* libc/include/machine/setjmp.h: For mips, define _JBLEN based
based on __mips_soft_float rather than __mips64. * libc/machine/mips/setjmp.S: Provide hard and soft float versions of both 32-bit and 64-bit code.
This commit is contained in:
Richard Sandiford
parent
235d9fdadc
commit
172fda76d4
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@ -1,3 +1,10 @@
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2002-08-07 Richard Sandiford <rsandifo@redhat.com>
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* libc/include/machine/setjmp.h: For mips, define _JBLEN based
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based on __mips_soft_float rather than __mips64.
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* libc/machine/mips/setjmp.S: Provide hard and soft float versions
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of both 32-bit and 64-bit code.
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2002-08-04 Christopher Faylor <cgf@redhat.com>
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* libc/stdio/popen.c (popen): Allow "rb", "rt", "wb", and "wt"
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@ -71,10 +71,12 @@ _BEGIN_STD_C
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#ifdef __mips__
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#ifdef __mips64
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#define _JBLEN 23
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#define _JBTYPE long long
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#else
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#endif
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#ifdef __mips_soft_float
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#define _JBLEN 11
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#else
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#define _JBLEN 23
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#endif
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#endif
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@ -1,72 +1,76 @@
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/* This is a simple version of setjmp and longjmp for MIPS 32 and 64.
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The MIPS 32 version does NOT save the floating point register, which is
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wrong, but I don't know how to cleanly handle machines without a
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floating point coprocessor.
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Ian Lance Taylor, Cygnus Support, 13 May 1993.
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The MIPS 64 version saves registers fp20 to fp31. 23 registers
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are saved in all. */
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Ian Lance Taylor, Cygnus Support, 13 May 1993. */
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#ifdef __mips16
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/* This file contains 32 bit assembly code. */
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.set nomips16
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#endif
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#define GPR_LAYOUT \
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GPR_OFFSET ($16, 0); \
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GPR_OFFSET ($17, 1); \
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GPR_OFFSET ($18, 2); \
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GPR_OFFSET ($19, 3); \
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GPR_OFFSET ($20, 4); \
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GPR_OFFSET ($21, 5); \
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GPR_OFFSET ($22, 6); \
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GPR_OFFSET ($23, 7); \
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GPR_OFFSET ($29, 8); \
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GPR_OFFSET ($30, 9); \
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GPR_OFFSET ($31, 10)
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#define NUM_GPRS_SAVED 11
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#ifdef __mips_hard_float
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#define FPR_LAYOUT \
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FPR_OFFSET ($f20, 0); \
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FPR_OFFSET ($f21, 1); \
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FPR_OFFSET ($f22, 2); \
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FPR_OFFSET ($f23, 3); \
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FPR_OFFSET ($f24, 4); \
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FPR_OFFSET ($f25, 5); \
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FPR_OFFSET ($f26, 6); \
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FPR_OFFSET ($f27, 7); \
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FPR_OFFSET ($f28, 8); \
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FPR_OFFSET ($f29, 9); \
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FPR_OFFSET ($f30, 10); \
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FPR_OFFSET ($f31, 11)
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#else
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#define FPR_LAYOUT
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#endif
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#ifdef __mips64
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#define BYTES_PER_WORD 8
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#define LOAD_GPR ld
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#define LOAD_FPR ldc1
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#define STORE_GPR sd
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#define STORE_FPR sdc1
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#else
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#define BYTES_PER_WORD 4
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#define LOAD_GPR lw
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#define LOAD_FPR lwc1
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#define STORE_GPR sw
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#define STORE_FPR swc1
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#endif
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#define GPOFF(INDEX) (INDEX * BYTES_PER_WORD)
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#define FPOFF(INDEX) ((INDEX + NUM_GPRS_SAVED) * BYTES_PER_WORD)
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/* int setjmp (jmp_buf); */
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.globl setjmp
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.ent setjmp
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setjmp:
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.frame $sp,0,$31
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#ifdef __mips64
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sd $16, 000($4) /* s0 */
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sd $17, 010($4) /* s1 */
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sd $18, 020($4) /* s2 */
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sd $19, 030($4) /* s3 */
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sd $20, 040($4) /* s4 */
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sd $21, 050($4) /* s5 */
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sd $22, 060($4) /* s6 */
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sd $23, 070($4) /* s7 */
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sdc1 $f20, 0100($4)
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sdc1 $f21, 0110($4)
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sdc1 $f22, 0120($4)
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sdc1 $f23, 0130($4)
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sdc1 $f24, 0140($4)
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sdc1 $f25, 0150($4)
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sdc1 $f26, 0160($4)
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sdc1 $f27, 0170($4)
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sdc1 $f28, 0200($4)
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sdc1 $f29, 0210($4)
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sdc1 $f30, 0220($4)
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sdc1 $f31, 0230($4)
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sd $29, 0240($4) /* sp */
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sd $30, 0250($4) /* fp */
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sd $31, 0260($4) /* ra */
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#else /* not __mips64 */
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sw $16,0($4) /* $s0 */
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sw $17,4($4) /* $s1 */
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sw $18,8($4) /* $s2 */
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sw $19,12($4) /* $s3 */
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sw $20,16($4) /* $s4 */
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sw $21,20($4) /* $s5 */
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sw $22,24($4) /* $s6 */
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sw $23,28($4) /* $s7 */
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sw $30,32($4) /* $s8 */
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sw $sp,36($4)
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sw $31,40($4)
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#endif /* not __mips64 */
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#define GPR_OFFSET(REG, INDEX) STORE_GPR REG,GPOFF(INDEX)($4)
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#define FPR_OFFSET(REG, INDEX) STORE_FPR REG,FPOFF(INDEX)($4)
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GPR_LAYOUT
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FPR_LAYOUT
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#undef GPR_OFFSET
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#undef FPR_OFFSET
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move $2,$0
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j $31
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.end setjmp
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@ -77,56 +81,17 @@ setjmp:
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longjmp:
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.frame $sp,0,$31
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#ifdef __mips64
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ld $16, 000($4) /* s0 */
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ld $17, 010($4) /* s1 */
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ld $18, 020($4) /* s2 */
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ld $19, 030($4) /* s3 */
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ld $20, 040($4) /* s4 */
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ld $21, 050($4) /* s5 */
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ld $22, 060($4) /* s6 */
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ld $23, 070($4) /* s7 */
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ldc1 $f20, 0100($4)
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ldc1 $f21, 0110($4)
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ldc1 $f22, 0120($4)
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ldc1 $f23, 0130($4)
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ldc1 $f24, 0140($4)
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ldc1 $f25, 0150($4)
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ldc1 $f26, 0160($4)
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ldc1 $f27, 0170($4)
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ldc1 $f28, 0200($4)
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ldc1 $f29, 0210($4)
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ldc1 $f30, 0220($4)
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ldc1 $f31, 0230($4)
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ld $29, 0240($4) /* sp */
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ld $30, 0250($4) /* fp */
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ld $31, 0260($4) /* ra */
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#else /* not __mips64 */
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lw $16,0($4) /* $s0 */
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lw $17,4($4) /* $s1 */
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lw $18,8($4) /* $s2 */
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lw $19,12($4) /* $s3 */
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lw $20,16($4) /* $s4 */
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lw $21,20($4) /* $s5 */
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lw $22,24($4) /* $s6 */
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lw $23,28($4) /* $s7 */
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lw $30,32($4) /* $s8 */
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lw $sp,36($4)
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lw $31,40($4)
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#endif /* not __mips64 */
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#define GPR_OFFSET(REG, INDEX) LOAD_GPR REG,GPOFF(INDEX)($4)
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#define FPR_OFFSET(REG, INDEX) LOAD_FPR REG,FPOFF(INDEX)($4)
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GPR_LAYOUT
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FPR_LAYOUT
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#undef GPR_OFFSET
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#undef FPR_OFFSET
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bne $5,$0,1f
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li $5,1
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1:
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move $2,$5
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j $31
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.end longjmp
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