diff options
Diffstat (limited to 'ld/testsuite/ld-mips-elf/mips16-pic-1.inc')
| -rw-r--r-- | ld/testsuite/ld-mips-elf/mips16-pic-1.inc | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/ld/testsuite/ld-mips-elf/mips16-pic-1.inc b/ld/testsuite/ld-mips-elf/mips16-pic-1.inc new file mode 100644 index 0000000000..9268a074fe --- /dev/null +++ b/ld/testsuite/ld-mips-elf/mips16-pic-1.inc @@ -0,0 +1,147 @@ + # Declare a function called NAME and an __fn_NAME stub for it. + # Make the stub use la_TYPE to load the the target address into $2. + .macro stub,name,type + .set nomips16 + .section .mips16.fn.\name, "ax", @progbits + .ent __fn_\name +__fn_\name: + la_\type \name + mfc1 $4,$f12 + jr $2 + nop + .end __fn_\name + + .set mips16 + .text + .ent \name +\name: +__fn_local_\name: + jr $31 + nop + .end \name + .endm + + # Like stub, but ensure NAME is a local symbol. + .macro lstub,name,type + stub \name, \type + .equ local_\name,1 + .endm + + # Like stub, but ensure NAME is a hidden symbol. + .macro hstub,name,type + .globl \name + .hidden \name + stub \name, \type + .endm + + # Like lstub, but make the MIPS16 function global rather than local. + .macro gstub,name,type + .globl \name + stub \name, \type + .endm + + # Use an absolute sequence to load NAME into a register. + .macro la_noshared,name + lui $2,%hi(\name) + addiu $2,$2,%lo(\name) + .endm + + # Use the normal PIC sequence to load __fn_local_NAME into $2 + # and emit a dummy relocation against NAME. This macro is always + # used at the start of a function. + .macro la_shared,name + .reloc 0,R_MIPS_NONE,\name + .cpload $25 + la $2,__fn_local_\name + .endm + + # Use TYPE (either LSTUB, HSTUB or GSTUB) to define functions + # called a_NAME and b_NAME. The former uses absolute accesses + # and the latter uses PIC accesses. + .macro decl,name,type + \type a_\name, noshared + \type b_\name, shared + .endm + + # Emit the MIPS16 PIC sequence for setting $28 from $25. + # Make the value of $25 available in $2 as well. + .macro cpload_mips16 + li $2,%hi(_gp_disp) + addiu $3,$pc,%lo(_gp_disp) + sll $2,16 + addu $2,$2,$3 + move $28,$2 + .endm + + # Likewise, but for non-MIPS16 code. + .macro cpload_nomips16 + .cpload $25 + move $2,$28 + .endm + + # Start a PIC function in ISA mode MODE, which is either "mips16" + # or "nomips16". + .macro pic_prologue,mode + cpload_\mode + addiu $sp,$sp,-32 + sw $2,16($sp) + sw $31,20($sp) + .endm + + # Use a PIC function to call NAME. + .macro pic_call,name,mode + .ifdef local_\name + .ifc \mode,mips16 + lw $2,%got(__fn_local_\name)($2) + addiu $2,%lo(__fn_local_\name) + .else + lw $2,%got(\name)($2) + addiu $2,%lo(\name) + .endif + .else + lw $2,%call16(\name)($2) + .endif + jalr $2 + move $25,$2 + lw $2,16($sp) + move $28,$2 + .endm + + # Finish a PIC function started by pic_prologue. + .macro pic_epilogue + lw $2,20($sp) + jr $2 + addiu $sp,$sp,32 + .endm + + # Use PIC %call16 sequences to call a_NAME and b_NAME. + # MODE selects the ISA mode of the code: either "mips16" + # or "nomips16". + .macro callpic,name,mode + .text + .set \mode + .ent callpic_\name\()_\mode +callpic_\name\()_\mode: + pic_prologue \mode + pic_call a_\name,\mode + pic_call b_\name,\mode + pic_epilogue + .end callpic_\name\()_\mode + .endm + + # Use absolute jals to call a_NAME and b_NAME. MODE selects the + # ISA mode of the code: either "mips16" or "nomips16". + .macro jals,name,mode + .text + .set \mode + .ent jals_\name\()_\mode +jals_\name\()_\mode: + .option pic0 + jal a_\name + nop + + jal b_\name + nop + .option pic2 + .end jals_\name\()_\mode + .endm |