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author | Ulrich Drepper <drepper@redhat.com> | 2004-02-14 05:16:57 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 2004-02-14 05:16:57 +0000 |
commit | 5c76ff279fa8fd1425b86a39fe75507660cc0b5c (patch) | |
tree | 420bed38e7d88b534f57f82497cc0dd77a26b936 /sysdeps/powerpc/bits/setjmp.h | |
parent | 9f8765bc46dbb4991dc20905c5d10d867956d489 (diff) | |
download | glibc-5c76ff279fa8fd1425b86a39fe75507660cc0b5c.zip glibc-5c76ff279fa8fd1425b86a39fe75507660cc0b5c.tar.gz glibc-5c76ff279fa8fd1425b86a39fe75507660cc0b5c.tar.bz2 |
Update.
2004-02-13 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/powerpc64/__longjmp-common.S: New file.
* sysdeps/powerpc/powerpc64/__longjmp.S [NOT_IN_libc](__longjmp):
Non-versioned __longjmp for rtld-__longjmp.
[!NOT_IN_libc](__vmx__longjmp): Add VMX reg support and define as
default version of __longjmp.
[SHARED && SHLIB_COMPAT (libc, GLIBC_2_3, GLIBC_2_3_4)]
(__novmx__longjmp): Original version of __longjmp.
* sysdeps/powerpc/powerpc64/bsd-_setjmp.S [NOT_IN_libc](_setjmp):
Non-versioned _setjmp for rtld-_setjmp.
[!NOT_IN_libc](__vmx_setjmp): Branch to __vmx__sigsetjmp and define
as default version of _setjmp.
[SHARED && SHLIB_COMPAT (libc, GLIBC_2_3, GLIBC_2_3_4)]
(__novmx_setjmp): Original version of _setjmp.
* sysdeps/powerpc/powerpc64/bsd-setjmp.S (__vmxsetjmp): Branch to
__vmx__sigsetjmp and define as default version of setjmp.
[SHARED && SHLIB_COMPAT (libc, GLIBC_2_3, GLIBC_2_3_4)]
(__novmxsetjmp): Original version of setjmp.
* sysdeps/powerpc/powerpc64/setjmp-common.S: New file.
* sysdeps/powerpc/powerpc64/setjmp.S [NOT_IN_libc](__setjmp):
Non-versioned __sigsetjmp for rtld-setjmp.
[!NOT_IN_libc](__vmx__sigsetjmp): Add VMX reg support and define
as default version of __sigsetjmp.
[SHARED && SHLIB_COMPAT (libc, GLIBC_2_3, GLIBC_2_3_4)]
(__novmx__sigsetjmp): Original version of __sigsetjmp.
* sysdeps/powerpc/powerpc32/__longjmp-common.S: New File
* sysdeps/powerpc/powerpc32/__longjmp.S [NOT_IN_libc](__longjmp):
Non-versioned __longjmp for rtld-__longjmp.
[!NOT_IN_libc](__vmx__longjmp): Add VMX reg support and define as
default version of __longjmp.
[SHARED && SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_3_4)]
(__novmx__longjmp): Original version of __longjmp.
* sysdeps/powerpc/powerpc32/bsd-_setjmp.S [NOT_IN_libc](_setjmp):
Non-versioned _setjmp for rtld-_setjmp.
[!NOT_IN_libc](__vmx_setjmp): Branch to __vmx__sigsetjmp and define
as default version of _setjmp.
[SHARED && SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_3_4)]
(__novmx_setjmp): Original version of _setjmp.
* sysdeps/powerpc/powerpc32/bsd-setjmp.S (__vmxsetjmp): Branch to
__vmx__sigsetjmp and define as default version of setjmp.
[SHARED && SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_3_4)]
(__novmxsetjmp): Original version of setjmp.
* sysdeps/powerpc/powerpc32/fpu/__longjmp-common.S: New file.
* sysdeps/powerpc/powerpc32/fpu/__longjmp.S [NOT_IN_libc](__longjmp):
Non-versioned __longjmp for rtld-__longjmp.
[!NOT_IN_libc](__vmx__longjmp): Add VMX reg support and define as
default version of __longjmp.
[SHARED && SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_3_4)]
(__novmx__longjmp): Original version of __longjmp.
* sysdeps/powerpc/powerpc32/fpu/setjmp-common.S: New file.
* sysdeps/powerpc/powerpc32/fpu/setjmp.S [NOT_IN_libc](__setjmp):
Non-versioned __sigsetjmp for rtld-setjmp.
[!NOT_IN_libc](__vmx__sigsetjmp): Add VMX reg support and define
as default version of __sigsetjmp.
[SHARED && SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_3_4)]
(__novmx__sigsetjmp): Original version of __sigsetjmp.
* sysdeps/powerpc/powerpc32/setjmp-common.S: New file.
* sysdeps/powerpc/powerpc32/setjmp.S [NOT_IN_libc](__setjmp):
Non-versioned __sigsetjmp for rtld-setjmp.
[!NOT_IN_libc](__vmx__sigsetjmp): Add VMX reg support and define
as default version of __sigsetjmp.
[SHARED && SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_3_4)]
(__novmx__sigsetjmp): Original version of __sigsetjmp.
* sysdeps/powerpc/Dist: New File.
* sysdeps/powerpc/Makefile (sysdep_routines): Add novmx-longjmp.c
and novmx-sigjmp.c
* sysdeps/powerpc/Versions (libc): To GLIBC_2.3_4 add _longjmp,
__sigsetjmp, _setjmp, longjmp, and setjmp. To GLIBC_PRIVATE add
__novmx__libc_longjmp, __novmx__libc_siglongjmp, __vmx__libc_longjmp,
and __vmx__libc_siglongjmp.
* sysdeps/powerpc/bits/setjmp.h: Define JB_VRSAVE, JB_VRS, and adjust
JB_SIZE to add VMX regs to __jmp_buf.
* sysdeps/powerpc/longjmp.c: New file.
* sysdeps/powerpc/novmxsetjmp.h: New file.
* sysdeps/powerpc/novmx-longjmp.c: New file.
* sysdeps/powerpc/novmx-sigjmp.c: New file.
* sysdeps/powerpc/sigjmp.c: New file.
Diffstat (limited to 'sysdeps/powerpc/bits/setjmp.h')
-rw-r--r-- | sysdeps/powerpc/bits/setjmp.h | 28 |
1 files changed, 22 insertions, 6 deletions
diff --git a/sysdeps/powerpc/bits/setjmp.h b/sysdeps/powerpc/bits/setjmp.h index f849fe2..3134916 100644 --- a/sysdeps/powerpc/bits/setjmp.h +++ b/sysdeps/powerpc/bits/setjmp.h @@ -1,4 +1,4 @@ -/* Copyright (C) 1997, 1998, 2000, 2003 Free Software Foundation, Inc. +/* Copyright (C) 1997, 1998, 2000, 2003, 2004 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -37,22 +37,38 @@ # define JB_LR 2 /* The address we will return to */ # if __WORDSIZE == 64 # define JB_GPRS 3 /* GPRs 14 through 31 are saved, 18*2 words total. */ -# define JB_CR 21 /* Condition code registers. */ +# define JB_CR 21 /* Condition code registers with the VRSAVE at */ + /* offset 172 (low half of the double word. */ # define JB_FPRS 22 /* FPRs 14 through 31 are saved, 18*2 words total. */ -# define JB_SIZE (40*8) +# define JB_SIZE (64 * 8) /* As per PPC64-VMX ABI. */ +# define JB_VRSAVE 21 /* VRSAVE shares a double word with the CR at offset */ + /* 168 (high half of the double word). */ +# define JB_VRS 40 /* VRs 20 through 31 are saved, 12*4 words total. */ # else # define JB_GPRS 3 /* GPRs 14 through 31 are saved, 18 in total. */ # define JB_CR 21 /* Condition code registers. */ # define JB_FPRS 22 /* FPRs 14 through 31 are saved, 18*2 words total. */ -# define JB_SIZE (58*4) +# define JB_SIZE ((64 + (12 * 4)) * 4) +# define JB_VRSAVE 62 +# define JB_VRS 64 # endif #endif + +/* The current powerpc 32-bit Altivec ABI specifies for SVR4 ABI and EABI + the vrsave must be at byte 248 & v20 at byte 256. So we must pad this + correctly on 32 bit. It also insists that vecregs are only gauranteed + 4 byte alignment so we need to use vperm in the setjmp/longjmp routines. + We have to version the code because members like int __mask_was_saved + in the jmp_buf will move as jmp_buf is now larger than 248 bytes. We + cannot keep the altivec jmp_buf backward compatible with the jmp_buf. */ #ifndef _ASM # if __WORDSIZE == 64 -typedef long int __jmp_buf[40]; +typedef long int __jmp_buf[64] __attribute__ ((__aligned__ (16))); # else -typedef long int __jmp_buf[58]; +/* The alignment is not essential, i.e.the buffer can be copied to a 4 byte + aligned buffer as per the ABI it is just added for performance reasons. */ +typedef long int __jmp_buf[64 + (12 * 4)] __attribute__ ((__aligned__ (16))); # endif #endif |