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| author | Rich Felker <dalias@aerifal.cx> | 2015-11-02 12:39:28 -0500 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2015-11-02 12:41:49 -0500 |
| commit | cb1bf2f321b45a06447133b3db00621b7300c456 (patch) | |
| tree | 50518595b1f221270ec0a209b5252c85d4ba140c /arch/powerpc/pthread_arch.h | |
| parent | fead7e3fc04729b4cc8a5feec4a172b389395212 (diff) | |
| download | musl-cb1bf2f321b45a06447133b3db00621b7300c456.tar.gz musl-cb1bf2f321b45a06447133b3db00621b7300c456.tar.bz2 musl-cb1bf2f321b45a06447133b3db00621b7300c456.tar.xz musl-cb1bf2f321b45a06447133b3db00621b7300c456.zip | |
properly access mcontext_t program counter in cancellation handler
using the actual mcontext_t definition rather than an overlaid pointer
array both improves correctness/readability and eliminates some ugly
hacks for archs with 64-bit registers bit 32-bit program counter.
also fix UB due to comparison of pointers not in a common array
object.
Diffstat (limited to 'arch/powerpc/pthread_arch.h')
| -rw-r--r-- | arch/powerpc/pthread_arch.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/powerpc/pthread_arch.h b/arch/powerpc/pthread_arch.h index bb7405d1..7c5c4fad 100644 --- a/arch/powerpc/pthread_arch.h +++ b/arch/powerpc/pthread_arch.h @@ -15,9 +15,8 @@ static inline struct pthread *__pthread_self() #define DTP_OFFSET 0x8000 -// offset of the PC register in mcontext_t, divided by the system wordsize // the kernel calls the ip "nip", it's the first saved value after the 32 // GPRs. -#define CANCEL_REG_IP 32 +#define MC_PC gregs[32] #define CANARY canary_at_end |