git: 9016ec056ae3 - main - linux(4): Deduplicate bsd_to_linux_trapcode()
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Date: Mon, 23 May 2022 10:20:13 UTC
The branch main has been updated by dchagin:
URL: https://cgit.FreeBSD.org/src/commit/?id=9016ec056ae3896522798ead39bb2f3ff4f68809
commit 9016ec056ae3896522798ead39bb2f3ff4f68809
Author: Dmitry Chagin <dchagin@FreeBSD.org>
AuthorDate: 2022-05-23 10:16:58 +0000
Commit: Dmitry Chagin <dchagin@FreeBSD.org>
CommitDate: 2022-05-23 10:16:58 +0000
linux(4): Deduplicate bsd_to_linux_trapcode()
As bsd_to_linux_trapcode() is common for x86 Linuxulators,
move it under x86/linux.
MFC after: 2 weeks
---
sys/amd64/linux/linux_sysvec.c | 39 ----------------------------------
sys/amd64/linux32/linux32_sysvec.c | 39 ----------------------------------
sys/i386/linux/linux_sysvec.c | 39 ----------------------------------
sys/x86/linux/linux_x86.c | 43 ++++++++++++++++++++++++++++++++++++++
sys/x86/linux/linux_x86.h | 1 +
5 files changed, 44 insertions(+), 117 deletions(-)
diff --git a/sys/amd64/linux/linux_sysvec.c b/sys/amd64/linux/linux_sysvec.c
index 4592c2c26e12..acfc4d6831f3 100644
--- a/sys/amd64/linux/linux_sysvec.c
+++ b/sys/amd64/linux/linux_sysvec.c
@@ -131,45 +131,6 @@ static int linux_on_exec_vmspace(struct proc *p,
static void linux_set_fork_retval(struct thread *td);
static int linux_vsyscall(struct thread *td);
-#define LINUX_T_UNKNOWN 255
-static int _bsd_to_linux_trapcode[] = {
- LINUX_T_UNKNOWN, /* 0 */
- 6, /* 1 T_PRIVINFLT */
- LINUX_T_UNKNOWN, /* 2 */
- 3, /* 3 T_BPTFLT */
- LINUX_T_UNKNOWN, /* 4 */
- LINUX_T_UNKNOWN, /* 5 */
- 16, /* 6 T_ARITHTRAP */
- 254, /* 7 T_ASTFLT */
- LINUX_T_UNKNOWN, /* 8 */
- 13, /* 9 T_PROTFLT */
- 1, /* 10 T_TRCTRAP */
- LINUX_T_UNKNOWN, /* 11 */
- 14, /* 12 T_PAGEFLT */
- LINUX_T_UNKNOWN, /* 13 */
- 17, /* 14 T_ALIGNFLT */
- LINUX_T_UNKNOWN, /* 15 */
- LINUX_T_UNKNOWN, /* 16 */
- LINUX_T_UNKNOWN, /* 17 */
- 0, /* 18 T_DIVIDE */
- 2, /* 19 T_NMI */
- 4, /* 20 T_OFLOW */
- 5, /* 21 T_BOUND */
- 7, /* 22 T_DNA */
- 8, /* 23 T_DOUBLEFLT */
- 9, /* 24 T_FPOPFLT */
- 10, /* 25 T_TSSFLT */
- 11, /* 26 T_SEGNPFLT */
- 12, /* 27 T_STKFLT */
- 18, /* 28 T_MCHK */
- 19, /* 29 T_XMMFLT */
- 15 /* 30 T_RESERVED */
-};
-#define bsd_to_linux_trapcode(code) \
- ((code)<nitems(_bsd_to_linux_trapcode)? \
- _bsd_to_linux_trapcode[(code)]: \
- LINUX_T_UNKNOWN)
-
LINUX_VDSO_SYM_INTPTR(linux_rt_sigcode);
LINUX_VDSO_SYM_CHAR(linux_platform);
LINUX_VDSO_SYM_INTPTR(kern_timekeep_base);
diff --git a/sys/amd64/linux32/linux32_sysvec.c b/sys/amd64/linux32/linux32_sysvec.c
index ff6b1f882bc9..ff16822a352b 100644
--- a/sys/amd64/linux32/linux32_sysvec.c
+++ b/sys/amd64/linux32/linux32_sysvec.c
@@ -134,45 +134,6 @@ static void linux_vdso_reloc(char *mapping, Elf_Addr offset);
static void linux32_set_fork_retval(struct thread *td);
static void linux32_set_syscall_retval(struct thread *td, int error);
-#define LINUX_T_UNKNOWN 255
-static int _bsd_to_linux_trapcode[] = {
- LINUX_T_UNKNOWN, /* 0 */
- 6, /* 1 T_PRIVINFLT */
- LINUX_T_UNKNOWN, /* 2 */
- 3, /* 3 T_BPTFLT */
- LINUX_T_UNKNOWN, /* 4 */
- LINUX_T_UNKNOWN, /* 5 */
- 16, /* 6 T_ARITHTRAP */
- 254, /* 7 T_ASTFLT */
- LINUX_T_UNKNOWN, /* 8 */
- 13, /* 9 T_PROTFLT */
- 1, /* 10 T_TRCTRAP */
- LINUX_T_UNKNOWN, /* 11 */
- 14, /* 12 T_PAGEFLT */
- LINUX_T_UNKNOWN, /* 13 */
- 17, /* 14 T_ALIGNFLT */
- LINUX_T_UNKNOWN, /* 15 */
- LINUX_T_UNKNOWN, /* 16 */
- LINUX_T_UNKNOWN, /* 17 */
- 0, /* 18 T_DIVIDE */
- 2, /* 19 T_NMI */
- 4, /* 20 T_OFLOW */
- 5, /* 21 T_BOUND */
- 7, /* 22 T_DNA */
- 8, /* 23 T_DOUBLEFLT */
- 9, /* 24 T_FPOPFLT */
- 10, /* 25 T_TSSFLT */
- 11, /* 26 T_SEGNPFLT */
- 12, /* 27 T_STKFLT */
- 18, /* 28 T_MCHK */
- 19, /* 29 T_XMMFLT */
- 15 /* 30 T_RESERVED */
-};
-#define bsd_to_linux_trapcode(code) \
- ((code)<nitems(_bsd_to_linux_trapcode)? \
- _bsd_to_linux_trapcode[(code)]: \
- LINUX_T_UNKNOWN)
-
struct linux32_ps_strings {
u_int32_t ps_argvstr; /* first of 0 or more argument strings */
u_int ps_nargvstr; /* the number of argument strings */
diff --git a/sys/i386/linux/linux_sysvec.c b/sys/i386/linux/linux_sysvec.c
index f4c14abe6996..12f02ca22cb4 100644
--- a/sys/i386/linux/linux_sysvec.c
+++ b/sys/i386/linux/linux_sysvec.c
@@ -117,45 +117,6 @@ static void linux_vdso_install(const void *param);
static void linux_vdso_deinstall(const void *param);
static void linux_vdso_reloc(char *mapping, Elf_Addr offset);
-#define LINUX_T_UNKNOWN 255
-static int _bsd_to_linux_trapcode[] = {
- LINUX_T_UNKNOWN, /* 0 */
- 6, /* 1 T_PRIVINFLT */
- LINUX_T_UNKNOWN, /* 2 */
- 3, /* 3 T_BPTFLT */
- LINUX_T_UNKNOWN, /* 4 */
- LINUX_T_UNKNOWN, /* 5 */
- 16, /* 6 T_ARITHTRAP */
- 254, /* 7 T_ASTFLT */
- LINUX_T_UNKNOWN, /* 8 */
- 13, /* 9 T_PROTFLT */
- 1, /* 10 T_TRCTRAP */
- LINUX_T_UNKNOWN, /* 11 */
- 14, /* 12 T_PAGEFLT */
- LINUX_T_UNKNOWN, /* 13 */
- 17, /* 14 T_ALIGNFLT */
- LINUX_T_UNKNOWN, /* 15 */
- LINUX_T_UNKNOWN, /* 16 */
- LINUX_T_UNKNOWN, /* 17 */
- 0, /* 18 T_DIVIDE */
- 2, /* 19 T_NMI */
- 4, /* 20 T_OFLOW */
- 5, /* 21 T_BOUND */
- 7, /* 22 T_DNA */
- 8, /* 23 T_DOUBLEFLT */
- 9, /* 24 T_FPOPFLT */
- 10, /* 25 T_TSSFLT */
- 11, /* 26 T_SEGNPFLT */
- 12, /* 27 T_STKFLT */
- 18, /* 28 T_MCHK */
- 19, /* 29 T_XMMFLT */
- 15 /* 30 T_RESERVED */
-};
-#define bsd_to_linux_trapcode(code) \
- ((code)<nitems(_bsd_to_linux_trapcode)? \
- _bsd_to_linux_trapcode[(code)]: \
- LINUX_T_UNKNOWN)
-
LINUX_VDSO_SYM_CHAR(linux_platform);
LINUX_VDSO_SYM_INTPTR(__kernel_vsyscall);
LINUX_VDSO_SYM_INTPTR(linux_vdso_sigcode);
diff --git a/sys/x86/linux/linux_x86.c b/sys/x86/linux/linux_x86.c
index 160a721b1418..2f4658106621 100644
--- a/sys/x86/linux/linux_x86.c
+++ b/sys/x86/linux/linux_x86.c
@@ -35,6 +35,41 @@ __FBSDID("$FreeBSD$");
#include <x86/linux/linux_x86.h>
+#define LINUX_T_UNKNOWN 255
+static int _bsd_to_linux_trapcode[] = {
+ LINUX_T_UNKNOWN, /* 0 */
+ 6, /* 1 T_PRIVINFLT */
+ LINUX_T_UNKNOWN, /* 2 */
+ 3, /* 3 T_BPTFLT */
+ LINUX_T_UNKNOWN, /* 4 */
+ LINUX_T_UNKNOWN, /* 5 */
+ 16, /* 6 T_ARITHTRAP */
+ 254, /* 7 T_ASTFLT */
+ LINUX_T_UNKNOWN, /* 8 */
+ 13, /* 9 T_PROTFLT */
+ 1, /* 10 T_TRCTRAP */
+ LINUX_T_UNKNOWN, /* 11 */
+ 14, /* 12 T_PAGEFLT */
+ LINUX_T_UNKNOWN, /* 13 */
+ 17, /* 14 T_ALIGNFLT */
+ LINUX_T_UNKNOWN, /* 15 */
+ LINUX_T_UNKNOWN, /* 16 */
+ LINUX_T_UNKNOWN, /* 17 */
+ 0, /* 18 T_DIVIDE */
+ 2, /* 19 T_NMI */
+ 4, /* 20 T_OFLOW */
+ 5, /* 21 T_BOUND */
+ 7, /* 22 T_DNA */
+ 8, /* 23 T_DOUBLEFLT */
+ 9, /* 24 T_FPOPFLT */
+ 10, /* 25 T_TSSFLT */
+ 11, /* 26 T_SEGNPFLT */
+ 12, /* 27 T_STKFLT */
+ 18, /* 28 T_MCHK */
+ 19, /* 29 T_XMMFLT */
+ 15 /* 30 T_RESERVED */
+};
+
/*
* If FreeBSD & Linux have a difference of opinion about what a trap
* means, deal with it here.
@@ -54,3 +89,11 @@ linux_translate_traps(int signal, int trap_code)
return (signal);
}
}
+
+int
+bsd_to_linux_trapcode(int code)
+{
+
+ return (code < nitems(_bsd_to_linux_trapcode) ?
+ _bsd_to_linux_trapcode[code] : LINUX_T_UNKNOWN);
+}
\ No newline at end of file
diff --git a/sys/x86/linux/linux_x86.h b/sys/x86/linux/linux_x86.h
index a7eb871113ee..ce083bb1c3f5 100644
--- a/sys/x86/linux/linux_x86.h
+++ b/sys/x86/linux/linux_x86.h
@@ -36,5 +36,6 @@ int linux_vdso_tsc_selector_idx(void);
int linux_vdso_cpu_selector_idx(void);
int linux_translate_traps(int, int);
+int bsd_to_linux_trapcode(int);
#endif /* _X86_INCLUDE_LINUX_LINUX_X86_H_ */