diff options
author | Richard Sandiford <rdsandiford@googlemail.com> | 2002-08-07 17:07:42 +0000 |
---|---|---|
committer | Richard Sandiford <rdsandiford@googlemail.com> | 2002-08-07 17:07:42 +0000 |
commit | 172fda76d4799483735717fa1c35e1c771d3938c (patch) | |
tree | f33fe53f89219924b843a532b2bbefeb3acda8b6 /newlib | |
parent | 235d9fdadc51e1c24899e164af75cbec0fea267f (diff) | |
download | newlib-172fda76d4799483735717fa1c35e1c771d3938c.zip newlib-172fda76d4799483735717fa1c35e1c771d3938c.tar.gz newlib-172fda76d4799483735717fa1c35e1c771d3938c.tar.bz2 |
* 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.
Diffstat (limited to 'newlib')
-rw-r--r-- | newlib/ChangeLog | 7 | ||||
-rw-r--r-- | newlib/libc/include/machine/setjmp.h | 6 | ||||
-rw-r--r-- | newlib/libc/machine/mips/setjmp.S | 161 |
3 files changed, 74 insertions, 100 deletions
diff --git a/newlib/ChangeLog b/newlib/ChangeLog index ed5b0c0..297af4a 100644 --- a/newlib/ChangeLog +++ b/newlib/ChangeLog @@ -1,3 +1,10 @@ +2002-08-07 Richard Sandiford <rsandifo@redhat.com> + + * 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. + 2002-08-04 Christopher Faylor <cgf@redhat.com> * libc/stdio/popen.c (popen): Allow "rb", "rt", "wb", and "wt" diff --git a/newlib/libc/include/machine/setjmp.h b/newlib/libc/include/machine/setjmp.h index 4cf6cf1..be82e3e 100644 --- a/newlib/libc/include/machine/setjmp.h +++ b/newlib/libc/include/machine/setjmp.h @@ -71,10 +71,12 @@ _BEGIN_STD_C #ifdef __mips__ #ifdef __mips64 -#define _JBLEN 23 #define _JBTYPE long long -#else +#endif +#ifdef __mips_soft_float #define _JBLEN 11 +#else +#define _JBLEN 23 #endif #endif diff --git a/newlib/libc/machine/mips/setjmp.S b/newlib/libc/machine/mips/setjmp.S index 9778394..268cb18 100644 --- a/newlib/libc/machine/mips/setjmp.S +++ b/newlib/libc/machine/mips/setjmp.S @@ -1,72 +1,76 @@ /* This is a simple version of setjmp and longjmp for MIPS 32 and 64. - The MIPS 32 version does NOT save the floating point register, which is - wrong, but I don't know how to cleanly handle machines without a - floating point coprocessor. - - Ian Lance Taylor, Cygnus Support, 13 May 1993. - - The MIPS 64 version saves registers fp20 to fp31. 23 registers - are saved in all. */ + Ian Lance Taylor, Cygnus Support, 13 May 1993. */ #ifdef __mips16 /* This file contains 32 bit assembly code. */ .set nomips16 #endif +#define GPR_LAYOUT \ + GPR_OFFSET ($16, 0); \ + GPR_OFFSET ($17, 1); \ + GPR_OFFSET ($18, 2); \ + GPR_OFFSET ($19, 3); \ + GPR_OFFSET ($20, 4); \ + GPR_OFFSET ($21, 5); \ + GPR_OFFSET ($22, 6); \ + GPR_OFFSET ($23, 7); \ + GPR_OFFSET ($29, 8); \ + GPR_OFFSET ($30, 9); \ + GPR_OFFSET ($31, 10) + +#define NUM_GPRS_SAVED 11 + +#ifdef __mips_hard_float +#define FPR_LAYOUT \ + FPR_OFFSET ($f20, 0); \ + FPR_OFFSET ($f21, 1); \ + FPR_OFFSET ($f22, 2); \ + FPR_OFFSET ($f23, 3); \ + FPR_OFFSET ($f24, 4); \ + FPR_OFFSET ($f25, 5); \ + FPR_OFFSET ($f26, 6); \ + FPR_OFFSET ($f27, 7); \ + FPR_OFFSET ($f28, 8); \ + FPR_OFFSET ($f29, 9); \ + FPR_OFFSET ($f30, 10); \ + FPR_OFFSET ($f31, 11) +#else +#define FPR_LAYOUT +#endif + +#ifdef __mips64 +#define BYTES_PER_WORD 8 +#define LOAD_GPR ld +#define LOAD_FPR ldc1 +#define STORE_GPR sd +#define STORE_FPR sdc1 +#else +#define BYTES_PER_WORD 4 +#define LOAD_GPR lw +#define LOAD_FPR lwc1 +#define STORE_GPR sw +#define STORE_FPR swc1 +#endif + +#define GPOFF(INDEX) (INDEX * BYTES_PER_WORD) +#define FPOFF(INDEX) ((INDEX + NUM_GPRS_SAVED) * BYTES_PER_WORD) + /* int setjmp (jmp_buf); */ .globl setjmp .ent setjmp setjmp: .frame $sp,0,$31 -#ifdef __mips64 - - sd $16, 000($4) /* s0 */ - sd $17, 010($4) /* s1 */ - sd $18, 020($4) /* s2 */ - sd $19, 030($4) /* s3 */ - sd $20, 040($4) /* s4 */ - sd $21, 050($4) /* s5 */ - sd $22, 060($4) /* s6 */ - sd $23, 070($4) /* s7 */ - - sdc1 $f20, 0100($4) - sdc1 $f21, 0110($4) - sdc1 $f22, 0120($4) - sdc1 $f23, 0130($4) - sdc1 $f24, 0140($4) - sdc1 $f25, 0150($4) - sdc1 $f26, 0160($4) - sdc1 $f27, 0170($4) - sdc1 $f28, 0200($4) - sdc1 $f29, 0210($4) - sdc1 $f30, 0220($4) - sdc1 $f31, 0230($4) - - sd $29, 0240($4) /* sp */ - sd $30, 0250($4) /* fp */ - sd $31, 0260($4) /* ra */ - -#else /* not __mips64 */ - - sw $16,0($4) /* $s0 */ - sw $17,4($4) /* $s1 */ - sw $18,8($4) /* $s2 */ - sw $19,12($4) /* $s3 */ - sw $20,16($4) /* $s4 */ - sw $21,20($4) /* $s5 */ - sw $22,24($4) /* $s6 */ - sw $23,28($4) /* $s7 */ - sw $30,32($4) /* $s8 */ - - sw $sp,36($4) - sw $31,40($4) - -#endif /* not __mips64 */ +#define GPR_OFFSET(REG, INDEX) STORE_GPR REG,GPOFF(INDEX)($4) +#define FPR_OFFSET(REG, INDEX) STORE_FPR REG,FPOFF(INDEX)($4) + GPR_LAYOUT + FPR_LAYOUT +#undef GPR_OFFSET +#undef FPR_OFFSET move $2,$0 - j $31 .end setjmp @@ -77,56 +81,17 @@ setjmp: longjmp: .frame $sp,0,$31 -#ifdef __mips64 - - ld $16, 000($4) /* s0 */ - ld $17, 010($4) /* s1 */ - ld $18, 020($4) /* s2 */ - ld $19, 030($4) /* s3 */ - ld $20, 040($4) /* s4 */ - ld $21, 050($4) /* s5 */ - ld $22, 060($4) /* s6 */ - ld $23, 070($4) /* s7 */ - - ldc1 $f20, 0100($4) - ldc1 $f21, 0110($4) - ldc1 $f22, 0120($4) - ldc1 $f23, 0130($4) - ldc1 $f24, 0140($4) - ldc1 $f25, 0150($4) - ldc1 $f26, 0160($4) - ldc1 $f27, 0170($4) - ldc1 $f28, 0200($4) - ldc1 $f29, 0210($4) - ldc1 $f30, 0220($4) - ldc1 $f31, 0230($4) - - ld $29, 0240($4) /* sp */ - ld $30, 0250($4) /* fp */ - ld $31, 0260($4) /* ra */ - -#else /* not __mips64 */ - - lw $16,0($4) /* $s0 */ - lw $17,4($4) /* $s1 */ - lw $18,8($4) /* $s2 */ - lw $19,12($4) /* $s3 */ - lw $20,16($4) /* $s4 */ - lw $21,20($4) /* $s5 */ - lw $22,24($4) /* $s6 */ - lw $23,28($4) /* $s7 */ - lw $30,32($4) /* $s8 */ - - lw $sp,36($4) - lw $31,40($4) - -#endif /* not __mips64 */ +#define GPR_OFFSET(REG, INDEX) LOAD_GPR REG,GPOFF(INDEX)($4) +#define FPR_OFFSET(REG, INDEX) LOAD_FPR REG,FPOFF(INDEX)($4) + GPR_LAYOUT + FPR_LAYOUT +#undef GPR_OFFSET +#undef FPR_OFFSET bne $5,$0,1f li $5,1 1: move $2,$5 - j $31 .end longjmp |