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Diffstat (limited to 'ld/testsuite/ld-empic/runtesti.s')
-rw-r--r-- | ld/testsuite/ld-empic/runtesti.s | 94 |
1 files changed, 0 insertions, 94 deletions
diff --git a/ld/testsuite/ld-empic/runtesti.s b/ld/testsuite/ld-empic/runtesti.s deleted file mode 100644 index efa1953..0000000 --- a/ld/testsuite/ld-empic/runtesti.s +++ /dev/null @@ -1,94 +0,0 @@ -# Assembler initialization code for actual execution test. - -# This code becomes the start of the execution test program. It is -# responsible for initializing the static data, invoking the C code, -# and returning the result. It is called as though it were a C -# function with an argument of the address of the data segment. - -# We need to know the value of _ftext and _fdata at link time, but we -# have no way to actually get that at runtime. This is because when -# this code is compiled with -membedded-pic, the la instruction will -# be turned into an addiu $gp instruction. We work around this by -# storing the information in words in the .data section. We then load -# the values of these words *before* doing the runtime relocation. - .sdata -text_start: - .word _ftext -data_start: - .word _fdata - - .globl start - .text -start: - # Grab some space on the stack, just as though we were a real - # function. - addiu $sp,$sp,-8 - sw $31,0($sp) - - # Save the $gp register, and set it up for our data section. - sw $gp,4($sp) - - addu $gp,$4,0x8000 # macro - - # The start of the data segment is in $4. - - # Get the address of start into $5 in a position independent - # fashion. - .set noreorder - $LF1 = . + 8 - bal $LF1 - la $5,start-$LF1 # macro - .set reorder - addu $5,$5,$31 - - # Now get the address of _ftext into $6. - la $6,_ftext-start # macro - addu $6,$6,$5 - - # Get the value of _ftext used to link into $7. - lw $7,text_start # macro - - # Get the value of _fdata used to link into $8. - lw $8,data_start # macro - - # Get the address of __runtime_reloc_start into $9. - la $9,__runtime_reloc_start-start # macro - addu $9,$9,$5 - - # Get the address of __runtime_reloc_stop into $10. - la $10,__runtime_reloc_stop-start # macro - addu $10,$10,$5 - - # The words between $9 and $10 are the runtime initialization - # instructions. Step through and relocate them. First set - # $11 and $12 to the values to add to text and data sections, - # respectively. - subu $11,$6,$7 - subu $12,$4,$8 - -1: - bge $9,$10,3f # macro - lw $13,0($9) - and $14,$13,0xfffffffe # macro - move $15,$11 - beq $13,$14,2f - move $15,$12 -2: - addu $14,$14,$4 - lw $24,0($14) - addu $24,$24,$15 - sw $24,0($14) - addiu $9,$9,4 - b 1b -3: - - # Now the statically initialized data has been relocated - # correctly, and we can call the C code which does the actual - # testing. - bal foo - - # We return the value returned by the C code. - lw $31,0($sp) - lw $gp,4($sp) - addu $sp,$sp,8 - j $31 |