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| author | Mike Frysinger <vapier@gentoo.org> | 2015-06-15 19:22:38 +0545 |
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2015-06-17 13:19:51 -0400 |
| commit | 7d5c6c43ca8a5dd5491f4a58e977ec5501386ee3 (patch) | |
| tree | bc347f539bd5eb379bd6b8ce9adef4cdff2a9248 /sim/lm32 | |
| parent | 61a0c964e611eaf72489c3049ba206b2f91ea4a9 (diff) | |
| download | gdb-7d5c6c43ca8a5dd5491f4a58e977ec5501386ee3.zip gdb-7d5c6c43ca8a5dd5491f4a58e977ec5501386ee3.tar.gz gdb-7d5c6c43ca8a5dd5491f4a58e977ec5501386ee3.tar.bz2 | |
sim: syscall: add common sim_syscall helpers
Many ports have the same sim syscall logic, so add some helpers to handle
all the common details. The arches still have to deal with the unpacking
and packing of the syscall arguments, but the rest of the sim<->callback
glue is now shared.
Diffstat (limited to 'sim/lm32')
| -rw-r--r-- | sim/lm32/ChangeLog | 5 | ||||
| -rw-r--r-- | sim/lm32/traps.c | 28 |
2 files changed, 15 insertions, 18 deletions
diff --git a/sim/lm32/ChangeLog b/sim/lm32/ChangeLog index 4cee5da..7442ba3 100644 --- a/sim/lm32/ChangeLog +++ b/sim/lm32/ChangeLog @@ -1,5 +1,10 @@ 2015-06-17 Mike Frysinger <vapier@gentoo.org> + * traps.c (lm32bf_scall_insn): Replace call to cb_syscall with + sim_syscall_multi. + +2015-06-17 Mike Frysinger <vapier@gentoo.org> + * traps.c: Include sim-syscall.h. (syscall_read_mem, syscall_write_mem): Delete. (lm32bf_scall_insn): Change syscall_read_mem/syscall_write_mem diff --git a/sim/lm32/traps.c b/sim/lm32/traps.c index 810ddf7..9de0910 100644 --- a/sim/lm32/traps.c +++ b/sim/lm32/traps.c @@ -132,26 +132,18 @@ lm32bf_scall_insn (SIM_CPU * current_cpu, IADDR pc) || (GET_H_GR (8) == TARGET_SYS_exit)) { /* Delegate system call to host O/S. */ - CB_SYSCALL s; - CB_SYSCALL_INIT (&s); - s.p1 = (PTR) sd; - s.p2 = (PTR) current_cpu; - s.read_mem = sim_syscall_read_mem; - s.write_mem = sim_syscall_write_mem; - /* Extract parameters. */ - s.func = GET_H_GR (8); - s.arg1 = GET_H_GR (1); - s.arg2 = GET_H_GR (2); - s.arg3 = GET_H_GR (3); - /* Halt the simulator if the requested system call is _exit. */ - if (s.func == TARGET_SYS_exit) - sim_engine_halt (sd, current_cpu, NULL, pc, sim_exited, s.arg1); + long result, result2; + int errcode; + /* Perform the system call. */ - cb_syscall (cb, &s); + sim_syscall_multi (current_cpu, GET_H_GR (8), GET_H_GR (1), GET_H_GR (2), + GET_H_GR (3), GET_H_GR (4), &result, &result2, + &errcode); /* Store the return value in the CPU's registers. */ - SET_H_GR (1, s.result); - SET_H_GR (2, s.result2); - SET_H_GR (3, s.errcode); + SET_H_GR (1, result); + SET_H_GR (2, result2); + SET_H_GR (3, errcode); + /* Skip over scall instruction. */ return pc + 4; } |