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| author | jkim <jkim@FreeBSD.org> | 2009-12-15 22:44:28 +0000 |
|---|---|---|
| committer | jkim <jkim@FreeBSD.org> | 2009-12-15 22:44:28 +0000 |
| commit | ddc390f24bcd6429544e60de4083375c77a39386 (patch) | |
| tree | bd7053a1c4635505603e1e025803da8282d143b4 /sys/compat | |
| parent | 0b02c03e54e6cefe1efe02b0dd9d885768f4d901 (diff) | |
| download | FreeBSD-src-ddc390f24bcd6429544e60de4083375c77a39386.zip FreeBSD-src-ddc390f24bcd6429544e60de4083375c77a39386.tar.gz | |
Add two new debugging tunables for x86bios instead of abusing bootverbose,
i.e., debug.x86bios.call and debug.x86bios.int.
Diffstat (limited to 'sys/compat')
| -rw-r--r-- | sys/compat/x86bios/x86bios.c | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/sys/compat/x86bios/x86bios.c b/sys/compat/x86bios/x86bios.c index be57887..34da07c 100644 --- a/sys/compat/x86bios/x86bios.c +++ b/sys/compat/x86bios/x86bios.c @@ -38,6 +38,7 @@ __FBSDID("$FreeBSD$"); #include <sys/module.h> #include <sys/mutex.h> #include <sys/proc.h> +#include <sys/sysctl.h> #include <contrib/x86emu/x86emu.h> #include <contrib/x86emu/x86emu_regs.h> @@ -80,6 +81,16 @@ static vm_offset_t *x86bios_map; static vm_paddr_t x86bios_seg_phys; +SYSCTL_NODE(_debug, OID_AUTO, x86bios, CTLFLAG_RD, NULL, "x86bios debugging"); +static int x86bios_trace_call; +TUNABLE_INT("debug.x86bios.call", &x86bios_trace_call); +SYSCTL_INT(_debug_x86bios, OID_AUTO, call, CTLFLAG_RW, &x86bios_trace_call, 0, + "Trace far function calls"); +static int x86bios_trace_int; +TUNABLE_INT("debug.x86bios.int", &x86bios_trace_int); +SYSCTL_INT(_debug_x86bios, OID_AUTO, int, CTLFLAG_RW, &x86bios_trace_int, 0, + "Trace software interrupt handlers"); + static void * x86bios_get_pages(uint32_t offset, size_t size) { @@ -312,7 +323,7 @@ x86bios_call(struct x86regs *regs, uint16_t seg, uint16_t off) if (x86bios_map == NULL) return; - if (bootverbose) + if (x86bios_trace_call) printf("Calling 0x%05x (ax=0x%04x bx=0x%04x " "cx=0x%04x dx=0x%04x es=0x%04x di=0x%04x)\n", (seg << 4) + off, regs->R_AX, regs->R_BX, regs->R_CX, @@ -324,7 +335,7 @@ x86bios_call(struct x86regs *regs, uint16_t seg, uint16_t off) memcpy(regs, &x86bios_emu.x86, sizeof(*regs)); mtx_unlock_spin(&x86bios_lock); - if (bootverbose) + if (x86bios_trace_call) printf("Exiting 0x%05x (ax=0x%04x bx=0x%04x " "cx=0x%04x dx=0x%04x es=0x%04x di=0x%04x)\n", (seg << 4) + off, regs->R_AX, regs->R_BX, regs->R_CX, @@ -351,7 +362,7 @@ x86bios_intr(struct x86regs *regs, int intno) if (x86bios_map == NULL) return; - if (bootverbose) + if (x86bios_trace_int) printf("Calling int 0x%x (ax=0x%04x bx=0x%04x " "cx=0x%04x dx=0x%04x es=0x%04x di=0x%04x)\n", intno, regs->R_AX, regs->R_BX, regs->R_CX, @@ -363,7 +374,7 @@ x86bios_intr(struct x86regs *regs, int intno) memcpy(regs, &x86bios_emu.x86, sizeof(*regs)); mtx_unlock_spin(&x86bios_lock); - if (bootverbose) + if (x86bios_trace_int) printf("Exiting int 0x%x (ax=0x%04x bx=0x%04x " "cx=0x%04x dx=0x%04x es=0x%04x di=0x%04x)\n", intno, regs->R_AX, regs->R_BX, regs->R_CX, |
