diff options
Diffstat (limited to 'sysdeps/mips/elf')
| -rw-r--r-- | sysdeps/mips/elf/start.S | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/sysdeps/mips/elf/start.S b/sysdeps/mips/elf/start.S index 7fee4e71c3..064fe7e6f4 100644 --- a/sysdeps/mips/elf/start.S +++ b/sysdeps/mips/elf/start.S @@ -27,7 +27,7 @@ segment. The SVR4/Mips ABI (pages 3-31, 3-32) says that when the entry point runs, most registers' values are unspecified, except for: - v1 ($2) Contains a function pointer to be registered with `atexit'. + v0 ($2) Contains a function pointer to be registered with `atexit'. This is how the dynamic linker arranges to have DT_FINI functions called for shared libraries that have been loaded before this code runs. @@ -76,7 +76,9 @@ ENTRY_POINT: dla $4, main /* main */ lw $5, 0($29) /* argc */ addu $6, $29, 4 /* argv */ - /* Allocate space on the stack for seven arguments but align to 32. */ + /* Allocate space on the stack for seven arguments and make sure + the stack is aligned to double words (8 bytes). */ + and $29, 0xfffffff8 subu $29, 32 dla $7, _init /* init */ dla $8, _fini @@ -84,7 +86,9 @@ ENTRY_POINT: la $4, main /* main */ lw $5, 0($29) /* argc */ addu $6, $29, 4 /* argv */ - /* Allocate space on the stack for seven arguments but align to 32. */ + /* Allocate space on the stack for seven arguments and make sure + the stack is aligned to double words (8 bytes). */ + and $29, 0xfffffff8 subu $29, 32 la $7, _init /* init */ la $8, _fini |