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Rework: %r9 is destroyed by functions so don't use it as

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temporary, align stack correctly, fix parameter for CDISABLE.
2003-02-09  Andreas Jaeger  <aj@suse.de>

	* sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h:
	Rework: %r9 is destroyed by functions so don't use it as
	temporary, align stack correctly, fix parameter for CDISABLE.
This commit is contained in:
Andreas Jaeger 2003-02-10 08:25:44 +00:00
parent 696e556ea9
commit df037172a7
2 changed files with 42 additions and 38 deletions
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6
linuxthreads/ChangeLog
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@ -1,3 +1,9 @@
2003-02-09 Andreas Jaeger <aj@suse.de>
* sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h:
Rework: %r9 is destroyed by functions so don't use it as
temporary, align stack correctly, fix parameter for CDISABLE.
2003-02-07 Kaz Kojima <kkojima@rr.iij4u.or.jp>
* sysdeps/sh/Makefile: New file.

74
linuxthreads/sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h
View File

@ -1,4 +1,4 @@
/* Copyright (C) 2002 Free Software Foundation, Inc.
/* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Jakub Jelinek <jakub@redhat.com>, 2002.
@ -37,60 +37,58 @@
jae SYSCALL_ERROR_LABEL; \
ret; \
L(pseudo_cancel): \
/* Save registers that might get destroyed. */ \
SAVESTK_##args \
PUSHARGS_##args \
CENABLE \
/* Restore registers. */ \
POPARGS_##args \
movq %rax, OLDTYPE_##args; \
/* The return value from CENABLE is argument for CDISABLE. */ \
movq %rax, (%rsp); \
movq $SYS_ify (syscall_name), %rax; \
syscall; \
xchgq %rax, OLDTYPE_##args; \
movq (%rsp), %rdi; \
/* Save %rax since it's the error code from the syscall. */ \
movq %rax, 8(%rsp); \
CDISABLE \
movq OLDTYPE_##args, %rax; \
movq 8(%rsp), %rax; \
RESTSTK_##args \
cmpq $-4095, %rax; \
jae SYSCALL_ERROR_LABEL; \
L(pseudo_end):
# define PUSHARGS_0 /* Nothing. */
# define PUSHARGS_1 PUSHARGS_0 movq %rdi, (%rsp);
# define PUSHARGS_2 PUSHARGS_1 movq %rsi, 8(%rsp);
# define PUSHARGS_3 PUSHARGS_2 movq %rdx, 16(%rsp);
# define PUSHARGS_4 PUSHARGS_3 movq %rcx, 24(%rsp);
# define PUSHARGS_5 PUSHARGS_4 movq %r8, 32(%rsp);
# define PUSHARGS_6 PUSHARGS_5 movq %r9, 40(%rsp);
# define PUSHARGS_1 PUSHARGS_0 movq %rdi, 8(%rsp);
# define PUSHARGS_2 PUSHARGS_1 movq %rsi, 16(%rsp);
# define PUSHARGS_3 PUSHARGS_2 movq %rdx, 24(%rsp);
# define PUSHARGS_4 PUSHARGS_3 movq %rcx, 32(%rsp);
# define PUSHARGS_5 PUSHARGS_4 movq %r8, 40(%rsp);
# define PUSHARGS_6 PUSHARGS_5 movq %r9, 48(%rsp);
# define POPARGS_0 /* Nothing. */
# define POPARGS_1 POPARGS_0 movq (%rsp), %rdi;
# define POPARGS_2 POPARGS_1 movq 8(%rsp), %rsi;
# define POPARGS_3 POPARGS_2 movq 16(%rsp), %rdx;
# define POPARGS_4 POPARGS_3 movq 24(%rsp), %r10;
# define POPARGS_5 POPARGS_4 movq 32(%rsp), %r8;
# define POPARGS_6 POPARGS_5 movq 40(%rsp), %r9;
# define POPARGS_1 POPARGS_0 movq 8(%rsp), %rdi;
# define POPARGS_2 POPARGS_1 movq 16(%rsp), %rsi;
# define POPARGS_3 POPARGS_2 movq 24(%rsp), %rdx;
# define POPARGS_4 POPARGS_3 movq 32(%rsp), %r10;
# define POPARGS_5 POPARGS_4 movq 40(%rsp), %r8;
# define POPARGS_6 POPARGS_5 movq 48(%rsp), %r9;
# define SAVESTK_0 /* Nothing. */
# define SAVESTK_1 subq $16, %rsp;
# define SAVESTK_2 SAVESTK_1;
# define SAVESTK_3 subq $32, %rsp;
# define SAVESTK_4 SAVESTK_3;
# define SAVESTK_5 subq $48, %rsp;
# define SAVESTK_6 subq $64, %rsp;
/* We always have to align the stack before calling a function. */
# define SAVESTK_0 subq $24, %rsp;
# define SAVESTK_1 SAVESTK_0
# define SAVESTK_2 SAVESTK_1
# define SAVESTK_3 subq $40, %rsp;
# define SAVESTK_4 SAVESTK_3
# define SAVESTK_5 subq $56, %rsp;
# define SAVESTK_6 SAVESTK_5
# define RESTSTK_0 /* Nothing. */
# define RESTSTK_1 addq $16, %rsp;
# define RESTSTK_2 RESTSTK_1;
# define RESTSTK_3 addq $32, %rsp;
# define RESTSTK_4 RESTSTK_3;
# define RESTSTK_5 addq $48, %rsp;
# define RESTSTK_6 addq $64, %rsp;
# define OLDTYPE_0 %r9
# define OLDTYPE_1 OLDTYPE_0
# define OLDTYPE_2 OLDTYPE_0
# define OLDTYPE_3 OLDTYPE_0
# define OLDTYPE_4 OLDTYPE_0
# define OLDTYPE_5 OLDTYPE_0
# define OLDTYPE_6 48(%rsp)
# define RESTSTK_0 addq $24,%rsp;
# define RESTSTK_1 RESTSTK_0
# define RESTSTK_2 RESTSTK_1
# define RESTSTK_3 addq $40, %rsp;
# define RESTSTK_4 RESTSTK_3
# define RESTSTK_5 addq $56, %rsp;
# define RESTSTK_6 RESTSTK_5
# ifdef IS_IN_libpthread
# define CENABLE call __pthread_enable_asynccancel;