From: "Alex Bennée" <alex.bennee@linaro.org>
To: qemu-devel@nongnu.org
Cc: "Riku Voipio" <riku.voipio@iki.fi>,
"Alex Bennée" <alex.bennee@linaro.org>,
"Laurent Vivier" <laurent@vivier.eu>
Subject: [PATCH v2 2/6] linux-user: convert target_mmap debug to tracepoint
Date: Thu, 5 Dec 2019 12:25:13 +0000 [thread overview]
Message-ID: <20191205122518.10010-3-alex.bennee@linaro.org> (raw)
In-Reply-To: <20191205122518.10010-1-alex.bennee@linaro.org>
It is a pain to re-compile when you need to debug and tracepoints are
a fairly low impact way to instrument QEMU.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
---
linux-user/mmap.c | 27 +--------------------------
linux-user/trace-events | 1 +
2 files changed, 2 insertions(+), 26 deletions(-)
diff --git a/linux-user/mmap.c b/linux-user/mmap.c
index 26a83e74069..f4f10deaeac 100644
--- a/linux-user/mmap.c
+++ b/linux-user/mmap.c
@@ -363,32 +363,7 @@ abi_long target_mmap(abi_ulong start, abi_ulong len, int prot,
abi_ulong ret, end, real_start, real_end, retaddr, host_offset, host_len;
mmap_lock();
-#ifdef DEBUG_MMAP
- {
- printf("mmap: start=0x" TARGET_ABI_FMT_lx
- " len=0x" TARGET_ABI_FMT_lx " prot=%c%c%c flags=",
- start, len,
- prot & PROT_READ ? 'r' : '-',
- prot & PROT_WRITE ? 'w' : '-',
- prot & PROT_EXEC ? 'x' : '-');
- if (flags & MAP_FIXED)
- printf("MAP_FIXED ");
- if (flags & MAP_ANONYMOUS)
- printf("MAP_ANON ");
- switch(flags & MAP_TYPE) {
- case MAP_PRIVATE:
- printf("MAP_PRIVATE ");
- break;
- case MAP_SHARED:
- printf("MAP_SHARED ");
- break;
- default:
- printf("[MAP_TYPE=0x%x] ", flags & MAP_TYPE);
- break;
- }
- printf("fd=%d offset=" TARGET_ABI_FMT_lx "\n", fd, offset);
- }
-#endif
+ trace_target_mmap(start, len, prot, flags, fd, offset);
if (!len) {
errno = EINVAL;
diff --git a/linux-user/trace-events b/linux-user/trace-events
index 8419243de4e..8d8d4c3c68c 100644
--- a/linux-user/trace-events
+++ b/linux-user/trace-events
@@ -14,3 +14,4 @@ user_s390x_restore_sigregs(void *env, uint64_t sc_psw_addr, uint64_t env_psw_add
# mmap.c
target_mprotect(uint64_t start, uint64_t len, int flags) "start=0x%"PRIx64 " len=0x%"PRIx64 " prot=0x%x"
+target_mmap(uint64_t start, uint64_t len, int pflags, int mflags, int fd, uint64_t offset) "start=0x%"PRIx64 " len=0x%"PRIx64 " prot=0x%x flags=0x%x fd=%d offset=0x%"PRIx64
--
2.20.1
next prev parent reply other threads:[~2019-12-05 13:40 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-05 12:25 [PATCH v2 0/6] linux-user mmap debug cleanup Alex Bennée
2019-12-05 12:25 ` [PATCH v2 1/6] linux-user: convert target_mprotect debug to tracepoint Alex Bennée
2019-12-05 15:43 ` Richard Henderson
2019-12-11 14:46 ` Laurent Vivier
2019-12-05 12:25 ` Alex Bennée [this message]
2019-12-05 15:44 ` [PATCH v2 2/6] linux-user: convert target_mmap " Richard Henderson
2019-12-11 14:48 ` Laurent Vivier
2019-12-05 12:25 ` [PATCH v2 3/6] linux-user: add target_mmap_complete tracepoint Alex Bennée
2019-12-11 14:48 ` Laurent Vivier
2019-12-05 12:25 ` [PATCH v2 4/6] linux-user: log page table changes under -d page Alex Bennée
2019-12-05 15:45 ` Richard Henderson
2019-12-11 14:53 ` Laurent Vivier
2019-12-05 12:25 ` [PATCH v2 5/6] linux-user: convert target_munmap debug to a tracepoint Alex Bennée
2019-12-11 14:54 ` Laurent Vivier
2019-12-16 12:00 ` Alex Bennée
2019-12-16 12:05 ` Laurent Vivier
2019-12-18 20:03 ` Alex Bennée
2019-12-05 12:25 ` [PATCH v2 6/6] trace: replace hand-crafted pattern_glob with g_pattern_match_simple Alex Bennée
2019-12-05 15:51 ` Richard Henderson
2019-12-06 11:03 ` Stefan Hajnoczi
2019-12-06 11:59 ` Alex Bennée
2019-12-09 15:58 ` Stefan Hajnoczi
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