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| author | Ilya Leoshkevich | 2022-09-06 02:08:37 +0200 |
|---|---|---|
| committer | Laurent Vivier | 2022-09-27 09:30:44 +0200 |
| commit | 375ce49be285c5ff73674674350cc99807dfac83 (patch) | |
| tree | 69a36e9e1d579e59625f29106c34413f560f8613 | |
| parent | linux-user: Fix madvise(MADV_DONTNEED) on alpha (diff) | |
| download | qemu-375ce49be285c5ff73674674350cc99807dfac83.tar.gz qemu-375ce49be285c5ff73674674350cc99807dfac83.tar.xz qemu-375ce49be285c5ff73674674350cc99807dfac83.zip | |
linux-user: Implement stracing madvise()
The default implementation has several problems: the first argument is
not displayed as a pointer, making it harder to grep; the third
argument is not symbolized; and there are several extra unused
arguments.
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220906000839.1672934-4-iii@linux.ibm.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
| -rw-r--r-- | linux-user/strace.c | 41 | ||||
| -rw-r--r-- | linux-user/strace.list | 2 |
2 files changed, 42 insertions, 1 deletions
diff --git a/linux-user/strace.c b/linux-user/strace.c index b6b9abaea4..2deb84a2c1 100644 --- a/linux-user/strace.c +++ b/linux-user/strace.c @@ -18,6 +18,7 @@ #include "user-internals.h" #include "strace.h" #include "signal-common.h" +#include "target_mman.h" struct syscallname { int nr; @@ -3019,6 +3020,46 @@ print_stat(CPUArchState *cpu_env, const struct syscallname *name, #define print_lstat64 print_stat #endif +#if defined(TARGET_NR_madvise) +static struct enums madvise_advice[] = { + ENUM_TARGET(MADV_NORMAL), + ENUM_TARGET(MADV_RANDOM), + ENUM_TARGET(MADV_SEQUENTIAL), + ENUM_TARGET(MADV_WILLNEED), + ENUM_TARGET(MADV_DONTNEED), + ENUM_TARGET(MADV_FREE), + ENUM_TARGET(MADV_REMOVE), + ENUM_TARGET(MADV_DONTFORK), + ENUM_TARGET(MADV_DOFORK), + ENUM_TARGET(MADV_MERGEABLE), + ENUM_TARGET(MADV_UNMERGEABLE), + ENUM_TARGET(MADV_HUGEPAGE), + ENUM_TARGET(MADV_NOHUGEPAGE), + ENUM_TARGET(MADV_DONTDUMP), + ENUM_TARGET(MADV_DODUMP), + ENUM_TARGET(MADV_WIPEONFORK), + ENUM_TARGET(MADV_KEEPONFORK), + ENUM_TARGET(MADV_COLD), + ENUM_TARGET(MADV_PAGEOUT), + ENUM_TARGET(MADV_POPULATE_READ), + ENUM_TARGET(MADV_POPULATE_WRITE), + ENUM_TARGET(MADV_DONTNEED_LOCKED), + ENUM_END, +}; + +static void +print_madvise(CPUArchState *cpu_env, const struct syscallname *name, + abi_long arg0, abi_long arg1, abi_long arg2, + abi_long arg3, abi_long arg4, abi_long arg5) +{ + print_syscall_prologue(name); + print_pointer(arg0, 0); + print_raw_param("%d", arg1, 0); + print_enums(madvise_advice, arg2, 1); + print_syscall_epilogue(name); +} +#endif + #if defined(TARGET_NR_fstat) || defined(TARGET_NR_fstat64) static void print_fstat(CPUArchState *cpu_env, const struct syscallname *name, diff --git a/linux-user/strace.list b/linux-user/strace.list index 215d971b2a..c6f748505a 100644 --- a/linux-user/strace.list +++ b/linux-user/strace.list @@ -542,7 +542,7 @@ { TARGET_NR_lstat64, "lstat64" , NULL, print_lstat64, NULL }, #endif #ifdef TARGET_NR_madvise -{ TARGET_NR_madvise, "madvise" , NULL, NULL, NULL }, +{ TARGET_NR_madvise, "madvise" , NULL, print_madvise, NULL }, #endif #ifdef TARGET_NR_madvise1 { TARGET_NR_madvise1, "madvise1" , NULL, NULL, NULL }, |