diff options
Diffstat (limited to 'libpsn00b/psxetc/_dl_resolve_wrapper.s')
| -rw-r--r-- | libpsn00b/psxetc/_dl_resolve_wrapper.s | 48 |
1 files changed, 0 insertions, 48 deletions
diff --git a/libpsn00b/psxetc/_dl_resolve_wrapper.s b/libpsn00b/psxetc/_dl_resolve_wrapper.s deleted file mode 100644 index b715720..0000000 --- a/libpsn00b/psxetc/_dl_resolve_wrapper.s +++ /dev/null @@ -1,48 +0,0 @@ -# PSn00bSDK dynamic linker -# (C) 2021-2022 spicyjpeg - MPL licensed -# -# This function is called by the lazy loader stubs generated by GCC in the -# .plt/.MIPS.stubs section when attempting to call a GOT entry whose address -# hasn't yet been resolved. The generated stubs conform to the MIPS ABI and -# uses the following registers: -# - $t7 = address the resolved function should return to (i.e. $ra of the -# caller that triggered the stub) -# - $t8 = index of the function in the .dynsym symbol table -# - $t9 = _dl_resolve_wrapper itself's address - -.set noreorder - -.section .text._dl_resolve_wrapper, "ax", @progbits -.global _dl_resolve_wrapper -.type _dl_resolve_wrapper, @function - -_dl_resolve_wrapper: - # Save the arguments being passed to the function to be resolved. - addiu $sp, -20 - sw $a0, 0($sp) - sw $a1, 4($sp) - sw $a2, 8($sp) - sw $a3, 12($sp) - sw $t7, 16($sp) # (will be restored directly to $ra) - - # Figure out where the DLL's struct is. dlinit() places a pointer to the - # struct in the second GOT entry, so it's just a matter of indexing the GOT - # using $gp. Then call _dl_resolve_helper with the struct and $t8 as - # arguments, and store the return value into $t0. - lw $a0, -0x7fec($gp) # dll = &((uint32_t *) (gp - 0x7ff0))[1] - move $a1, $t8 - - jal _dl_resolve_helper - addiu $sp, -8 - addiu $sp, 8 - - # Restore the arguments from the stack and tail-call the function at the - # address returned by the resolver. - lw $a0, 0($sp) - lw $a1, 4($sp) - lw $a2, 8($sp) - lw $a3, 12($sp) - lw $ra, 16($sp) - - jr $v0 - addiu $sp, 20 |