diff options
| author | Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> | 2013-12-20 14:05:12 +0100 |
|---|---|---|
| committer | Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> | 2013-12-20 14:08:04 +0100 |
| commit | 7bec7d6325c9e46767eb46abab0fd941c14ac0e5 (patch) | |
| tree | 4c6ef94598f83f7604efdb87ffc30f509aa2c380 | |
| parent | f0ab57ca009fdf0c80df30af3756dfddc83d6e68 (diff) | |
NPTL: fork: relief register pressure on arm thumb1
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
| -rw-r--r-- | libpthread/nptl/sysdeps/unix/sysv/linux/fork.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/fork.c b/libpthread/nptl/sysdeps/unix/sysv/linux/fork.c index 0db32d836..af4041031 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/fork.c +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/fork.c @@ -58,8 +58,11 @@ fresetlockfiles (void) } pid_t -#if defined __arm__ && defined __thumb__ && __GNUC_PREREQ (4,6) && !__GNUC_PREREQ (4,8) -/* GCC PR target/53735 */ +#if defined __arm__ && defined __thumb__ && __GNUC_PREREQ (4,6) +/* GCC PR target/53735 + * In thumb1 we run out of registers when compiling with Os so relax that + * to have more registers available for spilling by using O2 here. + */ attribute_optimize("O2") #endif fork (void) |