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* exec/loader-mips64el.s (rest_of_exec): Deal with assembler bugs.

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Po Lu 2025-04-15 17:11:56 +08:00
parent 458ad0cb89
commit 19b6e36a22
1 changed files with 4 additions and 2 deletions
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6
exec/loader-mips64el.s
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@ -175,13 +175,15 @@ rest_of_exec:
dadd $s1, $s1, $t0 # s1 = start of envp dadd $s1, $s1, $t0 # s1 = start of envp
skip_environ: skip_environ:
/* Locate the auxiliary vector. */ /* Locate the auxiliary vector. */
li $t8, 8 # DADDI2 isn't appropriate in delay slots.
1: ld $t0, ($s1) # t0 = *s1 1: ld $t0, ($s1) # t0 = *s1
bnez $t0, 1b # skip environment entry bnez $t0, 1b # skip environment entry
daddi $s1, $s1, 8 # s1++ dadd $s1, $s1, $t8 # s1++
move $s2, $s1 # s2 = end of environment move $s2, $s1 # s2 = end of environment
li $t8, 16
1: ld $t0, ($s1) # t0 = s1->a_type 1: ld $t0, ($s1) # t0 = s1->a_type
bnez $t0, 1b # skip auxiliary vector entry bnez $t0, 1b # skip auxiliary vector entry
daddi $s1, $s1, 16 # (Elf64_auxv_t *) s1++ dadd $s1, $s1, $t8 # (Elf64_auxv_t *) s1++
/* Decide how many bytes must be copied and where to /* Decide how many bytes must be copied and where to
save the file name. Move the stack pointer to a safe save the file name. Move the stack pointer to a safe
position below any data that must be preserved. */ position below any data that must be preserved. */