 0x40+L(PUSHDI2)-L(PUSHSTATE); /* DW_CFA_advance_loc+N */ \
- .byte 14; /* DW_CFA_def_cfa_offset */ \
- .uleb128 12; \
- .byte 0x87; /* DW_CFA_offset %edi */ \
- .uleb128 3; \
- .byte 0x40+L(PUSHSI2)-L(PUSHDI2); /* DW_CFA_advance_loc+N */ \
- .byte 14; /* DW_CFA_def_cfa_offset */ \
- .uleb128 16; \
- .byte 0x86; /* DW_CFA_offset %esi */ \
- .uleb128 4; \
- .byte 0x40+L(PUSHBX2)-L(PUSHSI2); /* DW_CFA_advance_loc+N */ \
- .byte 14; /* DW_CFA_def_cfa_offset */ \
- .uleb128 20; \
- .byte 0x83; /* DW_CFA_offset %ebx */ \
- .uleb128 5; \
- .byte 0x40+L(POPBX2)-L(PUSHBX2); /* DW_CFA_advance_loc+N */ \
- .byte 14; /* DW_CFA_def_cfa_offset */ \
- .uleb128 16; \
- .byte 0xc3; /* DW_CFA_restore %ebx */ \
- .byte 0x40+L(POPSI2)-L(POPBX2); /* DW_CFA_advance_loc+N */ \
- .byte 14; /* DW_CFA_def_cfa_offset */ \
- .uleb128 12; \
- .byte 0xc6; /* DW_CFA_restore %esi */ \
- .byte 0x40+L(POPDI2)-L(POPSI2); /* DW_CFA_advance_loc+N */ \
- .byte 14; /* DW_CFA_def_cfa_offset */ \
- .uleb128 8; \
- .byte 0xc7; /* DW_CFA_restore %edi */ \
- .byte 0x40+L(POPSTATE)-L(POPDI2); /* DW_CFA_advance_loc+N */ \
- .byte 14; /* DW_CFA_def_cfa_offset */ \
- .uleb128 4
-
-
-# undef ASM_SIZE_DIRECTIVE
-# define ASM_SIZE_DIRECTIVE(name) L(name##END): .size name,.-name;
+ L(pseudo_end):
# define SAVE_OLDTYPE_0 movl %eax, %ecx;
# define SAVE_OLDTYPE_1 SAVE_OLDTYPE_0
-# define SAVE_OLDTYPE_2 pushl %eax; L(PUSHSTATE):
+# define SAVE_OLDTYPE_2 pushl %eax; cfi_adjust_cfa_offset (4);
# define SAVE_OLDTYPE_3 SAVE_OLDTYPE_2
# define SAVE_OLDTYPE_4 SAVE_OLDTYPE_2
# define SAVE_OLDTYPE_5 SAVE_OLDTYPE_2
@@ -313,11 +65,13 @@
# define _PUSHCARGS_0 /* No arguments to push. */
# define _POPCARGS_0 /* No arguments to pop. */
-# define PUSHCARGS_1 movl %ebx, %edx; L(SAVEBX2): PUSHCARGS_0
+# define PUSHCARGS_1 movl %ebx, %edx; cfi_register (ebx, edx); PUSHCARGS_0
# define DOCARGS_1 _DOARGS_1 (4)
-# define POPCARGS_1 POPCARGS_0; movl %edx, %ebx; L(RESTBX2):
-# define _PUSHCARGS_1 pushl %ebx; L(PUSHBX2): _PUSHCARGS_0
-# define _POPCARGS_1 _POPCARGS_0; popl %ebx; L(POPBX2):
+# define POPCARGS_1 POPCARGS_0; movl %edx, %ebx; cfi_restore (ebx);
+# define _PUSHCARGS_1 pushl %ebx; cfi_adjust_cfa_offset (4); \
+ cfi_rel_offset (ebx, 0); _PUSHCARGS_0
+# define _POPCARGS_1 _POPCARGS_0; popl %ebx; \
+ cfi_adjust_cfa_offset (-4); cfi_restore (ebx);
# define PUSHCARGS_2 PUSHCARGS_1
# define DOCARGS_2 _DOARGS_2 (12)
@@ -334,14 +88,18 @@
# define PUSHCARGS_4 _PUSHCARGS_4
# define DOCARGS_4 _DOARGS_4 (28)
# define POPCARGS_4 _POPCARGS_4
-# define _PUSHCARGS_4 pushl %esi; L(PUSHSI2): _PUSHCARGS_3
-# define _POPCARGS_4 _POPCARGS_3; popl %esi; L(POPSI2):
+# define _PUSHCARGS_4 pushl %esi; cfi_adjust_cfa_offset (4); \
+ cfi_rel_offset (esi, 0); _PUSHCARGS_3
+# define _POPCARGS_4 _POPCARGS_3; popl %esi; \
+ cfi_adjust_cfa_offset (-4); cfi_restore (esi);
# define PUSHCARGS_5 _PUSHCARGS_5
# define DOCARGS_5 _DOARGS_5 (36)
# define POPCARGS_5 _POPCARGS_5
-# define _PUSHCARGS_5 pushl %edi; L(PUSHDI2): _PUSHCARGS_4
-# define _POPCARGS_5 _POPCARGS_4; popl %edi; L(POPDI2):
+# define _PUSHCARGS_5 pushl %edi; cfi_adjust_cfa_offset (4); \
+ cfi_rel_offset (edi, 0); _PUSHCARGS_4
+# define _POPCARGS_5 _POPCARGS_4; popl %edi; \
+ cfi_adjust_cfa_offset (-4); cfi_restore (edi);
# ifdef IS_IN_libpthread
# define CENABLE call __pthread_enable_asynccancel;
@@ -356,9 +114,11 @@
# error Unsupported library
# endif
# define POPSTATE_0 \
- pushl %eax; L(PUSHSTATE): movl %ecx, %eax; CDISABLE; popl %eax; L(POPSTATE):
+ pushl %eax; cfi_adjust_cfa_offset (4); movl %ecx, %eax; \
+ CDISABLE; popl %eax; cfi_adjust_cfa_offset (-4);
# define POPSTATE_1 POPSTATE_0
-# define POPSTATE_2 xchgl (%esp), %eax; CDISABLE; popl %eax; L(POPSTATE):
+# define POPSTATE_2 xchgl (%esp), %eax; CDISABLE; popl %eax; \
+ cfi_adjust_cfa_offset (-4);
# define POPSTATE_3 POPSTATE_2
# define POPSTATE_4 POPSTATE_3
# define POPSTATE_5 POPSTATE_4