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(almost) complete ppc64 support #1375

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f990e31
chore: formatting pass
localcc Jun 22, 2025
6008a37
feat: (almost) complete ppc64 support
localcc Jun 22, 2025
b274ce5
fix: implement pltRelocateSelf and crt1.s
localcc Jun 24, 2025
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3 changes: 3 additions & 0 deletions abis/linux/auxv.h
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,9 @@
#define AT_FPUCW 18
#define AT_SECURE 23
#define AT_RANDOM 25
#define AT_HWCAP2 26
#define AT_HWCAP3 29
#define AT_HWCAP4 30
#define AT_EXECFN 31
#define AT_SYSINFO_EHDR 33

Expand Down
7 changes: 4 additions & 3 deletions abis/linux/ipc.h
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Original file line number Diff line number Diff line change
@@ -1,9 +1,9 @@
#ifndef _ABIBITS_IPC_H
#define _ABIBITS_IPC_H

#include <abi-bits/uid_t.h>
#include <abi-bits/gid_t.h>
#include <abi-bits/mode_t.h>
#include <abi-bits/uid_t.h>

#ifdef __cplusplus
extern "C" {
Expand All @@ -18,11 +18,12 @@ extern "C" {
#define IPC_STAT 2
#define IPC_INFO 3

#define IPC_PRIVATE ((key_t) 0)
#define IPC_PRIVATE ((key_t)0)

#if defined(__aarch64__) || defined(__i386__) || defined(__m68k__)
#define IPC_64 0x100
#elif defined(__x86_64__) || (defined(__riscv) && __riscv_xlen == 64) || defined(__loongarch64)
#elif defined(__x86_64__) || (defined(__riscv) && __riscv_xlen == 64) || defined(__loongarch64) \
|| defined(__powerpc64__)
#define IPC_64 0
#else
#error "Unsupported arch!"
Expand Down
19 changes: 16 additions & 3 deletions abis/linux/shm.h
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Original file line number Diff line number Diff line change
Expand Up @@ -5,11 +5,11 @@
extern "C" {
#endif

#include <bits/ansi/time_t.h>
#include <abi-bits/pid_t.h>
#include <bits/ansi/time_t.h>

#include <unistd.h>
#include <sys/ipc.h>
#include <unistd.h>

#define SHM_R 0400
#define SHM_W 0200
Expand Down Expand Up @@ -64,7 +64,8 @@ struct shmid_ds {
time_t shm_dtime;
time_t shm_ctime;
};
#elif defined(__x86_64__) || defined(__aarch64__) || (defined(__riscv) && __riscv_xlen == 64) || defined(__loongarch64)
#elif defined(__x86_64__) || defined(__aarch64__) || (defined(__riscv) && __riscv_xlen == 64) \
|| defined(__loongarch64)
struct shmid_ds {
struct ipc_perm shm_perm;
size_t shm_segsz;
Expand All @@ -76,6 +77,18 @@ struct shmid_ds {
unsigned long shm_nattch;
unsigned long __unused[2];
};
#elif defined(__powerpc64__)
struct shmid_ds {
struct ipc_perm shm_perm;
time_t shm_atime;
time_t shm_dtime;
time_t shm_ctime;
size_t shm_segsz;
pid_t shm_cpid;
pid_t shm_lpid;
unsigned long shm_nattch;
unsigned long __unused[2];
};
Comment on lines +81 to +91
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I'm not sure this is correct - this seems to match the definition of shmid64_ds for ppc64, which is a different struct. I think the correct definition is the one above.

#else
#error "Missing architecture specific code."
#endif
Expand Down
204 changes: 121 additions & 83 deletions abis/linux/signal.h
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Original file line number Diff line number Diff line change
@@ -1,12 +1,13 @@
#ifndef _ABIBITS_SIGNAL_H
#define _ABIBITS_SIGNAL_H

#include <stdint.h>
#include <time.h>
#include <abi-bits/sigevent.h>
#include <abi-bits/pid_t.h>
#include <abi-bits/sigevent.h>
#include <abi-bits/uid_t.h>
#include <asm/types.h>
#include <bits/size_t.h>
#include <stdint.h>
#include <time.h>

#define POLL_IN 1
#define POLL_OUT 2
Expand All @@ -20,7 +21,7 @@
typedef struct {
int si_signo, si_errno, si_code;
union {
char __pad[128 - 2*sizeof(int) - sizeof(long)];
char __pad[128 - 2 * sizeof(int) - sizeof(long)];
struct {
union {
struct {
Expand Down Expand Up @@ -62,26 +63,26 @@ typedef struct {
} __sigsys;
} __si_fields;
} siginfo_t;
#define si_pid __si_fields.__si_common.__first.__piduid.si_pid
#define si_uid __si_fields.__si_common.__first.__piduid.si_uid
#define si_status __si_fields.__si_common.__second.__sigchld.si_status
#define si_utime __si_fields.__si_common.__second.__sigchld.si_utime
#define si_stime __si_fields.__si_common.__second.__sigchld.si_stime
#define si_value __si_fields.__si_common.__second.si_value
#define si_addr __si_fields.__sigfault.si_addr
#define si_pid __si_fields.__si_common.__first.__piduid.si_pid
#define si_uid __si_fields.__si_common.__first.__piduid.si_uid
#define si_status __si_fields.__si_common.__second.__sigchld.si_status
#define si_utime __si_fields.__si_common.__second.__sigchld.si_utime
#define si_stime __si_fields.__si_common.__second.__sigchld.si_stime
#define si_value __si_fields.__si_common.__second.si_value
#define si_addr __si_fields.__sigfault.si_addr
#define si_addr_lsb __si_fields.__sigfault.si_addr_lsb
#define si_lower __si_fields.__sigfault.__first.__addr_bnd.si_lower
#define si_upper __si_fields.__sigfault.__first.__addr_bnd.si_upper
#define si_pkey __si_fields.__sigfault.__first.si_pkey
#define si_band __si_fields.__sigpoll.si_band
#define si_fd __si_fields.__sigpoll.si_fd
#define si_lower __si_fields.__sigfault.__first.__addr_bnd.si_lower
#define si_upper __si_fields.__sigfault.__first.__addr_bnd.si_upper
#define si_pkey __si_fields.__sigfault.__first.si_pkey
#define si_band __si_fields.__sigpoll.si_band
#define si_fd __si_fields.__sigpoll.si_fd
#define si_timerid __si_fields.__si_common.__first.__timer.si_timerid
#define si_overrun __si_fields.__si_common.__first.__timer.si_overrun
#define si_ptr si_value.sival_ptr
#define si_int si_value.sival_int
#define si_ptr si_value.sival_ptr
#define si_int si_value.sival_int
#define si_call_addr __si_fields.__sigsys.si_call_addr
#define si_syscall __si_fields.__sigsys.si_syscall
#define si_arch __si_fields.__sigsys.si_arch
#define si_arch __si_fields.__sigsys.si_arch

/* Required for sys_sigaction sysdep. */
#define SA_NOCLDSTOP 1
Expand All @@ -98,7 +99,7 @@ extern "C" {
#endif

/* Argument for signal() */
typedef void (*__sighandler) (int);
typedef void (*__sighandler)(int);

#define SIG_ERR ((__sighandler)(void *)(-1))
#define SIG_DFL ((__sighandler)(void *)(0))
Expand All @@ -125,35 +126,41 @@ typedef struct {
#define SIG_UNBLOCK 1
#define SIG_SETMASK 2

#define SIGHUP 1
#define SIGQUIT 3
#define SIGTRAP 5
#define SIGIOT SIGABRT
#define SIGBUS 7
#define SIGKILL 9
#define SIGUSR1 10
#define SIGUSR2 12
#define SIGPIPE 13
#define SIGALRM 14
#define SIGHUP 1
#define SIGQUIT 3
#define SIGTRAP 5
#define SIGIOT SIGABRT
#define SIGBUS 7
#define SIGKILL 9
#define SIGUSR1 10
#define SIGUSR2 12
#define SIGPIPE 13
#define SIGALRM 14
#define SIGSTKFLT 16
#define SIGCHLD 17
#define SIGCONT 18
#define SIGSTOP 19
#define SIGTSTP 20
#define SIGTTIN 21
#define SIGTTOU 22
#define SIGURG 23
#define SIGXCPU 24
#define SIGXFSZ 25
#define SIGCHLD 17
#define SIGCONT 18
#define SIGSTOP 19
#define SIGTSTP 20
#define SIGTTIN 21
#define SIGTTOU 22
#define SIGURG 23
#define SIGXCPU 24
#define SIGXFSZ 25
#define SIGVTALRM 26
#define SIGWINCH 28
#define SIGPOLL 29
#define SIGSYS 31
#define SIGWINCH 28
#define SIGPOLL 29
#define SIGSYS 31
#define SIGUNUSED SIGSYS
#define SIGCANCEL 32

#if defined(__powerpc64__)
#define MINSIGSTKSZ 8192
#define SIGSTKSZ 32768
#else
#define MINSIGSTKSZ 2048
#define SIGSTKSZ 8192
#endif

#define SS_ONSTACK 1
#define SS_DISABLE 2

Expand Down Expand Up @@ -359,17 +366,17 @@ typedef struct __ucontext {
#define NGREG 32

enum {
REG_PC = 0,
REG_PC = 0,
#define REG_PC REG_PC
REG_RA = 1,
REG_RA = 1,
#define REG_RA REG_RA
REG_SP = 2,
REG_SP = 2,
#define REG_SP REG_SP
REG_TP = 4,
REG_TP = 4,
#define REG_TP REG_TP
REG_S0 = 8,
REG_S0 = 8,
#define REG_S0 REG_S0
REG_A0 = 10
REG_A0 = 10
#define REG_A0 REG_A0
};

Expand Down Expand Up @@ -404,7 +411,7 @@ typedef struct sigcontext {

typedef struct __ucontext {
unsigned long uc_flags;
struct ucontext *uc_link;
struct ucontext *uc_link;
stack_t uc_stack;
sigset_t uc_sigmask;
#pragma GCC diagnostic push
Expand All @@ -414,7 +421,7 @@ typedef struct __ucontext {
mcontext_t uc_mcontext;
} ucontext_t;

#elif defined (__aarch64__)
#elif defined(__aarch64__)

#define NGREG 34

Expand Down Expand Up @@ -456,38 +463,29 @@ struct sve_context {
uint16_t vl;
uint16_t __reserved[3];
};
#define SVE_VQ_BYTES 16
#define SVE_VQ_MIN 1
#define SVE_VQ_MAX 512
#define SVE_VL_MIN (SVE_VQ_MIN * SVE_VQ_BYTES)
#define SVE_VL_MAX (SVE_VQ_MAX * SVE_VQ_BYTES)
#define SVE_NUM_ZREGS 32
#define SVE_NUM_PREGS 16
#define sve_vl_valid(vl) \
((vl) % SVE_VQ_BYTES == 0 && (vl) >= SVE_VL_MIN && (vl) <= SVE_VL_MAX)
#define sve_vq_from_vl(vl) ((vl) / SVE_VQ_BYTES)
#define sve_vl_from_vq(vq) ((vq) * SVE_VQ_BYTES)
#define SVE_SIG_ZREG_SIZE(vq) ((unsigned)(vq) * SVE_VQ_BYTES)
#define SVE_SIG_PREG_SIZE(vq) ((unsigned)(vq) * (SVE_VQ_BYTES / 8))
#define SVE_SIG_FFR_SIZE(vq) SVE_SIG_PREG_SIZE(vq)
#define SVE_SIG_REGS_OFFSET \
((sizeof(struct sve_context) + (SVE_VQ_BYTES - 1)) \
/ SVE_VQ_BYTES * SVE_VQ_BYTES)
#define SVE_SIG_ZREGS_OFFSET SVE_SIG_REGS_OFFSET
#define SVE_SIG_ZREG_OFFSET(vq, n) \
(SVE_SIG_ZREGS_OFFSET + SVE_SIG_ZREG_SIZE(vq) * (n))
#define SVE_SIG_ZREGS_SIZE(vq) \
(SVE_SIG_ZREG_OFFSET(vq, SVE_NUM_ZREGS) - SVE_SIG_ZREGS_OFFSET)
#define SVE_SIG_PREGS_OFFSET(vq) \
(SVE_SIG_ZREGS_OFFSET + SVE_SIG_ZREGS_SIZE(vq))
#define SVE_SIG_PREG_OFFSET(vq, n) \
(SVE_SIG_PREGS_OFFSET(vq) + SVE_SIG_PREG_SIZE(vq) * (n))
#define SVE_SIG_PREGS_SIZE(vq) \
(SVE_SIG_PREG_OFFSET(vq, SVE_NUM_PREGS) - SVE_SIG_PREGS_OFFSET(vq))
#define SVE_SIG_FFR_OFFSET(vq) \
(SVE_SIG_PREGS_OFFSET(vq) + SVE_SIG_PREGS_SIZE(vq))
#define SVE_SIG_REGS_SIZE(vq) \
(SVE_SIG_FFR_OFFSET(vq) + SVE_SIG_FFR_SIZE(vq) - SVE_SIG_REGS_OFFSET)
#define SVE_VQ_BYTES 16
#define SVE_VQ_MIN 1
#define SVE_VQ_MAX 512
#define SVE_VL_MIN (SVE_VQ_MIN * SVE_VQ_BYTES)
#define SVE_VL_MAX (SVE_VQ_MAX * SVE_VQ_BYTES)
#define SVE_NUM_ZREGS 32
#define SVE_NUM_PREGS 16
#define sve_vl_valid(vl) ((vl) % SVE_VQ_BYTES == 0 && (vl) >= SVE_VL_MIN && (vl) <= SVE_VL_MAX)
#define sve_vq_from_vl(vl) ((vl) / SVE_VQ_BYTES)
#define sve_vl_from_vq(vq) ((vq) * SVE_VQ_BYTES)
#define SVE_SIG_ZREG_SIZE(vq) ((unsigned)(vq) * SVE_VQ_BYTES)
#define SVE_SIG_PREG_SIZE(vq) ((unsigned)(vq) * (SVE_VQ_BYTES / 8))
#define SVE_SIG_FFR_SIZE(vq) SVE_SIG_PREG_SIZE(vq)
#define SVE_SIG_REGS_OFFSET \
((sizeof(struct sve_context) + (SVE_VQ_BYTES - 1)) / SVE_VQ_BYTES * SVE_VQ_BYTES)
#define SVE_SIG_ZREGS_OFFSET SVE_SIG_REGS_OFFSET
#define SVE_SIG_ZREG_OFFSET(vq, n) (SVE_SIG_ZREGS_OFFSET + SVE_SIG_ZREG_SIZE(vq) * (n))
#define SVE_SIG_ZREGS_SIZE(vq) (SVE_SIG_ZREG_OFFSET(vq, SVE_NUM_ZREGS) - SVE_SIG_ZREGS_OFFSET)
#define SVE_SIG_PREGS_OFFSET(vq) (SVE_SIG_ZREGS_OFFSET + SVE_SIG_ZREGS_SIZE(vq))
#define SVE_SIG_PREG_OFFSET(vq, n) (SVE_SIG_PREGS_OFFSET(vq) + SVE_SIG_PREG_SIZE(vq) * (n))
#define SVE_SIG_PREGS_SIZE(vq) (SVE_SIG_PREG_OFFSET(vq, SVE_NUM_PREGS) - SVE_SIG_PREGS_OFFSET(vq))
#define SVE_SIG_FFR_OFFSET(vq) (SVE_SIG_PREGS_OFFSET(vq) + SVE_SIG_PREGS_SIZE(vq))
#define SVE_SIG_REGS_SIZE(vq) (SVE_SIG_FFR_OFFSET(vq) + SVE_SIG_FFR_SIZE(vq) - SVE_SIG_REGS_OFFSET)
#define SVE_SIG_CONTEXT_SIZE(vq) (SVE_SIG_REGS_OFFSET + SVE_SIG_REGS_SIZE(vq))

typedef struct __ucontext {
Expand All @@ -498,7 +496,7 @@ typedef struct __ucontext {
mcontext_t uc_mcontext;
} ucontext_t;

#elif defined (__m68k__)
#elif defined(__m68k__)

/* taken from musl */

Expand Down Expand Up @@ -630,6 +628,46 @@ typedef struct __ucontext {
mcontext_t uc_mcontext;
} ucontext_t;

#elif defined(__powerpc64__)

struct sigaltstack {
void *ss_sp;
int ss_flags;
size_t ss_size;
};

typedef unsigned long greg_t, gregset_t[48];
typedef double fpreg_t, fpregset_t[33];

typedef __vector128 vrreg_t;
typedef vrreg_t vrregset_t[34];

struct pt_regs {
greg_t gpr[32];
greg_t pc;
};

struct sigcontext {
unsigned long _unused[4];
int signal;
int _pad0;
unsigned long handler;
unsigned long oldmask;
struct pt_regs *regs;
gregset_t gp_regs;
fpregset_t fp_regs;
vrreg_t *v_regs;
long vmx_reserve[101];
};

typedef struct __ucontext {
unsigned long uc_flags;
struct ucontext *uc_link;
stack_t uc_stack;
sigset_t uc_sigmask;
struct sigcontext uc_mcontext;
} ucontext_t;

#else
#error "Missing architecture specific code."
#endif
Expand Down
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