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Fri, 01 Mar 2024 18:46:19 +0100 From: Sven Schnelle To: =?utf-8?q?Alex_Benn=C3=A9e?= , Alexandre Iooss , Mahmoud Mandour , Pierrick Bouvier Cc: qemu-devel@nongnu.org, deller@gmx.de, Sven Schnelle Subject: [PATCH v3 01/12] util/log: convert debug_regions to GList Date: Fri, 1 Mar 2024 18:45:58 +0100 Message-ID: <20240301174609.1964379-2-svens@stackframe.org> X-Mailer: git-send-email 2.43.2 In-Reply-To: <20240301174609.1964379-1-svens@stackframe.org> References: <20240301174609.1964379-1-svens@stackframe.org> MIME-Version: 1.0 Received-SPF: pass client-ip=23.83.223.94; envelope-from=svens@stackframe.org; helo=ivory.cherry.relay.mailchannels.net X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_MED=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org In preparation of making the parsing part of qemu_set_dfilter_ranges() available to other users, convert it to return a GList, so the result can be used with other functions taking a GList of struct Range. Signed-off-by: Sven Schnelle --- util/log.c | 36 ++++++++++++++++++------------------ 1 file changed, 18 insertions(+), 18 deletions(-) diff --git a/util/log.c b/util/log.c index d36c98da0b..779c0689a9 100644 --- a/util/log.c +++ b/util/log.c @@ -46,7 +46,7 @@ static __thread Notifier qemu_log_thread_cleanup_notifier; int qemu_loglevel; static bool log_per_thread; -static GArray *debug_regions; +static GList *debug_regions; /* Returns true if qemu_log() will really write somewhere. */ bool qemu_log_enabled(void) @@ -368,38 +368,36 @@ bool qemu_set_log_filename_flags(const char *name, int flags, Error **errp) */ bool qemu_log_in_addr_range(uint64_t addr) { - if (debug_regions) { - int i = 0; - for (i = 0; i < debug_regions->len; i++) { - Range *range = &g_array_index(debug_regions, Range, i); - if (range_contains(range, addr)) { - return true; - } - } - return false; - } else { + GList *p; + + if (!debug_regions) { return true; } -} + for (p = g_list_first(debug_regions); p; p = g_list_next(p)) { + if (range_contains(p->data, addr)) { + return true; + } + } + return false; +} void qemu_set_dfilter_ranges(const char *filter_spec, Error **errp) { gchar **ranges = g_strsplit(filter_spec, ",", 0); + struct Range *range = NULL; int i; if (debug_regions) { - g_array_unref(debug_regions); + g_list_free_full(debug_regions, g_free); debug_regions = NULL; } - debug_regions = g_array_sized_new(FALSE, FALSE, - sizeof(Range), g_strv_length(ranges)); for (i = 0; ranges[i]; i++) { const char *r = ranges[i]; const char *range_op, *r2, *e; uint64_t r1val, r2val, lob, upb; - struct Range range; + range = g_new0(struct Range, 1); range_op = strstr(r, "-"); r2 = range_op ? range_op + 1 : NULL; @@ -448,10 +446,12 @@ void qemu_set_dfilter_ranges(const char *filter_spec, Error **errp) error_setg(errp, "Invalid range"); goto out; } - range_set_bounds(&range, lob, upb); - g_array_append_val(debug_regions, range); + range_set_bounds(range, lob, upb); + debug_regions = g_list_append(debug_regions, range); + range = NULL; } out: + g_free(range); g_strfreev(ranges); 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Fri, 01 Mar 2024 18:46:20 +0100 From: Sven Schnelle To: =?utf-8?q?Alex_Benn=C3=A9e?= , Alexandre Iooss , Mahmoud Mandour , Pierrick Bouvier Cc: qemu-devel@nongnu.org, deller@gmx.de, Sven Schnelle Subject: [PATCH v3 02/12] util/log: make qemu_set_dfilter_ranges() take a GList Date: Fri, 1 Mar 2024 18:45:59 +0100 Message-ID: <20240301174609.1964379-3-svens@stackframe.org> X-Mailer: git-send-email 2.43.2 In-Reply-To: <20240301174609.1964379-1-svens@stackframe.org> References: <20240301174609.1964379-1-svens@stackframe.org> MIME-Version: 1.0 Received-SPF: pass client-ip=23.83.216.33; envelope-from=svens@stackframe.org; helo=chameleon.pear.relay.mailchannels.net X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_MED=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org In preparation of making qemu_set_dfilter_ranges() available to other users, move the code to a new function range_list_from_string() which takes an additional GList argument. Signed-off-by: Sven Schnelle --- util/log.c | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-) diff --git a/util/log.c b/util/log.c index 779c0689a9..f183ea4e4d 100644 --- a/util/log.c +++ b/util/log.c @@ -382,15 +382,16 @@ bool qemu_log_in_addr_range(uint64_t addr) return false; } -void qemu_set_dfilter_ranges(const char *filter_spec, Error **errp) +static void range_list_from_string(GList **out_ranges, const char *filter_spec, + Error **errp) { gchar **ranges = g_strsplit(filter_spec, ",", 0); struct Range *range = NULL; int i; - if (debug_regions) { - g_list_free_full(debug_regions, g_free); - debug_regions = NULL; + if (*out_ranges) { + g_list_free_full(*out_ranges, g_free); + *out_ranges = NULL; } for (i = 0; ranges[i]; i++) { @@ -447,7 +448,7 @@ void qemu_set_dfilter_ranges(const char *filter_spec, Error **errp) goto out; } range_set_bounds(range, lob, upb); - debug_regions = g_list_append(debug_regions, range); + *out_ranges = g_list_append(*out_ranges, range); 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Fri, 01 Mar 2024 18:46:21 +0100 From: Sven Schnelle To: =?utf-8?q?Alex_Benn=C3=A9e?= , Alexandre Iooss , Mahmoud Mandour , Pierrick Bouvier Cc: qemu-devel@nongnu.org, deller@gmx.de, Sven Schnelle Subject: [PATCH v3 03/12] util/range: move range_list_from_string() to range.c Date: Fri, 1 Mar 2024 18:46:00 +0100 Message-ID: <20240301174609.1964379-4-svens@stackframe.org> X-Mailer: git-send-email 2.43.2 In-Reply-To: <20240301174609.1964379-1-svens@stackframe.org> References: <20240301174609.1964379-1-svens@stackframe.org> MIME-Version: 1.0 Received-SPF: pass client-ip=23.83.209.21; envelope-from=svens@stackframe.org; helo=bongo.birch.relay.mailchannels.net X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_MED=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Signed-off-by: Sven Schnelle --- include/qemu/range.h | 7 ++++ util/log.c | 74 ------------------------------------------ util/range.c | 76 ++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 83 insertions(+), 74 deletions(-) diff --git a/include/qemu/range.h b/include/qemu/range.h index 205e1da76d..530b0c7db1 100644 --- a/include/qemu/range.h +++ b/include/qemu/range.h @@ -233,4 +233,11 @@ void range_inverse_array(GList *in_ranges, GList **out_ranges, uint64_t low, uint64_t high); +/* + * Parse a comma separated list of address ranges into a @GArray + * of @Range entries. On error @errp is set. + */ +void range_list_from_string(GList **out_ranges, const char *filter_spec, + Error **errp); + #endif diff --git a/util/log.c b/util/log.c index f183ea4e4d..90897ef0f9 100644 --- a/util/log.c +++ b/util/log.c @@ -382,80 +382,6 @@ bool qemu_log_in_addr_range(uint64_t addr) return false; } -static void range_list_from_string(GList **out_ranges, const char *filter_spec, - Error **errp) -{ - gchar **ranges = g_strsplit(filter_spec, ",", 0); - struct Range *range = NULL; - int i; - - if (*out_ranges) { - g_list_free_full(*out_ranges, g_free); - *out_ranges = NULL; - } - - for (i = 0; ranges[i]; i++) { - const char *r = ranges[i]; - const char *range_op, *r2, *e; - uint64_t r1val, r2val, lob, upb; - range = g_new0(struct Range, 1); - - range_op = strstr(r, "-"); - r2 = range_op ? range_op + 1 : NULL; - if (!range_op) { - range_op = strstr(r, "+"); - r2 = range_op ? range_op + 1 : NULL; - } - if (!range_op) { - range_op = strstr(r, ".."); - r2 = range_op ? range_op + 2 : NULL; - } - if (!range_op) { - error_setg(errp, "Bad range specifier"); - goto out; - } - - if (qemu_strtou64(r, &e, 0, &r1val) - || e != range_op) { - error_setg(errp, "Invalid number to the left of %.*s", - (int)(r2 - range_op), range_op); - goto out; - } - if (qemu_strtou64(r2, NULL, 0, &r2val)) { - error_setg(errp, "Invalid number to the right of %.*s", - (int)(r2 - range_op), range_op); - goto out; - } - - switch (*range_op) { - case '+': - lob = r1val; - upb = r1val + r2val - 1; - break; - case '-': - upb = r1val; - lob = r1val - (r2val - 1); - break; - case '.': - lob = r1val; - upb = r2val; - break; - default: - g_assert_not_reached(); - } - if (lob > upb) { - error_setg(errp, "Invalid range"); - goto out; - } - range_set_bounds(range, lob, upb); - *out_ranges = g_list_append(*out_ranges, range); - range = NULL; - } -out: - g_free(range); - g_strfreev(ranges); -} - void qemu_set_dfilter_ranges(const char *filter_spec, Error **errp) { range_list_from_string(&debug_regions, filter_spec, errp); diff --git a/util/range.c b/util/range.c index f3f40098d5..bd2d0961bd 100644 --- a/util/range.c +++ b/util/range.c @@ -19,6 +19,8 @@ #include "qemu/osdep.h" #include "qemu/range.h" +#include "qemu/cutils.h" +#include "qapi/error.h" int range_compare(Range *a, Range *b) { @@ -121,3 +123,77 @@ void range_inverse_array(GList *in, GList **rev, exit: *rev = out; } + +void range_list_from_string(GList **out_ranges, const char *filter_spec, + Error **errp) +{ + gchar **ranges = g_strsplit(filter_spec, ",", 0); + struct Range *range = NULL; + int i; + + if (*out_ranges) { + g_list_free_full(*out_ranges, g_free); + *out_ranges = NULL; + } + + for (i = 0; ranges[i]; i++) { + const char *r = ranges[i]; + const char *range_op, *r2, *e; + uint64_t r1val, r2val, lob, upb; + range = g_new0(struct Range, 1); + + range_op = strstr(r, "-"); + r2 = range_op ? range_op + 1 : NULL; + if (!range_op) { + range_op = strstr(r, "+"); + r2 = range_op ? range_op + 1 : NULL; + } + if (!range_op) { + range_op = strstr(r, ".."); + r2 = range_op ? range_op + 2 : NULL; + } + if (!range_op) { + error_setg(errp, "Bad range specifier"); + goto out; + } + + if (qemu_strtou64(r, &e, 0, &r1val) + || e != range_op) { + error_setg(errp, "Invalid number to the left of %.*s", + (int)(r2 - range_op), range_op); + goto out; + } + if (qemu_strtou64(r2, NULL, 0, &r2val)) { + error_setg(errp, "Invalid number to the right of %.*s", + (int)(r2 - range_op), range_op); + goto out; + } + + switch (*range_op) { + case '+': + lob = r1val; + upb = r1val + r2val - 1; + break; + case '-': + upb = r1val; + lob = r1val - (r2val - 1); + break; + case '.': + lob = r1val; + upb = r2val; + break; + default: + g_assert_not_reached(); + } + if (lob > upb) { + error_setg(errp, "Invalid range"); + goto out; + } + range_set_bounds(range, lob, upb); + *out_ranges = g_list_append(*out_ranges, range); + range = NULL; + } +out: + g_free(range); + g_strfreev(ranges); +} From patchwork Fri Mar 1 17:46:01 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sven Schnelle X-Patchwork-Id: 1906842 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; 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Fri, 01 Mar 2024 18:46:23 +0100 From: Sven Schnelle To: =?utf-8?q?Alex_Benn=C3=A9e?= , Alexandre Iooss , Mahmoud Mandour , Pierrick Bouvier Cc: qemu-devel@nongnu.org, deller@gmx.de, Sven Schnelle Subject: [PATCH v3 04/12] util/range: add range_list_free() Date: Fri, 1 Mar 2024 18:46:01 +0100 Message-ID: <20240301174609.1964379-5-svens@stackframe.org> X-Mailer: git-send-email 2.43.2 In-Reply-To: <20240301174609.1964379-1-svens@stackframe.org> References: <20240301174609.1964379-1-svens@stackframe.org> MIME-Version: 1.0 Received-SPF: pass client-ip=23.83.216.32; envelope-from=svens@stackframe.org; helo=catfish.pear.relay.mailchannels.net X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_MED=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Introduce range_list_free(), which takes a GList of ranges and frees the list and each range. Signed-off-by: Sven Schnelle --- include/qemu/range.h | 5 +++++ util/range.c | 5 +++++ 2 files changed, 10 insertions(+) diff --git a/include/qemu/range.h b/include/qemu/range.h index 530b0c7db1..4ff9799d89 100644 --- a/include/qemu/range.h +++ b/include/qemu/range.h @@ -240,4 +240,9 @@ void range_inverse_array(GList *in_ranges, void range_list_from_string(GList **out_ranges, const char *filter_spec, Error **errp); +/* + * Free a list of ranges. + */ +void range_list_free(GList *ranges); + #endif diff --git a/util/range.c b/util/range.c index bd2d0961bd..7234ab7a53 100644 --- a/util/range.c +++ b/util/range.c @@ -197,3 +197,8 @@ out: g_free(range); g_strfreev(ranges); } + +void range_list_free(GList *ranges) +{ + g_list_free_full(ranges, g_free); +} From patchwork Fri Mar 1 17:46:02 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sven Schnelle X-Patchwork-Id: 1906848 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; 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Fri, 01 Mar 2024 18:46:24 +0100 From: Sven Schnelle To: =?utf-8?q?Alex_Benn=C3=A9e?= , Alexandre Iooss , Mahmoud Mandour , Pierrick Bouvier Cc: qemu-devel@nongnu.org, deller@gmx.de, Sven Schnelle Subject: [PATCH v3 05/12] util/range: use append_new_range() in range_list_from_string() Date: Fri, 1 Mar 2024 18:46:02 +0100 Message-ID: <20240301174609.1964379-6-svens@stackframe.org> X-Mailer: git-send-email 2.43.2 In-Reply-To: <20240301174609.1964379-1-svens@stackframe.org> References: <20240301174609.1964379-1-svens@stackframe.org> MIME-Version: 1.0 Received-SPF: pass client-ip=23.83.209.75; envelope-from=svens@stackframe.org; helo=gorilla.birch.relay.mailchannels.net X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_MED=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Use append_new_ranges() instead of manually allocating and filling the new range member. Signed-off-by: Sven Schnelle --- util/range.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/util/range.c b/util/range.c index 7234ab7a53..db535de9a7 100644 --- a/util/range.c +++ b/util/range.c @@ -128,7 +128,6 @@ void range_list_from_string(GList **out_ranges, const char *filter_spec, Error **errp) { gchar **ranges = g_strsplit(filter_spec, ",", 0); - struct Range *range = NULL; int i; if (*out_ranges) { @@ -140,7 +139,6 @@ void range_list_from_string(GList **out_ranges, const char *filter_spec, const char *r = ranges[i]; const char *range_op, *r2, *e; uint64_t r1val, r2val, lob, upb; - range = g_new0(struct Range, 1); range_op = strstr(r, "-"); r2 = range_op ? range_op + 1 : NULL; @@ -189,12 +187,9 @@ void range_list_from_string(GList **out_ranges, const char *filter_spec, error_setg(errp, "Invalid range"); goto out; } - range_set_bounds(range, lob, upb); - *out_ranges = g_list_append(*out_ranges, range); - range = NULL; + *out_ranges = append_new_range(*out_ranges, lob, upb); 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Fri, 01 Mar 2024 18:46:24 +0100 From: Sven Schnelle To: =?utf-8?q?Alex_Benn=C3=A9e?= , Alexandre Iooss , Mahmoud Mandour , Pierrick Bouvier Cc: qemu-devel@nongnu.org, deller@gmx.de, Sven Schnelle Subject: [PATCH v3 06/12] util/range: split up range_list_from_string() Date: Fri, 1 Mar 2024 18:46:03 +0100 Message-ID: <20240301174609.1964379-7-svens@stackframe.org> X-Mailer: git-send-email 2.43.2 In-Reply-To: <20240301174609.1964379-1-svens@stackframe.org> References: <20240301174609.1964379-1-svens@stackframe.org> MIME-Version: 1.0 Received-SPF: pass client-ip=23.83.223.95; envelope-from=svens@stackframe.org; helo=jackal.cherry.relay.mailchannels.net X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_MED=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Makes the code a bit easier to read and maintain. Signed-off-by: Sven Schnelle --- util/range.c | 119 ++++++++++++++++++++++++++++++--------------------- 1 file changed, 70 insertions(+), 49 deletions(-) diff --git a/util/range.c b/util/range.c index db535de9a7..8c463995e7 100644 --- a/util/range.c +++ b/util/range.c @@ -124,6 +124,74 @@ exit: *rev = out; } +static const char *split_single_range(const char *r, const char **r2) +{ + char *range_op; + + range_op = strstr(r, "-"); + if (range_op) { + *r2 = range_op + 1; + return range_op; + } + range_op = strstr(r, "+"); + if (range_op) { + *r2 = range_op + 1; + return range_op; + } + range_op = strstr(r, ".."); + if (range_op) { + *r2 = range_op + 2; + return range_op; + } + return NULL; +} + +static int parse_single_range(const char *r, Error **errp, + uint64_t *lob, uint64_t *upb) +{ + const char *range_op, *r2, *e; + uint64_t r1val, r2val; + + range_op = split_single_range(r, &r2); + if (!range_op) { + error_setg(errp, "Bad range specifier"); + return 1; + } + if (qemu_strtou64(r, &e, 0, &r1val) + || e != range_op) { + error_setg(errp, "Invalid number to the left of %.*s", + (int)(r2 - range_op), range_op); + return 1; + } + if (qemu_strtou64(r2, NULL, 0, &r2val)) { + error_setg(errp, "Invalid number to the right of %.*s", + (int)(r2 - range_op), range_op); + return 1; + } + + switch (*range_op) { + case '+': + *lob = r1val; + *upb = r1val + r2val - 1; + break; + case '-': + *upb = r1val; + *lob = r1val - (r2val - 1); + break; + case '.': + *lob = r1val; + *upb = r2val; + break; + default: + g_assert_not_reached(); + } + if (*lob > *upb) { + error_setg(errp, "Invalid range"); + return 1; + } + return 0; +} + void range_list_from_string(GList **out_ranges, const char *filter_spec, Error **errp) { @@ -136,60 +204,13 @@ void range_list_from_string(GList **out_ranges, const char *filter_spec, } for (i = 0; ranges[i]; i++) { - const char *r = ranges[i]; - const char *range_op, *r2, *e; - uint64_t r1val, r2val, lob, upb; - - range_op = strstr(r, "-"); - r2 = range_op ? range_op + 1 : NULL; - if (!range_op) { - range_op = strstr(r, "+"); - r2 = range_op ? range_op + 1 : NULL; - } - if (!range_op) { - range_op = strstr(r, ".."); - r2 = range_op ? range_op + 2 : NULL; - } - if (!range_op) { - error_setg(errp, "Bad range specifier"); - goto out; - } - - if (qemu_strtou64(r, &e, 0, &r1val) - || e != range_op) { - error_setg(errp, "Invalid number to the left of %.*s", - (int)(r2 - range_op), range_op); - goto out; - } - if (qemu_strtou64(r2, NULL, 0, &r2val)) { - error_setg(errp, "Invalid number to the right of %.*s", - (int)(r2 - range_op), range_op); - goto out; - } + uint64_t lob, upb; - switch (*range_op) { - case '+': - lob = r1val; - upb = r1val + r2val - 1; + if (parse_single_range(ranges[i], errp, &lob, &upb)) { break; - case '-': - upb = r1val; - lob = r1val - (r2val - 1); - break; - case '.': - lob = r1val; - upb = r2val; - break; - default: - g_assert_not_reached(); - } - if (lob > upb) { - error_setg(errp, "Invalid range"); - goto out; } *out_ranges = append_new_range(*out_ranges, lob, upb); } -out: g_strfreev(ranges); } From patchwork Fri Mar 1 17:46:04 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sven Schnelle X-Patchwork-Id: 1906833 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; 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Fri, 01 Mar 2024 18:46:25 +0100 From: Sven Schnelle To: =?utf-8?q?Alex_Benn=C3=A9e?= , Alexandre Iooss , Mahmoud Mandour , Pierrick Bouvier Cc: qemu-devel@nongnu.org, deller@gmx.de, Sven Schnelle Subject: [PATCH v3 07/12] util/range: make range_list_from_string() accept a single number Date: Fri, 1 Mar 2024 18:46:04 +0100 Message-ID: <20240301174609.1964379-8-svens@stackframe.org> X-Mailer: git-send-email 2.43.2 In-Reply-To: <20240301174609.1964379-1-svens@stackframe.org> References: <20240301174609.1964379-1-svens@stackframe.org> MIME-Version: 1.0 Received-SPF: pass client-ip=23.83.223.97; envelope-from=svens@stackframe.org; helo=kudu.cherry.relay.mailchannels.net X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_MED=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org To use range_list_from_string() as a replacement in the execlog plugin, make it accept single numbers instead of a range. This might also be useful for the already present debug_ranges filtering. Signed-off-by: Sven Schnelle --- util/range.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/util/range.c b/util/range.c index 8c463995e7..7784c21b12 100644 --- a/util/range.c +++ b/util/range.c @@ -154,6 +154,11 @@ static int parse_single_range(const char *r, Error **errp, range_op = split_single_range(r, &r2); if (!range_op) { + if (!qemu_strtou64(r, &e, 0, &r1val) && *e == '\0') { + *lob = r1val; + *upb = r1val; + return 0; + } error_setg(errp, "Bad range specifier"); return 1; } From patchwork Fri Mar 1 17:46:05 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sven Schnelle X-Patchwork-Id: 1906843 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (1024-bit key; secure) header.d=stackframe.org header.i=@stackframe.org header.a=rsa-sha256 header.s=duo-1634547266507-560c42ae header.b=Vy3IXlR0; dkim=pass (2048-bit key; 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Fri, 01 Mar 2024 18:46:26 +0100 From: Sven Schnelle To: =?utf-8?q?Alex_Benn=C3=A9e?= , Alexandre Iooss , Mahmoud Mandour , Pierrick Bouvier Cc: qemu-devel@nongnu.org, deller@gmx.de, Sven Schnelle Subject: [PATCH v3 08/12] qemu/range: add range_list_contains() function Date: Fri, 1 Mar 2024 18:46:05 +0100 Message-ID: <20240301174609.1964379-9-svens@stackframe.org> X-Mailer: git-send-email 2.43.2 In-Reply-To: <20240301174609.1964379-1-svens@stackframe.org> References: <20240301174609.1964379-1-svens@stackframe.org> MIME-Version: 1.0 Received-SPF: pass client-ip=23.83.223.97; envelope-from=svens@stackframe.org; helo=kudu.cherry.relay.mailchannels.net X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_MED=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Add a small inline function to match an address against a list of ranges. Signed-off-by: Sven Schnelle --- include/qemu/range.h | 12 ++++++++++++ util/log.c | 10 +--------- 2 files changed, 13 insertions(+), 9 deletions(-) diff --git a/include/qemu/range.h b/include/qemu/range.h index 4ff9799d89..7ef9b3d5fb 100644 --- a/include/qemu/range.h +++ b/include/qemu/range.h @@ -57,6 +57,18 @@ static inline bool range_contains(const Range *range, uint64_t val) return val >= range->lob && val <= range->upb; } +static inline bool range_list_contains(GList *ranges, uint64_t val) +{ + GList *p; + + for (p = g_list_first(ranges); p; p = g_list_next(p)) { + if (range_contains(p->data, val)) { + return true; + } + } + return false; +} + /* Initialize @range to the empty range */ static inline void range_make_empty(Range *range) { diff --git a/util/log.c b/util/log.c index 90897ef0f9..032110d700 100644 --- a/util/log.c +++ b/util/log.c @@ -368,18 +368,10 @@ bool qemu_set_log_filename_flags(const char *name, int flags, Error **errp) */ bool qemu_log_in_addr_range(uint64_t addr) { - GList *p; 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Fri, 01 Mar 2024 18:46:27 +0100 From: Sven Schnelle To: =?utf-8?q?Alex_Benn=C3=A9e?= , Alexandre Iooss , Mahmoud Mandour , Pierrick Bouvier Cc: qemu-devel@nongnu.org, deller@gmx.de, Sven Schnelle Subject: [PATCH v3 09/12] plugins: add API to print errors Date: Fri, 1 Mar 2024 18:46:06 +0100 Message-ID: <20240301174609.1964379-10-svens@stackframe.org> X-Mailer: git-send-email 2.43.2 In-Reply-To: <20240301174609.1964379-1-svens@stackframe.org> References: <20240301174609.1964379-1-svens@stackframe.org> MIME-Version: 1.0 Received-SPF: pass client-ip=23.83.208.37; envelope-from=svens@stackframe.org; helo=cockroach.apple.relay.mailchannels.net X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_MED=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org add qemu_plugin_error_print() which is a wrapper around error_report_err(). This will be used by qemu_plugin_parse_filter_ranges() to report parse failures. Signed-off-by: Sven Schnelle --- include/qemu/qemu-plugin.h | 12 ++++++++++++ plugins/api.c | 7 +++++++ plugins/qemu-plugins.symbols | 1 + 3 files changed, 20 insertions(+) diff --git a/include/qemu/qemu-plugin.h b/include/qemu/qemu-plugin.h index 45e2ebc8f8..5839feea4d 100644 --- a/include/qemu/qemu-plugin.h +++ b/include/qemu/qemu-plugin.h @@ -752,5 +752,17 @@ QEMU_PLUGIN_API int qemu_plugin_read_register(struct qemu_plugin_register *handle, GByteArray *buf); +typedef struct Error Error; + +/** + * qemu_plugin_error_print() - print and free error + * + * @err: a @Error handle + * + * This function shows and and frees the supplied error. + */ + +QEMU_PLUGIN_API +void qemu_plugin_error_print(Error *err); #endif /* QEMU_QEMU_PLUGIN_H */ diff --git a/plugins/api.c b/plugins/api.c index 81f43c9ce8..8fd3a8964a 100644 --- a/plugins/api.c +++ b/plugins/api.c @@ -45,6 +45,7 @@ #include "exec/ram_addr.h" #include "disas/disas.h" #include "plugin.h" +#include "qapi/error.h" #ifndef CONFIG_USER_ONLY #include "qemu/plugin-memory.h" #include "hw/boards.h" @@ -465,3 +466,9 @@ int qemu_plugin_read_register(struct qemu_plugin_register *reg, GByteArray *buf) return gdb_read_register(current_cpu, buf, GPOINTER_TO_INT(reg)); } + +void qemu_plugin_error_print(Error *err) +{ + error_report_err(err); +} + diff --git a/plugins/qemu-plugins.symbols b/plugins/qemu-plugins.symbols index 27fe97239b..b142d11e58 100644 --- a/plugins/qemu-plugins.symbols +++ b/plugins/qemu-plugins.symbols @@ -2,6 +2,7 @@ qemu_plugin_bool_parse; qemu_plugin_end_code; qemu_plugin_entry_code; + qemu_plugin_error_print; qemu_plugin_get_hwaddr; qemu_plugin_get_registers; qemu_plugin_hwaddr_device_name; From patchwork Fri Mar 1 17:46:07 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sven Schnelle X-Patchwork-Id: 1906840 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (1024-bit key; secure) header.d=stackframe.org header.i=@stackframe.org header.a=rsa-sha256 header.s=duo-1634547266507-560c42ae header.b=NhnL8g0b; dkim=pass (2048-bit key; unprotected) header.d=outbound.mailhop.org header.i=@outbound.mailhop.org header.a=rsa-sha256 header.s=dkim-high header.b=t/YCMnMy; 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Fri, 01 Mar 2024 18:46:28 +0100 From: Sven Schnelle To: =?utf-8?q?Alex_Benn=C3=A9e?= , Alexandre Iooss , Mahmoud Mandour , Pierrick Bouvier Cc: qemu-devel@nongnu.org, deller@gmx.de, Sven Schnelle Subject: [PATCH v3 10/12] plugins: add range list API Date: Fri, 1 Mar 2024 18:46:07 +0100 Message-ID: <20240301174609.1964379-11-svens@stackframe.org> X-Mailer: git-send-email 2.43.2 In-Reply-To: <20240301174609.1964379-1-svens@stackframe.org> References: <20240301174609.1964379-1-svens@stackframe.org> MIME-Version: 1.0 Received-SPF: pass client-ip=23.83.214.9; envelope-from=svens@stackframe.org; helo=bactrian.maple.relay.mailchannels.net X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_MED=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Export range_list_from_string(), range_contains() and range_list_free() to allow plugins to parse filter ranges and match them to avoid reimplementing this functionality. Signed-off-by: Sven Schnelle --- include/qemu/qemu-plugin.h | 41 ++++++++++++++++++++++++++++++++++++ plugins/api.c | 18 ++++++++++++++++ plugins/qemu-plugins.symbols | 3 +++ 3 files changed, 62 insertions(+) diff --git a/include/qemu/qemu-plugin.h b/include/qemu/qemu-plugin.h index 5839feea4d..4910a63d70 100644 --- a/include/qemu/qemu-plugin.h +++ b/include/qemu/qemu-plugin.h @@ -765,4 +765,45 @@ typedef struct Error Error; QEMU_PLUGIN_API void qemu_plugin_error_print(Error *err); +typedef GList qemu_plugin_range_list; + +/** + * qemu_plugin_ranges_from_string() - parse a filter range string + * + * @out_ranges: a pointer to a @qemu_plugin_range_list pointer + * @filter_spec: input string + * @errp: @Error string on parse failure + * + * This function parses a filter specification string and stores the + * parsed adress ranges found in @out. On parse failure a @Error pointer + * is stored in @errp. The function accepts a comma-separated list + * of start and end addresses or single addresses. + */ +QEMU_PLUGIN_API +void qemu_plugin_range_list_from_string(qemu_plugin_range_list **out_range, + const char *filter_spec, + Error **errp); + +/** + * qemu_plugin_range_list_contains() - match a value against a list + * of ranges + * + * @ranges: a pointer to a @qemu_plugin_range_list + * @val: the value to match + * + * This function matches @val against the adress range list in @ranges. + * On success, true is returned, otherwise false. + */ +QEMU_PLUGIN_API +bool qemu_plugin_range_list_contains(qemu_plugin_range_list *ranges, + uint64_t val); + +/** + * qemu_plugin_range_list_free() - free a list of ranges + * + * @ranges: a pointer to the list to be freed + */ +QEMU_PLUGIN_API +void qemu_plugin_range_list_free(qemu_plugin_range_list *ranges); + #endif /* QEMU_QEMU_PLUGIN_H */ diff --git a/plugins/api.c b/plugins/api.c index 8fd3a8964a..8dbd14c648 100644 --- a/plugins/api.c +++ b/plugins/api.c @@ -472,3 +472,21 @@ void qemu_plugin_error_print(Error *err) error_report_err(err); } +void qemu_plugin_range_list_from_string(qemu_plugin_range_list **out, + const char *filter_spec, + Error **errp) +{ + return range_list_from_string(out, filter_spec, errp); +} + +bool qemu_plugin_range_list_contains(qemu_plugin_range_list *ranges, + uint64_t val) +{ + return range_list_contains(ranges, val); +} + +void qemu_plugin_range_list_free(qemu_plugin_range_list *ranges) +{ + return range_list_free(ranges); +} + diff --git a/plugins/qemu-plugins.symbols b/plugins/qemu-plugins.symbols index b142d11e58..472b29fc5f 100644 --- a/plugins/qemu-plugins.symbols +++ b/plugins/qemu-plugins.symbols @@ -21,6 +21,9 @@ qemu_plugin_num_vcpus; qemu_plugin_outs; qemu_plugin_path_to_binary; + qemu_plugin_range_list_contains; + qemu_plugin_range_list_free; + qemu_plugin_range_list_from_string; qemu_plugin_read_register; qemu_plugin_register_atexit_cb; qemu_plugin_register_flush_cb; From patchwork Fri Mar 1 17:46:08 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sven Schnelle X-Patchwork-Id: 1906844 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; 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Fri, 01 Mar 2024 18:46:29 +0100 From: Sven Schnelle To: =?utf-8?q?Alex_Benn=C3=A9e?= , Alexandre Iooss , Mahmoud Mandour , Pierrick Bouvier Cc: qemu-devel@nongnu.org, deller@gmx.de, Sven Schnelle Subject: [PATCH v3 11/12] plugins/execlog: use range list api Date: Fri, 1 Mar 2024 18:46:08 +0100 Message-ID: <20240301174609.1964379-12-svens@stackframe.org> X-Mailer: git-send-email 2.43.2 In-Reply-To: <20240301174609.1964379-1-svens@stackframe.org> References: <20240301174609.1964379-1-svens@stackframe.org> MIME-Version: 1.0 Received-SPF: pass client-ip=23.83.209.75; envelope-from=svens@stackframe.org; helo=gorilla.birch.relay.mailchannels.net X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_MED=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Instead of doing its own implementation, use the new range list API to parse and match address lists. Signed-off-by: Sven Schnelle --- contrib/plugins/execlog.c | 27 +++++++++------------------ 1 file changed, 9 insertions(+), 18 deletions(-) diff --git a/contrib/plugins/execlog.c b/contrib/plugins/execlog.c index a1dfd59ab7..c518797893 100644 --- a/contrib/plugins/execlog.c +++ b/contrib/plugins/execlog.c @@ -35,7 +35,7 @@ static GArray *cpus; static GRWLock expand_array_lock; static GPtrArray *imatches; -static GArray *amatches; +static GList *amatches; static GPtrArray *rmatches; static bool disas_assist; static GMutex add_reg_name_lock; @@ -215,12 +215,8 @@ static void vcpu_tb_trans(qemu_plugin_id_t id, struct qemu_plugin_tb *tb) } if (skip && amatches) { - int j; - for (j = 0; j < amatches->len && skip; j++) { - uint64_t v = g_array_index(amatches, uint64_t, j); - if (v == insn_vaddr) { - skip = false; - } + if (qemu_plugin_range_list_contains(amatches, insn_vaddr)) { + skip = false; } } @@ -398,16 +394,6 @@ static void parse_insn_match(char *match) g_ptr_array_add(imatches, g_strdup(match)); } -static void parse_vaddr_match(char *match) -{ - uint64_t v = g_ascii_strtoull(match, NULL, 16); - - if (!amatches) { - amatches = g_array_new(false, true, sizeof(uint64_t)); - } - g_array_append_val(amatches, v); -} - /* * We have to wait until vCPUs are started before we can check the * patterns find anything. @@ -440,7 +426,12 @@ QEMU_PLUGIN_EXPORT int qemu_plugin_install(qemu_plugin_id_t id, if (g_strcmp0(tokens[0], "ifilter") == 0) { parse_insn_match(tokens[1]); } else if (g_strcmp0(tokens[0], "afilter") == 0) { - parse_vaddr_match(tokens[1]); + Error *err = NULL; + qemu_plugin_range_list_from_string(&amatches, tokens[1], &err); + if (err) { + qemu_plugin_error_print(err); + return -1; + } } else if (g_strcmp0(tokens[0], "reg") == 0) { add_regpat(tokens[1]); } else if (g_strcmp0(tokens[0], "rdisas") == 0) { From patchwork Fri Mar 1 17:46:09 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sven Schnelle X-Patchwork-Id: 1906832 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; 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Fri, 01 Mar 2024 18:46:30 +0100 From: Sven Schnelle To: =?utf-8?q?Alex_Benn=C3=A9e?= , Alexandre Iooss , Mahmoud Mandour , Pierrick Bouvier Cc: qemu-devel@nongnu.org, deller@gmx.de, Sven Schnelle Subject: [PATCH v3 12/12] plugins/execlog: add data address match Date: Fri, 1 Mar 2024 18:46:09 +0100 Message-ID: <20240301174609.1964379-13-svens@stackframe.org> X-Mailer: git-send-email 2.43.2 In-Reply-To: <20240301174609.1964379-1-svens@stackframe.org> References: <20240301174609.1964379-1-svens@stackframe.org> MIME-Version: 1.0 Received-SPF: pass client-ip=23.83.208.37; envelope-from=svens@stackframe.org; helo=cockroach.apple.relay.mailchannels.net X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_MED=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Add a match similar to the afilter address match, but for data addresses. When an address is specified with '-dfilter=0x12345' only load/stores to/from address 0x12345 are printed. All other instructions are hidden. Signed-off-by: Sven Schnelle --- contrib/plugins/execlog.c | 28 +++++++++++++++++++++++----- 1 file changed, 23 insertions(+), 5 deletions(-) diff --git a/contrib/plugins/execlog.c b/contrib/plugins/execlog.c index c518797893..c44fd0e593 100644 --- a/contrib/plugins/execlog.c +++ b/contrib/plugins/execlog.c @@ -27,6 +27,8 @@ typedef struct CPU { GString *last_exec; /* Ptr array of Register */ GPtrArray *registers; + /* whether this instruction should be logged */ + bool log; } CPU; QEMU_PLUGIN_EXPORT int qemu_plugin_version = QEMU_PLUGIN_VERSION; @@ -36,6 +38,7 @@ static GRWLock expand_array_lock; static GPtrArray *imatches; static GList *amatches; +static GList *dmatches; static GPtrArray *rmatches; static bool disas_assist; static GMutex add_reg_name_lock; @@ -62,6 +65,11 @@ static void vcpu_mem(unsigned int cpu_index, qemu_plugin_meminfo_t info, /* Find vCPU in array */ + if (dmatches && !qemu_plugin_range_list_contains(dmatches, vaddr)) { + return; + } + c->log = true; + /* Indicate type of memory access */ if (qemu_plugin_mem_is_store(info)) { g_string_append(s, ", store"); @@ -121,15 +129,17 @@ static void vcpu_insn_exec_with_regs(unsigned int cpu_index, void *udata) if (cpu->registers) { insn_check_regs(cpu); } - - qemu_plugin_outs(cpu->last_exec->str); - qemu_plugin_outs("\n"); + if (cpu->log) { + qemu_plugin_outs(cpu->last_exec->str); + qemu_plugin_outs("\n"); + } } /* Store new instruction in cache */ /* vcpu_mem will add memory access information to last_exec */ g_string_printf(cpu->last_exec, "%u, ", cpu_index); g_string_append(cpu->last_exec, (char *)udata); + cpu->log = dmatches ? false : true; } /* Log last instruction while checking registers, ignore next */ @@ -157,7 +167,7 @@ static void vcpu_insn_exec(unsigned int cpu_index, void *udata) CPU *cpu = get_cpu(cpu_index); /* Print previous instruction in cache */ - if (cpu->last_exec->len) { + if (cpu->log && cpu->last_exec->len) { qemu_plugin_outs(cpu->last_exec->str); qemu_plugin_outs("\n"); } @@ -166,6 +176,7 @@ static void vcpu_insn_exec(unsigned int cpu_index, void *udata) /* vcpu_mem will add memory access information to last_exec */ g_string_printf(cpu->last_exec, "%u, ", cpu_index); g_string_append(cpu->last_exec, (char *)udata); + cpu->log = dmatches ? false : true; } /** @@ -377,7 +388,7 @@ static void plugin_exit(qemu_plugin_id_t id, void *p) g_rw_lock_reader_lock(&expand_array_lock); for (i = 0; i < cpus->len; i++) { CPU *c = get_cpu(i); - if (c->last_exec && c->last_exec->str) { + if (c->log && c->last_exec && c->last_exec->str) { qemu_plugin_outs(c->last_exec->str); qemu_plugin_outs("\n"); } @@ -432,6 +443,13 @@ QEMU_PLUGIN_EXPORT int qemu_plugin_install(qemu_plugin_id_t id, qemu_plugin_error_print(err); return -1; } + } else if (g_strcmp0(tokens[0], "dfilter") == 0) { + Error *err = NULL; + qemu_plugin_range_list_from_string(&dmatches, tokens[1], &err); + if (err) { + qemu_plugin_error_print(err); + return -1; + } } else if (g_strcmp0(tokens[0], "reg") == 0) { add_regpat(tokens[1]); } else if (g_strcmp0(tokens[0], "rdisas") == 0) {