From http://www.ltc.com/~brad/mips/glibc-2.2.5-mips-build-gmon.diff

 See http://www.ltc.com/~brad/mips/mips-cross-toolchain.html

 --- glibc-2.2.5/sysdeps/mips/machine-gmon.h	2001-08-13 04:42:44.000000000 -0400

 +++ glibc-2.2.5/sysdeps/mips/machine-gmon.h	2002-09-25 17:10:59.000000000 -0400

 @@ -17,42 +17,52 @@

     Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA

     02111-1307 USA.  */

 -#define _MCOUNT_DECL static void __mcount

 +#define _MCOUNT_DECL(frompc,selfpc) \

 +static void __attribute_used__ __mcount (u_long frompc, u_long selfpc)

  /* Call __mcount with our the return PC for our caller,

     and the return PC our caller will return to.  */

  #ifdef __PIC__

  #define CPLOAD ".cpload $25;"

 +#define CPRESTORE ".cprestore 44\n\t"

  #else

  #define CPLOAD

 +#define CPRESTORE

  #endif

  #define MCOUNT asm(\

 -	".globl _mcount;" \

 -	".align 2;" \

 -	".type _mcount,@function;" \

 -        "_mcount:;" \

 -        ".set noreorder;" \

 -        ".set noat;" \

 +	".globl _mcount;\n\t" \

 +	".align 2;\n\t" \

 +	".type _mcount,@function;\n\t" \

 +	".ent _mcount\n\t" \

 +        "_mcount:\n\t" \

 +        ".frame $sp,44,$31\n\t" \

 +        ".set noreorder;\n\t" \

 +        ".set noat;\n\t" \

          CPLOAD \

 -        "sw $4,8($29);" \

 -        "sw $5,12($29);" \

 -        "sw $6,16($29);" \

 -        "sw $7,20($29);" \

 -        "sw $1,0($29);" \

 -        "sw $31,4($29);" \

 -        "move $5,$31;" \

 -        "move $4,$1;" \

 -        "jal __mcount;" \

 -	"nop;" \

 -        "lw $4,8($29);" \

 -        "lw $5,12($29);" \

 -        "lw $6,16($29);" \

 -        "lw $7,20($29);" \

 -        "lw $31,4($29);" \

 -        "lw $1,0($29);" \

 -        "addu $29,$29,8;" \

 -        "j $31;" \

 -        "move $31,$1;" \

 -        ".set reorder;" \

 -        ".set at");

 +	"subu $29,$29,48;\n\t" \

 +	CPRESTORE \

 +        "sw $4,24($29);\n\t" \

 +        "sw $5,28($29);\n\t" \

 +        "sw $6,32($29);\n\t" \

 +        "sw $7,36($29);\n\t" \

 +        "sw $2,40($29);\n\t" \

 +        "sw $1,16($29);\n\t" \

 +        "sw $31,20($29);\n\t" \

 +        "move $5,$31;\n\t" \

 +        "move $4,$1;\n\t" \

 +        "jal __mcount;\n\t" \

 +        "nop;\n\t" \

 +        "lw $4,24($29);\n\t" \

 +        "lw $5,28($29);\n\t" \

 +        "lw $6,32($29);\n\t" \

 +        "lw $7,36($29);\n\t" \

 +        "lw $2,40($29);\n\t" \

 +        "lw $31,20($29);\n\t" \

 +        "lw $1,16($29);\n\t" \

 +        "addu $29,$29,56;\n\t" \

 +        "j $31;\n\t" \

 +        "move $31,$1;\n\t" \

 +        ".set reorder;\n\t" \

 +        ".set at\n\t" \

 +        ".end _mcount");