diff options
Diffstat (limited to 'lib/std/start.zig')
| -rw-r--r-- | lib/std/start.zig | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/lib/std/start.zig b/lib/std/start.zig index 326857d9c0..78845904d6 100644 --- a/lib/std/start.zig +++ b/lib/std/start.zig @@ -329,6 +329,11 @@ fn _start() callconv(.Naked) noreturn { \\ jsr (%%pc, %%a0) , .mips, .mipsel => + \\ bal 1f + \\ .gpword . + \\ 1: + \\ lw $gp, 0($ra) + \\ subu $gp, $ra, $gp \\ move $fp, $0 \\ move $ra, $0 \\ move $a0, $sp @@ -336,6 +341,14 @@ fn _start() callconv(.Naked) noreturn { \\ j %[posixCallMainAndExit] , .mips64, .mips64el => + \\ bal 1f + \\ .gpdword . + \\ 1: + // The `gp` register on MIPS serves a similar purpose to `r2` (ToC pointer) on PPC64. + // We need to set it up in order for dynamically-linked / position-independent code to + // work. + \\ ld $gp, 0($ra) + \\ dsubu $gp, $ra, $gp \\ move $fp, $0 \\ move $ra, $0 \\ move $a0, $sp |